1
|
Fischer A, Martirosian P, Machann J, Fränkle B, Schick F. Frequency shifts of free water signals from compact bone: Simulations and measurements using a UTE-FID sequence. Magn Reson Med 2024; 92:257-268. [PMID: 38282291 DOI: 10.1002/mrm.30027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/22/2023] [Accepted: 01/09/2024] [Indexed: 01/30/2024]
Abstract
PURPOSE Free water in cortical bone is either contained in nearly cylindrical structures (mainly Haversian canals oriented parallel to the bone axis) or in more spherically shaped pores (lacunae). Those cavities have been reported to crucially influence bone quality and mechanical stability. Susceptibility differences between bone and water can lead to water frequency shifts dependent on the geometric characteristics. The purpose of this study is to calculate and measure the frequency distribution of the water signal in MRI in dependence of the microscopic bone geometry. METHODS Finite element modeling and analytical approaches were performed to characterize the free water components of bone. The previously introduced UTE-FID technique providing spatially resolved FID-spectra was used to measure the frequency distribution pixel-wise for different orientations of the bone axis. RESULTS The frequency difference between free water in spherical pores and in canals parallel to B0 amounts up to approximately 100 Hz at 3T. Simulated resonance frequencies showed good agreement with the findings in UTE-FID spectra. The intensity ratio of the two signal components (parallel canals and spherical pores) was found to vary between periosteal and endosteal regions. CONCLUSION Spatially resolved UTE-FID examinations allow the determination of the frequency distribution of signals from free water in cortical bone. This frequency distribution indicates the composition of the signal contributions from nearly spherical cavities and cylindrical canals which allows for further characterization of bone structure and status.
Collapse
Affiliation(s)
- Anja Fischer
- Section on Experimental Radiology, University Hospital Tübingen, Tübingen, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM) of the Helmholtz, Center Munich at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), Tübingen, Germany
| | - Petros Martirosian
- Section on Experimental Radiology, University Hospital Tübingen, Tübingen, Germany
| | - Jürgen Machann
- Section on Experimental Radiology, University Hospital Tübingen, Tübingen, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM) of the Helmholtz, Center Munich at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), Tübingen, Germany
| | - Bernd Fränkle
- Karlsruhe Institute of Technology, Institute of Mechanical Process Engineering and Mechanics, Karlsruhe, Germany
| | - Fritz Schick
- Section on Experimental Radiology, University Hospital Tübingen, Tübingen, Germany
| |
Collapse
|
2
|
Chroston ECM, Bziuk N, Stauber EJ, Ravindran BM, Hielscher A, Smalla K, Wittstock U. Plant glucosinolate biosynthesis and breakdown pathways shape the rhizosphere bacterial/archaeal community. Plant Cell Environ 2024; 47:2127-2145. [PMID: 38419355 DOI: 10.1111/pce.14870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/12/2024] [Accepted: 02/18/2024] [Indexed: 03/02/2024]
Abstract
Rhizosphere microbial community assembly results from microbe-microbe-plant interactions mediated by small molecules of plant and microbial origin. Studies with Arabidopsis thaliana have indicated a critical role of glucosinolates in shaping the root and/or rhizosphere microbial community, likely through breakdown products produced by plant or microbial myrosinases inside or outside of the root. Plant nitrile-specifier proteins (NSPs) promote the formation of nitriles at the expense of isothiocyanates upon glucosinolate hydrolysis with unknown consequences for microbial colonisation of roots and rhizosphere. Here, we generated the A. thaliana triple mutant nsp134 devoid of nitrile formation in root homogenates. Using this line and mutants lacking aliphatic or indole glucosinolate biosynthesis pathways or both, we found bacterial/archaeal alpha-diversity of the rhizosphere to be affected only by the ability to produce aliphatic glucosinolates. In contrast, bacterial/archaeal community composition depended on functional root NSPs as well as on pathways of aliphatic and indole glucosinolate biosynthesis. Effects of NSP deficiency were strikingly distinct from those of impaired glucosinolate biosynthesis. Our results demonstrate that rhizosphere microbial community assembly depends on functional pathways of both glucosinolate biosynthesis and breakdown in support of the hypothesis that glucosinolate hydrolysis by myrosinases and NSPs happens before secretion of products to the rhizosphere.
Collapse
Affiliation(s)
- Eleanor C M Chroston
- Institute of Pharmaceutical Biology, Technische Universität Braunschweig, Braunschweig, Germany
| | - Nina Bziuk
- Julius Kühn Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics, Braunschweig, Germany
| | - Einar J Stauber
- Institute of Pharmaceutical Biology, Technische Universität Braunschweig, Braunschweig, Germany
| | - Beena M Ravindran
- Institute of Pharmaceutical Biology, Technische Universität Braunschweig, Braunschweig, Germany
| | - Annika Hielscher
- Institute of Pharmaceutical Biology, Technische Universität Braunschweig, Braunschweig, Germany
| | - Kornelia Smalla
- Julius Kühn Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics, Braunschweig, Germany
| | - Ute Wittstock
- Institute of Pharmaceutical Biology, Technische Universität Braunschweig, Braunschweig, Germany
| |
Collapse
|
3
|
Trinh-Minh T, Györfi AH, Tomcik M, Tran-Manh C, Zhou X, Dickel N, Tümerdem BS, Kreuter A, Burmann SN, Borchert SV, Hussain RI, Hallén J, Klingelhöfer J, Kunz M, Distler JHW. Effect of Anti-S100A4 Monoclonal Antibody Treatment on Experimental Skin Fibrosis and Systemic Sclerosis-Specific Transcriptional Signatures in Human Skin. Arthritis Rheumatol 2024; 76:783-795. [PMID: 38108109 DOI: 10.1002/art.42781] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 10/31/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
OBJECTIVE S100A4 is a DAMP protein. S100A4 is overexpressed in patients with systemic sclerosis (SSc), and levels correlate with organ involvement and disease activity. S100A4-/- mice are protected from fibrosis. The aim of this study was to assess the antifibrotic effects of anti-S100A4 monoclonal antibody (mAb) in murine models of SSc and in precision cut skin slices of patients with SSc. METHODS The effects of anti-S100A4 mAbs were evaluated in a bleomycin-induced skin fibrosis model and in Tsk-1 mice with a therapeutic dosing regimen. In addition, the effects of anti-S100A4 mAbs on precision cut SSc skin slices were analyzed by RNA sequencing. RESULTS Inhibition of S100A4 was effective in the treatment of pre-established bleomycin-induced skin fibrosis and in regression of pre-established fibrosis with reduced dermal thickening, myofibroblast counts, and collagen accumulation. Transcriptional profiling demonstrated targeting of multiple profibrotic and proinflammatory processes relevant to the pathogenesis of SSc on targeted S100A4 inhibition in a bleomycin-induced skin fibrosis model. Moreover, targeted S100A4 inhibition also modulated inflammation- and fibrosis-relevant gene sets in precision cut SSc skin slices in an ex vivo trial approach. Selected downstream targets of S100A4, such as AMP-activated protein kinase, calsequestrin-1, and phosphorylated STAT3, were validated on the protein level, and STAT3 inhibition was shown to prevent the profibrotic effects of S100A4 on fibroblasts in human skin. CONCLUSION Inhibition of S100A4 confers dual targeting of inflammatory and fibrotic pathways in complementary mouse models of fibrosis and in SSc skin. These effects support the further development of anti-S100A4 mAbs as disease-modifying targeted therapies for SSc.
Collapse
Affiliation(s)
- Thuong Trinh-Minh
- University Hospital Düsseldorf and Heinrich-Heine University, Düsseldorf, Germany
| | | | | | - Cuong Tran-Manh
- University Hospital Düsseldorf and Heinrich-Heine University, Düsseldorf, Germany
| | - Xiang Zhou
- University Hospital Düsseldorf and Heinrich-Heine University, Düsseldorf, Germany
| | - Nicholas Dickel
- Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | | | - Alexander Kreuter
- Helios St. Elisabeth Klinik Oberhausen, University Witten-Herdecke, Oberhausen, and Helios St. Johannes Klinik Duisburg, Duisburg, Germany
| | - Sven-Niklas Burmann
- Helios St. Elisabeth Klinik Oberhausen, University Witten-Herdecke, Oberhausen, Germany
| | | | | | | | | | - Meik Kunz
- Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Jörg H W Distler
- University Hospital Düsseldorf and Heinrich-Heine University, Düsseldorf, Germany
| |
Collapse
|
4
|
Pauly M, Krumbiegel M, Trumpp S, Braig S, Rupprecht T, Kraus C, Uebe S, Reis A, Vasileiou G. Severe manifestation of Rauch-Azzarello syndrome associated with biallelic deletion of CTNND2. Clin Genet 2024. [PMID: 38604781 DOI: 10.1111/cge.14532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
CTNND2 encodes δ-catenin, a component of an adherens junction complex, and plays an important role in neuronal structure and function. To date, only heterozygous loss-of-function CTNND2 variants have been associated with mild neurodevelopmental delay and behavioral anomalies, a condition, which we named Rauch-Azzarello syndrome. Here, we report three siblings of a consanguineous family of Syrian descent with a homozygous deletion encompassing the last 19 exons of CTNND2 predicted to disrupt the transcript. All presented with severe neurodevelopmental delay with absent speech, profound motor delay, stereotypic behavior, microcephaly, short stature, muscular hypotonia with lower limb hypertonia, and variable eye anomalies. The parents and the fourth sibling were heterozygous carriers of the deletion and exhibited mild neurodevelopmental impairment resembling that of the previously described heterozygous individuals. The present study unveils a severe manifestation of CTNND2-associated Rauch-Azzarello syndrome attributed to biallelic loss-of-function aberrations, clinically distinct from the already described mild presentation of heterozygous individuals. Furthermore, we demonstrate novel clinical features in homozygous individuals that have not been reported in heterozygous cases to date.
Collapse
Affiliation(s)
- Melissa Pauly
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Mandy Krumbiegel
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sandra Trumpp
- Children's Clinic, Klinikum Bayreuth GmbH, Bayreuth, Germany
| | - Sonja Braig
- Children's Clinic, Klinikum Bayreuth GmbH, Bayreuth, Germany
| | - Thomas Rupprecht
- Children's Clinic, Klinikum Bayreuth GmbH, Bayreuth, Germany
- MCO, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Cornelia Kraus
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Steffen Uebe
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - André Reis
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Centre for Rare Diseases Erlangen (ZSEER), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Georgia Vasileiou
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Centre for Rare Diseases Erlangen (ZSEER), Universitätsklinikum Erlangen, Erlangen, Germany
| |
Collapse
|
5
|
Mücke MM, Hernández-Tejero M, Gu W, Kuhn M, Janz M, Keller MI, Fullam A, Altepeter L, Mücke VT, Finkelmeier F, Schwarzkopf KM, Cremonese C, Hunyady PM, Heilani MW, Uschner FE, Schierwagen R, Brol MJ, Fischer J, Klein S, Peiffer KH, Hogardt M, Shoaie S, Coenraad MJ, Bojunga J, Arroyo V, Zeuzem S, Kempf VAJ, Welsch C, Laleman W, Bork P, Fernandez J, Trebicka J. Terlipressin therapy is associated with increased risk of colonisation with multidrug-resistant bacteria in patients with decompensated cirrhosis. Aliment Pharmacol Ther 2024; 59:877-888. [PMID: 38414095 DOI: 10.1111/apt.17899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/20/2023] [Accepted: 01/28/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Patients with cirrhosis are susceptible to develop bacterial infections that trigger acute decompensation (AD) and acute-on-chronic liver failure (ACLF). Infections with multidrug-resistant organisms (MDRO) are associated with deleterious outcome. MDRO colonisation frequently proceeds MDRO infections and antibiotic therapy has been associated with MDRO colonisation. AIM The aim of the study was to assess the influence of non-antibiotic medication contributing to MDRO colonisation. METHODS Three hundred twenty-four patients with AD and ACLF admitted to the ICU of Frankfurt University Hospital with MDRO screening were included. Regression models were performed to identify drugs associated with MDRO colonisation. Another cohort (n = 129) from Barcelona was included to validate. A third multi-centre cohort (n = 203) with metagenomic sequencing data of stool was included to detect antibiotic resistance genes. RESULTS A total of 97 patients (30%) were identified to have MDRO colonisation and 35 of them (11%) developed MDRO infection. Patients with MDRO colonisation had significantly higher risk of MDRO infection than those without (p = 0.0098). Apart from antibiotic therapy (odds ratio (OR) 2.91, 95%-confidence interval (CI) 1.82-4.93, p < 0.0001), terlipressin therapy in the previous 14 days was the only independent covariate associated with MDRO colonisation in both cohorts, the overall (OR 9.47, 95%-CI 2.96-30.23, p < 0.0001) and after propensity score matching (OR 5.30, 95%-CI 1.22-23.03, p = 0.011). In the second cohort, prior terlipressin therapy was a risk factor for MDRO colonisation (OR 2.49, 95% CI 0.911-6.823, p = 0.075) and associated with risk of MDRO infection during follow-up (p = 0.017). The validation cohort demonstrated that antibiotic inactivation genes were significantly associated with terlipressin administration (p = 0.001). CONCLUSIONS Our study reports an increased risk of MDRO colonisation in patients with AD or ACLF, who recently received terlipressin therapy, while other commonly prescribed non-antibiotic co-medications had negligible influence. Future prospective trials are needed to confirm these results.
Collapse
Affiliation(s)
- Marcus M Mücke
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - María Hernández-Tejero
- Liver ICU, Liver Unit, Hospital Clinic, University of Barcelona, IDIBAPS and CIBERehd, Barcelona, Spain
| | - Wenyi Gu
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
| | - Michael Kuhn
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Malte Janz
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Marisa I Keller
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Anthony Fullam
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Laura Altepeter
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Victoria T Mücke
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Fabian Finkelmeier
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Katharina M Schwarzkopf
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Carla Cremonese
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Peter-Merton Hunyady
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Myriam W Heilani
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Frank Erhard Uschner
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
| | - Robert Schierwagen
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
| | - Maximilian J Brol
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
| | - Julia Fischer
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
| | - Sabine Klein
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
| | - Kai-Henrik Peiffer
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
| | - Michael Hogardt
- Institute of Medical Microbiology and Infection Control, Goethe University Frankfurt, Germany University Center for Infectious Diseases, University Hospital Frankfurt, Frankfurt, Germany
- University Center of Competence for Infection Control, State of Hesse, Germany
| | - Saeed Shoaie
- Centre for Host-Microbiome Interactions, Dental Institute, King's College London, London, UK
- Science for Life Laboratory, KTH-Royal Institute of Technology, Stockholm, Sweden
| | - Minneke J Coenraad
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jörg Bojunga
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Vicente Arroyo
- European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain
| | - Stefan Zeuzem
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Volkhard A J Kempf
- Institute of Medical Microbiology and Infection Control, Goethe University Frankfurt, Germany University Center for Infectious Diseases, University Hospital Frankfurt, Frankfurt, Germany
- University Center of Competence for Infection Control, State of Hesse, Germany
| | - Christoph Welsch
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Wim Laleman
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
- Department of Gastroenterology & Hepatology, Section of Liver and Biliopancreatic Disorders, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Peer Bork
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Javier Fernandez
- Liver ICU, Liver Unit, Hospital Clinic, University of Barcelona, IDIBAPS and CIBERehd, Barcelona, Spain
- European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain
| | - Jonel Trebicka
- Medical Clinic 1, University Hospital, Goethe-University Frankfurt, Frankfurt am Main, Germany
- Department of Internal Medicine B, Muenster University Clinic, University of Münster, Münster, Germany
- European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain
| |
Collapse
|
6
|
Bartimoccia S, Praktiknjo M, Nocella C, Schierwagen R, Cammisotto V, Jansen C, Cristiano L, Castellani V, Chang J, Carnevale R, Maiucci S, Uschner FE, Pignatelli P, Brol MJ, Trebicka J, Violi F. Association between endotoxemia and blood no in the portal circulation of cirrhotic patients: results of a pilot study. Intern Emerg Med 2024; 19:713-720. [PMID: 38409619 DOI: 10.1007/s11739-024-03534-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 01/08/2024] [Indexed: 02/28/2024]
Abstract
Pathophysiology of portal vein thrombosis (PVT) in cirrhosis is still not entirely understood. Elevated levels of lipopolysaccharides (LPS) in portal circulation are significantly associated with hypercoagulation, increased platelet activation and endothelial dysfunction. The aim of the study was to investigate if LPS was associated with reduced portal venous flow, the third component of Virchow's triad, and the underlying mechanism. Serum nitrite/nitrate, as a marker of nitric oxide (NO) generation, and LPS were measured in the portal and systemic circulation of 20 patients with cirrhosis undergoing transjugular intrahepatic portosystemic shunt (TIPS) procedure; portal venous flow velocity (PVV) was also measured in each patient and correlated with NO and LPS levels. Serum nitrite/nitrate and LPS were significantly higher in the portal compared to systemic circulation; a significant correlation was found between LPS and serum nitrite/nitrate (R = 0.421; p < 0.01). Median PVV before and after TIPS was 15 cm/s (6-40) and 31 cm/s (14-79), respectively. Correlation analysis of PVV with NO and LPS showed a statistically significant negative correlation of PVV with portal venous NO concentration (R = - 0.576; p = 0.020), but not with LPS. In vitro study with endothelial cells showed that LPS enhanced endothelial NO biosynthesis, which was inhibited by L-NAME, an inhibitor of NO synthase, or TAK-242, an inhibitor of TLR4, the LPS receptor; this effect was accomplished by up-regulation of eNOS and iNOS. The study shows that in cirrhosis, endotoxemia may be responsible for reduced portal venous flow via overgeneration of NO and, therefore, contribute to the development of PVT.
Collapse
Affiliation(s)
- Simona Bartimoccia
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Cristina Nocella
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Vittoria Cammisotto
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Christian Jansen
- Department of Medicine I, University Hospital Bonn, Bonn, Germany
| | | | - Valentina Castellani
- Department of General Surgery and Surgical Speciality, Sapienza University of Rome, Rome, Italy
| | - Johannes Chang
- Department of Medicine I, University Hospital Bonn, Bonn, Germany
| | - Roberto Carnevale
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
- IRCCS Neuromed, Località Camerelle, 86077, Pozzilli, IS, Italy
| | - Sofia Maiucci
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Pasquale Pignatelli
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
- Mediterranea Cardiocentro-Napoli, Via Orazio, 2, 80122, Naples, Italy
| | | | - Jonel Trebicka
- Department of Medicine B, University Hospital Münster, Münster, Germany
- European Foundation for the Study of Chronic Liver Failure, EF Clif, Barcelona, Spain
| | - Francesco Violi
- Department of Clinical Internal, Anaesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
- IRCCS Neuromed, Località Camerelle, 86077, Pozzilli, IS, Italy.
| |
Collapse
|
7
|
Claessen H, Narres M, Heier M, Kvitkina T, Linkohr B, Wolff G, Roden M, Icks A, Peters A. Sex-specific trends in incidence of first myocardial infarction among people with and without diabetes between 1985 and 2016 in a German region. Cardiovasc Diabetol 2024; 23:110. [PMID: 38555466 PMCID: PMC10981819 DOI: 10.1186/s12933-024-02179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 02/26/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND The reduction of myocardial infarction (MI) and narrowing the gap between the populations with and without diabetes are important goals of diabetes care. We analyzed time trends for sex-specific incidence rates (IR) of first MI (both non-fatal MI and fatal MI) as well as separately for first non-fatal MI and fatal MI in the population with and without diabetes. METHODS Using data from the KORA myocardial infarction registry (Augsburg, Germany), we estimated age-adjusted IR in people with and without diabetes, corresponding relative risks (RR), and time trends from 1985 to 2016 using Poisson regression. RESULTS There were 19,683 people with first MI (34% fatal MI, 71% men, 30% with diabetes) between 1985 and 2016. In the entire study population, the IR of first MI decreased from 359 (95% CI: 345-374) to 236 (226-245) per 100,000 person years. In men with diabetes, IR decreased only in 2013-2016. This was due to first non-fatal MI, where IR in men with diabetes increased until 2009-2012, and slightly decreased in 2013-2016. Overall, fatal MI declined stronger than first non-fatal MI corresponding to IRs. The RR of first MI substantially increased among men from 1.40 (1.22-1.61) in 1985-1988 to 2.60 (2.26-2.99) in 1997-2000 and moderately decreased in 2013-2016: RR: 1.75 (1.47-2.09). Among women no consistent time trend for RR was observed. Time trends for RR were similar regarding first non-fatal MI and fatal MI. CONCLUSIONS Over the study period, we found a decreased incidence of first MI and fatal MI in the entire study population. The initial increase of first non-fatal MI in men with diabetes needs further research. The gap between populations with and without diabetes remained.
Collapse
Affiliation(s)
- Heiner Claessen
- Institute for Health Services Research and Health Economics, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Auf´m Hennekamp 65, 40225, Düsseldorf, Germany.
- Institute for Health Services Research and Health Economics, Center for Health and Society, Faculty of Medicine, Heinrich Heine University, Düsseldorf, Germany.
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany.
| | - Maria Narres
- Institute for Health Services Research and Health Economics, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Auf´m Hennekamp 65, 40225, Düsseldorf, Germany
- Institute for Health Services Research and Health Economics, Center for Health and Society, Faculty of Medicine, Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Margit Heier
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- KORA Study Centre, University Hospital, Augsburg, Germany
| | - Tatjana Kvitkina
- Institute for Health Services Research and Health Economics, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Auf´m Hennekamp 65, 40225, Düsseldorf, Germany
- Institute for Health Services Research and Health Economics, Center for Health and Society, Faculty of Medicine, Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Birgit Linkohr
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Georg Wolff
- Clinic of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty of the Heinrich, Heine University, Düsseldorf, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, University Hospital, Düsseldorf, Germany
- Institute for Clinical Diabetology, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, German Diabetes Center, Düsseldorf, Germany
| | - Andrea Icks
- Institute for Health Services Research and Health Economics, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Auf´m Hennekamp 65, 40225, Düsseldorf, Germany
- Institute for Health Services Research and Health Economics, Center for Health and Society, Faculty of Medicine, Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Annette Peters
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Neuherberg, Germany
- Chair of Epidemiology, Institute for Medical Information Processing, Biometry and Epidemiology, Medical Faculty, Ludwig-Maximilians-Universität München, Munich, Germany
- DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| |
Collapse
|
8
|
Suárez I, Rauschning D, Schüller C, Hagemeier A, Stecher M, Lehmann C, Schommers P, Schlabe S, Vehreschild JJ, Koll C, Schwarze-Zander C, Wasmuth JC, Klingmüller A, Rockstroh JK, Fätkenheuer G, Boesecke C, Rybniker J. Incidence and risk factors for HIV-tuberculosis coinfection in the Cologne-Bonn region: a retrospective cohort study. Infection 2024:10.1007/s15010-024-02215-y. [PMID: 38492196 DOI: 10.1007/s15010-024-02215-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 02/13/2024] [Indexed: 03/18/2024]
Abstract
PURPOSE The risk of developing active tuberculosis (TB) is considerably increased in people living with HIV/AIDS (PLWH). However, incidence of HIV/TB coinfection is difficult to assess as surveillance data are lacking in many countries. Here, we aimed to perform a quantitative analysis of HIV/TB coinfections within the Cologne/Bonn HIV cohort and to determine risk factors for active TB. METHODS We systematically evaluated data of patients with HIV/TB coinfection between 2006 and 2017. In this retrospective analysis, we compared HIV/TB-coinfected patients with a cohort of HIV-positive patients. The incidence density rate (IDR) was calculated for active TB cases at different time points. RESULTS During 2006-2017, 60 out of 4673 PLWH were diagnosed with active TB. Overall IDR was 0.181 cases/100 patient-years and ranged from 0.266 in 2006-2009 to 0.133 in 2014-2017. Patients originating from Sub-Saharan Africa had a significantly (p < 0.001) higher IDR (0.694/100 patient-years of observation, 95% CI [0.435-1.050]) in comparison to patients of German origin (0.053/100 patient-years of observation, 95% CI [0.028-0.091]). In terms of TB-free survival, individuals originating from countries with a TB incidence higher than 10/100,000 exhibited a markedly reduced TB-free survival compared to those originating from regions with lower incidence (p < 0.001). In 22 patients, TB and HIV infection were diagnosed simultaneously. CONCLUSION Overall, we observed a decline in the incidence density rate (IDR) of HIV/TB coinfections between 2006 and 2017. Patients originating from regions with high incidence bear a higher risk of falling ill with active TB. For PLWH born in Germany, the observed risk of active TB appears to be lower compared to other groups within the cohort. These findings should be considered when developing TB containment and screening strategies for PLWH in low-incidence countries.
Collapse
Affiliation(s)
- Isabelle Suárez
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
| | - Dominic Rauschning
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
- Department IB of Internal Medicine, Bundeswehrzentralkrankenhaus Koblenz, Koblenz, Germany
| | - Cora Schüller
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Anna Hagemeier
- Medical Faculty and University Hospital Cologne, Institute of Medical Statistics and Computational Biology, University of Cologne, Cologne, Germany
| | - Melanie Stecher
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
| | - Clara Lehmann
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Philipp Schommers
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Stefan Schlabe
- Department of Medicine I, University Hospital Bonn, Bonn, Germany
| | - Jörg-Janne Vehreschild
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
- Medical Department 2 (Hematology/Oncology and Infectious Diseases), Center for Internal Medicine, University Hospital, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Carolin Koll
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Carolynne Schwarze-Zander
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
- Department of Medicine I, University Hospital Bonn, Bonn, Germany
- Gemeinschaftspraxis am Kaiserplatz, Bonn, Germany
| | - Jan-Christian Wasmuth
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
- Department of Medicine I, University Hospital Bonn, Bonn, Germany
| | - Angela Klingmüller
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Jürgen Kurt Rockstroh
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
- Department of Medicine I, University Hospital Bonn, Bonn, Germany
| | - Gerd Fätkenheuer
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
| | - Christoph Boesecke
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany
- Department of Medicine I, University Hospital Bonn, Bonn, Germany
| | - Jan Rybniker
- Department I of Internal Medicine, Medical Faculty and University Hospital of Cologne, University of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne/Bonn, Germany.
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.
| |
Collapse
|
9
|
Wucherpfennig L, Wuennemann F, Eichinger M, Schmitt N, Seitz A, Baumann I, Roehmel JF, Stahl M, Hämmerling S, Chung J, Schenk JP, Alrajab A, Kauczor HU, Mall MA, Wielpütz MO, Sommerburg O. Magnetic Resonance Imaging of Pulmonary and Paranasal Sinus Abnormalities in Children with Primary Ciliary Dyskinesia Compared to Children with Cystic Fibrosis. Ann Am Thorac Soc 2024; 21:438-448. [PMID: 38206973 DOI: 10.1513/annalsats.202305-453oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 01/11/2024] [Indexed: 01/13/2024] Open
Abstract
Rationale: Primary ciliary dyskinesia (PCD) and cystic fibrosis (CF) are characterized by inherited impaired mucociliary clearance leading to chronic progressive lung disease as well as chronic rhinosinusitis (CRS). The diseases share morphological and functional commonalities on magnetic resonance imaging (MRI) of the lungs and paranasal sinuses, but comparative MRI studies are lacking. Objectives: To determine whether PCD shows different associations of pulmonary and paranasal sinus abnormalities on MRI and lung function test results in children (infants to adolescents) compared with children with CF. Methods: Eighteen children with PCD (median age, 9.5 [IQR, 3.4-12.7] yr; range, 0-18 yr) and 36 age-matched CF transmembrane conductance regulator modulator-naive children with CF (median age, 9.4 [3.4-13.2] yr; range, 0-18 yr) underwent same-session chest and paranasal sinus MRI as well as spirometry (to determine forced expiratory volume in 1 s percent predicted) and multiple-breath washout (to determine lung clearance index z-score). Pulmonary and paranasal sinus abnormalities were assessed using previously validated chest MRI and CRS-MRI scoring systems. Results: Mean chest MRI global score was similar in children with PCD and CF (15.0 [13.5-20.8] vs. 15.0 [9.0-15.0]; P = 0.601). Consolidations were more prevalent and severe in children with PCD (56% vs. 25% and 1.0 [0.0-2.8] vs. 0.0 [0.0-0.3], respectively; P < 0.05). The chest MRI global score correlated moderately with forced expiratory volume in 1 second percent predicted in children with PCD and children with CF (r = -0.523 and -0.687; P < 0.01) and with lung clearance index in children with CF (r = 0.650; P < 0.001) but not in PCD (r = 0.353; P = 0.196). CRS-MRI sum score and mucopyocele subscore were lower in children with PCD than in children with CF (27.5 [26.3-32.0] vs. 37.0 [37.8-40.0] and 2.0 [0.0-2.0] vs. 7.5 [4.8-9.0], respectively; P < 0.01). CRS-MRI sum score did not correlate with chest MRI score in PCD (r = 0.075-0.157; P = 0.557-0.788) but correlated moderately with MRI morphology score in CF (r = 0.437; P < 0.01). Conclusions: MRI detects differences in lung and paranasal sinus abnormalities between children with PCD and those with CF. Lung disease does not correlate with CRS in PCD but correlates in CF.
Collapse
Affiliation(s)
- Lena Wucherpfennig
- Department of Diagnostic and Interventional Radiology
- Department of Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
| | - Felix Wuennemann
- Department of Diagnostic and Interventional Radiology
- Department of Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
- Department of Diagnostic and Interventional Radiology and Neuroradiology, Helios Dr. Horst-Schmidt-Kliniken Wiesbaden, Wiesbaden, Germany
| | - Monika Eichinger
- Department of Diagnostic and Interventional Radiology
- Department of Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
| | | | | | - Ingo Baumann
- Department of Otorhinolaryngology, Head and Neck Surgery, and
| | - Jobst F Roehmel
- Department of Pediatric Respiratory Medicine, Immunology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Lung Research associated partner site, Berlin, Germany; and
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Mirjam Stahl
- Department of Pediatric Respiratory Medicine, Immunology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Lung Research associated partner site, Berlin, Germany; and
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Susanne Hämmerling
- Division of Pediatric Pulmonology and Allergy and Cystic Fibrosis Center, Department of Pediatrics III, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
| | - Jaehi Chung
- Division of Pediatric Pulmonology and Allergy and Cystic Fibrosis Center, Department of Pediatrics III, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
| | | | | | - Hans-Ulrich Kauczor
- Department of Diagnostic and Interventional Radiology
- Department of Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
| | - Marcus A Mall
- Department of Otorhinolaryngology, Head and Neck Surgery, and
- Department of Pediatric Respiratory Medicine, Immunology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Center for Lung Research associated partner site, Berlin, Germany; and
| | - Mark O Wielpütz
- Department of Diagnostic and Interventional Radiology
- Department of Diagnostic and Interventional Radiology with Nuclear Medicine, Thoraxklinik
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
| | - Olaf Sommerburg
- Division of Pediatric Pulmonology and Allergy and Cystic Fibrosis Center, Department of Pediatrics III, University Hospital Heidelberg, Heidelberg, Germany
- Translational Lung Research Center Heidelberg, German Center for Lung Research, Heidelberg, Germany
| |
Collapse
|
10
|
Machts R, Schindler M, Unterhauser-Chwastek H, Mertens J, Faust K. Pin penetration depths in the neurocranium using a three-pin head fixation device. Sci Rep 2024; 14:4726. [PMID: 38413760 PMCID: PMC10899659 DOI: 10.1038/s41598-024-55227-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 02/21/2024] [Indexed: 02/29/2024] Open
Abstract
In estimated 10-15% of neurosurgical interventions employing a conventional three-pin head fixation device (HFD) the patient's head loses position due to slippage. At present no scientifically based stability criterion exists to potentially prevent the intraoperative loss of head position or skull fractures. Here, data on the skull penetration depth both on the single and two-pin side of a three-pin HFD are presented, providing scientific evidence for a stability criterion for the invasive three-pin head fixation. Eight fresh, chemically untreated human cadaveric heads were sequentially pinned 90 times in total in a noncommercially calibrated clamp screw applying a predefined force of 270 N (approximately 60 lbf) throughout. Three head positions were pinned each in standardized manner for the following approaches: prone, middle fossa, pterional. Titanium-aluminum alloy pins were used, varying the pin-cone angle on the single-pin side from 36° to 55° and on the two-pin side from 25° to 36°. The bone-penetration depths were directly measured by a dial gauge on neurocranium. The penetration depths on the single-pin side ranged from 0.00 mm (i.e., no penetration) to 6.17 mm. The penetration depths on the two-pin side ranged from 0.00 mm (no penetration) to 4.48 mm. We measured a significantly higher penetration depth for the anterior pin in comparison to the posterior pin on the two-pin side in prone position. One pin configuration (50°/25°) resulted in a quasi-homogenous pin depth distribution between the single- and the two-pin side. Emanating from the physical principle that pin depths behave proportionate to pin pressure distribution, a quasi-homogenous pin penetration depth may result in higher resilience against external shear forces or torque, thus reducing potential complications such as slippage and depressed skull fractures. The authors propose that the pin configuration of 50°/25° may be superior to the currently used uniform pin-cone angle distribution in common clinical practice (36°/36°). However, future research may identify additional influencing factors to improve head fixation stability.
Collapse
Affiliation(s)
- René Machts
- Pro Med Instruments GmbH, Part of Black Forest Medical Group, 79111, Freiburg, Germany.
| | - Martina Schindler
- Pro Med Instruments GmbH, Part of Black Forest Medical Group, 79111, Freiburg, Germany
| | | | - Jan Mertens
- Pro Med Instruments GmbH, Part of Black Forest Medical Group, 79111, Freiburg, Germany
| | - Katharina Faust
- Department of Neurosurgery, Charité University Medicine, 10117, Berlin, Germany
| |
Collapse
|
11
|
Ou AH, Rosenthal SB, Adli M, Akiyama K, Akula N, Alda M, Amare AT, Ardau R, Arias B, Aubry JM, Backlund L, Bauer M, Baune BT, Bellivier F, Benabarre A, Bengesser S, Bhattacharjee AK, Biernacka JM, Cervantes P, Chen GB, Chen HC, Chillotti C, Cichon S, Clark SR, Colom F, Cousins DA, Cruceanu C, Czerski PM, Dantas CR, Dayer A, Del Zompo M, Degenhardt F, DePaulo JR, Étain B, Falkai P, Fellendorf FT, Ferensztajn-Rochowiak E, Forstner AJ, Frisén L, Frye MA, Fullerton JM, Gard S, Garnham JS, Goes FS, Grigoroiu-Serbanescu M, Grof P, Gruber O, Hashimoto R, Hauser J, Heilbronner U, Herms S, Hoffmann P, Hofmann A, Hou L, Jamain S, Jiménez E, Kahn JP, Kassem L, Kato T, Kittel-Schneider S, König B, Kuo PH, Kusumi I, Lackner N, Laje G, Landén M, Lavebratt C, Leboyer M, Leckband SG, Jaramillo CAL, MacQueen G, Maj M, Manchia M, Marie-Claire C, Martinsson L, Mattheisen M, McCarthy MJ, McElroy SL, McMahon FJ, Mitchell PB, Mitjans M, Mondimore FM, Monteleone P, Nievergelt CM, Nöthen MM, Novák T, Ösby U, Ozaki N, Papiol S, Perlis RH, Pisanu C, Potash JB, Pfennig A, Reich-Erkelenz D, Reif A, Reininghaus EZ, Rietschel M, Rouleau GA, Rybakowski JK, Schalling M, Schofield PR, Schubert KO, Schulze TG, Schweizer BW, Seemüller F, Severino G, Shekhtman T, Shilling PD, Shimoda K, Simhandl C, Slaney CM, Squassina A, Stamm T, Stopkova P, Tighe SK, Tortorella A, Turecki G, Vieta E, Volkert J, Witt S, Wray NR, Wright A, Young LT, Zandi PP, Kelsoe JR. Lithium response in bipolar disorder is associated with focal adhesion and PI3K-Akt networks: a multi-omics replication study. Transl Psychiatry 2024; 14:109. [PMID: 38395906 PMCID: PMC10891068 DOI: 10.1038/s41398-024-02811-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 12/06/2023] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Lithium is the gold standard treatment for bipolar disorder (BD). However, its mechanism of action is incompletely understood, and prediction of treatment outcomes is limited. In our previous multi-omics study of the Pharmacogenomics of Bipolar Disorder (PGBD) sample combining transcriptomic and genomic data, we found that focal adhesion, the extracellular matrix (ECM), and PI3K-Akt signaling networks were associated with response to lithium. In this study, we replicated the results of our previous study using network propagation methods in a genome-wide association study of an independent sample of 2039 patients from the International Consortium on Lithium Genetics (ConLiGen) study. We identified functional enrichment in focal adhesion and PI3K-Akt pathways, but we did not find an association with the ECM pathway. Our results suggest that deficits in the neuronal growth cone and PI3K-Akt signaling, but not in ECM proteins, may influence response to lithium in BD.
Collapse
Affiliation(s)
- Anna H Ou
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Sara B Rosenthal
- Center for Computational Biology and Bioinformatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Mazda Adli
- Department of Psychiatry and Psychotherapy, Charité- Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
- Fliedner Klinik Berlin, Center for Psychiatry, Psychotherapy and Psychosomatic Medicine, Berlin, Germany
| | - Kazufumi Akiyama
- Department of Biological Psychiatry and Neuroscience, Dokkyo Medical University School of Medicine, Mibu, Japan
| | - Nirmala Akula
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, US Department of Health & Human Services, Bethesda, MD, USA
| | - Martin Alda
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
- National Institute of Mental Health, Klecany, Czech Republic
| | - Azmeraw T Amare
- Discipline of Psychiatry, University of Adelaide, Adelaide, SA, Australia
| | - Raffaella Ardau
- Unit of Clinical Pharmacology, Hospital University Agency of Cagliari, Cagliari, Italy
| | - Bárbara Arias
- Department of Evolutive Biology, Ecology and Environmental Sciences, Facultat de Biologia and Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Spain
- CIBER de Salud Mental, ISCIII, Madrid, Barcelona, Catalonia, Spain
| | - Jean-Michel Aubry
- Department of Mental Health and Psychiatry, Mood Disorders Unit-Geneva University Hospitals, Geneva, Switzerland
| | - Lena Backlund
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Michael Bauer
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Medical Faculty, Technische Universität Dresden, Dresden, Germany
| | - Bernhard T Baune
- Discipline of Psychiatry, University of Adelaide, Adelaide, SA, Australia
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Frank Bellivier
- INSERM UMR-S 1144-Université Paris Cité Département de Psychiatrie et de Médecine Addictologique, AP-HP, Groupe Hospitalier Lariboisière-F Widal, Paris, France
| | - Antonio Benabarre
- Bipolar and Depressive Disorders Unit, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, ISCIII, Barcelona, Catalonia, Spain
| | - Susanne Bengesser
- Neurobiological Background and Anthropometrics in Bipolar Affective Disorder, Division of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz, Austria
| | | | - Joanna M Biernacka
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
| | - Pablo Cervantes
- The Neuromodulation Unit, McGill University Health Centre, Montreal, QC, Canada
| | - Guo-Bo Chen
- The Neuromodulation Unit, McGill University Health Centre, Montreal, QC, Canada
| | - Hsi-Chung Chen
- Department of Psychiatry & Center of Sleep Disorders, National Taiwan University Hospital, Taipei, Taiwan
| | - Caterina Chillotti
- Unit of Clinical Pharmacology, Hospital University Agency of Cagliari, Cagliari, Italy
| | - Sven Cichon
- Institute of Human Genetics, University of Bonn and Department of Genomics, Life & Brain Center, Bonn, Germany
- Human Genomics Research Group, Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Scott R Clark
- Discipline of Psychiatry, University of Adelaide, Adelaide, SA, Australia
| | - Francesc Colom
- Bipolar and Depressive Disorders Unit, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, ISCIII, Barcelona, Catalonia, Spain
| | - David A Cousins
- Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Cristiana Cruceanu
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada
| | - Piotr M Czerski
- Psychiatric Genetic Unit, Poznan University of Medical Sciences, Poznan, Poland
| | - Clarissa R Dantas
- Department of Psychiatry, University of Campinas (Unicamp), Campinas, Brazil
| | - Alexandre Dayer
- Department of Mental Health and Psychiatry, Mood Disorders Unit-Geneva University Hospitals, Geneva, Switzerland
| | - Maria Del Zompo
- Unit of Clinical Pharmacology, Hospital University Agency of Cagliari, Cagliari, Italy
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Franziska Degenhardt
- Institute of Human Genetics, University of Bonn and Department of Genomics, Life & Brain Center, Bonn, Germany
| | - J Raymond DePaulo
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Bruno Étain
- INSERM UMR-S 1144-Université Paris Cité Département de Psychiatrie et de Médecine Addictologique, AP-HP, Groupe Hospitalier Lariboisière-F Widal, Paris, France
| | - Peter Falkai
- Institute of Psychiatric Phenomics and Genomics (IPPG) and Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Frederike Tabea Fellendorf
- Neurobiological Background and Anthropometrics in Bipolar Affective Disorder, Division of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz, Austria
| | | | - Andreas J Forstner
- Institute of Human Genetics, University of Bonn and Department of Genomics, Life & Brain Center, Bonn, Germany
| | - Louise Frisén
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
- Child and Adolescent Psychiatry Research Center, Stockholm, Sweden
| | - Mark A Frye
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
| | - Janice M Fullerton
- Mental Illness Research Theme, Neuroscience Research Australia, Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Sébastien Gard
- Pôle de Psychiatrie Générale Universitaire, Centre Hospitalier Charles Perrens, Bordeaux, France
| | - Julie S Garnham
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | - Fernando S Goes
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Maria Grigoroiu-Serbanescu
- Biometric Psychiatric Genetics Research Unit, Alexandru Obregia Psychiatric Hospital, Bucharest, Romania
| | - Paul Grof
- Mood Disorders Center of Ottawa, Ottawa, ON, Canada
| | - Oliver Gruber
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August University Göttingen, Göttingen, Germany
| | - Ryota Hashimoto
- Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Joanna Hauser
- Psychiatric Genetic Unit, Poznan University of Medical Sciences, Poznan, Poland
| | - Urs Heilbronner
- Institute of Psychiatric Phenomics and Genomics (IPPG) and Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Stefan Herms
- Institute of Human Genetics, University of Bonn and Department of Genomics, Life & Brain Center, Bonn, Germany
- Human Genomics Research Group, Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Per Hoffmann
- Institute of Human Genetics, University of Bonn and Department of Genomics, Life & Brain Center, Bonn, Germany
- Human Genomics Research Group, Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Andrea Hofmann
- Institute of Human Genetics, University of Bonn and Department of Genomics, Life & Brain Center, Bonn, Germany
| | - Liping Hou
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, US Department of Health & Human Services, Bethesda, MD, USA
| | | | - Esther Jiménez
- Bipolar and Depressive Disorders Unit, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, ISCIII, Barcelona, Catalonia, Spain
| | - Jean-Pierre Kahn
- Service de Psychiatrie et Psychologie Clinique, Centre Psychothérapique de Nancy-Laxou-Université de Lorraine, Nancy, France
| | - Layla Kassem
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, US Department of Health & Human Services, Bethesda, MD, USA
| | - Tadafumi Kato
- Laboratory for Molecular Dynamics of Mental Disorders, RIKEN Brain Science Institute, Saitama, Japan
| | - Sarah Kittel-Schneider
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, Frankfurt am Main, Germany
| | - Barbara König
- Department of Psychiatry and Psychotherapeutic Medicine, Landesklinikum Neunkirchen, Neunkirchen, Austria
| | - Po-Hsiu Kuo
- Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Ichiro Kusumi
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Nina Lackner
- Neurobiological Background and Anthropometrics in Bipolar Affective Disorder, Division of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz, Austria
| | - Gonzalo Laje
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, US Department of Health & Human Services, Bethesda, MD, USA
| | - Mikael Landén
- Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the Gothenburg University, Gothenburg, Sweden
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Catharina Lavebratt
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Marion Leboyer
- Assistance Publique-Hôpitaux de Paris, Hôpital Albert Chenevier-Henri Mondor, Pôle de Psychiatrie, Créteil, France
| | - Susan G Leckband
- Department of Pharmacy, VA San Diego Healthcare System, La Jolla, CA, USA
| | | | - Glenda MacQueen
- Department of Psychiatry, University of Calgary, Calgary, AB, Canada
| | - Mario Maj
- Department of Psychiatry, University of Naples SUN, Naples, Italy
| | - Mirko Manchia
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
- Department of Pharmacology, Dalhousie University, Halifax, NS, Canada
| | - Cynthia Marie-Claire
- INSERM UMR-S 1144-Université Paris Cité Département de Psychiatrie et de Médecine Addictologique, AP-HP, Groupe Hospitalier Lariboisière-F Widal, Paris, France
| | - Lina Martinsson
- Department of Clinical Neurosciences, Karolinska Institutet, Stockholm, Sweden
| | | | - Michael J McCarthy
- Department of Psychiatry, VA San Diego Healthcare System, La Jolla, CA, USA
| | - Susan L McElroy
- Department of Psychiatry, Lindner Center of Hope, University of Cincinnati, Mason, OH, USA
| | - Francis J McMahon
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, US Department of Health & Human Services, Bethesda, MD, USA
| | - Philip B Mitchell
- School of Psychiatry, University of New South Wales, and Black Dog Institute, Sydney, NSW, Australia
| | - Marina Mitjans
- Department of Genetics, Microbiology, and Statistics, Faculty of Biology and Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, CIBER de Salud Mental, ISCIII, Madrid, Spain
| | - Francis M Mondimore
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Palmiero Monteleone
- Neurosciences Section, Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | | | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn and Department of Genomics, Life & Brain Center, Bonn, Germany
| | - Tomas Novák
- National Institute of Mental Health, Klecany, Czech Republic
| | - Urban Ösby
- Department of Neurobiology, Care Sciences, and Society, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sergi Papiol
- Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Roy H Perlis
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Claudia Pisanu
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - James B Potash
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Andrea Pfennig
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Medical Faculty, Technische Universität Dresden, Dresden, Germany
| | - Daniela Reich-Erkelenz
- Institute of Psychiatric Phenomics and Genomics (IPPG) and Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Andreas Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, Frankfurt am Main, Germany
| | - Eva Z Reininghaus
- Neurobiological Background and Anthropometrics in Bipolar Affective Disorder, Division of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz, Austria
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Guy A Rouleau
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Janusz K Rybakowski
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Martin Schalling
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Peter R Schofield
- Mental Illness Research Theme, Neuroscience Research Australia, Sydney, NSW, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - K Oliver Schubert
- Discipline of Psychiatry, University of Adelaide, Adelaide, SA, Australia
| | - Thomas G Schulze
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, US Department of Health & Human Services, Bethesda, MD, USA
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
- Institute of Psychiatric Phenomics and Genomics (IPPG) and Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University of Munich, Munich, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August University Göttingen, Göttingen, Germany
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Barbara W Schweizer
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Florian Seemüller
- Institute of Psychiatric Phenomics and Genomics (IPPG) and Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Giovanni Severino
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Tatyana Shekhtman
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
- Veterans Administration, San Diego Healthcare System, San Diego, CA, USA
| | - Paul D Shilling
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Kazutaka Shimoda
- Department of Psychiatry, Dokkyo Medical University School of Medicine, Mibu, Japan
| | | | - Claire M Slaney
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | - Alessio Squassina
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Thomas Stamm
- Department of Psychiatry and Psychotherapy, Charité- Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - Pavla Stopkova
- National Institute of Mental Health, Klecany, Czech Republic
| | - Sarah K Tighe
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA
- University of Iowa Carver College of Medicine and University of Iowa College of Public Health, VA Quality Scholars Program, Iowa City VA Hospital, Iowa City, IA, USA
| | | | - Gustavo Turecki
- Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada
| | - Eduard Vieta
- Bipolar and Depressive Disorders Unit, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, ISCIII, Barcelona, Catalonia, Spain
| | - Julia Volkert
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt-Goethe University, Frankfurt am Main, Germany
| | - Stephanie Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Naomi R Wray
- The University of Queensland, Queensland Brain Institute, Brisbane, QLD, Australia
| | - Adam Wright
- School of Psychiatry, University of New South Wales, and Black Dog Institute, Sydney, NSW, Australia
| | - L Trevor Young
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Peter P Zandi
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - John R Kelsoe
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.
- Veterans Administration, San Diego Healthcare System, San Diego, CA, USA.
| |
Collapse
|
12
|
Schniewind I, Besso MJ, Klicker S, Schwarz FM, Hadiwikarta WW, Richter S, Löck S, Linge A, Krause M, Dubrovska A, Baumann M, Kurth I, Peitzsch C. Epigenetic Targeting to Overcome Radioresistance in Head and Neck Cancer. Cancers (Basel) 2024; 16:730. [PMID: 38398123 PMCID: PMC10886471 DOI: 10.3390/cancers16040730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 02/25/2024] Open
Abstract
(1) Background: The sensitivity of head and neck squamous cell carcinoma (HNSCC) to ionizing radiation, among others, is determined by the number of cells with high clonogenic potential and stem-like features. These cellular characteristics are dynamically regulated in response to treatment and may lead to an enrichment of radioresistant cells with a cancer stem cell (CSC) phenotype. Epigenetic mechanisms, particularly DNA and histone methylation, are key regulators of gene-specific transcription and cellular plasticity. Therefore, we hypothesized that specific epigenetic targeting may prevent irradiation-induced plasticity and may sensitize HNSCC cells to radiotherapy. (2) Methods: We compared the DNA methylome and intracellular concentrations of tricarboxylic acid cycle metabolites in radioresistant FaDu and Cal33 cell lines with their parental controls, as well as aldehyde dehydrogenase (ALDH)-positive CSCs with negative controls. Moreover, we conducted a screen of a chemical library targeting enzymes involved in epigenetic regulation in combination with irradiation and analyzed the clonogenic potential, sphere formation, and DNA repair capacity to identify compounds with both radiosensitizing and CSC-targeting potential. (3) Results: We identified the histone demethylase inhibitor GSK-J1, which targets UTX (KDM6A) and JMJD3 (KDM6B), leading to increased H3K27 trimethylation, heterochromatin formation, and gene silencing. The clonogenic survival assay after siRNA-mediated knock-down of both genes radiosensitized Cal33 and SAS cell lines. Moreover, high KDM6A expression in tissue sections of patients with HNSCC was associated with improved locoregional control after primary (n = 137) and post-operative (n = 187) radio/chemotherapy. Conversely, high KDM6B expression was a prognostic factor for reduced overall survival. (4) Conclusions: Within this study, we investigated cellular and molecular mechanisms underlying irradiation-induced cellular plasticity, a key inducer of radioresistance, with a focus on epigenetic alterations. We identified UTX (KDM6A) as a putative prognostic and therapeutic target for HNSCC patients treated with radiotherapy.
Collapse
Affiliation(s)
- Iñaki Schniewind
- National Center for Tumor Diseases (NCT), Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany; (I.S.)
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- Department of Neurology, Carl Gustav Carus University Hospital, Dresden University of Technology, 01307 Dresden, Germany
| | - Maria José Besso
- German Cancer Research Center (DKFZ), Division Radiooncology/Radiobiology, 69120 Heidelberg, Germany
| | - Sebastian Klicker
- National Center for Tumor Diseases (NCT), Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany; (I.S.)
| | - Franziska Maria Schwarz
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany
- Institute of Radiooncology—OncoRay, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01307 Dresden, Germany
| | - Wahyu Wijaya Hadiwikarta
- German Cancer Research Center (DKFZ), Division Radiooncology/Radiobiology, 69120 Heidelberg, Germany
| | - Susan Richter
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany
| | - Steffen Löck
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- Department of Radiation Oncology, University Hospital Carl Gustav Carus, 01307 Dresden, Germany
| | - Annett Linge
- National Center for Tumor Diseases (NCT), Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany; (I.S.)
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany
- Department of Radiation Oncology, University Hospital Carl Gustav Carus, 01307 Dresden, Germany
| | - Mechthild Krause
- National Center for Tumor Diseases (NCT), Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany; (I.S.)
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany
- Institute of Radiooncology—OncoRay, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01307 Dresden, Germany
- Department of Radiation Oncology, University Hospital Carl Gustav Carus, 01307 Dresden, Germany
| | - Anna Dubrovska
- National Center for Tumor Diseases (NCT), Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany; (I.S.)
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany
- Institute of Radiooncology—OncoRay, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01307 Dresden, Germany
| | - Michael Baumann
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- German Cancer Research Center (DKFZ), Division Radiooncology/Radiobiology, 69120 Heidelberg, Germany
| | - Ina Kurth
- German Cancer Research Center (DKFZ), Division Radiooncology/Radiobiology, 69120 Heidelberg, Germany
| | - Claudia Peitzsch
- National Center for Tumor Diseases (NCT), Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, 01307 Dresden, Germany; (I.S.)
- OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology and Helmholtz-Zentrum Dresden-Rossendorf, 01307 Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Dresden University of Technology, 01307 Dresden, Germany
| |
Collapse
|
13
|
Rezaeva BR, Rutten T, Bollmann C, Ortleb S, Melzer M, Kumlehn J. Plant Regeneration via Adventitious Shoot Formation from Immature Zygotic Embryo Explants of Camelina. Plants (Basel) 2024; 13:465. [PMID: 38498454 PMCID: PMC10892543 DOI: 10.3390/plants13040465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/31/2024] [Accepted: 02/03/2024] [Indexed: 03/20/2024]
Abstract
Camelina is an oil seed crop that is enjoying increasing interest because it has a particularly valuable fatty acid profile, is modest regarding its water and nutrient requirements, and is comparatively resilient to abiotic and biotic stress factors. The regeneration of plants from cells accessible to genetic manipulation is an essential prerequisite for the generation of genetically engineered plants, be it by transgenesis or genome editing. Here, immature embryos were used on the assumption that their incomplete differentiation was associated with totipotency. In culture, regenerative structures appeared adventitiously at the embryos' hypocotyls. For this, the application of auxin- or cytokinin-type growth regulators was essential. The formation of regenerative structures was most efficient when indole-3-acetic acid was added to the induction medium at 1 mg/L, zygotic embryos of the medium walking stick stage were used, and their hypocotyls were stimulated by pricking to a wound response. Histological examinations revealed that the formation of adventitious shoots was initiated by locally activated cell division and proliferation in the epidermis and the outer cortex of the hypocotyl. While the regeneration of plants was established in principle using the experimental line Cam139, the method proved to be similarly applicable to the current cultivar Ligena, and hence it constitutes a vital basis for future genetic engineering approaches.
Collapse
Affiliation(s)
- Barno Ruzimurodovna Rezaeva
- Plant Reproductive Biology, Leibniz Institute for Plant Genetics and Crop Plant Research (IPK), 06466 Seeland, Germany; (B.R.R.); (C.B.)
| | - Twan Rutten
- Structural Cell Biology, Leibniz Institute for Plant Genetics and Crop Plant Research (IPK), 06466 Seeland, Germany; (T.R.); (M.M.)
| | - Carola Bollmann
- Plant Reproductive Biology, Leibniz Institute for Plant Genetics and Crop Plant Research (IPK), 06466 Seeland, Germany; (B.R.R.); (C.B.)
| | - Stefan Ortleb
- Assimilate Allocation and NMR, Leibniz Institute for Plant Genetics and Crop Plant Research (IPK), 06466 Seeland, Germany;
| | - Michael Melzer
- Structural Cell Biology, Leibniz Institute for Plant Genetics and Crop Plant Research (IPK), 06466 Seeland, Germany; (T.R.); (M.M.)
| | - Jochen Kumlehn
- Plant Reproductive Biology, Leibniz Institute for Plant Genetics and Crop Plant Research (IPK), 06466 Seeland, Germany; (B.R.R.); (C.B.)
| |
Collapse
|
14
|
Lysakovski P, Kopp B, Tessonnier T, Mein S, Ferrari A, Haberer T, Debus J, Mairani A. Development and validation of MonteRay, a fast Monte Carlo dose engine for carbon ion beam radiotherapy. Med Phys 2024; 51:1433-1449. [PMID: 37748042 DOI: 10.1002/mp.16754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/25/2023] [Accepted: 09/11/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Monte Carlo (MC) simulations are considered the gold-standard for accuracy in radiotherapy dose calculation; so far however, no commercial treatment planning system (TPS) provides a fast MC for supporting clinical practice in carbon ion therapy. PURPOSE To extend and validate the in-house developed fast MC dose engine MonteRay for carbon ion therapy, including physical and biological dose calculation. METHODS MonteRay is a CPU MC dose calculation engine written in C++ that is capable of simulating therapeutic proton, helium and carbon ion beams. In this work, development steps taken to include carbon ions in MonteRay are presented. Dose distributions computed with MonteRay are evaluated using a comprehensive validation dataset, including various measurements (pristine Bragg peaks, spread out Bragg peaks in water and behind an anthropomorphic phantom) and simulations of a patient plan. The latter includes both physical and biological dose comparisons. Runtimes of MonteRay were evaluated against those of FLUKA MC on a standard benchmark problem. RESULTS Dosimetric comparisons between MonteRay and measurements demonstrated good agreement. In terms of pristine Bragg peaks, mean errors between simulated and measured integral depth dose distributions were between -2.3% and +2.7%. Comparing SOBPs at 5, 12.5 and 20 cm depth, mean absolute relative dose differences were 0.9%, 0.7% and 1.6% respectively. Comparison against measurements behind an anthropomorphic head phantom revealed mean absolute dose differences of1.2 % ± 1.1 % $1.2\% \pm 1.1\;\%$ with global 3%/3 mm 3D-γ passing rates of 99.3%, comparable to those previously reached with FLUKA (98.9%). Comparisons against dose predictions computed with the clinical treatment planning tool RayStation 11B for a meningioma patient plan revealed excellent local 1%/1 mm 3D-γ passing rates of 98% for physical and 94% for biological dose. In terms of runtime, MonteRay achieved speedups against reference FLUKA simulations ranging from 14× to 72×, depending on the beam's energy and the step size chosen. CONCLUSIONS Validations against clinical dosimetric measurements in homogeneous and heterogeneous scenarios and clinical TPS calculations have proven the validity of the physical models implemented in MonteRay. To conclude, MonteRay is viable as a fast secondary MC engine for supporting clinical practice in proton, helium and carbon ion radiotherapy.
Collapse
Affiliation(s)
- Peter Lysakovski
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Faculty of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Benedikt Kopp
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Thomas Tessonnier
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stewart Mein
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Division of Molecular and Translational Radiation Oncology, Heidelberg Faculty of Medicine (MFHD) and Department of Radiation Oncology, Heidelberg University Hospital (UKHD), Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), National Center for Radiation Oncology (NCRO), Heidelberg University Hospital (UKHD), Heidelberg Faculty of Medicine (MFHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Alfredo Ferrari
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Thomas Haberer
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Jürgen Debus
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), National Center for Radiation Oncology (NCRO), Heidelberg University Hospital (UKHD), Heidelberg Faculty of Medicine (MFHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology, German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Department of Radiation Oncology, Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Andrea Mairani
- Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Medical Physics, National Centre of Oncological Hadrontherapy (CNAO), Pavia, Italy
| |
Collapse
|
15
|
Lozano YM, Dueñas JF, Zordick C, Rillig MC. Microplastic fibres affect soil fungal communities depending on drought conditions with consequences for ecosystem functions. Environ Microbiol 2024; 26:e16549. [PMID: 38196372 DOI: 10.1111/1462-2920.16549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 11/22/2023] [Indexed: 01/11/2024]
Abstract
Microplastics affect soil functions depending on drought conditions. However, how their combined effect influences soil fungi and their linkages with ecosystem functions is still unknown. To address this, we used rhizosphere soil from a previous experiment in which we employed microplastic fibres addition and drought in a factorial design, and evaluated their effects on soil fungal communities. Microplastics decreased soil fungal richness under well-watered conditions, likely linked to microplastics leaching toxic substances into the soil, and microplastic effects on root fineness. Under drought, by contrast, microplastics increased pathogen and total fungal richness, likely related to microplastic positive effects on soil properties, such as water holding capacity, porosity or aggregation. Soil fungal richness was the attribute most affected by microplastics and drought. Microplastics altered the relationships between soil fungi and ecosystem functions to the point that many of them flipped from positive to negative or disappeared. The combined effect of microplastics and drought on fungal richness mitigated their individual negative effect (antagonism), suggesting that changes in soil water conditions may alter the action mode of microplastics in soil. Microplastic leaching of harmful substances can be mitigated under drought, while the improvement of soil properties by microplastics may alleviate such drought conditions.
Collapse
Affiliation(s)
- Y M Lozano
- Freie Universität Berlin, Institute of Biology, Plant Ecology, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - J F Dueñas
- Freie Universität Berlin, Institute of Biology, Plant Ecology, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - C Zordick
- Freie Universität Berlin, Institute of Biology, Plant Ecology, Berlin, Germany
| | - M C Rillig
- Freie Universität Berlin, Institute of Biology, Plant Ecology, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| |
Collapse
|
16
|
Bauswein M, Knoll G, Schmidt B, Gessner A, Hemmer B, Flaskamp M. No evidence of an association of multiple sclerosis (MS) with Borna disease virus 1 (BoDV-1) infections in patients within an endemic region: a retrospective pilot study. Infection 2024; 52:243-247. [PMID: 37814203 PMCID: PMC10810949 DOI: 10.1007/s15010-023-02099-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/12/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Borna disease virus 1 (BoDV-1) causes rare human infections within endemic regions in southern and eastern Germany. The infections reported to date have been linked to severe courses of encephalitis with high mortality and mostly irreversible symptoms. Whether BoDV-1 could act as a trigger for other neurological conditions, is, however, incompletely understood. OBJECTIVES AND METHODS In this study, we addressed the question of whether the presentation of a clinically isolated syndrome (CIS) or of multiple sclerosis (MS) might be associated with a milder course of BoDV-1 infections. Serum samples of 100 patients with CIS or MS diagnosed at a tertiary neurological care center within an endemic region in southern Germany and of 50 control patients suffering from headache were retrospectively tested for BoDV-1 infections. RESULTS In none of the tested sera, confirmed positive results of anti-BoDV-1-IgG antibodies were retrieved. Our results support the conclusion that human BoDV-1 infections primarily lead to severe encephalitis with high mortality.
Collapse
Affiliation(s)
- Markus Bauswein
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany.
| | - Gertrud Knoll
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - Barbara Schmidt
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - André Gessner
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - Bernhard Hemmer
- Department of Neurology, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Martina Flaskamp
- Department of Neurology, School of Medicine, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany
| |
Collapse
|
17
|
Tkotz K, Liebert A, Gast LV, Zeiger P, Uder M, Zaiss M, Nagel AM. Multi-echo-based fat artifact correction for CEST MRI at 7 T. Magn Reson Med 2024; 91:481-496. [PMID: 37753844 DOI: 10.1002/mrm.29863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 07/28/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023]
Abstract
PURPOSE CEST MRI is influenced by fat signal, which can reduce the apparent CEST contrast or lead to pseudo-CEST effects. Our goal was to develop a fat artifact correction based on multi-echo fat-water separation that functions stably for 7 T knee MRI data. METHODS Our proposed algorithm utilizes the full complex data and a phase demodulation with an off-resonance map estimation based on the Z-spectra prior to fat-water separation to achieve stable fat artifact correction. Our method was validated and compared to multi-echo-based methods originally proposed for 3 T by Bloch-McConnell simulations and phantom measurements. Moreover, the method was applied to in vivo 7 T knee MRI examinations and compared to Gaussian fat saturation and a published single-echo Z-spectrum-based fat artifact correction method. RESULTS Phase demodulation prior to fat-water separation reduced the occurrence of fat-water swaps. Utilizing the complex signal data led to more stable correction results than working with magnitude data, as was proposed for 3 T. Our approach reduced pseudo-nuclear Overhauser effects compared to the other correction methods. Thus, the mean asymmetry contrast at 3.5 ppm in cartilage over five volunteers increased from -9.2% (uncorrected) and -10.6% (Z-spectrum-based) to -1.5%. Results showed higher spatial stability than with the fat saturation pulse. CONCLUSION Our work demonstrates the feasibility of multi-echo-based fat-water separation with an adaptive fat model for fat artifact correction for CEST MRI at 7 T. Our approach provided better fat artifact correction throughout the entire spectrum and image than the fat saturation pulse or Z-spectrum-based correction method for both phantom and knee imaging results.
Collapse
Affiliation(s)
- Katharina Tkotz
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Andrzej Liebert
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Lena V Gast
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Paula Zeiger
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Michael Uder
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Moritz Zaiss
- Department of Neuroradiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Armin M Nagel
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| |
Collapse
|
18
|
Spieker EL, Dvorani A, Salchow-Hömmen C, Otto C, Ruprecht K, Wenger N, Schauer T. Targeting Transcutaneous Spinal Cord Stimulation Using a Supervised Machine Learning Approach Based on Mechanomyography. Sensors (Basel) 2024; 24:634. [PMID: 38276326 PMCID: PMC10818383 DOI: 10.3390/s24020634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Transcutaneous spinal cord stimulation (tSCS) provides a promising therapy option for individuals with injured spinal cords and multiple sclerosis patients with spasticity and gait deficits. Before the therapy, the examiner determines a suitable electrode position and stimulation current for a controlled application. For that, amplitude characteristics of posterior root muscle (PRM) responses in the electromyography (EMG) of the legs to double pulses are examined. This laborious procedure holds potential for simplification due to time-consuming skin preparation, sensor placement, and required expert knowledge. Here, we investigate mechanomyography (MMG) that employs accelerometers instead of EMGs to assess muscle activity. A supervised machine-learning classification approach was implemented to classify the acceleration data into no activity and muscular/reflex responses, considering the EMG responses as ground truth. The acceleration-based calibration procedure achieved a mean accuracy of up to 87% relative to the classical EMG approach as ground truth on a combined cohort of 11 healthy subjects and 11 patients. Based on this classification, the identified current amplitude for the tSCS therapy was in 85%, comparable to the EMG-based ground truth. In healthy subjects, where both therapy current and position have been identified, 91% of the outcome matched well with the EMG approach. We conclude that MMG has the potential to make the tuning of tSCS feasible in clinical practice and even in home use.
Collapse
Affiliation(s)
- Eira Lotta Spieker
- Department of Neurology, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (E.L.S.); (C.S.-H.); (C.O.); (K.R.); (N.W.)
- Control Systems Group, Technische Universität Berlin, Einsteinufer 17, 10587 Berlin, Germany;
- SensorStim Neurotechnology GmbH, c/o TU Berlin, Einsteinufer 17, 10587 Berlin, Germany
| | - Ardit Dvorani
- Control Systems Group, Technische Universität Berlin, Einsteinufer 17, 10587 Berlin, Germany;
- SensorStim Neurotechnology GmbH, c/o TU Berlin, Einsteinufer 17, 10587 Berlin, Germany
| | - Christina Salchow-Hömmen
- Department of Neurology, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (E.L.S.); (C.S.-H.); (C.O.); (K.R.); (N.W.)
| | - Carolin Otto
- Department of Neurology, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (E.L.S.); (C.S.-H.); (C.O.); (K.R.); (N.W.)
| | - Klemens Ruprecht
- Department of Neurology, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (E.L.S.); (C.S.-H.); (C.O.); (K.R.); (N.W.)
| | - Nikolaus Wenger
- Department of Neurology, Charité–Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany; (E.L.S.); (C.S.-H.); (C.O.); (K.R.); (N.W.)
| | - Thomas Schauer
- Control Systems Group, Technische Universität Berlin, Einsteinufer 17, 10587 Berlin, Germany;
- SensorStim Neurotechnology GmbH, c/o TU Berlin, Einsteinufer 17, 10587 Berlin, Germany
| |
Collapse
|
19
|
Godfrey LK, Forster J, Liffers ST, Schröder C, Köster J, Henschel L, Ludwig KU, Lähnemann D, Trajkovic-Arsic M, Behrens D, Scarpa A, Lawlor RT, Witzke KE, Sitek B, Johnsen SA, Rahmann S, Horsthemke B, Zeschnigk M, Siveke JT. Pancreatic cancer acquires resistance to MAPK pathway inhibition by clonal expansion and adaptive DNA hypermethylation. Clin Epigenetics 2024; 16:13. [PMID: 38229153 PMCID: PMC10792938 DOI: 10.1186/s13148-024-01623-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/03/2024] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with poor prognosis. It is marked by extraordinary resistance to conventional therapies including chemotherapy and radiation, as well as to essentially all targeted therapies evaluated so far. More than 90% of PDAC cases harbor an activating KRAS mutation. As the most common KRAS variants in PDAC remain undruggable so far, it seemed promising to inhibit a downstream target in the MAPK pathway such as MEK1/2, but up to now preclinical and clinical evaluation of MEK inhibitors (MEKi) failed due to inherent and acquired resistance mechanisms. To gain insights into molecular changes during the formation of resistance to oncogenic MAPK pathway inhibition, we utilized short-term passaged primary tumor cells from ten PDACs of genetically engineered mice. We followed gain and loss of resistance upon MEKi exposure and withdrawal by longitudinal integrative analysis of whole genome sequencing, whole genome bisulfite sequencing, RNA-sequencing and mass spectrometry data. RESULTS We found that resistant cell populations under increasing MEKi treatment evolved by the expansion of a single clone but were not a direct consequence of known resistance-conferring mutations. Rather, resistant cells showed adaptive DNA hypermethylation of 209 and hypomethylation of 8 genomic sites, most of which overlap with regulatory elements known to be active in murine PDAC cells. Both DNA methylation changes and MEKi resistance were transient and reversible upon drug withdrawal. Furthermore, MEKi resistance could be reversed by DNA methyltransferase inhibition with remarkable sensitivity exclusively in the resistant cells. CONCLUSION Overall, the concept of acquired therapy resistance as a result of the expansion of a single cell clone with epigenetic plasticity sheds light on genetic, epigenetic and phenotypic patterns during evolvement of treatment resistance in a tumor with high adaptive capabilities and provides potential for reversion through epigenetic targeting.
Collapse
Affiliation(s)
- Laura K Godfrey
- Bridge Institute of Experimental Tumor Therapy (BIT) and Division of Solid Tumor Translational Oncology (DKTK), West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium (DKTK), partner site Essen, a partnership between German Cancer Research Center (DKFZ) and University Hospital Essen, Heidelberg, Germany
| | - Jan Forster
- German Cancer Consortium (DKTK), partner site Essen, a partnership between German Cancer Research Center (DKFZ) and University Hospital Essen, Heidelberg, Germany
- Genome Informatics, Institute of Human Genetics, University Duisburg-Essen, Essen, Germany
| | - Sven-Thorsten Liffers
- Bridge Institute of Experimental Tumor Therapy (BIT) and Division of Solid Tumor Translational Oncology (DKTK), West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium (DKTK), partner site Essen, a partnership between German Cancer Research Center (DKFZ) and University Hospital Essen, Heidelberg, Germany
| | - Christopher Schröder
- Genome Informatics, Institute of Human Genetics, University Duisburg-Essen, Essen, Germany
| | - Johannes Köster
- Bioinformatics and Computational Oncology, Institute for Artificial Intelligence in Medicine, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Leonie Henschel
- Institute of Human Genetics, School of Medicine & University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Kerstin U Ludwig
- Institute of Human Genetics, School of Medicine & University Hospital Bonn, University of Bonn, Bonn, Germany
| | - David Lähnemann
- German Cancer Consortium (DKTK), partner site Essen, a partnership between German Cancer Research Center (DKFZ) and University Hospital Essen, Heidelberg, Germany
| | - Marija Trajkovic-Arsic
- Bridge Institute of Experimental Tumor Therapy (BIT) and Division of Solid Tumor Translational Oncology (DKTK), West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- German Cancer Consortium (DKTK), partner site Essen, a partnership between German Cancer Research Center (DKFZ) and University Hospital Essen, Heidelberg, Germany
| | - Diana Behrens
- EPO Experimental Pharmacology and Oncology GmbH, Berlin-Buch, Germany
| | - Aldo Scarpa
- Department of Diagnostics and Public Health, Pathological Anatomy Section, University and Hospital Trust of Verona, Verona, Italy
- ARC-Net Cancer Research Centre, University and Hospital Trust of Verona, Verona, Italy
| | - Rita T Lawlor
- ARC-Net Cancer Research Centre, University and Hospital Trust of Verona, Verona, Italy
| | - Kathrin E Witzke
- Medizinisches Proteom-Center/Zentrum Für Protein-Diagnostik, Ruhr-Universität Bochum, Bochum, Germany
| | - Barbara Sitek
- Medizinisches Proteom-Center/Zentrum Für Protein-Diagnostik, Ruhr-Universität Bochum, Bochum, Germany
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Steven A Johnsen
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
| | - Sven Rahmann
- Algorithmic Bioinformatics, Center for Bioinformatics Saar and Saarland University, Saarland Informatics Campus, Saarbrücken, Germany
| | - Bernhard Horsthemke
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Michael Zeschnigk
- German Cancer Consortium (DKTK), partner site Essen, a partnership between German Cancer Research Center (DKFZ) and University Hospital Essen, Heidelberg, Germany
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Jens T Siveke
- Bridge Institute of Experimental Tumor Therapy (BIT) and Division of Solid Tumor Translational Oncology (DKTK), West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
- German Cancer Consortium (DKTK), partner site Essen, a partnership between German Cancer Research Center (DKFZ) and University Hospital Essen, Heidelberg, Germany.
- National Center for Tumor Diseases (NCT) West, Campus Essen, Essen, Germany.
| |
Collapse
|
20
|
Rotsch C, Kemter-Esser K, Dohndorf J, Knothe M, Drossel WG, Heyde CE. Feasibility of a Shape-Memory-Alloy-Actuator System for Modular Acetabular Cups. Bioengineering (Basel) 2024; 11:75. [PMID: 38247952 PMCID: PMC10813518 DOI: 10.3390/bioengineering11010075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/29/2023] [Accepted: 01/05/2024] [Indexed: 01/23/2024] Open
Abstract
Hip implants have a modular structure which enables patient-specific adaptation but also revision of worn or damaged friction partners without compromising the implant-bone connection. To reduce complications during the extraction of ceramic inlays, this work presents a new approach of a shape-memory-alloy-actuator which enables the loosening of ceramic inlays from acetabular hip cups without ceramic chipping or damaging the metal cup. This technical in vitro study exam-ines two principles of heating currents and hot water for thermal activation of the shape-memory-alloy-actuator to generate a force between the metal cup and the ceramic inlay. Mechanical tests concerning push-in and push-out forces, deformation of the acetabular cup according to international test standards, and force generated by the actuator were generated to prove the feasibility of this new approach to ceramic inlay revision. The required disassembly force for a modular acetabular device achieved an average value of 602 N after static and 713 N after cyclic loading. The actuator can provide a push-out force up to 1951 N. In addition, it is shown that the necessary modifications to the implant modules for the implementation of the shape-memory-actuator-system do not result in any change in the mechanical properties compared to conventional systems.
Collapse
Affiliation(s)
- Christian Rotsch
- Fraunhofer Institute for Machine Tools and Forming Technology IWU, 01187 Dresden, Germany; (K.K.-E.); (J.D.); (W.-G.D.)
- University of Leipzig Medical Center, Orthopaedic, Trauma and Plastic Surgery Clinic, University of Leipzig, 04103 Leipzig, Germany;
| | - Karoline Kemter-Esser
- Fraunhofer Institute for Machine Tools and Forming Technology IWU, 01187 Dresden, Germany; (K.K.-E.); (J.D.); (W.-G.D.)
| | - Johanna Dohndorf
- Fraunhofer Institute for Machine Tools and Forming Technology IWU, 01187 Dresden, Germany; (K.K.-E.); (J.D.); (W.-G.D.)
- Institute of Biomedical Engineering, TUD Dresden University of Technology, 01307 Dresden, Germany
| | - Marcel Knothe
- IMA Materialforschung und Anwendungstechnik GmbH, 01099 Dresden, Germany;
| | - Welf-Guntram Drossel
- Fraunhofer Institute for Machine Tools and Forming Technology IWU, 01187 Dresden, Germany; (K.K.-E.); (J.D.); (W.-G.D.)
- Professorship Adaptronics and Lightweight Design in Production, Chemnitz University of Technology, 09107 Chemnitz, Germany
| | - Christoph-Eckhard Heyde
- University of Leipzig Medical Center, Orthopaedic, Trauma and Plastic Surgery Clinic, University of Leipzig, 04103 Leipzig, Germany;
| |
Collapse
|
21
|
Schuler R, Langer A, Marquardt C, Kalev G, Meisinger M, Bandura J, Schiedeck T, Goos M, Vette A, Konschake M. Automatic muscle impedance and nerve analyzer (AMINA) as a novel approach for classifying bioimpedance signals in intraoperative pelvic neuromonitoring. Sci Rep 2024; 14:654. [PMID: 38182695 PMCID: PMC10770322 DOI: 10.1038/s41598-023-50504-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 12/20/2023] [Indexed: 01/07/2024] Open
Abstract
Frequent complications arising from low anterior resections include urinary and fecal incontinence, as well as sexual disorders, which are commonly associated with damage to the pelvic autonomic nerves during surgery. To assist the surgeon in preserving pelvic autonomic nerves, a novel approach for intraoperative pelvic neuromonitoring was investigated that is based on impedance measurements of the innervated organs. The objective of this work was to develop an algorithm called AMINA to classify the bioimpedance signals, with the goal of facilitating signal interpretation for the surgeon. Thirty patients included in a clinical investigation underwent nerve-preserving robotic rectal surgery using intraoperative pelvic neuromonitoring. Contraction of the urinary bladder and/or rectum, triggered by direct stimulation of the innervating nerves, resulted in a change in tissue impedance signal, allowing the nerves to be identified and preserved. Impedance signal characteristics in the time domain and the time-frequency domain were calculated and classified to develop the AMINA. Stimulation-induced positive impedance changes were statistically significantly different from negative stimulation responses by the percent amplitude of impedance change Amax in the time domain. Positive impedance changes and artifacts were distinguished by classifying wavelet scales resulting from peak detection in the continuous wavelet transform scalogram, which allowed implementation of a decision tree underlying the AMINA. The sensitivity of the software-based signal evaluation by the AMINA was 96.3%, whereas its specificity was 91.2%. This approach streamlines and automates the interpretation of impedance signals during intraoperative pelvic neuromonitoring.
Collapse
Affiliation(s)
- Ramona Schuler
- Research and Development, Dr. Langer Medical GmbH, Waldkirch, Germany
- Institute of Biomedical Engineering and Informatics, TU Ilmenau, Ilmenau, Germany
| | - Andreas Langer
- Research and Development, Dr. Langer Medical GmbH, Waldkirch, Germany
- Dr. Langer Consulting GbR, Langefurt 12, Waldkirch, Germany
| | - Christoph Marquardt
- Department of General, Visceral, Thoracic and Pediatric Surgery, Ludwigsburg Hospital, Ludwigsburg, Germany
| | - Georgi Kalev
- Department of General, Visceral, Thoracic and Pediatric Surgery, Ludwigsburg Hospital, Ludwigsburg, Germany
| | | | - Julia Bandura
- Research and Development, Dr. Langer Medical GmbH, Waldkirch, Germany
| | | | - Matthias Goos
- Department of General and Visceral Surgery, Helios Klinik Müllheim, Müllheim, Germany
| | - Albert Vette
- Department of Mechanical Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada
- Glenrose Rehabilitation Hospital, Alberta Health Services, Edmonton, AB, T5G 0B7, Canada
| | - Marko Konschake
- Department of Anatomy, Histology and Embryology, Institute of Clinical and Functional Anatomy, Medical University of Innsbruck (MUI), Müllerstr. 59, 6020, Innsbruck, Austria.
| |
Collapse
|
22
|
Ramírez M, Arend JM, von Gablenz P, Liesefeld HR, Pörschmann C. Toward Sound Localization Testing in Virtual Reality to Aid in the Screening of Auditory Processing Disorders. Trends Hear 2024; 28:23312165241235463. [PMID: 38425297 PMCID: PMC10908240 DOI: 10.1177/23312165241235463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 03/02/2024] Open
Abstract
Sound localization testing is key for comprehensive hearing evaluations, particularly in cases of suspected auditory processing disorders. However, sound localization is not commonly assessed in clinical practice, likely due to the complexity and size of conventional measurement systems, which require semicircular loudspeaker arrays in large and acoustically treated rooms. To address this issue, we investigated the feasibility of testing sound localization in virtual reality (VR). Previous research has shown that virtualization can lead to an increase in localization blur. To measure these effects, we conducted a study with a group of normal-hearing adults, comparing sound localization performance in different augmented reality and VR scenarios. We started with a conventional loudspeaker-based measurement setup and gradually moved to a virtual audiovisual environment, testing sound localization in each scenario using a within-participant design. The loudspeaker-based experiment yielded results comparable to those reported in the literature, and the results of the virtual localization test provided new insights into localization performance in state-of-the-art VR environments. By comparing localization performance between the loudspeaker-based and virtual conditions, we were able to estimate the increase in localization blur induced by virtualization relative to a conventional test setup. Notably, our study provides the first proxy normative cutoff values for sound localization testing in VR. As an outlook, we discuss the potential of a VR-based sound localization test as a suitable, accessible, and portable alternative to conventional setups and how it could serve as a time- and resource-saving prescreening tool to avoid unnecessarily extensive and complex laboratory testing.
Collapse
Affiliation(s)
- Melissa Ramírez
- Institute of Computer and Communication Technology, TH Köln University of Applied Sciences, Cologne, Germany
- Audio Communication Group, Technische Universität Berlin, Berlin, Germany
| | - Johannes M. Arend
- Audio Communication Group, Technische Universität Berlin, Berlin, Germany
| | - Petra von Gablenz
- Institute of Hearing Technology and Audiology, Jade University of Applied Sciences and Cluster of Excellence ‘Hearing4all’, Oldenburg, Germany
| | | | - Christoph Pörschmann
- Institute of Computer and Communication Technology, TH Köln University of Applied Sciences, Cologne, Germany
| |
Collapse
|
23
|
Roell L, Keeser D, Papazov B, Lembeck M, Papazova I, Greska D, Muenz S, Schneider-Axmann T, Sykorova EB, Thieme CE, Vogel BO, Mohnke S, Huppertz C, Roeh A, Keller-Varady K, Malchow B, Stoecklein S, Ertl-Wagner B, Henkel K, Wolfarth B, Tantchik W, Walter H, Hirjak D, Schmitt A, Hasan A, Meyer-Lindenberg A, Falkai P, Maurus I. Effects of Exercise on Structural and Functional Brain Patterns in Schizophrenia-Data From a Multicenter Randomized-Controlled Study. Schizophr Bull 2024; 50:145-156. [PMID: 37597507 PMCID: PMC10754172 DOI: 10.1093/schbul/sbad113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/21/2023]
Abstract
BACKGROUND AND HYPOTHESIS Aerobic exercise interventions in people with schizophrenia have been demonstrated to improve clinical outcomes, but findings regarding the underlying neural mechanisms are limited and mainly focus on the hippocampal formation. Therefore, we conducted a global exploratory analysis of structural and functional neural adaptations after exercise and explored their clinical implications. STUDY DESIGN In this randomized controlled trial, structural and functional MRI data were available for 91 patients with schizophrenia who performed either aerobic exercise on a bicycle ergometer or underwent a flexibility, strengthening, and balance training as control group. We analyzed clinical and neuroimaging data before and after 6 months of regular exercise. Bayesian linear mixed models and Bayesian logistic regressions were calculated to evaluate effects of exercise on multiple neural outcomes and their potential clinical relevance. STUDY RESULTS Our results indicated that aerobic exercise in people with schizophrenia led to structural and functional adaptations mainly within the default-mode network, the cortico-striato-pallido-thalamo-cortical loop, and the cerebello-thalamo-cortical pathway. We further observed that volume increases in the right posterior cingulate gyrus as a central node of the default-mode network were linked to improvements in disorder severity. CONCLUSIONS These exploratory findings suggest a positive impact of aerobic exercise on 3 cerebral networks that are involved in the pathophysiology of schizophrenia. CLINICAL TRIALS REGISTRATION The underlying study of this manuscript was registered in the International Clinical Trials Database, ClinicalTrials.gov (NCT number: NCT03466112, https://clinicaltrials.gov/ct2/show/NCT03466112?term=NCT03466112&draw=2&rank=1) and in the German Clinical Trials Register (DRKS-ID: DRKS00009804).
Collapse
Affiliation(s)
- Lukas Roell
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Neuroimaging Core Unit Munich (NICUM), University Hospital, LMU Munich, Munich, Germany
| | - Daniel Keeser
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Neuroimaging Core Unit Munich (NICUM), University Hospital, LMU Munich, Munich, Germany
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Boris Papazov
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Moritz Lembeck
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Irina Papazova
- Department of Psychiatry, Psychotherapy and Psychosomatics of the University Augsburg, Medical Faculty, University of Augsburg, Bezirkskrankenhaus Augsburg, Augsburg, Germany
| | - David Greska
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Susanne Muenz
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Thomas Schneider-Axmann
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Eliska B Sykorova
- Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Germany
| | - Christina E Thieme
- Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Germany
| | - Bob O Vogel
- Department of Psychiatry and Psychotherapy, University Hospital Charité Berlin, Berlin, Germany
| | - Sebastian Mohnke
- Department of Psychiatry and Psychotherapy, University Hospital Charité Berlin, Berlin, Germany
| | - Charlotte Huppertz
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
| | - Astrid Roeh
- Department of Psychiatry, Psychotherapy and Psychosomatics of the University Augsburg, Medical Faculty, University of Augsburg, Bezirkskrankenhaus Augsburg, Augsburg, Germany
| | - Katriona Keller-Varady
- Hannover Medical School, Department of Rehabilitation and Sports Medicine, Hannover, Germany
| | - Berend Malchow
- Department of Psychiatry and Psychotherapy, University Hospital Göttingen, Göttingen, Germany
| | - Sophia Stoecklein
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
| | - Birgit Ertl-Wagner
- Department of Radiology, University Hospital, LMU Munich, Munich, Germany
- Division of Neuroradiology, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Karsten Henkel
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
| | - Bernd Wolfarth
- Department of Sports Medicine, University Hospital Charité Berlin, Berlin, Germany
| | - Wladimir Tantchik
- Department of Psychiatry and Psychotherapy, University Hospital Charité Berlin, Berlin, Germany
| | - Henrik Walter
- Department of Psychiatry and Psychotherapy, University Hospital Charité Berlin, Berlin, Germany
| | - Dusan Hirjak
- Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Germany
| | - Andrea Schmitt
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Laboratory of Neuroscience (LIM27), Institute of Psychiatry, University of Sao Paulo, São Paulo, Brazil
| | - Alkomiet Hasan
- Department of Psychiatry, Psychotherapy and Psychosomatics of the University Augsburg, Medical Faculty, University of Augsburg, Bezirkskrankenhaus Augsburg, Augsburg, Germany
| | | | - Peter Falkai
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Max Planck Institute of Psychiatry, Munich, Germany
| | - Isabel Maurus
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| |
Collapse
|
24
|
Swaidan A, Azakir B, Neugart S, Kattour N, Sokhn ES, Osaili TM, Darra NE. Evaluation of the Phenolic Composition and Biological Activities of Six Aqueous Date ( Phoenix dactylifera L.) Seed Extracts Originating from Different Countries: A Comparative Analysis. Foods 2023; 13:126. [PMID: 38201154 PMCID: PMC10778786 DOI: 10.3390/foods13010126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/26/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Date seeds, which are the main by-products of date fruit consumption, were shown to possess promising biological activities and health benefits with minimal human use. The present investigation analyzed and compared the phenolic content of six date seed varieties from four different origins (Khudari, Sakai, and Safawi from Saudi Arabia, Majdool from Jordan, Zahdi from Iraq, and Kabkab from Iran). The aqueous extracts were examined for possible antioxidant, antibacterial, and anti-tumor potential. Date seed oil was extracted, and fatty acid profiles were compared. The results revealed that date seeds are a rich source of polyphenols, which have been linked to biological activities. Furthermore, the phenolic content seemed highly dependent on the variety, where Kabkab had the highest TPC value (271.2 mg GAE/g DM) while Majdool had the lowest value (63.2 mg GAE/g DM). Antioxidant activities of all varieties were highly correlated with the total phenolic content. The antibacterial investigation demonstrated that the Sakai variety possessed the dominant activity, whereas Majdool showed no activity. The results further indicated the sensitivity of both Staphylococcus aureus and Bacillus cereus, with a stronger effect against B. cereus, while no effect was observed against Gram-negative strains (Salmonella Typhi and Escherichia coli). All varieties were able to decrease colon and lung cancer cell viability, especially Khudari and Sakai, with stronger effects against colon cancer cells. Analysis of date seed oil showed high oleic acid content, especially in Sakai. The findings suggest that date seeds are promising candidates for future pharmaceutical applications as nutraceuticals to help combat certain illnesses, as well as functional foods and natural additives that boost the nutritional value of food products, increase their shelf lives, and improve the overall health of consumers.
Collapse
Affiliation(s)
- Aseel Swaidan
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Beirut Arab University, Tarik El Jedidah, Riad El Solh, P.O. Box 115020, Beirut 1107 2809, Lebanon;
| | - Bilal Azakir
- Molecular and Translational Medicine Laboratory, Faculty of Medicine, Beirut Arab University, Beirut 1107 2809, Lebanon;
| | - Susanne Neugart
- Division of Quality and Sensory of Plant Products, Department of Crop Sciences, Georg-August-Universität Göttingen, 37073 Göttingen, Germany
| | - Naim Kattour
- Department of Biology, Faculty of Arts and Sciences, University of Balamand, P.O. Box 100, Tripoli 1100 2807, Lebanon
| | - Elie Salem Sokhn
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut 1107 2809, Lebanon;
| | - Tareq M. Osaili
- Department of Clinical Nutrition and Dietetics, College of Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Nada El Darra
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Beirut Arab University, Tarik El Jedidah, Riad El Solh, P.O. Box 115020, Beirut 1107 2809, Lebanon;
| |
Collapse
|
25
|
Waldmann T, Schaible J, Stiawa M, Becker T, Wegscheider K, Adema B, Wiegand-Grefe S, Kilian R. The cost-utility of an intervention for children and adolescents with a parent having a mental illness in the framework of the German health and social care system: a health economic evaluation of a randomized controlled trial. Child Adolesc Psychiatry Ment Health 2023; 17:141. [PMID: 38129868 PMCID: PMC10740235 DOI: 10.1186/s13034-023-00693-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Children of families with a parent with a mental illness have an increased risk of developing social and mental health problems resulting in decreased quality of life. Therefore, children and adolescents living in families with a parent with mental illness are regarded as a target group for preventive interventions. To date, only a few economic evaluation studies for interventions directed at preventing the intergenerational transmission of mental health problems exist. In this investigation we estimated the cost utility of an intervention for the support of children and adolescents with a parent having a mental illness from the perspective of the German health and social care system. METHODS We randomly assigned a total of 214 families with 337 children and adolescents to the intervention (INT) group (108/170) or the control (TAU) group (106/167). Families in the intervention group received on average eight intervention sessions (50-90 min) over 6 months. We estimated total cost of illness by means of the Children and Adolescent Mental Health Service Receipt Inventory (CAMHSRI) over 24 months. For the estimation of Quality-Adjusted Live Years (QALYs) we applied the KIDSCREEN-10. For estimating the incremental cost-utility of the intervention compared to treatment as usual we used the net-benefit approach. RESULTS We estimated the annual cost of illness amounting to € 3784.59 (SD € 8581.11) in the TAU group and € 3264.44 (SD € 9431.89) in the INT group. The annual cost difference between INT and TAU was € - 516.14 (SE 1124.95) which was not significant (p ≤ 0.05). We estimated the average QALY to be 0.759 (SD 0.073) in the TAU group and 0.763 (SD 0.072). The QALY difference between INT and TAU was 0.0037 (SE 0.0092) which was not significant (p ≤ 0.05). The incremental cost utility ratio (ICUR) indicated that the gain of one additional year in full health by means of the intervention was associated with the saving of € 139.49. However, the stochastic insecurity of the ICUR did not allow a unique decision about the cost-utility of the intervention. CONCLUSIONS More information on the economic value of the intervention for families with a parent with mental illness in comparison to treatment as usual in Germany is needed. TRIAL REGISTRATION ClinicalTrials.gov, identifier NCT02308462; German Clinical Trials Register: DRKS00006806.
Collapse
Affiliation(s)
- Tamara Waldmann
- Department of Psychiatry and Psychotherapy at BKH Günzburg II, Ulm University, Lindenallee 2, 89312, Günzburg, Germany
| | - Jochen Schaible
- Department of Psychiatry and Psychotherapy at BKH Günzburg II, Ulm University, Lindenallee 2, 89312, Günzburg, Germany
- Abteilung für Psychiatrie und Psychotherapie des Kindes- und Jugendalters, ZfP Südwürttemberg, Ravensburg, Germany
| | - Maja Stiawa
- Department of Psychiatry and Psychotherapy at BKH Günzburg II, Ulm University, Lindenallee 2, 89312, Günzburg, Germany
| | - Thomas Becker
- Department of Psychiatry and Psychotherapy at BKH Günzburg II, Ulm University, Lindenallee 2, 89312, Günzburg, Germany
- Universitätsklinikum Leipzig, Klinik und Poliklinik für Psychiatrie und Psychotherapie, Leipzig, Germany
| | - Karl Wegscheider
- Institute for Medical Biometry and Epidemiology, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Bonnie Adema
- Department for Psychiatry and Psychotherapy, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Silke Wiegand-Grefe
- Department for Psychiatry and Psychotherapy, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Reinhold Kilian
- Department of Psychiatry and Psychotherapy at BKH Günzburg II, Ulm University, Lindenallee 2, 89312, Günzburg, Germany.
| |
Collapse
|
26
|
Schleusener J, Lohan SB, Busch L, Zamudio Díaz DF, Opitz N, Sicher C, Lichtenthäler T, Danker K, Dommerich S, Filler T, Meinke MC, Zwicker P. Irradiation of human oral mucosa by 233 nm far UV-C LEDs for the safe inactivation of nosocomial pathogens. Sci Rep 2023; 13:22391. [PMID: 38104221 PMCID: PMC10725486 DOI: 10.1038/s41598-023-49745-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023] Open
Abstract
The inactivation of multi resistant pathogens is an important clinical need. One approach is UV-C irradiation, which was previously not possible in vivo due to cytotoxicity. Recently, far UV-C irradiation at λ < 240 nm was successfully used on skin with negligible damage. A potential application site is the nasal vestibule, where MRSA accumulates and cannot be treated using antiseptics. We irradiated 3D mucosa models and excised human mucosa with 222 and 233 nm far UV-C in comparison to 254 nm and broadband UV-B. Eradication efficiency was evaluated by counting colony forming units; irritation potential was evaluated by hen's egg-chorioallantoic membrane assay and trans epithelial electrical resistance; cell viability was assessed by MTT. DNA damage and cell protective mechanisms were evaluated immunohistopathologically. On mucosa models, MRSA reduced by ≈ 5 log10 for 60 mJ/cm2 irradiation at 233 nm. A slightly increased cell viability was observed after 24 h. Lower doses showed lower irritation potential than the positive controls or commercial mouthwash, while 80 mJ/cm2 had strong irritation potential. DNA damage occurred only superficially and decreased after 24 h. On excised human mucosa, < 10% of keratinocytes were affected after 150 mJ/cm2 222 nm or 60 mJ/cm2 233 nm.
Collapse
Affiliation(s)
- Johannes Schleusener
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany.
| | - Silke B Lohan
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Loris Busch
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Department of Pharmaceutics and Biopharmaceutics, Philipps-Universität Marburg, Robert‑Koch‑Str. 4, 35032, Marburg, Germany
| | - Daniela F Zamudio Díaz
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Technische Universität Berlin, Institute of Food Technology and Food Chemistry, Gustav-Meyer-Allee 25, 13355, Berlin, Germany
| | - Nevin Opitz
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Ferdinand‑Sauerbruch‑Str., 17475, Greifswald, Germany
| | - Claudia Sicher
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Ferdinand‑Sauerbruch‑Str., 17475, Greifswald, Germany
| | - Tom Lichtenthäler
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Ferdinand‑Sauerbruch‑Str., 17475, Greifswald, Germany
| | - Kerstin Danker
- Institute of Biochemistry, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Steffen Dommerich
- Department of Otorhinolaryngology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Thomas Filler
- Ferdinand-Braun-Institut (FBH), Gustav‑Kirchhoff‑Str. 4, 12489, Berlin, Germany
| | - Martina C Meinke
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Paula Zwicker
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Ferdinand‑Sauerbruch‑Str., 17475, Greifswald, Germany
| |
Collapse
|
27
|
Xu X, Moreno S, Gentzel M, Zhang K, Wang D, Voit B, Appelhans D. Biomimetic Protocells Featuring Macrophage-Like Capture and Digestion of Protein Pathogens. Small Methods 2023; 7:e2300257. [PMID: 37599260 DOI: 10.1002/smtd.202300257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/11/2023] [Indexed: 08/22/2023]
Abstract
Modern medical research develops interest in sophisticated artificial nano- and microdevices for future treatment of human diseases related to biological dysfunctions. This covers the design of protocells capable of mimicking the structure and functionality of eukaryotic cells. The authors use artificial organelles based on trypsin-loaded pH-sensitive polymeric vesicles to provide macrophage-like digestive functions under physiological conditions. Herein, an artificial cell is established where digestive artificial organelles (nanosize) are integrated into a protocell (microsize). With this method, mimicking crossing of different biological barriers, capture of model protein pathogens, and compartmentalized digestive function are possible. This allows the integration of different components (e.g., dextran as stabilizing block) and the diffusion of pathogens in simulated cytosolic environment under physiological conditions. An integrated characterization approach is carried out, with identifying electrospray ionization mass spectrometry as an excellent detection method for the degradation of a small peptide such as β-amyloid. The degradation of model enzymes is measured by enzyme activity assays. This work is an important contribution to effective biomimicry with the design of cell-like functions having potential for therapeutic action.
Collapse
Affiliation(s)
- Xiaoying Xu
- Leibniz-Institut für Polymerforschung Dresden e.V., D-01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062, Dresden, Germany
| | - Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., D-01069, Dresden, Germany
| | - Marc Gentzel
- Center for Molecular and Cellular Bioengineering (CMCB), Core Facility Mass Spectrometry & Proteomics, Technische Universität Dresden, 01307, Dresden, Germany
| | - Kehu Zhang
- Leibniz-Institut für Polymerforschung Dresden e.V., D-01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062, Dresden, Germany
| | - Dishi Wang
- Leibniz-Institut für Polymerforschung Dresden e.V., D-01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062, Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., D-01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062, Dresden, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., D-01069, Dresden, Germany
| |
Collapse
|
28
|
Mikryukov V, Dulya O, Zizka A, Bahram M, Hagh-Doust N, Anslan S, Prylutskyi O, Delgado-Baquerizo M, Maestre FT, Nilsson H, Pärn J, Öpik M, Moora M, Zobel M, Espenberg M, Mander Ü, Khalid AN, Corrales A, Agan A, Vasco-Palacios AM, Saitta A, Rinaldi A, Verbeken A, Sulistyo B, Tamgnoue B, Furneaux B, Duarte Ritter C, Nyamukondiwa C, Sharp C, Marín C, Gohar D, Klavina D, Sharmah D, Dai DQ, Nouhra E, Biersma EM, Rähn E, Cameron E, De Crop E, Otsing E, Davydov E, Albornoz F, Brearley F, Buegger F, Zahn G, Bonito G, Hiiesalu I, Barrio I, Heilmann-Clausen J, Ankuda J, Doležal J, Kupagme J, Maciá-Vicente J, Djeugap Fovo J, Geml J, Alatalo J, Alvarez-Manjarrez J, Põldmaa K, Runnel K, Adamson K, Bråthen KA, Pritsch K, Tchan Issifou K, Armolaitis K, Hyde K, Newsham KK, Panksep K, Lateef AA, Hansson L, Lamit L, Saba M, Tuomi M, Gryzenhout M, Bauters M, Piepenbring M, Wijayawardene NN, Yorou N, Kurina O, Mortimer P, Meidl P, Kohout P, Puusepp R, Drenkhan R, Garibay-Orijel R, Godoy R, Alkahtani S, Rahimlou S, Dudov S, Põlme S, Ghosh S, Mundra S, Ahmed T, Netherway T, Henkel T, Roslin T, Nteziryayo V, Fedosov V, Onipchenko V, Yasanthika WAE, Lim Y, Van Nuland M, Soudzilovskaia N, Antonelli A, Kõljalg U, Abarenkov K, Tedersoo L. Connecting the multiple dimensions of global soil fungal diversity. Sci Adv 2023; 9:eadj8016. [PMID: 38019923 PMCID: PMC10686567 DOI: 10.1126/sciadv.adj8016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023]
Abstract
How the multiple facets of soil fungal diversity vary worldwide remains virtually unknown, hindering the management of this essential species-rich group. By sequencing high-resolution DNA markers in over 4000 topsoil samples from natural and human-altered ecosystems across all continents, we illustrate the distributions and drivers of different levels of taxonomic and phylogenetic diversity of fungi and their ecological groups. We show the impact of precipitation and temperature interactions on local fungal species richness (alpha diversity) across different climates. Our findings reveal how temperature drives fungal compositional turnover (beta diversity) and phylogenetic diversity, linking them with regional species richness (gamma diversity). We integrate fungi into the principles of global biodiversity distribution and present detailed maps for biodiversity conservation and modeling of global ecological processes.
Collapse
Affiliation(s)
- Vladimir Mikryukov
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Olesya Dulya
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Alexander Zizka
- Department of Biology, Philipps-University, Marburg 35032, Germany
| | - Mohammad Bahram
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala 75007, Sweden
| | - Niloufar Hagh-Doust
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Sten Anslan
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Oleh Prylutskyi
- Department of Mycology and Plant Resistance, School of Biology, V.N. Karazin Kharkiv National University, Kharkiv 61022, Ukraine
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistemico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas, Sevilla 41012, Spain
| | - Fernando T. Maestre
- Instituto Multidisciplinar para el Estudio del Medio ‘Ramón Margalef’ and Departamento de Ecología, Universidad de Alicante, Alicante 03690, Spain
| | - Henrik Nilsson
- Gothenburg Global Biodiversity Centre, University of Gothenburg, Gothenburg 40530, Sweden
| | - Jaan Pärn
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Maarja Öpik
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Mari Moora
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Martin Zobel
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Mikk Espenberg
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Ülo Mander
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | | | - Adriana Corrales
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Universidad del Rosario, Bogotá 111221, Colombia
| | - Ahto Agan
- Institute of Forestry and Engineering, Estonian University of Life Sciences, Tartu 51006, Estonia
| | - Aída-M. Vasco-Palacios
- Grupo de BioMicro y Microbiología Ambiental, Escuela de Microbiologia, Universidad de Antioquia UdeA, Medellin 050010, Colombia
| | - Alessandro Saitta
- Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo 90128, Italy
| | - Andrea Rinaldi
- Department of Biomedical Sciences, University of Cagliari, Cagliari 09124, Italy
| | | | - Bobby Sulistyo
- Department Biology, Ghent University, Ghent 9000, Belgium
| | - Boris Tamgnoue
- Department of Crop Science, University of Dschang, Dschang, Cameroon
| | - Brendan Furneaux
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä 40014, Finland
| | | | - Casper Nyamukondiwa
- Department of Biological Sciences and Biotechnology, Botswana International University of Science and Technology, Palapye 10071, Botswana
| | - Cathy Sharp
- Natural History Museum of Zimbabwe, Bulawayo, Zimbabwe
| | - César Marín
- Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Universidad SantoTomás, Valdivia, Chile
| | - Daniyal Gohar
- Center of Mycology and Microbiology, University of Tartu, Tartu 50409, Estonia
| | - Darta Klavina
- Latvian State Forest Research Institute Silava, Salaspils 2169, Latvia
| | - Dipon Sharmah
- Department of Botany, Jawaharlal Nehru Rajkeeya Mahavidyalaya, Pondicherry University, Port Blair 744101, India
| | - Dong-Qin Dai
- College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China
| | - Eduardo Nouhra
- Instituto Multidisciplinario de Biología Vegetal (CONICET), Universidad Nacional de Córdoba, Cordoba 5000, Argentina
| | - Elisabeth Machteld Biersma
- Natural History Museum of Denmark, Copenhagen 1123, Denmark
- British Antarctic Survey, NERC, High Cross, Cambridge CB3 0ET, UK
| | - Elisabeth Rähn
- Institute of Forestry and Engineering, Estonian University of Life Sciences, Tartu 51006, Estonia
| | - Erin Cameron
- Department of Environmental Science, Saint Mary's University, Halifax B3H 3C3, Canada
| | - Eske De Crop
- Department Biology, Ghent University, Ghent 9000, Belgium
| | - Eveli Otsing
- Center of Mycology and Microbiology, University of Tartu, Tartu 50409, Estonia
| | | | - Felipe Albornoz
- Land and Water, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Wembley 6014, Australia
| | - Francis Brearley
- Department of Natural Sciences, Manchester Metropolitan University, Manchester M1 5GD, UK
| | - Franz Buegger
- Helmholtz Zentrum München, Neuherberg 85764, Germany
| | - Geoffrey Zahn
- Biology Department, Utah Valley University, Orem, UT 84058, USA
| | - Gregory Bonito
- Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI 48824-6254, USA
| | - Inga Hiiesalu
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Isabel Barrio
- Faculty of Natural and Environmental Sciences, Agricultural University of Iceland, Reykjavík 112, Iceland
| | - Jacob Heilmann-Clausen
- Center for Macroecology, Evolution and Climate, University of Copenhagen, Copenhagen 1350, Denmark
| | - Jelena Ankuda
- Vokė branch, Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry (LAMMC), Vilnius LT-02232, Lithuania
| | - Jiri Doležal
- Department of Botany, Faculty of Science, University of South Bohemia, České Budějovice 37005, Czech Republic
| | - John Kupagme
- Center of Mycology and Microbiology, University of Tartu, Tartu 50409, Estonia
| | - Jose Maciá-Vicente
- Department of Environmental Sciences, Plant Ecology and Nature Conservation, Wageningen University and Research, Wageningen 6708, Netherlands
| | | | - József Geml
- ELKH-EKKE Lendület Environmental Microbiome Research Group, Eszterházy Károly Catholic University, Eger 3300, Hungary
| | - Juha Alatalo
- Environmental Science Center, Qatar University, Doha, Qatar
| | | | - Kadri Põldmaa
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
- Natural History Museum, University of Tartu, Tartu 51003, Estonia
| | - Kadri Runnel
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
| | - Kalev Adamson
- Institute of Forestry and Engineering, Estonian University of Life Sciences, Tartu 51006, Estonia
| | - Kari-Anne Bråthen
- Department of Arctic and Marine Biology, The Arctic University of Norway, Tromsø 9019, Norway
| | - Karin Pritsch
- Helmholtz Zentrum München, Neuherberg 85764, Germany
| | - Kassim Tchan Issifou
- Research Unit Tropical Mycology and Plants-Soil Fungi Interactions, University of Parakou, Parakou 00229, Benin
| | - Kęstutis Armolaitis
- Department of Silviculture and Ecology, Institute of Forestry, Lithuanian Research Centre for Agriculture and Forestry (LAMMC), Girionys 53101, Lithuania
| | - Kevin Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Kevin K. Newsham
- British Antarctic Survey, NERC, High Cross, Cambridge CB3 0ET, UK
| | - Kristel Panksep
- Chair of Hydrobiology and Fishery, Estonian University of Life Sciences, Tartu 51006, Estonia
| | - Adebola Azeez Lateef
- Department of Plant Biology, Faculty of Life Science, University of Ilorin, Ilorin 240102, Nigeria
- Department of Forest Sciences, University of Helsinki, Helsinki 00014, Finland
| | - Linda Hansson
- Gothenburg Centre for Sustainable Development, Gothenburg 41133, Sweden
| | - Louis Lamit
- Department of Biology, Syracuse University, Syracuse 13244, USA
| | - Malka Saba
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Maria Tuomi
- Department of Arctic and Marine Biology, The Arctic University of Norway, Tromsø 9019, Norway
| | - Marieka Gryzenhout
- Department of Genetics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein 9300, South Africa
| | - Marijn Bauters
- Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Meike Piepenbring
- Mycology Working Group, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - Nalin N. Wijayawardene
- College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, China
| | - Nourou Yorou
- Research Unit Tropical Mycology and Plants-Soil Fungi Interactions, University of Parakou, Parakou 00229, Benin
| | - Olavi Kurina
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu 51006, Estonia
| | - Peter Mortimer
- Center For Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Peter Meidl
- Freie Universität Berlin, Institut für Biologie, Berlin 14195, Germany
| | - Petr Kohout
- Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Rasmus Puusepp
- Center of Mycology and Microbiology, University of Tartu, Tartu 50409, Estonia
| | - Rein Drenkhan
- Institute of Forestry and Engineering, Estonian University of Life Sciences, Tartu 51006, Estonia
| | - Roberto Garibay-Orijel
- Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Roberto Godoy
- Instituto Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chile
| | - Saad Alkahtani
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh Rahimlou
- Center of Mycology and Microbiology, University of Tartu, Tartu 50409, Estonia
| | - Sergey Dudov
- Department of Ecology and Plant Geography, Moscow Lomonosov State University, Moscow 119234, Russia
| | - Sergei Põlme
- Center of Mycology and Microbiology, University of Tartu, Tartu 50409, Estonia
- Natural History Museum, University of Tartu, Tartu 51003, Estonia
| | - Soumya Ghosh
- Department of Genetics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein 9300, South Africa
| | - Sunil Mundra
- Department of Biology, College of Science, United Arab Emirates University (UAEU), Al Ain, UAE
| | - Talaat Ahmed
- Environmental Science Center, Qatar University, Doha, Qatar
| | - Tarquin Netherway
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala 75007, Sweden
| | - Terry Henkel
- Department of Biological Sciences, California State Polytechnic University, Arcata, CA 95521, USA
| | - Tomas Roslin
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala 75007, Sweden
| | - Vincent Nteziryayo
- Department of Food Science and Technology, University of Burundi, Bujumbura Burundi
| | - Vladimir Fedosov
- Department of Ecology and Plant Geography, Moscow Lomonosov State University, Moscow 119234, Russia
| | - Vladimir Onipchenko
- Department of Ecology and Plant Geography, Moscow Lomonosov State University, Moscow 119234, Russia
| | | | - Young Lim
- School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul 08826, Korea
| | - Michael Van Nuland
- Society for the Protection of Underground Networks (SPUN), Dover, DE 19901, USA
| | | | | | - Urmas Kõljalg
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu 50409, Estonia
- Natural History Museum, University of Tartu, Tartu 51003, Estonia
| | - Kessy Abarenkov
- Natural History Museum, University of Tartu, Tartu 51003, Estonia
| | - Leho Tedersoo
- Center of Mycology and Microbiology, University of Tartu, Tartu 50409, Estonia
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| |
Collapse
|
29
|
Falkai P, Rossner MJ, Raabe FJ, Wagner E, Keeser D, Maurus I, Roell L, Chang E, Seitz-Holland J, Schulze TG, Schmitt A. Disturbed Oligodendroglial Maturation Causes Cognitive Dysfunction in Schizophrenia: A New Hypothesis. Schizophr Bull 2023; 49:1614-1624. [PMID: 37163675 PMCID: PMC10686333 DOI: 10.1093/schbul/sbad065] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
BACKGROUND AND HYPOTHESIS Cognitive impairment is a hallmark of schizophrenia, but no effective treatment is available to date. The underlying pathophysiology includes disconnectivity between hippocampal and prefrontal brain regions. Supporting evidence comes from diffusion-weighted imaging studies that suggest abnormal organization of frontotemporal white matter pathways in schizophrenia. STUDY DESIGN Here, we hypothesize that in schizophrenia, deficient maturation of oligodendrocyte precursor cells (OPCs) into mature oligodendrocytes substantially contributes to abnormal frontotemporal macro- and micro-connectivity and subsequent cognitive deficits. STUDY RESULTS Our postmortem studies indicate a reduced oligodendrocyte number in the cornu ammonis 4 (CA4) subregion of the hippocampus, and others have reported the same histopathological finding in the dorsolateral prefrontal cortex. Our series of studies on aerobic exercise training showed a volume increase in the hippocampus, specifically in the CA4 region, and improved cognition in individuals with schizophrenia. The cognitive effects were subsequently confirmed by meta-analyses. Cell-specific schizophrenia polygenic risk scores showed that exercise-induced CA4 volume increase significantly correlates with OPCs. From animal models, it is evident that early life stress and oligodendrocyte-related gene variants lead to schizophrenia-related behavior, cognitive deficits, impaired oligodendrocyte maturation, and reduced myelin thickness. CONCLUSIONS Based on these findings, we propose that pro-myelinating drugs (e.g., the histamine blocker clemastine) combined with aerobic exercise training may foster the regeneration of myelin plasticity as a basis for restoring frontotemporal connectivity and cognition in schizophrenia.
Collapse
Affiliation(s)
- Peter Falkai
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
- Max-Planck-Institute of Psychiatry, Munich, Germany
| | - Moritz J Rossner
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Florian J Raabe
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Elias Wagner
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Daniel Keeser
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
- NeuroImaging Core Unit Munich (NICUM), University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Isabel Maurus
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Lukas Roell
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
- NeuroImaging Core Unit Munich (NICUM), University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Emily Chang
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Johanna Seitz-Holland
- Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Thomas G Schulze
- Institute for Psychiatric Phenomic and Genomic (IPPG), Munich, Germany
| | - Andrea Schmitt
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilian University, Munich, Germany
- Laboratory of Neuroscience (LIM27), Institute of Psychiatry, University of São Paulo (USP), São Paulo-SP, Brazil
| |
Collapse
|
30
|
Kokollari A, Werner M, Lindner C, Pham TL, Thomas F. Rapid On-Resin N-Formylation of Peptides as One-Pot Reaction. Chembiochem 2023; 24:e202300571. [PMID: 37695727 DOI: 10.1002/cbic.202300571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/13/2023]
Abstract
N-formylation is a common pre- and post-translational modification of the N-terminus or the lysine side chain of peptides and proteins that plays a role in the initiation of immune responses, gene expression, or epigenetics. Despite its high biological relevance, protocols for the chemical N-formylation of synthetic peptides are scarce. The few available methods are elaborate in their execution and the yields are highly sequence-dependent. We present a rapid, easy-to-use one-pot procedure that runs at room temperature and can be used to formylate protected peptides at both the N-terminus and the lysine side chain on the resin in near-quantitative yields. Only insensitive, storage-stable standard chemicals - formic acid, acetic anhydride, pyridine and DMF - are used. Formylation works for both short and long peptides of up to 34 amino acids and over the spectrum of canonical amino acids.
Collapse
Affiliation(s)
- Agon Kokollari
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Marius Werner
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
- Department of Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University, Im Neuenheimer Feld 364, 69120, Heidelberg, Germany
| | - Christina Lindner
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
- Department of Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University, Im Neuenheimer Feld 364, 69120, Heidelberg, Germany
| | - Truc Lam Pham
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Franziska Thomas
- Institute of Organic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| |
Collapse
|
31
|
Mustafa UK, Sauli E, Brinkel J, Kreppel KS. Health professionals' knowledge on dengue and health facility preparedness for case detection: A cross-sectional study in Dar es Salaam, Tanzania. PLoS Negl Trop Dis 2023; 17:e0011761. [PMID: 37988330 PMCID: PMC10662763 DOI: 10.1371/journal.pntd.0011761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 10/30/2023] [Indexed: 11/23/2023] Open
Abstract
Dengue presents a growing public health concern in the Dar es Salaam region of Tanzania, marked by the recurring incidence of outbreaks. Unfortunately, there is little information available on the region's preparedness in terms of health care workers' knowledge on dengue as well as the availability of reagents and equipment essential for diagnosing and monitoring of dengue infections. To elucidate this, 78 health facilities were visited in Temeke district and structured questionnaires were distributed to 324 health care workers. The aim was to evaluate health care workers' knowledge on dengue and to assess the availability of reagents and equipment essential for diagnosing and monitoring of dengue infections. Content validity of the questionnaire was achieved through extensive literature review and it exhibited high reliability (Cronbach Alpha coefficient = 0.813). Cumulative scores for responses on knowledge questions by health care workers were computed. Characteristics such as level of education, place of work and gender were tested for association with these scores using chi-square tests and logistics regression. Almost all health care workers (99.7%) were aware of dengue disease. However, less than half (46.9%) had knowledge scores of or over 40%. Clinicians had approximately four times higher knowledge scores than other cadres (AOR, 3.637; p-value≤ 0.0001), and those who worked in private facilities had twice the knowledge score than those working in government institutions (AOR, 2.071; p-value = 0.007). Only 8.6%, 35.6% and 14.7% of respondents reported the availability of dengue rapid tests, medical guidelines and refresher training respectively, showing a lack of health facilities readiness for the detection of dengue infections. Based on findings from this study, we recommend government authorities to build capacity of health care workers, to improve their understanding of dengue. We also urge the government and stakeholders to work together to ensure availability of diagnostic tests and other tools needed for diagnosis and surveillance of dengue.
Collapse
Affiliation(s)
- Ummul-khair Mustafa
- School of Life Science and Bioengineering, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania
| | - Elingarami Sauli
- School of Life Science and Bioengineering, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania
| | - Johanna Brinkel
- Department of Infectious Disease Epidemiology, Bernhard Nocht lnstitute for Tropical Medicine, Hamburg, Germany
| | - Katharina Sophia Kreppel
- School of Life Science and Bioengineering, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania
- Department of Public Health, Institute of Tropical Medicine, Antwerpen, Belgium
| |
Collapse
|
32
|
Pecinatto H, Rêgo CRC, Wenzel W, Frota CA, Perrone BMS, Piotrowski MJ, Guedes-Sobrinho D, Dias AC, Mota C, Gusmão MSS, Frota HO. Unveiling oxygen vacancy impact on lizardite thermo and mechanical properties. Sci Rep 2023; 13:17157. [PMID: 37821570 PMCID: PMC10567844 DOI: 10.1038/s41598-023-44424-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/08/2023] [Indexed: 10/13/2023] Open
Abstract
Here, we performed a systematic DFT study assisted by the workflow framework SimStack for the mechanical and thermodynamic properties of the clay mineral lizardite in pristine and six different types of O vacancies configurations. In most cases, the defect caused a structural phase transition in the lizardite from the trigonal (pristine) to the triclinic phase. The results show that oxygen vacancies in lizardite significantly reduce the lattice thermal conductivity, accompanied by an elastic moduli reduction and an anisotropy index increase. Through the P-V relation, an increase in compressibility was evidenced for vacancy configurations. Except for the vacancy with the same crystalline structure as pristine lizardite, the sound velocities of the other vacancy configurations produce a decrease in these velocities, and it is essential to highlight high values for the Grüneisen parameter. We emphasize the great relevance of the punctual-defects introduction, such as O vacancies, in lizardite, since this microstructural design is responsible for the decrease of the lattice thermal conductivity in comparison with the pristine system by decreasing the heat transfer ability, turning lizardite into a promising candidate for thermoelectric materials.
Collapse
Affiliation(s)
- H Pecinatto
- PPG-FIS, Federal University of Amazonas, Manaus, AM, Brazil
| | - Celso R C Rêgo
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology Hermann-von-Helmholtz-Platz, 76344, Eggenstein-Leopoldshafen, Germany.
| | - W Wenzel
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology Hermann-von-Helmholtz-Platz, 76344, Eggenstein-Leopoldshafen, Germany
| | - C A Frota
- Department of Civil Engineering, Federal University of Amazonas, Manaus, AM, Brazil
| | - B M S Perrone
- PPG-FIS, Federal University of Amazonas, Manaus, AM, Brazil
| | - Maurício J Piotrowski
- Department of Physics, Federal University of Pelotas, PO Box 354, Pelotas, RS, 96010-900, Brazil
| | | | - Alexandre C Dias
- University of Brasília, Institute of Physics, Brasília-DF, 70919-970, Brazil
| | - Cicero Mota
- Department of Mathematics, Federal University of Amazonas, Manaus, AM, Brazil
| | - M S S Gusmão
- Department of Physics, Federal University of Amazonas, Manaus, AM, Brazil
| | - H O Frota
- Department of Physics, Federal University of Amazonas, Manaus, AM, Brazil
| |
Collapse
|
33
|
Miebach L, Melo‐Zainzinger G, Freund E, Clemen R, Cecchini AL, Bekeschus S. Medical Gas Plasma Technology Combines with Antimelanoma Therapies and Promotes Immune-Checkpoint Therapy Responses. Adv Sci (Weinh) 2023; 10:e2303183. [PMID: 37541287 PMCID: PMC10558686 DOI: 10.1002/advs.202303183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/11/2023] [Indexed: 08/06/2023]
Abstract
Strategies to improve activity and selectivity are major goals in oncological drug development. Medical gas plasma therapy has been subject to intense research in dermatooncology recently. Based on partial gas ionization, this approach is exceptional in generating a variety of reactive oxygen species simultaneously that can be applied locally at the tumor side. It is hypothesized that combined gas plasma treatment can potentiate drug responses in the treatment of melanoma. Using a plasma jet approved as medical device in Europe, a systematic screening of 46 mitochondria-targeted drugs identifies five agents synergizing in vitro and in vivo. Increased intratumoral leucocyte infiltration points to immunomodulatory aspects of the treatment, motivating to investigate responses to immune checkpoint blockade in combination with plasma. Tumor growth is monitored based on bioluminescent imaging, and single-cell suspensions are retrieved from each tumor to characterize tumor-infiltrating leucocytes using multicolor flow cytometry. Gene expression profiling is done using a validated NanoString panel targeting 770 genes specifically designed for immuno-oncological research. Cell type abundancies are characterized from bulk RNA samples using the CIBERSORT computational framework. Collectively, the results indicate that local application of medical gas plasma technology synergizes with mitochondria-targeted drugs and anti-PD1 checkpoint therapy in treating melanoma.
Collapse
Affiliation(s)
- Lea Miebach
- Department of General, Thoracic, Vascular, and Visceral SurgeryGreifswald University Medical Center17475GreifswaldGermany
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)17489GreifswaldGermany
| | - Gabriella Melo‐Zainzinger
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)17489GreifswaldGermany
- Cancer Research UnitBoehringer IngelheimVienna1121Austria
| | - Eric Freund
- Department of General, Thoracic, Vascular, and Visceral SurgeryGreifswald University Medical Center17475GreifswaldGermany
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)17489GreifswaldGermany
- Department of NeurosurgeryWien University Medical CenterVienna1090Austria
| | - Ramona Clemen
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)17489GreifswaldGermany
| | | | - Sander Bekeschus
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)17489GreifswaldGermany
- Clinic for Dermatology and VenerologyRostock University Medical Center18057RostockGermany
| |
Collapse
|
34
|
Diedrich K, Krause B, Berg O, Rarey M. PoseEdit: enhanced ligand binding mode communication by interactive 2D diagrams. J Comput Aided Mol Des 2023; 37:491-503. [PMID: 37515714 PMCID: PMC10440272 DOI: 10.1007/s10822-023-00522-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/13/2023] [Indexed: 07/31/2023]
Abstract
In this article, we present PoseEdit, a new, interactive frontend of the popular pose visualization tool PoseView. PoseEdit automatically produces high-quality 2D diagrams of intermolecular interactions in 3D binding sites calculated from ligands in complex with protein, DNA, and RNA. The PoseView diagrams have been improved in several aspects, most notably in their interactivity. Thanks to the easy-to-use 2D editor of PoseEdit, the diagrams are extensively editable and extendible by the user, can be merged with other diagrams, and even be created from scratch. A large variety of graphical objects in the diagram can be moved, rotated, selected and highlighted, mirrored, removed, or even newly added. Furthermore, PoseEdit enables a synchronized 2D-3D view of macromolecule-ligand complexes simplifying the analysis of structural features and interactions. The representation of individual diagram objects regarding their visualized chemical properties, like stereochemistry, and general graphical styles, like the color of interactions, can additionally be edited. The primary objective of PoseEdit is to support scientists with an enhanced way to communicate ligand binding mode information through graphical 2D representations optimized with the scientist's input in accordance with objective criteria and individual needs. PoseEdit is freely available on the ProteinsPlus web server ( https://proteins.plus ).
Collapse
Affiliation(s)
- Konrad Diedrich
- Universität Hamburg, ZBH-Center for Bioinformatics, 20146, Hamburg, Germany
| | - Bennet Krause
- Universität Hamburg, ZBH-Center for Bioinformatics, 20146, Hamburg, Germany
- Capgemini, 10785, Berlin, Germany
| | - Ole Berg
- Universität Hamburg, ZBH-Center for Bioinformatics, 20146, Hamburg, Germany
| | - Matthias Rarey
- Universität Hamburg, ZBH-Center for Bioinformatics, 20146, Hamburg, Germany.
| |
Collapse
|
35
|
Riebold D, Mahnkopf M, Wicht K, Zubiria-Barrera C, Heise J, Frank M, Misch D, Bauer T, Stocker H, Slevogt H. Axenic Long-Term Cultivation of Pneumocystis jirovecii. J Fungi (Basel) 2023; 9:903. [PMID: 37755011 PMCID: PMC10533121 DOI: 10.3390/jof9090903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/18/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023] Open
Abstract
Pneumocystis jirovecii, a fungus causing severe Pneumocystis pneumonia (PCP) in humans, has long been described as non-culturable. Only isolated short-term experiments with P. jirovecii and a small number of experiments involving animal-derived Pneumocystis species have been published to date. However, P. jirovecii culture conditions may differ significantly from those of animal-derived Pneumocystis, as there are major genotypic and phenotypic differences between them. Establishing a well-performing P. jirovecii cultivation is crucial to understanding PCP and its pathophysiological processes. The aim of this study, therefore, was to develop an axenic culture for Pneumocystis jirovecii. To identify promising approaches for cultivation, a literature survey encompassing animal-derived Pneumocystis cultures was carried out. The variables identified, such as incubation time, pH value, vitamins, amino acids, and other components, were trialed and adjusted to find the optimum conditions for P. jirovecii culture. This allowed us to develop a medium that produced a 42.6-fold increase in P. jirovecii qPCR copy numbers after a 48-day culture. Growth was confirmed microscopically by the increasing number and size of actively growing Pneumocystis clusters in the final medium, DMEM-O3. P. jirovecii doubling time was 8.9 days (range 6.9 to 13.6 days). In conclusion, we successfully cultivated P. jirovecii under optimized cell-free conditions in a 70-day long-term culture for the first time. However, further optimization of the culture conditions for this slow grower is indispensable.
Collapse
Affiliation(s)
- Diana Riebold
- Research Centre of Medical Technology and Biotechnology (FZMB), 99947 Bad Langensalza, Germany; (M.M.); (J.H.)
| | - Marie Mahnkopf
- Research Centre of Medical Technology and Biotechnology (FZMB), 99947 Bad Langensalza, Germany; (M.M.); (J.H.)
| | - Kristina Wicht
- Separation Science Group, Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Gent, Belgium;
| | - Cristina Zubiria-Barrera
- Respiratory Infection Dynamics Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (C.Z.-B.); (H.S.)
- Department of Respiratory Medicine and Infectious Diseases, Hannover Medical School, German Center for Lung Research (DZL), BREATH, 30625 Hannover, Germany
| | - Jan Heise
- Research Centre of Medical Technology and Biotechnology (FZMB), 99947 Bad Langensalza, Germany; (M.M.); (J.H.)
| | - Marcus Frank
- Medical Biology and Electron Microscopy Centre (EMZ), University Medicine Rostock, 18057 Rostock, Germany;
| | - Daniel Misch
- Lungenklinik Heckeshorn, Helios Klinikum Emil-von-Behring, 14165 Berlin, Germany; (D.M.); (T.B.)
| | - Torsten Bauer
- Lungenklinik Heckeshorn, Helios Klinikum Emil-von-Behring, 14165 Berlin, Germany; (D.M.); (T.B.)
| | - Hartmut Stocker
- Clinic for Infectiology, St. Joseph’s Hospital Berlin, 12101 Berlin, Germany;
| | - Hortense Slevogt
- Respiratory Infection Dynamics Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (C.Z.-B.); (H.S.)
- Department of Respiratory Medicine and Infectious Diseases, Hannover Medical School, German Center for Lung Research (DZL), BREATH, 30625 Hannover, Germany
| |
Collapse
|
36
|
Vaideanu P, Stepanek C, Dima M, Schrepfer J, Matos F, Ionita M, Lohmann G. Large-scale sea ice-Surface temperature variability linked to Atlantic meridional overturning circulation. PLoS One 2023; 18:e0290437. [PMID: 37647314 PMCID: PMC10468057 DOI: 10.1371/journal.pone.0290437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 08/08/2023] [Indexed: 09/01/2023] Open
Abstract
Due to its involvement in numerous feedbacks, sea ice plays a crucial role not only for polar climate but also at global scale. We analyse state-of-the-art observed, reconstructed, and modelled sea-ice concentration (SIC) together with sea surface temperature (SST) to disentangle the influence of different forcing factors on the variability of these coupled fields. Canonical Correlation Analysis provides distinct pairs of coupled Arctic SIC-Atlantic SST variability which are linked to prominent oceanic and atmospheric modes of variability over the period 1854-2017. The first pair captures the behaviour of the Atlantic meridional overturning circulation (AMOC) while the third and can be associated with the North Atlantic Oscillation (NAO) in a physically consistent manner. The dominant global SIC-Atlantic SST coupled mode highlights the contrast between the responses of Arctic and Antarctic sea ice to changes in AMOC over the 1959-2021 period. Model results indicate that coupled SST-SIC patterns can be associated with changes in ocean circulation. We conclude that a correct representation of AMOC-induced coupled SST-SIC variability in climate models is essential to understand the past, present and future sea-ice evolution.
Collapse
Affiliation(s)
- Petru Vaideanu
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
- Faculty of Physics, University of Bucharest, Bucharest, Romania
| | - Christian Stepanek
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
| | - Mihai Dima
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
- Faculty of Physics, University of Bucharest, Bucharest, Romania
| | - Jule Schrepfer
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
| | - Fernanda Matos
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
| | - Monica Ionita
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
- Emil Racovita Institute of Speleology, Romanian Academy, Cluj-Napoca, Romania
- Faculty of Forestry,” Stefan cel Mare” University of Suceava, Suceava, Romania
| | - Gerrit Lohmann
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
- MARUM & Department of Environmental Physics, University of Bremen, Bremen, Germany
| |
Collapse
|
37
|
Engelhart-Straub S, Haack M, Awad D, Brueck T, Mehlmer N. Optimization of Rhodococcus erythropolis JCM3201 T Nutrient Media to Improve Biomass, Lipid, and Carotenoid Yield Using Response Surface Methodology. Microorganisms 2023; 11:2147. [PMID: 37763991 PMCID: PMC10534354 DOI: 10.3390/microorganisms11092147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
The oleaginous bacterium Rhodococcus erythropolis JCM3201T offers various unique enzyme capabilities, and it is a potential producer of industrially relevant compounds, such as triacylglycerol and carotenoids. To develop this strain into an efficient production platform, the characterization of the strain's nutritional requirement is necessary. In this work, we investigate its substrate adaptability. Therefore, the strain was cultivated using nine nitrogen and eight carbon sources at a carbon (16 g L-1) and nitrogen (0.16 g L-1) weight ratio of 100:1. The highest biomass accumulation (3.1 ± 0.14 g L-1) was achieved using glucose and ammonium acetate. The highest lipid yield (156.7 ± 23.0 mg g-1DCW) was achieved using glucose and yeast extract after 192 h. In order to enhance the dependent variables: biomass, lipid and carotenoid accumulation after 192 h, for the first time, a central composite design was employed to determine optimal nitrogen and carbon concentrations. Nine different concentrations were tested. The center point was tested in five biological replicates, while all other concentrations were tested in duplicates. While the highest biomass (8.00 ± 0.27 g L-1) was reached at C:N of 18.87 (11 g L-1 carbon, 0.583 g L-1 nitrogen), the highest lipid yield (100.5 ± 4.3 mg g-1DCW) was determined using a medium with 11 g L-1 of carbon and only 0.017 g L-1 of nitrogen. The highest carotenoid yield (0.021 ± 0.001 Abs454nm mg-1DCW) was achieved at a C:N of 12 (6 g L-1 carbon, 0.5 g L-1 nitrogen). The presented results provide new insights into the physiology of R. erythropolis under variable nutritional states, enabling the selection of an optimized media composition for the production of valuable oleochemicals or pigments, such as rare odd-chain fatty acids and monocyclic carotenoids.
Collapse
Affiliation(s)
| | | | | | - Thomas Brueck
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany
| | - Norbert Mehlmer
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany
| |
Collapse
|
38
|
Joseph BP, Weber V, Knüpfer L, Giorgetti A, Alfonso-Prieto M, Krauß S, Carloni P, Rossetti G. Low Molecular Weight Inhibitors Targeting the RNA-Binding Protein HuR. Int J Mol Sci 2023; 24:13127. [PMID: 37685931 PMCID: PMC10488267 DOI: 10.3390/ijms241713127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
The RNA-binding protein human antigen R (HuR) regulates stability, translation, and nucleus-to-cytoplasm shuttling of its target mRNAs. This protein has been progressively recognized as a relevant therapeutic target for several pathologies, like cancer, neurodegeneration, as well as inflammation. Inhibitors of mRNA binding to HuR might thus be beneficial against a variety of diseases. Here, we present the rational identification of structurally novel HuR inhibitors. In particular, by combining chemoinformatic approaches, high-throughput virtual screening, and RNA-protein pulldown assays, we demonstrate that the 4-(2-(2,4,6-trioxotetrahydropyrimidin-5(2H)-ylidene)hydrazineyl)benzoate ligand exhibits a dose-dependent HuR inhibition effect in binding experiments. Importantly, the chemical scaffold is new with respect to the currently known HuR inhibitors, opening up a new avenue for the design of pharmaceutical agents targeting this important protein.
Collapse
Affiliation(s)
- Benjamin Philipp Joseph
- Institute for Neuroscience and Medicine and Institute for Advanced Simulations (INM-9/IAS-5), Computational Biomedicine, Forschungszentrum Jülich, 52425 Jülich, Germany; (B.P.J.); (V.W.); (A.G.); (M.A.-P.); (G.R.)
- Faculty of Mathematics, Computer Science and Natural Sciences, RWTH Aachen University, 52062 Aachen, Germany
| | - Verena Weber
- Institute for Neuroscience and Medicine and Institute for Advanced Simulations (INM-9/IAS-5), Computational Biomedicine, Forschungszentrum Jülich, 52425 Jülich, Germany; (B.P.J.); (V.W.); (A.G.); (M.A.-P.); (G.R.)
- Faculty of Mathematics, Computer Science and Natural Sciences, RWTH Aachen University, 52062 Aachen, Germany
| | - Lisa Knüpfer
- Institute of Biology, University of Siegen, 57076 Siegen, Germany;
| | - Alejandro Giorgetti
- Institute for Neuroscience and Medicine and Institute for Advanced Simulations (INM-9/IAS-5), Computational Biomedicine, Forschungszentrum Jülich, 52425 Jülich, Germany; (B.P.J.); (V.W.); (A.G.); (M.A.-P.); (G.R.)
- Department of Biotechnology, University of Verona, 37134 Verona, Italy
| | - Mercedes Alfonso-Prieto
- Institute for Neuroscience and Medicine and Institute for Advanced Simulations (INM-9/IAS-5), Computational Biomedicine, Forschungszentrum Jülich, 52425 Jülich, Germany; (B.P.J.); (V.W.); (A.G.); (M.A.-P.); (G.R.)
| | - Sybille Krauß
- Institute of Biology, University of Siegen, 57076 Siegen, Germany;
| | - Paolo Carloni
- Institute for Neuroscience and Medicine and Institute for Advanced Simulations (INM-9/IAS-5), Computational Biomedicine, Forschungszentrum Jülich, 52425 Jülich, Germany; (B.P.J.); (V.W.); (A.G.); (M.A.-P.); (G.R.)
- Faculty of Mathematics, Computer Science and Natural Sciences, RWTH Aachen University, 52062 Aachen, Germany
| | - Giulia Rossetti
- Institute for Neuroscience and Medicine and Institute for Advanced Simulations (INM-9/IAS-5), Computational Biomedicine, Forschungszentrum Jülich, 52425 Jülich, Germany; (B.P.J.); (V.W.); (A.G.); (M.A.-P.); (G.R.)
- Jülich Supercomputing Centre (JSC), Forschungszentrum Jülich, 52425 Jülich, Germany
- Department of Neurology, RWTH Aachen University, 44517 Aachen, Germany
| |
Collapse
|
39
|
Williams K, Fleck L, Fuchs A, Koenig J, Kaess M. Mother-child interactions in adolescents with borderline personality disorder traits and the impact of early life maltreatment. Child Adolesc Psychiatry Ment Health 2023; 17:96. [PMID: 37563641 PMCID: PMC10416495 DOI: 10.1186/s13034-023-00645-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/24/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Early detection and intervention of borderline personality disorder (BPD) in adolescence has become a public health priority. Theoretical models emphasize the role of social interactions and transgenerational mechanisms in the development of the disorder suggesting a closer look at caregiver-child relationships. METHODS The current study investigated mother-adolescent interactions and their association with adolescent BPD traits by using a case-control design. Thirty-eight adolescent patients with ≥ 3 BPD traits and their mothers (BPD-G) were investigated in contrast to 35 healthy control dyads (HC-G). Maternal, adolescent and dyadic behavior was coded using the Coding Interactive Behavior Manual (CIB) during two interactions: a fun day planning and a stress paradigm. Additional effects of maternal and/or adolescent early life maltreatment (ELM) on behavior were also explored. RESULTS BPD-G displayed a significantly lower quality of maternal, adolescent and dyadic behavior than the HC-G during both interactions. Maternal and adolescent behavior was predicted by BPD traits alone, whilst dyadic behavior was also influenced by general adolescent psychopathology. Exploratory analyses of CIB subscales showed that whilst HC-G increased their reciprocal behavior during stress compared to the fun day planning, BPD-G dyads decreased it. Maternal ELM did not differ between groups or have any effect on behavior. Adolescent ELM was correlated with behavioral outcome variables, but did not explain behavioral outcomes above and beyond the effect of clinical status. DISCUSSION/CONCLUSION Our data suggest a stronger focus on parent-child interactions in BPD-specific therapies to enhance long-term treatment outcomes in adolescent BPD patients. Further research employing study designs that allow the analyses of bidirectional transactions (e.g. longitudinal design, behavioral microcoding) is needed.
Collapse
Affiliation(s)
- Katharina Williams
- Department of Child and Adolescent Psychiatry, Centre for Psychosocial Medicine, Medical Faculty, University of Heidelberg, Blumenstr. 8, Heidelberg, Germany.
- Institute of Psychology, University of Heidelberg, Heidelberg, Germany.
| | - Leonie Fleck
- Department of Child and Adolescent Psychiatry, Centre for Psychosocial Medicine, Medical Faculty, University of Heidelberg, Blumenstr. 8, Heidelberg, Germany
| | - Anna Fuchs
- Department of Child and Adolescent Psychiatry, Centre for Psychosocial Medicine, Medical Faculty, University of Heidelberg, Blumenstr. 8, Heidelberg, Germany
| | - Julian Koenig
- Faculty of Medicine and University Hospital Cologne, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University of Cologne, Cologne, Germany
| | - Michael Kaess
- Department of Child and Adolescent Psychiatry, Centre for Psychosocial Medicine, Medical Faculty, University of Heidelberg, Blumenstr. 8, Heidelberg, Germany
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| |
Collapse
|
40
|
Bergmann C, Müller F, Distler JHW, Györfi AH, Völkl S, Aigner M, Kretschmann S, Reimann H, Harrer T, Bayerl N, Boeltz S, Wirsching A, Taubmann J, Rösler W, Spriewald B, Wacker J, Atzinger A, Uder M, Kuwert T, Mackensen A, Schett G. Treatment of a patient with severe systemic sclerosis (SSc) using CD19-targeted CAR T cells. Ann Rheum Dis 2023; 82:1117-1120. [PMID: 37147112 PMCID: PMC10359520 DOI: 10.1136/ard-2023-223952] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/06/2023] [Indexed: 05/07/2023]
Affiliation(s)
- Christina Bergmann
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Fabian Müller
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jörg H W Distler
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Rheumatology, Universitatsklinikum Dusseldorf, Dusseldorf, Germany
- Hiller Research Unit, University of Düsseldorf, Duesseldorf, Germany
| | - Andrea-Hermina Györfi
- Department of Rheumatology, Universitatsklinikum Dusseldorf, Dusseldorf, Germany
- Hiller Research Unit, University of Düsseldorf, Duesseldorf, Germany
| | - Simon Völkl
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michael Aigner
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Sascha Kretschmann
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Hannah Reimann
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Thomas Harrer
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Nadine Bayerl
- Institute of Radiology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Sebastian Boeltz
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Andreas Wirsching
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jule Taubmann
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Wolf Rösler
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Bernd Spriewald
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jochen Wacker
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Armin Atzinger
- Institute of Nuclear Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michael Uder
- Institute of Radiology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Torsten Kuwert
- Institute of Nuclear Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Andreas Mackensen
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 5-Haematology and Clinical Oncology, FAU Erlangen-Nurnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3- Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| |
Collapse
|
41
|
Mastrototaro L, Roden M. The effects of extracellular vesicles and their cargo on metabolism and its adaptation to physical exercise in insulin resistance and type 2 diabetes. Proteomics 2023:e2300078. [PMID: 37525338 DOI: 10.1002/pmic.202300078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 08/02/2023]
Abstract
Lifestyle modification represents the first-line strategy for the prevention and treatment of type 2 diabetes mellitus (T2DM), which is frequently associated with obesity and characterized by defective pancreatic insulin secretion and/or insulin resistance. Exercise training is an essential component of lifestyle modification and has been shown to ameliorate insulin resistance by reducing body fat mass and by enhancing skeletal muscle mitochondrial biogenesis and insulin-independent glucose uptake. Additionally, exercising stimulates the release of exerkines such as metabolites or cytokines, but also long non-coding RNA, microRNAs, cell-free DNA (cf-DNA), and extracellular vesicles (EVs), which contribute to inter-tissue communication. There is emerging evidence that EV number and content are altered in obesity and T2DM and may be involved in several metabolic processes, specifically either worsening or improving insulin resistance. This review summarizes the current knowledge on the metabolic effects of exercise training and on the potential role of humoral factors and EV as new biomarkers for early diagnosis and tailored treatment of T2DM.
Collapse
Affiliation(s)
- Lucia Mastrototaro
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
- German Center for Diabetes Research, Partner Düsseldorf, Neuherberg, Germany
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
- German Center for Diabetes Research, Partner Düsseldorf, Neuherberg, Germany
- Department of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| |
Collapse
|
42
|
Akmatov MK, Beisheeva NJ, Nurmatov AZ, Gulsunai SJ, Saikal KN, Derkenbaeva AA, Abdrahmanova ZO, Prokein J, Klopp N, Illig T, Kasymov OT, Nurmatov ZS, Pessler F. The Changing Epidemiology of Viral Hepatitis in a Post-Soviet Country-The Case of Kyrgyzstan. Pathogens 2023; 12:989. [PMID: 37623949 PMCID: PMC10459745 DOI: 10.3390/pathogens12080989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 08/26/2023] Open
Abstract
Historically, viral hepatitis has been a considerable public health problem in Central Asian countries, which may have worsened after the dissolution of the Soviet Union. However, up-to-date seroepidemiological studies are lacking. The aim of the present study was, therefore, to provide current estimates of the seroprevalence of viral hepatitis in Kyrgyzstan, one of the economically least developed countries in the region. We conducted a population-based cross-sectional study in 2018 in the capital of Kyrgyzstan, Bishkek (n = 1075). Participants, children and adults, were recruited from an outpatient clinic. The data were collected during face-to-face interviews. A blood sample (6 mL) was collected from each participant and tested with ELISA for the presence of serological markers for five viral hepatitides (A, B, C, D, and E). Post-stratification weighing was performed to obtain nationally representative findings. The overwhelming majority of the study participants were positive for anti-HAV (estimated seroprevalence, 75.3%; 95% confidence interval, 72.5-77.9%). The weighted seroprevalence estimates of HBsAg, anti-HCV, and anti-HDV were 2.2% (1.5-3.3%), 3.8% (2.8-5.1%), and 0.40% (0.15-1.01%), respectively. Anti-HEV seropositivity was 3.3% (2.4-4.5%). Of the 33 HBsAg-positive participants, five (15%) were anti-HDV-positive. Our study confirms that Kyrgyzstan remains a highly endemic country for hepatitis virus A and C infections. However, seroprevalences of HBV and HDV were lower than previously reported, and based on these data, the country could potentially be reclassified from high to (lower) intermediate endemicity. The observed anti-HEV seroprevalence resembles the low endemicity pattern characteristic of high-income countries.
Collapse
Affiliation(s)
- Manas K. Akmatov
- TWINCORE, Centre for Experimental and Clinical Infection Research, 30625 Hannover, Germany;
- Currently at Central Research Institute of Ambulatory Health Care, 10587 Berlin, Germany
| | - Nurgul J. Beisheeva
- National Scientific and Practical Center for Control of Viral Infections, Bishkek 720005, Kyrgyzstan; (N.J.B.); (A.Z.N.); (S.J.G.); (K.N.S.); (A.A.D.); (Z.O.A.); (Z.S.N.)
| | - Asylbek Z. Nurmatov
- National Scientific and Practical Center for Control of Viral Infections, Bishkek 720005, Kyrgyzstan; (N.J.B.); (A.Z.N.); (S.J.G.); (K.N.S.); (A.A.D.); (Z.O.A.); (Z.S.N.)
| | - Sattarova J. Gulsunai
- National Scientific and Practical Center for Control of Viral Infections, Bishkek 720005, Kyrgyzstan; (N.J.B.); (A.Z.N.); (S.J.G.); (K.N.S.); (A.A.D.); (Z.O.A.); (Z.S.N.)
| | - Kylychbekova N. Saikal
- National Scientific and Practical Center for Control of Viral Infections, Bishkek 720005, Kyrgyzstan; (N.J.B.); (A.Z.N.); (S.J.G.); (K.N.S.); (A.A.D.); (Z.O.A.); (Z.S.N.)
| | - Aisuluu A. Derkenbaeva
- National Scientific and Practical Center for Control of Viral Infections, Bishkek 720005, Kyrgyzstan; (N.J.B.); (A.Z.N.); (S.J.G.); (K.N.S.); (A.A.D.); (Z.O.A.); (Z.S.N.)
| | - Zamira O. Abdrahmanova
- National Scientific and Practical Center for Control of Viral Infections, Bishkek 720005, Kyrgyzstan; (N.J.B.); (A.Z.N.); (S.J.G.); (K.N.S.); (A.A.D.); (Z.O.A.); (Z.S.N.)
| | - Jana Prokein
- Hannover Unified Biobank, Hannover Medical School, 30625 Hannover, Germany; (J.P.); (N.K.); (T.I.)
| | - Norman Klopp
- Hannover Unified Biobank, Hannover Medical School, 30625 Hannover, Germany; (J.P.); (N.K.); (T.I.)
| | - Thomas Illig
- Hannover Unified Biobank, Hannover Medical School, 30625 Hannover, Germany; (J.P.); (N.K.); (T.I.)
| | - Omor T. Kasymov
- Scientific and Production Centre for Preventive Medicine, Ministry of Health, Bishkek 720005, Kyrgyzstan;
| | - Zuridin S. Nurmatov
- National Scientific and Practical Center for Control of Viral Infections, Bishkek 720005, Kyrgyzstan; (N.J.B.); (A.Z.N.); (S.J.G.); (K.N.S.); (A.A.D.); (Z.O.A.); (Z.S.N.)
| | - Frank Pessler
- TWINCORE, Centre for Experimental and Clinical Infection Research, 30625 Hannover, Germany;
- Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| |
Collapse
|
43
|
Bajracharya R, Kaaks R, Katzke V. Food Sources of Animal Protein in Relation to Overall and Cause-Specific Mortality-Causal Associations or Confounding? An Analysis of the EPIC-Heidelberg Cohort. Nutrients 2023; 15:3322. [PMID: 37571259 PMCID: PMC10421322 DOI: 10.3390/nu15153322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
While prior prospective iso-caloric substitution studies show a robust association between higher intake of animal protein and risk of mortality, associations observed for mortality risk in relation to major food sources of animal protein have been generally more diverse. We used the EPIC-Heidelberg cohort to examine if confounding, notably, by smoking, adiposity, or alcohol intake, could cause inconsistencies in estimated mortality hazard ratios (HR) related to intake levels of different types of meat and dairy products. Higher intakes of red or processed meats, and lower intakes of milk or cheese, were observed among current heavy smokers, participants with obesity, or heavy alcohol drinkers. Adjusting for age, sex, and total energy intake, risk models showed increased all-cause, cardiovascular, and cancer-related mortality with higher red or processed meat intakes (HR ranging from 1.25 [95% confidence interval = 1.15-1.36] to 1.76 [1.46-2.12] comparing highest to lowest tertiles), but reduced risks for poultry, milk, or cheese (HR ranging from 0.55 [0.43-0.72] to 0.88 [0.81-0.95]). Adjusting further for smoking history, adiposity indices, alcohol consumption, and physical activity levels, the statistical significance of all these observed was erased, except for the association of processed meat intake with cardiovascular mortality (HR = 1.36 [CI = 1.13-1.64]) and cheese intake with cancer mortality (HR = 0.86 [0.76-0.98]), which, however, were substantially attenuated. These findings suggest heavy confounding and provide little support for the hypothesis that animal protein, as a nutrient, is a major determinant of mortality risk.
Collapse
Affiliation(s)
| | | | - Verena Katzke
- Department of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; (R.B.); (R.K.)
| |
Collapse
|
44
|
Pappe E, Hammerich R, Saccomanno J, Sgarbossa T, Pohrt A, Schmidt B, Grah C, Eisenmann S, Holland A, Eggeling S, Stanzel F, Witzenrath M, Hübner RH. Impact of Coronavirus Disease 2019 on Hospital Admissions, Health Status, and Behavioral Changes of Patients with COPD. Chronic Obstr Pulm Dis 2023; 10:211-223. [PMID: 37140947 PMCID: PMC10484494 DOI: 10.15326/jcopdf.2022.0383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/20/2023] [Indexed: 05/05/2023]
Abstract
Introduction Patients with chronic obstructive pulmonary disease (COPD) have an increased risk of acquiring severe coronavirus disease 2019 (COVID-19), which is why self-isolation was recommended. However, long periods of social isolation, accompanied by limited access to health care systems, might influence the outcome of patients with severe COPD negatively. Methods Data from COPD and pneumonia patients at Charité-Universitätsmedizin Berlin and the volume of endoscopic lung volume reduction (ELVR) surgeries from the German Lung Emphysema Registry (Lungenemphysem Register e.V.) were analyzed from pre-pandemic (2012 to 2019) to the pandemic period (2020 and 2021). In addition, 52 patients with COPD Global initiative for chronic Obstructive Lung Disease (GOLD) stage 4 status included in the lung emphysema registry received questionnaires during lockdowns from June 2020 to April 2021. Results Admissions and ventilation therapies administered to COPD patients significantly decreased during the COVID-19 pandemic. Likewise, there was a reduction in ELVR treatments and follow-ups registered in German emphysema centers. Mortality was slightly higher among patients hospitalized with COPD during the pandemic. Increasing proportions of COPD patients with GOLD stage 3 and GOLD stage 4 status reported behavioral changes and subjective feelings of increasing COPD symptoms the longer the lockdown lasted. However, COPD symptom questionnaires revealed stable COPD symptoms over the pandemic time period. Summary This study reveals reduced COPD admissions and elective treatment procedures of COPD patients during the pandemic, but a slight increase in mortality among patients hospitalized with COPD, irrespective of COVID-19. Correspondingly, patients with severe COPD reported subjective deterioration of their health status, probably caused by their very strict compliance with lockdown measures.
Collapse
Affiliation(s)
- Eva Pappe
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ralf Hammerich
- Administrative Office for Clinical Quality and Risk Management, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Jacopo Saccomanno
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Thomas Sgarbossa
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Anne Pohrt
- Institute of Biometry and Clinical Epidemiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Bernd Schmidt
- Department of Respiratory Medicine, DRK Kliniken Berlin Mitte, Berlin, Germany
| | - Christian Grah
- Department of Internal Medicine and Respiratory Medicine, Clinic Havelhöhe Berlin, Berlin, Germany
| | - Stephan Eisenmann
- Department of Internal Medicine I, Pulmonary Medicine, University Hospital Halle (Saale), Germany
| | - Angelique Holland
- Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps-University Marburg, Marburg, Germany
| | - Stephan Eggeling
- Department of Thoracic Surgery, Vivantes Netzwerk für Gesundheit, Klinikum Neukölln, Berlin, Germany
| | | | - Martin Witzenrath
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ralf-Harto Hübner
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
45
|
Niekiel MF, Meyer JM, Lewitz H, Kittmann A, Nowak MA, Lofink F, Meyners D, Zollondz JH. What MEMS Research and Development Can Learn from a Production Environment. Sensors (Basel) 2023; 23:5549. [PMID: 37420715 DOI: 10.3390/s23125549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 07/09/2023]
Abstract
The intricate interdependency of device design and fabrication process complicates the development of microelectromechanical systems (MEMS). Commercial pressure has motivated industry to implement various tools and methods to overcome challenges and facilitate volume production. By now, these are only hesitantly being picked up and implemented in academic research. In this perspective, the applicability of these methods to research-focused MEMS development is investigated. It is found that even in the dynamics of a research endeavor, it is beneficial to adapt and apply tools and methods deduced from volume production. The key step is to change the perspective from fabricating devices to developing, maintaining and advancing the fabrication process. Tools and methods are introduced and discussed, using the development of magnetoelectric MEMS sensors within a collaborative research project as an illustrative example. This perspective provides both guidance to newcomers as well as inspiration to the well-versed experts.
Collapse
Affiliation(s)
- Malte Florian Niekiel
- Fraunhofer Institute for Silicon Technology ISIT, Fraunhoferstr. 1, 25524 Itzehoe, Germany
| | - Jana Marie Meyer
- Fraunhofer Institute for Silicon Technology ISIT, Fraunhoferstr. 1, 25524 Itzehoe, Germany
| | - Hanna Lewitz
- Institute for Material Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Anne Kittmann
- Institute for Material Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Marc Alexander Nowak
- Institute for Material Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Fabian Lofink
- Fraunhofer Institute for Silicon Technology ISIT, Fraunhoferstr. 1, 25524 Itzehoe, Germany
| | - Dirk Meyners
- Institute for Material Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany
| | - Jens-Hendrik Zollondz
- Fraunhofer Institute for Silicon Technology ISIT, Fraunhoferstr. 1, 25524 Itzehoe, Germany
| |
Collapse
|
46
|
Maria Antony AN, Narisetti N, Gladilin E. FDM data driven U-Net as a 2D Laplace PINN solver. Sci Rep 2023; 13:9116. [PMID: 37277366 DOI: 10.1038/s41598-023-35531-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 05/19/2023] [Indexed: 06/07/2023] Open
Abstract
Efficient solution of partial differential equations (PDEs) of physical laws is of interest for manifold applications in computer science and image analysis. However, conventional domain discretization techniques for numerical solving PDEs such as Finite Difference (FDM), Finite Element (FEM) methods are unsuitable for real-time applications and are also quite laborious in adaptation to new applications, especially for non-experts in numerical mathematics and computational modeling. More recently, alternative approaches to solving PDEs using the so-called Physically Informed Neural Networks (PINNs) received increasing attention because of their straightforward application to new data and potentially more efficient performance. In this work, we present a novel data-driven approach to solve 2D Laplace PDE with arbitrary boundary conditions using deep learning models trained on a large set of reference FDM solutions. Our experimental results show that both forward and inverse 2D Laplace problems can efficiently be solved using the proposed PINN approach with nearly real-time performance and average accuracy of 94% for different types of boundary value problems compared to FDM. In summary, our deep learning based PINN PDE solver provides an efficient tool with various applications in image analysis and computational simulation of image-based physical boundary value problems.
Collapse
Affiliation(s)
- Anto Nivin Maria Antony
- Leibniz Institute of Plant Genetics and Crop Plant Research, OT Gatersleben, Corrensstr. 3, 06466, Seeland, Germany.
| | - Narendra Narisetti
- Leibniz Institute of Plant Genetics and Crop Plant Research, OT Gatersleben, Corrensstr. 3, 06466, Seeland, Germany
| | - Evgeny Gladilin
- Leibniz Institute of Plant Genetics and Crop Plant Research, OT Gatersleben, Corrensstr. 3, 06466, Seeland, Germany.
| |
Collapse
|
47
|
Wollak B, Espinoza D, Dippel AC, Sturm M, Vrljic F, Gutowski O, Nielsen IG, Sheppard TL, Korup O, Horn R. Catalytic reactor for operando spatially resolved structure-activity profiling using high-energy X-ray diffraction. J Synchrotron Radiat 2023; 30:571-581. [PMID: 37042662 PMCID: PMC10161877 DOI: 10.1107/s1600577523001613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 02/22/2023] [Indexed: 05/06/2023]
Abstract
In heterogeneous catalysis, operando measurements probe catalysts in their active state and are essential for revealing complex catalyst structure-activity relationships. The development of appropriate operando sample environments for spatially resolved studies has come strongly into focus in recent years, particularly when coupled to the powerful and multimodal characterization tools available at synchrotron light sources. However, most catalysis studies at synchrotron facilities only measure structural information about the catalyst in a spatially resolved manner, whereas gas analysis is restricted to the reactor outlet. Here, a fully automated and integrated catalytic profile reactor setup is shown for the combined measurement of temperature, gas composition and high-energy X-ray diffraction (XRD) profiles, using the oxidative dehydrogenation of C2H6 to C2H4 over MoO3/γ-Al2O3 as a test system. The profile reactor methodology was previously developed for X-ray absorption spectroscopy and is here extended for operando XRD. The profile reactor is a versatile and accessible research tool for combined spatially resolved structure-activity profiling, enabling the use of multiple synchrotron-based characterization methods to promote a knowledge-based optimization of a wide range of catalytic systems in a time- and resource-efficient way.
Collapse
Affiliation(s)
- Birte Wollak
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Diego Espinoza
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Ann Christin Dippel
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Marina Sturm
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Filip Vrljic
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Ida G Nielsen
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Thomas L Sheppard
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344 Baden-Württemberg, Germany
| | - Oliver Korup
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Raimund Horn
- Institute of Chemical Reaction Engineering (CRT), Hamburg University of Technology (TUHH), Eißendorfer Straße 38, 21073 Hamburg, Germany
| |
Collapse
|
48
|
Abstract
Variceal bleeding is a consequence of severe portal hypertension in patients with liver cirrhosis. Although the rate of bleeding has decreased over time, variceal bleeding in the presence of acute-on-chronic liver failure (ACLF) carries a high risk of treatment failure and short-term mortality. Treatment and/or removal of precipitating events (mainly bacterial infection and alcoholic hepatitis) and decrease of portal pressure may improve outcome of patients with acute decompensation or ACLF. Transjugular intrahepatic portosystemic shunts (TIPSs), especially in the preemptive situation, have been found to efficiently control bleeding, prevent rebleeding, and reduce short-term mortality. Therefore, TIPS placement should be considered as an option in the management of ACLF patients with variceal bleeding.
Collapse
Affiliation(s)
- Wenyi Gu
- Department of Medical Clinic B, University Hospital Muenster, Muenster, Germany
- Medical Department I, Frankfurt University Hospital, Frankfurt am Main, Germany
| | - Markus Kimmann
- Department of Medical Clinic B, University Hospital Muenster, Muenster, Germany
| | - Wim Laleman
- Department of Medical Clinic B, University Hospital Muenster, Muenster, Germany
- Department of Gastroenterology and Hepatology, Section of Liver and Biliopancreatic Disorders, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Michael Praktiknjo
- Department of Medical Clinic B, University Hospital Muenster, Muenster, Germany
| | - Jonel Trebicka
- Department of Medical Clinic B, University Hospital Muenster, Muenster, Germany
- European Foundation for Study of Chronic Liver Failure, Barcelona, Spain
- Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark
| |
Collapse
|
49
|
Niyibizi JB, Ntawuyirushintege S, Nganabashaka JP, Umwali G, Tumusiime D, Ntaganda E, Rulisa S, Bavuma CM. Community Health Worker-Led Cardiovascular Disease Risk Screening and Referral for Care and Further Management in Rural and Urban Communities in Rwanda. Int J Environ Res Public Health 2023; 20:ijerph20095641. [PMID: 37174161 PMCID: PMC10178163 DOI: 10.3390/ijerph20095641] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
Cardiovascular disease (CVD) is a global health issue. Low- and middle-income countries (LMICs) are facing early CVD-related morbidity. Early diagnosis and treatment are an effective strategy to tackle CVD. The aim of this study was to assess the ability of community health workers (CHWs) to screen and identify persons with high risks of CVD in the communities, using a body mass index (BMI)-based CVD risk assessment tool, and to refer them to the health facility for care and follow-up. This was an action research study conducted in rural and urban communities, conveniently sampled in Rwanda. Five villages were randomly selected from each community, and one CHW per each selected village was identified and trained to conduct CVD risk screening using a BMI-based CVD risk screening tool. Each CHW was assigned to screen 100 fellow community members (CMs) for CVD risk and to refer those with CVD risk scores ≥10 (either moderate or high CVD risk) to a health facility for care and further management. Descriptive statistics with Pearson's chi-square test were used to assess any differences between rural and urban study participants vis-à-vis the key studied variables. Spearman's rank coefficient and Cohen's Kappa coefficient were mainly used to compare the CVD risk scoring from the CHWs with the CVD risk scoring from the nurses. Community members aged 35 to 74 years were included in the study. The participation rates were 99.6% and 99.4% in rural and urban communities, respectively, with female predominance (57.8% vs. 55.3% for rural and urban, p-value: 0.426). Of the participants screened, 7.4% had a high CVD risk (≥20%), with predominance in the rural community compared to the urban community (8.0% vs. 6.8%, p-value: 0.111). Furthermore, the prevalence of moderate or high CVD risk (≥10%) was higher in the rural community than in the urban community (26.7% vs. 21.1%, p-value: 0.111). There was a strong positive correlation between CHW-based CVD risk scoring and nurse-based CVD risk scoring in both rural and urban communities, 0.6215 (p-value < 0.001) vs. 0.7308 (p-value = 0.005). In regard to CVD risk characterization, the observed agreement to both the CHW-generated 10-year CVD risk assessment and the nurse-generated 10-year CVD risk assessment was characterized as "fair" in both rural and urban areas at 41.6% with the kappa statistic of 0.3275 (p-value < 001) and 43.2% with kappa statistic of 0.3229 (p-value =0.057), respectively. In Rwanda, CHWs can screen their fellow CMs for CVD risk and link those with high CVD risk to the healthcare facility for care and follow-up. CHWs could contribute to the prevention of CVDs through early diagnosis and early treatment at the bottom of the health system.
Collapse
Affiliation(s)
- Jean Berchmans Niyibizi
- College of Medicine and Health Sciences, University of Rwanda, Kigali 4285, Rwanda
- Global Public Health, Karolinska Institute, 171 77 Stockholm, Sweden
| | | | | | - Ghislaine Umwali
- College of Medicine and Health Sciences, University of Rwanda, Kigali 4285, Rwanda
| | - David Tumusiime
- College of Medicine and Health Sciences, University of Rwanda, Kigali 4285, Rwanda
| | - Evariste Ntaganda
- Non-Communicable Diseases Division, Rwanda Biomedical Center, Kigali 7162, Rwanda
| | - Stephen Rulisa
- College of Medicine and Health Sciences, University of Rwanda, Kigali 4285, Rwanda
| | | |
Collapse
|
50
|
Biedermann P, Klink P, Nocke MK, Papp CP, Harms D, Kebelmann M, Thürmer A, Choi M, Altmann B, Todt D, Hofmann J, Bock CT. Insertions and deletions in the hypervariable region of the hepatitis E virus genome in individuals with acute and chronic infection. Liver Int 2023; 43:794-804. [PMID: 36617681 DOI: 10.1111/liv.15517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/30/2022] [Accepted: 01/04/2023] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND AIMS Hepatitis E virus is a major cause of acute hepatitis worldwide and can progress to chronicity in immunocompromised individuals. Various virus-host recombination events have been reported in the hypervariable region of the hepatitis E virus genome, but the patterns of assembly and selection remain unclear. METHODS To gain further insight into viral evolution, we assessed the presence of low abundance variants in 16 samples from individuals with acute or chronic infection using a targeted next-generation sequencing approach. RESULTS In seven samples, different variants with insertions and/or deletions were identified. Among them, eight insertions originating either from human genes or from the hepatitis E virus genome. Five different deletions could be identified. The amino acid composition of sequences with insertions showed a higher frequency of lysine and a lower abundance of proline, and additionally acetylation and ubiquitination sites were more frequent than in hepatitis E virus wild-type sequences. CONCLUSIONS These findings suggest that the nucleotide composition of insertions and sites for post-translational modification may contribute to recombination events. Although the impact of low-level hepatitis E virus variants is uncertain, our results highlight the importance of a highly sensitive next-generation sequencing approach to capture the full diversity of hypervariable region.
Collapse
Affiliation(s)
- Paula Biedermann
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
- German Centre for Infection Research, Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Patrycja Klink
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Maximilian K Nocke
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - Christian-Patrick Papp
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
- German Centre for Infection Research, Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Dominik Harms
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Marianne Kebelmann
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Andrea Thürmer
- Genome Sequencing, Methodology and Research Infrastructure, Robert Koch Institute, Berlin, Germany
| | - Mira Choi
- Department of Nephrology and Intensive Medical Care, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Britta Altmann
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Daniel Todt
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany
- European Virus Bioinformatics Center (EVBC), Jena, Germany
| | - Jörg Hofmann
- German Centre for Infection Research, Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
- Labor Berlin, Charité-Vivantes GmbH, Berlin, Germany
| | - Claus-Thomas Bock
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
- Institute of Tropical Medicine, University of Tuebingen, Tuebingen, Germany
| |
Collapse
|