1
|
Pushpakumar S, Singh M, Sen U, Tyagi N, Tyagi SC. The role of the mitochondrial trans-sulfuration in cerebro-cardio renal dysfunction during trisomy down syndrome. Mol Cell Biochem 2024; 479:825-829. [PMID: 37198322 DOI: 10.1007/s11010-023-04761-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 05/05/2023] [Indexed: 05/19/2023]
Abstract
One in 700 children is born with the down syndrome (DS). In DS, there is an extra copy of X chromosome 21 (trisomy). Interestingly, the chromosome 21 also contains an extra copy of the cystathionine beta synthase (CBS) gene. The CBS activity is known to contribute in mitochondrial sulfur metabolism via trans-sulfuration pathway. We hypothesize that due to an extra copy of the CBS gene there is hyper trans-sulfuration in DS. We believe that understanding the mechanism of hyper trans-sulfuration during DS will be important in improving the quality of DS patients and towards developing new treatment strategies. We know that folic acid "1-carbon" metabolism (FOCM) cycle transfers the "1-carbon" methyl group to DNA (H3K4) via conversion of s-adenosyl methionine (SAM) to s-adenosyl homocysteine (SAH) by DNMTs (the gene writers). The demethylation reaction is carried out by ten-eleven translocation methylcytosine dioxygenases (TETs; the gene erasers) through epigenetics thus turning the genes off/on and opening the chromatin by altering the acetylation/HDAC ratio. The S-adenosyl homocysteine hydrolase (SAHH) hydrolyzes SAH to homocysteine (Hcy) and adenosine. The Hcy is converted to cystathionine, cysteine and hydrogen sulfide (H2S) via CBS/cystathioneγ lyase (CSE)/3-mercaptopyruvate sulfurtransferase (3MST) pathways. Adenosine by deaminase is converted to inosine and then to uric acid. All these molecules remain high in DS patients. H2S is a potent inhibitor of mitochondrial complexes I-IV, and regulated by UCP1. Therefore, decreased UCP1 levels and ATP production can ensue in DS subjects. Interestingly, children born with DS show elevated levels of CBS/CSE/3MST/Superoxide dismutase (SOD)/cystathionine/cysteine/H2S. We opine that increased levels of epigenetic gene writers (DNMTs) and decreased in gene erasers (TETs) activity cause folic acid exhaustion, leading to an increase in trans-sulphuration by CBS/CSE/3MST/SOD pathways. Thus, it is important to determine whether SIRT3 (inhibitor of HDAC3) can decrease the trans-sulfuration activity in DS patients. Since there is an increase in H3K4 and HDAC3 via epigenetics in DS, we propose that sirtuin-3 (Sirt3) may decrease H3K4 and HDAC3 and hence may be able to decrease the trans-sulfuration in DS. It would be worth to determine whether the lactobacillus, a folic acid producing probiotic, mitigates hyper-trans-sulphuration pathway in DS subjects. Further, as we know that in DS patients the folic acid is exhausted due to increase in CBS, Hcy and re-methylation. In this context, we suggest that folic acid producing probiotics such as lactobacillus might be able to improve re-methylation process and hence may help decrease the trans-sulfuration pathway in the DS patients.
Collapse
Affiliation(s)
- Sathnur Pushpakumar
- Department of Physiology, University of Louisville, Louisville, Kentucky, 40202, USA
| | - Mahavir Singh
- Department of Physiology, University of Louisville, Louisville, Kentucky, 40202, USA.
- School of Medicine, University of Louisville, Louisville, Kentucky, USA.
| | | | - N Tyagi
- Department of Physiology, University of Louisville, Louisville, Kentucky, 40202, USA
| | - Suresh C Tyagi
- Department of Physiology, University of Louisville, Louisville, Kentucky, 40202, USA
| |
Collapse
|
2
|
Smith JH, Singh M. Forensic DNA Profiling: Legal and Ethical Considerations. JSRR 2024; 30:141-144. [DOI: https:/doi.org/10.9734/jsrr/2024/v30i51929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
Forensic DNA analysis is vital in criminal investigations, posing intricate legal and ethical dilemmas. This emphasises the need to balance DNA technology benefits with individual rights, prioritizing privacy, consent, and ethical practices. Stringent regulation of DNA data management is essential to prevent misuse and ensure privacy protection. Advances like probabilistic genotyping software improve interpretation accuracy, addressing complexities in mixture analysis. Responsible DNA use also requires navigating emerging technologies like next-generation sequencing while upholding ethical standards. Establishing transparency, accuracy, and ethical conduct throughout the analysis process is crucial for building public trust. Regulatory oversight and accountability mechanisms are necessary to address errors and maintain fairness in DNA data management. Through continuous dialogue and adherence to ethical standards, the forensic community can uphold scientific integrity and preserve public confidence in DNA analysis.
Collapse
|
3
|
Kumar M, Kumar T, Jangir BL, Singh M, Arora D, Bangar Y, Conlan A, Vordermeier M, Bakker D, Byregowda SM, Srinivasan S, Kapur V, Jindal N. Comparative analysis of tuberculin and defined antigen skin tests for detection of bovine tuberculosis in buffaloes (Bubalus bubalis) in Haryana state, India. BMC Vet Res 2024; 20:65. [PMID: 38395846 DOI: 10.1186/s12917-024-03913-3] [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: 03/29/2023] [Accepted: 02/04/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Bovine tuberculosis (bTB) is a chronic disease that results from infection with any member of the Mycobacterium tuberculosis complex. Infected animals are typically diagnosed with tuberculin-based intradermal skin tests according to World Organization of Animal Health which are presently in use. However, tuberculin is not suitable for use in BCG-vaccinated animals due to a high rate of false-positive reactions. Peptide-based defined skin test (DST) antigens have been identified using antigens (ESAT-6, CFP-10 and Rv3615c) which are absent from BCG, but their performance in buffaloes remains unknown. To assess the comparative performance of DST with the tuberculin-based single intradermal test (SIT) and the single intradermal comparative cervical test (SICCT), we screened 543 female buffaloes from 49 organized dairy farms in two districts of Haryana state in India. RESULTS We found that 37 (7%), 4 (1%) and 18 (3%) buffaloes were reactors with the SIT, SICCT and DST tests, respectively. Of the 37 SIT reactors, four were positive with SICCT and 12 were positive with the DST. The results show that none of the animals tested positive with all three tests, and 6 DST positive animals were SIT negative. Together, a total of 43 animals were reactors with SIT, DST, or both, and the two assays showed moderate agreement (Cohen's Kappa 0.41; 95% Confidence Interval (CI): 0.23, 0.59). In contrast, only slight agreement (Cohen's Kappa 0.18; 95% CI: 0.02, 0.34) was observed between SIT and SICCT. Using a Bayesian latent class model, we estimated test specificities of 96.5% (95% CI, 92-99%), 99.7% (95% CI: 98-100%) and 99.0% (95% CI: 97-100%) for SIT, SICCT and DST, respectively, but considerably lower sensitivities of 58% (95% CI: 35-87%), 9% (95% CI: 3-21%), and 34% (95% CI: 18-55%) albeit with broad and overlapping credible intervals. CONCLUSION Taken together, our investigation suggests that DST has a test specificity comparable with SICCT, and sensitivity intermediate between SIT and SICCT for the identification of buffaloes suspected of tuberculosis. Our study highlights an urgent need for future well-powered trials with detailed necropsy, with immunological and microbiological profiling of reactor and non-reactor animals to better define the underlying factors for the large observed discrepancies in assay performance, particularly between SIT and SICCT.
Collapse
Affiliation(s)
- Mohit Kumar
- Department of Veterinary Public Health and Epidemiology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125 004, India
| | - Tarun Kumar
- Veterinary Clinical Complex, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125 004, India
| | - Babu Lal Jangir
- Department of Veterinary Pathology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125 004, India
| | - Mahavir Singh
- College Central Laboratory, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125 004, India
| | - Devan Arora
- Regional Centre at Karnal, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125 004, India
| | - Yogesh Bangar
- Department of Animal Genetics and Breeding, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125 004, India
| | - Andrew Conlan
- Disease Dynamics Unit, Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | | | - Douwe Bakker
- Technical Consultant and Independent Researcher, Lelystad, The Netherlands
| | - S M Byregowda
- Institute of Animal Health and Veterinary Biologicals, Bengaluru, India
| | - Sreenidhi Srinivasan
- Department of Animal Science, The Pennsylvania State University, University Park, PA, USA
- The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Vivek Kapur
- Department of Animal Science, The Pennsylvania State University, University Park, PA, USA
- The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Naresh Jindal
- Department of Veterinary Public Health and Epidemiology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, 125 004, India.
| |
Collapse
|
4
|
Kumar N, Taneja A, Ghosh M, Rothweiler U, Sundaresan N, Singh M. Harmonin homology domain-mediated interaction of RTEL1 helicase with RPA and DNA provides insights into its recruitment to DNA repair sites. Nucleic Acids Res 2024; 52:1450-1470. [PMID: 38153196 PMCID: PMC10853778 DOI: 10.1093/nar/gkad1208] [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: 11/03/2022] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/29/2023] Open
Abstract
The regulator of telomere elongation helicase 1 (RTEL1) plays roles in telomere DNA maintenance, DNA repair, and genome stability by dismantling D-loops and unwinding G-quadruplex structures. RTEL1 comprises a helicase domain, two tandem harmonin homology domains 1&2 (HHD1 and HHD2), and a Zn2+-binding RING domain. In vitro D-loop disassembly by RTEL1 is enhanced in the presence of replication protein A (RPA). However, the mechanism of RTEL1 recruitment at non-telomeric D-loops remains unknown. In this study, we have unravelled a direct physical interaction between RTEL1 and RPA. Under DNA damage conditions, we showed that RTEL1 and RPA colocalise in the cell. Coimmunoprecipitation showed that RTEL1 and RPA interact, and the deletion of HHDs of RTEL1 significantly reduced this interaction. NMR chemical shift perturbations (CSPs) showed that RPA uses its 32C domain to interact with the HHD2 of RTEL1. Interestingly, HHD2 also interacted with DNA in the in vitro experiments. HHD2 structure was determined using X-ray crystallography, and NMR CSPs mapping revealed that both RPA 32C and DNA competitively bind to HHD2 on an overlapping surface. These results establish novel roles of accessory HHDs in RTEL1's functions and provide mechanistic insights into the RPA-mediated recruitment of RTEL1 to DNA repair sites.
Collapse
Affiliation(s)
- Niranjan Kumar
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru 560012, India
| | - Arushi Taneja
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Meenakshi Ghosh
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru 560012, India
| | - Ulli Rothweiler
- The Norwegian Structural Biology Centre, Department of Chemistry, The Arctic University of Norway, N-9037, Tromsø, Norway
| | | | - Mahavir Singh
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru 560012, India
| |
Collapse
|
5
|
Tyagi SC, Pushpakumar S, Sen U, Akinterinwa OE, Zheng Y, Mokshagundam SPL, Kalra DK, Singh M. Role of circadian clock system in the mitochondrial trans-sulfuration pathway and tissue remodeling. Can J Physiol Pharmacol 2024; 102:105-115. [PMID: 37979203 DOI: 10.1139/cjpp-2023-0186] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2023]
Abstract
Previous studies from our laboratory revealed that the gaseous molecule hydrogen sulfide (H2S), a metabolic product of epigenetics, involves trans-sulfuration pathway for ensuring metabolism and clearance of homocysteine (Hcy) from body, thereby mitigating the skeletal muscle's pathological remodeling. Although the master circadian clock regulator that is known as brain and muscle aryl hydrocarbon receptor nuclear translocator like protein 1 (i.e., BMAL 1) is associated with S-adenosylhomocysteine hydrolase (SAHH) and Hcy metabolism but how trans-sulfuration pathway is influenced by the circadian clock remains unexplored. We hypothesize that alterations in the functioning of circadian clock during sleep and wake cycle affect skeletal muscle's biology. To test this hypothesis, we measured serum matrix metalloproteinase (MMP) activities using gelatin gels for analyzing the MMP-2 and MMP-9. Further, employing casein gels, we also studied MMP-13 that is known to be influenced by the growth arrest and DNA damage-45 (GADD45) protein during sleep and wake cycle. The wild type and cystathionine β synthase-deficient (CBS-/+) mice strains were treated with H2S and subjected to measurement of trans-sulfuration factors from skeletal muscle tissues. The results suggested highly robust activation of MMPs in the wake mice versus sleep mice, which appears somewhat akin to the "1-carbon metabolic dysregulation", which takes place during remodeling of extracellular matrix during muscular dystrophy. Interestingly, the levels of trans-sulfuration factors such as CBS, cystathionine γ lyase (CSE), methyl tetrahydrofolate reductase (MTHFR), phosphatidylethanolamine N-methyltransferase (PEMT), and Hcy-protein bound paraoxonase 1 (PON1) were attenuated in CBS-/+ mice. However, treatment with H2S mitigated the attenuation of the trans-sulfuration pathway. In addition, levels of mitochondrial peroxisome proliferator-activated receptor-gamma coactivator 1-α (PGC 1-α) and mitofusin-2 (MFN-2) were significantly improved by H2S intervention. Our findings suggest participation of the circadian clock in trans-sulfuration pathway that affects skeletal muscle remodeling and mitochondrial regeneration.
Collapse
Affiliation(s)
- Suresh C Tyagi
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Sathnur Pushpakumar
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Utpal Sen
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Oluwaseun E Akinterinwa
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Yuting Zheng
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Sri Prakash L Mokshagundam
- Division of Endocrinology, Metabolism and Diabetes and Robley Rex VA Medical Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Dinesh K Kalra
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Mahavir Singh
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| |
Collapse
|
6
|
Jena A, Grover N, Bhatia P, Singh M, Lad D, Prasad KK, Singh H, Dutta U, Sharma V. ITPA polymorphisms do not predict additional risk beyond TPMT and NUDT15 for thiopurine-induced cytopenia in inflammatory bowel disease. Rev Gastroenterol Mex (Engl Ed) 2024; 89:25-30. [PMID: 36707393 DOI: 10.1016/j.rgmxen.2021.11.017] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/24/2022] [Indexed: 01/26/2023]
Abstract
INTRODUCTION AND AIM Thiopurine-related leukopenia is associated with polymorphisms in the thiopurine methyltransferase (TPMT) and nucleoside diphosphate-linked moiety X type motif 15 (NUDT15) genes. However, those polymorphisms explain only a fraction of thiopurine-related leukopenia. Our aim was to study the role of an inosine triphosphate pyrophosphatase (ITPA) polymorphism in patients with inflammatory bowel disease (IBD) and thiopurine-related leukopenia that was unexplained by the TPMT and NUDT15 polymorphisms. MATERIAL AND METHODS We enrolled consecutive IBD patients on thiopurines (azathioprine or 6-mercaptopurine) from January 2019-March 2020, at a tertiary care center in North India. The presence of the ITPA (C.94C > A) polymorphism was evaluated in all patients, along with its association with thiopurine-related leukopenia. RESULTS Of the 33 patients (from a total of 119 patients) that developed leukopenia, 8 had the TPMT (n = 1) or NUDT15 (n = 7) polymorphism. Of the remaining 111 patients, their mean age was 36.36 ± 13.54 years and 57 (51.3%) were males. Twenty-five (21.01%) had unexplained leukopenia. The ITPA polymorphism was detected in 4 (16%) patients in the unexplained leukopenia group and 24 (27.9%) patients in the non-leukopenia group (p = 0.228). The odds ratio for predicting leukopenia with the ITPA polymorphism was 0.4921 (95% CI 0.1520-1.5830, p = 0.234). CONCLUSION The ITPA (C.94C > A) polymorphism was frequently detected in the study population but was not predictive for leukopenia in patients with IBD on thiopurine therapy.
Collapse
Affiliation(s)
- A Jena
- Departamento de Gastroenterología, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - N Grover
- Departamento de Medicina Interna, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - P Bhatia
- Departamento de Hemato-Oncología Pediátrica, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - M Singh
- Departamento de Hemato-Oncología Pediátrica, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - D Lad
- Departamento de Hematología Clínica, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - K K Prasad
- Departamento de Gastroenterología, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - H Singh
- Departamento de Gastroenterología Quirúrgica, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - U Dutta
- Departamento de Gastroenterología, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India
| | - V Sharma
- Departamento de Gastroenterología, Instituto de Posgrado de Educación e Investigación Médica, Chandigarh, India.
| |
Collapse
|
7
|
García-Bengoa M, Vergara EJ, Tran AC, Bossi L, Cooper AM, Pearl JE, Mussá T, von Köckritz-Blickwede M, Singh M, Reljic R. Immunogenicity of PE18, PE31, and PPE26 proteins from Mycobacterium tuberculosis in humans and mice. Front Immunol 2023; 14:1307429. [PMID: 38124744 PMCID: PMC10730732 DOI: 10.3389/fimmu.2023.1307429] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction The large family of PE and PPE proteins accounts for as much as 10% of the genome of Mycobacterium tuberculosis. In this study, we explored the immunogenicity of three proteins from this family, PE18, PE31, and PPE26, in humans and mice. Methods The investigation involved analyzing the immunoreactivity of the selected proteins using sera from TB patients, IGRA-positive household contacts, and IGRA-negative BCG vaccinated healthy donors from the TB endemic country Mozambique. Antigen-recall responses were examined in PBMC from these groups, including the evaluation of cellular responses in healthy unexposed individuals. Moreover, systemic priming and intranasal boosting with each protein, combined with the Quil-A adjuvant, were conducted in mice. Results We found that all three proteins are immunoreactive with sera from TB patients, IGRA-positive household contacts, and IGRA-negative BCG vaccinated healthy controls. Likewise, antigen-recall responses were induced in PBMC from all groups, and the proteins stimulated proliferation of peripheral blood mononuclear cells from healthy unexposed individuals. In mice, all three antigens induced IgG antibody responses in sera and predominantly IgG, rather than IgA, responses in bronchoalveolar lavage. Additionally, CD4+ and CD8+ effector memory T cell responses were observed in the spleen, with PE18 demonstrating the ability to induce tissue-resident memory T cells in the lungs. Discussion Having demonstrated immunogenicity in both humans and mice, the protective capacity of these antigens was evaluated by challenging immunized mice with low-dose aerosol of Mycobacterium tuberculosis H37Rv. The in vitro Mycobacterial Growth Inhibition Assay (MGIA) and assessment of viable bacteria in the lung did not demonstrate any ability of the vaccination protocol to reduce bacterial growth. We therefore concluded that these three specific PE/PPE proteins, while immunogenic in both humans and mice, were unable to confer protective immunity under these conditions.
Collapse
Affiliation(s)
- María García-Bengoa
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonosis (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Emil Joseph Vergara
- Institute for Infection and Immunity, St. George’s University of London, London, United Kingdom
| | - Andy C. Tran
- Institute for Infection and Immunity, St. George’s University of London, London, United Kingdom
| | - Lorenzo Bossi
- Immunxperts SA, a Q² Solutions Company, Gosselies, Belgium
| | - Andrea M. Cooper
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - John E. Pearl
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Tufária Mussá
- Department of Microbiology, Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique
| | - Maren von Köckritz-Blickwede
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonosis (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| | - Mahavir Singh
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Rajko Reljic
- Institute for Infection and Immunity, St. George’s University of London, London, United Kingdom
| |
Collapse
|
8
|
Singh M, Kumar J. Flourescence sensors for heavy metal detection: major contaminants in soil and water bodies. ANAL SCI 2023; 39:1829-1838. [PMID: 37531068 DOI: 10.1007/s44211-023-00392-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 06/28/2023] [Indexed: 08/03/2023]
Abstract
Due to the increasing consumption of heavy metals, there is a rising need for specific and useful methods that are employed for the detection of heavy metals. Fluorescence sensing is a highly selective, rapid and biosensing technique that is employed in the determination of some heavy metals in any sample of soil or water, any other living person, the food being consumed or any other substance which are being used daily. These fluorescent methods are a type of analytical technique and they are mainly based on detection. Many types of metal conjugated molecules have been used of the detection of these heavy metals with various mechanisms. We have taken into account some specific sensor molecules as they were more suitable and easily accessible. These techniques that were employed in the detection of various heavy metals such as copper, lead and mercury have been discussed in the following review article.
Collapse
Affiliation(s)
- M Singh
- Chandigarh University, Mohali, Punjab, 140413, India
| | - J Kumar
- Chandigarh University, Mohali, Punjab, 140413, India.
| |
Collapse
|
9
|
Singh M, Pushpakumar S, Zheng Y, Smolenkova I, Akinterinwa OE, Luulay B, Tyagi SC. Novel mechanism of the COVID-19 associated coagulopathy (CAC) and vascular thromboembolism. Npj Viruses 2023; 1:3. [PMID: 38077924 PMCID: PMC10710223 DOI: 10.1038/s44298-023-00003-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/20/2023] [Indexed: 01/31/2024]
Abstract
Previous studies from our laboratory revealed that SARS-CoV-2 spike protein (SP) administration to a genetically engineered model expressing the human angiotensin-converting enzyme 2; ACE2 receptor (i.e., hACE2 humanized mouse) mimicked the coronavirus disease-19 (COVID-19) pathology. In humans the cause of high morbidity, and mortality is due to 'cytokine-storm' led thromboembolism; however, the exact mechanisms of COVID-19 associated coagulopathy (CAC) have yet to be discovered. Current knowledge suggests that CAC is distinct from the standard coagulopathy, in that the intrinsic and extrinsic thrombin-dependent coagulation factors, and the pathway(s) that are common to coagulopathy, are not recruited by SARS-CoV-2. Findings from patients revealed that there is little change in their partial thromboplastin, or the prothrombin time coupled with a significant decline in platelets. Further, there appears to be an endothelial dysfunction during COVID-19 suggesting an interaction of the endothelia with immune cells including neutrophils. There are also reports that inflammatory NGAL is elevated during COVID-19. Furthermore, the levels of NPT are also increased indicating an increase in inflammatory M1 macrophage iNOS which sequesters BH4; an essential enzyme co-factor that acts as a potent antioxidant thus causing damage to endothelia. SARS-CoV-2 entry into the host cells is facilitated by a co-operative action between TMPRSS2 and the main ACE2 receptor. Interestingly, after infection ADAMTS13; a von Willebrand factor; VWF cleaving enzyme is found to be decreased. Based on these facts, we hypothesize that vascular thromboembolism is associated with serine and metalloproteinase, and in that context, we opine that inhibition of iNOS might help mitigate COVID-19 harmful effects. To test this hypothesis, we administered SP to the hACE2 mice that were subsequently treated with amino guanidine (AG; a potent inhibitor of glycoxidation, lipoxidation and oxidative vicious cycles). Our results revealed increase in TMPRSS2, and NGAL by SP but treatment with AG mitigated their levels. Similarly, levels of MMP-2, and -9 were increased; however, AG treatment normalized these levels. Our findings suggest that occurrence of CAC is influenced by TMPRSS2, ADAMTS13, NGAL and MMP- 2, and -9 factors, and an intervention with iNOS blocker helped mitigate the CAC condition in experimental settings.
Collapse
Affiliation(s)
- Mahavir Singh
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
- These authors contributed equally: Mahavir Singh, Sathnur Pushpakumar
| | - Sathnur Pushpakumar
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
- These authors contributed equally: Mahavir Singh, Sathnur Pushpakumar
| | - Yuting Zheng
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Irina Smolenkova
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Oluwaseun E. Akinterinwa
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Bana Luulay
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Suresh C. Tyagi
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA
| |
Collapse
|
10
|
White AD, Tran AC, Sibley L, Sarfas C, Morrison AL, Lawrence S, Dennis M, Clark S, Zadi S, Lanni F, Rayner E, Copland A, Hart P, Diogo GR, Paul MJ, Kim M, Gleeson F, Salguero FJ, Singh M, Stehr M, Cutting SM, Basile JI, Rottenberg ME, Williams A, Sharpe SA, Reljic R. Spore-FP1 tuberculosis mucosal vaccine candidate is highly protective in guinea pigs but fails to improve on BCG-conferred protection in non-human primates. Front Immunol 2023; 14:1246826. [PMID: 37881438 PMCID: PMC10594996 DOI: 10.3389/fimmu.2023.1246826] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 09/19/2023] [Indexed: 10/27/2023] Open
Abstract
Tuberculosis remains a major health threat globally and a more effective vaccine than the current Bacillus Calmette Guerin (BCG) is required, either to replace or boost it. The Spore-FP1 mucosal vaccine candidate is based on the fusion protein of Ag85B-Acr-HBHA/heparin-binding domain, adsorbed on the surface of inactivated Bacillus subtilis spores. The candidate conferred significant protection against Mycobacterium. tuberculosis challenge in naïve guinea pigs and markedly improved protection in the lungs and spleens of animals primed with BCG. We then immunized rhesus macaques with BCG intradermally, and subsequently boosted with one intradermal and one aerosol dose of Spore-FP1, prior to challenge with low dose aerosolized M. tuberculosis Erdman strain. Following vaccination, animals did not show any adverse reactions and displayed higher antigen specific cellular and antibody immune responses compared to BCG alone but this did not translate into significant improvement in disease pathology or bacterial burden in the organs.
Collapse
Affiliation(s)
- Andrew D. White
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Andy C. Tran
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Laura Sibley
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Charlotte Sarfas
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Alexandra L. Morrison
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Steve Lawrence
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Mike Dennis
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Simon Clark
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Sirine Zadi
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Faye Lanni
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Emma Rayner
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Alastair Copland
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Peter Hart
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Gil Reynolds Diogo
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Matthew J. Paul
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Miyoung Kim
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Fergus Gleeson
- Department of Oncology, The Churchill Hospital, Oxford, United Kingdom
| | - Francisco J. Salguero
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | | | | | - Simon M. Cutting
- School of Biological Sciences, Royal Holloway University of London, Surrey, United Kingdom
- Sporegen Ltd , London Bioscience Innovation Centre, London, United Kingdom
| | - Juan I. Basile
- Department of Microbiology, Tumour and Cell Biology and Centre for Tuberculosis Research, Karolinska Institute, Stockholm, Sweden
| | - Martin E. Rottenberg
- Department of Microbiology, Tumour and Cell Biology and Centre for Tuberculosis Research, Karolinska Institute, Stockholm, Sweden
| | - Ann Williams
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Sally A. Sharpe
- United Kingdom Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Rajko Reljic
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| |
Collapse
|
11
|
Kumari A, Singh M, Sharma R, Kumar T, Jindal N, Maan S, Joshi VG. Apoptin NLS2 homodimerization strategy for improved antibacterial activity and bio-stability. Amino Acids 2023; 55:1405-1416. [PMID: 37725185 DOI: 10.1007/s00726-023-03321-1] [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] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/21/2023] [Indexed: 09/21/2023]
Abstract
The emergence of antibiotic resistance prompts exploration of viable antimicrobial peptides (AMPs) designs. The present study explores the antimicrobial prospects of Apoptin nuclear localization sequence (NLS2)-derived peptide ANLP (PRPRTAKRRIRL). Further, we examined the utility of the NLS dimerization strategy for improvement in antimicrobial activity and sustained bio-stability of AMPs. Initially, the antimicrobial potential of ANLP using antimicrobial peptide databases was analyzed. Then, ANLP along with its two homodimer variants namely ANLP-K1 and ANLP-K2 were synthesized and evaluated for antimicrobial activity against Escherichia coli and Salmonella. Among three AMPs, ANLP-K2 showed efficient antibacterial activity with 12 µM minimum inhibitory concentration (MIC). Slow degradation of ANLP-K1 (26.48%) and ANLP-K2 (13.21%) compared with linear ANLP (52.33%) at 480 min in serum stability assay indicates improved bio-stability of dimeric peptides. The AMPs presented no cytotoxicity in Vero cells. Dye penetration assays confirmed the membrane interacting nature of AMPs. The zeta potential analysis reveals effective charge neutralization of both lipopolysaccharide (LPS) and bacterial cells by dimeric AMPs. The dimeric AMPs on scanning electron microscopy studies showed multiple pore formations on the bacterial surface. Collectively, proposed Lysine scaffold dimerization of Apoptin NLS2 strategy resulted in enhancing antibacterial activity, bio-stability, and could be effective in neutralizing the off-target effect of LPS. In conclusion, these results suggest that nuclear localization sequence with a modified dimeric approach could represent a rich source of template for designing future antimicrobial peptides.
Collapse
Affiliation(s)
- Anu Kumari
- Department of Animal Biotechnology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS), Hisar, Haryana, 125004, India
| | - Mahavir Singh
- College Central Laboratory, College of Veterinary Sciences, LUVAS, Hisar, Haryana, 125004, India
| | - Ruchi Sharma
- Department of Animal Biotechnology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS), Hisar, Haryana, 125004, India
| | - Tarun Kumar
- Veterinary Clinical Complex, College of Veterinary Sciences, LUVAS, Hisar, Haryana, 125004, India
| | - Naresh Jindal
- Department of Veterinary Public Health and Epidemiology, College of Veterinary Sciences, LUVAS, Hisar, Haryana, 125004, India
| | - Sushila Maan
- Department of Animal Biotechnology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS), Hisar, Haryana, 125004, India
| | - Vinay G Joshi
- Department of Animal Biotechnology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS), Hisar, Haryana, 125004, India.
| |
Collapse
|
12
|
Wang J, Vaddu S, Bhumanapalli S, Mishra A, Applegate T, Singh M, Thippareddi H. A systematic review and meta-analysis of the sources of Campylobacter in poultry production (preharvest) and their relative contributions to the microbial risk of poultry meat. Poult Sci 2023; 102:102905. [PMID: 37516002 PMCID: PMC10405099 DOI: 10.1016/j.psj.2023.102905] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/18/2023] [Accepted: 06/24/2023] [Indexed: 07/31/2023] Open
Abstract
A systematic review and meta-analysis were conducted to idetnify the relative contributions of the sources of Campylobacter in poultry live production to Campylobacter prevalence of broiler meat. The keywords of Campylobacter, prevalence, live production, and broiler were used in Google Scholar to address the research interest. A total of 16,800 citations were identified, and 63 relevant citations were included in the meta-analysis after applying predetermined inclusion and exclusion criteria. A generalized linear mixed model approach combined with logit transformation was used in the current meta-analysis to stabilize the variance. The analysis revealed that Campylobacter is ubiquitous in the poultry house exterior environment including surroundings, wildlife, domestic animals, and farm vehicle, with a predicted prevalence of 14%. The recovery of Campylobacter in the interior environment of the poultry house is far less abundant than in the exterior, with a prevalence of 2%, including litter, water, insects, mice, feed, and air. A lack of evidence was observed for vertical transmission due to the day-old chicks being free of Campylobacter from 4 studies identified. Live birds are the predominant carrier of Campylobacter, with a predicted prevalence of 41%. Transportation equipment used for live haul had an overall prevalence of 39%, with vehicles showing a predicted prevalence of 44% and crates with a predicted prevalence of 22%. The results of this meta-analysis highlight the need to implement effective biosecurity measures to minimize the risk of Campylobacter in poultry meat, as human activity appears to be the primary factor for Campylobacter introduction.
Collapse
Affiliation(s)
- J Wang
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - S Vaddu
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - S Bhumanapalli
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - A Mishra
- Department of Food Science and Technology, University of Georgia, Athens, GA 30602, USA
| | - T Applegate
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - M Singh
- Department of Food Science and Technology, University of Georgia, Athens, GA 30602, USA
| | - H Thippareddi
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
| |
Collapse
|
13
|
Murthy V, Maitre P, Singh M, Pal M, Arora A, Pujari L, Kapoor A, Pandey H, Sharma R, Gudipudi D, Joshi A, Prabhash K, Noronha V, Menon S, Mehta P, Bakshi G, Prakash G. Study Protocol of the Bladder Adjuvant RadioTherapy (BART) Trial: A Randomised Phase III Trial of Adjuvant Radiotherapy Following Cystectomy in Bladder Cancer. Clin Oncol (R Coll Radiol) 2023; 35:e506-e515. [PMID: 37208232 DOI: 10.1016/j.clon.2023.04.010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/10/2023] [Accepted: 04/28/2023] [Indexed: 05/21/2023]
Abstract
AIMS To assess the efficacy and safety of adjuvant radiotherapy in patients with high-risk muscle-invasive bladder cancer (MIBC) following radical cystectomy (RC) and chemotherapy. MATERIALS AND METHODS The BART (Bladder Adjuvant RadioTherapy) trial is an ongoing multicentric, randomised, phase III trial comparing the efficacy and safety of adjuvant radiotherapy versus observation in patients with high-risk MIBC. The key eligibility criteria include ≥pT3, node-positive (pN+), positive margins and/or nodal yield <10, or, neoadjuvant chemotherapy for cT3/T4/N+ disease. In total, 153 patients will be accrued and randomised, in a 1:1 ratio, to either observation (standard arm) or adjuvant radiotherapy (test arm) following surgery and chemotherapy. Stratification parameters include nodal status (N+ versus N0) and chemotherapy (neoadjuvant chemotherapy versus adjuvant chemotherapy versus no chemotherapy). For patients in the test arm, adjuvant radiotherapy to cystectomy bed and pelvic nodes is planned with intensity-modulated radiotherapy to a dose of 50.4 Gy in 28 fractions using daily image guidance. All patients will follow-up with 3-monthly clinical review and urine cytology for 2 years and subsequently 6 monthly until 5 years, with contrast-enhanced computed tomography abdomen pelvis 6 monthly for 2 years and annually until 5 years. Physician-scored toxicity using Common Terminology Criteria for Adverse Events version 5.0 and patient-reported quality of life using the Functional Assessment of Cancer Therapy - Colorectal questionnaire is recorded pre-treatment and at follow-up. ENDPOINTS AND STATISTICS The primary endpoint is 2-year locoregional recurrence-free survival. The sample size calculation was based on the estimated improvement in 2-year locoregional recurrence-free survival from 70% in the standard arm to 85% in the test arm (hazard ratio 0.45) using 80% statistical power and a two-sided alpha error of 0.05. Secondary endpoints include disease-free survival, overall survival, acute and late toxicity, patterns of failure and quality of life. CONCLUSION The BART trial aims to evaluate whether contemporary radiotherapy after standard-of-care surgery and chemotherapy reduces pelvic recurrences safely and also potentially affects survival in high-risk MIBC.
Collapse
Affiliation(s)
- V Murthy
- Department of Radiation Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India.
| | - P Maitre
- Department of Radiation Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - M Singh
- Department of Radiation Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - M Pal
- Department of Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - A Arora
- Department of Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - L Pujari
- Department of Radiation Oncology, HBCH & MPMMMC, Varanasi, India
| | - A Kapoor
- Department of Medical Oncology, HBCH & MPMMMC, Varanasi, India
| | - H Pandey
- Department of Surgical Oncology, HBCH & MPMMMC, Varanasi, India
| | - R Sharma
- Department of Uro-Oncology, Basavatarakam Indo-American Cancer Hospital and Research Institute, Hyderabad, India
| | - D Gudipudi
- Department of Uro-Oncology, Basavatarakam Indo-American Cancer Hospital and Research Institute, Hyderabad, India
| | - A Joshi
- Department of Medical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - K Prabhash
- Department of Medical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - V Noronha
- Department of Medical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - S Menon
- Department of Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - P Mehta
- Department of Radiation Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - G Bakshi
- Department of Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - G Prakash
- Department of Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| |
Collapse
|
14
|
Shee S, Veetil RT, Mohanraj K, Das M, Malhotra N, Bandopadhyay D, Beig H, Birua S, Niphadkar S, Nagarajan SN, Sinha VK, Thakur C, Rajmani RS, Chandra N, Laxman S, Singh M, Samal A, Seshasayee AN, Singh A. Biosensor-integrated transposon mutagenesis reveals rv0158 as a coordinator of redox homeostasis in Mycobacterium tuberculosis. eLife 2023; 12:e80218. [PMID: 37642294 PMCID: PMC10501769 DOI: 10.7554/elife.80218] [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: 05/12/2022] [Accepted: 08/25/2023] [Indexed: 08/31/2023] Open
Abstract
Mycobacterium tuberculosis (Mtb) is evolutionarily equipped to resist exogenous reactive oxygen species (ROS) but shows vulnerability to an increase in endogenous ROS (eROS). Since eROS is an unavoidable consequence of aerobic metabolism, understanding how Mtb manages eROS levels is essential yet needs to be characterized. By combining the Mrx1-roGFP2 redox biosensor with transposon mutagenesis, we identified 368 genes (redoxosome) responsible for maintaining homeostatic levels of eROS in Mtb. Integrating redoxosome with a global network of transcriptional regulators revealed a hypothetical protein (Rv0158) as a critical node managing eROS in Mtb. Disruption of rv0158 (rv0158 KO) impaired growth, redox balance, respiration, and metabolism of Mtb on glucose but not on fatty acids. Importantly, rv0158 KO exhibited enhanced growth on propionate, and the Rv0158 protein directly binds to methylmalonyl-CoA, a key intermediate in propionate catabolism. Metabolite profiling, ChIP-Seq, and gene-expression analyses indicate that Rv0158 manages metabolic neutralization of propionate toxicity by regulating the methylcitrate cycle. Disruption of rv0158 enhanced the sensitivity of Mtb to oxidative stress, nitric oxide, and anti-TB drugs. Lastly, rv0158 KO showed poor survival in macrophages and persistence defect in mice. Our results suggest that Rv0158 is a metabolic integrator for carbon metabolism and redox balance in Mtb.
Collapse
Affiliation(s)
- Somnath Shee
- Department of Microbiology and Cell Biology, Indian Institute of Science BangaloreBangaloreIndia
- Centre for Infectious Disease Research, Indian Institute of Science BangaloreKarnatakaIndia
| | | | - Karthikeyan Mohanraj
- The Institute of Mathematical Sciences, A CI of Homi Bhabha National InstituteChennaiIndia
| | - Mayashree Das
- Department of Microbiology and Cell Biology, Indian Institute of Science BangaloreBangaloreIndia
- Centre for Infectious Disease Research, Indian Institute of Science BangaloreKarnatakaIndia
| | | | | | - Hussain Beig
- Department of Microbiology and Cell Biology, Indian Institute of Science BangaloreBangaloreIndia
- Centre for Infectious Disease Research, Indian Institute of Science BangaloreKarnatakaIndia
| | - Shalini Birua
- Department of Microbiology and Cell Biology, Indian Institute of Science BangaloreBangaloreIndia
- Centre for Infectious Disease Research, Indian Institute of Science BangaloreKarnatakaIndia
| | - Shreyas Niphadkar
- Institute for Stem Cell Science and Regenerative MedicineBangaloreIndia
| | - Sathya Narayanan Nagarajan
- Department of Microbiology and Cell Biology, Indian Institute of Science BangaloreBangaloreIndia
- Centre for Infectious Disease Research, Indian Institute of Science BangaloreKarnatakaIndia
| | - Vikrant Kumar Sinha
- Molecular Biophysics Unit, Indian Institute of Science BangaloreBangaloreIndia
| | - Chandrani Thakur
- Department of Biochemistry, Indian Institute of Science BangaloreBangaloreIndia
| | - Raju S Rajmani
- Centre for Infectious Disease Research, Indian Institute of Science BangaloreKarnatakaIndia
| | - Nagasuma Chandra
- Department of Biochemistry, Indian Institute of Science BangaloreBangaloreIndia
| | - Sunil Laxman
- Institute for Stem Cell Science and Regenerative MedicineBangaloreIndia
| | - Mahavir Singh
- Molecular Biophysics Unit, Indian Institute of Science BangaloreBangaloreIndia
| | - Areejit Samal
- The Institute of Mathematical Sciences, A CI of Homi Bhabha National InstituteChennaiIndia
| | | | - Amit Singh
- Department of Microbiology and Cell Biology, Indian Institute of Science BangaloreBangaloreIndia
- Centre for Infectious Disease Research, Indian Institute of Science BangaloreKarnatakaIndia
| |
Collapse
|
15
|
García-Bengoa M, Meurer M, Stehr M, Elamin AA, Singh M, Oehlmann W, Mörgelin M, von Köckritz-Blickwede M. Mycobacterium tuberculosis PE/PPE proteins enhance the production of reactive oxygen species and formation of neutrophil extracellular traps. Front Immunol 2023; 14:1206529. [PMID: 37675111 PMCID: PMC10478095 DOI: 10.3389/fimmu.2023.1206529] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/27/2023] [Indexed: 09/08/2023] Open
Abstract
Introduction Neutrophil granulocytes predominate in the lungs of patients infected with Mycobacterium tuberculosis (Mtb) in earlier stages of the disease. During infection, neutrophils release neutrophil extracellular traps (NETs), an antimicrobial mechanism by which a DNA-backbone spiked with antimicrobial components traps the mycobacteria. However, the specific mycobacterial factors driving NET formation remain unclear. Proteins from the proline-glutamic acid (PE)/proline-proline-glutamic acid (PPE) family are critical to Mtb pathophysiology and virulence. Methods Here, we investigated NET induction by PE18, PPE26, and PE31 in primary human blood-derived neutrophils. Neutrophils were stimulated with the respective proteins for 3h, and NET formation was subsequently assessed using confocal fluorescence microscopy. Intracellular ROS levels and cell necrosis were estimated by flow cytometry. Additionally, the influence of phorbol-12-myristate-13-acetate (PMA), a known NADPH oxidase enhancer, on NET formation was examined. Neutrophil integrity following incubation with the PE/PPE proteins was evaluated using transmission electron microscopy. Results For the first time, we report that stimulation of primary human blood-derived neutrophils with Mtb proteins PE18, PPE26, and PE31 resulted in the formation of NETs, which correlated with an increase in intracellular ROS levels. Notably, the presence of PMA further amplified this effect. Following incubation with the PE/PPE proteins, neutrophils were found to remain viable and structurally intact, as verified through transmission electron microscopy, indicating the occurrence of vital NET formation. Discussion These findings offer valuable insights that contribute to a better understanding of host-pathogen interactions during Mtb infection. Moreover, they underscore the significance of these particular Mtb antigens in triggering NET formation, representing a distinctive and previously unrecognized function of PE/PPE antigens.
Collapse
Affiliation(s)
- María García-Bengoa
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonosis (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Marita Meurer
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonosis (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| | - Matthias Stehr
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | | | - Mahavir Singh
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | | | | | - Maren von Köckritz-Blickwede
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonosis (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
16
|
Xu ZY, Madurga M, Grzywacz R, King TT, Algora A, Andreyev AN, Benito J, Berry T, Borge MJG, Costache C, De Witte H, Fijalkowska A, Fraile LM, Fynbo HOU, Gottardo A, Halverson C, Harkness-Brennan LJ, Heideman J, Huyse M, Illana A, Janiak Ł, Judson DS, Korgul A, Kurtukian-Nieto T, Lazarus I, Lică R, Lozeva R, Marginean N, Marginean R, Mazzocchi C, Mihai C, Mihai RE, Morales AI, Page RD, Pakarinen J, Piersa-Siłkowska M, Podolyák Z, Sarriguren P, Singh M, Sotty C, Stepaniuk M, Tengblad O, Turturica A, Van Duppen P, Vedia V, Viñals S, Warr N, Yokoyama R, Yuan CX. ^{133}In: A Rosetta Stone for Decays of r-Process Nuclei. Phys Rev Lett 2023; 131:022501. [PMID: 37505957 DOI: 10.1103/physrevlett.131.022501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 04/25/2023] [Accepted: 06/14/2023] [Indexed: 07/30/2023]
Abstract
The β decays from both the ground state and a long-lived isomer of ^{133}In were studied at the ISOLDE Decay Station (IDS). With a hybrid detection system sensitive to β, γ, and neutron spectroscopy, the comparative partial half-lives (logft) have been measured for all their dominant β-decay channels for the first time, including a low-energy Gamow-Teller transition and several first-forbidden (FF) transitions. Uniquely for such a heavy neutron-rich nucleus, their β decays selectively populate only a few isolated neutron unbound states in ^{133}Sn. Precise energy and branching-ratio measurements of those resonances allow us to benchmark β-decay theories at an unprecedented level in this region of the nuclear chart. The results show good agreement with the newly developed large-scale shell model (LSSM) calculations. The experimental findings establish an archetype for the β decay of neutron-rich nuclei southeast of ^{132}Sn and will serve as a guide for future theoretical development aiming to describe accurately the key β decays in the rapid-neutron capture (r-) process.
Collapse
Affiliation(s)
- Z Y Xu
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - M Madurga
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - R Grzywacz
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - T T King
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - A Algora
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
- Institute of Nuclear Research (ATOMKI), P. O. Box 51, H-4001 Debrecen, Hungary
| | - A N Andreyev
- School of Physics, Engineering and Technology, University of York, North Yorkshire YO10 5DD, United Kingdom
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - J Benito
- Grupo de Física Nuclear and IPARCOS, Facultad de CC. Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131, Padova, Italy
- Dipartimento di Fisica e Astronomia, Università di Padova, I-35131 Padova, Italy
| | - T Berry
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - M J G Borge
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - C Costache
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - H De Witte
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - A Fijalkowska
- Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903, USA
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
| | - L M Fraile
- Grupo de Física Nuclear and IPARCOS, Facultad de CC. Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - H O U Fynbo
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - A Gottardo
- IPN, IN2P3-CNRS, Université Paris-Sud, Université Paris Saclay, 91406 Orsay Cedex, France
| | - C Halverson
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - L J Harkness-Brennan
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - J Heideman
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - M Huyse
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - A Illana
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
- University of Jyväskylä, Department of Physics, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - Ł Janiak
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
- National Centre for Nuclear Research, 05-400 Otwock, świerk, Poland
| | - D S Judson
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - A Korgul
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
| | - T Kurtukian-Nieto
- CENBG, Université de Bordeaux-UMR 5797 CNRS/IN2P3, Chemin du Solarium, 33175 Gradignan, France
| | - I Lazarus
- STFC Daresbury, Daresbury, Warrington WA4 4AD, United Kingdom
| | - R Lică
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
- ISOLDE, EP Department, CERN, CH-1211 Geneva, Switzerland
| | - R Lozeva
- Université Paris-Saclay, IJCLab, CNRS/IN2P3, F-91405 Orsay, France
| | - N Marginean
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R Marginean
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - C Mazzocchi
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
| | - C Mihai
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R E Mihai
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - A I Morales
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
| | - R D Page
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - J Pakarinen
- University of Jyväskylä, Department of Physics, P.O. Box 35, FI-40014 Jyväskylä, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki, Finland
| | - M Piersa-Siłkowska
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
- ISOLDE, EP Department, CERN, CH-1211 Geneva, Switzerland
| | - Zs Podolyák
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - P Sarriguren
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - M Singh
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - Ch Sotty
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - M Stepaniuk
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
| | - O Tengblad
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - A Turturica
- Horia Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - P Van Duppen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - V Vedia
- Grupo de Física Nuclear and IPARCOS, Facultad de CC. Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - S Viñals
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - N Warr
- Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
| | - R Yokoyama
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - C X Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai, 519082, Guangdong, China
| |
Collapse
|
17
|
García-Bengoa M, Meurer M, Goethe R, Singh M, Reljic R, von Köckritz-Blickwede M. Role of phagocyte extracellular traps during Mycobacterium tuberculosis infections and tuberculosis disease processes. Front Microbiol 2023; 14:983299. [PMID: 37492257 PMCID: PMC10365110 DOI: 10.3389/fmicb.2023.983299] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 06/19/2023] [Indexed: 07/27/2023] Open
Abstract
Mycobacterium tuberculosis (M.tb) infections remain one of the most significant causes of mortality worldwide. The current situation shows an emergence of new antibiotic-resistant strains making it difficult to control the tuberculosis (TB) disease. A large part of its success as a pathogen is due to its ability to persist for years or even decades without causing evident clinical manifestations. M.tb is highly successful in evading the host-defense by manipulating host-signalling pathways. Although macrophages are generally viewed as the key cell type involved in harboring M.tb, growing evidence shows that neutrophils also play a fundamental role. Both cells are known to act in multiple ways when encountering an invading pathogen, including phagocytosis, release of cytokines and chemokines, and oxidative burst. In addition, the formation of neutrophil extracellular traps (NETs) and macrophage extracellular traps (METs) has been described to contribute to M.tb infections. NETs/METs are extracellular DNA fibers with associated granule components, which are released upon activation of the cells by the pathogen or by pro-inflammatory mediators. On one hand, they can lead to a protective immune response by entrapment and killing of pathogens. However, on the other hand, they can also play a severe pathological role by inducing tissue damage. Extracellular traps (ETs) produced in the pulmonary alveoli can expand easily and expose tissue-damaging factors with detrimental effects. Since host-directed therapies offer a complementary strategy in TB, the knowledge of NET/MET formation is important for understanding potential protective versus detrimental pathways during innate immune signaling. In this review, we summarize the progress made in understanding the role of NETs/METs in the pathogenesis of TB.
Collapse
Affiliation(s)
- María García-Bengoa
- Institute for Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Marita Meurer
- Institute for Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ralph Goethe
- Institute for Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Mahavir Singh
- LIONEX Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Rajko Reljic
- Institute for Infection and Immunity, St George’s University of London, London, United Kingdom
| | - Maren von Köckritz-Blickwede
- Institute for Biochemistry, University of Veterinary Medicine Hannover, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
18
|
Manikandan P, Nadig K, Singh M. Large-scale Purification of Type III Toxin-antitoxin Ribonucleoprotein Complex and its Components from Escherichia coli for Biophysical Studies. Bio Protoc 2023; 13:e4763. [PMID: 37456336 PMCID: PMC10338634 DOI: 10.21769/bioprotoc.4763] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/25/2023] [Accepted: 05/31/2023] [Indexed: 07/18/2023] Open
Abstract
Toxin-antitoxin (TA) systems are widespread bacterial immune systems that confer protection against various environmental stresses. TA systems have been classified into eight types (I-VIII) based on the nature and mechanism of action of the antitoxin. Type III TA systems consist of a noncoding RNA antitoxin and a protein toxin, forming a ribonucleoprotein (RNP) TA complex that plays crucial roles in phage defence in bacteria. Type III TA systems are present in the human gut microbiome and several pathogenic bacteria and, therefore, could be exploited for a novel antibacterial strategy. Due to the inherent toxicity of the toxin for E. coli, it is challenging to overexpress and purify free toxins from E. coli expression systems. Therefore, protein toxin is typically co-expressed and co-purified with antitoxin RNA as an RNP complex from E. coli for structural and biophysical studies. Here, we have optimized the co-expression and purification method for ToxIN type III TA complexes from E. coli that results in the purification of TA RNP complex and, often, free antitoxin RNA and free active toxin in quantities required for the biophysical and structural studies. This protocol can also be adapted to purify isotopically labelled (e.g., uniformly 15N- or 13C-labelled) free toxin proteins, free antitoxin RNAs, and TA RNPs, which can be studied using multidimensional nuclear magnetic resonance (NMR) spectroscopy methods. Key features Detailed protocol for the large-scale purification of ToxIN type III toxin-antitoxin complexes from E. coli. The optimized protocol results in obtaining milligrams of TA RNP complex, free toxin, and free antitoxin RNA. Commercially available plasmid vectors and chemicals are used to complete the protocol in five days after obtaining the required DNA clones. The purified TA complex, toxin protein, and antitoxin RNA are used for biophysical experiments such as NMR, ITC, and X-ray crystallography.
Collapse
Affiliation(s)
| | - Kavyashree Nadig
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru, 560012, India
| | - Mahavir Singh
- Molecular Biophysics Unit, Indian Institute of Science, Bengaluru, 560012, India
| |
Collapse
|
19
|
Gray TJ, Allmond JM, Xu Z, King TT, Lubna RS, Crawford HL, Tripathi V, Crider BP, Grzywacz R, Liddick SN, Macchiavelli AO, Miyagi T, Poves A, Andalib A, Argo E, Benetti C, Bhattacharya S, Campbell CM, Carpenter MP, Chan J, Chester A, Christie J, Clark BR, Cox I, Doetsch AA, Dopfer J, Duarte JG, Fallon P, Frotscher A, Gaballah T, Harke JT, Heideman J, Huegen H, Holt JD, Jain R, Kitamura N, Kolos K, Kondev FG, Laminack A, Longfellow B, Luitel S, Madurga M, Mahajan R, Mogannam MJ, Morse C, Neupane S, Nowicki A, Ogunbeku TH, Ong WJ, Porzio C, Prokop CJ, Rasco BC, Ronning EK, Rubino E, Ruland TJ, Rykaczewski KP, Schaedig L, Seweryniak D, Siegl K, Singh M, Stuchbery AE, Tabor SL, Tang TL, Wheeler T, Winger JA, Wood JL. Microsecond Isomer at the N=20 Island of Shape Inversion Observed at FRIB. Phys Rev Lett 2023; 130:242501. [PMID: 37390416 DOI: 10.1103/physrevlett.130.242501] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/26/2023] [Indexed: 07/02/2023]
Abstract
Excited-state spectroscopy from the first experiment at the Facility for Rare Isotope Beams (FRIB) is reported. A 24(2)-μs isomer was observed with the FRIB Decay Station initiator (FDSi) through a cascade of 224- and 401-keV γ rays in coincidence with ^{32}Na nuclei. This is the only known microsecond isomer (1 μs≤T_{1/2}<1 ms) in the region. This nucleus is at the heart of the N=20 island of shape inversion and is at the crossroads of the spherical shell-model, deformed shell-model, and ab initio theories. It can be represented as the coupling of a proton hole and neutron particle to ^{32}Mg, ^{32}Mg+π^{-1}+ν^{+1}. This odd-odd coupling and isomer formation provides a sensitive measure of the underlying shape degrees of freedom of ^{32}Mg, where the onset of spherical-to-deformed shape inversion begins with a low-lying deformed 2^{+} state at 885 keV and a low-lying shape-coexisting 0_{2}^{+} state at 1058 keV. We suggest two possible explanations for the 625-keV isomer in ^{32}Na: a 6^{-} spherical shape isomer that decays by E2 or a 0^{+} deformed spin isomer that decays by M2. The present results and calculations are most consistent with the latter, indicating that the low-lying states are dominated by deformation.
Collapse
Affiliation(s)
- T J Gray
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - J M Allmond
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Z Xu
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - T T King
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - R S Lubna
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - H L Crawford
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - V Tripathi
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - B P Crider
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Grzywacz
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - S N Liddick
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - A O Macchiavelli
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - T Miyagi
- Department of Physics, Technische Universität Darmstadt, Darmstadt, Germany
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - A Poves
- Departamento de Fìsica Teórica and IFT-UAM/CSIC, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - A Andalib
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - E Argo
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Benetti
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - S Bhattacharya
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - C M Campbell
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M P Carpenter
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Chan
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - A Chester
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Christie
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - B R Clark
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - I Cox
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - A A Doetsch
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Dopfer
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J G Duarte
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P Fallon
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Frotscher
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - T Gaballah
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - J T Harke
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J Heideman
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - H Huegen
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - J D Holt
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, McGill University, Montréal, Quebec City H3A 2T8, Canada
| | - R Jain
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - N Kitamura
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - K Kolos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - F G Kondev
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Laminack
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - B Longfellow
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Luitel
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - M Madurga
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - R Mahajan
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - M J Mogannam
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Morse
- National Nuclear Data Center, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - S Neupane
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - A Nowicki
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - T H Ogunbeku
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - W-J Ong
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C Porzio
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C J Prokop
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - B C Rasco
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - E K Ronning
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - E Rubino
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - T J Ruland
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - K P Rykaczewski
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - L Schaedig
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Seweryniak
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - K Siegl
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - M Singh
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - A E Stuchbery
- Department of Nuclear Physics and Accelerator Applications, Research School of Physics, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - S L Tabor
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - T L Tang
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - T Wheeler
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J A Winger
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - J L Wood
- School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA
| |
Collapse
|
20
|
Wang Y, He Y, Wang Y, Yang Y, Singh M, Eichhorn CD, Cheng X, Jiang YX, Zhou ZH, Feigon J. Structure of LARP7 Protein p65-telomerase RNA Complex in Telomerase Revealed by Cryo-EM and NMR. J Mol Biol 2023; 435:168044. [PMID: 37330293 PMCID: PMC10988774 DOI: 10.1016/j.jmb.2023.168044] [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: 01/25/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 06/19/2023]
Abstract
La-related protein 7 (LARP7) are a family of RNA chaperones that protect the 3'-end of RNA and are components of specific ribonucleoprotein complexes (RNP). In Tetrahymena thermophila telomerase, LARP7 protein p65 together with telomerase reverse transcriptase (TERT) and telomerase RNA (TER) form the core RNP. p65 has four known domains-N-terminal domain (NTD), La motif (LaM), RNA recognition motif 1 (RRM1), and C-terminal xRRM2. To date, only the xRRM2 and LaM and their interactions with TER have been structurally characterized. Conformational dynamics leading to low resolution in cryo-EM density maps have limited our understanding of how full-length p65 specifically recognizes and remodels TER for telomerase assembly. Here, we combined focused classification of Tetrahymena telomerase cryo-EM maps with NMR spectroscopy to determine the structure of p65-TER. Three previously unknown helices are identified, one in the otherwise intrinsically disordered NTD that binds the La module, one that extends RRM1, and another preceding xRRM2, that stabilize p65-TER interactions. The extended La module (αN, LaM and RRM1) interacts with the four 3' terminal U nucleotides, while LaM and αN additionally interact with TER pseudoknot, and LaM with stem 1 and 5' end. Our results reveal the extensive p65-TER interactions that promote TER 3'-end protection, TER folding, and core RNP assembly and stabilization. The structure of full-length p65 with TER also sheds light on the biological roles of genuine La and LARP7 proteins as RNA chaperones and core RNP components.
Collapse
Affiliation(s)
- Yaqiang Wang
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Yao He
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA; Department of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Yanjiao Wang
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Yuan Yang
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Mahavir Singh
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Catherine D Eichhorn
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Xinyi Cheng
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Yi Xiao Jiang
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Z Hong Zhou
- Department of Microbiology, Immunology, and Molecular Genetics, University of California Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Juli Feigon
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA.
| |
Collapse
|
21
|
Im SA, Gennari A, Park YH, Kim JH, Jiang ZF, Gupta S, Fadjari TH, Tamura K, Mastura MY, Abesamis-Tiambeng MLT, Lim EH, Lin CH, Sookprasert A, Parinyanitikul N, Tseng LM, Lee SC, Caguioa P, Singh M, Naito Y, Hukom RA, Smruti BK, Wang SS, Kim SB, Lee KH, Ahn HK, Peters S, Kim TW, Yoshino T, Pentheroudakis G, Curigliano G, Harbeck N. Pan-Asian adapted ESMO Clinical Practice Guidelines for the diagnosis, staging and treatment of patients with metastatic breast cancer. ESMO Open 2023; 8:101541. [PMID: 37178669 PMCID: PMC10186487 DOI: 10.1016/j.esmoop.2023.101541] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 03/27/2023] [Accepted: 04/01/2023] [Indexed: 05/15/2023] Open
Abstract
The most recent version of the European Society for Medical Oncology (ESMO) Clinical Practice Guidelines for the diagnosis, staging and treatment of patients with metastatic breast cancer (MBC) was published in 2021. A special, hybrid guidelines meeting was convened by ESMO and the Korean Society of Medical Oncology (KSMO) in collaboration with nine other Asian national oncology societies in May 2022 in order to adapt the ESMO 2021 guidelines to take into account the differences associated with the treatment of MBC in Asia. These guidelines represent the consensus opinions reached by a panel of Asian experts in the treatment of patients with MBC representing the oncological societies of China (CSCO), India (ISMPO), Indonesia (ISHMO), Japan (JSMO), Korea (KSMO), Malaysia (MOS), the Philippines (PSMO), Singapore (SSO), Taiwan (TOS) and Thailand (TSCO). The voting was based on the best available scientific evidence and was independent of drug access or practice restrictions in the different Asian countries. The latter were discussed when appropriate. The aim of these guidelines is to provide guidance for the harmonisation of the management of patients with MBC across the different regions of Asia, drawing from data provided by global and Asian trials whilst at the same time integrating the differences in genetics, demographics and scientific evidence, together with restricted access to certain therapeutic strategies.
Collapse
Affiliation(s)
- S-A Im
- Department of Internal Medicine, Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea.
| | - A Gennari
- Department of Translational Medicine, University Piemonte Orientale, Novara, Italy
| | - Y H Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J H Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Z-F Jiang
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - S Gupta
- Tata Memorial Centre and Homi Bhabha National Institute, Mumbai, India
| | - T H Fadjari
- Department of Internal Medicine, Hasan Sadikin General Hospital, Bandung, Indonesia
| | - K Tamura
- Department of Medical Oncology, Shimane University Hospital, Shimane, Japan
| | - M Y Mastura
- Cancer Centre, Pantai Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - M L T Abesamis-Tiambeng
- Section of Medical Oncology, Department of Internal Medicine, Cardinal Santos Cancer Center, San Juan, The Philippines
| | - E H Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - C-H Lin
- Department of Medical Oncology, National Taiwan University Hospital, Cancer Center Branch, Taipei, Taiwan
| | - A Sookprasert
- Department of Internal Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - N Parinyanitikul
- Medical Oncology Unit, Department of Medicine, Faculty of Medicine, King Chulalongkorn Memorial Hospital and Chulalongkorn University, Bangkok, Thailand
| | - L-M Tseng
- Taipei-Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - S-C Lee
- Department of Haematology-Oncology, National University Cancer Institute, Singapore (NCIS), Singapore, Singapore
| | - P Caguioa
- The Cancer Institute of St Luke's Medical Center, National Capital Region, The Philippines; The Cancer Institute of the University of Santo Tomas Hospital, National Capital Region, The Philippines
| | - M Singh
- Department of Radiotherapy, Pantai Cancer Institute, Pantai Hospital Kuala Lumpur, Kuala Lumpur, Malaysia; Department of Oncology, Pantai Cancer Institute, Pantai Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Y Naito
- Department of General Internal Medicine, National Cancer Center Hospital East, Kashiwa, Japan
| | - R A Hukom
- Department of Hematology and Medical Oncology, Dharmais Hospital (National Cancer Center), Jakarta, Indonesia
| | - B K Smruti
- Medical Oncology, Lilavati Hospital and Research Centre and Bombay Hospital Institute of Medical Sciences, Mumbai, India
| | - S-S Wang
- Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - S B Kim
- Department of Oncology, Asan Medical Centre, Seoul, Republic of Korea
| | - K-H Lee
- Department of Internal Medicine, Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - H K Ahn
- Division of Medical Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - S Peters
- Oncology Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - T W Kim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - T Yoshino
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | | | - G Curigliano
- Istituto Europeo di Oncologia, IRCCS, Milan, Italy; Department of Oncology and Haematology, University of Milano, Milan, Italy
| | - N Harbeck
- Breast Center, Department of Obstetrics and Gynaecology and Comprehensive Cancer Center Munich, LMU University Hospital, Munich, Germany
| |
Collapse
|
22
|
Verma KK, Singh M, Narwaria US, Joshi HC, Patel BHM. Heat ameliorative measures in Murrah buffalo (Bubalus bubalis) heifers during summer: effect on microclimate, thermal comfort, and behavior. Int J Biometeorol 2023; 67:1063-1076. [PMID: 37119318 DOI: 10.1007/s00484-023-02479-3] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 03/17/2023] [Accepted: 04/15/2023] [Indexed: 06/15/2023]
Abstract
Water buffalo (Bubalus bubalis) is the mainstay of milk production in Asian countries including India. However, the hot climate of the country remains the biggest bottleneck to exploit the potential of this species. Therefore, a study was conducted to assess the effect of heat ameliorative measures on microclimate, thermal comfort, and behavior of Murrah buffalo heifers during summer. Buffalo heifers (n = 24) between the age of 15 and 20 months with a mean body weight of 363.75 ± 11.27 kg were randomly grouped into four treatments based on their age and body weight. The heifers kept in the shed without any cooling served as CON (control), while the animals of group CJ were tied with a cooling jacket. The buffalo heifers of the CJF group were subjected to the cooling jacket with forced air ventilation, whereas the intermittent (10 min at 2-h intervals) sprinkling followed by forced air ventilation was practiced in group SF between 900 and 1800 h throughout the experiment. The microclimatic variables were low in the sheds of groups CJ, CJF, and SF than the CON. The physiological responses such as rectal temperature, skin temperature, respiration rate, and pulse rate were reduced in groups CJ, CJF, and SF than the CON at 1400 h. The serum cortisol was less in the CJF and SF than those of CON group. The animals of the CJ, CJF, and SF groups spent more time for feeding and rumination with less frequent longer bouts. The extended periods of lying followed by shorter standing and idling were observed in groups CJ, CJF, and SF when compared with the CON. It may be therefore concluded that cooling jacket and intermittent sprinkling in combination with forced air ventilation might be helpful in improving the micro-environment, thermal comfort, and behavior of buffalo heifers particularly under tropical climates during summer.
Collapse
Affiliation(s)
- K K Verma
- Department of Livestock Production Management, Faculty of Veterinary & Animal Sciences, Institute of Agricultural Sciences, Rajiv Gandhi South Campus, Banaras Hindu University, Mirzapur-231 001 (UP), Barkachha, India.
| | - M Singh
- Principal Scientist, Livestock Production & Management Section, Indian Council of Agricultural Research-Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, Bareilly, UP, India
| | - U S Narwaria
- Department of Livestock Production & Management, College of Veterinary Science & Animal Husbandry, Rewa, MP, India
| | - H C Joshi
- Farm Machinery Section, Indian Council of Agricultural Research-Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, Bareilly, UP, India
| | - B H M Patel
- Department of Livestock Production & Management, Indian Council of Agricultural Research-Indian Veterinary Research Institute (ICAR-IVRI), Bangalore, Karnataka), India
| |
Collapse
|
23
|
Stanisic D, Jeremic N, Singh M, Pushpakumar S, Mokshagundam SPL, Tyagi SC. Porphyromonas gingivalis induces cardiovascular dysfunction. Can J Physiol Pharmacol 2023. [PMID: 37207360 DOI: 10.1139/cjpp-2022-0392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
P. gingivalis is responsible for periodontal disease (PD), however; its role in development of cardiovascular pathogenesis is not fully known. We wanted to determine whether there is an association between P. gingivalis induced PD and cardiovascular disease and whether treatment with a probiotic could help improve outcome. We employed 4 groups of mice and PD was created by injecting P. gingivalis-lipopolysaccharide (LPS) intragingivally. PB (Lactobacillus rhamnosus GG) intervention was done orally for 12 weeks. Echocardiography of heart was performed, and serum, hearts and periodontal tissue samples were collected. Histological, cytokine and zymography analyses were performed. Results revealed inflammation of the heart muscle in PD group that was marked by infiltration of neutrophils and monocytes followed by fibrosis. Cytokine analysis of sera revealed significantly elevated TNF-α, IL-1β, IL-6 and IL-17A in PD group along with LPS binding protein and CD-14. Most importantly, we observed elevated P. gingivalis mRNAs in hearts of PD mice. Zymography demonstrated matrix remodeling as revealed by increasing MMPs in hearts of PD mice. Interestingly, LGG treatment was able to mitigate most of the pathological effects. Findings suggest that P. gingivalis could lead to cardiovascular disorder and that probiotic intervention could alleviate harmful effects on cardiovascular functioning.
Collapse
Affiliation(s)
- Dragana Stanisic
- University of Kragujevac, 127740, Department of Dentistry, Kragujevac, Serbia
- University of Kragujevac, 127740, Kragujevac, Serbia;
| | - Nevena Jeremic
- Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia, Department of Pharmacy, Kragujevac, Serbia;
| | - Mahavir Singh
- University of Louisville School of Medicine, 12254, Department of Physiology, Louisville, Kentucky, United States;
| | - Sathnur Pushpakumar
- University of Louisville, Physiology and Biophysics, Louisville, Kentucky, United States;
| | - Sri Prakash L Mokshagundam
- University of Louisville Health Sciences Center, 162144, Robley Rex VA Medical Center, University of Louisville School of Medicine, Louisville, Kentucky, United States;
| | - Suresh C Tyagi
- University of Louisville, Physiology, Louisville, Kentucky, United States
- University of Louisville, Louisville, United States;
| |
Collapse
|
24
|
Wang J, Vaddu S, Bhumanapalli S, Mishra A, Applegate T, Singh M, Thippareddi H. A systematic review and meta-analysis of the sources of Salmonella in poultry production (pre-harvest) and their relative contributions to the microbial risk of poultry meat. Poult Sci 2023; 102:102566. [PMID: 36996513 PMCID: PMC10074252 DOI: 10.1016/j.psj.2023.102566] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
Salmonella is a major foodborne pathogen associated with poultry and poultry products and a leading cause for human salmonellosis. Salmonella is known to transmit in poultry flocks both vertically and horizontally. However, there is a lack of knowledge on relative contribution of the factors on Salmonella prevalence in poultry live production system including hatchery, feed, water, environment-interior, and -exterior. Therefore, a systematic review and meta-analysis was conducted to quantify the potential sources of Salmonella during preharvest and their relative contributions to the microbial risk of poultry meat. A total of 16,800 studies identified from Google Scholar and 37 relevant studies were included in the meta-analysis for relative contributions to Salmonella positivity on broilers after applying exclusion criteria. A generalized linear mixed model approach combined with logit transformation was used in the current study to stabilize the variance. The analysis revealed that the hatchery is the most significant contributor of Salmonella with a prevalence of 48.5%. Litter, feces, and poultry house internal environment were the other 3 major contributing factors with a prevalence of 25.4, 16.3, and 7.9%, respectively. Moreover, poultry house external environment (4.7%), feed (4.8%), chicks (4.7%), and drinker water also contributed to the Salmonella positivity. Results from this meta-analysis informed the urgent need for controls in live production to further reduce Salmonella in fresh, processed poultry. The control strategies can include eliminating the sources of Salmonella and incorporating interventions in live production to reduce Salmonella concentrations in broilers.
Collapse
Affiliation(s)
- J Wang
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - S Vaddu
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - S Bhumanapalli
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - A Mishra
- Department of Food Science and Technology, University of Georgia, Athens, GA 30602, USA
| | - T Applegate
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - M Singh
- Department of Food Science and Technology, University of Georgia, Athens, GA 30602, USA
| | - H Thippareddi
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
| |
Collapse
|
25
|
Pushpakumar S, Singh M, Zheng Y, Akinterinwa OE, Mokshagundam SPL, Sen U, Kalra DK, Tyagi SC. Renal Denervation Helps Preserve the Ejection Fraction by Preserving Endocardial-Endothelial Function during Heart Failure. Int J Mol Sci 2023; 24:ijms24087302. [PMID: 37108465 PMCID: PMC10139195 DOI: 10.3390/ijms24087302] [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: 03/01/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Renal denervation (RDN) protects against hypertension, hypertrophy, and heart failure (HF); however, it is not clear whether RDN preserves ejection fraction (EF) during heart failure (HFpEF). To test this hypothesis, we simulated a chronic congestive cardiopulmonary heart failure (CHF) phenotype by creating an aorta-vena cava fistula (AVF) in the C57BL/6J wild type (WT) mice. Briefly, there are four ways to create an experimental CHF: (1) myocardial infarction (MI), which is basically ligating the coronary artery by instrumenting and injuring the heart; (2) trans-aortic constriction (TAC) method, which mimics the systematic hypertension, but again constricts the aorta on top of the heart and, in fact, exposes the heart; (3) acquired CHF condition, promoted by dietary factors, diabetes, salt, diet, etc., but is multifactorial in nature; and finally, (4) the AVF, which remains the only one wherein AVF is created ~1 cm below the kidneys in which the aorta and vena cava share the common middle-wall. By creating the AVF fistula, the red blood contents enter the vena cava without an injury to the cardiac tissue. This model mimics or simulates the CHF phenotype, for example, during aging wherein with advancing age, the preload volume keeps increasing beyond the level that the aging heart can pump out due to the weakened cardiac myocytes. Furthermore, this procedure also involves the right ventricle to lung to left ventricle flow, thus creating an ideal condition for congestion. The heart in AVF transitions from preserved to reduced EF (i.e., HFpEF to HFrEF). In fact, there are more models of volume overload, such as the pacing-induced and mitral valve regurgitation, but these are also injurious models in nature. Our laboratory is one of the first laboratories to create and study the AVF phenotype in the animals. The RDN was created by treating the cleaned bilateral renal artery. After 6 weeks, blood, heart, and renal samples were analyzed for exosome, cardiac regeneration markers, and the renal cortex proteinases. Cardiac function was analyzed by echocardiogram (ECHO) procedure. The fibrosis was analyzed with a trichrome staining method. The results suggested that there was a robust increase in the exosomes' level in AVF blood, suggesting a compensatory systemic response during AVF-CHF. During AVF, there was no change in the cardiac eNOS, Wnt1, or β-catenin; however, during RDN, there were robust increases in the levels of eNOS, Wnt1, and β-catenin compared to the sham group. As expected in HFpEF, there was perivascular fibrosis, hypertrophy, and pEF. Interestingly, increased levels of eNOS suggested that despite fibrosis, the NO generation was higher and that it most likely contributed to pEF during HF. The RDN intervention revealed an increase in renal cortical caspase 8 and a decrease in caspase 9. Since caspase 8 is protective and caspase 9 is apoptotic, we suggest that RDN protects against the renal stress and apoptosis. It should be noted that others have demonstrated a role of vascular endothelium in preserving the ejection by cell therapy intervention. In the light of foregoing evidence, our findings also suggest that RDN is cardioprotective during HFpEF via preservation of the eNOS and accompanied endocardial-endothelial function.
Collapse
Affiliation(s)
- Sathnur Pushpakumar
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Mahavir Singh
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Yuting Zheng
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Oluwaseun E Akinterinwa
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Sri Prakash L Mokshagundam
- Division of Endocrinology, Metabolism and Diabetes and Robley Rex VA Medical Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Utpal Sen
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Dinesh K Kalra
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Suresh C Tyagi
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| |
Collapse
|
26
|
Zavadil JA, Singh M, Robertson EG, Clark L, Snaman JM, McNeil M, Acerra A, Baker JN. Going Virtual: Adapting an Institutional Annual Bereavement Event During the COVID-19 Pandemic. J Pediatr 2023:113393. [PMID: 36940869 PMCID: PMC10027290 DOI: 10.1016/j.jpeds.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/20/2023] [Accepted: 03/06/2023] [Indexed: 03/22/2023]
Abstract
Our institution's annual bereaved family event was modified to a virtual format during the COVID-19 pandemic. While necessary to comply with physical distancing directives, the transition also provided greater accessibility for families. Virtual events were feasible and appreciated by attendees. Future hybrid bereavement events should be considered to allow families more flexibility and accessibility.
Collapse
Affiliation(s)
- J A Zavadil
- Division of Quality of Life and Palliative Care, St Jude Children's Research Hospital, Memphis, TN, USA; Division of Pediatric Palliative Care, Department of Pediatrics, Indiana University, Indianapolis, IN, USA
| | - M Singh
- Department of Pediatrics, University of Tennessee Health Sciences Center, Memphis, TN, USA; Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - E G Robertson
- Division of Quality of Life and Palliative Care, St Jude Children's Research Hospital, Memphis, TN, USA; Discipline of Paediatrics and Child Health, School of Clinical Medicine, UNSW Medicine and Health, UNSW Sydney, New South Wales, Australia
| | - L Clark
- Division of Quality of Life and Palliative Care, St Jude Children's Research Hospital, Memphis, TN, USA
| | - J M Snaman
- Department of Psychosocial Oncology and Palliative Care, Dana-Farber Cancer Institute, Boston, Massachusetts and Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts
| | - M McNeil
- Division of Quality of Life and Palliative Care, St Jude Children's Research Hospital, Memphis, TN, USA
| | - A Acerra
- Division of Quality of Life and Palliative Care, St Jude Children's Research Hospital, Memphis, TN, USA
| | - J N Baker
- Division of Quality of Life and Palliative Care, St Jude Children's Research Hospital, Memphis, TN, USA.
| |
Collapse
|
27
|
Logan C, Singh M, Fox N, Brown G, Krishna S, Gordon K, Macallan D, Bicanic T. Chromoblastomycosis treated with posaconazole and adjunctive imiquimod: lending innate immunity a helping hand. Open Forum Infect Dis 2023; 10:ofad124. [PMID: 37035498 PMCID: PMC10077821 DOI: 10.1093/ofid/ofad124] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/13/2023] [Indexed: 03/16/2023] Open
Abstract
Abstract
Chromoblastomycosis (CBM) is a difficult-to-treat, chronic fungal infection of the skin and subcutaneous tissue. The evidence base for treatment is scarce, with no standardised therapeutic approach. Chronicity of CBM infection is postulated to be due in part to a failure of host cell-mediated immunity to generate a proinflammatory response sufficient for fungal clearance. We present a case of a chronic chromoblastomycosis lesion of the hand present for nearly four decades, previously refractory to itraconazole monotherapy, that was successfully treated with a combination of posaconazole and adjunctive immunotherapy with topical Imiquimod, a toll-like receptor 7 agonist. Serial biopsies and images demonstrate the clinical and histopathological improvement of the lesion. Randomised trials of antifungal therapy with adjunctive imiquimod are warranted to determine whether a combination of antifungal and host-directed therapy improves outcomes for this neglected tropical mycosis.
Collapse
Affiliation(s)
- C Logan
- Clinical Infection Unit, St George’s University Hospitals NHS Foundation Trust , Blackshaw Road, London , United Kingdom
- Institute of Infection & Immunity, St Georges University London , Cranmer Terrace, London , United Kingdom
| | - M Singh
- Department of Cellular Pathology, St George’s University Hospitals NHS Foundation Trust , Blackshaw Road, London , United Kingdom
| | - N Fox
- Department of Dermatology, St George’s University Hospitals NHS Foundation Trust , London , United Kingdom
| | - G Brown
- MRC Centre for Medical Mycology, University of Exeter, Geoffrey Pope Building , Stocker Road, Exeter, EX4 4QD , UK
| | - S Krishna
- Department of Dermatology, St George’s University Hospitals NHS Foundation Trust , London , United Kingdom
| | - K Gordon
- Department of Dermatology, St George’s University Hospitals NHS Foundation Trust , London , United Kingdom
| | - D Macallan
- Clinical Infection Unit, St George’s University Hospitals NHS Foundation Trust , Blackshaw Road, London , United Kingdom
- Institute of Infection & Immunity, St Georges University London , Cranmer Terrace, London , United Kingdom
| | - T Bicanic
- Clinical Infection Unit, St George’s University Hospitals NHS Foundation Trust , Blackshaw Road, London , United Kingdom
- Institute of Infection & Immunity, St Georges University London , Cranmer Terrace, London , United Kingdom
- MRC Centre for Medical Mycology, University of Exeter, Geoffrey Pope Building , Stocker Road, Exeter, EX4 4QD , UK
| |
Collapse
|
28
|
Mascart F, Hites M, Watelet E, Verschelden G, Meuris C, Doyen JL, Van Praet A, Godefroid A, Petit E, Singh M, Locht C, Corbière V. Analysis of a Combined HBHA and ESAT-6-Interferon-γ-Release Assay for the Diagnosis of Tuberculous Lymphadenopathies. J Clin Med 2023; 12:jcm12062127. [PMID: 36983128 PMCID: PMC10052338 DOI: 10.3390/jcm12062127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/10/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
Background and Objectives: The incidence of tuberculosis lymphadenopathy (TBLA) is increasing, and diagnostic procedures lack sensitivity and are often highly invasive. TBLA may be asymptomatic, and differential diagnosis with other adenopathies (ADPs) is difficult. We evaluated a blood-cell interferon-γ release assay (IGRA) with two different stage-specific mycobacterial antigens for the differential diagnosis of ADP suspected of mycobacterial origin. Methods: Twenty-one patients were included and divided into three groups: (1) cervical/axillar ADP (n = 8), (2) mediastinal ADP (n = 10), and (3) disseminated ADP (n = 3). The mycobacterial antigens used for the IGRA were the heparin-binding haemagglutinin (HBHA) and the early-secreted antigenic target-6 (ESAT-6), a latency-associated antigen and a bacterial replication-related antigen, respectively. Diagnosis of TBLA based on microbiological results and/or response to anti-TB treatment was obtained for 15 patients. Results: An IGRA profile highly suggestive of active TB (higher IFN-γ response to ESAT-6 compared to HBHA) was found for 3/6 TBLA patients from group 1, and for all the TBLA patients from groups 2 and 3, whereas this profile was not noticed in patients with a final alternative diagnosis. Conclusion: These results highlight the potential value of this combined HBHA/ESAT-6 IGRA as a triage test for the differential diagnosis of ADP.
Collapse
Affiliation(s)
- Françoise Mascart
- Laboratory of Vaccinology and Mucosal Immunity, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium (V.C.)
- Correspondence:
| | - Maya Hites
- Clinic of Infectious and Tropical Diseases, Hôpital Universitaire de Bruxelles (HUB)-Hôpital Erasme, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
| | - Emmanuelle Watelet
- Department of Pneumology, Clinique St-Anne/St-Remi—Chirec, 1070 Brussels, Belgium
| | - Gil Verschelden
- Department of Internal Medicine, Universitair Ziekenhuis Brussel—UZ Brussel, Vrije Universiteit Brussel (VUB), 1090 Brussels, Belgium
| | - Christelle Meuris
- Department of Infectious Diseases, Liège University Hospital, 4000 Liège, Belgium
| | - Jean-Luc Doyen
- Department of Pneumology, Clinique St-Anne/St-Remi—Chirec, 1070 Brussels, Belgium
| | - Anne Van Praet
- Laboratory of Vaccinology and Mucosal Immunity, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium (V.C.)
| | - Audrey Godefroid
- Laboratory of Vaccinology and Mucosal Immunity, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium (V.C.)
| | - Emmanuelle Petit
- U-1019—UMR8204, Center for Infection and Immunity of Lille (CIIL), CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, University of Lille, 59000 Lille, France
| | - Mahavir Singh
- Lionex Diagnostics and Therapeutics, 38126 Braunschweig, Germany
| | - Camille Locht
- U-1019—UMR8204, Center for Infection and Immunity of Lille (CIIL), CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, University of Lille, 59000 Lille, France
| | - Véronique Corbière
- Laboratory of Vaccinology and Mucosal Immunity, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium (V.C.)
| |
Collapse
|
29
|
Der B, Bugacov H, Singh M, Mcmahon A. The cadherin-catenin complex is crucial for the initial step of nephron formation. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00241-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
|
30
|
Beyer D, Sridhar S, Singh M, Nikdast J, Engel LS, Boudreaux K. BRASH syndrome: a close “BRASH” with death? Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00070-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
31
|
Kalra M, Bakhshi S, Singh M, Seth R, Verma N, Jain S, Radhakrishnan V, Mandal P, Mahajan A, Arora RS, Dinand V, Kapoor G, Sajid M, Kumar R, Taluja A, Mallick S, Chandra J. Response assessment by positron emission tomography-computed tomography as compared with contrast-enhanced computed tomography in childhood Hodgkin lymphoma can reduce the need for radiotherapy in low- and middle-income countries. Pediatr Blood Cancer 2023; 70:e30091. [PMID: 36411263 DOI: 10.1002/pbc.30091] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/21/2022] [Accepted: 10/19/2022] [Indexed: 11/23/2022]
Abstract
INTRODUCTION The InPOG-HL-15-01, a multicentric prospective study, used a risk-stratified and response-based approach with doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD) backbone to treat children and adolescents with newly diagnosed Hodgkin lymphoma (HL) and reduce the use of radiation therapy (RT). Children/adolescents with bulky disease or inadequate response at early response assessment (ERA) after two cycles of chemotherapy were assigned to receive RT. For ERA, positron emission tomography computed tomography (PET-CT) was recommended but not mandatory in view of limited access. This study aimed to compare the impact of using contrast-enhanced computed tomography (CECT) and PET-CT on treatment decisions and outcomes. METHODOLOGY 396 patients were enrolled and 382 had an ERA at the assigned time point. Satisfactory response was defined as Deauville score 3 or less for patients undergoing PET-CT and complete response (CR)/very good partial response (VGPR) for patients undergoing CECT. Outcomes of interest incorporate 5 year event-free survival (EFS), EFS including abandonment (EFSa), and overall survival (OS). RESULTS At ERA, satisfactory response was documented in 277 out of 382 (72.5%) participants and this was significantly higher in PET-CT (151 out of 186, 81.2%) as compared with CECT-based assessments (126 out of 196, 64.3%) respectively (p value < .001). Amongst the 203 patients with nonbulky disease (wherein the indication for RT was entirely dependent on ERA), 96 out of 114 (84.2%) and 61 out of 89 (68.5%) patients achieved a satisfactory response according to the PET-CT and CECT (p value = .008) respectively and hence a lesser proportion of patients in the PET-CT arm received RT. Despite a lower usage of RT the 5 year OS of both groups, ERA based on CECT (91.8%) versus PET-CT (94.1%) was comparable (p value = .391) and so was the 5 year EFS (86.7 vs. 85.5%, p value = .724). CONCLUSION Use of PET-CT as the modality for ERA is more likely to indicate a satisfactory response as compared with CECT and thereby decreases the need for RT in response-based treatment algorithm for HL-afflicted children. The reduction in the application of RT did not impact the overall outcome and plausibly would lower the risk of delayed toxic effects.
Collapse
Affiliation(s)
- Manas Kalra
- Department of Pediatric Hematology Oncology BMT, Sir Ganga Ram Hospital, New Delhi, India
| | - Sameer Bakhshi
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - M Singh
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, India
| | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Nishant Verma
- Department of Pediatrics, King George's Medical University, Lucknow, India
| | - Sandeep Jain
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | - V Radhakrishnan
- Department of Pediatric Oncology, Cancer Institute, Adyar, Chennai, India
| | - Piali Mandal
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
| | - Amita Mahajan
- Department of Pediatric Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Ramandeep S Arora
- Department of Pediatric Oncology, Max Super Specialty Hospital, New Delhi, India
| | - Veronique Dinand
- Department of Palliative and Supportive Unit, BJ Wadia Hospital, Mumbai, India
| | - Gauri Kapoor
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | - M Sajid
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, India
| | - Rakesh Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - A Taluja
- Cankids Kidscan, New Delhi, India
| | - Saumyaranjan Mallick
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Jagdish Chandra
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
| |
Collapse
|
32
|
Cheng N, Tan EWP, Leng S, Baskaran L, Teo L, Yew MS, Singh M, Huang WM, Chan MYY, Ngiam KY, Vaughan R, Chua T, Tan SY, Lee HK, Zhong L. Machine learning accurately quantifies epicardial adipose tissue from non-contrast CT images in coronary artery disease. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Other. Main funding source(s): Industry Alignment Fund – Pre-positioning Programme
Background
Epicardial adipose tissue (EAT) is the visceral fat deposit within the pericardium that surrounds the heart and the coronary arteries. EAT volume measured from non-contrast CT (NCCT) has been demonstrated to be significantly associated with adverse cardiovascular risk,1 particularly in patients with coronary artery disease.2 However, routine measurement of EAT volume is still challenging in clinical practice, as it is a tedious manual process and prone to human error.
Purpose
We aimed to develop a fully automated AI toolkit (i.e., AI EAT) for the quantification of EAT from routine NCCT scans and assess its performance in reference to clinical ground truth.
Methods
This is a multicenter study which performs CT scans in 5000 Asian Admixture patients (APOLLO study NCT05509010). In the current stage of this study, NCCT data analysis were conducted in 551 patients with 26,037 images. AI EAT was developed via a novel deep learning framework using an ensemble region-based UNet. The region-based UNet uses 2 component UNet models to perform segmentation of pericardium at the apex region and non-apex region (middle and basal). EAT volume was obtained by automated thresholding of the voxels (-190 to -30 Hounsfield Unit) within the pericardium (Figure 1). The network was trained in 501 patients with 23,712 NCCT images and tested in 50 patients with 2,325 NCCT images. The performance of AI EAT was evaluated with respect to clinical ground truth using Dice similarity coefficient (DSC), Pearson correlation, and Bland-Altman analysis.
Results
The AI EAT quantification process took less than 10 seconds per subject, compared with 20-30 minutes for expert readers. Compared to clinical ground truth, our AI EAT achieved a DSC of 0.96±0.01 and 0.91±0.02 for pericardium and EAT segmentations, respectively. There was strong agreement between the AI EAT and clinical ground truth in deriving the EAT volume (r=0.99, P<0.001) with minimal error of 7±5%.
Conclusion
End-to-end deep learning system accurately quantifies epicardial adipose tissue in standard NCCT images without manual segmentation.
Collapse
Affiliation(s)
- N Cheng
- Bioinformatics Institute, A*STAR , Singapore , Singapore
| | - E W P Tan
- Bioinformatics Institute, A*STAR , Singapore , Singapore
| | - S Leng
- National Heart Centre Singapore; Duke-NUS Medical School , Singapore , Singapore
| | - L Baskaran
- National Heart Centre Singapore; Duke-NUS Medical School , Singapore , Singapore
| | - L Teo
- National University Hospital; National University of Singapore, Department of Diagnostic Imaging; Yong Loo Lin School of Medicine , Singapore , Singapore
| | - M S Yew
- Tan Tock Seng Hospital , Singapore , Singapore
| | - M Singh
- Bioinformatics Institute, A*STAR , Singapore , Singapore
| | - W M Huang
- Institute for Infocomm Research, A*STAR , Singapore , Singapore
| | - M Y Y Chan
- National University Heart Centre; National University of Singapore, Department of Cardiology; Yong Loo Lin School of Medicine , Singapore , Singapore
| | - K Y Ngiam
- National University Hospital; National University of Singapore; National University Health System, Department of Surgery; Yong Loo Lin School of Medicine , Singapore , Singapore
| | - R Vaughan
- Duke-NUS Medical School , Singapore , Singapore
| | - T Chua
- National Heart Centre Singapore; Duke-NUS Medical School , Singapore , Singapore
| | - S Y Tan
- National Heart Centre Singapore; Duke-NUS Medical School , Singapore , Singapore
| | - H K Lee
- Bioinformatics Institute, A*STAR , Singapore , Singapore
| | - L Zhong
- National Heart Centre Singapore; Duke-NUS Medical School , Singapore , Singapore
| |
Collapse
|
33
|
Singh M, Pushpakumar S, Bard N, Zheng Y, Homme RP, Mokshagundam SPL, Tyagi SC. Simulation of COVID-19 symptoms in a genetically engineered mouse model: implications for the long haulers. Mol Cell Biochem 2023; 478:103-119. [PMID: 35731343 PMCID: PMC9214689 DOI: 10.1007/s11010-022-04487-0] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/30/2022] [Indexed: 01/24/2023]
Abstract
The ongoing pandemic (also known as coronavirus disease-19; COVID-19) by a constantly emerging viral agent commonly referred as the severe acute respiratory syndrome corona virus 2 or SARS-CoV-2 has revealed unique pathological findings from infected human beings, and the postmortem observations. The list of disease symptoms, and postmortem observations is too long to mention; however, SARS-CoV-2 has brought with it a whole new clinical syndrome in "long haulers" including dyspnea, chest pain, tachycardia, brain fog, exercise intolerance, and extreme fatigue. We opine that further improvement in delivering effective treatment, and preventive strategies would be benefited from validated animal disease models. In this context, we designed a study, and show that a genetically engineered mouse expressing the human angiotensin converting enzyme 2; ACE-2 (the receptor used by SARS-CoV-2 agent to enter host cells) represents an excellent investigative resource in simulating important clinical features of the COVID-19. The ACE-2 mouse model (which is susceptible to SARS-CoV-2) when administered with a recombinant SARS-CoV-2 spike protein (SP) intranasally exhibited a profound cytokine storm capable of altering the physiological parameters including significant changes in cardiac function along with multi-organ damage that was further confirmed via histological findings. More importantly, visceral organs from SP treated mice revealed thrombotic blood clots as seen during postmortem examination. Thus, the ACE-2 engineered mouse appears to be a suitable model for studying intimate viral pathogenesis thus paving the way for identification, and characterization of appropriate prophylactics as well as therapeutics for COVID-19 management.
Collapse
Affiliation(s)
- Mahavir Singh
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
| | - Sathnur Pushpakumar
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Nia Bard
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Yuting Zheng
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Rubens P Homme
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Sri Prakash L Mokshagundam
- Division of Endocrinology, Metabolism and Diabetes and Robley Rex VA Medical Center, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Suresh C Tyagi
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| |
Collapse
|
34
|
Maulik A, Bandopadhyay D, Singh M. A cytosine-patch sequence motif identified in the conserved region of lincRNA-p21 interacts with the KH3 domain of hnRNPK. Curr Res Struct Biol 2023; 5:100099. [PMID: 36941955 PMCID: PMC10023864 DOI: 10.1016/j.crstbi.2023.100099] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 12/07/2022] [Accepted: 02/28/2023] [Indexed: 03/05/2023] Open
Abstract
Long Intergenic Non-coding RNAs (lincRNAs) are the largest class of long non-coding RNAs in eukaryotes, originating from the genome's intergenic regions. A ∼4 kb long lincRNA-p21 is derived from a transcription unit next to the p21/Cdkn1a gene locus. LincRNA-p21 plays regulatory roles in p53-dependent transcriptional and translational repression through its physical association with proteins such as hnRNPK and HuR. It is also involved in the aberrant gene expression in different cancers. In this study, we have carried out a bioinformatics-based gene analysis and annotation of lincRNA-p21 to show that it is highly conserved in primates and identified two conserved domains in its sequence at the 5' and 3' terminal regions. hnRNPK has previously been shown to interact specifically with the 5' conserved region of lincRNA-p21. hnRNPK is known to bind preferentially to the pyrimidine-rich (poly C) nucleotide sequences in RNAs. Interestingly, we observed a single occurrence of a cytosine-rich patch (C-patch) consisting of a CUCCCGC sequence in the 5' conserved region of human lincRNA-p21, making it a putative hnRNPK binding motif. Using NMR and ITC experiments, we showed that the single-stranded C-patch containing RNA sequence motif interacts specifically with the KH3 domain of hnRNPK.
Collapse
|
35
|
Singh M, Dasila K, Chettri A, Jain R, Dhyani A, Pandey A. Phytochemicals, Antioxidant and Antimicrobial Potential of Ethnomedicinal Plants of Sikkim Himalaya. Indian J Pharm Sci 2023. [DOI: 10.36468/pharmaceutical-sciences.1083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
|
36
|
Tyagi SC, Pushpakumar S, Sen U, Mokshagundam SPL, Kalra DK, Saad MA, Singh M. COVID-19 Mimics Pulmonary Dysfunction in Muscular Dystrophy as a Post-Acute Syndrome in Patients. Int J Mol Sci 2022; 24:ijms24010287. [PMID: 36613731 PMCID: PMC9820572 DOI: 10.3390/ijms24010287] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/12/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Although progressive wasting and weakness of respiratory muscles are the prominent hallmarks of Duchenne muscular dystrophy (DMD) and long-COVID (also referred as the post-acute sequelae of COVID-19 syndrome); however, the underlying mechanism(s) leading to respiratory failure in both conditions remain unclear. We put together the latest relevant literature to further understand the plausible mechanism(s) behind diaphragm malfunctioning in COVID-19 and DMD conditions. Previously, we have shown the role of matrix metalloproteinase-9 (MMP9) in skeletal muscle fibrosis via a substantial increase in the levels of tumor necrosis factor-α (TNF-α) employing a DMD mouse model that was crossed-bred with MMP9-knockout (MMP9-KO or MMP9-/-) strain. Interestingly, recent observations from clinical studies show a robust increase in neopterin (NPT) levels during COVID-19 which is often observed in patients having DMD. What seems to be common in both (DMD and COVID-19) is the involvement of neopterin (NPT). We know that NPT is generated by activated white blood cells (WBCs) especially the M1 macrophages in response to inducible nitric oxide synthase (iNOS), tetrahydrobiopterin (BH4), and tetrahydrofolate (FH4) pathways, i.e., folate one-carbon metabolism (FOCM) in conjunction with epigenetics underpinning as an immune surveillance protection. Studies from our laboratory, and others researching DMD and the genetically engineered humanized (hACE2) mice that were administered with the spike protein (SP) of SARS-CoV-2 revealed an increase in the levels of NPT, TNF-α, HDAC, IL-1β, CD147, and MMP9 in the lung tissue of the animals that were subsequently accompanied by fibrosis of the diaphragm depicting a decreased oscillation phenotype. Therefore, it is of interest to understand how regulatory processes such as epigenetics involvement affect DNMT, HDAC, MTHFS, and iNOS that help generate NPT in the long-COVID patients.
Collapse
Affiliation(s)
- Suresh C. Tyagi
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Sathnur Pushpakumar
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Utpal Sen
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Sri Prakash L. Mokshagundam
- Division of Endocrinology, Metabolism and Diabetes and Robley Rex VA Medical Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Dinesh K. Kalra
- Division of Cardiovascular Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Mohamed A. Saad
- Division of Pulmonary, Critical Care and Sleep Disorders Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Mahavir Singh
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
- Correspondence: or
| |
Collapse
|
37
|
Moawad AR, Osbie M, Xiaoling M, Singh M, Kouakou B, Terrill TH, Pech-Cervantes AA. 173 Effects of dietary supplementation of peanut skins on sperm quality and fertility parameters of growing male sheep. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
|
38
|
Dave BR, Kulkarni M, Patidar V, Devanand D, Mayi S, Reddy C, Singh M, Rai RR, Krishnan A. Results of in situ fixation of Andersson lesion by posterior approach in 35 cases. Musculoskelet Surg 2022; 106:385-395. [PMID: 34037925 DOI: 10.1007/s12306-021-00712-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 05/11/2021] [Indexed: 02/05/2023]
Abstract
STUDY OBJECTIVE Due to the rarity of the Andersson lesion (AL), the literature is ambiguous regarding the type of surgical fixation, need for debridement and deformity correction. The purpose of this retrospective study is to evaluate the efficacy, feasibility and functional outcome of posterior fixation in AL. MATERIALS AND METHODS This study included 35 patients having thoracolumbar AL operated for in situ fixation and fusion with minimum of 24-month follow-up. VAS (Visual Analogue Score) back pain, ODI (Oswestry Disability Index), Frankel's grade were compared and analyzed. Union status was noted with complications. RESULTS The mean age of 35 patients was 56.34(± 11.3) years with average follow-up of 51.49 months. Two patients had AL at two levels. 27/37 AL were at discal level. Average estimated blood loss (EBL) was 276.43 ml and duration of surgery was 130.43 min. On an average, operated segments needed 7.77 screws. There were ten minor complications without long-term sequel. Neurological improvement was noted in 30 patients. Average preoperative VAS score improved from 8.69 to 3.14, ODI score improved from 68.76 to 18.77 at final follow-up which were significant (p < 0.05). There was significant improvement in Frankel's grading (Z = - 4.354, P = 0.00). CONCLUSIONS Surgical management of AL by posterior approach and posterior stabilization can give satisfactory results without the need of extensive anterior reconstruction, bone grafting or deformity correction procedures without added morbidity and complications.
Collapse
Affiliation(s)
- B R Dave
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - M Kulkarni
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - V Patidar
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - D Devanand
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - S Mayi
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - C Reddy
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - M Singh
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - R R Rai
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India
| | - A Krishnan
- Stavya Spine Hospital and Research Institute, Nr Nagari Hospital, Mithakhali, Ellisbridge, Ahmedabad, Gujarat, 380006, India.
- BIMS Hospital, Opp. Sir T Hospital, Near Charan Boarding, Jail Rd, Bhavnagar, Gujarat, 364001, India.
| |
Collapse
|
39
|
Crawford HL, Tripathi V, Allmond JM, Crider BP, Grzywacz R, Liddick SN, Andalib A, Argo E, Benetti C, Bhattacharya S, Campbell CM, Carpenter MP, Chan J, Chester A, Christie J, Clark BR, Cox I, Doetsch AA, Dopfer J, Duarte JG, Fallon P, Frotscher A, Gaballah T, Gray TJ, Harke JT, Heideman J, Heugen H, Jain R, King TT, Kitamura N, Kolos K, Kondev FG, Laminack A, Longfellow B, Lubna RS, Luitel S, Madurga M, Mahajan R, Mogannam MJ, Morse C, Neupane S, Nowicki A, Ogunbeku TH, Ong WJ, Porzio C, Prokop CJ, Rasco BC, Ronning EK, Rubino E, Ruland TJ, Rykaczewski KP, Schaedig L, Seweryniak D, Siegl K, Singh M, Tabor SL, Tang TL, Wheeler T, Winger JA, Xu Z. Crossing N=28 Toward the Neutron Drip Line: First Measurement of Half-Lives at FRIB. Phys Rev Lett 2022; 129:212501. [PMID: 36461950 DOI: 10.1103/physrevlett.129.212501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/14/2022] [Indexed: 06/17/2023]
Abstract
New half-lives for exotic isotopes approaching the neutron drip-line in the vicinity of N∼28 for Z=12-15 were measured at the Facility for Rare Isotope Beams (FRIB) with the FRIB decay station initiator. The first experimental results are compared to the latest quasiparticle random phase approximation and shell-model calculations. Overall, the measured half-lives are consistent with the available theoretical descriptions and suggest a well-developed region of deformation below ^{48}Ca in the N=28 isotones. The erosion of the Z=14 subshell closure in Si is experimentally confirmed at N=28, and a reduction in the ^{38}Mg half-life is observed as compared with its isotopic neighbors, which does not seem to be predicted well based on the decay energy and deformation trends. This highlights the need for both additional data in this very exotic region, and for more advanced theoretical efforts.
Collapse
Affiliation(s)
- H L Crawford
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - V Tripathi
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - J M Allmond
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - B P Crider
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Grzywacz
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - S N Liddick
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - A Andalib
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - E Argo
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Benetti
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - S Bhattacharya
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - C M Campbell
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M P Carpenter
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Chan
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - A Chester
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Christie
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - B R Clark
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - I Cox
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - A A Doetsch
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J Dopfer
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J G Duarte
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P Fallon
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Frotscher
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Gaballah
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - T J Gray
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - J T Harke
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J Heideman
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - H Heugen
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - R Jain
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - T T King
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - N Kitamura
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - K Kolos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - F G Kondev
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Laminack
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - B Longfellow
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R S Lubna
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - S Luitel
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - M Madurga
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - R Mahajan
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - M J Mogannam
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - C Morse
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - S Neupane
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - A Nowicki
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - T H Ogunbeku
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - W-J Ong
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C Porzio
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C J Prokop
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - B C Rasco
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - E K Ronning
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - E Rubino
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
| | - T J Ruland
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - K P Rykaczewski
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - L Schaedig
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - D Seweryniak
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - K Siegl
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - M Singh
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| | - S L Tabor
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - T L Tang
- Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
| | - T Wheeler
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, Michigan 48824, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - J A Winger
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Z Xu
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37966, USA
| |
Collapse
|
40
|
Kahn J, Niderberg T, Bayer A, Pollack S, Singh M. 8383 Removal of Intrauterine Adhesions Using an Ultrasound-Guided Balloon Therapy. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
41
|
McKenna M, Gueorguieva P, Singh M, Sasaki K, Miller C. Effects of Fibrin Sealant Compared with Suturing or No Hemostatic Intervention on Ovarian Reserve in Patient Undergoing Ovarian Cystectomy. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
42
|
Badosa Gali E, Nunez Torras M, Aboal Vinas J, Pascual Mayans J, Kassem Perez H, Singh M, Brugada Terradellas R, Loma-Osorio Ricon P. Neurological evolution of patients in coma at 72 hours after out-of-hospital cardiac arrest. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Establishing neurological prognosis after out-of-hospital cardiac arrest (OHCA) safely and early in those patients who remain in a coma at 72 hours of admission.
Purpose
To analyze the prognostic performance of neuron-specific enolase (NSE), Somatosensory evoked potentials (SSEPs) and electroencephalogram (EEG) in these patients.
Methods
Prospective and observational study, including all OHCAs admitted to a Cardiovascular Intensive Care Unit (CICU) of a tertiary hospital. Neurological stratification was performed at 72 hours with NSE (poor prognosis >60 ng/mL), SSEP (poor prognosis in the absence of N20) and EEG (poor prognosis). The sensitivity and specificity of each test for poor prognosis were calculated, as well as the three tests together.
Results
Between 03/17/2013 and 02/24/2022, 422 OHCAs were registered, of which 170 patients remained in a coma at 72 hours. The EEG had a sensitivity of 84% and a specificity of 89% due to poor prognosis. SSEPs had a sensitivity of 68% and a specificity of 98% due to poor prognosis. The NSE had a sensitivity of 67% and a specificity of 100% due to poor prognosis. The three tests were able to be performed on 110 patients, the sensitivity for poor prognosis of the three combined tests was 49% and the specificity was 100%.
Conclusions
In patients in a coma at 72 hours of OHCA, the most specific test to establish a poor prognosis was SSEP and the most sensitive was EEG. The combination of the three had a specificity of 100%.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- E Badosa Gali
- University Hospital de Girona Dr. Josep Trueta , Girona , Spain
| | - M Nunez Torras
- University Hospital de Girona Dr. Josep Trueta , Girona , Spain
| | - J Aboal Vinas
- University Hospital de Girona Dr. Josep Trueta , Girona , Spain
| | | | - H Kassem Perez
- University Hospital de Girona Dr. Josep Trueta , Girona , Spain
| | - M Singh
- University Hospital de Girona Dr. Josep Trueta , Girona , Spain
| | | | | |
Collapse
|
43
|
Blaj C, Menard M, Tobvis Shifrin N, Chen K, Chow C, Courtney H, Kumamoto A, Velilla T, Evans J, Lawrence L, Vonmelchert B, Kwok-Parkhill A, Singh M, Smith J, Quintana E. Enhancement of anti-tumor immunity in immunogenic and immune-refractory RAS mutant tumors with tri-complex RAS(ON) inhibitors. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00958-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
44
|
Moaddel V, Tapia A, Burkard D, Singh M, Peterson T, Pillay Y, Jones J, Sapp T. 321 Not So Benign Paroxysmal Positional Vertigo in the Emergency Department. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
45
|
Ahmed O, Dhillon S, Restivo A, Singh M. 239 Project PANDA: An Individual and Systems Based Approach to De-Escalation. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
46
|
Tie J, Cohen J, Lahouel K, Lo S, Wang Y, Wong R, Shapiro J, Harris S, Khattak A, Burge M, Horvath L, Karapetis C, Shannon J, Singh M, Yip D, Papadopoulos N, Tomasetti C, Kinzler K, Vogelstein B, Gibbs P. 318MO Circulating tumour DNA (ctDNA) dynamics, CEA and sites of recurrence for the randomised DYNAMIC study: Adjuvant chemotherapy (ACT) guided by ctDNA analysis in stage II colon cancer (CC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
47
|
Kamarajah S, Evans R, Nepogodiev D, Hodson J, Bundred J, Gockel I, Gossage J, Isik A, Kidane B, Mahendran H, Negoi I, Okonta K, Sayyed R, van Hillegersberg R, Vohra R, Wijnhoven B, Singh P, Griffiths E, Kamarajah S, Hodson J, Griffiths E, Alderson D, Bundred J, Evans R, Gossage J, Griffiths E, Jefferies B, Kamarajah S, McKay S, Mohamed I, Nepogodiev D, Siaw-Acheampong K, Singh P, van Hillegersberg R, Vohra R, Wanigasooriya K, Whitehouse T, Gjata A, Moreno J, Takeda F, Kidane B, Guevara Castro R, Harustiak T, Bekele A, Kechagias A, Gockel I, Kennedy A, Da Roit A, Bagajevas A, Azagra J, Mahendran H, Mejía-Fernández L, Wijnhoven B, El Kafsi J, Sayyed R, Sousa M, Sampaio A, Negoi I, Blanco R, Wallner B, Schneider P, Hsu P, Isik A, Gananadha S, Wills V, Devadas M, Duong C, Talbot M, Hii M, Jacobs R, Andreollo N, Johnston B, Darling G, Isaza-Restrepo A, Rosero G, Arias-Amézquita F, Raptis D, Gaedcke J, Reim D, Izbicki J, Egberts J, Dikinis S, Kjaer D, Larsen M, Achiam M, Saarnio J, Theodorou D, Liakakos T, Korkolis D, Robb W, Collins C, Murphy T, Reynolds J, Tonini V, Migliore M, Bonavina L, Valmasoni M, Bardini R, Weindelmayer J, Terashima M, White R, Alghunaim E, Elhadi M, Leon-Takahashi A, Medina-Franco H, Lau P, Okonta K, Heisterkamp J, Rosman C, van Hillegersberg R, Beban G, Babor R, Gordon A, Rossaak J, Pal K, Qureshi A, Naqi S, Syed A, Barbosa J, Vicente C, Leite J, Freire J, Casaca R, Costa R, Scurtu R, Mogoanta S, Bolca C, Constantinoiu S, Sekhniaidze D, Bjelović M, So J, Gačevski G, Loureiro C, Pera M, Bianchi A, Moreno Gijón M, Martín Fernández J, Trugeda Carrera M, Vallve-Bernal M, Cítores Pascual M, Elmahi S, Halldestam I, Hedberg J, Mönig S, Gutknecht S, Tez M, Guner A, Tirnaksiz M, Colak E, Sevinç B, Hindmarsh A, Khan I, Khoo D, Byrom R, Gokhale J, Wilkerson P, Jain P, Chan D, Robertson K, Iftikhar S, Skipworth R, Forshaw M, Higgs S, Gossage J, Nijjar R, Viswanath Y, Turner P, Dexter S, Boddy A, Allum W, Oglesby S, Cheong E, Beardsmore D, Vohra R, Maynard N, Berrisford R, Mercer S, Puig S, Melhado R, Kelty C, Underwood T, Dawas K, Lewis W, Al-Bahrani A, Bryce G, Thomas M, Arndt A, Palazzo F, Meguid R, Fergusson J, Beenen E, Mosse C, Salim J, Cheah S, Wright T, Cerdeira M, McQuillan P, Richardson M, Liem H, Spillane J, Yacob M, Albadawi F, Thorpe T, Dingle A, Cabalag C, Loi K, Fisher O, Ward S, Read M, Johnson M, Bassari R, Bui H, Cecconello I, Sallum R, da Rocha J, Lopes L, Tercioti V, Coelho J, Ferrer J, Buduhan G, Tan L, Srinathan S, Shea P, Yeung J, Allison F, Carroll P, Vargas-Barato F, Gonzalez F, Ortega J, Nino-Torres L, Beltrán-García T, Castilla L, Pineda M, Bastidas A, Gómez-Mayorga J, Cortés N, Cetares C, Caceres S, Duarte S, Pazdro A, Snajdauf M, Faltova H, Sevcikova M, Mortensen P, Katballe N, Ingemann T, Morten B, Kruhlikava I, Ainswort A, Stilling N, Eckardt J, Holm J, Thorsteinsson M, Siemsen M, Brandt B, Nega B, Teferra E, Tizazu A, Kauppila J, Koivukangas V, Meriläinen S, Gruetzmann R, Krautz C, Weber G, Golcher H, Emons G, Azizian A, Ebeling M, Niebisch S, Kreuser N, Albanese G, Hesse J, Volovnik L, Boecher U, Reeh M, Triantafyllou S, Schizas D, Michalinos A, Balli E, Mpoura M, Charalabopoulos A, Manatakis D, Balalis D, Bolger J, Baban C, Mastrosimone A, McAnena O, Quinn A, Ó Súilleabháin C, Hennessy M, Ivanovski I, Khizer H, Ravi N, Donlon N, Cervellera M, Vaccari S, Bianchini S, Sartarelli L, Asti E, Bernardi D, Merigliano S, Provenzano L, Scarpa M, Saadeh L, Salmaso B, De Manzoni G, Giacopuzzi S, La Mendola R, De Pasqual C, Tsubosa Y, Niihara M, Irino T, Makuuchi R, Ishii K, Mwachiro M, Fekadu A, Odera A, Mwachiro E, AlShehab D, Ahmed H, Shebani A, Elhadi A, Elnagar F, Elnagar H, Makkai-Popa S, Wong L, Tan Y, Thannimalai S, Ho C, Pang W, Tan J, Basave H, Cortés-González R, Lagarde S, van Lanschot J, Cords C, Jansen W, Martijnse I, Matthijsen R, Bouwense S, Klarenbeek B, Verstegen M, van Workum F, Ruurda J, van der Sluis P, de Maat M, Evenett N, Johnston P, Patel R, MacCormick A, Young M, Smith B, Ekwunife C, Memon A, Shaikh K, Wajid A, Khalil N, Haris M, Mirza Z, Qudus S, Sarwar M, Shehzadi A, Raza A, Jhanzaib M, Farmanali J, Zakir Z, Shakeel O, Nasir I, Khattak S, Baig M, MA N, Ahmed H, Naeem A, Pinho A, da Silva R, Bernardes A, Campos J, Matos H, Braga T, Monteiro C, Ramos P, Cabral F, Gomes M, Martins P, Correia A, Videira J, Ciuce C, Drasovean R, Apostu R, Ciuce C, Paitici S, Racu A, Obleaga C, Beuran M, Stoica B, Ciubotaru C, Negoita V, Cordos I, Birla R, Predescu D, Hoara P, Tomsa R, Shneider V, Agasiev M, Ganjara I, Gunjić D, Veselinović M, Babič T, Chin T, Shabbir A, Kim G, Crnjac A, Samo H, Díez del Val I, Leturio S, Ramón J, Dal Cero M, Rifá S, Rico M, Pagan Pomar A, Martinez Corcoles J, Rodicio Miravalles J, Pais S, Turienzo S, Alvarez L, Campos P, Rendo A, García S, Santos E, Martínez E, Fernández Díaz M, Magadán Álvarez C, Concepción Martín V, Díaz López C, Rosat Rodrigo A, Pérez Sánchez L, Bailón Cuadrado M, Tinoco Carrasco C, Choolani Bhojwani E, Sánchez D, Ahmed M, Dzhendov T, Lindberg F, Rutegård M, Sundbom M, Mickael C, Colucci N, Schnider A, Er S, Kurnaz E, Turkyilmaz S, Turkyilmaz A, Yildirim R, Baki B, Akkapulu N, Karahan O, Damburaci N, Hardwick R, Safranek P, Sujendran V, Bennett J, Afzal Z, Shrotri M, Chan B, Exarchou K, Gilbert T, Amalesh T, Mukherjee D, Mukherjee S, Wiggins T, Kennedy R, McCain S, Harris A, Dobson G, Davies N, Wilson I, Mayo D, Bennett D, Young R, Manby P, Blencowe N, Schiller M, Byrne B, Mitton D, Wong V, Elshaer A, Cowen M, Menon V, Tan L, McLaughlin E, Koshy R, Sharp C, Brewer H, Das N, Cox M, Al Khyatt W, Worku D, Iqbal R, Walls L, McGregor R, Fullarton G, Macdonald A, MacKay C, Craig C, Dwerryhouse S, Hornby S, Jaunoo S, Wadley M, Baker C, Saad M, Kelly M, Davies A, Di Maggio F, McKay S, Mistry P, Singhal R, Tucker O, Kapoulas S, Powell-Brett S, Davis P, Bromley G, Watson L, Verma R, Ward J, Shetty V, Ball C, Pursnani K, Sarela A, Sue Ling H, Mehta S, Hayden J, To N, Palser T, Hunter D, Supramaniam K, Butt Z, Ahmed A, Kumar S, Chaudry A, Moussa O, Kordzadeh A, Lorenzi B, Wilson M, Patil P, Noaman I, Willem J, Bouras G, Evans R, Singh M, Warrilow H, Ahmad A, Tewari N, Yanni F, Couch J, Theophilidou E, Reilly J, Singh P, van Boxel Gijs, Akbari K, Zanotti D, Sgromo B, Sanders G, Wheatley T, Ariyarathenam A, Reece-Smith A, Humphreys L, Choh C, Carter N, Knight B, Pucher P, Athanasiou A, Mohamed I, Tan B, Abdulrahman M, Vickers J, Akhtar K, Chaparala R, Brown R, Alasmar M, Ackroyd R, Patel K, Tamhankar A, Wyman A, Walker R, Grace B, Abbassi N, Slim N, Ioannidi L, Blackshaw G, Havard T, Escofet X, Powell A, Owera A, Rashid F, Jambulingam P, Padickakudi J, Ben-Younes H, Mccormack K, Makey I, Karush M, Seder C, Liptay M, Chmielewski G, Rosato E, Berger A, Zheng R, Okolo E, Singh A, Scott C, Weyant M, Mitchell J. The influence of anastomotic techniques on postoperative anastomotic complications: Results of the Oesophago-Gastric Anastomosis Audit. J Thorac Cardiovasc Surg 2022; 164:674-684.e5. [PMID: 35249756 DOI: 10.1016/j.jtcvs.2022.01.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/22/2021] [Accepted: 01/18/2022] [Indexed: 12/08/2022]
Abstract
BACKGROUND The optimal anastomotic techniques in esophagectomy to minimize rates of anastomotic leakage and conduit necrosis are not known. The aim of this study was to assess whether the anastomotic technique was associated with anastomotic failure after esophagectomy in the international Oesophago-Gastric Anastomosis Audit cohort. METHODS This prospective observational multicenter cohort study included patients undergoing esophagectomy for esophageal cancer over 9 months during 2018. The primary exposure was the anastomotic technique, classified as handsewn, linear stapled, or circular stapled. The primary outcome was anastomotic failure, namely a composite of anastomotic leakage and conduit necrosis, as defined by the Esophageal Complications Consensus Group. Multivariable logistic regression modeling was used to identify the association between anastomotic techniques and anastomotic failure, after adjustment for confounders. RESULTS Of the 2238 esophagectomies, the anastomosis was handsewn in 27.1%, linear stapled in 21.0%, and circular stapled in 51.9%. Anastomotic techniques differed significantly by the anastomosis sites (P < .001), with the majority of neck anastomoses being handsewn (69.9%), whereas most chest anastomoses were stapled (66.3% circular stapled and 19.3% linear stapled). Rates of anastomotic failure differed significantly among the anastomotic techniques (P < .001), from 19.3% in handsewn anastomoses, to 14.0% in linear stapled anastomoses, and 12.1% in circular stapled anastomoses. This effect remained significant after adjustment for confounding factors on multivariable analysis, with an odds ratio of 0.63 (95% CI, 0.46-0.86; P = .004) for circular stapled versus handsewn anastomosis. However, subgroup analysis by anastomosis site suggested that this effect was predominantly present in neck anastomoses, with anastomotic failure rates of 23.2% versus 14.6% versus 5.9% for handsewn versus linear stapled anastomoses versus circular stapled neck anastomoses, compared with 13.7% versus 13.8% versus 12.2% for chest anastomoses. CONCLUSIONS Handsewn anastomoses appear to be independently associated with higher rates of anastomotic failure compared with stapled anastomoses. However, this effect seems to be largely confined to neck anastomoses, with minimal differences between techniques observed for chest anastomoses. Further research into standardization of anastomotic approach and techniques may further improve outcomes.
Collapse
|
48
|
Supehia S, Bahurupi Y, Singh M, Goel S, Kishore S, Aggarwal P, Sharma N. Compliance of vendors with legislation restricting the sale of tobacco near educational institutions in India. Int J Tuberc Lung Dis 2022; 26:883-885. [PMID: 35996286 DOI: 10.5588/ijtld.22.0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- S Supehia
- Department of Community and Family Medicine, Dr Rajendra Prasad Government Medical College, Kangra, India
| | - Y Bahurupi
- Department of Community and Family Medicine, All India Institute of Medical Sciences (AIIMS), Rishikesh, India
| | - M Singh
- Department of Community and Family Medicine, All India Institute of Medical Sciences (AIIMS), Rishikesh, India
| | - S Goel
- Department of Community Medicine, School of Public Health, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | | | - P Aggarwal
- Department of Community and Family Medicine, All India Institute of Medical Sciences (AIIMS), Rishikesh, India
| | - N Sharma
- Department of Community and Family Medicine, All India Institute of Medical Sciences (AIIMS), Rishikesh, India
| |
Collapse
|
49
|
Joshi R, Sekar A, Nada R, Nahar U, Bal A, Mitra S, Singh M, Rathi M, Kohli H, Aggarwal A, Singh I, Jain S, Radotra B. POS-031 Renal histomorphology in COVID autopsies - An institutional experience. Kidney Int Rep 2022. [PMCID: PMC9475104 DOI: 10.1016/j.ekir.2022.07.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
50
|
Kaur R, Mishra S, Nevolin I, Roy Choudhury D, Singh M. Nutritional anemia: Patent landscape. World Patent Information 2022. [DOI: 10.1016/j.wpi.2022.102123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|