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Faustino M, Pereira JO, Pereira AM, Oliveira AS, Ferreira CMH, Pereira CF, Durão J, Pintado ME, Carvalho AP. Vaginal prevention of Candida albicans: synergistic effect of lactobacilli and mannan oligosaccharides (MOS). Appl Microbiol Biotechnol 2024; 108:73. [PMID: 38194142 PMCID: PMC10776728 DOI: 10.1007/s00253-023-12909-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024]
Abstract
Vulvovaginal candidiasis (VVC) affects approximately 30-50% of women at least once during their lifetime, causing uncomfortable symptoms and limitations in their daily quality of life. Antifungal therapy is not very effective, does not prevent recurrencies and usually causes side effects. Therefore, alternative therapies are urgently needed. The goal of this work was to investigate the potential benefits of using mannan oligosaccharides (MOS) extracts together with a Lactobacillus sp. pool, composed by the most significant species present in the vaginal environment, to prevent infections by Candida albicans. Microbial growth of isolated strains of the main vaginal lactobacilli and Candida strains was assessed in the presence of MOS, to screen their impact upon growth. A pool of the lactobacilli was then tested against C. albicans in competition and prophylaxis studies; bacterial and yeast cell numbers were quantified in specific time points, and the above-mentioned studies were assessed in simulated vaginal fluid (SVF). Finally, adhesion to vaginal epithelial cells (HeLa) was also evaluated, once again resorting to simultaneous exposure (competition) or prophylaxis assays, aiming to measure the effect of MOS presence in pathogen adherence. Results demonstrated that MOS extracts have potential to prevent vaginal candidiasis in synergy with vaginal lactobacilli, with improved results than those obtained when using lactobacilli alone. KEY POINTS: Potential benefits of MOS extracts with vaginal lactobacilli to prevent C. albicans infections. MOS impacts on growth of vaginal lactobacilli pool and C. albicans in SVF. MOS extracts in synergy with L. crispatus inhibit C. albicans adhesion in HeLa cells.
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Affiliation(s)
- Margarida Faustino
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Joana Odila Pereira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal.
| | - Ana Margarida Pereira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal
| | - Ana Sofia Oliveira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Carlos M H Ferreira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal
| | - Carla F Pereira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Joana Durão
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal
| | - Manuela E Pintado
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Ana P Carvalho
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
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Sánchez-Queija I, Domínguez-Alarcón P, Díez M, Parra Á. Identity development and adjustment during emerging adulthood from a gender perspective. Br J Dev Psychol 2024; 42:133-148. [PMID: 38009815 DOI: 10.1111/bjdp.12470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/29/2023]
Abstract
Identity development is a key task during emerging adulthood. The goals of the present study are to validate the Spanish version of the Dimensions of Identity Development Scale (DIDS) and to explore the relationship between identity dimensions and adjustment (flourishing and distress), from a gender perspective. The sample comprised 1502 Spanish university students (60.1% women). The results reveal that the DIDS is valid in the Spanish context and that significant gender differences were observed in some dimensions of identity development, with men scoring higher for identification with commitment and women scoring higher for exploration in depth and ruminative exploration. Finally, both dimensions of commitment and ruminative exploration had a stronger effect on men's than on women's adjustment, suggesting that the integration of the self has more impact on men's outcomes than on women's. These findings highlight the need to include the gender perspective in all future research in order to gain deeper insight into the relationship between the identity development process and adjustment during emerging adulthood.
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Affiliation(s)
| | - Paula Domínguez-Alarcón
- Department of Developmental Psychology and Education, Universidad de Sevilla, Seville, Spain
| | - Marta Díez
- Department of Developmental Psychology and Education, Universidad de Sevilla, Seville, Spain
| | - Águeda Parra
- Department of Developmental Psychology and Education, Universidad de Sevilla, Seville, Spain
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Calderone S, Mauri N, Manga-Robles A, Fornalé S, García-Mir L, Centeno ML, Sánchez-Retuerta C, Ursache R, Acebes JL, Campos N, García-Angulo P, Encina A, Caparrós-Ruiz D. Diverging cell wall strategies for drought adaptation in two maize inbreds with contrasting lodging resistance. Plant Cell Environ 2024; 47:1747-1768. [PMID: 38317308 DOI: 10.1111/pce.14822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/14/2023] [Accepted: 01/07/2024] [Indexed: 02/07/2024]
Abstract
The plant cell wall is a plastic structure of variable composition that constitutes the first line of defence against environmental challenges. Lodging and drought are two stressful conditions that severely impact maize yield. In a previous work, we characterised the cell walls of two maize inbreds, EA2024 (susceptible) and B73 (resistant) to stalk lodging. Here, we show that drought induces distinct phenotypical, physiological, cell wall, and transcriptional changes in the two inbreds, with B73 exhibiting lower tolerance to this stress than EA2024. In control conditions, EA2024 stalks had higher levels of cellulose, uronic acids and p-coumarate than B73. However, upon drought EA2024 displayed increased levels of arabinose-enriched polymers, such as pectin-arabinans and arabinogalactan proteins, and a decreased lignin content. By contrast, B73 displayed a deeper rearrangement of cell walls upon drought, including modifications in lignin composition (increased S subunits and S/G ratio; decreased H subunits) and an increase of uronic acids. Drought induced more substantial changes in gene expression in B73 compared to EA2024, particularly in cell wall-related genes, that were modulated in an inbred-specific manner. Transcription factor enrichment assays unveiled inbred-specific regulatory networks coordinating cell wall genes expression. Altogether, these findings reveal that B73 and EA2024 inbreds, with opposite stalk-lodging phenotypes, undertake different cell wall modification strategies in response to drought. We propose that the specific cell wall composition conferring lodging resistance to B73, compromises its cell wall plasticity, and renders this inbred more susceptible to drought.
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Affiliation(s)
- Silvia Calderone
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
| | - Nuria Mauri
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
| | | | - Silvia Fornalé
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
| | - Lluís García-Mir
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
| | | | - Camila Sánchez-Retuerta
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
| | - Robertas Ursache
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
| | | | - Narciso Campos
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | | | - Antonio Encina
- Area de Fisiología Vegetal, Universidad de León, León, Spain
| | - David Caparrós-Ruiz
- Centre for Research in Agricultural Genomics (CRAG) Consorci CSIC-IRTA-UAB-UB Edifici CRAG Campus de Bellaterra de la UAB, Cerdanyola del Valles, Barcelona, Spain
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Rauscher FG, Elze T, Francke M, Martinez-Perez ME, Li Y, Wirkner K, Tönjes A, Engel C, Thiery J, Blüher M, Stumvoll M, Kirsten T, Loeffler M, Ebert T, Wang M. Glucose tolerance and insulin resistance/sensitivity associate with retinal layer characteristics: the LIFE-Adult-Study. Diabetologia 2024; 67:928-939. [PMID: 38431705 PMCID: PMC10954961 DOI: 10.1007/s00125-024-06093-9] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 11/08/2023] [Indexed: 03/05/2024]
Abstract
AIMS/HYPOTHESIS As the prevalence of insulin resistance and glucose intolerance is increasing throughout the world, diabetes-induced eye diseases are a global health burden. We aim to identify distinct optical bands which are closely related to insulin and glucose metabolism, using non-invasive, high-resolution spectral domain optical coherence tomography (SD-OCT) in a large, population-based dataset. METHODS The LIFE-Adult-Study randomly selected 10,000 participants from the population registry of Leipzig, Germany. Cross-sectional, standardised phenotyping included the assessment of various metabolic risk markers and ocular imaging, such as SD-OCT-derived thicknesses of ten optical bands of the retina. Global and Early Treatment Diabetic Retinopathy Study (ETDRS) subfield-specific optical retinal layer thicknesses were investigated in 7384 healthy eyes of 7384 participants from the LIFE-Adult-Study stratified by normal glucose tolerance, prediabetes (impaired fasting glucose and/or impaired glucose tolerance and/or HbA1c 5.7-6.4% [39-47 mmol/mol]) and diabetes. The association of optical retinal band characteristics with different indices of glucose tolerance (e.g. fasting glucose, area under the glucose curve), insulin resistance (e.g. HOMA2-IR, triglyceride glucose index), or insulin sensitivity (e.g. estimated glucose disposal rate [eGDR], Stumvoll metabolic clearance rate) was determined using multivariable linear regression analyses for the individual markers adjusted for age, sex and refraction. Various sensitivity analyses were performed to validate the observed findings. RESULTS In the study cohort, nine out of ten optical bands of the retina showed significant sex- and glucose tolerance-dependent differences in band thicknesses. Multivariable linear regression analyses revealed a significant, independent, and inverse association between markers of glucose intolerance and insulin resistance (e.g. HOMA2-IR) with the thickness of the optical bands representing the anatomical retinal outer nuclear layer (ONL, standardised β=-0.096; p<0.001 for HOMA2-IR) and myoid zone (MZ; β=-0.096; p<0.001 for HOMA2-IR) of the photoreceptors. Conversely, markers of insulin sensitivity (e.g. eGDR) positively and independently associated with ONL (β=0.090; p<0.001 for eGDR) and MZ (β=0.133; p<0.001 for eGDR) band thicknesses. These global associations were confirmed in ETDRS subfield-specific analyses. Sensitivity analyses further validated our findings when physical activity, neuroanatomical cell/tissue types and ETDRS subfield categories were investigated after stratifying the cohort by glucose homeostasis. CONCLUSIONS/INTERPRETATION An impaired glucose homeostasis associates with a thinning of the optical bands of retinal ONL and photoreceptor MZ. Changes in ONL and MZ thicknesses might predict early metabolic retinal alterations in diabetes.
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Affiliation(s)
- Franziska G Rauscher
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Institute for Medical Informatics, Statistics, and Epidemiology (IMISE), Leipzig University, Leipzig, Germany
- Department of Medical Data Science, University of Leipzig Medical Center, Leipzig, Germany
| | - Tobias Elze
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Schepens Eye Research Institute of Mass Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Mike Francke
- Institute for Medical Informatics, Statistics, and Epidemiology (IMISE), Leipzig University, Leipzig, Germany
| | - M Elena Martinez-Perez
- Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Yangjiani Li
- Schepens Eye Research Institute of Mass Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Kerstin Wirkner
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Institute for Medical Informatics, Statistics, and Epidemiology (IMISE), Leipzig University, Leipzig, Germany
| | - Anke Tönjes
- Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
| | - Christoph Engel
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Institute for Medical Informatics, Statistics, and Epidemiology (IMISE), Leipzig University, Leipzig, Germany
| | - Joachim Thiery
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig University, Leipzig, Germany
| | - Matthias Blüher
- Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany
| | - Michael Stumvoll
- Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
| | - Toralf Kirsten
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Institute for Medical Informatics, Statistics, and Epidemiology (IMISE), Leipzig University, Leipzig, Germany
- Department of Medical Data Science, University of Leipzig Medical Center, Leipzig, Germany
| | - Markus Loeffler
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Institute for Medical Informatics, Statistics, and Epidemiology (IMISE), Leipzig University, Leipzig, Germany
| | - Thomas Ebert
- Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany.
| | - Mengyu Wang
- Leipzig Research Centre for Civilization Diseases (LIFE), Leipzig University, Leipzig, Germany
- Schepens Eye Research Institute of Mass Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
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Tremblay-Franco M, Canlet C, Carriere A, Nakhle J, Galinier A, Portais JC, Yart A, Dray C, Lu WH, Bertrand Michel J, Guyonnet S, Rolland Y, Vellas B, Delrieu J, Barreto PDS, Pénicaud L, Casteilla L, Ader I. Integrative Multimodal Metabolomics to Early Predict Cognitive Decline Among Amyloid Positive Community-Dwelling Older Adults. J Gerontol A Biol Sci Med Sci 2024; 79:glae077. [PMID: 38452244 PMCID: PMC11000317 DOI: 10.1093/gerona/glae077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Indexed: 03/09/2024] Open
Abstract
Alzheimer's disease is strongly linked to metabolic abnormalities. We aimed to distinguish amyloid-positive people who progressed to cognitive decline from those who remained cognitively intact. We performed untargeted metabolomics of blood samples from amyloid-positive individuals, before any sign of cognitive decline, to distinguish individuals who progressed to cognitive decline from those who remained cognitively intact. A plasma-derived metabolite signature was developed from Supercritical Fluid chromatography coupled with high-resolution mass spectrometry (SFC-HRMS) and nuclear magnetic resonance (NMR) metabolomics. The 2 metabolomics data sets were analyzed by Data Integration Analysis for Biomarker discovery using Latent approaches for Omics studies (DIABLO), to identify a minimum set of metabolites that could describe cognitive decline status. NMR or SFC-HRMS data alone cannot predict cognitive decline. However, among the 320 metabolites identified, a statistical method that integrated the 2 data sets enabled the identification of a minimal signature of 9 metabolites (3-hydroxybutyrate, citrate, succinate, acetone, methionine, glucose, serine, sphingomyelin d18:1/C26:0 and triglyceride C48:3) with a statistically significant ability to predict cognitive decline more than 3 years before decline. This metabolic fingerprint obtained during this exploratory study may help to predict amyloid-positive individuals who will develop cognitive decline. Due to the high prevalence of brain amyloid-positivity in older adults, identifying adults who will have cognitive decline will enable the development of personalized and early interventions.
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Affiliation(s)
- Marie Tremblay-Franco
- Toxalim (Research Center in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
- Metatoul-AXIOM Platform, MetaboHUB, Toxalim, INRAE, Toulouse, France
| | - Cécile Canlet
- Toxalim (Research Center in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
- Metatoul-AXIOM Platform, MetaboHUB, Toxalim, INRAE, Toulouse, France
| | - Audrey Carriere
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
| | - Jean Nakhle
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
| | - Anne Galinier
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
- Institut Fédératif de Biologie, CHU Purpan, Toulouse, France
| | - Jean-Charles Portais
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
- MetaboHUB-MetaToul, National Infrastructure of Metabolomics and Fluxomics, Toulouse Biotechnology Institute, INSA de Toulouse INSA/CNRS 5504 - UMR INSA/INRA 792,Toulouse, France
| | - Armelle Yart
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
| | - Cédric Dray
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
| | - Wan-Hsuan Lu
- Gérontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France
- CERPOP UMR 1295, University of Toulouse III, INSERM, UPS, Toulouse, France
| | - Justine Bertrand Michel
- Lipidomic, MetaboHUB-MetaToul, National Infrastructure of Metabolomics and Fluxomics, Toulouse, France
- I2MC, Université de Toulouse, Inserm, Université Toulouse III - Paul Sabatier (UPS), Toulouse, France (Biological Sciences Section)
| | - Sophie Guyonnet
- Gérontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France
- CERPOP UMR 1295, University of Toulouse III, INSERM, UPS, Toulouse, France
| | - Yves Rolland
- Gérontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France
- CERPOP UMR 1295, University of Toulouse III, INSERM, UPS, Toulouse, France
| | - Bruno Vellas
- Gérontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France
- CERPOP UMR 1295, University of Toulouse III, INSERM, UPS, Toulouse, France
| | - Julien Delrieu
- Gérontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France
- CERPOP UMR 1295, University of Toulouse III, INSERM, UPS, Toulouse, France
| | - Philippe de Souto Barreto
- Gérontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France
- CERPOP UMR 1295, University of Toulouse III, INSERM, UPS, Toulouse, France
| | - Luc Pénicaud
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
| | - Louis Casteilla
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
| | - Isabelle Ader
- Institut RESTORE, UMR 1301 INSERM, 5070 CNRS, Université Paul Sabatier, Toulouse, France
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Froese V, Goubergrits L, Kertzscher U, Lommel M. Experimental validation of the power law hemolysis model using a Couette shearing device. Artif Organs 2024; 48:495-503. [PMID: 38146895 DOI: 10.1111/aor.14702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/22/2023] [Accepted: 12/12/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND The study of blood trauma, such as hemolysis in blood-carrying devices, is crucial due to the high incidence of adverse events like alteration of blood function, bleeding, and multi-organ failure. The extent of flow-induced hemolysis, predominantly influenced by stress duration and intensity, is described by established model parameters based on the power law approach. In recent years, various parameters were determined using different Couette shearing devices and donor species. However, they have not been validated due to limited experimental data. METHODS This study provides hemolysis measurements in a Couette shearing device and evaluates the suitability of different power law parameters. The revised Couette shearing device generates well-defined dynamic stress loads that are repeatedly applied to blood samples at a defined temperature. Human blood samples with an adjusted hematocrit of 30%, were tested with varying repetitions (20 to 80 times). The half-sinusoidal stress loads had amplitudes of 73 to 140 Pa and exposure times of 24 msec per repetition. The parameters of five common power law hemolysis approaches were then compared with the experimental data. RESULTS The prediction with the power law model parameters C = 3.458 × 10-6, α = 0.2777 and β = 2.0639 showed a good agreement with the experimental results. CONCLUSION The effect of multiple short-time stresses on hemolysis was investigated to validate the power law hemolysis model with the Couette shearing device of this study.
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Affiliation(s)
- Vera Froese
- Institute of Computer-assisted Cardiovascular Medicine, Biofluid Mechanics Laboratory, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Leonid Goubergrits
- Institute of Computer-assisted Cardiovascular Medicine, Biofluid Mechanics Laboratory, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Ulrich Kertzscher
- Institute of Computer-assisted Cardiovascular Medicine, Biofluid Mechanics Laboratory, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Michael Lommel
- Institute of Computer-assisted Cardiovascular Medicine, Biofluid Mechanics Laboratory, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
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Pogledic I, Bobić‐Rasonja M, Mitter C, Štajduhar A, Schwartz E, Milković‐Periša M, Baltzer PA, Lequin M, Krampl‐Bettelheim E, Kasprian G, Judaš M, Prayer D, Jovanov‐Milosevic N. Fetal indusium griseum is a possible biomarker of the regularity of brain midline development in 3T MR imaging: A retrospective observational study. Acta Obstet Gynecol Scand 2024; 103:897-906. [PMID: 38339766 PMCID: PMC11019519 DOI: 10.1111/aogs.14781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/04/2023] [Accepted: 01/03/2024] [Indexed: 02/12/2024]
Abstract
INTRODUCTION This study aimed to assess the visibility of the indusium griseum (IG) in magnetic resonance (MR) scans of the human fetal brain and to evaluate its reliability as an imaging biomarker of the normality of brain midline development. MATERIAL AND METHODS The retrospective observational study encompassed T2-w 3T MR images from 90 post-mortem fetal brains and immunohistochemical sections from 41 fetal brains (16-40 gestational weeks) without cerebral pathology. Three raters independently inspected and evaluated the visibility of IG in post-mortem and in vivo MR scans. Weighted kappa statistics and regression analysis were used to determine inter- and intra-rater agreement and the type and strength of the association of IG visibility with gestational age. RESULTS The visibility of the IG was the highest between the 25 and 30 gestational week period, with a very good inter-rater variability (kappa 0.623-0.709) and excellent intra-rater variability (kappa 0.81-0.93). The immunochemical analysis of the histoarchitecture of IG discloses the expression of highly hydrated extracellular molecules in IG as the substrate of higher signal intensity and best visibility of IG during the mid-fetal period. CONCLUSIONS The knowledge of developmental brain histology and fetal age allows us to predict the IG-visibility in magnetic resonance imaging (MRI) and use it as a biomarker to evaluate the morphogenesis of the brain midline. As a biomarker, IG is significant for post-mortem pathological examination by MRI. Therefore, in the clinical in vivo imaging examination, IG should be anticipated when an assessment of the brain midline structures is needed in mid-gestation, including corpus callosum thickness measurements.
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Affiliation(s)
- Ivana Pogledic
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image‐guided Therapy, Allgemeines KrankenhausMedical University of ViennaViennaAustria
| | - Mihaela Bobić‐Rasonja
- Department of BiologySchool of Medicine, University of ZagrebZagrebCroatia
- Croatian Institute for Brain Research, Scientific Center of Excellence for Basic, Clinical and Translational NeuroscienceSchool of Medicine University of ZagrebZagrebCroatia
| | - Christian Mitter
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image‐guided Therapy, Allgemeines KrankenhausMedical University of ViennaViennaAustria
- Department of Systematic Anatomy, Center for Anatomy and Cell BiologyMedical University of ViennaViennaAustria
| | - Andrija Štajduhar
- Croatian Institute for Brain Research, Scientific Center of Excellence for Basic, Clinical and Translational NeuroscienceSchool of Medicine University of ZagrebZagrebCroatia
- School of MedicineSchool of Public Health “Andrija Štampar” University of ZagrebZagrebCroatia
| | - Ernst Schwartz
- Computational Imaging Research Lab, Department of Biomedical Imaging and Image‐Guided TherapyMedical University of ViennaViennaAustria
| | - Marija Milković‐Periša
- Department of Pathology and Cytology, School of MedicineUniversity Hospital Center Zagreb, University of ZagrebZagrebCroatia
| | - Pascal A. Baltzer
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image‐guided Therapy, Allgemeines KrankenhausMedical University of ViennaViennaAustria
| | - Maarten Lequin
- Department of RadiologyUniversity Medical Center UtrechtUtrechtThe Netherlands
| | | | - Gregor Kasprian
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image‐guided Therapy, Allgemeines KrankenhausMedical University of ViennaViennaAustria
| | - Miloš Judaš
- Croatian Institute for Brain Research, Scientific Center of Excellence for Basic, Clinical and Translational NeuroscienceSchool of Medicine University of ZagrebZagrebCroatia
| | - Daniela Prayer
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image‐guided Therapy, Allgemeines KrankenhausMedical University of ViennaViennaAustria
| | - Natasa Jovanov‐Milosevic
- Department of BiologySchool of Medicine, University of ZagrebZagrebCroatia
- Croatian Institute for Brain Research, Scientific Center of Excellence for Basic, Clinical and Translational NeuroscienceSchool of Medicine University of ZagrebZagrebCroatia
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8
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Hodzelmans JJA, Janssen MLF, Reulen JPH, Blijham PJ, Koster A, Stehouwer CDA, Mess WH, Sutedja NA. Reference values for nerve conduction studies of the peroneal, tibial, and sural nerve derived from a large population-based cohort: Associations with demographic and anthropometric characteristics-The Maastricht study. Muscle Nerve 2024; 69:588-596. [PMID: 38459960 DOI: 10.1002/mus.28076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/11/2024]
Abstract
INTRODUCTION/AIMS Nerve conduction studies (NCSs) are widely used to support the clinical diagnosis of neuromuscular disorders. The aims of this study were to obtain reference values for peroneal, tibial, and sural NCSs and to examine the associations with demographic and anthropometric factors. METHODS In 5099 participants (aged 40-79 years) without type 2 diabetes of The Maastricht Study, NCSs of peroneal, tibial, and sural nerves were performed. Values for compound muscle action potential (CMAP) and sensory nerve action potential amplitude, nerve conduction velocity (NCV), and distal latency were acquired. The association of age, sex, body mass index (BMI), and height with NCS values was determined using uni- and multivariate linear regression analyses. RESULTS Detailed reference values are reported per decade for men and women. Significantly lower NCVs and longer distal latencies were observed in all nerves in older and taller individuals as well as in men. In these groups, amplitudes of the tibial and sural nerves were significantly lower, whereas a lower peroneal nerve CMAP was only significantly associated with age. BMI showed a multidirectional association. After correction for anthropometric factors in the multivariate analysis, the association between sex and NCS values was less straightforward. DISCUSSION These values from a population-based dataset could be used as a reference for generating normative values. Our findings show the association of NCS values with anthropometric factors. In clinical practice, these factors can be considered when interpreting NCS values.
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Affiliation(s)
- Jurriaan J A Hodzelmans
- Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Marcus L F Janssen
- Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands
- School for Mental Health and Neuroscience (MHeNS), Maastricht University, Maastricht, The Netherlands
| | - Jos P H Reulen
- Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Paul J Blijham
- Department of Clinical Neurophysiology, Máxima Medical Center, Veldhoven, The Netherlands
| | - Annemarie Koster
- CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
- Department of Social Medicine, Maastricht University, Maastricht, The Netherlands
| | - Coen D A Stehouwer
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, The Netherlands
- Department of Internal Medicine, Maastricht University, Maastricht, The Netherlands
| | - Werner H Mess
- Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Nadia A Sutedja
- Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands
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9
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Vučković F, Novokmet M, Šoić D, Štambuk J, Kolčić I, Polašek O, Lauc G, Gornik O, Keser T. Variability of human Alpha-1-acid glycoprotein N-glycome in a Caucasian population. Glycobiology 2024; 34:cwae031. [PMID: 38591797 DOI: 10.1093/glycob/cwae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/10/2024] Open
Abstract
AIM Alpha-1-acid glycoprotein (AGP) is a highly glycosylated protein in human plasma and one of the most abundant acute phase proteins in humans. Glycosylation plays a crucial role in its biological functions, and alterations in AGP N-glycome have been associated with various diseases and inflammatory conditions. However, large-scale studies of AGP N-glycosylation in the general population are lacking. METHODS Using recently developed high-throughput glycoproteomic workflow for site-specific AGP N-glycosylation analysis, 803 individuals from the Croatian island of Korcula were analyzed and their AGP N-glycome data associated with biochemical and physiological traits, as well as different environmental factors. RESULTS After regression analysis, we found that AGP N-glycosylation is strongly associated with sex, somewhat less with age, along with multiple biochemical and physiological traits (e.g. BMI, triglycerides, uric acid, glucose, smoking status, fibrinogen). CONCLUSION For the first time we have extensively explored the inter-individual variability of AGP N-glycome in a general human population, demonstrating its changes with sex, age, biochemical, and physiological status of individuals, providing the baseline for future population and clinical studies.
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Affiliation(s)
- Frano Vučković
- Genos Glycoscience Research Laboratory, Borongajska cesta 83h, 10000 Zagreb, Croatia
| | - Mislav Novokmet
- Genos Glycoscience Research Laboratory, Borongajska cesta 83h, 10000 Zagreb, Croatia
| | - Dinko Šoić
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Jerko Štambuk
- Genos Glycoscience Research Laboratory, Borongajska cesta 83h, 10000 Zagreb, Croatia
| | - Ivana Kolčić
- Department of Public Health, University of Split School of Medicine, Šoltanska ulica 2A, 21000 Split, Croatia
| | - Ozren Polašek
- Department of Public Health, University of Split School of Medicine, Šoltanska ulica 2A, 21000 Split, Croatia
- Algebra University College, Gradišćanska ulica 24, 10000 Zagreb, Croatia
| | - Gordan Lauc
- Genos Glycoscience Research Laboratory, Borongajska cesta 83h, 10000 Zagreb, Croatia
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Olga Gornik
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Toma Keser
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
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10
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Burgum MJ, Ulrich C, Partosa N, Evans SJ, Gomes C, Seiffert SB, Landsiedel R, Honarvar N, Doak SH. Adapting the in vitro micronucleus assay (OECD Test Guideline No. 487) for testing of manufactured nanomaterials: recommendations for best practices. Mutagenesis 2024; 39:205-217. [PMID: 38502821 DOI: 10.1093/mutage/geae010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 03/18/2024] [Indexed: 03/21/2024] Open
Abstract
The current Organisation for Economic Co-Operation and Development test guideline number 487 (OECD TG No. 487) provides instruction on how to conduct the in vitro micronucleus assay. This assay is one of the gold standard approaches for measuring the mutagenicity of test items; however, it is directed at testing low molecular weight molecules and may not be appropriate for particulate materials (e.g. engineered nanoparticles [ENPs]). This study aimed to adapt the in vitro micronucleus assay for ENP testing and underpins the development of an OECD guidance document. A harmonized, nano-specific protocol was generated and evaluated by two independent laboratories. Cell lines utilized were human lymphoblastoid (TK6) cells, human liver hepatocytes (HepG2) cells, Chinese hamster lung fibroblast (V79) cells, whole blood, and buffy coat cells from healthy human volunteers. These cells were exposed to reference ENPs from the Joint Research Council (JRC): SiO2 (RLS-0102), Au5nm and Au30nm (RLS-03, RLS-010), CeO2 (NM212), and BaSO4 (NM220). Tungsten carbide-cobalt (WC/Co) was used as a trial particulate positive control. The chemical controls were positive in all cell cultures, but WC/Co was only positive in TK6 and buffy coat cells. In TK6 cells, mutagenicity was observed for SiO2- and both Au types. In HepG2 cells, Au5nm and SiO2 showed sub-two-fold increases in micronuclei. In V79 cells, whole blood, and buffy coat cells, no genotoxicity was detected with the test materials. The data confirmed that ENPs could be tested with the harmonized protocol, additionally, concordant data were observed across the two laboratories with V79 cells. WC/Co may be a suitable particulate positive control in the in vitro micronucleus assay when using TK6 and buffy coat cells. Detailed recommendations are therefore provided to adapt OECD TG No. 487 for testing ENP.
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Affiliation(s)
- Michael J Burgum
- In Vitro Toxicology Group, Faculty of Medicine, Health and Life Sciences, Institute of Life Sciences, Swansea University Medical School, Singleton Park, Swansea, SA2 8PP, Wales, United Kingdom
| | - Clarissa Ulrich
- BASF SE, Experimental Toxicology and Ecology, 67056, Ludwigshafen, Germany
| | - Natascha Partosa
- BASF SE, Experimental Toxicology and Ecology, 67056, Ludwigshafen, Germany
| | - Stephen J Evans
- In Vitro Toxicology Group, Faculty of Medicine, Health and Life Sciences, Institute of Life Sciences, Swansea University Medical School, Singleton Park, Swansea, SA2 8PP, Wales, United Kingdom
| | - Caroline Gomes
- BASF SE, Experimental Toxicology and Ecology, 67056, Ludwigshafen, Germany
| | | | - Robert Landsiedel
- BASF SE, Experimental Toxicology and Ecology, 67056, Ludwigshafen, Germany
- Free University of Berlin, Pharmacy - Pharmacology and Toxicology, 14195 Berlin, Germany
| | - Naveed Honarvar
- BASF SE, Experimental Toxicology and Ecology, 67056, Ludwigshafen, Germany
| | - Shareen H Doak
- In Vitro Toxicology Group, Faculty of Medicine, Health and Life Sciences, Institute of Life Sciences, Swansea University Medical School, Singleton Park, Swansea, SA2 8PP, Wales, United Kingdom
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11
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von Preetzmann N, Zipplies D, Span R, Richter M. Utilization of a High-Pressure Vibrating Tube Densimeter for Liquids at Temperatures Down to 100 K. Int J Thermophys 2024; 45:72. [PMID: 38645609 PMCID: PMC11031472 DOI: 10.1007/s10765-024-03357-9] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 03/16/2024] [Indexed: 04/23/2024]
Abstract
A high-pressure vibrating tube densimeter, specified by the manufacturer for temperatures from (263 to 473) K at pressures up to 140 MPa, was tested at temperatures down to 100 K and from vacuum to pressures up to 10 MPa. To verify the functionality and overall performance under these conditions, the densimeter was calibrated with measurements under vacuum as well as methane and propane as reference fluids. The calibration range is T = (120 to 200) K at pressures from (2.0 to 10.0) MPa. To evaluate the recorded data, two established calibration models were used to describe the dependence of the densimeter's oscillation period on the investigated reference fluids' temperature, pressure, and density. The experiments showed that the vibrating tube densimeter is operational even at temperatures down to 100 K, but exhibits a shift of its vacuum resonance when subjected to thermal cycling at temperatures below 180 K. Accordingly, the calibration models were modified with respect to how the vacuum resonance is considered. Then, the determined calibration parameters reproduce the densities of the reference fluids within ± 0.10 kg·m-3 for the calibration model that performed better for the present study. Measurements on pure ethane and argon validate the calibration of the densimeter. Here, the densities are within (- 0.47 to 0.16) kg·m-3 of values calculated with the respective reference equation of state. The estimated combined expanded uncertainty (k = 2) in density for the validation measurements ranges from (0.52 to 1.13) kg·m-3 or is less than 0.1 % for liquid densities. Supplementary Information The online version of this article (10.1007/s10765-024-03357-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Daniel Zipplies
- Applied Thermodynamics, Chemnitz University of Technology, 09107 Chemnitz, Germany
| | - Roland Span
- Thermodynamics, Ruhr University Bochum, 44780 Bochum, Germany
| | - Markus Richter
- Applied Thermodynamics, Chemnitz University of Technology, 09107 Chemnitz, Germany
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12
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Lindeboom T, Sanchez Olmos MDC, Schulz K, Brinkmann CK, Ramírez Rojas AA, Hochrein L, Schindler D. An Optimized Genotyping Workflow for Identifying Highly SCRaMbLEd Synthetic Yeasts. ACS Synth Biol 2024; 13:1116-1127. [PMID: 38597458 PMCID: PMC11036488 DOI: 10.1021/acssynbio.3c00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 03/01/2024] [Accepted: 03/25/2024] [Indexed: 04/11/2024]
Abstract
Synthetic Sc2.0 yeast strains contain hundreds to thousands of loxPsym recombination sites that allow restructuring of the Saccharomyces cerevisiae genome by SCRaMbLE. Thus, a highly diverse yeast population can arise from a single genotype. The selection of genetically diverse candidates with rearranged synthetic chromosomes for downstream analysis requires an efficient and straightforward workflow. Here we present loxTags, a set of qPCR primers for genotyping across loxPsym sites to detect not only deletions but also inversions and translocations after SCRaMbLE. To cope with the large number of amplicons, we generated qTagGer, a qPCR genotyping primer prediction tool. Using loxTag-based genotyping and long-read sequencing, we show that light-inducible Cre recombinase L-SCRaMbLE can efficiently generate diverse recombination events when applied to Sc2.0 strains containing a linear or a circular version of synthetic chromosome III.
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Affiliation(s)
- Timon
A. Lindeboom
- Max
Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Str. 10, 35043 Marburg, Germany
| | | | - Karina Schulz
- Department
of Molecular Biology, University of Potsdam, Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany
| | - Cedric K. Brinkmann
- Max
Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Str. 10, 35043 Marburg, Germany
| | - Adán A. Ramírez Rojas
- Max
Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Str. 10, 35043 Marburg, Germany
| | - Lena Hochrein
- Department
of Molecular Biology, University of Potsdam, Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany
| | - Daniel Schindler
- Max
Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Str. 10, 35043 Marburg, Germany
- Center
for Synthetic Microbiology, Philipps-University
Marburg, Karl-von-Frisch-Str.
14, 35032Marburg, Germany
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13
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García-Martínez F, Turco E, Schiller F, Ortega JE. CO and O 2 Interaction with Kinked Pt Surfaces. ACS Catal 2024; 14:6319-6327. [PMID: 38660607 PMCID: PMC11037391 DOI: 10.1021/acscatal.4c00435] [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: 01/19/2024] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 04/26/2024]
Abstract
We investigate the chemical interaction of carbon monoxide (CO) and oxygen (O2) with kink atoms on steps of platinum crystal surfaces using a specially designed Pt curved sample. We aim at describing the fundamental stages of the CO oxidation reaction, i.e., CO-covered/poisoned stage and O-covered/active stage, at the poorly known kinked Pt facets by probing CO uptake/saturation and O2 saturation, respectively. Based on the systematic analysis that the curved surface allows, and using high-resolution X-ray photoemission, a diversity of terrace and step/kink species are straightforwardly identified and accurately quantified, defining a smooth structural and chemical variation across different crystal planes. In the CO-saturated case, we observe a preferential adsorption at step edges, where the CO coverage reaches a CO molecule per step Pt atom, significantly higher than their close-packed analogous steps with straight terrace termination. For the O-saturated surface, a significantly higher O coverage is observed in kinked planes compared to the Pt(111) surface. While the strong adsorption of CO at the kinked edges points toward a higher ignition temperature of the CO oxidation at kinks as compared to terraces, the large O coverage at steps may lead to an increased reactivity of kinked surfaces during the active stage of the CO oxidation.
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Affiliation(s)
- Fernando García-Martínez
- Centro
de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizábal 5, San Sebastián 20018, Spain
| | - Elia Turco
- Centro
de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizábal 5, San Sebastián 20018, Spain
| | - Frederik Schiller
- Centro
de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizábal 5, San Sebastián 20018, Spain
| | - J. Enrique Ortega
- Centro
de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizábal 5, San Sebastián 20018, Spain
- Departamento
Física Aplicada, Universidad del
País Vasco, San Sebastián 20018, Spain
- Donostia
International Physics Centre, Manuel Lardizábal 4, San Sebastián 20018, Spain
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14
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Di X, Martinez-Tellez B, Krekels EHJ, Jurado-Fasoli L, Osuna-Prieto FJ, Ortiz-Alvarez L, Hankemeier T, Rensen PCN, Ruiz JR, Kohler I. Higher Plasma Levels of Endocannabinoids and Analogues Correlate With a Worse Cardiometabolic Profile in Young Adults. J Clin Endocrinol Metab 2024; 109:1351-1360. [PMID: 37967236 PMCID: PMC11031222 DOI: 10.1210/clinem/dgad668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 11/04/2023] [Accepted: 11/13/2023] [Indexed: 11/17/2023]
Abstract
CONTEXT The endocannabinoid system (ECS) is a signaling system composed of endocannabinoids (eCBs), their receptors, and the enzymes involved in their synthesis and metabolism. Alterations in the ECS are linked to the development of cardiometabolic diseases. OBJECTIVE Here, we investigated the relationship between plasma levels of eCBs and their analogues with body composition and cardiometabolic risk factors. METHODS The study included 133 young adults (age 22.1 ± 2.2 years, 67% women). Fasting plasma levels of eCBs and their analogues were measured using liquid chromatography-tandem mass spectrometry. Body composition, brown adipose tissue (BAT) volume, glucose uptake, and traditional cardiometabolic risk factors were measured. RESULTS Plasma levels of eCBs and several eCB analogues were positively correlated with adiposity and traditional cardiometabolic risk factors (eg, serum insulin and triacylglyceride levels, all r ≥ 0.17 and P ≤ .045). Plasma levels of 2-arachidonoyl glycerol and N-pentadecenoylethanolamine were negatively correlated with BAT volume and glucose uptake (all r ≤ -0.17 and P ≤ .047). We observed that the plasma levels of eCBs and their analogues were higher in metabolically unhealthy overweight-obese participants than in metabolically healthy overweight-obese participants. CONCLUSION Our findings show that the plasma levels of eCBs and their analogues are related to higher levels of adiposity and worse cardiometabolic profile.
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Affiliation(s)
- Xinyu Di
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research (LACDR), Leiden University, 2333 CC Leiden, The Netherlands
| | - Borja Martinez-Tellez
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
- PROmoting FITness and Health through Physical Activity Research Group (PROFITH), Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
- SPORT Research Group, CERNEP Research Center, University of Almería, 04120 Almería, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 18100 Granada, Spain
| | - Elke H J Krekels
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
| | - Lucas Jurado-Fasoli
- PROmoting FITness and Health through Physical Activity Research Group (PROFITH), Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria, ibs.Granada, 18012 Granada, Spain
| | - Francisco J Osuna-Prieto
- PROmoting FITness and Health through Physical Activity Research Group (PROFITH), Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria, ibs.Granada, 18012 Granada, Spain
| | - Lourdes Ortiz-Alvarez
- PROmoting FITness and Health through Physical Activity Research Group (PROFITH), Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria, ibs.Granada, 18012 Granada, Spain
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, 18071 Granada, Spain
| | - Thomas Hankemeier
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research (LACDR), Leiden University, 2333 CC Leiden, The Netherlands
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Jonatan R Ruiz
- PROmoting FITness and Health through Physical Activity Research Group (PROFITH), Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 18100 Granada, Spain
- Instituto de Investigación Biosanitaria, ibs.Granada, 18012 Granada, Spain
| | - Isabelle Kohler
- Division of BioAnalytical Chemistry, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, 1081 HZ Amsterdam, The Netherlands
- Center for Analytical Sciences Amsterdam, 1081 HZ Amsterdam, The Netherlands
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15
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Augustijnen H, Bätscher L, Cesanek M, Chkhartishvili T, Dincă V, Iankoshvili G, Ogawa K, Vila R, Klopfstein S, de Vos JM, Lucek K. A macroevolutionary role for chromosomal fusion and fission in Erebia butterflies. Sci Adv 2024; 10:eadl0989. [PMID: 38630820 PMCID: PMC11023530 DOI: 10.1126/sciadv.adl0989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/14/2024] [Indexed: 04/19/2024]
Abstract
The impact of large-scale chromosomal rearrangements, such as fusions and fissions, on speciation is a long-standing conundrum. We assessed whether bursts of change in chromosome numbers resulting from chromosomal fusion or fission are related to increased speciation rates in Erebia, one of the most species-rich and karyotypically variable butterfly groups. We established a genome-based phylogeny and used state-dependent birth-death models to infer trajectories of karyotype evolution. We demonstrated that rates of anagenetic chromosomal changes (i.e., along phylogenetic branches) exceed cladogenetic changes (i.e., at speciation events), but, when cladogenetic changes occur, they are mostly associated with chromosomal fissions rather than fusions. We found that the relative importance of fusion and fission differs among Erebia clades of different ages and that especially in younger, more karyotypically diverse clades, speciation is more frequently associated with cladogenetic chromosomal changes. Overall, our results imply that chromosomal fusions and fissions have contrasting macroevolutionary roles and that large-scale chromosomal rearrangements are associated with bursts of species diversification.
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Affiliation(s)
- Hannah Augustijnen
- Department of Environmental Science, University of Basel, 4056 Basel, Switzerland
| | - Livio Bätscher
- Department of Environmental Science, University of Basel, 4056 Basel, Switzerland
| | - Martin Cesanek
- Slovak Entomological Society, Slovak Academy of Sciences, Bratislava 1, Slovakia
| | | | - Vlad Dincă
- Ecology and Genetics Research Unit, University of Oulu, 90570 Oulu, Finland
| | | | - Kota Ogawa
- Faculty of Social and Cultural Studies, Kyushu University, Fukuoka 819-0395, Japan
- Insect Sciences and Creative Entomology Center, Kyushu University, Fukuoka 819-0395, Japan
| | - Roger Vila
- Institut de Biologia Evolutiva (CSIC-Univ. Pompeu Fabra), 08003 Barcelona, Spain
| | - Seraina Klopfstein
- Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Life Sciences, Natural History Museum Basel, 4051 Basel, Switzerland
| | - Jurriaan M. de Vos
- Department of Environmental Science, University of Basel, 4056 Basel, Switzerland
| | - Kay Lucek
- Department of Environmental Science, University of Basel, 4056 Basel, Switzerland
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
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16
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Chaze M, Mériade L, Rochette C, Bailly M, Bingula R, Blavignac C, Duclos M, Evrard B, Fournier AC, Pelissier L, Thivel D. Relying on the French territorial offer of thermal spa therapies to build a care pathway for long COVID-19 patients. PLoS One 2024; 19:e0302392. [PMID: 38640090 PMCID: PMC11029631 DOI: 10.1371/journal.pone.0302392] [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: 06/20/2023] [Accepted: 03/26/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Work on long COVID-19 has mainly focused on clinical care in hospitals. Thermal spa therapies represent a therapeutic offer outside of health care institutions that are nationally or even internationally attractive. Unlike local care (hospital care, general medicine, para-medical care), their integration in the care pathways of long COVID-19 patients seems little studied. The aim of this article is to determine what place french thermal spa therapies can take in the care pathway of long COVID-19 patients. METHODS Based on the case of France, we carry out a geographic mapping analysis of the potential care pathways for long COVID-19 patients by cross-referencing, over the period 2020-2022, the available official data on COVID-19 contamination, hospitalisations in intensive care units and the national offer of spa treatments. This first analysis allows us, by using the method for evaluating the attractiveness of an area defined by David Huff, to evaluate the accessibility of each French department to thermal spas. RESULTS Using dynamic geographical mapping, this study describes two essential criteria for the integration of the thermal spa therapies offer in the care pathways of long COVID-19 patients (attractiveness of spa areas and accessibility to thermal spas) and three fundamental elements for the success of these pathways (continuity of the care pathways; clinical collaborations; adaptation of the financing modalities to each patient). Using a spatial attractiveness method, we make this type of geographical analysis more dynamic by showing the extent to which a thermal spa is accessible to long COVID-19 patients. CONCLUSION Based on the example of the French spa offer, this study makes it possible to place the care pathways of long COVID-19 patients in a wider area (at least national), rather than limiting them to clinical and local management in a hospital setting. The identification and operationalization of two geographical criteria for integrating a type of treatment such as a spa cure into a care pathway contributes to a finer conceptualization of the construction of healthcare pathways.
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Affiliation(s)
- Milhan Chaze
- University of Clermont Auvergne, “Santé et Territoires” Resarch Chair, CleRMa, Clermont-Ferrand, France
| | - Laurent Mériade
- University of Clermont Auvergne, “Santé et Territoires” Resarch Chair, CleRMa, Clermont-Ferrand, France
| | - Corinne Rochette
- University of Clermont Auvergne, “Santé et Territoires” Resarch Chair, CleRMa, Clermont-Ferrand, France
| | - Mélina Bailly
- University of Clermont Auvergne, CRNH, AME2P, Clermont-Ferrand, France
| | - Rea Bingula
- CHU Clermont-Ferrand, Service d’Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
- University of Clermont Auvergne, INRA, UMR 1019, Clermont-Ferrand, France
| | - Christelle Blavignac
- Centre Imagerie Cellulaire Santé, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Martine Duclos
- University of Clermont Auvergne, INRA, UMR 1019, Clermont-Ferrand, France
- Service de Médecine du Sport et des Explorations Fonctionnelles, CHU de Clermont-Ferrand, Université Clermont Auvergne, INRA, UNH, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | - Bertrand Evrard
- CHU Clermont-Ferrand, Service d’Immunologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
- University of Clermont Auvergne, INRA, UMR 1019, Clermont-Ferrand, France
| | | | - Lena Pelissier
- University of Clermont Auvergne, CRNH, AME2P, Clermont-Ferrand, France
| | - David Thivel
- University of Clermont Auvergne, CRNH, AME2P, Clermont-Ferrand, France
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17
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Haug M, Oja M, Pajusalu M, Mooses K, Reisberg S, Vilo J, Giménez AF, Falconer T, Danilović A, Maljkovic F, Dawoud D, Kolde R. Markov modeling for cost-effectiveness using federated health data network. J Am Med Inform Assoc 2024; 31:1093-1101. [PMID: 38472144 PMCID: PMC11031209 DOI: 10.1093/jamia/ocae044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
OBJECTIVE To introduce 2 R-packages that facilitate conducting health economics research on OMOP-based data networks, aiming to standardize and improve the reproducibility, transparency, and transferability of health economic models. MATERIALS AND METHODS We developed the software tools and demonstrated their utility by replicating a UK-based heart failure data analysis across 5 different international databases from Estonia, Spain, Serbia, and the United States. RESULTS We examined treatment trajectories of 47 163 patients. The overall incremental cost-effectiveness ratio (ICER) for telemonitoring relative to standard of care was 57 472 €/QALY. Country-specific ICERs were 60 312 €/QALY in Estonia, 58 096 €/QALY in Spain, 40 372 €/QALY in Serbia, and 90 893 €/QALY in the US, which surpassed the established willingness-to-pay thresholds. DISCUSSION Currently, the cost-effectiveness analysis lacks standard tools, is performed in ad-hoc manner, and relies heavily on published information that might not be specific for local circumstances. Published results often exhibit a narrow focus, central to a single site, and provide only partial decision criteria, limiting their generalizability and comprehensive utility. CONCLUSION We created 2 R-packages to pioneer cost-effectiveness analysis in OMOP CDM data networks. The first manages state definitions and database interaction, while the second focuses on Markov model learning and profile synthesis. We demonstrated their utility in a multisite heart failure study, comparing telemonitoring and standard care, finding telemonitoring not cost-effective.
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Affiliation(s)
- Markus Haug
- Institute of Computer Science, University of Tartu, Tartu 51009, Estonia
| | - Marek Oja
- Institute of Computer Science, University of Tartu, Tartu 51009, Estonia
| | - Maarja Pajusalu
- Institute of Computer Science, University of Tartu, Tartu 51009, Estonia
| | - Kerli Mooses
- Institute of Computer Science, University of Tartu, Tartu 51009, Estonia
| | - Sulev Reisberg
- Institute of Computer Science, University of Tartu, Tartu 51009, Estonia
| | - Jaak Vilo
- Institute of Computer Science, University of Tartu, Tartu 51009, Estonia
| | | | - Thomas Falconer
- Columbia University Irving Medical Center, New York, NY 10032, United States
| | | | - Filip Maljkovic
- Department of Health Information Systems, Heliant, Belgrade 11000, Serbia
| | - Dalia Dawoud
- National Institute for Health and Care Excellence, London WC1V 6NA, United Kingdom
| | - Raivo Kolde
- Institute of Computer Science, University of Tartu, Tartu 51009, Estonia
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18
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Burevschi E, Chrayteh M, Murugachandran SI, Loru D, Dréan P, Sanz ME. Water Arrangements upon Interaction with a Rigid Solute: Multiconfigurational Fenchone-(H 2O) 4-7 Hydrates. J Am Chem Soc 2024; 146:10925-10933. [PMID: 38588470 PMCID: PMC11027134 DOI: 10.1021/jacs.4c01891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/10/2024]
Abstract
Insight into the arrangements of water molecules around solutes is important to understand how solvation proceeds and to build reliable models to describe water-solute interactions. We report the stepwise solvation of fenchone, a biogenic ketone, with 4-7 water molecules. Multiple hydrates were observed using broadband rotational spectroscopy, and the configurations of four fenchone-(H2O)4, three fenchone-(H2O)5, two fenchone-(H2O)6, and one fenchone-(H2O)7 complexes were characterized from the analysis of their rotational spectra in combination with quantum-chemical calculations. Interactions with fenchone deeply perturb water configurations compared with the pure water tetramer and pentamer. In two fenchone-(H2O)4 complexes, the water tetramer adopts completely new arrangements, and in fenchone-(H2O)5, the water pentamer is no longer close to being planar. The water hexamer interacts with fenchone as the least abundant book isomer, while the water heptamer adopts a distorted prism structure, which forms a water cube when including the fenchone oxygen in the hydrogen bonding network. Differences in hydrogen bonding networks compared with those of pure water clusters show the influence of fenchone's topology. Specifically, all observed hydrates except one show two water molecules binding to fenchone through each oxygen lone pair. The observation of several water arrangements for fenchone-(H2O)4-7 complexes highlights water adaptability and provides insight into the solvation process.
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Affiliation(s)
| | - Mhamad Chrayteh
- PhLAM—Physique
des Lasers, Atomes et Molécules, University of Lille, CNRS, UMR 8523, F-59000 Lille, France
| | | | - Donatella Loru
- Department
of Chemistry, King’s College London, London SE1 1DB, U.K.
| | - Pascal Dréan
- PhLAM—Physique
des Lasers, Atomes et Molécules, University of Lille, CNRS, UMR 8523, F-59000 Lille, France
| | - M. Eugenia Sanz
- Department
of Chemistry, King’s College London, London SE1 1DB, U.K.
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19
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Rose AM, McLauchlin AR, Wilson G, McDonald TO, Blanc F. Characterisation of formulated high-density poly(ethylene) by magic angle spinning nuclear magnetic resonance. Polym Chem 2024; 15:1511-1521. [PMID: 38633016 PMCID: PMC11019405 DOI: 10.1039/d4py00010b] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/05/2024] [Indexed: 04/19/2024]
Abstract
High-density poly(ethylene) (HDPE) is an important class of polymer used extensively in plastic packaging as well as numerous other applications. HDPE has a structure that consists of crystalline (monoclinic and orthorhombic) and amorphous domains. Here, we exploit a range of approaches focusing on magic angle spinning (MAS) nuclear magnetic resonance (NMR) aimed at comparing the effect of the HDPE sample formulation (cutting, shaving and cryomilling), from the commercially available manufactured pellets, into these domains and their quantification. 13C cross polarisation (CP) experiments reveal that these formulated HDPEs are qualitatively different and 13C CP build-up curves and 13C direct excitation experiments enable the content of each domain to be obtained, pointing to an increase of monoclinic domain at the expense of the orthorhombic one upon increased processing. The crystallinity contents obtained compared, in some cases, favourably with those obtained by differential scanning calorimetry (DSC) data. These results provide evidence that the manner of preparation of HDPE pellets modifies the concentration of the various domains and suggest that care should be taken during processing.
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Affiliation(s)
- Alyssa M Rose
- Department of Chemistry, Crown Street, University of Liverpool L69 7ZD UK
| | - Andrew R McLauchlin
- Department of Chemistry, Crown Street, University of Liverpool L69 7ZD UK
- Henry Royce Institute, Department of Materials and Department of Chemistry, University of Manchester M13 9PL UK
| | - George Wilson
- Department of Chemistry, Crown Street, University of Liverpool L69 7ZD UK
| | - Tom O McDonald
- Department of Chemistry, Crown Street, University of Liverpool L69 7ZD UK
- Henry Royce Institute, Department of Materials and Department of Chemistry, University of Manchester M13 9PL UK
| | - Frédéric Blanc
- Department of Chemistry, Crown Street, University of Liverpool L69 7ZD UK
- Leverhulme Research Centre for Functional Materials Design, Crown Street, University of Liverpool L7 3NY UK
- Stephenson Institute for Renewable Energy, Peach Street, University of Liverpool L69 7ZD UK
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20
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Danilian D, Bundrück FM, Kikas A, Käämbre T, Mändar H, Lehner S, Gogos A, Kozlova J, Kook M, Kiisk V, Link J, Stern R, Ivask A, Kisand V, Pärna R. Reusable magnetic mixture of CuFe 2O 4-Fe 2O 3 and TiO 2 for photocatalytic degradation of pesticides in water. RSC Adv 2024; 14:12337-12348. [PMID: 38633502 PMCID: PMC11019945 DOI: 10.1039/d4ra00094c] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
Photocatalysis is a promising treatment method to remove pollutants from water. TiO2-P25 is a commercially available model photocatalyst, which very efficiently degrades organic pollutants under UVA light exposure. However, the collection and the recovery of TiO2-P25 from cleaned water poses significant difficulties, severely limiting its usability. To address this challenge, we have prepared a sintered mixture of TiO2-P25 nanomaterials and magnetic CuFe2O4-Fe2O3 nanocomposites. The mixture material was shown to contain spinel ferrite, hematite and maghemite structures, copper predominantly in Cu2+ and iron predominantly in Fe3+ state. The CuFe2O4-Fe2O3 and TiO2-P25 mixture demonstrated magnetic collectability from processed water and photocatalytic activity, which was evidenced through the successful photodegradation of the herbicide 2,4-D. Our findings suggest that the sintered mixture of CuFe2O4-Fe2O3 and TiO2-P25 holds a promise for improving photocatalytic water treatment, with the potential to overcome current photocatalyst recovery issues.
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Affiliation(s)
- Dmytro Danilian
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | | | - Arvo Kikas
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | - Tanel Käämbre
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | - Hugo Mändar
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | - Sandro Lehner
- Laboratory of Advanced Fibers, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa) Lerchenfeldstrasse 5 St. Gallen 9014 Switzerland
| | - Alexander Gogos
- Laboratory for Particles-Biology Interactions, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa) Lerchenfeldstrasse 5 St. Gallen 9014 Switzerland
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich Sonneggstrasse 3 Zurich 8092 Switzerland
| | - Jekaterina Kozlova
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | - Mati Kook
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | - Valter Kiisk
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | - Joosep Link
- National Institute of Chemical Physics & Biophysics Akadeemia tee 23 12618 Tallinn Estonia
| | - Raivo Stern
- National Institute of Chemical Physics & Biophysics Akadeemia tee 23 12618 Tallinn Estonia
| | - Angela Ivask
- Institute of Molecular and Cell Biology, University of Tartu Riia 23 51010 Tartu Estonia
| | - Vambola Kisand
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
| | - Rainer Pärna
- Institute of Physics, University of Tartu W.Ostwaldi 1 Tartu 50411 Estonia
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21
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Richardson A, Alster J, Khoroshyy P, Psencik J, Valenta J, Tuma R, Critchley K. Direct Synthesis and Characterization of Hydrophilic Cu-Deficient Copper Indium Sulfide Quantum Dots. ACS Omega 2024; 9:17114-17124. [PMID: 38645370 PMCID: PMC11025077 DOI: 10.1021/acsomega.3c09531] [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: 11/29/2023] [Revised: 02/21/2024] [Accepted: 03/21/2024] [Indexed: 04/23/2024]
Abstract
Copper indium sulfide (CIS) nanocrystals constitute a promising alternative to cadmium- and lead-containing nanoparticles. We report a synthetic method that yields hydrophilic, core-only CIS quantum dots, exhibiting size-dependent, copper-deficient composition and optical properties that are suitable for direct coupling to biomolecules and nonradiative energy transfer applications. To assist such applications, we complemented previous studies covering the femtosecond-picosecond time scale with the investigation of slower radiative and nonradiative processes on the nanosecond time scale, using both time-resolved emission and transient absorption. As expected for core particles, relaxation occurs mainly nonradiatively, resulting in low, size-dependent photoluminescence quantum yield. The nonradiative relaxation from the first excited band is wavelength-dependent with lifetimes between 25 and 150 ns, reflecting the size distribution of the particles. Approximately constant lifetimes of around 65 ns were observed for nonradiative relaxation from the defect states at lower energies. The photoluminescence exhibited a large Stokes shift. The band gap emission decays on the order of 10 ns, while the defect emission is further red-shifted, and the lifetimes are on the order of 100 ns. Both sets of radiative lifetimes are wavelength-dependent, increasing toward longer wavelengths. Despite the low radiative quantum yield, the aqueous solubility and long lifetimes of the defect states are compatible with the proposed role of CIS quantum dots as excitation energy donors to biological molecules.
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Affiliation(s)
- Amanda Richardson
- Astbury
Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K.
- School
of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, U.K.
| | - Jan Alster
- Department
of Chemical Physics, Faculty of Mathematics and Physics, Charles University, Prague 121 16, Czech Republic
| | - Petro Khoroshyy
- Department
of Chemical Physics, Faculty of Mathematics and Physics, Charles University, Prague 121 16, Czech Republic
| | - Jakub Psencik
- Department
of Chemical Physics, Faculty of Mathematics and Physics, Charles University, Prague 121 16, Czech Republic
| | - Jan Valenta
- Department
of Chemical Physics, Faculty of Mathematics and Physics, Charles University, Prague 121 16, Czech Republic
| | - Roman Tuma
- Astbury
Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K.
- School
of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, U.K.
- Faculty
of Science, University of South Bohemia, Ceske Budejovice 370 05, Czech Republic
| | - Kevin Critchley
- Astbury
Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, U.K.
- School
of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Leeds, Leeds LS2 9JT, U.K.
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22
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Horváth L, Biri-Kovács B, Baranyai Z, Stipsicz B, Méhes E, Jezsó B, Krátký M, Vinšová J, Bősze S. New Salicylanilide Derivatives and Their Peptide Conjugates as Anticancer Compounds: Synthesis, Characterization, and In Vitro Effect on Glioblastoma. ACS Omega 2024; 9:16927-16948. [PMID: 38645331 PMCID: PMC11024950 DOI: 10.1021/acsomega.3c05727] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 04/23/2024]
Abstract
Pharmacologically active salicylanilides (2-hydroxy-N-phenylbenzamides) have been a promising area of interest in medicinal chemistry-related research for quite some time. This group of compounds has shown a wide spectrum of biological activities, including but not limited to anticancer effects. In this study, substituted salicylanilides were chosen to evaluate the in vitro activity on U87 human glioblastoma (GBM) cells. The parent salicylanilide, salicylanilide 5-chloropyrazinoates, a 4-aminosalicylic acid derivative, and the new salicylanilide 4-formylbenzoates were chemically and in vitro characterized. To enhance the internalization of the compounds, they were conjugated to delivery peptides with the formation of oxime bonds. Oligotuftsins ([TKPKG]n, n = 1-4), the ligands of neuropilin receptors, were used as GBM-targeting carrier peptides. The in vitro cellular uptake, intracellular localization, and penetration ability on tissue-mimicking models of the fluorescent peptide derivatives were determined. The compounds and their peptide conjugates significantly decreased the viability of U87 glioma cells. Salicylanilide compound-induced GBM cell death was associated with activation of autophagy, as characterized by immunodetection of autophagy-related processing of light chain 3 protein.
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Affiliation(s)
- Lilla Horváth
- ELKH-ELTE
Research Group of Peptide Chemistry, Eötvös Loránd
Research Network, Eötvös Loránd
University, Budapest 1117, Hungary
| | - Beáta Biri-Kovács
- ELKH-ELTE
Research Group of Peptide Chemistry, Eötvös Loránd
Research Network, Eötvös Loránd
University, Budapest 1117, Hungary
| | - Zsuzsa Baranyai
- ELKH-ELTE
Research Group of Peptide Chemistry, Eötvös Loránd
Research Network, Eötvös Loránd
University, Budapest 1117, Hungary
| | - Bence Stipsicz
- ELKH-ELTE
Research Group of Peptide Chemistry, Eötvös Loránd
Research Network, Eötvös Loránd
University, Budapest 1117, Hungary
- Institute
of Biology, Doctoral School of Biology, Eötvös Loránd University, Budapest 1117, Hungary
| | - Előd Méhes
- Institute
of Physics, Department of Biological Physics, Eötvös Loránd University, Budapest 1117, Hungary
| | - Bálint Jezsó
- Research
Centre for Natural Sciences, Institute of
Enzymology, Budapest 1053, Hungary
- ELTE-MTA
“Momentum” Motor Enzymology Research Group, Department
of Biochemistry, Eötvös Loránd
University, Budapest 1117, Hungary
| | - Martin Krátký
- Department
of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec
Králové, Charles University, 500 03 Hradec Králové, Czech Republic
| | - Jarmila Vinšová
- Department
of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec
Králové, Charles University, 500 03 Hradec Králové, Czech Republic
| | - Szilvia Bősze
- ELKH-ELTE
Research Group of Peptide Chemistry, Eötvös Loránd
Research Network, Eötvös Loránd
University, Budapest 1117, Hungary
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23
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Valente IM, Monteiro A, Sousa C, Miranda C, Maia MRG, Castro C, Cabrita ARJ, Trindade H, Fonseca AJM. Agronomic, Nutritional Traits, and Alkaloids of Lupinus albus, Lupinus angustifolius and Lupinus luteus Genotypes: Effect of Sowing Dates and Locations. ACS Agric Sci Technol 2024; 4:450-462. [PMID: 38638685 PMCID: PMC11022392 DOI: 10.1021/acsagscitech.3c00581] [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] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/11/2024] [Accepted: 03/19/2024] [Indexed: 04/20/2024]
Abstract
Lupins (Lupinus spp.) are legumes with high relevance for the sustainability of agricultural systems as they improve the soil quality, namely, through the fixation of atmospheric nitrogen, and have good adaptability to different climates and soil conditions. Besides, they possess high nutritive value, especially due to the high protein content of the seeds. Nevertheless, the plants' productivity and metabolism can be influenced by the genotype, the edaphoclimatic conditions, and the sowing practices. In this work, the effect of edaphoclimatic conditions and sowing dates on the productivity, nutritional factors, and alkaloids of the seeds of L. albus cv. Estoril, L. angustifolius cv. Tango, and L. luteus cv. Cardiga was evaluated. High variability in the seeds and protein productions, nutritional traits, and alkaloid content related to the species was observed, along with a significant effect of the location. Lupinus albus cv. Estoril showed a good compromise between productivity and low alkaloid content, being an interesting genotype for food and feed use in the conditions of this trial.
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Affiliation(s)
- Inês M. Valente
- REQUIMTE,
LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- REQUIMTE,
LAQV, Departament of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
| | - André Monteiro
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Carla Sousa
- REQUIMTE,
LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Carla Miranda
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Margarida R. G. Maia
- REQUIMTE,
LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Carlos Castro
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Ana R. J. Cabrita
- REQUIMTE,
LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Henrique Trindade
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - António J. M. Fonseca
- REQUIMTE,
LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
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24
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Silva RS, Rodrigues JE, Gainza J, Serrano-Sánchez F, Martínez L, Huttel Y, Martínez JL, Alonso JA. Magnetoelastic Coupling Evidence by Anisotropic Crossed Thermal Expansion in Magnetocaloric RSrCoFeO 6 (R = Sm, Eu) Double Perovskites. Inorg Chem 2024; 63:7007-7018. [PMID: 38557070 PMCID: PMC11022179 DOI: 10.1021/acs.inorgchem.4c00594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Double perovskite oxides, characterized by their tunable magnetic properties and robust interconnection between the lattice and magnetic degrees of freedom, present an enticing foundation for advanced magnetic refrigeration materials. Herein, we delve into the influence of rare-earth elements on RSrCoFeO6 (R = Sm, Eu) disordered double perovskites by examining their structural, electronic, magnetic, and magnetocaloric properties. Temperature-dependent synchrotron X-ray diffraction analysis confirmed the stability of the orthorhombic phase (Pnma) across a wide temperature range. X-ray photoemission spectroscopy revealed that both Sm and Eu are in the 3+ state, whereas multiple states for Co2+/3+ and Fe3+/4+ are identified. The magnetic investigation and magnetocaloric effect (MCE) analysis brought to light the presence of a long-range antiferromagnetic (AFM) order with a second-order phase transition (SOPT) in both samples. The maximum magnetic entropy change ΔSMmax was approximately 0.9 J/kg K for both samples at applied field 0-7 T, manifesting prominently above Neel temperatures TN ≈ 93 K (Sm) and 84 K (Eu). Nevertheless, different relative cooling powers (RCP) of 112.6 J/kg (Sm) and 95.5 J/kg (Eu) were observed. A detailed analysis of the temperature-dependent lattice parameters shed light on a distinct magnetocaloric effect across the magnetic transition temperature, unveiling an anisotropic thermal expansion [αV = 1.41 × 10-5 K-1 (Sm) and αV = 1.54 × 10-5 K-1 (Eu)] wherein the thermal expansion axial ratio αbSm/αbEu = 0.61 became lower with increasing temperature, which suggests that the Eu sample experiences a greater thermal expansion in the b-axis direction. At the atomic bonding level, the evidence for magnetoelastic coupling around the magnetic transition temperatures TN was found through the anomalies along the average Co/Fe-O bond distance, formal valence, octahedral distortion, as well as an anisotropic lattice expansion.
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Affiliation(s)
- Romualdo S. Silva
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, E-28049 Madrid, Spain
| | - João E. Rodrigues
- European
Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, 38000 Grenoble, France
- CELLS-ALBA
Synchrotron Light Source, Cerdanyola del Vallès, E-08290 Barcelona, Spain
| | - Javier Gainza
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, E-28049 Madrid, Spain
| | | | - Lidia Martínez
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, E-28049 Madrid, Spain
| | - Yves Huttel
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, E-28049 Madrid, Spain
| | - José Luis Martínez
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, E-28049 Madrid, Spain
| | - José Antonio Alonso
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, E-28049 Madrid, Spain
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25
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Holesova Z, Pös O, Gazdarica J, Kucharik M, Budis J, Hyblova M, Minarik G, Szemes T. Understanding genetic variability: exploring large-scale copy number variants through non-invasive prenatal testing in European populations. BMC Genomics 2024; 25:366. [PMID: 38622538 PMCID: PMC11017555 DOI: 10.1186/s12864-024-10267-5] [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: 12/28/2023] [Accepted: 03/28/2024] [Indexed: 04/17/2024] Open
Abstract
Large-scale copy number variants (CNVs) are structural alterations in the genome that involve the duplication or deletion of DNA segments, contributing to genetic diversity and playing a crucial role in the evolution and development of various diseases and disorders, as they can lead to the dosage imbalance of one or more genes. Massively parallel sequencing (MPS) has revolutionized the field of genetic analysis and contributed significantly to routine clinical diagnosis and screening. It offers a precise method for detecting CNVs with exceptional accuracy. In this context, a non-invasive prenatal test (NIPT) based on the sequencing of cell-free DNA (cfDNA) from pregnant women's plasma using a low-coverage whole genome MPS (WGS) approach represents a valuable source for population studies. Here, we analyzed genomic data of 12,732 pregnant women from the Slovak (9,230), Czech (1,583), and Hungarian (1,919) populations. We identified 5,062 CNVs ranging from 200 kbp and described their basic characteristics and differences between the subject populations. Our results suggest that re-analysis of sequencing data from routine WGS assays has the potential to obtain large-scale CNV population frequencies, which are not well known and may provide valuable information to support the classification and interpretation of this type of genetic variation. Furthermore, this could contribute to expanding knowledge about the central European genome without investing in additional laboratory work, as NIPTs are a relatively widely used screening method.
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Affiliation(s)
| | - Ondrej Pös
- Geneton Ltd, Bratislava, Slovakia
- Comenius University Science Park, Bratislava, Slovakia
| | - Juraj Gazdarica
- Geneton Ltd, Bratislava, Slovakia
- Slovak Centre of Scientific and Technical Information, Bratislava, Slovakia
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
| | - Marcel Kucharik
- Geneton Ltd, Bratislava, Slovakia
- Comenius University Science Park, Bratislava, Slovakia
| | - Jaroslav Budis
- Geneton Ltd, Bratislava, Slovakia
- Comenius University Science Park, Bratislava, Slovakia
- Slovak Centre of Scientific and Technical Information, Bratislava, Slovakia
| | - Michaela Hyblova
- TRISOMYtest Ltd, Nitra, Slovakia
- Medirex Group Academy, Nitra, Slovakia
| | - Gabriel Minarik
- TRISOMYtest Ltd, Nitra, Slovakia
- Medirex Group Academy, Nitra, Slovakia
| | - Tomas Szemes
- Geneton Ltd, Bratislava, Slovakia
- Comenius University Science Park, Bratislava, Slovakia
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
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26
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Vendrell X, de Castro P, Escrich L, Grau N, Gonzalez-Martin R, Quiñonero A, Escribá MJ, Domínguez F. Longitudinal profiling of human androgenotes through single-cell analysis unveils paternal gene expression dynamics in early embryo development. Hum Reprod 2024:deae072. [PMID: 38622061 DOI: 10.1093/humrep/deae072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/12/2024] [Indexed: 04/17/2024] Open
Abstract
STUDY QUESTION How do transcriptomics vary in haploid human androgenote embryos at single cell level in the first four cell cycles of embryo development? SUMMARY ANSWER Gene expression peaks at the fourth cell cycle, however some androcytes exhibit unique transcriptional behaviors. WHAT IS KNOWN ALREADY The developmental potential of an embryo is determined by the competence of the oocyte and the sperm. However, studies of the contribution of the paternal genome using pure haploid androgenotes are very scarce. STUDY DESIGN, SIZE, DURATION This study was performed analyzing the single-cell transcriptomic sequencing of 38 androcytes obtained from 10 androgenote bioconstructs previously produced in vitro (de Castro et al., 2023). These results were analyzed through different bioinformatics software such as g: Profiler, GSEA, Cytoscape, and Reactome. PARTICIPANTS/MATERIALS, SETTING, METHODS Single cell sequencing was used to obtain the transcriptomic profiles of the different androcytes. The results obtained were compared between the different cycles studied using the DESeq2 program and functional enrichment pathways using g: Profiler, Cytoscape, and Reactome. MAIN RESULTS AND THE ROLE OF CHANCE A wave of paternally driven transcriptomic activation was found during the third-cell cycle, with 1128 upregulated and 225 downregulated genes and the fourth-cell cycle, with 1373 upregulated and 286 downregulated genes, compared to first-cell cycle androcytes. Differentially expressed routes related to cell differentiation, DNA-binding transcription, RNA biosynthesis and RNA polymerase II transcription regulatory complex, and cell death were found in the third and fourth with respect to the first-cell cycle. Conversely, in the fourth cell cycle, 153 downregulated and 332 upregulated genes were found compared with third cell cycle, associated with differentially expressed processes related to E-box binding and zinc finger protein 652 (ZNF652) transcription factor. Further, significant overexpression of LEUTX, PRAMEF1, DUXA, RFPL4A, TRIM43, and ZNF675 found in androgenotes, compared to biparental embryos, highlights the paternal contributions to zygote genome activation. LARGE SCALE DATA All raw sequencing data are available through the Gene Expression Omnibus (GEO) under accessions number: GSE216501. LIMITATIONS, REASONS FOR CAUTION Extrapolation of biological events from uniparental constructs to biparental embryos should be done with caution. Maternal and paternal genomes do not act independently of each other in a natural condition. The absence of one genome may affect gene transcription of the other. In this sense, the haploid condition of the bioconstructs could mask the transcriptomic patterns of the single cells. WIDER IMPLICATIONS OF THE FINDINGS The results obtained demonstrated the level of involvement of the human paternal haploid genome in the early stages of embryo development as well as its evolution at the transcriptomic level, laying the groundwork for the use of these bioconstructs as reliable models to dispel doubts about the genetic role played by the paternal genome in the early cycles of embryo development. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by Instituto de Salud Carlos III (ISCIII) through the project 'PI22/00924', co-funded by European Regional Development Fund (ERDF); 'A way to make Europe'. F.D. was supported by the Spanish Ministry of Economy and Competitiveness through the Miguel Servet program (CPII018/00002). M.J.E. was supported by Instituto de Salud Carlos III (PI19/00577 [M.J.E.]) and FI20/00086. P.dC. was supported by a predoctoral grant for training in research into health (PFIS PI19/00577) from the Instituto de Salud Carlos III. All authors declare having no conflict of interest with regard to this trial.
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Affiliation(s)
- X Vendrell
- Reproductive Genetics Department, Sistemas Genómicos-Synlab, Valencia, Spain
| | - P de Castro
- Research Department, IVIRMA Global Research Alliance, IVI Foundation-Reproductive Biology and Bioengineering in Human Reproduction, IIS La Fe Health Research, Valencia, Spain
| | - L Escrich
- Embryology Department, IVIRMA Valencia, Valencia, Spain
| | - N Grau
- Embryology Department, IVIRMA Valencia, Valencia, Spain
| | - R Gonzalez-Martin
- Research Department, IVIRMA Global Research Alliance, IVI Foundation-Reproductive Biology and Bioengineering in Human Reproduction, IIS La Fe Health Research, Valencia, Spain
| | - A Quiñonero
- Research Department, IVIRMA Global Research Alliance, IVI Foundation-Reproductive Biology and Bioengineering in Human Reproduction, IIS La Fe Health Research, Valencia, Spain
| | - M J Escribá
- Research Department, IVIRMA Global Research Alliance, IVI Foundation-Reproductive Biology and Bioengineering in Human Reproduction, IIS La Fe Health Research, Valencia, Spain
- Embryology Department, IVIRMA Valencia, Valencia, Spain
| | - F Domínguez
- Research Department, IVIRMA Global Research Alliance, IVI Foundation-Reproductive Biology and Bioengineering in Human Reproduction, IIS La Fe Health Research, Valencia, Spain
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Sortland LK, Aarestrup K, Birnie-Gauvin K. Comparing the migration behavior and survival of Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) smolts. J Fish Biol 2024. [PMID: 38622843 DOI: 10.1111/jfb.15749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/17/2024]
Abstract
Many organisms rely on migrations between habitats to maximize lifetime fitness, but these migrations can be risky due to a suite of factors. In anadromous salmonids, the smolt migration from fresh water to sea is a critical life stage, during which smolts can experience high mortality from multiple sources. This study investigated the migratory behavior and survival of Atlantic salmon (Salmo salar) and anadromous brown trout (Salmo trutta) smolts during their seaward migration using acoustic telemetry between March and May 2021. Due to the extinction of wild salmon in the River Gudenaa after the construction of the Tange hydropower plant, this study used hatchery-reared salmon originating from a nearby Danish river. A total of 75 hatchery-reared salmon smolts, 75 hatchery-reared trout smolts, and 75 wild trout smolts were tagged with acoustic transmitters and released into River Gudenaa, Denmark. The downstream movements of tagged fish were monitored using acoustic receivers deployed in the river and fjord. Hatchery-reared trout initiated migration first, followed by hatchery-reared salmon, with wild trout being the last to migrate. There was no difference in riverine progression rates among the three smolt groups, but noticeable differences emerged once in the fjord: trout (wild and hatchery) slowed down, whereas hatchery-reared salmon maintained their speed. Riverine migration was predominantly nocturnal for all smolts; however, daytime migration increased at the fjord arrays. Day-of-year significantly influenced diurnal patterns in the river and fjord, where daytime migration increased later in the year. Hatchery-reared salmon and wild trout had reasonably good overall survival from river to sea entry (≥66%), whereas hatchery-reared trout had poor survival (c.26%). The fjord was the major bottleneck for survival of hatchery-reared trout. We found no strong evidence for differences in progression rate or diurnal patterns between wild and hatchery-reared trout to explain the lower survival. This study demonstrates that salmon and trout differ in their life-history strategy already in the post-smolt phase, and that stocking is a sub-optimal strategy to aid wild populations.
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Affiliation(s)
- Lene Klubben Sortland
- Section for Freshwater Fisheries and Ecology, Technical University of Denmark, Silkeborg, Denmark
| | - Kim Aarestrup
- Section for Freshwater Fisheries and Ecology, Technical University of Denmark, Silkeborg, Denmark
| | - Kim Birnie-Gauvin
- Section for Freshwater Fisheries and Ecology, Technical University of Denmark, Silkeborg, Denmark
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Guardiola M, Rehues P, Amigó N, Arrieta F, Botana M, Gimeno-Orna JA, Girona J, Martínez-Montoro JI, Ortega E, Pérez-Pérez A, Sánchez-Margalet V, Pedro-Botet J, Ribalta J. Increasing the complexity of lipoprotein characterization for cardiovascular risk in type 2 diabetes. Eur J Clin Invest 2024:e14214. [PMID: 38613414 DOI: 10.1111/eci.14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/15/2024]
Abstract
The burden of cardiovascular disease is particularly high among individuals with diabetes, even when LDL cholesterol is normal or within the therapeutic target. Despite this, cholesterol accumulates in their arteries, in part, due to persistent atherogenic dyslipidaemia characterized by elevated triglycerides, remnant cholesterol, smaller LDL particles and reduced HDL cholesterol. The causal link between dyslipidaemia and atherosclerosis in T2DM is complex, and our contention is that a deeper understanding of lipoprotein composition and functionality, the vehicle that delivers cholesterol to the artery, will provide insight for improving our understanding of the hidden cardiovascular risk of diabetes. This narrative review covers three levels of complexity in lipoprotein characterization: 1-the information provided by routine clinical biochemistry, 2-advanced nuclear magnetic resonance (NMR)-based lipoprotein profiling and 3-the identification of minor components or physical properties of lipoproteins that can help explain arterial accumulation in individuals with normal LDLc levels, which is typically the case in individuals with T2DM. This document highlights the importance of incorporating these three layers of lipoprotein-related information into population-based studies on ASCVD in T2DM. Such an attempt should inevitably run in parallel with biotechnological solutions that allow large-scale determination of these sets of methodologically diverse parameters.
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Affiliation(s)
- Montse Guardiola
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Pere Rehues
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Núria Amigó
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Departament de Ciències Mèdiques Bàsiques, Universitat Rovira i Virgili, Reus, Spain
- Biosfer Teslab, Reus, Spain
| | | | - Manuel Botana
- Departamento de Endocrinología y Nutrición, Hospital Universitario Lucus Augusti, Lugo, Spain
| | - José A Gimeno-Orna
- Endocrinology and Nutrition Department, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - Josefa Girona
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - José Ignacio Martínez-Montoro
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
| | - Emilio Ortega
- Department of Endocrinology and Nutrition, Hospital Clínic, Barcelona, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - Antonio Pérez-Pérez
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Servicio de Endocrinología y Nutrición, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Virgen Macarena University Hospital, University of Seville, Seville, Spain
| | - Juan Pedro-Botet
- Unidad de Lípidos y Riesgo Vascular, Department of Endocrinology and Nutrition, Hospital del Mar, Barcelona, Spain
- Department of Medicine, Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Josep Ribalta
- Departament de Medicina i Cirurgia, Unitat de Recerca en Lípids i Arteriosclerosi (URLA), Universitat Rovira i Virgili, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Bolmanis E, Grigs O, Didrihsone E, Senkovs M, Nikolajeva V. Pilot-scale production of Bacillus subtilis MSCL 897 spore biomass and antifungal secondary metabolites in a low-cost medium. Biotechnol Lett 2024:10.1007/s10529-024-03481-4. [PMID: 38607603 DOI: 10.1007/s10529-024-03481-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/05/2024] [Accepted: 03/10/2024] [Indexed: 04/13/2024]
Abstract
OBJECTIVES Bacillus subtilis is a plant growth promoting bacterium (PGPB) that acts as a microbial fertilizer and biocontrol agent, providing benefits such as boosting crop productivity and improving nutrient content. It is able to produce secondary metabolites and endospores simultaneously, enhancing its ability to survive in unfavorable conditions and eliminate competing microorganisms. Optimizing cultivation methods to produce B. subtilis MSCL 897 spores on an industrial scale, requires a suitable medium, typically made from food industry by-products, and optimal temperature and pH levels to achieve high vegetative cell and spore densities with maximum productivity. RESULTS This research demonstrates successful pilot-scale (100 L bioreactor) production of a biocontrol agent B. subtilis with good spore yields (1.5 × 109 spores mL-1) and a high degree of sporulation (>80%) using a low-cost cultivation medium. Culture samples showed excellent antifungal activity (1.6-2.3 cm) against several phytopathogenic fungi. An improved methodology for inoculum preparation was investigated to ensure an optimal seed culture state prior to inoculation, promoting process batch-to-batch repeatability. Increasing the molasses concentration in the medium and operating the process in fed-batch mode with additional molasses feed, did not improve the overall spore yield, hence, process operation in batch mode with 10 g molasses L-1 is preferred. Results also showed that the product quality was not significantly impacted for up to 12 months of storage at room temperature. CONCLUSION An economically-feasible process for B. subtilis-based biocontrol agent production was successfully developed at the pilot scale.
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Affiliation(s)
- Emils Bolmanis
- Laboratory of Bioengineering, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, Riga, 1006, Latvia
- Latvian Biomedical Research and Study Centre, Ratsupites Street 1-k1, Riga, 1067, Latvia
| | - Oskars Grigs
- Laboratory of Bioengineering, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, Riga, 1006, Latvia.
| | - Elina Didrihsone
- Laboratory of Bioengineering, Latvian State Institute of Wood Chemistry, Dzerbenes Street 27, Riga, 1006, Latvia
| | - Maris Senkovs
- Bioefekts Ltd., Livzemes Street 30, Salaspils, 2169, Latvia
- Faculty of Biology, University of Latvia, Jelgavas Street 1, Riga, 1004, Latvia
| | - Vizma Nikolajeva
- Bioefekts Ltd., Livzemes Street 30, Salaspils, 2169, Latvia
- Faculty of Biology, University of Latvia, Jelgavas Street 1, Riga, 1004, Latvia
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30
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Valverde-Gonzalez A, Yuriychuk N, Borrallo-Aniceto MC, Gándara F, Iglesias M, López-González M, Maya EM. Naphthalene Tetrazole-Based Nickel Metal-Organic Framework as a Filler of Polycarbonate Membranes to Improve CO 2 and H 2 Separation. ACS Appl Polym Mater 2024; 6:4244-4255. [PMID: 38633815 PMCID: PMC11019729 DOI: 10.1021/acsapm.4c00277] [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] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/26/2024] [Accepted: 03/21/2024] [Indexed: 04/19/2024]
Abstract
A tetrazole-naphthalene linker was used to prepare a nickel MOF (metal-organic framework) (NiNDTz) with interesting properties: a specific surface area SBET of 320 m2g-1 (SLangmuir 436 m2g-1), high thermal stability (Tdonset = 300 °C), and CO2 uptake of 1.85 mmolg-1, attributed to the tetrazole groups to be used as fillers in gas separation membranes. The role of these groups was crucial in the mechanical properties of mixed membranes prepared using polycarbonate as a polymer matrix, providing a very homogeneous filler distribution and also in the gas separation properties since a simultaneous increase in permeability and selectivity was achieved, especially in the hybrid membrane containing 20% filler (PC@NiNDTz-20%). This membrane exhibited an excellent balance between permeability (P) and selectivity (α) with an increase in the permeability of CO2 and H2, 177 and 185%, respectively, and improvements in the selectivity of these gases against greenhouse gases such as methane and ethylene (between 15 and 28% improvement). These results make this membrane competitive to deal with separations in which these gases are involved, and are of special interest for the H2/CH4 separation since it clearly improves the performance of pure PC and no better PC-based membranes have been reported in the literature for this separation.
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Affiliation(s)
- Antonio Valverde-Gonzalez
- Departamento
de Fronteras en Química de Materiales, Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Sor Juana Inés de la Cruz,
3, Cantoblanco, Madrid 28049, Spain
| | - Nastasiya Yuriychuk
- Departamento
de Química-Física de Polímeros, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC),
Consejo Superior de Investigaciones Científicas, C/Juan de la Cierva 3, Madrid 28006, Spain
| | - M. Carmen Borrallo-Aniceto
- Departamento
de Fronteras en Química de Materiales, Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Sor Juana Inés de la Cruz,
3, Cantoblanco, Madrid 28049, Spain
| | - Felipe Gándara
- Departamento
de Fronteras en Química de Materiales, Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Sor Juana Inés de la Cruz,
3, Cantoblanco, Madrid 28049, Spain
| | - Marta Iglesias
- Departamento
de Fronteras en Química de Materiales, Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Sor Juana Inés de la Cruz,
3, Cantoblanco, Madrid 28049, Spain
- Departamento
de Química-Física de Polímeros, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC),
Consejo Superior de Investigaciones Científicas, C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Mar López-González
- Departamento
de Química-Física de Polímeros, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC),
Consejo Superior de Investigaciones Científicas, C/Juan de la Cierva 3, Madrid 28006, Spain
| | - Eva M. Maya
- Departamento
de Fronteras en Química de Materiales, Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Sor Juana Inés de la Cruz,
3, Cantoblanco, Madrid 28049, Spain
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31
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Gomez-Cruz C, Fernandez-de la Torre M, Lachowski D, Prados-de-Haro M, Del Río Hernández AE, Perea G, Muñoz-Barrutia A, Garcia-Gonzalez D. Mechanical and Functional Responses in Astrocytes under Alternating Deformation Modes Using Magneto-Active Substrates. Adv Mater 2024:e2312497. [PMID: 38610101 DOI: 10.1002/adma.202312497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/21/2024] [Indexed: 04/14/2024]
Abstract
This work introduces NeoMag, a system designed to enhance cell mechanics assays in substrate deformation studies. NeoMag uses multidomain magneto-active materials to mechanically actuate the substrate, transmitting reversible mechanical cues to cells. The system boasts full flexibility in alternating loading substrate deformation modes, seamlessly adapting to both upright and inverted microscopes. The multidomain substrates facilitate mechanobiology assays on 2D and 3D cultures. The integration of the system with nanoindenters allows for precise evaluation of cellular mechanical properties under varying substrate deformation modes. The system is used to study the impact of substrate deformation on astrocytes, simulating mechanical conditions akin to traumatic brain injury and ischemic stroke. The results reveal local heterogeneous changes in astrocyte stiffness, influenced by the orientation of subcellular regions relative to substrate strain. These stiffness variations, exceeding 50% in stiffening and softening, and local deformations significantly alter calcium dynamics. Furthermore, sustained deformations induce actin network reorganization and activate Piezo1 channels, leading to an initial increase followed by a long-term inhibition of calcium events. Conversely, fast and dynamic deformations transiently activate Piezo1 channels and disrupt the actin network, causing long-term cell softening. These findings unveil mechanical and functional alterations in astrocytes during substrate deformation, illustrating the multiple opportunities this technology offers.
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Affiliation(s)
- Clara Gomez-Cruz
- Department of Continuum Mechanics and Structural Analysis, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911, Leganés, Madrid, Spain
- Departamento de Bioingeniería, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911, Leganés, Madrid, Spain
| | - Miguel Fernandez-de la Torre
- Department of Continuum Mechanics and Structural Analysis, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911, Leganés, Madrid, Spain
| | - Dariusz Lachowski
- Department of Continuum Mechanics and Structural Analysis, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911, Leganés, Madrid, Spain
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Martin Prados-de-Haro
- Department of Continuum Mechanics and Structural Analysis, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911, Leganés, Madrid, Spain
| | - Armando E Del Río Hernández
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Gertrudis Perea
- Department of Functional and Systems Neurobiology, Instituto Cajal, CSIC, Av. Doctor Arce, 37., 28002, Leganés, Madrid, Spain
| | - Arrate Muñoz-Barrutia
- Departamento de Bioingeniería, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911, Leganés, Madrid, Spain
- Área de Ingeniería Biomédica, Instituto de Investigación Sanitaria Gregorio Marañón, Calle del Doctor Esquerdo 46, Leganés, Madrid, ES28007, Spain
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, 3400 N Charles St, Baltimore, Maryland, 21218, USA
| | - Daniel Garcia-Gonzalez
- Department of Continuum Mechanics and Structural Analysis, Universidad Carlos III de Madrid, Avda. de la Universidad 30, 28911, Leganés, Madrid, Spain
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Huszár Z, Engh MA, Pavlekovics M, Sato T, Steenkamp Y, Hanseeuw B, Terebessy T, Molnár Z, Hegyi P, Csukly G. Risk of conversion to mild cognitive impairment or dementia among subjects with amyloid and tau pathology: a systematic review and meta-analysis. Alzheimers Res Ther 2024; 16:81. [PMID: 38610055 PMCID: PMC11015617 DOI: 10.1186/s13195-024-01455-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 04/08/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND Measurement of beta-amyloid (Aβ) and phosphorylated tau (p-tau) levels offers the potential for early detection of neurocognitive impairment. Still, the probability of developing a clinical syndrome in the presence of these protein changes (A+ and T+) remains unclear. By performing a systematic review and meta-analysis, we investigated the risk of mild cognitive impairment (MCI) or dementia in the non-demented population with A+ and A- alone and in combination with T+ and T- as confirmed by PET or cerebrospinal fluid examination. METHODS A systematic search of prospective and retrospective studies investigating the association of Aβ and p-tau with cognitive decline was performed in three databases (MEDLINE via PubMed, EMBASE, and CENTRAL) on January 9, 2024. The risk of bias was assessed using the Cochrane QUIPS tool. Odds ratios (OR) and Hazard Ratios (HR) were pooled using a random-effects model. The effect of neurodegeneration was not studied due to its non-specific nature. RESULTS A total of 18,162 records were found, and at the end of the selection process, data from 36 cohorts were pooled (n= 7,793). Compared to the unexposed group, the odds ratio (OR) for conversion to dementia in A+ MCI patients was 5.18 [95% CI 3.93; 6.81]. In A+ CU subjects, the OR for conversion to MCI or dementia was 5.79 [95% CI 2.88; 11.64]. Cerebrospinal fluid Aβ42 or Aβ42/40 analysis and amyloid PET imaging showed consistent results. The OR for conversion in A+T+ MCI subjects (11.60 [95% CI 7.96; 16.91]) was significantly higher than in A+T- subjects (2.73 [95% CI 1.65; 4.52]). The OR for A-T+ MCI subjects was non-significant (1.47 [95% CI 0.55; 3.92]). CU subjects with A+T+ status had a significantly higher OR for conversion (13.46 [95% CI 3.69; 49.11]) than A+T- subjects (2.04 [95% CI 0.70; 5.97]). Meta-regression showed that the ORs for Aβ exposure decreased with age in MCI. (beta = -0.04 [95% CI -0.03 to -0.083]). CONCLUSIONS Identifying Aβ-positive individuals, irrespective of the measurement technique employed (CSF or PET), enables the detection of the most at-risk population before disease onset, or at least at a mild stage. The inclusion of tau status in addition to Aβ, especially in A+T+ cases, further refines the risk assessment. Notably, the higher odds ratio associated with Aβ decreases with age. TRIAL REGISTRATION The study was registered in PROSPERO (ID: CRD42021288100).
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Affiliation(s)
- Zsolt Huszár
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
- Department of Psychiatry and Psychotherapy, Semmelweis University, Balassa utca 6, Budapest, 1083, Hungary
| | - Marie Anne Engh
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - Márk Pavlekovics
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
- Department of Neurology, Jahn Ferenc Teaching Hospital, Köves utca 1, Budapest, 1204, Hungary
| | - Tomoya Sato
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - Yalea Steenkamp
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - Bernard Hanseeuw
- Department of Neurology and Institute of Neuroscience, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, 1200, Belgium
- Department of Radiology, Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02155, USA
| | - Tamás Terebessy
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - Zsolt Molnár
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, Üllői út 78/A, Budapest, Hungary
- Department of Anesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 49 Przybyszewskiego St, Poznan, Poland
| | - Péter Hegyi
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, Pécs, 7624, Hungary
- Institute of Pancreatic Diseases, Semmelweis University, Tömő 25-29, Budapest, 1083, Hungary
- Translational Pancreatology Research Group, Interdisciplinary Centre of Excellence for Research Development and Innovation University of Szeged, Budapesti 9, Szeged, 6728, Hungary
| | - Gábor Csukly
- Centre for Translational Medicine, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary.
- Department of Psychiatry and Psychotherapy, Semmelweis University, Balassa utca 6, Budapest, 1083, Hungary.
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Bartolf-Kopp M, Jungst T. The Past, Present, and Future of Tubular Melt Electrowritten Constructs to Mimic Small Diameter Blood Vessels - A Stable Process? Adv Healthc Mater 2024:e2400426. [PMID: 38607966 DOI: 10.1002/adhm.202400426] [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: 02/03/2024] [Revised: 03/20/2024] [Indexed: 04/14/2024]
Abstract
Melt Electrowriting (MEW) is a continuously growing manufacturing platform. Its advantage is the consistent production of micro- to nanometer fibers, that stack intricately, forming complex geometrical shapes. MEW allows tuning of the mechanical properties of constructs via the geometry of deposited fibers. Due to this, MEW can create complex mechanics only seen in multi-material compounds and serve as guiding structures for cellular alignment. The advantage of MEW is also shown in combination with other biotechnological manufacturing methods to create multilayered constructs that increase mechanical approximation to native tissues, biocompatibility, and cellular response. These features make MEW constructs a perfect candidate for small-diameter vascular graft structures. Recently, studies have presented fascinating results in this regard, but is this truly the direction that tubular MEW will follow or are there also other options on the horizon? This perspective will explore the origins and developments of tubular MEW and present its growing importance in the field of artificial small-diameter vascular grafts with mechanical modulation and improved biomimicry and the impact of it in convergence with other manufacturing methods and how future technologies like AI may influence its progress.
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Affiliation(s)
- Michael Bartolf-Kopp
- Department for Functional Materials in Medicine and Dentistry, Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg, Germany
| | - Tomasz Jungst
- Department for Functional Materials in Medicine and Dentistry, Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg, Germany
- Department of Orthopedics, Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands
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34
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Pujol M, Méndez M, Fernández E. Stereoselective Control of the Cu Activation of β,β-Diboryl Acrylates for Allylic Coupling Protocols with Concomitant Lactonization. Org Lett 2024; 26:2821-2826. [PMID: 38101420 PMCID: PMC11020160 DOI: 10.1021/acs.orglett.3c03640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/30/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023]
Abstract
The key to a successful C-B activation is to discriminate between two geminal boryl moieties that are exposed to the same reaction conditions. Here we describe a stereoselective C-B activation of β,β-diboryl acrylates forming exclusively the (Z)-α-borylalkenyl copper(I) key intermediate, for subsequent allylic alkylation reactions. The new borylated (Z)-skipped dienoates followed a feasible iodo-lactonization sequence for the preparation of borylated lactone cores, which can be used in drug discovery.
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Affiliation(s)
- Mireia Pujol
- Faculty
of Chemistry, University Rovira i Virgili, 43007 Tarragona, Spain
| | - María Méndez
- Sanofi
R&D, Integrated Drug Discovery, Industriepark Höchst, Building G838, 65926 Frankfurt am Main, Germany
| | - Elena Fernández
- Faculty
of Chemistry, University Rovira i Virgili, 43007 Tarragona, Spain
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35
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de Moura TR, Purta E, Bernat A, Martín-Cuevas E, Kurkowska M, Baulin E, Mukherjee S, Nowak J, Biela A, Rawski M, Glatt S, Moreno-Herrero F, Bujnicki J. Conserved structures and dynamics in 5'-proximal regions of Betacoronavirus RNA genomes. Nucleic Acids Res 2024; 52:3419-3432. [PMID: 38426934 PMCID: PMC11014237 DOI: 10.1093/nar/gkae144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/25/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024] Open
Abstract
Betacoronaviruses are a genus within the Coronaviridae family of RNA viruses. They are capable of infecting vertebrates and causing epidemics as well as global pandemics in humans. Mitigating the threat posed by Betacoronaviruses requires an understanding of their molecular diversity. The development of novel antivirals hinges on understanding the key regulatory elements within the viral RNA genomes, in particular the 5'-proximal region, which is pivotal for viral protein synthesis. Using a combination of cryo-electron microscopy, atomic force microscopy, chemical probing, and computational modeling, we determined the structures of 5'-proximal regions in RNA genomes of Betacoronaviruses from four subgenera: OC43-CoV, SARS-CoV-2, MERS-CoV, and Rousettus bat-CoV. We obtained cryo-electron microscopy maps and determined atomic-resolution models for the stem-loop-5 (SL5) region at the translation start site and found that despite low sequence similarity and variable length of the helical elements it exhibits a remarkable structural conservation. Atomic force microscopy imaging revealed a common domain organization and a dynamic arrangement of structural elements connected with flexible linkers across all four Betacoronavirus subgenera. Together, these results reveal common features of a critical regulatory region shared between different Betacoronavirus RNA genomes, which may allow targeting of these RNAs by broad-spectrum antiviral therapeutics.
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Affiliation(s)
- Tales Rocha de Moura
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Elżbieta Purta
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Agata Bernat
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Eva M Martín-Cuevas
- Department of Macromolecular Structures, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Małgorzata Kurkowska
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Eugene F Baulin
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Sunandan Mukherjee
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Jakub Nowak
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Artur P Biela
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Michał Rawski
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
- National Synchrotron Radiation Centre SOLARIS, Jagiellonian University, Krakow, Poland
| | - Sebastian Glatt
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Fernando Moreno-Herrero
- Department of Macromolecular Structures, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Janusz M Bujnicki
- Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, ul. Ks. Trojdena 4, 02-109 Warsaw, Poland
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36
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Mendez-Pfeiffer P, Ballesteros-Monrreal MG, Juarez J, Gastelum-Cabrera M, Martinez-Flores P, Taboada P, Valencia D. Chitosan-Coated Silver Nanoparticles Inhibit Adherence and Biofilm Formation of Uropathogenic Escherichia coli. ACS Infect Dis 2024; 10:1126-1136. [PMID: 38287229 PMCID: PMC11019552 DOI: 10.1021/acsinfecdis.3c00229] [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: 05/19/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/31/2024]
Abstract
Urinary tract infections are commonly caused by uropathogenic Escherichia coli (UPEC), which usually presents multiple virulence and resistance mechanisms, making it difficult to treat. It has been demonstrated that silver and polymeric nanoparticles had potential against these pathogens. In this study, we synthesized thiol chitosan-coated silver nanoparticles (SH-Cs-AgNPs) and evaluated their antibacterial, antibiofilm and antiadherence activity against clinical isolates of UPEC. The SH-Cs-AgNPs showed a spherical shape with a size of 17.80 ± 2.67 nm and zeta potential of 18 ± 2 mV. We observed a potent antibacterial and antibiofilm activity as low as 12.5 μg/mL, as well as a reduction in the adherence of UPEC to mammalian cells at concentrations of 1.06 and 0.53 μg/mL. These findings demonstrate that SH-Cs-AgNPs have potential as a new therapeutic compound against infections caused by UPEC.
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Affiliation(s)
- Pablo Mendez-Pfeiffer
- Departamento
de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Campus Caborca, Caborca, Sonora CP 83600, Mexico
| | - Manuel G. Ballesteros-Monrreal
- Departamento
de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Campus Caborca, Caborca, Sonora CP 83600, Mexico
| | - Josue Juarez
- Departamento
de Física, Universidad de Sonora, Campus Hermosillo, Hermosillo, Sonora CP 83000, Mexico
| | - Marisol Gastelum-Cabrera
- Departamento
de Física, Universidad de Sonora, Campus Hermosillo, Hermosillo, Sonora CP 83000, Mexico
| | - Patricia Martinez-Flores
- Departamento
de Física, Universidad de Sonora, Campus Hermosillo, Hermosillo, Sonora CP 83000, Mexico
| | - Pablo Taboada
- Departamento
de Física de la Materia Condensada, Facultad de Física, Universidad de Santiago, de Compostela CP 15782, Espana
| | - Dora Valencia
- Departamento
de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Campus Caborca, Caborca, Sonora CP 83600, Mexico
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37
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Caminos L, Chaves G, Garcia-Manrique J, Gonzalez-Herrera A. Semi-automatic algorithm to build finite element numerical models of the human hearing system from Micro-CT data. Int J Numer Method Biomed Eng 2024:e3817. [PMID: 38602150 DOI: 10.1002/cnm.3817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/20/2024] [Accepted: 03/17/2024] [Indexed: 04/12/2024]
Abstract
Finite Element modeling has been an extended methodology to build numerical model to simulate the behavior of the hearing system. Due to the complexity of the system and the difficulties to reduce the uncertainties of the geometric data, they result in computationally expensive models, sometimes generic, representative of average geometries. It makes it difficult to validate the model with direct experimental data from the same specimen or to establish a patient-oriented modeling strategy. In the present paper, a first attempt to automatize the process of model building is made. The source information is geometrical information obtained from CT of the different elements that compose the system. Importing that data, we have designed the complete procedure to build a model including tympanic membrane, ossicular chain and cavities. The methodology includes the proper coupling of all the elements and the generation of the corresponding finite element model. The whole automatic procedure is not complete, as we need to make some human-assisted decisions; however, the model development time is reduced from 4 weeks to approximately 3 days. The goal of the modeling algorithm is to build a Finite Element Model with a limited computational cost. Several tasks as contour identification or model decimation are designed and integrated in order to follow a semi-automated process that allows generating a patient-oriented model.
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Affiliation(s)
- L Caminos
- Departament of Civil, Materials and Manufacturing Engineering University of Malaga, Málaga, Spain
| | - G Chaves
- Departament of Civil, Materials and Manufacturing Engineering University of Malaga, Málaga, Spain
| | - J Garcia-Manrique
- Departament of Civil, Materials and Manufacturing Engineering University of Malaga, Málaga, Spain
| | - A Gonzalez-Herrera
- Departament of Civil, Materials and Manufacturing Engineering University of Malaga, Málaga, Spain
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38
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Rajchel-Mieldzioć P, Fita P. Deciphering Photoluminescence in an Aryl Iodides-Gold Nanoparticles System: Au-Mediated Homocoupling Reaction at a Low Temperature. J Phys Chem Lett 2024; 15:3982-3986. [PMID: 38573119 PMCID: PMC11017310 DOI: 10.1021/acs.jpclett.4c00346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/01/2024] [Accepted: 03/11/2024] [Indexed: 04/05/2024]
Abstract
The study of photoactive materials often unveils intriguing findings, showcasing the value of an interdisciplinary approach. We examined the purported metal-enhanced luminescence thought to result from the chemisorption of aryl iodides on poly(N-vinylpyrrolidone)-stabilized gold nanoparticles. Our discovery deviates from previous assumptions: the fluorescence observed does not originate from excimers of iodophenols chemisorbed on Au:PVP. Instead, it arises from biphenol products, resulting from a gold-mediated Ullmann homocoupling reaction that occurs within the system. Notably, this reaction, known for its demanding nature, proceeds in methanol under purely ambient conditions: room temperature and air atmosphere, without the need for a base. Therefore, these findings not only offer a complete understanding of the observed luminescence but also provide a substantial contribution to the field of carbon-carbon coupling reactions.
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Affiliation(s)
- Paulina Rajchel-Mieldzioć
- Institute of Experimental Physics,
Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Piotr Fita
- Institute of Experimental Physics,
Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
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39
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Montaño-Priede J, Sánchez-Iglesias A, Mezzasalma SA, Sancho-Parramon J, Grzelczak M. Quantifying Shape Transition in Anisotropic Plasmonic Nanoparticles through Geometric Inversion. Application to Gold Bipyramids. J Phys Chem Lett 2024; 15:3914-3922. [PMID: 38564764 PMCID: PMC11017706 DOI: 10.1021/acs.jpclett.4c00582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
Unraveling the nuanced interplay between the morphology and the optical properties of plasmonic nanoparticles is crucial for targeted applications. Managing the relationship becomes significantly complex when dealing with anisotropic nanoparticles that defy a simple description using parameters like length, width, or aspect ratio. This complexity requires computationally intensive numerical modeling and advanced imaging techniques. To address these challenges, we propose a detailed structural parameter determination of gold nanoparticles using their two-dimensional projections (e.g., micrographs). Employing gold bipyramids (AuBPs) as a model morphology, we can determine their three-dimensional geometry and extract optical features computationally for comparison with the experimental data. To validate our inversion model's effectiveness, we apply it to derive the structural parameters of AuBPs undergoing shape modification through oxidative etching. In summary, our findings allow for the precise characterization of structural parameters for plasmonic nanoparticles during shape transitions, potentially enhancing the comprehension of nanocrystal growth and optimizing plasmonic material design for various applications.
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Affiliation(s)
- José
Luis Montaño-Priede
- Centro
de Física de Materiales (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-Sebastián, Spain
| | - Ana Sánchez-Iglesias
- Centro
de Física de Materiales (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-Sebastián, Spain
| | - Stefano Antonio Mezzasalma
- Materials
Physics Division, Laboratory of Optics and Optical Thin Films, Rud̵er Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
- Institute
for advanced Neutron and X-ray Science (LINXS), Lund University, IDEON
Building: Delta 5 Scheelevägen 19, 223 70 Lund, Sweden
| | - Jordi Sancho-Parramon
- Materials
Physics Division, Laboratory of Optics and Optical Thin Films, Rud̵er Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Marek Grzelczak
- Centro
de Física de Materiales (CSIC-UPV/EHU), and Donostia International
Physics Center (DIPC), Paseo Manuel de Lardizabal 5, 20018 Donostia-Sebastián, Spain
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40
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Chayah M, Luque-González A, Gómez-Pérez V, Salagre D, Al-Shdaifat A, Campos JM, Conejo-García A, Agil A. Synthesis and Anti-Diabetic Activity of an 8-Purine Derivative as a Novel DPP-4 Inhibitor in Obese Diabetic Zücker Rats. Drug Des Devel Ther 2024; 18:1133-1141. [PMID: 38618281 PMCID: PMC11016271 DOI: 10.2147/dddt.s450917] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/21/2024] [Indexed: 04/16/2024] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the world's principal metabolic diseases characterized by chronic hyperglycemia. The gut incretin hormones, glucagon-like peptide 1 (GLP-1) and gastric inhibitory polypeptide (GIP), which has been proposed as a new treatment for T2DM, are extensively metabolized by Dipeptidyl peptidase 4 (DPP-4). Inhibitors of DPP-4 block the degradation of GLP-1 and GIP and may increase their natural circulating levels, favoring glycemic control in T2DM. A novel and potent selective inhibitor of DPP-4 with an 8-purine derived structure (1) has been developed and tested in vitro and in vivo in Zücker obese diabetic fatty (ZDF) rats, an experimental model of the metabolic syndrome and T2DM to assess the inhibitory activity using vildagliptin as reference standard. ZDF rats were subdivided into three groups (n = 7/group), control (C-ZDF), and those treated with compound 1 (Compound1-ZDF) and with vildagliptin (V-ZDF), both at 10 mg/kg/d rat body weight, in their drinking water for 12 weeks, and a group of lean littermates (ZL) was used. ZDF rats developed DM (fasting hyperglycemia, 425 ± 14.8 mg/dL; chronic hyperglycemia, HbA1c 8.5 ± 0.4%), compared to ZL rats. Compound 1 and vildagliptin reduced sustained HbAl1c (14% and 10.6%, P < 0.05, respectively) and fasting hyperglycemia values (24% and 19%, P < 0.05, respectively) compared to C-ZDF group (P < 0.001). Compound 1 and vildagliptin have shown a potent activity with an IC50 value of 4.92 and 3.21 µM, respectively. These data demonstrate that oral compound 1 administration improves diabetes in ZDF rats by the inhibitory effect on DPP-4, and the potential to be a novel, efficient and tolerable approach for treating diabetes of obesity-related T2DM, in ZDF rats.
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Affiliation(s)
- Meriem Chayah
- Department of Medicinal and Organic Chemistry and Excellence Research Unit of Chemistry Applied to Biomedicine and the Environment, Faculty of Pharmacy, University of Granada, Granada, Spain
- Biosanitary Institute of Granada (Ibs.granada), SAS-University of Granada, Granada, Spain
- Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government (GENYO), Granada, Spain
| | - Angélica Luque-González
- Department of Medicinal and Organic Chemistry and Excellence Research Unit of Chemistry Applied to Biomedicine and the Environment, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - Verónica Gómez-Pérez
- Department of Medicinal and Organic Chemistry and Excellence Research Unit of Chemistry Applied to Biomedicine and the Environment, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - Diego Salagre
- Department of Pharmacology, Faculty of Medicine, University of Granada, Granada, Spain
- Federico Oloriz Neuroscience Institute, University of Granada, Granada, Spain
| | - Amjad Al-Shdaifat
- Department of Medicine and Family Medicine, Faculty of Medicine, Hashemite University, Zarqa, Jordania
| | - Joaquín María Campos
- Department of Medicinal and Organic Chemistry and Excellence Research Unit of Chemistry Applied to Biomedicine and the Environment, Faculty of Pharmacy, University of Granada, Granada, Spain
- Biosanitary Institute of Granada (Ibs.granada), SAS-University of Granada, Granada, Spain
| | - Ana Conejo-García
- Department of Medicinal and Organic Chemistry and Excellence Research Unit of Chemistry Applied to Biomedicine and the Environment, Faculty of Pharmacy, University of Granada, Granada, Spain
- Biosanitary Institute of Granada (Ibs.granada), SAS-University of Granada, Granada, Spain
| | - Ahmad Agil
- Biosanitary Institute of Granada (Ibs.granada), SAS-University of Granada, Granada, Spain
- Department of Pharmacology, Faculty of Medicine, University of Granada, Granada, Spain
- Federico Oloriz Neuroscience Institute, University of Granada, Granada, Spain
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Bromberg L, Magariños B, Concheiro A, Hatton TA, Alvarez-Lorenzo C. Nonleaching Biocidal N-Halamine-Functionalized Polyamine-, Guanidine-, and Hydantoin-Based Coatings. Ind Eng Chem Res 2024; 63:6268-6278. [PMID: 38617110 PMCID: PMC11010268 DOI: 10.1021/acs.iecr.4c00320] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 04/16/2024]
Abstract
Fibrous materials with inherent antimicrobial properties can help in real-time deactivation of microorganisms, enabling multiple uses while reducing secondary infections. Coatings with antiviral polymers enhance the surface functionality for existing and potential future pandemics. Herein, we demonstrated a straightforward route toward biocidal surface creation using polymers with nucleophilic biguanide, guanidine, and hydantoin groups that are covalently attached onto a solid support. Biocidal poly(N-vinylguanidine) (PVG) and poly(allylamine-co-4-aminopyridine-co-5-(4-hydroxybenzylidene)hydantoin) (PAH) were introduced for coating applications along with commercially available polyvinylamine (PVAm) and poly(hexamethylene biguanide) (PHMB). Nonleaching coatings were created by first fabricating bifunctional siloxane or isocyanate precursor coatings on the cotton, nylon-cotton, and glass fiber fabric, followed by the polymer attachment. The developed grafting methods ensured the stability of the coating and the reuse of the material while maintaining the biocidal properties. Halogenation of polymer-coated fabric was conducted by aqueous solutions of sodium hypochlorite or in situ generation of hypobromous acid (HOBr), resulting in surfaces coated by N-halamines with high contents of active > N-Cl or > N-Br groups. The polymer-coated fabrics were stable in multiple laundry cycles and maintained hydrophilic character after coating and halogenation. Halogenated polymer-coated fabrics completely inactivated human respiratory coronavirus based on a contact-killing mechanism and were shown to be reusable after recharging with bromine or chlorine.
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Affiliation(s)
- Lev Bromberg
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Beatriz Magariños
- Department
of Microbiology and Parasitology, Facultad de Biología, CIBUS, Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain
| | - Angel Concheiro
- Department
of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma
Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS),
and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain
| | - T. Alan Hatton
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Carmen Alvarez-Lorenzo
- Department
of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma
Group (GI-1645), Facultad de Farmacia, Instituto de Materiales (iMATUS),
and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain
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42
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Sardo M, Morais T, Soares M, Vieira R, Ilkaeva M, Lourenço MAO, Marín-Montesinos I, Mafra L. Unravelling the structure of CO 2 in silica adsorbents: an NMR and computational perspective. Chem Commun (Camb) 2024; 60:4015-4035. [PMID: 38525497 PMCID: PMC11003455 DOI: 10.1039/d3cc05942a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
This comprehensive review describes recent advancements in the use of solid-state NMR-assisted methods and computational modeling strategies to unravel gas adsorption mechanisms and CO2 speciation in porous CO2-adsorbent silica materials at the atomic scale. This work provides new perspectives for the innovative modifications of these materials rendering them more amenable to the use of advanced NMR methods.
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Affiliation(s)
- Mariana Sardo
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tiago Morais
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemistry, University of Iceland, Science Institute, Dunhaga 3, 107 Reykjavik, Iceland
| | - Márcio Soares
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ricardo Vieira
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Marina Ilkaeva
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemical and Environmental Engineering, University of Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain
| | - Mirtha A O Lourenço
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ildefonso Marín-Montesinos
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Luís Mafra
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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43
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Gallo-Orive Á, Moreno-Guzmán M, Sanchez-Paniagua M, Montero-Calle A, Barderas R, Escarpa A. Gold Nanoparticle-Decorated Catalytic Micromotor-Based Aptassay for Rapid Electrochemical Label-Free Amyloid-β42 Oligomer Determination in Clinical Samples from Alzheimer's Patients. Anal Chem 2024; 96:5509-5518. [PMID: 38551492 PMCID: PMC11007680 DOI: 10.1021/acs.analchem.3c05665] [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: 12/13/2023] [Revised: 02/08/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
Micromotor (MM) technology offers a valuable and smart on-the-move biosensing microscale approach in clinical settings where sample availability is scarce in the case of Alzheimer's disease (AD). Soluble amyloid-β protein oligomers (AβO) (mainly AβO42) that circulate in biological fluids have been recognized as a molecular biomarker and therapeutic target of AD due to their high toxicity, and they are correlated much more strongly with AD compared to the insoluble Aβ monomers. A graphene oxide (GO)-gold nanoparticles (AuNPs)/nickel (Ni)/platinum nanoparticles (PtNPs) micromotors (MMGO-AuNPs)-based electrochemical label-free aptassay is proposed for sensitive, accurate, and rapid determination of AβO42 in complex clinical samples such as brain tissue, cerebrospinal fluid (CSF), and plasma from AD patients. An approach that implies the in situ formation of AuNPs on the GO external layer of tubular MM in only one step during MM electrosynthesis was performed (MMGO-AuNPs). The AβO42 specific thiolated-aptamer (AptAβO42) was immobilized in the MMGO-AuNPs via Au-S interaction, allowing for the selective recognition of the AβO42 (MMGO-AuNPs-AptAβO42-AβO42). AuNPs were smartly used not only to covalently bind a specific thiolated-aptamer for the design of a label-free electrochemical aptassay but also to improve the final MM propulsion performance due to their catalytic activity (approximately 2.0× speed). This on-the-move bioplatform provided a fast (5 min), selective, precise (RSD < 8%), and accurate quantification of AβO42 (recoveries 94-102%) with excellent sensitivity (LOD = 0.10 pg mL-1) and wide linear range (0.5-500 pg mL-1) in ultralow volumes of the clinical sample of AD patients (5 μL), without any dilution. Remarkably, our MM-based bioplatform demonstrated the competitiveness for the determination of AβO42 in the target samples against the dot blot analysis, which requires more than 14 h to provide qualitative results only. It is also important to highlight its applicability to the potential analysis of liquid biopsies as plasma and CSF samples, improving the reliability of the diagnosis given the heterogeneity and temporal complexity of neurodegenerative diseases. The excellent results obtained demonstrate the analytical potency of our approach as a future tool for clinical/POCT (Point-of-care testing) routine scenarios.
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Affiliation(s)
- Álvaro Gallo-Orive
- Department
of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28802 Alcalá de Henares, Madrid, Spain
- Department
of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Moncloa-Aravaca, Madrid, Spain
| | - María Moreno-Guzmán
- Department
of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Moncloa-Aravaca, Madrid, Spain
| | - Marta Sanchez-Paniagua
- Department
of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Moncloa-Aravaca, Madrid, Spain
| | - Ana Montero-Calle
- Chronic
Disease Programme, UFIEC, Carlos III Health
Institute, 28220 Majadahonda, Madrid, Spain
| | - Rodrigo Barderas
- Chronic
Disease Programme, UFIEC, Carlos III Health
Institute, 28220 Majadahonda, Madrid, Spain
| | - Alberto Escarpa
- Department
of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28802 Alcalá de Henares, Madrid, Spain
- Chemical
Research Institute “Andrés M. Del Rio”, University of Alcalá, 28802 Alcalá de Henares, Madrid, Spain
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44
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Badenhorst W, Kuldeep, Manzanares JA, Murtomäki L. Unexpected Behavior of Streaming Potential in Ion-Exchange Membranes. Langmuir 2024; 40:7512-7519. [PMID: 38527179 PMCID: PMC11008252 DOI: 10.1021/acs.langmuir.4c00027] [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] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 03/27/2024]
Abstract
Streaming potential is one of the numerous electrokinetic phenomena created when an electrolyte flows along a charged surface. In membranes, applying the charged cylindrical pore model, streaming potential can be used to estimate, e.g., the pore size and the charge density of such pores. In this study, we are extending streaming potential experiments to ion-exchange membranes (IEMs) and trying to verify the existing models with the measurements. According to the Donnan equilibrium between an electrolyte solution and an IEM, the solution concentration should not affect the streaming potential if the membrane charge is even moderately low. Yet, the streaming potential varied substantially with the solution concentration, as in the case of nearly neutral porous membranes. In addition, the existing theory does not include the membrane thickness, but we found that thinner membranes showed larger streaming potentials. These dilemmas are discussed in this paper.
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Affiliation(s)
- Wouter Badenhorst
- Department
of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, P.O. Box 1600, Aalto 00076, Finland
| | - Kuldeep
- Department
of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, P.O. Box 1600, Aalto 00076, Finland
| | - Jose Antonio Manzanares
- Department
of Thermodynamics, University of Valencia, c/Dr. Moliner, 50, Burjassot E-46100, Spain
| | - Lasse Murtomäki
- Department
of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, P.O. Box 1600, Aalto 00076, Finland
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45
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Sattler R, Zhang R, Gupta G, Du M, Runge PM, Altenbach H, Androsch R, Beiner M. Influence of Crystallization Kinetics and Flow Behavior on Structural Inhomogeneities in 3D-Printed Parts Made from Semi-Crystalline Polymers. Macromolecules 2024; 57:3066-3080. [PMID: 38616808 PMCID: PMC11008537 DOI: 10.1021/acs.macromol.3c01940] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 04/16/2024]
Abstract
We report the results of a study focusing on the influence of crystallization kinetics and flow behavior on structural inhomogeneities in 3D-printed parts made from polyamide 12 (PA12) and poly(lactic acid) (PLA) by dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), fast scanning calorimetry (FSC), and wide-angle X-ray diffraction (WAXD). Temperature-dependent WAXD measurements on the neat PLA filament reveal that PLA forms a single orthorhombic α phase during slow cooling and subsequent 2nd heating. The PA12 filament shows a well pronounced polymorphism with a reversible solid-solid phase transition between the (pseudo)hexagonal γ phase near room temperature and the monoclinic α' phase above the Brill transition temperature TB = 140 °C. The influence of the print bed temperature Tb on structure formation, polymorphic state, and degree of crystallinity χc of the 3D-printed parts is investigated by height and depth-dependent WAXD scans and compared with that of 3D-printed single layers, used as a reference. It is found that the heat transferred from successive layers has a strong influence on the polymorphic state of PA12 since a superimposed mixture of γ and α phases is present in the 3D-printed parts. In the case of PLA, a single α phase is formed. The print bed temperature has, in comparison to PA12, a major influence on the degree of crystallinity χc and thus the homogeneity of the 3D-printed parts, especially close to the print bed. By comparing the obtained results from WAXD, DMA, DSC, and FSC measurements with relevant printing times, guidelines for 3D-printed parts with a homogeneous structure are derived.
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Affiliation(s)
- Rene Sattler
- Fraunhofer
Institute for Microstructure of Materials and Systems IMWS, Walter-Hülse-Str. 1, DE-06120 Halle (Saale), Germany
- Faculty
of Natural Sciences II, Martin-Luther-University
Halle-Wittenberg, Heinrich-Damerow-Str.
4, D-06120 Halle
(Saale), Germany
| | - Rui Zhang
- Interdisciplinary
Center for Transfer-Oriented Research in Natural Sciences, Martin-Luther-University Halle-Wittenberg, Universitätsplatz 10, D-06120 Halle (Saale), Germany
| | - Gaurav Gupta
- Fraunhofer
Institute for Microstructure of Materials and Systems IMWS, Walter-Hülse-Str. 1, DE-06120 Halle (Saale), Germany
- Faculty
of Natural Sciences II, Martin-Luther-University
Halle-Wittenberg, Heinrich-Damerow-Str.
4, D-06120 Halle
(Saale), Germany
| | - Mengxue Du
- Interdisciplinary
Center for Transfer-Oriented Research in Natural Sciences, Martin-Luther-University Halle-Wittenberg, Universitätsplatz 10, D-06120 Halle (Saale), Germany
| | - Paul-Maximilian Runge
- Institute
of Mechanics, Otto-von-Guericke-University
Magdeburg, Universitätsplatz
2, D-39106 Magdeburg, Germany
| | - Holm Altenbach
- Institute
of Mechanics, Otto-von-Guericke-University
Magdeburg, Universitätsplatz
2, D-39106 Magdeburg, Germany
| | - René Androsch
- Interdisciplinary
Center for Transfer-Oriented Research in Natural Sciences, Martin-Luther-University Halle-Wittenberg, Universitätsplatz 10, D-06120 Halle (Saale), Germany
| | - Mario Beiner
- Fraunhofer
Institute for Microstructure of Materials and Systems IMWS, Walter-Hülse-Str. 1, DE-06120 Halle (Saale), Germany
- Faculty
of Natural Sciences II, Martin-Luther-University
Halle-Wittenberg, Heinrich-Damerow-Str.
4, D-06120 Halle
(Saale), Germany
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46
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Ballester F, Hernández-García A, Santana MD, Bautista D, Ashoo P, Ortega-Forte E, Barone G, Ruiz J. Photoactivatable Ruthenium Complexes Containing Minimal Straining Benzothiazolyl-1,2,3-triazole Chelators for Cancer Treatment. Inorg Chem 2024; 63:6202-6216. [PMID: 38385171 PMCID: PMC11005040 DOI: 10.1021/acs.inorgchem.3c04432] [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: 12/13/2023] [Revised: 01/19/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
Ruthenium(II) complexes containing diimine ligands have contributed to the development of agents for photoactivated chemotherapy. Several approaches have been used to obtain photolabile Ru(II) complexes. The two most explored have been the use of monodentate ligands and the incorporation of steric effects between the bidentate ligands and the Ru(II). However, the introduction of electronic effects in the ligands has been less explored. Herein, we report a systematic experimental, theoretical, and photocytotoxicity study of a novel series of Ru(II) complexes Ru1-Ru5 of general formula [Ru(phen)2(N∧N')]2+, where N∧N' are different minimal strained ligands based on the 1-aryl-4-benzothiazolyl-1,2,3-triazole (BTAT) scaffold, being CH3 (Ru1), F (Ru2), CF3 (Ru3), NO2 (Ru4), and N(CH3)2 (Ru5) substituents in the R4 of the phenyl ring. The complexes are stable in solution in the dark, but upon irradiation in water with blue light (λex = 465 nm, 4 mW/cm2) photoejection of the ligand BTAT was observed by HPLC-MS spectrometry and UV-vis spectroscopy, with t1/2 ranging from 4.5 to 14.15 min depending of the electronic properties of the corresponding BTAT, being Ru4 the less photolabile (the one containing the more electron withdrawing substituent, NO2). The properties of the ground state singlet and excited state triplet of Ru1-Ru5 have been explored using density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations. A mechanism for the photoejection of the BTAT ligand from the Ru complexes, in H2O, is proposed. Phototoxicity studies in A375 and HeLa human cancer cell lines showed that the new Ru BTAT complexes were strongly phototoxic. An enhancement of the emission intensity of HeLa cells treated with Ru5 was observed in response to increasing doses of light due to the photoejection of the BTAT ligand. These studies suggest that BTAT could serve as a photocleavable protecting group for the cytotoxic bis-aqua ruthenium warhead [Ru(phen)2(OH2)2]2+.
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Affiliation(s)
- Francisco
J. Ballester
- Departamento
de Química Inorgánica, Universidad
de Murcia and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain
| | - Alba Hernández-García
- Departamento
de Química Inorgánica, Universidad
de Murcia and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain
| | - M. Dolores Santana
- Departamento
de Química Inorgánica, Universidad
de Murcia and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain
| | | | - Pezhman Ashoo
- Departamento
de Química Inorgánica, Universidad
de Murcia and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain
| | - Enrique Ortega-Forte
- Departamento
de Química Inorgánica, Universidad
de Murcia and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain
| | - Giampaolo Barone
- Dipartimento
di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (SteBiCeF), Università degli Studi di Palermo, I-90128 Palermo, Italy
| | - José Ruiz
- Departamento
de Química Inorgánica, Universidad
de Murcia and Biomedical Research Institute of Murcia (IMIB-Arrixaca), E-30100 Murcia, Spain
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47
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Giakoumi M, Stephanou PS, Kokkinidou D, Papastefanou C, Anayiotos A, Kapnisis K. A Predictive Toxicokinetic Model for Nickel Leaching from Vascular Stents. ACS Biomater Sci Eng 2024; 10:2534-2551. [PMID: 38525821 PMCID: PMC11005016 DOI: 10.1021/acsbiomaterials.3c01436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 03/26/2024]
Abstract
In vitro testing methods offer valuable insights into the corrosion vulnerability of metal implants and enable prompt comparison between devices. However, they fall short in predicting the extent of leaching and the biodistribution of implant byproducts under in vivo conditions. Physiologically based toxicokinetic (PBTK) models are capable of quantitatively establishing such correlations and therefore provide a powerful tool in advancing nonclinical methods to test medical implants and assess patient exposure to implant debris. In this study, we present a multicompartment PBTK model and a simulation engine for toxicological risk assessment of vascular stents. The mathematical model consists of a detailed set of constitutive equations that describe the transfer of nickel ions from the device to peri-implant tissue and circulation and the nickel mass exchange between blood and the various tissues/organs and excreta. Model parameterization was performed using (1) in-house-produced data from immersion testing to compute the device-specific diffusion parameters and (2) full-scale animal in situ implantation studies to extract the mammalian-specific biokinetic functions that characterize the time-dependent biodistribution of the released ions. The PBTK model was put to the test using a simulation engine to estimate the concentration-time profiles, along with confidence intervals through probabilistic Monte Carlo, of nickel ions leaching from the implanted devices and determine if permissible exposure limits are exceeded. The model-derived output demonstrated prognostic conformity with reported experimental data, indicating that it may provide the basis for the broader use of modeling and simulation tools to guide the optimal design of implantable devices in compliance with exposure limits and other regulatory requirements.
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Affiliation(s)
- Matheos Giakoumi
- Department
of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3036, Cyprus
| | - Pavlos S. Stephanou
- Department
of Chemical Engineering, Cyprus University
of Technology, Limassol 3036, Cyprus
| | - Despoina Kokkinidou
- Department
of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3036, Cyprus
| | | | - Andreas Anayiotos
- Department
of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3036, Cyprus
| | - Konstantinos Kapnisis
- Department
of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3036, Cyprus
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48
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Biswas B, Siddiqui AI, Majee MC, Saha SK, Mondal B, Saha R, Gómez García CJ. Heptanuclear Mixed-Valence Co 4IIICo 3II Molecular Wheel─A Molecular Analogue of Layered Double Hydroxides with Single-Molecule Magnet Behavior and Electrocatalytic Activity for Hydrogen Evolution Reactions. Inorg Chem 2024; 63:6161-6172. [PMID: 38526851 PMCID: PMC11005049 DOI: 10.1021/acs.inorgchem.3c04065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/26/2024] [Accepted: 02/26/2024] [Indexed: 03/27/2024]
Abstract
We present a bifunctional heptanuclear cobalt(II)/cobalt(III) molecular complex formulated as [Co7(μ3-OH)4(H2L1)2(HL2)2](NO3)6·6H2O (1) (where H5L1 is 2,2'-(((1E,1'E)-((2-hydroxy-5-methyl-1,3-phenylene)bis(methanylylidene))bis(azanylylidene))bis(propane-1,3-diol)) and H2L2 is 2-amino-1,3-propanediol). Compound 1 has been characterized by single-crystal X-ray diffraction analysis along with other spectral and magnetic measurements. Structural analysis indicates that 1 contains a mixed-valence Co7 cluster where a central Co(II) ion is connected to six different Co centers (four CoIII and two CoII ions) by four μ3-OH groups, giving rise to a planar heptanuclear cluster that resembles a molecular fragment of a layered double hydroxide (LDH). Two triply deprotonated (H2L1)3- ligands form the outer side of the cluster while two singly deprotonated (HL2)- ligands are located at the top and bottom of the central heptanuclear core. Variable temperature magnetic measurements indicate the presence of weak ferromagnetic CoII···CoII interactions (J = 3.53(6) cm-1) within the linear trinuclear CoII cluster. AC susceptibility measurements show that 1 is a field-induced single-molecule magnet (SMM) with τ0 = 8.2(7) × 10-7 s and Ueff = 11.3(4) K. The electrocatalytic hydrogen evolution reaction (HER) activity of 1 in homogeneous phase shows an overpotential of 455 mV, with a Faradaic efficiency of 81% and a TOF of 8.97 × 104 μmol H2 h-1 mol-1.
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Affiliation(s)
- Biplab Biswas
- Department
of Chemistry, Kazi Nazrul University, Asansol 713340, West Bengal, India
- Department
of Chemistry, Hooghly Mohsin College, Chinsurah 712101, West Bengal, India
| | | | | | - Swadhin Kumar Saha
- Department
of Chemistry, Kazi Nazrul University, Asansol 713340, West Bengal, India
| | - Biswajit Mondal
- Department
of Chemistry, IIT Gandhinagar, Palaj 382355, Gujarat, India
| | - Rajat Saha
- Department
of Chemistry, Kazi Nazrul University, Asansol 713340, West Bengal, India
- Departamento
de Química Inorgánica, Universidad
de Valencia, Burjasot, Valencia 46100, Spain
| | - Carlos J. Gómez García
- Departamento
de Química Inorgánica, Universidad
de Valencia, Burjasot, Valencia 46100, Spain
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49
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Cuadrado-Matías R, Moraga-Fernández A, Peralbo-Moreno A, Negredo AI, Sánchez-Seco MP, Ruiz-Fons F. Crimean-Congo haemorrhagic fever virus in questing non-Hyalomma spp. ticks in Northwest Spain, 2021. Zoonoses Public Health 2024. [PMID: 38590023 DOI: 10.1111/zph.13130] [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: 01/15/2024] [Revised: 02/17/2024] [Accepted: 03/22/2024] [Indexed: 04/10/2024]
Abstract
Crimean-Congo haemorrhagic fever (CCHF) unexpectedly emerged in humans in Northwest Spain in 2021, and two additional cases were reported in the region in 2022. The 2021 case was associated with a tick bite on the outskirts of the city where the patient lived. PCR analysis of 95 questing ticks collected in the outskirts of that city in 2021, none of the genus Hyalomma, revealed a prevalence of confirmed CCHF virus (CCHFV) infection of 10.5%. Our results in this emerging scenario suggest the need to consider that CCHFV may be effectively spreading to Northwest Spain and to urgently understand any possible role of non-Hyalomma spp. ticks in the eco-epidemiological dynamics of CCHFV.
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Affiliation(s)
- Raúl Cuadrado-Matías
- Health & Biotechnology (SaBio) Group, Spanish Game & Wildlife Research Institute (IREC), CSIC-UCLM-JCCM, Ciudad Real, Spain
| | - Alberto Moraga-Fernández
- Health & Biotechnology (SaBio) Group, Spanish Game & Wildlife Research Institute (IREC), CSIC-UCLM-JCCM, Ciudad Real, Spain
| | - Alfonso Peralbo-Moreno
- Health & Biotechnology (SaBio) Group, Spanish Game & Wildlife Research Institute (IREC), CSIC-UCLM-JCCM, Ciudad Real, Spain
| | - Ana Isabel Negredo
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - María Paz Sánchez-Seco
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco Ruiz-Fons
- Health & Biotechnology (SaBio) Group, Spanish Game & Wildlife Research Institute (IREC), CSIC-UCLM-JCCM, Ciudad Real, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
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50
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Barreto Pinilla CM, da Silva Oliveira W, de Oliveira Garcia A, Spadoti LM, Redruello B, Del Rio B, Alvarez MA, Torres Silva E Alves A. Brazilian indigenous nonstarter lactic acid bacteria enhance the diversification of volatile compounds in short-aged cheese. Lett Appl Microbiol 2024; 77:ovae036. [PMID: 38573828 DOI: 10.1093/lambio/ovae036] [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: 01/25/2024] [Revised: 03/14/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024]
Abstract
There is growing interest in using autochthonous lactic acid bacteria (LAB) that provide unique sensory characteristics to dairy products without affecting their safety and quality. This work studied the capacity of three Brazilian indigenous nonstarter LABs (NSLAB) to produce biogenic amines (BAs) and evaluated their effect on the volatile organic compounds (VOCs), microbial LAB communities, and physicochemical profile of short-aged cheese. Initially, the strain's potential for biosynthesis of BAs was assessed by PCR and in vitro assays. Then, a pilot-scale cheese was produced, including the NSLAB, and the microbial and VOC profiles were analyzed after 25 and 45 days of ripening. As a results, the strains did not present genes related to relevant BAs and did not produce them in vitro. During cheese ripening, the Lactococci counts were reduced, probably in the production of alcohols and acid compounds by the NSLAB. Each strain produces a unique VOC profile that changes over the ripening time without the main VOCs related to rancid or old cheese. Particularly, the use of the strain Lacticaseibacillus. paracasei ItalPN16 resulted in production of ester compounds with fruity notes. Thus, indigenous NSLAB could be a valuable tool for the enhancement and diversification of flavor in short-aged cheese.
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Affiliation(s)
| | - Wellington da Silva Oliveira
- Reference Laboratory for Physical, Sensory and Statistics Analysis, Science and Food Quality Center, Food Technology Institute (ITAL), Avenida Brasil 2880, 13070-178 Campinas, SP, Brazil
| | - Aline de Oliveira Garcia
- Reference Laboratory for Physical, Sensory and Statistics Analysis, Science and Food Quality Center, Food Technology Institute (ITAL), Avenida Brasil 2880, 13070-178 Campinas, SP, Brazil
| | - Leila Maria Spadoti
- Dairy Technology Center (TECNOLAT) of the Food Technology Institute (ITAL), SP 13070-178, Campinas, São Paulo , Brazil
| | - Begoña Redruello
- Molecular Microbiology Group, Dairy Research Institute (IPLA, CSIC), Paseo Río Linares, s/n, 33300 Villaviciosa, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, s/n, 33011, Oviedo, Spain
| | - Beatriz Del Rio
- Molecular Microbiology Group, Dairy Research Institute (IPLA, CSIC), Paseo Río Linares, s/n, 33300 Villaviciosa, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, s/n, 33011, Oviedo, Spain
| | - Miguel Angel Alvarez
- Molecular Microbiology Group, Dairy Research Institute (IPLA, CSIC), Paseo Río Linares, s/n, 33300 Villaviciosa, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Av. del Hospital Universitario, s/n, 33011, Oviedo, Spain
| | - Adriana Torres Silva E Alves
- Dairy Technology Center (TECNOLAT) of the Food Technology Institute (ITAL), SP 13070-178, Campinas, São Paulo , Brazil
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