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Dehydrogenase oxidase function: the interplay between substrate binding and flavin microenvironment.
ACS Catal
January 2025
Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy 27100.
Redox enzymes, mostly equipped with metal or organic cofactors, can vary their reactivity with oxygen by orders of magnitudes. Understanding how oxygen reactivity is controlled by the protein milieu remains an open issue with broad implications for mechanistic enzymology and enzyme design. Here, we address this problem by focusing on a widespread group of flavoenzymes that oxidize phenolic compounds derived from microbial lignin degradation, using either oxygen or a cytochrome c as electron acceptors.
View Article and Find Full Text PDFPrevalence and factors associated with severe fatigue 2 years into the COVID-19 pandemic: a cross-sectional population-based study in Geneva, Switzerland.
BMJ Open
January 2025
Unit of Population Epidemiology, Division of Primary Care Medicine, HUG, Geneva, Switzerland.
Objectives: This study aims (1) to assess the prevalence of severe fatigue among the general population of Geneva, 2 years into the COVID-19 pandemic and (2) to identify pandemic and non-pandemic factors associated with severe fatigue.
Design: Cross-sectional population-based survey conducted in Spring 2022.
Setting: General adult population of Geneva, Switzerland.
Purification and Electron Transfer from Soluble c-Type Cytochrome TorC to TorA for Trimethylamine N-Oxide Reduction.
Int J Mol Sci
December 2024
Department of Molecular Enzymology, Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476 Potsdam, Germany.
The enterobacterium present in the human gut can reduce trimethylamine N-oxide (TMAO) to trimethylamine during anaerobic respiration. The TMAO reductase TorA is a monomeric, bis-molybdopterin guanine dinucleotide (bis-MGD) cofactor-containing enzyme that belongs to the dimethyl sulfoxide reductase family of molybdoenzymes. TorA is anchored to the membrane via TorC, a pentahemic -type cytochrome which receives the electrons from the menaquinol pool.
View Article and Find Full Text PDFMetabolic Switch in Endocrine Resistant Estrogen Receptor Positive Breast Cancer.
bioRxiv
December 2024
Department of Medicine, Division of Medical Oncology, University of Colorado Denver Anschutz Medical Campus, Aurora, Colorado USA.
Purpose: The development of endocrine resistance remains a significant challenge in the clinical management of estrogen receptor-positive () breast cancer. Metabolic reprogramming is a prominent component of endocrine resistance and a potential therapeutic intervention point. However, a limited understanding of which metabolic changes are conserved across the heterogeneous landscape of ER+ breast cancer or how metabolic changes factor into ER DNA binding patterns hinder our ability to target metabolic adaptation as a treatment strategy.
View Article and Find Full Text PDFProteomics Analysis of Five Potential Plasma-derived Exosomal Biomarkers for Acute Myocardial Infarction.
Curr Med Chem
January 2025
Department of Cardiology, Taizhou Hospital of Zhejiang Province, affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China.
Aims: This study was to explore the relationship between plasma exosomes and Acute myocardial infarction (AMI).
Background: Acute myocardial infarction (AMI) is one of the most common cardiovascular complications. Recent studies have shown that exosomes play a crucial role in the development and progression of cardiovascular diseases.
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