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Dissecting the biophysical mechanisms of oleate hydratase association with membranes.
Front Mol Biosci
January 2025
Department of Microbiology, Immunology, and Molecular Genetics, University of Kentucky, Lexington, KY, United States.
This study investigates the dynamics of oleate hydratase (OhyA), a bacterial flavoenzyme from , and its interactions with lipid membranes, focusing on the factors influencing membrane binding and oligomerization. OhyA catalyzes the hydration of unsaturated fatty acids, playing a key role in bacterial pathogenesis by neutralizing host antimicrobial fatty acids. OhyA binds the membrane bilayer to access membrane-embedded substrates for catalysis, and structural studies have revealed that OhyA forms oligomers on membrane surfaces, stabilized by both protein-protein and protein-lipid interactions.
View Article and Find Full Text PDFElucidating the causal relationship between gut microbiota, metabolites, and diabetic nephropathy in European patients: Revelations from genome-wide bidirectional mendelian randomization analysis.
Front Endocrinol (Lausanne)
January 2025
Department of Endocrinology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Objective: Previous observational studies suggest a potential link between gut microbiota, metabolites, and diabetic nephropathy. However, the exact causal relationship among these factors remains unclear.
Method: We conducted a two-sample bidirectional Mendelian randomization study using summary statistics from the IEU OpenGWAS Project database to investigate gut microbiota, metabolites, and diabetic nephropathy.
The response of microbial communities to environmental factors in bank soil and river sediment: A case study along the mainstream of the Yangtze River.
Environ Res
January 2025
Humboldt-Universität zu Berlin, Institute of Biology, Ecology, 10115, Berlin, Germany.
Microbial communities, which are crucial for ecosystem function and sustainability, are under environmental pressure. Using phospholipid fatty acids (PLFAs) as a measure of microbial biomass and community structure, the responses of microorganisms to environmental drivers were studied in bank soil and sediment alongside the Yangtze River in China. Thirty-eight sites were investigated over a length of 5500 kilometers, ranging from the plateau to the estuary.
View Article and Find Full Text PDFMaternal lipids in overweight and obesity: implications for pregnancy outcomes and offspring's body composition.
Semin Immunopathol
January 2025
Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Overweight and obesity (OWO) are linked to dyslipidemia and low-grade chronic inflammation, which is fueled by lipotoxicity and oxidative stress. In the context of pregnancy, maternal OWO has long been known to negatively impact on pregnancy outcomes and maternal health, as well as to imprint a higher risk for diseases in offspring later in life. Emerging research suggests that individual lipid metabolites, which collectively form the lipidome, may play a causal role in the pathogenesis of OWO-related diseases.
View Article and Find Full Text PDFsp. nov., a novel marine bacterium isolated from the biofilm of concrete breakwater structures.
Int J Syst Evol Microbiol
January 2025
Guangdong Provincial Key Laboratory of Marine Biology, Shantou University, Shantou 515063, PR China.
Marine biofilms were newly revealed as a bank of hidden microbial diversity and functional potential. In this study, a Gram-stain-negative, aerobic, oval and non-motile bacterium, designated LMIT008, was isolated from the biofilm of concrete breakwater structures located in the coastal area of Shantou, PR China. Strain LMIT008 was found to grow at salinities of 1-7% NaCl, at pH 5-8 and at temperatures 10-40 °C.
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