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Gut bacteria Prevotellaceae related lithocholic acid metabolism promotes colonic inflammation.
J Transl Med
January 2025
Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China.
Background: The conversion of primary bile acids to secondary bile acids by the gut microbiota has been implicated in colonic inflammation. This study investigated the role of gut microbiota related bile acid metabolism in colonic inflammation in both patients with inflammatory bowel disease (IBD) and a murine model of dextran sulfate sodium (DSS)-induced colitis.
Methods: Bile acids in fecal samples from patients with IBD and DSS-induced colitis mice, with and without antibiotic treatment, were analyzed using ultraperformance liquid chromatography-mass spectrometry (UPLC-MS).
Rice transcription factor bHLH25 confers resistance to multiple diseases by sensing HO.
Cell Res
January 2025
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan, China.
Hydrogen peroxide (HO) is a ubiquitous signal regulating many biological processes, including innate immunity, in all eukaryotes. However, it remains largely unknown that how transcription factors directly sense HO in eukaryotes. Here, we report that rice basic/helix-loop-helix transcription factor bHLH25 directly senses HO to confer resistance to multiple diseases caused by fungi or bacteria.
View Article and Find Full Text PDFBiosynthesized ZnO NPs loaded-electrospun PVA/sodium alginate/glycine nanofibers: synthesis, spinning optimization and antimicrobial activity evaluation.
Sci Rep
January 2025
Chemistry Department, Faculty of Science, Menoufia University, Shibin El-Kom, 32511, Egypt.
In this work, microalgae-based zinc oxide nanoparticles loaded with electrospun polyvinyl alcohol (PVA)/sodium alginate (SA) nanofibers were fabricated by electro-spinner. PVA/SA fibrous mats were crosslinked by citric acid, which enhanced their thermal stability and swelling behavior. Green-synthesized ZnO NPs were laboratory synthesized and characterized by FTIR, XRD, EDX, SEM, TEM and TGA analyses.
View Article and Find Full Text PDF[Regulation of Bifidobacterium-short chain fatty acid metabolism and improvement of intestinal toxicity of vinegar-processed Euphorbiae Pekinensis Radix].
Zhongguo Zhong Yao Za Zhi
December 2024
School of Pharmaceutical Sciences, Zhejiang Chinese Medical University Hangzhou 311400, China.
To explore the mechanism by which vinegar-processed Euphorbiae Pekinensis Radix regulates gut microbiota and reduces intestinal toxicity, this study aimed to identify key microbial communities related to vinegar-induced detoxification and verify their functions. Using a derivatization method, the study measured the content of short-chain fatty acids(SCFAs) in feces before and after vinegar-processing of Euphorbiae Pekinensis Radix. Combined with the results of previous gut microbiota sequencing, correlation analysis was used to identify key microbial communities related to SCFAs content.
View Article and Find Full Text PDFGymnema saponin-induced lipid flip-flop identifies rigid membrane phenotype of methicillin resistant S. aureus and enhances it's antibiotic susceptibility.
Arch Biochem Biophys
January 2025
Department of Biotechnology, Maharaja Sriram Chandra Bhanjadeo University, (Erstwhile: North Orissa University), Baripada, Odisha 757003, India. Electronic address:
Our previous study revealed that lipid flip-flop inducing phytochemicals from Gymnema sylvestre increase membrane permeability of antimicrobials in S. aureus. However, their lipid flipping and membrane permeabilizing effect on methicillin resistant S.
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