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Select microbial metabolites in the small intestinal lumen regulates vagal activity via receptor-mediated signaling.
iScience
February 2025
Department of Integrative Biology & Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA.
The vagus nerve is proposed to enable communication between the gut microbiome and the brain, but activity-based evidence is lacking. We find that mice reared germ-free exhibit decreased vagal tone relative to colonized controls, which is reversed via microbiota restoration. Perfusing antibiotics into the small intestines of conventional mice, but not germ-free mice, acutely decreases vagal activity which is restored upon re-perfusion with intestinal filtrates from conventional, but not germ-free, mice.
View Article and Find Full Text PDFEffects of Algal-Derived -Glucan on the Growth Performance, Intestinal Health, and Resistance of Ricefield Eel ().
Aquac Nutr
January 2025
College of Animal Science and Technology, Yangtze University, Jingzhou 434023, China.
Ricefield eel is an important economic fish in China. However, large-scale intensive breeding has increased the incidence of diseases in eels. In this study, we conducted an 8-week feeding trial to investigate the effects of -glucan on the growth performance, intestinal health, and resistance of ().
View Article and Find Full Text PDFPolydatin protects against DSS-induced ulcerative colitis via Nrf2/Slc7a11/Gpx4-dependent inhibition of ferroptosis signalling activation.
Front Pharmacol
January 2025
Department of Gastroenterology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.
Introduction: Ulcerative colitis (UC), a form of inflammatory irritable bowel disease, is characterized by a recurrent and persistent nonspecific inflammatory response. Polydatin (PD), a natural stilbenoid polyphenol with potent properties, exhibits unexpected beneficial effects beyond its well-documented anti-inflammatory and antioxidant activities. In this study, we presented evidence that PD confers protection against dextran sodium sulfate (DSS)-induced ulcerative colitis.
View Article and Find Full Text PDFPhysalis Calyx seu Fructus relieves chicken intestinal damage to heat via improving the antioxidant ability.
Front Immunol
January 2025
Poultry Institute, Shandong Academy of Agricultural Science, Jinan, Shandong, China.
Heat-stress-induced oxidative and inflammatory responses were important factors contributing to chicken intestinal damage. The purpose of this study was based on the antioxidant and anti-inflammatory activities of Physalis Calyx seu Fructus (Jin Deng Long, JDL) to investigate its efficacy and mechanism in relieving chicken heat stress damage. Primary chicken embryo duodenum cells and 90 30-day-old specific-pathogen-free chicken were randomly divided into control and JDL groups to establish heat stress models and .
View Article and Find Full Text PDFVitamin B6 Alleviates Aflatoxin B1-Induced Impairment of Testis Development by Activating the PI3K/Akt Signaling Pathway.
J Agric Food Chem
January 2025
College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266100, China.
Aflatoxin B1 (AFB1) is a harmful environmental contaminant known to disrupt gut microbiota and cause health problems. In recent years, the role of vitamin B6 (VB6) in maintaining intestinal and reproductive health has attracted much attention. AFB1 has been found to damage the intestinal barrier and cause inflammation by disrupting the intestinal microbiota, particularly by increasing the abundance of .
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