1. Walnut green husk polysaccharides prevent obesity, chronic inflammatory responses, nonalcoholic fatty liver disease and colonic tissue damage in high-fat diet fed rats
- Author
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Jing Wang, Luoluo Feng, Yani Zhang, Runguang Zhang, Diying Zhong, Youlin Zhang, Xiaoyue Yang, and Guoliang Wang
- Subjects
Male ,medicine.medical_specialty ,Colon ,Juglans ,Inflammation ,02 engineering and technology ,Gut flora ,Diet, High-Fat ,medicine.disease_cause ,Biochemistry ,Inflammatory bowel disease ,Antioxidants ,Rats, Sprague-Dawley ,03 medical and health sciences ,Non-alcoholic Fatty Liver Disease ,Polysaccharides ,Structural Biology ,Internal medicine ,Nonalcoholic fatty liver disease ,medicine ,Animals ,Obesity ,Molecular Biology ,030304 developmental biology ,0303 health sciences ,Intestinal permeability ,biology ,business.industry ,General Medicine ,Fatty Acids, Volatile ,021001 nanoscience & nanotechnology ,medicine.disease ,biology.organism_classification ,Gastrointestinal Microbiome ,Rats ,Endocrinology ,Adipose Tissue ,Liver ,Anti-Obesity Agents ,medicine.symptom ,0210 nano-technology ,business ,Dysbiosis ,Thermogenesis ,Oxidative stress - Abstract
High-fat (HF) diets cause obesity, gut microbial dysbiosis and associated disorders and inflammatory bowel disease (IBD) due to increased intestinal permeability, which is an important reason for chronic inflammation and oxidative stress. This study was to investigate the effects and mechanism by which walnut green husk polysaccharides (WGHP) prevents obesity, oxidative stress, inflammation, liver and colon damage in HF diet induced rats. We found that WGHP alleviated HF-induced abnormal weight gain, disordered lipid metabolism, inflammation, oxidative stress, colonic tissue injury and up-regulate the expression level of colonic tight junction protein in the rats. Besides, the administration of WGHP promoted browning of iWAT and thermogenesis in BAT of HF-fed rats, and improved gut microbiota dysbiosis by increasing the bacterial diversity and reducing the relative abundance of potential pathogenic bacteria in the colon of the rats. Furthermore, WGHP consumption not only increased the SCFAs content but also improved the relative abundance of Prevotellaceae and Allobaculum in the gut of rats. Our results suggest that the protective effect of WGHP on metabolic inflammation caused by HF may be due to the regulation of gut microbiota and SCFAs. more...
- Published
- 2021
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