1. Anti-Inflammatory and Intestinal Microbiota Modulation Properties of Jinxiang Garlic (Allium sativum L.) Polysaccharides toward Dextran Sodium Sulfate-Induced Colitis
- Author
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Xiaodan Hui, Chongzhen Sun, Chunbo Chen, Duo Han, Xin Tang, Heng Fang, Xiyang Wu, Xin Shao, Rong Qu, Yangwei Shan, Shan Liang, Xiaosa Zhang, Linhui Hu, and Huidan Zhang
- Subjects
0106 biological sciences ,biology ,medicine.drug_class ,Chemistry ,Ruminococcus ,010401 analytical chemistry ,Lachnospiraceae ,General Chemistry ,Pharmacology ,Gut flora ,biology.organism_classification ,medicine.disease ,01 natural sciences ,Anti-inflammatory ,0104 chemical sciences ,Proinflammatory cytokine ,medicine ,biology.protein ,Tumor necrosis factor alpha ,Colitis ,General Agricultural and Biological Sciences ,Interleukin 6 ,010606 plant biology & botany - Abstract
Garlic polysaccharides are great potential agents because of their anti-inflammation, antioxidation, and immunomodulation properties. However, few studies have reported their anti-inflammatory effects on improving the colon system and corresponding intestinal microbiota. Herein, a water-soluble garlic polysaccharide (WSGP) was extracted from Jinxiang garlic to evaluate its effects on ameliorating dextran sulfate sodium (DSS)-induced colitis in a mouse model. The results showed that (1) after administration of the WSGP (200 or 400 mg/kg/day), the feed intake, body weight, and colon length of colitic mice were increased, while the disease activity index and the histological score of colitic mice were decreased; (2) the WSGP reduced the colonic tissue damage and inhibited the expression of inflammatory factors (interleukin 6, interleukin 1 beta , and tumor necrosis factor alpha); and (3) the WSGP enhanced the production of short-chain fatty acids and improved the composition of intestinal microbiota. The key microorganisms, including Muribaculaceae, Lachnospiraceae, Lachnospiraceae_NK4A136_group, Mucispirillum, Helicobacter, Ruminococcus_1, and Ruminiclostridium_5, were identified to be associated with inflammatory bowel diseases. Taken together, this study proved that WSGP supplementation could alleviate DSS-induced colitis by improving mucosal barriers, blocking proinflammatory cytokines, and modulating gut microbiota.
- Published
- 2020
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