Prevention of loperamide induced constipation in mice by KGM and the mechanisms of different gastrointestinal tract microbiota regulation

Q Zhang, D Zhong, R Sun, Y Zhang, RB Pegg… - Carbohydrate …, 2021 - Elsevier
Q Zhang, D Zhong, R Sun, Y Zhang, RB Pegg, G Zhong
Carbohydrate polymers, 2021Elsevier
Constipation is one of the most prevalent gastrointestinal tract diseases. Konjac
glucomannan (KGM) dietotherapy can effectively relieve the clinical symptoms of patients
with constipation. However, the causal relationship among KGM, constipation and different
gastrointestinal microbiome (ie, the stomach {St}, small intestine {S}, and large intestine {L})
remains poorly understood. In this study, constipated mice were treated with KGM (75, 150,
300 mg/kg bw). Results showed that KGM treatment improved the general physiological …
Abstract
Constipation is one of the most prevalent gastrointestinal tract diseases. Konjac glucomannan (KGM) dietotherapy can effectively relieve the clinical symptoms of patients with constipation. However, the causal relationship among KGM, constipation and different gastrointestinal microbiome (i.e., the stomach {St}, small intestine {S}, and large intestine {L}) remains poorly understood. In this study, constipated mice were treated with KGM (75, 150, 300 mg/kg bw). Results showed that KGM treatment improved the general physiological state, fecal character, small intestinal propulsive rate, gastric emptying rate, MTL and AchE activities, ET-1, 5-HT, and NO levels, and SCFA concentrations. KGM in the diets of constipated mice reduced the diversity of St and S microbiota, while increased those in the L. The KGM intervention regulated the microbiota profile, which afterwards was closer to the normal mouse group: confirmation was provided by different changes of bacteria like Lactobacillus, Bifidobacterium and Allobaculum spp et al.
Elsevier
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