Neurogastroenterology and motility · 2024
Laxative and purgative actions of phytoactive compounds from beetroot juice against loperamide-induced constipation, oxidative stress, and inflammation in rats.
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Ayari Ala, Dakhli Nouha, Jedidi Saber, Sammari Houcem, Arrari Fatma, Sebai Hichem
Аннотация
BACKGROUND: Chronic constipation is a gastrointestinal functional disorder which affects patient quality of life. Therefore, many studies were oriented to search herbal laxative agents. In this study, we investigated the phytochemical composition of beetroot juice (BJ) and its laxative potential in an experimental model of constipation and colonic dysmotility induced by loperamide (LOP) in Wistar rats.
METHODS: Animals were concurrently pretreated with LOP (3 mg/kg, b.w., i.p.) and BJ (5 and 10 mL/kg, b.w., p.o.), or yohimbine (2 mg/kg, b.w., i.p.), during 1 week. The laxative activity was determined based on the weight, frequency, and water content of the feces matter. The gastric-emptying test and intestinal transit were determined. Colon histology was examined, and oxidative status was evaluated using biochemical-colorimetric methods.
KEY RESULTS: The in vivo study revealed that LOP induced a significant inhibition of gastrointestinal motility, negative consequences on defecation parameters, oxidative stress, and colonic mucosa lesions. Conversely, administration of BJ reestablished these parameters and restored colonic oxidative balance. Importantly, BJ treatment protected against LOP-induced inflammatory markers (pro-inflammatory cytokines and WBC) and the increase in intracellular mediators such as hydrogen peroxide, free iron, and calcium levels.
CONCLUSIONS & INFERENCES: This study demonstrated that the bioactive compounds in BJ provided an anti-constipation effect by modulating intestinal motility and regulating oxidative stress and inflammation induced by LOP intoxication.
METHODS: Animals were concurrently pretreated with LOP (3 mg/kg, b.w., i.p.) and BJ (5 and 10 mL/kg, b.w., p.o.), or yohimbine (2 mg/kg, b.w., i.p.), during 1 week. The laxative activity was determined based on the weight, frequency, and water content of the feces matter. The gastric-emptying test and intestinal transit were determined. Colon histology was examined, and oxidative status was evaluated using biochemical-colorimetric methods.
KEY RESULTS: The in vivo study revealed that LOP induced a significant inhibition of gastrointestinal motility, negative consequences on defecation parameters, oxidative stress, and colonic mucosa lesions. Conversely, administration of BJ reestablished these parameters and restored colonic oxidative balance. Importantly, BJ treatment protected against LOP-induced inflammatory markers (pro-inflammatory cytokines and WBC) and the increase in intracellular mediators such as hydrogen peroxide, free iron, and calcium levels.
CONCLUSIONS & INFERENCES: This study demonstrated that the bioactive compounds in BJ provided an anti-constipation effect by modulating intestinal motility and regulating oxidative stress and inflammation induced by LOP intoxication.