Article Publish Status: FREE
Abstract Title:

Laxative Effects of Phlorotannins Derived fromon Loperamide-Induced Constipation in SD Rats.

Abstract Source:

Molecules. 2021 Nov 28 ;26(23). Epub 2021 Nov 28. PMID: 34885790

Abstract Author(s):

Ji-Eun Kim, Yun-Ju Choi, Su-Jin Lee, Jeong-Eun Gong, You-Jung Jin, So-Hae Park, Hee-Seob Lee, Young-Whan Choi, Jin-Tae Hong, Dae-Youn Hwang

Article Affiliation:

Ji-Eun Kim


This study investigated the laxative effects of phlorotannins (Pt) derived from() on chronic constipation by evaluating alterations in stool parameters, gastrointestinal motility, histopathological structure, mucin secretion, gastrointestinal hormones, muscarinic cholinergic regulation, and fecal microbiota in SD rats with loperamide (Lop)-induced constipation subjected to Pt treatment. Stool-related parameters (including stool number, weight, and water contents), gastrointestinal motility, and length of intestine were significantly enhanced in the Lop+Pt-treated group as compared to the Lop+Vehicle-treated group. A similar recovery was detected in the histopathological and cytological structure of the mid-colon of Lop+Pt-treated rats, although the level of mucin secretion remained constant. Moreover, rats with Lop-induced constipation subjected to Pt treatment showed significant improvements in water channel expression, gastrointestinal hormone secretions, and expression of muscarinic acetylcholine receptors M2/M3 (mAChRs M2/M3) and their mediators of muscarinic cholinergic regulation. Furthermore, the Lop+Pt-treated group showed a significant recovery of,,, andfamilies in fecal microbiota. Taken together, these results provide the first evidence that exposure of SD rats with Lop-induced constipation to Pt improves the constipation phenotype through the regulation of membrane water channel expression, GI hormones, the mAChR signaling pathway, and fecal microbiota.

Study Type : Animal Study

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