Abstract Title:

Newer Insights into the Antidiarrheal Effects of Acacia catechu Willd. Extract in Guinea Pig.

Abstract Source:

J Med Food. 2017 Jun ;20(6):592-600. Epub 2017 Apr 19. PMID: 28422543

Abstract Author(s):

Matteo Micucci, Roberto Gotti, Ivan Corazza, Gabriella Tocci, Alberto Chiarini, Marta De Giorgio, Luca Camarda, Maria Frosini, Carla Marzetti, Monica Cevenini, Roberta Budriesi

Article Affiliation:

Matteo Micucci


Acacia catechu Willd. is a plant diffused in India and other Asian countries, where it is used as a traditional medicine for the treatment of several ailments including diarrhea, one of the most common pathologies worldwide. In this study, we determined the chemical composition of Acacia catechu Willd. extract (AC) and evaluated its effect on spontaneous and induced contractility in isolated guinea pig ileum and proximal colon. Preliminary data about its antimicrobial effect against some pathogen agents versus some microbiota intestinal strain have been also reported. Chemical analysis revealed the presence of catechins, such as (-)-Epicatechin and (+)-Catechin. AC extract reduced frequency and amplitude of colon smooth muscle spontaneous contractility, in a concentration-dependent manner. A weaker effect of the extract was exerted toward ileum smooth muscle spontaneous contractility. The observed calcium antagonistic effect was more potent in proximal colon than in ileum. The extract showed a noncompetitive reversible antagonism to carbachol, both in proximal colon and ileum, with a higher potency in proximal colon. The antimicrobial effects of AC extract were observed toward Campylobacter jejuni, Escherichia coli, and Salmonella spp., while Bifido and Lactobacillus were not affected by treatment. These effects, however, occurred at concentrations fivefold higher than those inhibiting ileum and colon contractility. In conclusion, our results suggest that AC affects intestinal contractility without affecting intestinal bacterial flora and this may result in clinical benefits in patients suffering from nonbacterial diarrhea.

Study Type : In Vitro Study

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