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Effects of Lentinus edodes Extract on the Loperamide-induced Constipation in Rats  

Jin, Young-Gun (Department of Veterinary Medicine, Cheju National University)
Kim, Dong-Gun (Department of Veterinary Medicine, Cheju National University)
Jin, Ju-Yeon (Department of Veterinary Medicine, Cheju National University)
Lee, Young-Jae (Department of Veterinary Medicine, Cheju National University)
Park, Min-Kyung (Department of Human Nutrition and Food Science, Chungwoon University)
Publication Information
Korean Journal of Food Science and Technology / v.39, no.1, 2007 , pp. 88-93 More about this Journal
Abstract
The preventive effect of Lentinus edodes extract (LE) against constipation was studied in rats. Rats were pretreated with LE contained in drinking water at the concentration of 10%, 20% and 40% over 30 days. Constipation was induced by subcutaneous injection of loperamide (4 mg/kg/day) 3 days prior to sacrifice. Treatment of loperamide resulted in decreases in the number and wet weight of fecal pellets, and increase in the number of fecal pellet in the distal colon and cecocolon weight. In contrast, the number and wet weight of fecal pellets were increased, and the number of fecal pellet in the distal colon and the cecocolon weight were decreased in LE-pretreated groups compared to the loperamide-treated group. Blood parameters such as white blood cell, red blood cell, hemoglobin, hematocrit, platelet, mean corpuscular volume, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration, and serum alanine transaminase, aspartate aminotransferase and alkaline phosphatase activities, and blood urea nitrogen and creatinine values were not significantly different between the groups. In addition, LE (0.5 mg/mL) increased spontaneous contractile activity, which was reduced by atropine or loperamide in isolated rat ileum. Theses results suggest that the improvement of constipation symptoms in LE-pretreated rats resulted from a stimulatory effect of LE on intestine contractile activity.
Keywords
Lentinus edodes extract; constipation; loperamide; atropine;
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Times Cited By KSCI : 8  (Citation Analysis)
Times Cited By SCOPUS : 1
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