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KMID : 0665220150280060956
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Korean Journal of Food and Nutrition
2015 Volume.28 No. 6 p.956 ~ p.964
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Effect of Lactic Acid Bacteria Powder on Loperamide-induced Constipation in Rat
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Kim Eun-Young
Jo Kyung-Ae
Ahn So-Hyun
Park Sung-Sun
Son Heung-Soo
Han Sung-Hee
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Abstract
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Probiotics is known improve the microenvironment of colon; however, the metagenomic DNA study of its lactic acid bacteria in constipation induced by loperamide is not clearly understood. In the present study, we investigated the reduction of the lactic acid bacteria in case of constipation, in normal and loperamide-induced rat. Lactic acid powder (lactic acid bacteria 19) was prepared from Chong Kun Dang Pharmaceutical Corporation. After 2 weeks of oral administration, the group treated with the higher concentration of lactic acid bacteria (109 CFU/mL per kg of body weight) following loperamide treatment was the most effective in increasing number, weight, and water content of feces. A similar but significant increase was found in the group treated with lower concentration of lactic acid bacteria (107 CFU/mL per kg of body weight) after loperamide treatment. The concentrations of acetic acid and propionic acid in feces in the loperamide-induced rat with high concentration lactic acid, were significantly higher than that of others. Furthermore, gastrointestinal transit ratio as well as the length and area of intestinal mucosa were significantly increased after treatment with lactic acid bacteria in loperamideinduced rat. Metagenomics DNA analysis indicated that the microorganism homology in cecum was similar between the groups of normal (NOR) and HIG. Our results show that lactic acid bacteria were effective in improving the constipation.
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KEYWORD
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lactic acid bacteria, constipation, loperamide, gastrointestinal transit, H&E staining, metagenomic DNA
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