Abstract
Dai-Kenchu-To (DKT) is a herbal medicine and is currently used as the treatment of paralytic ileus in Japan. We investigated the mechanism of beneficial effects of DKT in vitro. DKT-extract powder (DKT-EP; 30-300 microg/ml) caused a significant inhibition on carbachol (CCH: 10(-6))-induced contraction in a concentration dependent manner of the rat distal colon. DKT-EP (100 microg/ml) consists of 20 microg/ml of Zanthoxylum Fruit, 30 microg/ml of Ginseng Root and 50 microg/ml of Ginger Rhizome. Although each of them had no effect on CCH-induced muscle contraction, the combination of three ingredients caused a significant inhibition on CCH-induced contraction.
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