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KMID : 0363320080290010189
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Journal of Korean Oriental Internal Medicine
2008 Volume.29 No. 1 p.189 ~ p.199
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Effect of Jichul-hwan on Gastric Motility in Conscious and Gastric Wall Injured Rats
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Lee Seung-Woo
Yoon Sang-Hyub
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Abstract
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Background & Objective : Jichul-hwan(JCH) has been used for the treatment of functional dyspepsia, regarded as a gastric dysmotility disease. We investigated the effects of JCH on gastric motility and its mechanisms of action in rats.
Methods : The gastric wall was injured by tracting a part of stomach body in rats. Gastric emptying was measured after administration of normal saline(NS) or JCH in normal rats and gastric wall injured rats. To evaluate the mechanism of JCH under delayed gastric emptying conditions, normal rats were treated with atropine sulfate(1mg/kg, s.c.), quinpirole HCl(0.3mg/kgg, i.p.), methyl ester, 75mg/kg s.c.) and cisplatin(10mg/kg, i.p.). The gastric slow waves were measured for 30 minutes before and after administration of each solution(NS, JCH).
Results : JCH 110.1mg/kg improved gastric emptying for 2 hrs(p=0.014). JCH 110.1mg/kg improved gastric emptying in the gastric wall injured rats(p=0.001). Under the delayed gastric emptying, JCH 110.1mg/kg improved gastric emptying in the group treated with atropine vs , p=0.003), but aggravated it with quinpirole vs , p=0.021). Administration JCH 110.1mg/kg increased EGG power in rats.
Conclusions : JCH stimulates gastric motility through the cholinergic pathway, so we expect that it would be effective in the treatment of dysmotility-like functional dyspepsia with low activity of vagus nerve.
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KEYWORD
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Jichul-hwan, Gastric motility, Gastric wall injury, Rat
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