大腸運動に関する研究 : III.AChに対する結腸括約部の反応

概要

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For the purpose of investigating the reactivity of sphincter coli as the pace maker of the movements of large intestine, we compared the reaction of sphincter coli to acetylcholine with that of aproximal colon. Using the intestine of rabbits the experiments were carried out after Magnus' method. The results obtained are summarized as follows. 1. By application of ACh both intestinal segments showed the increased motility in response to the concentration of the drug. 2. The lowest ones of concentrations, in which the rections of intestine were obviously recongnized, were 1 : 2×10^8 against sphincter coli and 1 : 2.6×10^8 against aproximal colon. Thus it seems that there is no marked difference between the lowest concentrations revealing the reaction. Also in higher concentration results similar to that in above-stated case were obtained.
鹿児島大学の論文
1953-12-25