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Effect of Acetylcholine on the Microvibration of the Body Surface


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タイトル: Effect of Acetylcholine on the Microvibration of the Body Surface
著者: Ozaki, Toshiyuki
著者(別表記) : 尾崎, 俊行
発行日: 1971年 3月25日
引用: Acta medica Nagasakiensia. 1971, 15(1-4), p.1-2
抄録: In our previous studies,1)2) as to the microvibration (MV) of the body surface in the rabbit, OZAKI1) and FUZIWARA2) have reported that adrenaline and noradrenaline were capable of augmenting and inhibiting the MV according to small and large doses injected, respectively. It was suggested in their experiments that the inhibitory effect of adrenaline and noradrenaline on the MV might be attributed to the cardioinhibitory effect caused by injecting large doses of them. The present study, furthermore, aims to clarify the effect of acetylcholine on the MV of the body surface. Experiments were performed on rabbits nembutalized lightly, whose MVs were recorded at the same time as the electroencephalograms (EEGs), electrocardiograms (EKGs) and apexcardiograms (ACGs). With intravenous injection of acetylcholine into rabbits, the MV, EEG and ACG were observed to show the augmentative and inhibitory changes corresponding to (1-5 μg/kg) and large (30-50 μg/kg) doses of acetylcholine administered, respectively (Fig. 1, L and R). The augmentative effect of acetylcholine to the MV was, however, not prevented by moderate doses of atropine, but by adequate doses of tubocurarine. On the other hand, the inhibitory effect of acetylcholine was clearly abolished by moderate doses of atropine. From these experimental results, it seems likely that the augmentative effect of acetylcholine on the MV is due to the nicotine-like action of acetylcholine, while the inhibitory effect of acetylcholine the muscarine-like action of it.
URI: http://hdl.handle.net/10069/15559
ISSN: 00016055
資料タイプ: Departmental Bulletin Paper
原稿種類: publisher
出現コレクション:Volume 15, No. 1-4

引用URI : http://hdl.handle.net/10069/15559

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