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논문 기본 정보

자료유형
학술저널
저자정보
김동조 (세명대학교 한의과대학 내과학교실) 김호현 (세명대학교 한의과대학 생리학교실) 고흥 (세명대학교 한의과대학 내과학교실)
저널정보
대한동의생리학회 동의생리병리학회지 동의생리병리학회지 제22권 제1호
발행연도
2008.1
수록면
131 - 136 (6page)

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This study was undertaken to define the effect of Polygoni cuspidatae Radix on contracted rabbit common carotid artery and its mechanism. In order to investigate the effect of Polygoni cuspidatae Radix on rabbit's contracted vascular ring detached from common carotid artery, vascular ring with intact or damaged endothelium was used for the experiment using organ bath. To analyze the mechanism of Polygoni cuspidatae Radix-induced relaxation, Polygoni cuspidatae Radix extract was infused into contracted vascular ring which had been pretreated by $N{\omega}-nitro-L-arginine(L-NNA)$, Methylene blue(MB), and $Ca^{2+}$ was infused into contracted vascular ring induced by NE or KCl after treatment of Polygoni cuspidatae Radix extract in $Ca^{2+}-free$ solution. The results were as follows : Polygini cuspidatae Radix had an effective relaxation to the contracted vascular ring by NE in 0.1 mg/ml and 0.3 mg/ml level. Polygini cuspidatae Radix had an effective relaxation to the intact endothelium vascular ring, but when endothelium was removed, vascular ring did not relax. Polygini cuspidatae Radix-induced relaxation was inhibited by the pretreatment of L-NNA and MB. Pretreatment of Polygini cuspidatae Radix extract inhibit the contraction by influx of $extra-Ca^{2+}$ in contracted vascular ring induced by NE or KCl in $Ca^{2+}-free$ solution. As mentioned above, we suggest that Polygini cuspidatae Radix relaxes vascular ring through suppress influx of extra-cellular $Ca^{2+}$ by the action of nitric oxide from endothelium.

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