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豚鼠主动脉前庭自发性慢反应电位去极离子流的初步分析

邱丽颖, 陈彦静, 葛赋贵, 王德宝

张家口医学院生理教研室.河北,张家口 075029

摘要

应用常规的玻璃微电极细胞内记录技术,用离子通道阻断剂,初步分析了主动脉前庭部位慢反应自律细胞0相和4相的去极离子流。

An analysis of ionic flow of spontaneous slow action potential of guinea pig aortic vestibule

Qiu Liying, Chen Yanjing, Ge Fugui, Wang Debao

Department of Physiology,Zhangjiakou Medical College.Zhangjiakou 075029,Hebei

Abstract

Spontaneous slow action potentials of aortic vestibule of isolated guinea pig heart were intracellularlly recorded. Electrophysiological parameters examined are: maximal diastolic potential (MDP), amplitude of action potential (APA), maximal rate of depolarization of phase 0 (V_(max)), velocity of diastolic depolarization of phase 4 (VDD), duration of 50% and 90% repolarization (APD_(50) and APD_(90)) and rate of pacemaker firing (RPF).

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引用本文：

邱丽颖, 陈彦静, 葛赋贵, 王德宝. 豚鼠主动脉前庭自发性慢反应电位去极离子流的初步分析[J]. 生理学报 2000; 52 (4): .

Qiu Liying, Chen Yanjing, Ge Fugui, Wang Debao. An analysis of ionic flow of spontaneous slow action potential of guinea pig aortic vestibule. Acta Physiol Sin 2000; 52 (4): (in Chinese with English abstract).