自律细胞

目的：采用乙酰胆碱（ACh）和阿托品对豚鼠左心室流出道慢反应自律细胞电活动的影响来间接反映迷走神经对左心室流出道自律细胞的支配和胆碱能受体的分布。

Objective : To investigate the innervation of parasympathetic nervous system and the distribution of muscarinic receptor ( M-R ) on pacemaker cell membrane in guinea-pig left ventricular outflow tract ( aortic vestibule ) .

进一步观察发现，在主动脉瓣右瓣与后瓣交界以下的局部区域，可记录到有明显4相自动去极化的慢反应自律细胞样的动作电位，并可被钙通道阻滞剂Mn2＋、硝苯吡啶阻断。

Of these preparations , they were all found a very small region below the right and the poster valves , the response showed a slow and low rising phase and a marked spontaneous depolarization in phase 4 . The response could be blocked by Mn2 + and nifedipine .

一种分离大鼠窦房结自律细胞的简单方法

A simple method of isolation and identification of P cells in rat sinoatrial node

普罗帕酮对豚鼠左心室流出道慢反应自律细胞的电生理效应

The Electrophysiology Effect of Propafenone on Spontaneous Slow-Response Cell of Rats ' Left Ventricular Outflow Tract

Na~+、Ca~（++）与房室结自律细胞动作电位升支的形成

Effects of Na and Ca on the Rising Phase of the Spontaneous Action Potential of Rabbit AV Node Cells

结论过渡细胞属慢反应自律细胞，传导速度比普通房肌慢。

Conclusion The transitional cell may be a kind of slow-reaction cell with automatism frequency . It has a low conduction velocity .

用含胶原酶、弹性蛋白酶的无钙溶液和改良的回复式液体运动来酶解和机械分离兔心窦房结自律细胞。

Sinus node cells were isolated from rabbit heart by both enzymatic digestion in Ca free medium containing collagenase and elastase and an improved mechanical trituration method .

结论：1Ca2+流为兔左心室流出道自律细胞0期去极主要离子流，并有少量Na+内流参与；

Conclusion : ① Generation of 0 phase of depolarization of slow-response activity in the left ventricular tract is contributed mainly by Na + current in addition to Ca 2 + ;

目的：为进一步阐明Ca2+通道在心脏起搏中所起的作用，及左心室流出道（主动脉前庭）自律细胞的特性。

Objective : The purpose of this study was to determine the function of the calcium current channal to the pacemaker cells of the heart and electrophysiological characters of the left ventricular outflow tract .

T型钙通道被认为在心脏自律性、细胞生长和心血管重塑中起关键性的作用，一直是研究的热点。

T-type Ca 2 + channels have been suggested to play a role in cardiac automaticity , cell growth , and cardiovascular remodeling .