期刊简介
本杂志是心血管学领域新兴学科的专业性学术期刊，在国内心血管心律失常方面具有重大影响和享有较高的学术权威。面向广大的医务人员，特别是心血管专业的医务工作者，介绍心脏起搏、心电生理、心律失常学科的国内外重要进展，以及新的诊疗技术、防治经验等。多次荣获国家及湖北省优秀期刊，影响因子排序在同类期刊中名列前茅。
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首页>中国心脏起搏与心电生理杂志
- 杂志名称：中国心脏起搏与心电生理杂志
- 主管单位：中国科学技术协会
- 主办单位：中国生物医学工程学会 武汉大学人民医院
- 国际刊号：1007-2659
- 国内刊号：42-1421/R
- 出版周期：
期刊荣誉：1997年获第二届全国优秀科技期刊期刊收录：
蒋彬；杨向军；惠杰；蒋廷波；宋建平；刘志华
关键词：ventricular myocytes, autonomic nervous system, muscarinic agonist, cardiac function, adenylyl cyclase, nitric oxide, heart rate
摘要：Objective The autonomic nervous system plays a key role in regulating cardiac function by modifying heart rate, contractility and impulse. The parasympathetic neurotransmitter acetyl-choline and muscarinic agonist carbachol (Cch) inhibit excitation-contraction coupling in cardiac ventricular myocytes. Muscarinic agonists suppress adenylyl cyclase (AC) acitivity and,by reducing activation of the cAMP/protein kinase A (PKA)cascade, inhibit the L-type Ca2+ current (ICa(L) ). They also increase the content of cGMP by stimulating guanylyl cyclase (GC) activity. The role of nitric oxide (NO)/cGMP in muscarinic inhibition has undergone considerable scrutiny. The role of the NO/cGMP pathway in the inhibition of ICa(L) by Cch was examined in guinea-pig ventricular myocytes.
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