Adaptation to periodic high-altitude hypoxia inhibits baroreflex vagal bradycardia in rats

被引：0

作者：

M. N. Obrezchikova

O. S. Tarasova

A. S. Borovik

V. B. Koshelev

机构：

[1] M. V. Lomonosov Moscow State University,Department of Human and Animal Physiology, Biological Faculty

来源：

Bulletin of Experimental Biology and Medicine | 2000年 / 129卷

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摘要：

A 3-week course of adaptation to high-altitude hypoxia (4500 m above sea level) inhibited baroreflex avagal bradycardia induced by a rapid rise of systemic blood pressure in conscious rats. Bradycardic responses to electrical stimulation of peripheral end of the right vagus nerve and methacholine (M2 muscarinic receptor agonist) in hypoxia-adapted rats did not differ from the control. It is concluded that hypoxia inhibits baroreflex vagal bradycardia by acting on a central element of the baroreceptor reflex arch

引用

页码：327 / 329

页数：2

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