INVOLVEMENT OF THE BARORECEPTOR REFLEXES IN THE CHANGES IN BLOOD-PRESSURE WITH SLEEP AND MENTAL AROUSAL
INVOLVEMENT OF THE BARORECEPTOR REFLEXES IN THE CHANGES IN BLOOD-PRESSURE WITH SLEEP AND MENTAL AROUSAL
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DOI：
10.1161/01.hyp.5.5.746
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发表时间：
1983-01-01
期刊：
影响因子：
8.3
通讯作者：
SLEIGHT, P
中科院分区：
文献类型：
--
作者：
CONWAY, J;BOON, N;SLEIGHT, P
测定了13名受试者在睡眠和清醒后3个阶段的压力感受性反射敏感性和血压。压力感受性反射敏感性是通过将脉搏间期的增加与静脉注射产生的收缩压的增加相关联来测量的。注射80微克苯肾上腺素。血压直接从臂动脉测量。睡眠时血压下降，压力反射敏感性增加；随着心理唤醒程度的增加，血压升高，压力反射敏感性降低。压力感受性反射活动可能参与白天和夜间血压的中期调节，此外，它在缓冲血压急性变化方面也有公认的作用。
Baroreflex sensitivity and blood pressure was measured in 13 [human] subjects during sleep and 3 stages of progressive mental arousal after waking. Baroreflex sensitivity was measured by correlating the increase in pulse interval with the increase in systolic pressure produced by an i.v. injection of 80 .mu.g of phenylephrine. Blood pressure was measured directly from the brachial artery. During sleep, blood pressure fell and baroreflex sensitivity increased; with increasing mental arousal, blood pressure rose and baroreflex sensitivity decreased. Baroreflex activity may be involved in the medium-term regulation of blood pressure during the day and night in addition to its recognized role in buffering acute changes in blood pressure.