POWER SPECTRAL-ANALYSIS OF THE BAROREFLEX IN NEONATAL SWINE

被引：6
|
作者：
COHEN, HL [1 ]
GOOTMAN, PM [1 ]
HUNDLEY, BW [1 ]
CONDEMI, G [1 ]
EBERLE, LP [1 ]
机构：
[1] SUNY HLTH SCI CTR,DEPT PHYSIOL,BROOKLYN,NY 11203
来源：
BRAIN RESEARCH | 1991年 / 558卷 / 01期
关键词：
BAROREFLEX; DEVELOPMENT; SYMPATHETIC ACTIVITY; POWER SPECTRUM; CARDIOVASCULAR;
D O I：
10.1016/0006-8993(91)90729-F
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
The baroreflex was observed in neonatal swine as young as 4 h of age. Bolus injections of Na nitroprusside (NP) and phenylephrine (PE), induced changes in blood pressure and elicited changes in both heart rate and in cervical sympathetic and splanchnic discharge; changes in sympathetic discharge were reflected in altered power spectral magnitude. Measures of heart rate showed that the magnitude of the PE-induced decreases was positively correlated with increasing postnatal age. The results indicate that the baroreflex, as indicated by changes in sympathetic discharge and heart rate, is present in early neonatal swine.
引用
收藏
页码：131 / 135
页数：5
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