Basis for the cardiac-related rhythm in muscle sympathetic nerve activity of humans.
Basis for the cardiac-related rhythm in muscle sympathetic nerve activity of humans.
复制标题
人类肌肉交感神经活动中与心脏相关的节律的基础。
DOI:
10.1152/ajpheart.00602.2002
复制
发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Gebber,GerardL
中科院分区:
文献类型:
--
作者:
Barman,SusanM;Fadel,PaulJ;Vongpatanasin,Wanpen;Victor,RonaldG;Gebber,GerardL
We tested the hypothesis that the cardiac-related rhythm in muscle sympathetic nerve activity (MSNA) of humans reflects entrainment of a central oscillator by pulse-synchronous baroreceptor nerve activity. Partial autospectral analysis was used to mathematically remove the portion of cardiac-related power in MSNA autospectra that was attributable to its linear relationship to the ECG. In 54 of 98 cases, ≥15% of cardiac-related power remained after partialization with the ECG; peak residual cardiac-related power was often at a frequency different than heart rate. When assessed on a cardiac-related burst-by-burst basis, there was a progressive and cyclic change in the ECG-MSNA interval (delay from R wave to peak of cardiac-related burst) on the time scale of respiration in four subjects. In these subjects, as well as in some in which the interval appeared to change randomly, there was an inverse relationship between the ECG-MSNA interval and cardiac-related burst amplitude. However, in 45% of the cases, these parameters were not related. These results support the view that the cardiac-related rhythm in MSNA reflects forcing of a nonlinear oscillator rather than periodic inhibition of unstructured, random activity.
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DOI:
--
发表时间:
1994
期刊:
Journal of the Autonomic Nervous System
影响因子:
--
作者:
A. Hedman;K. Matsukawa;I. Ninomiya
通讯作者:
I. Ninomiya
影响因子:
--
作者:
G. L. Gebber
通讯作者:
G. L. Gebber
DOI:
10.1152/ajpheart.00899.2001
发表时间:
2002-05-01
影响因子:
4.8
作者:
Cui, J;Wilson, TE;Crandall, CG
通讯作者:
Crandall, CG
影响因子:
5.5
作者:
KREGEL, KC;SEALS, DR;CALLISTER, R
通讯作者:
CALLISTER, R
DOI:
--
发表时间:
1999
期刊:
Journal of Physiology
影响因子:
--
作者:
A. Xie;J. Skatrud;D. Puleo;B. Morgan
通讯作者:
B. Morgan