Lack of an effect of age on the response to clonidine.
Lack of an effect of age on the response to clonidine.
复制标题
年龄对可乐定的反应缺乏影响。
DOI:
10.1038/clpt.1990.9
复制
发表时间:
1990
影响因子:
6.7
通讯作者:
Nies,AS
中科院分区:
文献类型:
--
作者:
Klein,CE;Gerber,JG;Nies,AS
The plasma concentration and appearance rate of norepinephrine are increased in the elderly. A hypothesis to explain this observation is that the elderly have a diminished response of the α2‐adrenoreceptor in the brainstem that modulates peripheral sympathetic tone. To evaluate the effect of age on α2‐adrenoreceptor function, we studied 12 healthy elderly subjects and 12 healthy young volunteers and compared the decrease in plasma norepinephrine and blood pressure in response to increasing doses of orally administered clonidine. We found that, for the same plasma clonidine concentration, the blood pressure and plasma norepinephrine concentration fell equivalently in both groups. These data imply that the increased plasma norepinephrine and the elevated blood pressure in the healthy elderly population do not appear to be secondary to a decrease in α2‐adrenergic response to an agonist in the central nervous system.Clinical Pharmacology and Therapeutics(1990)47,61–67; doi:10.1038/clpt.1990.9
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DOI:
10.1016/s0065-2318(08)60433-3
发表时间:
1970
影响因子:
--
作者:
R. Marshall;A. Neuberger
通讯作者:
A. Neuberger
影响因子:
3.9
作者:
Yuki Oshiro;E. Eylar
通讯作者:
E. Eylar
影响因子:
6.4
作者:
E. Skamene;P. Kongshavn;D. Sachs
通讯作者:
D. Sachs
DOI:
10.1139/o72-141
发表时间:
1972
期刊:
Canadian journal of biochemistry
影响因子:
--
作者:
R. L. Hudgin;H. Schachter
通讯作者:
H. Schachter
影响因子:
64.8
作者:
E. F. Zimmerman;M. Voorting;J. G. Michael
通讯作者:
J. G. Michael