Yohimbine increases cerebrospinal fluid and plasma norepinephrine but not arginine vasopressin in humans.

Yohimbine increases cerebrospinal fluid and plasma norepinephrine but not arginine vasopressin in humans.
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育亨宾会增加人的脑脊液和血浆去甲肾上腺素,但不会增加精氨酸加压素。

DOI:
10.1159/000125235
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发表时间:
1989
期刊:
影响因子:
4.1
通讯作者:
Raskind,MA
Raskind,MA
中科院分区:
医学2区
文献类型:
--
作者:
Peskind,ER;Veith,RC;Dorsa,DM;Gumbrecht,G;Raskind,MA

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先前的研究已经证实α2抑制性调节中枢神经系统(CNS)的去甲肾上腺素能和精氨酸加压素能系统。本文通过测定7例正常青年男性受试者脑脊液(CSF)中去甲肾上腺素(NE)和精氨酸加压素(AVP)对α_2受体拮抗剂育亨宾(Yohimbine)的反应,验证了α_2受体抑制CNS去甲肾上腺素和加压素系统的本质是紧张性的假说。我们还通过测量血浆NE和血浆AVP对育亨宾的反应,评价了α2-抑制交感神经系统(SNS)和AVP释放到血浆中的紧张性。与安慰剂相比,育亨宾治疗后CSF NE显著升高。相比之下,育亨宾和安慰剂条件下的CSF AVP没有差异。同样,与安慰剂相比,育亨宾治疗后血浆NE显著升高,而血浆AVP无变化。这些结果支持CNS去甲肾上腺素能系统和交感神经流出的紧张性α2抑制调节机制。这种紧张性α2抑制不能用于调节人类CSF或血浆中的AVP水平。
Previous studies have demonstrated α2-inhibitory regulation of central nervous system (CNS) noradrenergic and arginine vasopressinergic systems. We tested the hypothesis that α2-inhibition of CNS noradrenergic and vasopressinergic systems is tonic in nature by measuring the response of cerebrospinal fluid (CSF) norepinephrine (NE) and arginine vasopressin (AVP) to the α2antagonist yohimbine in 7 young normal male human subjects. We also evaluated the tonic nature of α2-inhibition of the sympathetic nervous system (SNS) and of AVP release into plasma by measuring the response of plasma NE and plasma AVP to yohimbine. CSF NE was significantly higher following yohimbine as compared to placebo. In contrast CSF AVP did not differ between yohimbine and placebo conditions. Similarly, plasma NE was significantly higher following yohimbine as compared to placebo, while plasma AVP was unchanged. These results support a tonic α2-inhibitory regulatory mechanism for both CNS noradrenergic systems and sympathetic outflow. Such tonic α2-inhibition could not be demonstrated for regulation of AVP levels in CSF or plasma in humans.
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