Recent neuroendocrine facets of male reproductive aging

被引：14

作者：

Veldhuis, JD ^{[1
]}

机构：

[1] Univ Virginia, Sch Med, Gen Clin Res Ctr, Dept Internal Med,Div Endocrinol, Charlottesville, VA 22908 USA

来源：

EXPERIMENTAL GERONTOLOGY | 2000年 / 35卷 / 9-10期

关键词：

testis; pituitary; aging; male; gonadotropin; luteinizing hormone; hypogonadism;

D O I：

10.1016/S0531-5565(00)00123-6

中图分类号：

R592 [老年病学]; C [社会科学总论];

学科分类号：

03 ; 0303 ; 100203 ;

摘要：

We recently identified consistent attenuation of LH and testosterone secretory pulse amplitude and associated disruption of their orderly patterns of release in healthy older men. These dynamic changes emerge despite young-adult concentrations of LH and total testosterone. Moreover, we could document disruption of synchrony between LH secretion and oscillations in FSH, prolactin, sleep-stage and NPT (nocturnal penile tumescence), thus pointing to loss of coordinate neurohormone outflow. Such data suggest that CNS-hypothalamically based regulatory defects may be important in aging, as inferred indirectly in the old male rat and mouse more than 15 years ago. How such alterations are related to specific hypothalamic neurotransmitter changes in aging will be critical to unravel. (C) 2000 Elsevier Science Inc. All rights reserved.

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页码：1281 / 1308

页数：28

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