Sexual dimorphism of blood pressure in spontaneously hypertensive ratseffects of anti‐androgen treatment
作者:
Ursula Ganten,
Gertrud Schröder,
Monika Witt,
Frank Zimmermann,
Detlev Ganten,
Günter Stock,
期刊:
Journal of Hypertension
(OVID Available online 1989)
卷期:
Volume 7,
issue 9
页码: 721-726
ISSN:0263-6352
年代: 1989
出版商: OVID
关键词: Hypertension;spontaneously hypertensive rats;sexual dimorphism;flutamide;cyproterone acetate;testosterone
数据来源: OVID
摘要:
The mechanisms resulting in the greater predisposition of male subjects towards hypertension were investigated in different strains of rats with genetic hypertension [spontaneously hypertensive rats of the stroke-prone strain (SHRSP) and spontaneously hypertensive rats (SHR)] and their respective normotensive controls. Blood pressure was reduced in young (9 weeks of age) hypertensive rats by (1) surgical castration, (2) treatment with the testosterone receptor antagonist cyproterone acetate (CPA), which does not elevate testosterone, or (3) with the testosterone receptor antagonist flutamide, which leads to a feedback elevation of gonadotrophic hormones and plasma testosterone. These treatments had no effect on high blood pressure in old hypertensive rats aged 25 weeks. Both androgen receptor antagonists attenuated high blood pressure development when given for the first 10 days after birth. These data clearly relate the sexual dimorphism of hypertension to testosterone produced during male brain maturation in the early phase of hypertension development. Testosterone appears not to contribute directly to the maintenance of high blood pressure in established hypertension.
点击下载:
PDF
(861KB)
返 回