Testosterone and secondary hypertension: new pieces to the puzzle.

Testosterone and secondary hypertension: new pieces to the puzzle.
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睾酮和继发性高血压:新的难题。

DOI:
10.1161/hypertensionaha.112.195149
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发表时间:
2012
期刊:
Hypertension (Dallas, Tex. : 1979)
影响因子:
--
通讯作者:
Meyer,MatthiasR
Meyer,MatthiasR
中科院分区:
--
文献类型:
--
作者:
Barton,Matthias;Prossnitz,EricR;Meyer,MatthiasR

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男性或女性绝经后缺乏雌激素与心血管风险增加独立相关。许多因素被认为是潜在的原因,包括细胞-器官水平的影响(如炎症激活、氧化应激增加和血管收缩增加),以及心血管生理学的变化(如交感神经激活、血压升高和胰岛素抵抗)。所有这些参数对性类固醇激素的调节都很敏感,尤其是17ß-雌二醇、睾酮及其更活跃的代谢物5α-二氢睾酮,它是由睾酮通过5α-还原酶产生的。睾酮是男性主要的性类固醇激素,但也由女性产生。2睾酮在包括血管和脂肪组织在内的许多组织中通过芳香化酶转化为17ß-雌二醇,这是雌激素的重要局部来源。在肥胖中,芳香酶衍生的17ß-雌二醇形成可能是男性女性化和肥胖女性雌激素敏感性癌症风险增加的重要原因。3
The absence of estrogen, in males or after menopause in women, is independently associated with increased cardiovascular risk. 1 A number of factors have been implicated as the underlying cause, including effects at the cell-organ level (eg, inflammatory activation, increased oxidative stress, and increased vasoconstriction), 1 as well as changes in cardiovascular physiology (eg, sympathetic activation, increased blood pressure, and insulin resistance). All of these parameters are sensitive to modulation by sex steroid hormones, 1 particularly 17ß-estradiol, testosterone, and its more active metabolite, 5α-dihydrotestosterone, which is produced from testosterone by 5α-reductase. 1, 2 Testosterone is the main male sex steroid hormone but is also produced by women. 2 Testosterone is converted to 17ß-estradiol by aromatase in numerous tissues, including the vasculature and adipose tissue, representing an important local source of estrogen. 3 In obesity, aromatase-derived 17ß-estradiol formation may represent an important cause of feminization in males and the increased risk of estrogensensitive cancers in obese females. 3
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睾酮和血压:钠排泄减少是缺失的环节吗?
DOI: 10.1161/hypertensionaha.112.192351
发表时间: 2012
期刊: Hypertension (Dallas, Tex. : 1979)
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