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JCEM:雌激素治疗增加骨骼钙摄取和尿磷排泄

2013-10-23 佚名 丁香园

雌激素治疗与较低的血钙和血磷浓度有关,并且已知雌激素治疗可以增加骨矿密度(BMD)。其他矿物质代谢的生物指标可以帮助理解这些作用的生物学基础。为了探讨雌激素治疗对绝经后女性钙、磷和其他调节激素的影响,来自美国华盛顿大学Nisha Bansal教授及其团队进行了一项研究,该研究发现雌激素治疗可增加骨骼钙摄取和尿磷排泄,且与较高的腰椎BMD密切相关。该研究结果在线发表在2013

雌激素治疗与较低的血钙和血磷浓度有关,并且已知雌激素治疗可以增加骨矿密度(BMD)。其他矿物质代谢的生物指标可以帮助理解这些作用的生物学基础。为了探讨雌激素治疗对绝经后女性钙、磷和其他调节激素的影响,来自美国华盛顿大学Nisha Bansal教授及其团队进行了一项研究,该研究发现雌激素治疗可增加骨骼钙摄取和尿磷排泄,且与较高的腰椎BMD密切相关。该研究结果在线发表在2013年10月3日The Journal of Clinical Endocrinology & Metabolism杂志上。【原文下载

该研究在动脉粥样硬化多种族研究中研究2767例绝经后女性,其中862例(31%)使用雌激素。测量血清钙、磷、25–羟维生素D、24、25–二羟维生素D和成纤维细胞生长因子–23浓度,以及尿钙排泄分数(FEca)和尿磷排泄分数(FEphos)。检查雌激素治疗与每个生物指标的关系。另外,在一个由810例女性组成的亚组中,检测校正这些生物指标是否能减弱雌激素治疗与腰椎BMD(用腹部CT测量)的相关性。

该研究结果表明,在校正模型中,使用雌激素治疗的女性年龄较小,有较低平均血钙水平和较低的FEca.雌激素治疗女性的平均血磷水平较低,而FEphos较高。平均25–羟维生素D和24、25–二羟维生素D在使用雌激素治疗女性中较高。使用雌激素与否,平均PTH和成纤维细胞生长因子–23没有显著差异。使用雌激素治疗与较高的腰椎BMD密切相关,然而,矿物质代谢测量没能使这种相关性有明显的改变。

该研究发现,在绝经后女性的多种族队列中,使用雌激素治疗与较低的血钙、较低的FEca、较低的血磷和较高的FEphos有关,提示这些相关性可归因于骨骼钙摄取增加和尿磷排泄增加。同时,使用雌激素治疗与较高浓度的维生素D代谢产物有关。这些矿物质代谢测量中雌激素治疗相关差异没能明显减弱使用雌激素治疗与腰椎BMD之间密切的相关性。

原文出处

Bansal N, Katz R, de Boer IH, Kestenbaum B, Siscovick DS, Hoofnagle AN, Tracy R, Laughlin GA, Criqui MH, Budoff MJ, Li D, Ix JH.Influence of Estrogen Therapy on Calcium, Phosphorus, and Other Regulatory Hormones in Postmenopausal Women: The MESA Study.J Clin Endocrinol Metab. 2013 Oct 3【原文下载

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    2013-12-21 achengzhao
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    2014-06-26 smallant2015
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    2014-04-29 维他命
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雌激素有助抵御尿路感染

一项新研究称,在绝经后妇女中,雌激素可帮助保护其尿路免受感染。这些发现有助解释为什么雌激素补充剂可在绝经后妇女中抵御感染复发。 有多达60%的妇女至少会发生一次尿路感染,有25%的妇女有过反复的尿路感染。 Petra Lthje及其同事发现,雌激素可增加身体自制的被称作抗菌肽的抗生素的产生。研究人员给一组绝经后妇女为期2周的雌激素补充剂,并进行了分析。他们发现,雌激素会作用于基因表达,以帮助激

NEJM:男性衰老,雌激素分泌不足也是关键

一个已经明确的元凶是睾酮,因为随着时间的流逝,男人产生的雄性激素渐渐变少。但现在还出现了一个令人惊讶的新答案。医生称这个答案会为有关男性身体如何变老的研究注入新的活力。结果证明,雌激素,也就是女性荷尔蒙,在男性身体中发挥的作用远大于之前的想像,而且,与女性一样,雌激素水平降低会导致男性腰围增大。【原文下载】 宾夕法尼亚大学(University of Pennsylvania)医学教授彼得·

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