Int J Clin Pract:维生素D补充能否使多囊卵巢综合征患者获益

2017-07-28 吴刚 环球医学

多囊卵巢综合征(PCOS)影响大约5%~10%的育龄女性,被认为是一个最常见的内分泌紊乱。2017年6月,发表在《Int J Clin Pract》的一项由希腊科学家进行的Meta分析,考察了维生素D补充对PCOS患者激素和血糖特征的影响。



多囊卵巢综合征(PCOS)影响大约5%~10%的育龄女性,被认为是一个最常见的内分泌紊乱。2017年6月,发表在《Int J Clin Pract》的一项由希腊科学家进行的Meta分析,考察了维生素D补充对PCOS患者激素和血糖特征的影响。

背景:维生素D缺乏常发生在PCOS女性中。至今,这些患者维生素D的补充还未与他们的激素和代谢状态相关联。

目的:旨在考察维生素D补充对PCOS女性激素和代谢特征的影响。

材料和方法:研究人员对Medline、Scopus、ClinicalTrials.gov和Cochrane中心登记数据库进行了发表的随机对照试验的检索。使用RevMan 5.3.5软件进行Meta分析。

结果:共9项研究纳入到Meta分析中,这些研究考察了647名患者中,维生素D补充的影响。根据Meta分析,任何亚组的比较中,血清睾酮(MD,0.04ng/mL,95% CI,-0.09~0.17)和血清LH(MD,-0.48IU/mL,95% CI,-1.97~1.00)都未受到维生素D补充的显着影响。相反,血清DHEAS受到维生素D的显着影响(MD,-32.24μg/dL,95% CI,-32.24~-14.01),与安慰剂相比,其影响主要受到维生素D的影响。维生素D补充对空腹血糖(MD,0.42mg/dL;95% CI,-2.75~3.60)或空腹胰岛素(MD,1.27μU/mL;95% CI,-1.42~3.97)水平没有影响。然而,与维生素D相比,接受安慰剂的患者,HOMA-IR增加(MD,0.52;95% CI,0.39~0.65)。

结论:没有证据支持维生素D补充可使PCOS患者显着获益。但是,鉴于入组患者数相对较小,因此需要进一步的研究来阐明这一领域。

原始出处:

Pergialiotis V, Karampetsou N, Panagopoulos P, et al. The effect of Vitamin D supplementation on hormonal and glycaemic profile of patients with PCOS: A meta-analysis of randomised trials. Int J Clin Pract. 2017 Jun;71(6). doi: 10.1111/ijcp.12957. Epub 2017 May 19.

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    2017-09-24 jyzxjiangqin

    维生素D的补充.

    0

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    2017-08-01 ylzr123

    认真学习,把间接经验应用到临床实践中去,然后再总结出新思路。给点赞啦

    0

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    2017-07-28 1e0e5a1fm42(暂无匿称)

    henhao

    0

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血中25-羟维生素D水平较低与跌倒和骨折风险增加相关。但是,在一般人群中,补充大剂量维生素D能否降低跌倒和骨折的风险?2017年6月,发表在《Lancet Diabetes Endocrinol》的一项由英国、新西兰和美国科学家进行的随机、双盲、安慰剂对照的ViDA研究,其次要结局考察了每月高剂量维生素D补充对跌倒和非椎体骨折的影响。

J Nutr Health Aging:天坛医院研究称,卒中患者若维生素D不足,复发和死亡风险增加

北京天坛医院赵继宗院士等开展的一项2年随访研究提示,对于缺血性卒中患者,血清维生素D水平高一点比较好,血清维生素D水平较低的患者卒中复发和死亡的风险明显升高。 该研究对216例缺血性卒中患者随访了2年,卒中复发率为18.5%,死亡率为30.1%。 研究者指出,该研究表明,维生素D可能是我国缺血性卒中患者的独立保护因素。维生素D缺乏导致卒中复发和死亡风险升高的机制尚不明确。 校正已知危险因素后

Oncotarget:维生素D缺乏通过激发肝细胞中的氧化应激引起胰岛素抵抗

胰岛素抵抗是指各种原因使胰岛素促进葡萄糖摄取和利用的效率下降,机体代偿性的分泌过多胰岛素产生高胰岛素血症,以维持血糖的稳定。胰岛素抵抗易导致代谢综合征和2型糖尿病。研究表明,维生素D缺乏可导致胰岛素抵抗。维生素D3是维生素D在人体内主要的活性形式,1α-羟化酶是激活维生素D3合成的关键酶。发表于Oncotarget的一篇文章中,研究人员发现,维生素D缺乏诱导的胰岛素抵抗与肝细胞氧化应激有关。