J Alzheimers Dis:荟萃分析显示维生素D相关记忆和执行障碍Meta分析

2013-11-23 MedSci MedSci原创

  维生素D缺乏症与全球的成人认知损害有关。而维生素D缺乏症(患者)的哪些结构域特异性认知功能受损尚不清楚。  近日,2013年第一期《阿尔茨海默病杂志》发表的一项研究系统评价并定量分析了血浆25-羟维生素D(25OHD)浓度与成人情节记忆和执行功能的关系。研究显示,低血浆25OHD浓度预示着执行障碍,尤其在精神转移、信息更新和处理速度方面(的障碍)。与情节记忆之间的关联仍不清楚。  该研究在20

维生素D缺乏症与全球的成人认知损害有关。而维生素D缺乏症(患者)的哪些结构域特异性认知功能受损尚不清楚。


近日,2013年第一期《阿尔茨海默病杂志》发表的一项研究系统评价并定量分析了血浆25-羟维生素D(25OHD)浓度与成人情节记忆和执行功能的关系。研究显示,低血浆25OHD浓度预示着执行障碍,尤其在精神转移、信息更新和处理速度方面(的障碍)。与情节记忆之间的关联仍不清楚。

该研究在2012年5月,采用MeSH词组“维生素D”或 “羟胆骨化醇”,以及MeSH词组“记忆”或“记忆障碍”或“执行功能”或“注意”或“认知”或“认知障碍”或“痴呆”或“阿尔茨海默病”或“神经心理学测试”,不限日期地检索了Medline 和PsycINFO®图书馆数据库。运用固定效应Meta分析的反向方差法,分析了12项合格的研究。

结果显示,在选中的285项研究中,14项观察性的研究(包括3项回顾性队列研究)以及3项根浴研究达到了入选标准。所有研究都具有较高的质量。研究受试者在44个到5692个社区居民之间(0–100%为女性)。在混合分析中,虽然情节记忆障碍仅显示出与低25OHD浓度的中等相关性(差异的效应大小(ES)总值=-0.19[95%可信区间:-0.16,-0.03]),但其与执行障碍的更大程度的相关性(处理速度: TMT-A得分平均差异=4.0[95%可信区间:1.20;6.83];精神转移: TMT-B得分平均差异=12.47[95%可信区间:6.78;18.16];信息更新测试:ES=-0.31[95%可信区间:-0.5;-0.09] )。在初始25OHD浓度较低的情况下,TMT-B得分的事件衰减混合分析OR=1.25[95%可信区间:1.05;1.48]。维生素D补足可以引起执行功能的改进(前后对照的ES = −0.50 [95%可信区间:−0.69;−0.32]),但与对照组间没有显示出差异(干预后组间对照ES = 0.14 [95%可信区间:−0.04;0.32])。

原始出处:

Annweiler C, Montero-Odasso M, Llewellyn DJ, Richard-Devantoy S, Duque G, Beauchet O.
Meta-analysis of memory and executive dysfunctions in relation to vitamin D. J Alzheimers Dis. 2013 Jan 1;37(1):147-71. doi: 10.3233/JAD-130452.


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    2014-09-28 anminleiryan
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    2014-07-22 guojianrong
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    2014-06-11 一闲
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妊娠期间,维生素D不足和缺乏(分别定义为血清25–羟维生素D(25(OH)D)<50nM和<25nM)可能对母亲和孩子都有孩子都有不利的影响。患病率评估和特殊风险亚组的识别可能对预防策略的设计有用。为了研究妊娠早期维生素D缺乏的患病率和危险因素,来自丹麦南方大学H T Christesen教授及其团队进行了一项研究,该研究发现维生素D不足在妊娠早期普遍分布,高加索人中经产妇和没有被晒成棕褐色是

BMC Musculoskelet Disord:维生素D缺乏或与腰背痛有关

腰背痛由于其高发生率,是一种重要的公共健康问题,可导致活动受限,并且许多病例需要手术治疗。女性腰背痛比男性更常见,而且主要在绝经后女性。绝经后女性维生素D缺乏的患病率高,并与骨量丢失、肌肉减少症、椎体骨折和炎症反应相关,而骨量丢失、肌肉减少症、椎体骨折和炎症反应可能与腰背痛有关。为了评估腰背痛与维生素D缺乏之间的关系,以及有和没有维生素D缺乏女性之间卧床不起天数、不能上班天数和日常活动受限的差异,

Nat Rev Cardiol:补充维生素D对治疗收缩性高血压无益

研究要点: 1.25羟维生素D水平较低与高血压风险升高有关。 2.VitDISH试验研究了收缩期高血压患者补充维生素D对血压的影响。 3.研究结果发现,补充维生素D未能给收缩期高血压患者带来临床受益。 流行病学研究显示,25羟维生素D低水平与高血压风险升高相关,然而VitDISH研究发现,对于收缩期高血压患者而言,补充维生素D并不能显著降低患