母亲妊娠晚期血清25-羟维生素D与儿童期喘息和过敏症转归的关系
2012/08/28
摘要
背景:有关产前维生素D暴露与儿童期哮喘关系的研究结果存在矛盾。研究显示,妊娠期摄入较多的维生素D可能与儿童期喘息发生风险下降相关,但一项有关母亲妊娠晚期血清25-羟维生素D的研究显示,妊娠期较高的血清维生素D水平与儿童期哮喘风险增加相关。
目的:评价母亲血清25-羟维生素D状态与儿童6岁时哮喘和喘息表现型之间的关系。同时,探寻母亲25-羟维生素D状态和儿童特应性和肺功能主观检测指标的关系。
方法:对足月分娩的860名儿童的母亲,妊娠34周时检测血清25-羟维生素D。在儿童6、12、24和36个月以及6岁时采用问卷调查收集信息,评价受试者的喘息是否为持续性/迟发性或暂时性。6岁时进行肺活量检测,过敏症状态通过皮肤针刺试验检测。对451名儿童检测呼出气一氧化氮,对216名儿童检测支气管高反应性。
结果:母亲妊娠晚期25-羟维生素D状态与儿童6岁时的哮喘和喘息无关。母亲维生素D状态与暂时性或持续性/迟发性喘息无关;基于过敏症状态进行分组后,也未观察到维生素D状态与持续性/迟发性喘息相关。皮肤敏感性和肺功能与维生素D状态无关。
结论:本研究显示母亲妊娠晚期血清25-羟维生素D含量较高并不会增加儿童期哮喘、喘息和过敏症的发生。
(苏楠 审校)
Thorax. 2012 Jun 15. [Epub ahead of print]
Maternal late-pregnancy serum 25-hydroxyvitamin D in relation to childhood wheeze and atopic outcomes.
Pike KC, Inskip HM, Robinson S, Lucas JS, Cooper C, Harvey NC, Godfrey KM, Roberts G; the Southampton Women’s Survey Study Group.
Source
Clinical and Experimental Sciences Academic Unit, University of Southampton Faculty of Medicine, Southampton, UK.
Abstract
BACKGROUND: Studies exploring the relationship between prenatal vitamin D exposure and childhood asthma have yielded conflicting results. Higher vitamin D intake during pregnancy has been shown to lower the risk of childhood wheeze, yet a study of maternal late-pregnancy serum 25-hydroxyvitamin D suggested higher serum concentrations may be associated with increased childhood asthma.
OBJECTIVE: To assess the relationship between mothers’ serum 25-hydroxyvitamin D status and asthma and wheeze phenotypes in their children at age 6 years. Also to explore the relationship between maternal 25-hydroxyvitamin D status and objective measures of childhood atopy and lung function.
METHODS: Serum 25-hydroxyvitamin D was measured at 34 weeks’ gestation in the mothers of 860 children born at term. Wheeze was classified as either transient or persistent/late using questionnaire data collated from 6, 12, 24 and 36 months and 6 years. At 6 years spirometry was performed and atopic status was determined by skin prick testing, exhaled nitric oxide was measured in 451 children and bronchial hyperresponsiveness in 216 children.
RESULTS: There were no significant associations between maternal late-pregnancy 25-hydroxyvitamin D status and either asthma or wheeze at age 6 years. Maternal vitamin D status was not associated with transient or persistent/late wheeze; no significant association was found between persistent/late wheeze when subdivided according to atopic status. No associations were found with skin sensitisation or lung function.
CONCLUSIONS: This study provides no evidence that exposure to higher concentrations of 25-hydroxyvitamin D in maternal serum during late pregnancy increases the risk of childhood asthma, wheeze or atopy.
Thorax. 2012 Jun 15. [Epub ahead of print]
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过敏性哮喘小鼠气道结构细胞和炎症细胞的NPY和NPY受体
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母亲妊娠晚期血清25-羟维生素D与儿童期喘息和过敏症转归的关系