• Iron In Hypertensive Pregnancy

    From ironjustice@cool.zzn.com@21:1/5 to All on Tue Oct 6 04:28:49 2015
    High serum iron level is associated with an increased risk of hypertensive disorders during pregnancy: a meta-analysis of observational studies
    Nutrition Research
    Qi-Ying Songa, b, Wei-Ping Luoa, Cai-Xia Zhanga,
    Available online 5 October 2015
    doi:10.1016/j.nutres.2015.09.021

    Abstract
    The exact cause of hypertensive disorders in pregnancy (HDP) has not been clearly elucidated. Some researchers have recently investigated the relationship between the serum iron level and the incidence of HDP. However, the results are inconsistent, and
    these data have not been systematically evaluated. Therefore, we conducted a meta-analysis to evaluate the real association between the serum iron level and the incidence of HDP. We searched for published and ongoing trials in PubMed, EMBASE, Scopus, Web
    of Science, the Chinese Biomedical Database, CNKI, and the WANFANG database from January 1990 to May 2015 to identify studies that met our predefined criteria. Finally, 26 studies, including 1 cross-sectional study, 23 case-control studies, and 2
    prospective nested case-control studies, including 1349 patients and 1119 control subjects, were selected for this meta-analysis. The pooled results show that a high serum iron level increased the incidence of HDP (standard mean deviation [SMD], 1.50; 95%
    confidence interval [CI], 0.94 to 2.06; P < 0.0001), especially gestational hypertension (SMD, 3.65; 95% CI, 1.50 to 5.81; P = 0.0009) and preeclampsia (SMD, 1.27; 95% CI, 0.76 to 1.78; P < 0.0001). No significant difference was seen between the
    eclampsia groups and the control subjects (SMD, 3.34; 95% CI, -0.02 to 6.69; P = 0.05). The results of this meta-analysis indicate that a high serum iron level is associated with an increased risk of HDP, especially gestational hypertension and
    preeclampsia.

    Keywords
    Serum iron; pregnancy; hypertension; preeclampsia; eclampsia; meta-analysis Corresponding author at: Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China. Tel.: +86 20 87331943; fax: +86 20 87330446.
    Copyright (c) 2015 Published by Elsevier Inc.

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