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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

The Effects of Vitamin D Supplementation on Biomarkers of Inflammation and Oxidative Stress Among Women with Polycystic Ovary Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Abstract Source:

Horm Metab Res. 2018 Feb 23. Epub 2018 Feb 23. PMID: 29475212

Abstract Author(s):

Maryam Akbari, Vahidreza Ostadmohammadi, Kamran B Lankarani, Reza Tabrizi, Fariba Kolahdooz, Seyed Taghi Heydari, Seyed Habibollah Kavari, Naghmeh Mirhosseini, Alireza Mafi, Majid Dastorani, Zatollah Asemi

Article Affiliation:

Maryam Akbari

Abstract:

The current systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to summarize the effect of vitamin D supplementation on biomarkers of inflammation and oxidative stress among women with polycystic ovary syndrome (PCOS). Cochrane library, Embase, PubMed, and Web of Science database were searched to identify related randomized-controlled articles (RCTs) published up to November 2017. Two researchers assessed study eligibility, extracted data, and evaluated risk of bias of included RCTs, independently. To check heterogeneity Q-test and Istatistics were used. Data were pooled by using the random-effect model and standardized mean difference (SMD) was considered as summary effect size. Seven RCTs were included into our meta-analysis. The findings showed that vitamin D supplementation in women with PCOS significantly decreased high-sensitivity C-reactive protein (hs-CRP) (SMD -1.03; 95% CI, -1.58, -0.49; p<0.001) and malondialdehyde (MDA) (SMD -1.64, 95% CI -2.26 to -1.02, p<0.001), and significantly increased total antioxidant capacity (TAC) levels (SMD 0.86, 95% CI 0.08 to 1.64, p=0.03). Vitamin D supplementation had no significant effect on nitric oxide (NO) (SMD 0.11, 95% CI -0.44 to 0.66, p=0.69) and total glutathione (GSH) levels (SMD 0.54, 95% CI -0.20 to 1.28, p=0.15). Overall, the current meta-analysis demonstrated that vitamin D supplementation to women with PCOS resulted in an improvement in hs-CRP, MDA and TAC, but did not affect NO and GSH levels.

Study Type : Meta Analysis, Review

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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