5HTTLPR polymorphism and postpartum depression risk: A meta-analysis.
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ABSTRACT: OBJECTIVE:Postpartum depression (PPD) is an episode of major depressive disorder that affecting women of childbearing age. 5-HTTLPR is 1 of the most extensively investigated polymorphisms in PPD. However, the previous results were inconsistent and inclusive. Hence, we performed a meta-analysis to precisely evaluate the association between 5-HTTLPR polymorphism and PPD susceptibility. METHODS:The studies were retrieved through databases including PubMed, web of science, EMASE, and CNKI. The odd ratios (ORs) and 95% confidence interval (CIs) were applied for evaluating the genetic association between 5-HTTLPR (L/S) polymorphism and PPD risk. RESULTS:Six studies with 519 cases and 737 controls were enrolled in the present study. The frequencies of allelic (OR?=?0.72, 95%CI?=?0.60-0.85, P?=?.0001) and dominant (OR?=?0.57, 95%CI?=?0.44-0.73, P?=?.004) models of 5-HTTLPR polymorphism significantly decreased in patients with PPD than those in the healthy controls. Subgroup analysis based on ethnicity revealed that the allelic (OR?=?0.71, 95%CI?=?0.60-0.85, P?=?.0001) and dominant (OR?=?0.51, 95%CI?=?0.32-0.79, P?=?.003) models of 5-HTTLPR polymorphism were significantly associated with PPD risk in Asian population (P?>?.05). No evidence was observed between the recessive model of 5-HTTLPR polymorphism and PPD risk (P?>?.05). CONCLUSIONS:The allelic and dominant models of 5-HTTLPR polymorphism might be protective factors for PPD. To confirm these results, larger number of association studies or multicenter case-control studies are necessary in the future.
SUBMITTER: Li J
PROVIDER: S-EPMC7523802 | biostudies-literature | 2020 Sep
REPOSITORIES: biostudies-literature
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