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  • Title: Meta-analysis of the association between the Trp64Arg polymorphism of the beta-3 adrenergic receptor and susceptibility to gestational diabetes mellitus.
    Author: Guan L, Cui X, Zhou H.
    Journal: J Obstet Gynaecol; 2018 Feb; 38(2):172-176. PubMed ID: 28783993.
    Abstract:
    The study aimed to explore the associations between Trp64Arg polymorphism of Beta-3 Adrenergic receptor (ADRB3) and susceptibility to gestational diabetes mellitus (GDM). Relevant studies till December 2013 were identified through searching electronic databases. A meta-analysis was conducted on associations between Trp64Arg polymorphism in ADRB3 and susceptibility to GDM. We found no association between Trp64Arg polymorphism in ADRB3 and susceptibility to GDM in overall population (Arg vs. Trp: OR = 1.20, 95%CI = 0.99-1.47, p = .16; Trp/Arg + Arg/Arg vs. Trp/Trp: OR = 1.22, 95%CI = 0.99-1.50, p = .11). In subgroup analysis on European Caucasian population, Trp64Arg in ADRB3 was associated with susceptibility to GDM. Trp64Arg polymorphism in ADRB3 had certain association with susceptibility to GDM in the European Caucasian population. Impact statement What is already known on this subject: Gestational diabetes mellitus (GDM) is recognised as carbohydrate intolerance of varied severity that begins or is first recognised during pregnancy. A missense mutation in the codon 64 of the Beta-3 adrenergic receptor (ADRB3), Trp64Arg, leads to the substitution of tryptophan by arginine in the first intracellular loop of the ADRB3 receptor. Trp64Arg Polymorphism has also been reportedly associated with increased body weight, type 2 diabetes mellitus, insulin resistance and obesity. However, other investigators have found that the Trp64Arg polymorphism of ADRB3 has no effect on insulin resistance, obesity or type 2 diabetes mellitus. What the results of the study add: Our present meta-analysis demonstrated that Trp64Arg polymorphism in ADRB3 was associated with susceptibility to GDM in the European Caucasian population. Trp64Arg polymorphism in ADRB3 may be able to predict the occurrence of GDM and used for the diagnosis of it in clinic. What the implications are of these findings for clinical practice and future research: The findings in this study may provide a basis for the further study on Trp64Arg polymorphism in future research.
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