LEPR gene Gln223Arg polymorphism and type 2 diabetes mellitus: A meta-analysis of 3,367 subjects

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Abstract

Background: The Leptin receptor (LEPR) Gln223Arg gene polymorphism has been associated with an increased susceptibility to Type 2 diabetes mellitus (T2DM). Results from various studies, however, are inconsistent. Objective and methods: To better elucidate the association of LEPR Gln223Arg gene polymorphism with T2DM in the Chinese population, a meta-analysis of 3,367 subjects from seven independent studies was performed. The pooled odds ratios (ORs) and corresponding 95% confidence intervals (95% CI) were evaluated by the fixed-effects model. Results: A significant relationship between LEPR Gln223Arg gene polymorphism and T2DM in the Chinese population was found under allele (OR: 1.432, 95% CI: 1.211-1.694, P=2.67×10-5), dominant (OR: 1.466, 95% CI: 1.215-1.769, P=6.33×10- 5), recessive (OR: 0.539, 95% CI: 0.303-0.960, P=0.036), heterozygous (OR: 0.700, 95% CI: 0.577-0.849, P=3.06×10-4), and homozygous (OR: 0.472, 95% CI: 0.265- 0.839, P=0.011) genetic models. Conclusions: LEPR Gln223Arg gene polymorphism was associated with an increased risk of T2DM in the Chinese population. Therefore, Chinese carriers of the G allele of LEPR Gln223Arg gene polymorphism may be more susceptible to T2DM than the general population.

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Li, Y. Y., Wang, H., Yang, X. X., Wu, J. J., Geng, H. Y., Kim, H. J., … Wang, L. S. (2017). LEPR gene Gln223Arg polymorphism and type 2 diabetes mellitus: A meta-analysis of 3,367 subjects. Oncotarget, 8(37), 61927–61934. https://doi.org/10.18632/oncotarget.18720

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