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BMC Medical Genetics

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Open Access 01-12-2010 | Research article

MTNR1B rs10830963 is associated with fasting plasma glucose, HbA_1Cand impaired beta-cell function in Chinese Hans from Shanghai

Authors: Chen Liu, Ying Wu, Huaixing Li, Qibin Qi, Claudia Langenberg, Ruth JF Loos, Xu Lin

Published in: BMC Medical Genetics | Issue 1/2010

Abstract

Background

Genome-wide association studies (GWAS) in White Europeans have shown that genetic variation rs10830963 in melatonin receptor 1B gene (MTNR1B) is associated with fasting glucose and type 2 diabetes, which has also been replicated in several Asian populations. As a variant in the gene involved in the regulation of circadian rhythms, the effect of the variant on sleep status remains unknown. This study aimed to investigate the effects of MTNR1B rs10830963 on fasting glucose, type 2 diabetes and sleep status in Chinese Hans.

Methods

MTNR1B rs10830963 was genotyped in a population-based cohort including 3,210 unrelated Chinese Hans from Beijing and Shanghai, and tested for associations with risk of type 2 diabetes, diabetes-related traits and sleep status.

Results

We confirmed the associations of MTNR1B rs10830963 with fasting glucose (beta = 0.11 mmol/l, 95%CI [0.03, 0.18], P = 0.005), glycated hemoglobin (HbA_1c) (beta = 0.07%, 95%CI [0.02,0.12], P = 0.004) and homeostasis model assessment of beta-cell function (HOMA-B) (beta = -5.01%, 95%CI [-8.24,-1.77], P = 0.003) in the Shanghai, but not in the Beijing subpopulation (P ≥ 0.58). The effect size of MTNR1B rs10830963 on fasting glucose in Shanghai Chinese Hans was comparable to that reported from other Asian populations. We found no evidence of associations with type 2 diabetes (OR 1.05 [0.90-1.23], P = 0.54), homeostasis model assessment of insulin sensitivity (HOMA-S) (P = 0.86) or sleep status (P ≥ 0.44).

Conclusions

A common variant in MTNR1B was associated with fasting glucose, HbA_1C and HOMA-B but not with sleep status in Chinese Hans from Shanghai, strengthening the role of MTNR1B rs10830963 in fasting glycemia and impaired beta-cell function.

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The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2350/11/59/prepub

Title: MTNR1B rs10830963 is associated with fasting plasma glucose, HbA1Cand impaired beta-cell function in Chinese Hans from Shanghai
Authors: Chen Liu
Ying Wu
Huaixing Li
Qibin Qi
Claudia Langenberg
Ruth JF Loos
Xu Lin
Publication date: 01-12-2010
Publisher: BioMed Central
Published in: BMC Medical Genetics / Issue 1/2010
Electronic ISSN: 1471-2350
DOI: https://doi.org/10.1186/1471-2350-11-59

Keynote webinar | Spotlight on medication adherence

Springer Medicine

MTNR1B rs10830963 is associated with fasting plasma glucose, HbA_1Cand impaired beta-cell function in Chinese Hans from Shanghai

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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