Abstract
The purpose of our study is to examine the association between serum GGT levels and ventricular instability in Chinese patients with T2DM. We conducted a cross-sectional, community-based study in Nanjing, China from June to November 2011. Among 10,050 patients aged 40–79 years, we enrolled 2444 with pre-diabetes, 2496 with T2DM, and 4521 without diabetes (non-diabetes). Electrocardiograms were performed to measure the QT interval corrected for heart rate (QTc) and QT interval dispersion (QTd). Serum GGT levels, metabolic parameters, body mass index, and blood pressure were also measured. We found that there were no significant associations of increased QTc/QTd with serum GGT levels in participants with pre-existing T2DM and non-diabetes, after adjusting for age, duration of diabetes, and metabolic parameters. Even after adjustment, higher risks of QTc ≥ 440 ms/√s and QTd ≥ 58 ms were found in participants with serum GGT levels ≥49 U/L compared with those with <15 U/L in the pre-diabetes (QTc: OR 1.96, 95 % CI 1.23–2.47; QTd: OR 1.34, 95 % CI 1.07–1.94) and newly diagnosed T2DM (QTc: OR 2.01, 95 % CI 1.39–2.51; QTd: OR 1.53, 95 % CI 1.03–1.99) groups. We conclude that Increased serum GGT levels are associated with some markers of ventricular repolarization abnormalities in the early stage of T2DM.
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Acknowledgments
The REACTION study was supported by grants from the Chinese Medical Association Foundation and Chinese Endocrine Society (Grant: 12020240314). This work was supported in part by the Special Foundation for Science and Technology Service Platform of Jiangsu Province (Grant: BM2012064). We thank all the participants in this study, along with Dr Tao Chen from Nanjing Medical University for assistance with statistical analysis. The authors have nothing to disclose.
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Kun Wang and Ling Li have contributed equally to this study.
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Wang, K., Li, L., Wu, Y. et al. Increased serum gamma-glutamyltransferase levels are associated with ventricular instability in type 2 diabetes. Endocrine 52, 63–72 (2016). https://doi.org/10.1007/s12020-015-0760-1
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DOI: https://doi.org/10.1007/s12020-015-0760-1