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A new clinical screening strategy and prevalence estimation for glucokinase variant-induced diabetes in an adult Chinese population.

Genet. Med.2019 Apr;21(4):939-947. Epub 2018 Sep 24
Yumin Ma 1 , Xueyao Han 2 , Xianghai Zhou 1 , Yufeng Li 3 , Siqian Gong 1 , Simin Zhang 1 , Xiaoling Cai 1 , Lingli Zhou 1 , Yingying Luo 1 , Meng Li 1 , Wei Liu 1 , Xiuying Zhang 1 , Qian Ren 1 , Linong Ji 4
Yumin Ma 1 , Xueyao Han 2 , Xianghai Zhou 1 , Yufeng Li 3 , Siqian Gong 1 , Simin Zhang 1 , Xiaoling Cai 1 , Lingli Zhou 1 , Yingying Luo 1 , Meng Li 1 , Wei Liu 1 , Xiuying Zhang 1 , Qian Ren 1 , Linong Ji 4
+ et al

[No authors listed]

Author information
  • 1 Department of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing, China.
  • 2 Department of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing, China. xueyaohan@sina.com.
  • 3 Department of Endocrinology and Metabolism, Beijing Pinggu Hospital, Beijing, China.
  • 4 Department of Endocrinology and Metabolism, Peking University People's Hospital, Peking University Diabetes Center, Beijing, China. jiln@bjmu.edu.cn.

摘要


PURPOSE:To estimate the prevalence of glucokinase variant-induced diabetes (GCK-DM) in a general population and to establish a clinical strategy for identifying GCK-DM from type 2 diabetes (T2DM). METHODS:A population-based study of diabetes in a rural region of Beijing, China, was conducted using two-stage stratified random cluster sampling. The glucokinase exons were sequenced in patients with diabetes. RESULTS:A total of 3345 subjects, including 545 patients with diabetes, participated in this study. Seven patients with GCK-DM were identified. The estimated prevalence rates of GCK-DM were 0.21% and 1.3% in the whole population and the diabetic patients, respectively. In the newly diagnosed diabetic patients (New-DM), a triglyceride cutoff ≤1.43 mmol/L (126.55 mg/dl) could discriminate GCK-DM from T2DM with 100% sensitivity and 68.4% specificity. Its effectiveness was confirmed in an additional 134 early-onset young patients with T2DM and mild hyperglycemia. A clinical criterion based on triglyceride and mild hyperglycemia could differentiate GCK-DM from T2DM in New-DM and was shown to be effective in identifying GCK-DM from 559 early-onset young patients with T2DM in the hospital. CONCLUSIONS:The prevalence of GCK-DM is approximately 1.3% in the Chinese population with diabetes, and the new clinical screening strategy is helpful for identifying GCK-DM.

KEYWORDS: GCK, MODY, prediabetes, prevalence, type 2 diabetes