, Volume 38, Issue 2, pp 181–187 | Cite as

Positive correlations of liver enzymes with metabolic syndrome including insulin resistance in newly diagnosed type 2 diabetes mellitus

  • Yifei Zhang
  • Xi Lu
  • Jie Hong
  • Menglei Chao
  • Weiqiong Gu
  • Weiqing Wang
  • Guang Ning
Original Article


It has long been proposed that elevation of liver enzymes including alanine aminotransferase (ALT), aspartate aminotransferase (AST) and γ-glutamyltransferase (GGT) may be associated with insulin resistance (IR). In the present study, we aimed to investigate the association of the above mentioned liver enzymes with IR by using hyperinsulinemic euglycemic clamp, as well as their relationship with individual component of metabolic syndrome (MetS) in 95 newly diagnosed type 2 diabetes (T2DM) Chinese patients. All the diagnosed patients did not use drugs for treatment of diabetes or dyslipidemia previously and were divided into IR and non-IR groups. The results showed that IR group had significantly higher ALT, AST, and GGT (P < 0.01, P < 0.01, and P < 0.05, respectively) compared with non-IR group. According to the individual MetS component, ALT and AST were significantly increased in patients with high blood pressure compared with those without (both P < 0.001); ALT and GGT were increased in patients with high triglyceride (P < 0.05 and P < 0.01); AST was increased in patients with central obesity (P < 0.05). In correlation analysis, a significant association was found between the three liver enzymes and clamp insulin sensitivity index (all P < 0.001). In the linear regression analysis, ALT was the determinant of clamp ISI, independent of age, sex, BMI, and fasting and OGTT 2 h plasma glucose (P < 0.0001). In conclusion, liver enzymes, especially ALT, were significantly associated with IR according to direct clamp assessment, which were independent of the traditional risk factors in diabetic patients; and individual liver enzymes may have different relationship with individual component of MetS.


Liver enzymes Hyperinsulinemic euglycemic clamp Insulin resistance Metabolic syndrome 



This study is supported by the grant from 973 Project (No. 2006 CB 503904), National Natural Science Foundation of China (No. 30725037 and No. 30700383), and 863 project (NO: 2006AA02A409).

Conflict of interest statement



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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Yifei Zhang
    • 1
  • Xi Lu
    • 1
  • Jie Hong
    • 1
  • Menglei Chao
    • 1
  • Weiqiong Gu
    • 1
  • Weiqing Wang
    • 1
  • Guang Ning
    • 1
    • 2
  1. 1.Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrinology and Metabolism, Endocrine and Metabolic E-Institutes of Shanghai Universities (EISU) and Key Laboratory for Endocrinology and Metabolism of Chinese Health Ministry, Rui-jin HospitalShanghai Jiao-Tong University, School of MedicineShanghaiChina
  2. 2.Laboratory of Endocrinology and Metabolism, Institute of Health Sciences, Shanghai Institutes for Biological SciencesChinese Academy of Sciences/Shanghai Jiao-Tong University School of MedicineShanghaiChina

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