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Value of serum advanced glycation end products-peptide in the screening of diabetes mellitus in a community-based population of high-risk diabetics

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Author:
No author available
Journal Title:
National Medical Journal of China
Issue:
40
DOI:
10.3760/cma.j.issn.0376-2491.2012.40.011
Key Word:
糖尿病;普查;糖基化终产物-肽;Diabetes mellitus;Mass screening;Advanced glycation end products-peptide

Abstract: Objective To explore the value of serum advanced glycation end products-peptide (AGE-P) in the screening of diabetes mellitus in a community-based population of high-risk diabetics.Methods A total number of 857 adult high-risk diabetics from a community-based population underwent 75 g oral glucose tolerance test (OGTF).Blood samples were drawn to measure the levels of fasting blood glucose (FBG),postprandial blood glucose (2 hPG) and glycosylated hemoglobin A1c (HbA1c).And blood samples were also collected to determine the serum level of AGE-P with the technique of flow injection analysis.Receiver operating characteristic (ROC) curve was plotted to assess the screening value of serum AGE-P in diabetes mellitus.Pearson correlation analysis was conducted to evaluate the association between serum AGE-P and FBG,2 hPG,HbA1c,body mass index (BMI),waist-to-hip ratio (WHR) and age.Results Among them,218 adults were diagnosed with diabetes based on the 2010 American Diabetes Association (ADA) criteria.According to the ROC curve,the optimal cut-point of serum AGE-P for diagnosing diabetes was 10.22 mg/L (a peak height of 25.39 mm) with sensitivity of 84.1%,specificity of 88.3% and positive predictive value of 71%.The area under curve (AUC) of serum AGE-P,FBG,2 hPG and HbA1c for diagnosing diabetes was 0.924,0.905,0.951 and 0.874 respectively.When comparing AUC between serum AGE-P and HbA1c,FBG and 2 hPG,statistical significance was only found in the comparisons between serum AGE-P and HbA1c (P < 0.025).Pearson correlation analysis showed that serum AGE-P was highly positively correlated with HbA1c,significantly positively correlated with FBG and 2 hPG and slightly positively correlated with WHR and age (all P < 0.05).But there was no correlation with BMI.Conclusions Serum AGE-P may be used for the screening of diabetes in the community-based population of high-risk diabetics.And it is even superior to HbA1c.

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