Factors Responsible for Combined Glucose Intolerance Developing into Isolated Post-challenge Hyperglycemia in Subjects with Impaired Fasting Glucose
Journal Title: International Journal of Diabetology & Vascular Disease Research (IJDVR) - Year 2015, Vol 3, Issue 7
Abstract
Aims/Introduction: We hypothesized that isolated post-challenge hyperglycemia (IPH) is the earliest stage of Type 2 diabetes. We conducted this study to determine factors responsible for combined glucose intolerance (CGI) developing into IPH in subjects with impaired fasting glucose. Materials and Methods: One hundred subjects with impaired fasting glucose were screened and 77 were enrolled. These subjects were divided into 3 groups: CGI, IPH- (IPH with HbA1c < 6.5%), and IPH+ (IPH with HbA1c ≧ 6.5%). The insulin secretion and insulin sensitivity index during the oral glucose tolerance test were compared among the CGI, IPHand IPH+ groups. Results: There were 27 subjects in the CGI group, 34 in the IPH-group, and 16 in the IPH+ group. Compared with the CGI group, the subjects with IPH- had a higher glucose AUC and lower insulinogenic index. The subjects with IPH+ had a higher glucose AUC, lower insulinogenic index, lower HOMA- ß, lower insulin AUC, lower total insulin secretion, and lower deposition index. Compared with the IPH- group, subjects with IPH+ were younger, and had lower body mass index, higher cholesterol, higher HbA1c, lower mean HOMA- ß, lower insulin AUC, and lower total insulin secretion. Conclusions: The factor responsible for CGI developing into IPH with HbA1c < 6.5% was decreased early-phase insulin secretion, but both decreased early and total insulin secretion were responsible for the development of CGI into IPH with HbA1c ≧ 6.5%.
Authors and Affiliations
Harn-Shen Chen
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- EP ID EP198952
- DOI 10.19070/2328- 353X-1500024
- Views 91
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