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Chang Ho Song  (Song CH) 1 Article
Estimation of Cut-off Point of Fasting Blood Glucose Predicting Pancreaticbeta-cell Decompensation During Oral Glucose Tolerance Test.
Mi Deok Lee, Hong Seung Kim, Young Uk Kim, Young Goo Shin, Chang Ho Song, Young Jun Won, Choon Hee Chung
Korean Diabetes J. 1998;22(4):513-521.   Published online January 1, 2001
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AbstractAbstract PDF
The secretory dysfunction of pancreatic B-cell is one of the important in the pathogenesis of NIDDM. And the conversion from IGT to DM is developed by the exhaustion and decompensation of 0-cell. So our purp was estimating the cut-off point of fasting blood sugar predicting B-cell decompensation during OGTT. METHOD: The clinical characteristics and anthropometric parameters were determined in all subjects. 75 g ora] glucose tolerance tests were performed with serial blood sampling to measure plasma glucose levels, insulin and C-peptide levels. And we calcolated insulin response areas and C-peptide response areas. RESULTS: l) The basal C-peptide levels were elevated in IG1' and DM group. however, post-load 30min C-peptide and 30min insulin levels were significantly decreased in DM group compared with normal and IGl. 2) IGT group showed the highest C-peptide response areas among three groups. 3) The relationships between fasting plasma glucose, C-peptide & insulin levels showed that basal C-peptide level had turning point at 6.7 mmol/L of fastiing glucose, basal insulin level at 6.5 mmol/L, 30 min C-peptide at 6.2 mmol/1, 30 min insulin at 5.8 mmol/L and C-peptide response area at 7.0 mmol/L. Conclusion : Above result suggest that the fasting plasma glucose of 7.0 mmol/L may be the cut-off point of pancreatic B-cell decompensation.

Diabetes Metab J : Diabetes & Metabolism Journal
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