Higher glucagon-to-insulin ratio is associated with elevated glycated hemoglobin levels in type 2 diabetes patients

Background/Aims The importance of α-cell dysfunction in the pathogenesis of type 2 diabetes has re-emerged recently. However, data on whether relative glucagon excess is present in clinical settings are scarce. We aimed to investigate associations between glucagon-to-insulin ratio and various metabo...

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Main Authors: Minyoung Lee, Minkyung Kim, Jong Suk Park, Sangbae Lee, Jihong You, Chul Woo Ahn, Kyung Rae Kim, Shinae Kang
Format: Article
Language:English
Published: The Korean Association of Internal Medicine 2019-09-01
Series:The Korean Journal of Internal Medicine
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Online Access:http://www.kjim.org/upload/pdf/kjim-2016-233.pdf
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Summary:Background/Aims The importance of α-cell dysfunction in the pathogenesis of type 2 diabetes has re-emerged recently. However, data on whether relative glucagon excess is present in clinical settings are scarce. We aimed to investigate associations between glucagon-to-insulin ratio and various metabolic parameters. Methods A total of 451 patients with type 2 diabetes naïve to insulin treatment were recruited. Using glucagon-to-insulin ratio, we divided subjects into quartiles according to both fasting and postprandial glucagon-to-insulin ratios. Results The mean age of the subjects was 58 years, with a mean body mass index of 25 kg/m2 The patients in the highest quartile of glucagon-to-insulin ratio had higher glycated hemoglobin (HbA1c) levels. HbA1c levels were positively correlated with both fasting and postprandial glucagon-to-insulin ratios. Subjects in the highest quartile of postprandial glucagon-to-insulin ratio were more likely to exhibit uncontrolled hyperglycemia, even after adjusting for confounding factors (odds ratio, 2.730; 95% confidence interval, 1.236 to 6.028; p for trend < 0.01). Conclusions Hyperglucagonemia relative to insulin could contribute to uncontrolled hyperglycemia in type 2 diabetes patients.
ISSN:1226-3303
2005-6648