Impact of acute-phase insulin secretion on glycemic variability in insulin-treated patients with type 2 diabetes
Document Type
Article
Publication Date
4-1-2020
Abstract
Aims: The association between β-cell function and glycemic variability remains to be clarified in insulin-treated patients with type 2 diabetes. Therefore, the study sought to examine the association of various indices of β-cell function with glycemic variability in Chinese insulin-treated patients with type 2 diabetes. Methods: Glycemic variability was assessed by the coefficient of variation (CV) of glucose levels with the use of continuous glucose monitoring (CGM). Basal β-cell function was evaluated by fasting C-peptide (FCP) and the homeostasis model assessment 2 for β-cell function (HOMA2-%β). Postload β-cell function was measured by 2-hour C-peptide (2hCP) and the acute C-peptide response (ACPR) to arginine. Results: When a cutoff value of CV ≥ 36% was used to define unstable glucose, the multivariable-adjusted odds ratios for labile glycemic control were 0.34 (95% CI 0.18–0.64) for each 1 ng/mL increase in ACPR, 0.47 (95% CI 0.27–0.81) for each 1 ng/mL increase in FCP, 0.77 (95% CI 0.61–0.97) for each 1 ng/mL increase in 2hCP, and 1.00 (95% CI 0.98–1.01) for each 1% increase in HOMA2-%β. When we further adjusted for 2hCP and HOMA2-%β in the ACPR and FCP analyses, and adjusted for ACPR or FCP in the 2hCP analyses, only ACPR but not FCP or 2hPC remained to be a significant and inverse predictor for labile glycemic control. Conclusions: ACPR evaluated by the arginine stimulation test may be superior to other commonly used β-cell function parameters to reflect glycemic fluctuation in insulin-treated patients with type 2 diabetes.
Recommended Citation
Si, Y., Shen, Y., Lu, J., Ma, X., Zhang, L., Mo, Y., Lu, W., Zhu, W., Bao, Y., Hu, G., & Zhou, J. (2020). Impact of acute-phase insulin secretion on glycemic variability in insulin-treated patients with type 2 diabetes. Retrieved from https://repository.lsu.edu/pop_public_health_pubs/97