J Diabetes Investig
September 2025
Aims/introduction: High 1-h plasma glucose levels have an increased risk of type 2 diabetes. To determine the pathophysiological features in participants with normal glucose tolerance (NGT) with 1-h hyperglycemia (HG), we investigated the variability in the glucagon and insulin secretions after oral glucose loading and nutrient survey.
Materials And Methods: A 75-g oral glucose tolerance test (OGTT) was performed in Japanese Americans (aged 40-75 years), enrolled in medical surveys conducted in 2015.