Key research themes
1. How do interindividual variations in glycated hemoglobin (HbA1c) independent of glucose levels influence risk assessment and clinical interpretation in diabetes?
This research theme investigates the biological and clinical implications of variability in HbA1c levels that cannot be explained solely by plasma glucose concentrations, exploring indices like the Hemoglobin Glycation Index (HGI) and factors that modulate HbA1c independent of glycemia. Understanding these variations is crucial for improving individualized risk stratification for cardiovascular disease (CVD) and diabetic complications, as well as interpreting HbA1c measurements correctly in diverse populations and clinical conditions.
2. What are the methodological considerations and challenges in accurate measurement of glycated hemoglobin in clinical practice?
This theme covers methodological evaluation of HbA1c assays, including comparison of chromatographic and immunoassay techniques, impact of preanalytical sample factors, and confounding biochemical interferences. Advances and limitations in assay precision, influence of hemoglobin variants and hematologic conditions, and standardization challenges are key for reliable clinical interpretation and consistent diabetes diagnosis and monitoring.
3. How do comorbid conditions, hemoglobinopathies, and end-stage renal disease (ESRD) affect the diagnostic and prognostic utility of HbA1c and alternative glycemic markers?
This theme explores the alterations in HbA1c reliability caused by coexisting disorders such as hemoglobin variants, thalassemia, dialysis-dependent CKD, and anemia. It evaluates clinical implications on diabetes diagnosis and monitoring, the need for alternative biomarkers like glycated albumin, and adjustments in clinical guidelines to account for these confounders. Understanding these influences is critical for optimizing glycemic control and reducing complications in complex patient populations.