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Postprandial hyperglycaemia: noxious effects on the vessel wall
1Centre for Clinical Studies, GWT, Technical University Dresden, Germany.
Insights
High blood sugar after meals (postprandial hyperglycemia) is a significant risk factor for heart disease and death. Monitoring post-meal glucose levels is crucial for preventing diabetes complications.
Area of Science:
- Endocrinology
- Cardiovascular Medicine
- Metabolic Disorders
Background:
- Postprandial hyperglycemia is an independent risk factor for cardiovascular disease and mortality in impaired glucose tolerance and type 2 diabetes.
- Atherosclerosis, measured by carotid intima-media thickness, correlates with 2-hour postchallenge glucose levels even with normal HbA1c.
- Pathophysiological and epidemiological data confirm harmful acute and chronic effects of excessive post-load glucose on the vascular wall.
Purpose of the Study:
- To emphasize the clinical significance of postprandial glucose monitoring.
- To highlight the link between postprandial hyperglycemia and cardiovascular complications.
- To advocate for the integration of postprandial glucose monitoring into diabetes management.
Main Methods:
- Analysis of data from the Risk Factors in IGT for Atherosclerosis and Diabetes (RIAD) study.
- Review of findings from four major outcome studies (DIS, Kumamoto, DIGAMI, STOP-NIDDM) focusing on postprandial glucose control.
- Synthesis of pathophysiological and epidemiological evidence.
Main Results:
- Postprandial hyperglycemia is a confirmed risk factor for cardiovascular comorbidities and all-cause mortality.
- Elevated 2-hour postchallenge glucose is associated with atherosclerosis, independent of HbA1c levels.
- Evidence from multiple studies supports the detrimental effects of post-load glucose excursions on endothelial and vessel health.
Conclusions:
- Excessive post-load glucose excursions have both acute and chronic adverse effects on the endothelium and vessel wall.
- Postprandial glucose monitoring, alongside HbA1c and fasting glucose, is essential for preventing diabetes complications.
- Integrating postprandial glucose monitoring into treatment strategies is recommended for cardiovascular risk reduction.
Abstract:
In recent years postchallenge or postprandial hyperglycaemia has been found to be an independent risk factor for cardiovascular comorbidities and all-cause mortality in impaired glucose tolerance (IGT) and type 2 diabetes. With the database of the Risk Factors in IGT for Atherosclerosis and Diabetes (RIAD) study, it was also shown that atherosclerosis as measured by intima-media thickness of the common carotid arteries was associated with 2-hour postchallenge glucose level when HbA1c was normal. Taken together there are now comprehensive and consistent data from pathophysiological as well as epidemiological studies that excessive post-load glucose excursions have acute and chronic harmful effects on the endothelium and vessel wall. This is supported by four outcome studies that included control of postprandial glucose to prevent cardiovascular disease: Diabetes Intervention Study (DIS), Kumamoto study, DIGAMI study, and STOP-NIDDM trial. Therefore, in addition to HbA1c and fasting blood glucose, postprandial glucose monitoring should be an integral part of treatment to prevent acute and chronic complications.