Abstract
Background: People with Type 2 diabetes mellitus are at high risk of cardiovascular disease and microvascular complications. A number of epidemiological studies have shown a strong relationship between the prevalence of vascular complications and raised levels of plasma glucose and glycated haemoglobin (HbA1c). Accumulating evidence supports the superior independent prognostic importance of the post-challenge glucose level, measured either 1 or 2 h after a glucose load. Thus, data from studies conducted in Europe, the USA, and particularly the Pacific rim and South Asia suggest that 2-h glucose is a better predictor of cardiovascular and all-cause mortality than pre-breakfast glucose, both in people with diabetes and those with pre-diabetic impaired glucose tolerance (IGT). Pathophysiological studies suggest that post-prandial rises in hyperglycaemia can trigger endothelial damage through multiple mechanisms, including increased oxidative stress and the increased expression of atherogenic circulat...

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