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Abstract
Vascular complications in diabetes are a significant source of human morbidity and mortality, affecting multiple organ systems and persisting despite tight glucose control. Many of these complications can be linked to impairments in vasculogenesis, the process by which circulating and bone marrow-derived endothelial progenitor cells (EPCs) contribute to new vessel formation. Recent evidence suggests that hyperglycemia alone, through the mitochondrial overproduction of reactive oxygen species (ROS), can induce changes in gene expression and cellular behavior in diabetes. In this review, we examine how hyperglycemia-induced overproduction of ROS could explain EPC impairments observed in diabetes. Experimentally, impairments in EPC function prevent new blood vessel growth and are potentially reversible by manipulations to decrease ROS. Novel strategies aimed at reducing hyperglycemia-induced ROS may be a useful adjuvant to antihyperglycemic therapies in the restoration of vasculogenesis and the prevention of diabetic complications.
View details for Web of Science ID 000233962500008
View details for PubMedID 16356110