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Intermittent High Glucose Enhances Apoptosis Related to Oxidative Stress in Human Umbilical Vein Endothelial Cells: The Role of Protein Kinase C and NAD(P)H-Oxidase Activation
The effects of intermittent and constant high glucose in the formation of nitrotyrosine and 8-hydroxydeoxyguanosine (markers of oxidative stress), as well as the possible linkage between oxidative stress and apoptosis in endothelial cells, have been evaluated. Stable high glucose increased nitrotyrosine, 8-hydroxydeoxyguanosine (8-OHdG), and apoptosis levels. However, these effects were more pronounced in intermittent high glucose. Protein kinase C (PKC) was elevated in both such conditions,doi:10.2337/diabetes.52.11.2795 pmid:14578299 fatcat:t2fcyrhdcfa4xm3zuqb6gcs5si