High-cholesterol diet augments endothelial dysfunction via elevated oxidative stress and reduced tetrahydrobiopterin in Ins2(Akita) mice, an autosomal dominant mutant type 1 diabetic model.

Abstract excerpt

1. Oxidative stress contributes to endothelial dysfunction and atherogenesis in diabetes. The present study tested the hypothesis that a high-cholesterol diet accelerates endothelial dysfunction in Ins2(Akita) mice, a Type 1 diabetic model with a spontaneous autosomal preproinsulin gene (Ins2 gene) mutation, through further increase of superoxide production. 2. The Ins2(Akita) diabetic mice were fed a...

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