Journal article
Diabetic heart shows preferential secretion of inner mitochondrial membrane proteins in the presence of mitochondrial oxidative stress
PM Miotto, J Bayliss, G Fidelito, JR Bell, LMD Delbridge, MJ Watt, MK Montgomery
American Journal of Physiology Endocrinology and Metabolism | Published : 2025
Abstract
Heart disease, including diabetic cardiomyopathy, is a leading cause of mortality in patients with type 2 diabetes (T2D). Defects in heart function are accompanied by marked changes in cardiac metabolism, including dysregulation of lipid and glucose metabolism, mitochondrial dysfunction, and oxidative stress. In addition to these metabolic defects, the heart is an important endocrine organ. However, although T2D has been shown to impact the secretome of liver, skeletal muscle, and adipose tissue (among others), little is known about the secretome of the heart and the influence of T2D on cardiac protein secretion. Using precision-cut heart slices from mice with insulin resistance (20-wk of hig..
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Grants
Awarded by Natural Sciences and Engineering Research Council of Canada