Adult flies fed a high-sugar diet (post-eclosion) exhibit a shorter life-span, cardiac arrhythmia, and progressive deterioration of heart function. These phenotypes are accompanied by fibrosis-like collagen accumulation, insulin signaling defects, and fat accumulation. The reduction in life span is more severe in the presence of reduced insulin or reduced P38 MAPK signaling. Identification of components of affected cellular pathways has been demonstrated, providing potential therapeutic approaches.
[updated Jan. 2017 by FlyBase; FBrf0222196]
Diabetic cardiomyopathy describes diabetes-associated changes in the structure and function of the myocardium that is not directly attributable to other confounding factors such as coronary artery disease (CAD) or hypertension (Boudina and Abel, 2010; pubmed:20180026).