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MORPHOLOGICAL CHARACTERISTICS OF MYOCARDIAL ANGIOGENESIS AND ITS IMPAIRMENT IN EXPERIMENTAL DIABETES
General information about the article
Diabetes mellitus (DM) represents one of the most significant global health challenges, not only due to its metabolic derangements but also because of its strong association with cardiovascular diseases. Myocardial ischemia in the diabetic heart is accompanied by profound alterations in angio genesis, impairing tissue perfusion and regenerative responses. Experimental models of diabetes, in cluding chemical induction and genetic approaches, have provided important insights into the struc tural and molecular mechanisms underlying impaired myocardial angiogenesis. This article reviews the morphological and molecular features of myocardial angiogenesis in experimental diabetes, fo cusing on endothelial dysfunction, alterations in capillary density, ultrastructural damage, and dysreg ulation of signaling pathways such as VEGF, HIF-1α, and PI3K/Akt. Understanding these mecha nisms is crucial for the development of novel therapeutic strategies to improve myocardial recovery in diabetic ischemic heart disease.
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