Author:
Anversa P,Melissari M,Tardini A,Olivetti G
Abstract
The left coronary artery of 21-, 28-, and 45-day-old spontaneously hypertensive rats and Wistar-Kyoto rats was analyzed morphometrically to evaluate the structural alterations of the vessel wall during the development of genetically determined hypertension. In 45-day-old rats, hypertension was associated with a significant expansion of the partial volume of collagen and ground substance (119%) within the arterial wall. This change exceeded the concurrent accumulation of elastin (77%) and smooth muscle cell mass (34%). The growth of the muscle compartment was also characterized by a marked increment of rough endoplasmic reticulum (103%). The increase in the mural concentration of fibrous proteins at this early age may be viewed as the initial adverse effect of hypertension on muscular arteries.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Cited by
12 articles.
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