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The finer intramyocardial vasculature in various forms of experimental cardiac hypertrophy. ACTA PATHOLOGICA ET MICROBIOLOGICA SCANDINAVICA. SECTION A, PATHOLOGY 2009; 80:329-40. [PMID: 5045412 DOI: 10.1111/j.1699-0463.1972.tb00287.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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The size of human coronary arteries depending on the physiological and pathological growth of the heart, the age, the size of the supplying areas and the degree of coronary sclerosis. A postmortem study. VIRCHOWS ARCHIV. A, PATHOLOGICAL ANATOMY AND HISTOLOGY 1982; 397:37-59. [PMID: 7147698 DOI: 10.1007/bf00430892] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Long-term effects of hypertension on the rat aortic wall and their relation to concurrent aging changes. Morphological and chemical studies. Circ Res 1972; 30:301-9. [PMID: 5060432 DOI: 10.1161/01.res.30.3.301] [Citation(s) in RCA: 253] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The effects of long-term (16 months) hypertension on the thoracic aorta of male rats were compared to previously reported short-term (2.5 months) changes and to concurrent aging changes. Hypertension was produced by clipping a renal artery. Although short-term hypertension was characterized by a disproportionate increase in noncollagenous alkali-soluble proteins, which have been attributed primarily to vascular smooth muscle, with long-term hypertension there was no further increase in these proteins but instead there were striking increases in mural accumulations of elastin and collagen. Chronically elevated wall tension in hypertensive vessels was associated with a progressive increase in wall thickness which resulted in a value for wall stress no different from that of control vessels. Concurrent aging changes were qualitatively similar to, but much less pronounced than, those seen with hypertension and were attributed to an increase in wall tension in controls resulting from a combination of significant increases in diameter and systolic blood pressure with age. This study of the interaction of vessel structure and function has revealed common features of what appears to be a diverse group of vascular alterations.
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