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Acta Neuropathol. 1999 Sep;98(3):295-303.

Microinfarction as a result of hypertension in a primate model of cerebrovascular disease.

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  • 1Department of Anatomy and Neurobiology, Boston University School of Medicine, MA 02118, USA. tkemper@cajal-1.bu.edu

Abstract

Ten adult cynomolgus monkeys were studied as a non-human primate model of hypertensive cerebrovascular disease. Seven were made hypertensive by surgical coarctation of the aorta and three served as unoperated controls. After survival periods of 8-30 months, the brains were serially sectioned and surveyed for neuropathological changes. The most conspicuous change was minute areas of microinfarction in the white and gray matter. The lesions were of irregular shape with an average maximum diameter of less than 0.5 mm. They were slightly larger in the gray than in the white matter and appeared to be of different ages. Their area of predilection was the white matter of the forebrain, with smaller numbers in the cerebral cortex and scattered lesions elsewhere in the forebrain, brain stem and cerebellum. These microinfarcts did not correspond to usually described lesions in the human brain in hypertension or in other animal models of hypertensive cerebrovascular disease. We suggest that they represent an early change in the natural history of hypertensive neuropathology.

PMID:
10483788
[PubMed - indexed for MEDLINE]
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