[The structure of the arteries at the base of the brain in young and adult dwarf goats. 2. Age-associated changes].
Age-associated changes in cerebral arteries of 6 years old pygmy goats were investigated quantitative-histologically. No atherosclerotic alterations could be observed. But age-related thickenings of the subendothelial lamina till to 7 microns were present. Beside a significant increases of the intima, also an increase of the media as also of some lumina could be seen. In relation to the increase of the arterial lumen, the increase of the media was more rapid. Apparently more intercellular substance is formed by the smooth muscle cell during age. These studies confirm only weak intimal thickenings of the cerebral arteries during ageing. They do not effect the blood supply of the brain.
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D000375:Aging / Q000473:pathology*; D000818:Animals; D002536:Cerebral Arteries / Q000473:pathology*; D006041:Goats / Q000033:anatomy & histology*; D012044:Regression Analysis
Struktur der Gehirnbasisarterien bei jungen und adulten zwergziegen. 2. Alternsveränderungen.