Abstract: | Reactions of the glia and blood vessels in the sensomotor cortex of adult rats to intraperitoneal injection of angiotensin II were studied electron-microscopically. Repeated injections of the hormone led to edema of increasing severity of the astrocytes, constriction of the lumen of the capillaries, and changes in the structure of their endothelium. It is suggested that these disturbances may be the cause of the cerebrovascular insufficiency and of functional changes in the CNS.Laboratory of Morphology of the Central Nervous System and Laboratory of Experimental Pathology and Therapy of Higher Nervous Activity, Institute of Higher Nervous Activity and Neurophysiology, Academy of Sciences of the USSR, Moscow. (Presented by Academician of the Academy of Medical Sciences of the USSR V. S. Rusinov.) Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 88, No. 11, pp. 615–617, November, 1979. |