[Reaction of the brain capillaries to hypoxia in cats].
Using calcium-adenosinetriphosphate histoangiological method of Chilingarian, the morpho-functional characteristics of capillary section of microcirculatory bed were studied in cat's brain and dura mater following experimental hypoxia. Analysis of morphometric data has shown that short-term hypoxia resulted in dilation of brain capillary lumen by 15% in comparison with that in intact animals. Average diameter of dura mater capillaries was found to vary within the limits of control values. Dilation of brain capillaries should be considered as a compensatory-adaptational change aimed at maintenance of metabolic regulation of cerebral circulation.
Laboratory of Histochemistry and Neuromorphology, L.A. Orbeli Institute of Physiology, Armenian National Academy of Sciences, Yerevan.
N N
NN
Melkonian
I B
IB
Meliksetian
D000818:Animals; D001921:Brain / Q000098:blood supply / Q000473:pathology*; D002196:Capillaries / Q000473:pathology; D002415:Cats; D000860:Hypoxia / Q000473:pathology* / Q000503:physiopathology; D018613:Microscopy, Confocal