Abstract
Cerebral blood flow in the rat was monitored by a venous outflow technique with an extracorporeal circulation, which allows for the continuous recording of flow over periods of several hours. The adenosine deaminase inhibitors erythro-9-(2-hydroxy-3-nonyl)adenine (EHNA) (1.0-100 micrograms/kg) and deoxycoformycin (0.1-1 micrograms/kg) potentiated the reactive hyperemia elicited by a brief (24-s) anoxic challenge. Basal flow rate was unaltered by EHNA administration and slightly enhanced by deoxycoformycin. The results are consistent with the hypothesis that adenosine plays a significant role in cerebral vascular regulation and suggest that low doses of these deaminase inhibitors may be useful in the treatment of cerebral vascular insufficiency.
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Schedule a callMore From: Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism
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