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CHANGES IN THE CONTENT OF DOPAMINE AND ITS METABOLITES IN THE BASAL GANGLIA FOLLOWING RIGHT MIDDLE CEREBRAL ARTERY OCCLUSION AND REFLOW IN MONKEYS
Author(s) -
Kuruvilla Alice,
Cherian Rebecca,
Theodore Deepa,
Abraham Jacob
Publication year - 1987
Publication title -
clinical and experimental pharmacology and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 103
eISSN - 1440-1681
pISSN - 0305-1870
DOI - 10.1111/j.1440-1681.1987.tb00952.x
Subject(s) - basal ganglia , occlusion , dopamine , homovanillic acid , medicine , basal (medicine) , striatum , middle cerebral artery , cerebral blood flow , endocrinology , ischemia , central nervous system , serotonin , receptor , insulin
SUMMARY 1. Focal ischaemia was produced experimentally in Macaca radiata monkeys by occlusion of middle cerebral artery (MCA). There was a lowering of the dopamine (DA) content of basal ganglia after 4 and 12 h of occlusion. 2. DA content was restored to normal in basal ganglia after restoration of blood flow. With the progress of time the DA content was increased above that of sham controls. Changes were also observed in the non‐occluded left basal ganglia. 3. The homovanillic acid (HVA) content was decreased significantly at 12 h after occlusion. After the onset of reflow, the HVA content of the right basal ganglia was higher than that of sham controls. 4. The 3, 4 dihydroxyphenylacetic acid (DOPAC) content of right basal ganglia was significantly decreased after 12 h occlusion. Reflow restored the level of DOPAC to normal within 1 h after removal of clip. 5. Discrete changes were also observed in the left basal ganglia at some of the time intervals.