using experimental cerebral ischemia induced in rats with 4-vessel occlusion , the effects of 2-hour ischemia ( ligation group ) and 30-minute ischemia followed by 72-hour reperfusion ( reperfusion group ) on cholinergic system ( chs ) was investigated with acetylcholine receptor ( achr ) , choline acetyltransferase ( cat ) and acetylcholine esterase ( ache ) as indicators of chs in seven sections of the brain .
C0007785
cerebral ischemia
C0006104
brain