Acetyl coenzyme A in the brain: radioenzymatic determination, use of microwaves, and postmortem changes.

The content of acetyl-CoA in the brain of adult rats is higher in experiments with decapitation followed by immediate freezing of the head in liquid N 2 than in those using microwave irradiation; it is suggested that the increase occurs during the period of ischemia between decapitation and the fall of brain temperature below the freezing point.