Jm. Wilson et al., CHOLINE-ACETYLTRANSFERASE ACTIVITY IS REDUCED IN RAT NUCLEUS-ACCUMBENS AFTER UNLIMITED ACCESS TO SELF-ADMINISTRATION OF COCAINE, Neuroscience letters, 180(1), 1994, pp. 29-32
Choline acetyltransferase (ChAT) activity was measured in discrete are
as of rat brain after chronic, unlimited access to self-administration
of cocaine. Mean activity of ChAT was reduced by approximately 30% in
the nucleus accumbens, both on the last day of cocaine access and aft
er 3 weeks cocaine withdrawal. These data suggest that chronic cocaine
exposure might inhibit nucleus accumbens cholinergic neurones which c
ould underlie some of the behavioral effects of cocaine.