The British Journal of Psychiatry 140: 268-273 (1982)
© 1982 The Royal College of Psychiatrists
Effect of ECT on the neuroendocrine response to apomorphine in severely depressed patients
JE Christie, LJ Whalley, NS Brown and H Dick
Animal studies have suggested that the mechanism of the antidepressant
action of ECT may be to increase monoaminergic post-synaptic receptor
sensitivity. We have tested this hypothesis in 12 drug-free patients
suffering from severe depression, 11 of whom had depressive delusions. The
responses of growth hormone, prolactin and cortisol to 0.75 mg subcutaneous
apomorphine were examined before and after a successful course of ECT.
There were no significant differences between hormonal measurements on the
two occasions, with the exception that basal plasma cortisol concentrations
were significantly lower following ECT and recovery from depressive
illness. These results do not support the hypothesis that ECT increases
dopaminergic post-synaptic receptor sensitivity.