Am. Wilkinson et al., 5-METHYLTETRAHYDROFOLATE LEVEL IN THE SERUM OF DEPRESSED SUBJECTS ANDITS RELATIONSHIP TO THE OUTCOME OF ECT, Journal of affective disorders, 32(3), 1994, pp. 163-168
Serum 5-MeTHF levels are reported in 26 subjects, before and after com
pleting a course of ECT, and compared to 21 healthy volunteers. 5-MeTH
F levels of depressed subjects were significantly lower than controls
before and after ECT. There was no difference in 5-MeTHF levels betwee
n ECT responders and non-responders but folate deficiency was related
to severity of depression before ECT. Serum 5-MeTHF was not related to
treatment response and values remained markedly low even after a good
response to treatment.