TY - JOUR T1 - TRyptophan depletion in stable lithium-treated patients with bipolar disorder in remission AU - Benkelfat C, Seletti B, Palmour RM, Hillel J, Ellenbogen M, Young SN Y1 - 1995/02/01 N1 - 10.1001/archpsyc.1995.03950140072010 JO - Archives of General Psychiatry SP - 154 EP - 155 VL - 52 IS - 2 N2 - Delgado et al1 have reported that acute tryptophan depletion reversed antidepressantinduced remission in patients with major depression; the reappearance of depressive symptoms was more often observed in depressed patients treated with serotonergic antidepressants. In their study, five of the 21 patients investigated were treated with a combination of antidepressant (desipramine hydrochloride, fluvoxamine) and lithium carbonate. We adopted a similar paradigm to investigate the extent to which the same effect would be seen in patients with affective disorder who were treated with lithium only. Clinically, lithium displays a unique pharmacological profile: weak intrinsic antidepressant properties, useful as an augmenting agent to potentiate the effectiveness of other antidepressants, antimanic, and mood stabilizer. The molecular effects mediating these various pharmacological properties are complex and almost certainly involve multiple neurotransmitters, transduction mechanisms, and/or second messenger systems. One current theory is that lithium exerts some of its therapeutic effects, ie, potentiation of antidepressant treatments SN - 0003-990X M3 - doi: 10.1001/archpsyc.1995.03950140072010 UR - http://dx.doi.org/10.1001/archpsyc.1995.03950140072010 ER -