Effects of Prolylendopeptidase Inhibitor Benzyloxycarbonyl-Methionyl-2(S)-Cyanopyrrolidine on Experimental Depressive Syndrome Development in Rats

Model of experimental depressive syndrome in rats induced by repeated systemic injection of proneurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine showed that chronic injection of prolylendopeptidase inhibitor benzyloxycarbonyl-methionyl-2(S)-cyanopyrrolidine 30 min before pro-neurotoxin injection prevents the development of a number of depressive syndrome symptoms such as behavioral despair and biorhythmic disorders in forced swimming test, precludes the increase in anxiety-phobic level, prevents reduction of relative thymus mass. These results indicate that benzyloxycarbonyl-methionyl-2(S)-cyanopyrrolidine possesses antidepressant, anxiolytic, and/antistress properties. Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 147, No. 1, pp. 27–31, January, 2009