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Eur J Pharmacol. 2000 Jan 28;388(2):R3-4.

LY354740 affects startle responding but not sensorimotor gating or discriminative effects of phencyclidine.

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CNS Research, Bayer, Aprather Weg 18, D-42096, Wuppertal, Germany.


LY354740 ┬┐(1S,2S,5R,6S)-2-aminobicyclo[3.1.0]hexane-2, 6-dicarboxylate monohydrate┬┐, a selective group II metabotropic glutamate (mGlu) receptor agonist, was recently reported to attenuate the behavioral effects of phencyclidine (PCP) in rats. In the present study, LY354740 failed to attenuate the discriminative stimulus properties of PCP and its disruption of prepulse inhibition of the acoustic startle response, at a dose range which decreased startle responding. The suggestion that mGlu group II receptor activation induces antipsychotic effects may be premature.

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