PMID- 12586455 OWN - NLM STAT- MEDLINE DCOM- 20030507 LR - 20190815 IS - 0006-3223 (Print) IS - 0006-3223 (Linking) VI - 53 IP - 4 DP - 2003 Feb 15 TI - Valproate attenuates hyperactive and perseverative behaviors in mutant mice with a dysregulated dopamine system. PG - 352-9 AB - BACKGROUND: Dopamine transporter (DAT) knockdown (KD) mice, with approximately 90% loss of expression of the DAT, allow for the examination of the behavioral consequences of a chronically dysregulated dopamine system. The DAT KD mice have hyperdopaminergic tone, are hyperactive, and show impaired response inhibition in a number of paradigms. We hypothesized that the DAT KD mice would also display deficits in prepulse inhibition (PPI) and would be perseverative in their locomotor behavior. METHODS: Basal levels of PPI and patterns of locomotor behavior were measured in two cohorts of DAT KD mice. In addition, measurements of locomotor behavior were recorded after pretreatment with 100 mg/kg valproate in both DAT KD and wildtype mice. RESULTS: The DAT KD mice were hyperactive and displayed perseverative motor behavior but had normal levels of PPI. The clinically effective antimania drug valproate significantly attenuated the hyperactivity and perseverative locomotor behavior in the DAT KD mice and had no effect in control mice. CONCLUSIONS: The DAT KD mice appear to provide a model of some aspects of manic behavior. With limited models of bipolar disorder, the DAT KD mice might provide a vehicle to screen for new psychiatric therapies to treat mania and its related symptoms. FAU - Ralph-Williams, Rebecca J AU - Ralph-Williams RJ AD - Alcohol and Drug Abuse Research Center, Harvard Medical School and McLean Hospital, Belmont, Massachusetts, USA. FAU - Paulus, Martin P AU - Paulus MP FAU - Zhuang, Xiaoxi AU - Zhuang X FAU - Hen, Rene AU - Hen R FAU - Geyer, Mark A AU - Geyer MA LA - eng GR - DA02925/DA/NIDA NIH HHS/United States GR - F31-MH12806/MH/NIMH NIH HHS/United States GR - MH42228/MH/NIMH NIH HHS/United States GR - MH61326/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Biol Psychiatry JT - Biological psychiatry JID - 0213264 RN - 0 (Antimanic Agents) RN - 0 (Dopamine Plasma Membrane Transport Proteins) RN - 0 (Membrane Glycoproteins) RN - 0 (Membrane Transport Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (Slc6a3 protein, mouse) RN - 0 (Slc6a3 protein, rat) RN - 614OI1Z5WI (Valproic Acid) RN - VTD58H1Z2X (Dopamine) SB - IM MH - Animals MH - Antimanic Agents/*pharmacology MH - Behavior, Animal/*drug effects MH - Dopamine/*genetics/*physiology MH - Dopamine Plasma Membrane Transport Proteins MH - Dose-Response Relationship, Drug MH - Hyperkinesis/*drug therapy/genetics/*psychology MH - Male MH - *Membrane Glycoproteins MH - Membrane Transport Proteins/genetics MH - Mice MH - Mice, Knockout MH - Motor Activity/drug effects MH - Mutation/physiology MH - *Nerve Tissue Proteins MH - Phenotype MH - Rats MH - Reflex, Startle/*drug effects/*genetics MH - Valproic Acid/*pharmacology EDAT- 2003/02/15 04:00 MHDA- 2003/05/08 05:00 CRDT- 2003/02/15 04:00 PHST- 2003/02/15 04:00 [pubmed] PHST- 2003/05/08 05:00 [medline] PHST- 2003/02/15 04:00 [entrez] AID - S0006322302014890 [pii] AID - 10.1016/s0006-3223(02)01489-0 [doi] PST - ppublish SO - Biol Psychiatry. 2003 Feb 15;53(4):352-9. doi: 10.1016/s0006-3223(02)01489-0.