PMID- 24287168 OWN - NLM STAT- MEDLINE DCOM- 20140917 LR - 20211021 IS - 1573-2517 (Electronic) IS - 0165-0327 (Print) IS - 0165-0327 (Linking) VI - 155 DP - 2014 Feb TI - Dopamine depletion attenuates some behavioral abnormalities in a hyperdopaminergic mouse model of bipolar disorder. PG - 247-54 LID - S0165-0327(13)00803-3 [pii] LID - 10.1016/j.jad.2013.08.041 [doi] AB - BACKGROUND: Patients with BD suffer from multifaceted symptoms, including hyperactive and psychomotor agitated behaviors. Previously, we quantified hyperactivity, increased exploration, and straighter movements of patients with BD mania in the human Behavioral Pattern Monitor (BPM). A similar BPM profile is observed in mice that are hyperdopaminergic due to reduced dopamine transporter (DAT) functioning. We hypothesized that dopamine depletion through alpha-methyl-p-tyrosine (AMPT) administration would attenuate this mania-like profile. METHODS: Male and female DAT wild-type (WT; n=26) and knockdown (KD; n=28) mice on a C57BL/6 background were repeatedly tested in the BPM to assess profile robustness and stability. The optimal AMPT dose was identified by treating male C57BL/6 mice (n=39) with vehicle or AMPT (10, 30, or 100mg/kg) at 24, 20, and 4h prior to testing in the BPM. Then, male and female DAT WT (n=40) and KD (n=37) mice were tested in the BPM after vehicle or AMPT (30mg/kg) treatment. RESULTS: Compared to WT littermates, KD mice exhibited increased activity, exploration, straighter movement, and disorganized behavior. AMPT-treatment reduced hyperactivity and increased path organization, but potentiated specific exploration in KD mice without affecting WT mice. LIMITATIONS: AMPT is not specific to dopamine and also depletes norepinephrine. CONCLUSIONS: KD mice exhibit abnormal exploration in the BPM similar to patients with BD mania. AMPT-induced dopamine depletion attenuated some, but potentiated other, aspects of this mania-like profile in mice. Future studies should extend these findings into other aspects of mania to determine the suitability of AMPT as a treatment for BD mania. CI - (c) 2013 Published by Elsevier B.V. FAU - van Enkhuizen, Jordy AU - van Enkhuizen J AD - Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA 92093-0804, United States; Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands. FAU - Geyer, Mark A AU - Geyer MA AD - Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA 92093-0804, United States; Research Service, VA San Diego Healthcare System, San Diego, CA, United States. FAU - Halberstadt, Adam L AU - Halberstadt AL AD - Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA 92093-0804, United States. FAU - Zhuang, Xiaoxi AU - Zhuang X AD - Department of Neurobiology, University of Chicago, Chicago, IL, United States. FAU - Young, Jared W AU - Young JW AD - Department of Psychiatry, University of California San Diego, 9500 Gilman Drive MC 0804, La Jolla, CA 92093-0804, United States; Research Service, VA San Diego Healthcare System, San Diego, CA, United States. Electronic address: jaredyoung@ucsd.edu. LA - eng GR - R01 DA002925/DA/NIDA NIH HHS/United States GR - R01 MH071916/MH/NIMH NIH HHS/United States GR - R01-MH071916/MH/NIMH NIH HHS/United States GR - R01-DA002925/DA/NIDA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20131116 PL - Netherlands TA - J Affect Disord JT - Journal of affective disorders JID - 7906073 RN - 0 (Dopamine Plasma Membrane Transport Proteins) RN - 658-48-0 (alpha-Methyltyrosine) RN - VTD58H1Z2X (Dopamine) SB - IM MH - Animals MH - Bipolar Disorder/*physiopathology MH - *Disease Models, Animal MH - Dopamine/*metabolism MH - Dopamine Plasma Membrane Transport Proteins/physiology MH - Exploratory Behavior/*physiology MH - Female MH - Male MH - Mice MH - Mice, Inbred C57BL MH - alpha-Methyltyrosine/administration & dosage PMC - PMC3924859 MID - NIHMS544837 OTO - NOTNLM OT - AMPT OT - Bipolar disorder OT - Dopamine transporter OT - Mania OT - Mice EDAT- 2013/11/30 06:00 MHDA- 2014/09/18 06:00 PMCR- 2015/02/01 CRDT- 2013/11/30 06:00 PHST- 2013/06/26 00:00 [received] PHST- 2013/08/12 00:00 [accepted] PHST- 2013/11/30 06:00 [entrez] PHST- 2013/11/30 06:00 [pubmed] PHST- 2014/09/18 06:00 [medline] PHST- 2015/02/01 00:00 [pmc-release] AID - S0165-0327(13)00803-3 [pii] AID - 10.1016/j.jad.2013.08.041 [doi] PST - ppublish SO - J Affect Disord. 2014 Feb;155:247-54. doi: 10.1016/j.jad.2013.08.041. Epub 2013 Nov 16.