Memory, mood, dopamine, and serotonin in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-lesioned mouse model of basal ganglia injury

NEUROBIOLOGY OF DISEASE

卷:32

Article

Vuckovic, Marta G.^1,2  Wood, Ruth I.³  Holschneider, Daniel P.^3,4  Abernathy, Avery¹  Togasaki, Daniel M.¹  Smith, Alexandra¹  Petzinger, Giselle M.¹  Jakowec, Michael W.^1,3 

[1] Univ So Calif, Dept Neurol, George & MaryLou Boone Ctr Parkinsons Dis Res, Los Angeles, CA 90033 USA

[2] Univ So Calif, Grad Program Neurosci, Los Angeles, CA 90033 USA

[3] Univ So Calif, Dept Cell & Neurobiol, Los Angeles, CA 90033 USA

[4] Univ So Calif, Dept Psychiat & Behav Sci, Los Angeles, CA 90033 USA

关键词: Affective behavior;    MPTP;    Parkinson's disease;    Anxiety;    Depression;    Conditioned fear;   

DOI  :  10.1016/j.nbd.2008.07.015

来源: Elsevier

【 摘 要 】

The 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned mouse serves as a model of basal ganglia injury and Parkinson's disease. The present study investigated the effects of MPTP-induced lesioning on associative memory, conditioned fear, and affective behavior. Male C57BL/6 mice were administered saline or MPTP and separate groups were evaluated at either 7 or 30 days post-lesioning. In the social transmission of food preference test, mice showed a significant decrease in preference for familiar food 30 days post-MPTP compared to controls. Mice at both 7 and 30 days post-MPTP lesioning had increased fear extinction compared to controls. High Performance Liquid Chromatography analysis of tissues homogenates showed dopamine and serotonin were depleted in the striatum, frontal cortex, and amygdala. No changes in anxiety or depression were detected by the tail suspension, sucrose preference, light-dark preference, or hole-board tests. In conclusion, acute MPTP lesioning regimen in mice causes impairments in associative memory and conditioned fear, no mood changes, and depletion of dopamine and serotonin throughout the brain. (C) 2008 Elsevier Inc. All rights reserved.

【 授权许可】

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