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Functional Analysis of the Roles of Direct and Indirect Pathways by Using Immunotoxin-mediated Cell Targeting Approach Ryoji Fukabori 1 , Kazuto Kobayashi 1 1Department of Molecular Genetics,Institute of Biomedical Sciences,Fukushima Medical University School of Medicine Keyword: basal ganglia , striatum , motor control , dopamine transmission , immunotoxin cell targeting pp.412-418
Published Date 2009/4/1
DOI https://doi.org/10.11477/mf.1416100466
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Abstract

 The neural circuit connecting the cerebral cortex and the basal ganglia mediates a variety of brain functions including voluntary movement,motor learning,and reinforcement learning. These functions are dependent on midbrain dopamine systems that innervate the prefrontal cortex and the striatum. The pathogenesis of certain neurological and neuropsychiatric diseases involves the dysfunction of these dopamin systems; some of these diseases include Parkinson's disease,schizophrenia,and attention deficit hyperactivity disorder. To understand the physiology and pathology of brain functions,the mechanisms of neural circuitry that controls behaviors should be studied. Immunotoxin-mediated cell targeting is an approach employed in transgenic animals to eliminated specific neuronal types from a neuronal circuitry. This approach has been used to study the neural circuit mechanism in the central and peripheral nervous systems. Here,we describe the use of immunotoxin-mediated cell targeting for studying the neural circuitry that underlies the motor behavior demonstrated in response to systemic dopamine stimulation; further,we propose the potential mechanism that controls direct and indirect striatal pathway-dependent behavior.


Copyright © 2009, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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