Search Results - (Author, Cooperation:M. E. Rice)

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  1. 1
    Staff View
    Publication Date:
    2014-05-30
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Antipsychotic Agents/pharmacology ; Behavior, Animal/drug effects/physiology ; Dopamine/*metabolism ; Electrical Synapses/genetics/ultrastructure ; Female ; Genotype ; Humans ; Male ; Membrane Proteins/*genetics/*metabolism ; Mice ; Nerve Tissue Proteins/*genetics/*metabolism ; Polymorphism, Single Nucleotide ; *Signal Transduction ; Synaptic Transmission/*genetics ; gamma-Aminobutyric Acid/*metabolism
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    RICE, M. E. ; NICHOLSON, C.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1986
    Staff View
    ISSN:
    1749-6632
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Natural Sciences in General
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  3. 3
    Staff View
    ISSN:
    1432-1106
    Keywords:
    Dopamine release ; Fast-scan cyclic voltammetry ; Mid-brain ; 5-Hydroxytryptamine Guinea-pig
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract Fast-scan cyclic voltammetry with carbon fibre microelectrodes was used to detect endogenous dopamine (DA) and 5-hydroxytryptamine (5-HT) release from three distinct regions of guinea-pig mid-brain in vitro: rostral and caudal substantia nigra (SN) and the ventral tegmental area (VTA). Previous electrophysiological studies have demonstrated that cells of the caudal SN and the VTA have similar characteristics, whereas cells in the rostral SN have distinctly different properties. In the present study, we confirmed that each region has tyrosine hydroxylase-positive neurons and determined, using high-performance liquid chromatography, that DA levels were similar in rostral and caudal SN, but lower in SN than in VTA. In each region, application of veratrine, which was shown by intracellular recordings to have a reversible depolarising action, evoked a signal attributable to DA and distinguishable from that of 5-HT. Release signals were monitored every 250 ms with a spatial resolution of less than 50 μm. DA release was calcium-dependent and was not detectable in a catecholamine-poor area such as the cerebellum, or in mid-brain tissue pre-treated with reserpine. Within the normal mid-brain, the amount of DA released was correlated with tissue content in that it was higher in the VTA than in either region of SN. It is concluded that DA released from somato-dendritic parts of mid-brain neurons exhibits site-specific variation. This is the first report of direct monitoring of DA and 5-HT relase from these regions with in situ electrodes and demonstrates the utility of fast-scan cyclic voltammetry to investigate the mechanisms and possible non-classical functions of somato-dendritic DA release.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses