The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in PubMed. This abstract is what is used to create the fingerprint of the publication. If any grants are referenced by the publication, they will be listed here as well.
Evaluation of muscarinic M2 receptor sites in basal forebrain and brainstem cholinergic systems of behaviorally characterized young and aged Long-Evans rats.
T M Gill; M Gallagher (Profiled Author: Michela Gallagher)
Department of Psychology, University of North Carolina, Chapel Hill 27599, USA.
Neurobiology of aging 1998;19(3):217-25.
Aged (23-25-month-old) male Long-Evans rats were assessed for deficits in spatial cognition relative to young (4-6-month-old) rats. An in vitro autoradiography study was then conducted for muscarinic M2 sites using [3H]AF-DX 384 to assess binding in basal forebrain and brainstem areas where cholinergic neurons are localized. The analysis of basal forebrain included the medial septal/diagonal band region that provides cholinergic innervation of the hippocampus; the laterodorsal tegmental nucleus and pedunculopontine tegmental nucleus were analyzed in the brainstem. A significant age-related reduction in M2 binding was found in both the basal forebrain and brainstem. Only the reduction in the basal forebrain, however, was correlated with spatial learning impairment. Although the basal forebrain and brainstem cholinergic systems are each vulnerable in normal aging, contributions to the behavioral effects of aging may be distinctive for the two systems.
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