| Spatial learning is affected by transient occlusion of common carotid arteries (2VO): comparison of behavioural and histopathological changes after '2VO' and 'four-vessel-occlusion' in rats. | |
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MedLine Citation:
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PMID: 2290611 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Place learning in the Morris water maze following transient (24 min) occlusion of the common carotid arteries (2VO), and following permanent occlusion of both vertebral arteries plus transient (20 min) clamping of the carotids (4VO) was investigated in rats 6-9 days after occlusion. Both 2VO and 4VO treatment increased the latency to find the hidden platform during escape trials; spatial bias, tested in a probe trial, was decreased. Histological analysis revealed neural necrosis in the CA1 sector of the hippocampus in 4VO rats but not in 2VO animals. The data suggest that an experimentally induced reduction in cerebral blood flow of 50% (after 2VO) or 95% (after 4VO) produces persistent functional changes even in absence of actual neural damage. |
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Authors:
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R M Jaspers; F Block; C Heim; K H Sontag |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neuroscience letters Volume: 117 ISSN: 0304-3940 ISO Abbreviation: Neurosci. Lett. Publication Date: 1990 Sep |
Date Detail:
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Created Date: 1991-04-01 Completed Date: 1991-04-01 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7600130 Medline TA: Neurosci Lett Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 149-53 Citation Subset: IM |
Affiliation:
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Department of Pharmacology, Max Planck Institute for Experimental Medicine, Göttingen, F.R.G. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Carotid Arteries / physiology* Cerebrovascular Circulation Escape Reaction Hippocampus / pathology, physiology* Learning* Male Pyramidal Tracts / pathology, physiology Rats Rats, Inbred Strains Space Perception* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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