| Literature DB >> 17413010 |
Maureen Wallace1, Maya Frankfurt, Adolfo Arellanos, Tomoko Inagaki, Victoria Luine.
Abstract
Aged F344 female rats (21 months) showed decreased performance, as compared to young rats (4 months), on an object recognition memory task. Golgi impregnation measured dendritic spine density of pyramidal neurons in the prefrontal cortex (layer II-III), a brain area important for recognition memory. Densities of spines in aged rats were 16% lower in tertiary, apical dendrites, but not significantly different in secondary basal dendrites. Concurrent measures of memory and spine density in the young and aged subjects show that age-related declines in recognition memory are associated with decreased cortical spine density.Entities:
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Year: 2007 PMID: 17413010 DOI: 10.1196/annals.1379.026
Source DB: PubMed Journal: Ann N Y Acad Sci ISSN: 0077-8923 Impact factor: 5.691