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Cited by 280

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Imaging correlates of brain function in monkeys and rats isolates a hippocampal subregion differentially vulnerable to aging

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Small, Scott A., Chawla, Monica K., Buonocore, Michael, Rapp, Peter R., Barnes, Carol A.·2004·Proceedings of the National Academy of Sciences

Abstract

The hippocampal formation contains a distinct population of neurons organized into separate anatomical subregions. Each hippocampal subregion expresses a unique molecular profile accounting for their differential vulnerability to mechanisms of memory dysfunction. Nevertheless, it remains unclear which hippocampal subregion is most sensitive to the effects of advancing age. Here we investigate this question by using separate imaging techniques, each assessing different correlates of neuronal function. First, we used MRI to map cerebral blood volume, an established correlate of basal metabolism, in the hippocampal subregions of young and old rhesus monkeys. Second, we used in situ hybridization to map Arc expression in the hippocampal subregions of young and old rats. Arc is an immediate early gene that is activated in a behavior-dependent manner and is correlated with spike activity. Results show that the dentate gyrus is the hippocampal subregion most sensitive to the effects of advancing age, which together with prior studies establishes a cross-species consensus. This pattern isolates the locus of age-related hippocampal dysfunction and differentiates normal aging from Alzheimer's disease.

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Metadata

Authors
Small, S. A., Chawla, M. K., Buonocore, M., Rapp, P. R., & Barnes, C. A.
Venue
Proceedings of the National Academy of Sciences
Published
2004-04-26
Volume
101
Issue
18
Pages
7181-7186
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2140474748
Cited by
280
References
6
FWCI
6.08
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Imaging correlates of brain function in monkeys and rats isolates a hippocampal subregion differentially vulnerable to aging. https://app.cochat.ai/papers/10.1073/pnas.0400285101
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Small, S. A., Chawla, M. K., Buonocore, M., Rapp, P. R., & Barnes, C. A. (2004). Imaging correlates of brain function in monkeys and rats isolates a hippocampal subregion differentially vulnerable to aging. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0400285101

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