A decreased survival of proliferated cells in the hippocampus is associated with a decline in spatial memory in aged rats

Henny Wati, Koutaro Kudo, Chunxiang Qiao, Toshihide Kuroki, Shigenobu Kanba

研究成果: Contribution to journalArticle査読

36 被引用数 (Scopus)

抄録

In aged rats, although learning and memory impairment is prominent, both the number of granular cells and the degree of neuronal progenitor proliferation in the hippocampus are known to be preserved. We examined the association between the survival of newly generated neurons in the hippocampus and the learning ability in aged rats. By using BrdU, a cell proliferation marker to determine neurogenesis and contextual fear conditioning to determine learning ability, we found that in aged rats, along with memory impairment, the survival of both the proliferated cells at baseline and those enhanced by contextual fear conditioning decreased remarkably. These results suggest that the integration of newly generated neurons into hippocampal circuitry is decreased with aging, this phenomenon may, in part, explain the decline in learning and memory in aged rats.

本文言語英語
ページ(範囲)171-174
ページ数4
ジャーナルNeuroscience Letters
399
1-2
DOI
出版ステータス出版済み - 5 15 2006

All Science Journal Classification (ASJC) codes

  • 神経科学(全般)

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