Journal
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
Volume 25, Issue 1, Pages 29-41Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0149-7634(00)00048-8
Keywords
interleukin-1 beta; memory consolidation; fear conditioning; stress; lipopolysaccharide; gp120; AIDS dementia; Alzheimer's disease
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Funding
- NIMH NIH HHS [MH4505, MH5528, MH00314] Funding Source: Medline
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Interleukin-1 beta(IL-1 beta), known to play a role in orchestrating the physiological and behavioral adjustments that occur during sickness, has also been shown to significantly influence memory consolidation. To support this assertion we present neurobiological evidence that the substrates for IL-1 beta to influence memory processing and neural plasticity exist. We then present behavioral evidence that central IL-1 beta administration and agents that induce central IL-1 beta activity impair the consolidation of memories that depend on the hippocampal formation but have no effect on the consolidation of hippocampal-independent memories. Further, we demonstrate that the impairments in hippocampal-dependent memory consolidation produced by agents that induce IL-1 beta activity are blocked by antagonizing the actions of IL-1 beta. Finally, we discuss these data in terms of their implications for a physiological role of IL-1 beta in memory consolidation processes and a potential role of IL-1 beta in producing memory impairments associated with stress, aging, Alzheimer's disease, and AIDS related dementia complex. (C) 2001 Elsevier Science Ltd. All rights reserved.
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