期刊
BRAIN RESEARCH
卷 859, 期 1, 页码 157-166出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0006-8993(00)01999-5
关键词
rat; neuroinflammation; spatial memory; rough endoplasmic reticulum; ultrastructural analysis
资金
- NIA NIH HHS [AG10546] Funding Source: Medline
We investigated the ultrastructural, immunohistochemical, biochemical and behavioral effects of chronic neuroinflammation in young rats produced by injection of lipopolysaccharide (LPS) into the 4th ventricle. The 37-day infusion of LPS impaired spatial memory but not object recognition ability. Electron microscopic studies of neurons within the hippocampus identified numerous paired cisternae of the rough endoplasmic reticulum (RER) and other ultrastructural changes that suggested impaired or reduced synthesis of cellular proteins within the cytoplasm. Immunohistochemical staining found numerous highly activated microglia distributed throughout the cingulate gyrus, entorhinal cortex, hippocampus and dentate gyrus. This animal model may be useful to test potential pharmacotherapies that are directed at the prevention of the cytotoxic consequences of chronic neuroinflammation associated with normal aging or Alzheimer's disease. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
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