Correlated inflammatory responses and neurodegeneration in peptide-injected animal models of Alzheimer's disease.

Abstract

Animal models of Alzheimer's disease (AD) which emphasize activation of microglia may have particular utility in correlating proinflammatory activity with neurodegeneration. This paper reviews injection of amyloid- β (A β ) into rat brain as an alternative AD animal model to the use of transgenic animals. In particular, intrahippocampal injection of Aβ 1-42 peptide demonstrates prominent microglial mobilization and activation accompanied by a significant loss of granule cell neurons. Furthermore, pharmacological inhibition of inflammatory reactivity is demonstrated by a broad spectrum of drugs with a common endpoint in conferring neuroprotection in peptide-injected animals. Peptide-injection models provide a focus on glial cell responses to direct peptide injection in rat brain and offer advantages in the study of the mechanisms underlying neuroinflammation in AD brain.

• Authors: James G McLarnon
• Journal: BioMed research international (Biomed Res Int) Vol. 2014 Pg. 923670 ( 2014) ISSN: 2314-6141 [Electronic] United States
• PMID: 24822221 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review)

Chemical References

• Amyloid beta-Peptides

Topics

• Alzheimer Disease (chemically induced, immunology, physiopathology)
• Amyloid beta-Peptides (administration & dosage)
• Animals
• Brain (immunology, physiopathology)
• Brain Chemistry
• Disease Models, Animal
• Rats