The chick as a model for the study of the cellular mechanisms and potential therapies for Alzheimer's disease

Mileusnic, Radmila and Rose, Steven (2010). The chick as a model for the study of the cellular mechanisms and potential therapies for Alzheimer's disease. International Journal of Alzheimer's Disease, 2010 (In Press).

DOI: https://doi.org/10.4061/2010/180734

Abstract

While animal experiments have contributed much to our understanding of the mechanisms of Alzheimer's disease (AD), their value in predicting the effectiveness of treatment strategies in clinical trials has remained controversial. The disparity between the results obtained in animal models and clinical trials may in part be explained by limitations of the models and species-specific differences. We propose that one trial passive avoidance in the day old chick is a useful system to study AD because of the close sequence homologies of chick and human amyloid precursor protein (APP). In the chick, APP is essential for memory consolidation, and disrupting its synthesis or structure results in amnesia. RER, a tripeptide sequence corresponding to part of the growth domain of APP, can restore memory loss and act as a cognitive enhancer. We suggest that RER and its homologues may form the basis for potential pharmacological protection against memory loss in AD.

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