The old animal as a model in research on brain aging and Alzheimer's disease/senile dementia of the Alzheimer type.
D000375:Aging / Q000473:pathology*; D000544:Alzheimer Disease / Q000473:pathology*; D000818:Animals; D001921:Brain / Q000473:pathology*; D004195:Disease Models, Animal; D009847:Olivary Nucleus / Q000473:pathology