title: Memory function in a mouse genetic model of Alzheimer's disease.
abstract: The E4 allele of the apolipoprotein E (ApoE) gene has been identified as a major risk factor for the development of late onset Alzheimer's disease (AD). However, the mechanisms by which this gene affects AD are not fully understood. Studies of ApoE knock-out (ApoE KO) mice have revealed an exacerbation of two major pathologies that are diagnostic of AD: neurofibrillary tangles and senile plaques. However, evidence as to whether these mice have cognitive deficits is not yet conclusive. This ambiguity may arise partly from confounds associated with reliance on limited memory models, primarily, the Morris water maze task. An 8-arm radial maze task was therefore used to measure spatial memory in the ApoE KO mice, compared to controls over time. Furthermore, the effectiveness of a combination antioxidant therapy (CAT), designed to slow down the progression of AD based on concepts of oxidative stress and inflammatory processes underlying the pathology, was tested on memory ability. A significant strain difference was observed with the ApoE KO mice performing better than controls in terms of reference memory and corrects entries. No significant strain difference was observed for performance in terms of working memory errors. No significant effect of the CAT supplementation was observed.
authors: Centre of Excellence for Alzheimer's Disease Research and Care, Edith Cowan University, Perth, WA, Australia.
authors: Avdesh
authors: A
authors: Avdesh
authors: Patrick
authors: P
authors: Wong
authors: Ralph N
authors: RN
authors: Martins
authors: Mathew T
authors: MT
authors: Martin-Iverson
mesh_terms: D000544:Alzheimer Disease / Q000150:complications* / Q000178:diet therapy / Q000235:genetics; D000704:Analysis of Variance; D000818:Animals; D000975:Antioxidants / Q000008:administration & dosage; D001057:Apolipoproteins E / Q000172:deficiency; D004195:Disease Models, Animal; D008297:Male; D018782:Maze Learning; D008569:Memory Disorders / Q000209:etiology* / Q000235:genetics / Q000517:prevention & control; D051379:Mice; D008810:Mice, Inbred C57BL; D018345:Mice, Knockout; D016874:Neurofibrillary Tangles / Q000235:genetics / Q000473:pathology; D058225:Plaque, Amyloid / Q000235:genetics / Q000473:pathology; D011930:Reaction Time / Q000502:physiology
chemical_list: D000975:Antioxidants; D001057:Apolipoproteins E