Linked Life Data

18619712

Source:http://linkedlifedata.com/resource/pubmed/id/18619712

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pubmed-article:18619712pubmed:abstractTextThe ApoE gene is expressed in olfactory brain structures and is believed to play a role in neuronal regenerative processes as well as in development of Alzheimer's disease (AD), the most common form of dementia. The varepsilon4 allele has been reported to be associated with compromised odor identification ability in the elderly, and this deficit has been interpreted as a sign of pre-diagnostic AD. However, because it has not been demonstrated that the relationship between the varepsilon4 allele and odor identification is mediated by dementia, it is possible that the varepsilon4 allele may have an effect on odor identification over and above any effects of dementia. The present study investigated effects of ApoE-status on odor identification in a large, population-based sample (n=1236) of adults (45-80 years), who were assessed for dementia at time of testing and 5 years later. The results showed that the varepsilon4 allele was associated with an odor identification deficit among elderly participants (75-80). Critically, this effect remained after current and pre-diagnostic dementia, vocabulary, global cognitive status and health variables were partialled out. The present results suggest that the ApoE gene plays a role in olfactory functioning that is independent of dementia conversion within 5 years.lld:pubmed
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pubmed-article:18619712pubmed:copyrightInfoCopyright (c) 2008 Elsevier Inc. All rights reserved.lld:pubmed
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pubmed-article:18619712pubmed:year2010lld:pubmed
pubmed-article:18619712pubmed:articleTitleOdor identification impairment in carriers of ApoE-varepsilon4 is independent of clinical dementia.lld:pubmed
pubmed-article:18619712pubmed:affiliationDepartment of Psychology, Umeå University, Umeå, Sweden. jonas.olofsson@psy.umu.selld:pubmed
pubmed-article:18619712pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:18619712pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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