Effects of apolipoprotein e on dementia and aging in the shanghai survey of dementia

R. KATZMAN, M.-Y. ZHANG, P. J. CHEN, N. GU, S. JIANG, T. SAITOH, X. CHEN, M. KLAUBER, R. G. THOMAS, W. T. LIU, E. S. H. YU

Research output: Journal PublicationsJournal Article (refereed)

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Abstract

We investigated the status of the apolipoprotein E allele in 538 participants in the incidence phase of the ongoing Shanghai Survey of Dementia, including 103 demented subjects, 72 with mild cognitive impairment and 363 cognitively normal. The apo E ε4 allele was present in 10.2% of control subjects and the allelic frequency did not change between ages 60 to 96 years. The apo E ε4 allelic frequency was increased both in those with Alzheimer's disease (AD) (25.4%) and those with vascular dementia (VaD) (22.2%), but not in those with other dementing illnesses or the cognitively impaired. All of the subjects homozygous for apo E ε4 were demented, three were diagnosed as having AD, and three met NINDS/AIREN criteria for VaD. The increased apo E ε4 allelic frequency in clinically diagnosed VaD patients suggests that some of the infarcts are secondary to congophilic angiopathy. The adjusted odds ratio of developing AD in this community-derived study for persons with at least one apo E ε4 allele was 4.1 (95% CI: 2.2, 7.7). Thus, the apo E ε4 risk of developing AD in this Chinese cohort is similar to that in western community studies.
Original languageEnglish
Pages (from-to)779-785
Number of pages7
JournalNeurology
Volume49
Issue number3
DOIs
Publication statusPublished - 1 Sep 1997
Externally publishedYes

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    KATZMAN, R., ZHANG, M-Y., CHEN, P. J., GU, N., JIANG, S., SAITOH, T., CHEN, X., KLAUBER, M., THOMAS, R. G., LIU, W. T., & YU, E. S. H. (1997). Effects of apolipoprotein e on dementia and aging in the shanghai survey of dementia. Neurology, 49(3), 779-785. https://doi.org/10.1212/WNL.49.3.779