Journal
NEUROSCIENCE LETTERS
Volume 279, Issue 3, Pages 133-136Publisher
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(99)00972-6
Keywords
alpha-2 macroglobulin; Alzheimer's disease; family association; APOE-epsilon 4; odds ratio; complex disease genetics; Caribbean Hispanics
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Funding
- NIA NIH HHS [AG15473, AG08702] Funding Source: Medline
- NIGMS NIH HHS [GM55978] Funding Source: Medline
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The association between polymorphisms in the alpha-2-macroglobulin (alpha 2m) gene and Alzheimer's disease remains in doubt because of conflicting results in independent case-control and family studies. We examined the association between Alzheimer's disease and alpha 2m polymorphisms in Caribbean Hispanic families. The odds of having the alpha 2m deletion/insertion polymorphism was increased 3-fold for family members with Alzheimer's disease compared to healthy family members, rising to 5-fold after adjusting for APOE-epsilon 4. In contrast, there was no relationship between the alpha 2m Val1000lle polymorphism and Alzheimer's disease in these families. The inconsistencies in studies cited above and the modest association between alpha 2m and Alzheimer's disease found in the Caribbean Hispanic families reported here, suggest that the overall effect of this gene on susceptibility is small and may be limited to certain populations or families. (C) 2000 Published by Elsevier Science Ireland Ltd. All rights reserved.
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