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The Genetics of Alzheimer’s DiseaseThe Jackson Laboratory, Bar Harbor, ME, pac{at}jax.org The genetics of Alzheimer’s disease is produced by 3 essentially interactive gene groups: (1) APP and presenilin 1 and 2; (2) APOE E2, E3, and E4; (3) genes on chromosomes 9, 10, 12, etc. If any gene in (1) mutates, beta amyloid (Aß) increases sharply beyond what the genes of (3) can remove, with early-onset Alzheimer’s disease the result. With retention of Aß by E4 in (2), Alzheimer’s disease might result even though (1) and (3) are normal. If any gene in (3) mutates, the level of Aß will rise, but because many genes are involved in Aß removal, late-onset Alzheimer’s disease would be detected only eventually.
Key Words: interaction • gene activity • gene groups • physiologic balance • normal state vs mutation
American Journal of Alzheimer's Disease and Other Dementias®, Vol. 22, No. 1,
37-41 (2007) This article has been cited by other articles:
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