What Is the APOE Gene? How APOE e4 Affects Alzheimer’s and Dementia Risk

APOE e4 carriers have 3–15x higher Alzheimer’s risk depending on copies. But e4 is not a diagnosis — and the protective e2 allele cuts risk in half. Here’s what your APOE genotype means.

Category: Research · By GenomeNarrator Team · 8 min read

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