Having this type of gene variant , APOE e4 , increases 1 % risk of Alzheimer 's . People with APOE e4 gene variant show declines beginning in their 50s . APOE gene therapy is only recommended for people with mild mental functions .
Having one copy of gene variant , APOE e4 , means 29 percent risk of Alzheimer 's . People with APOE e4 gene variant showed declines beginning in their 50s . APOE gene testing is only recommended for people with mild mental functions .