Slide 15 of 21
Notes:
Possible risk factors are those suspected of being linked somehow to Ad, but the linkage has not been proven. Weak or strong associations with AD may be attributed to a complex number of factors still unidentified. In the meantime, possible risk is asso
Genetic Factors - Scientists believe that genetic factors may be involved in more than half of the cases of AD. ApoE may be very important. Everyone has ApoE which helps carry cholesterol in the blood. However, the function of ApoE in the brain is less
Viruses- Some scientist think that a virus may cause AD. There are extensive studies going on to determine what changes these viruses may cause to the brain. (National Association of Area Agency of Aging, 1995)
Environmental factors - See next page.
