View All. A bubbly, high-energy foodie who started her broadcast career while serving in the Air Force, Sunny Anderson lives up to her first name. She's become a favorite host of several shows on the Food Network, and has done it all while living with ulcerative colitis, one form of inflammatory bowel disease (IBD). Sunny's Culinary Influences
The causes of late-onset Alzheimer's are not yet completely understood, but they likely include a combination of genetic, environmental, and lifestyle factors that affect a person's risk for developing the disease. Researchers have not found a specific gene that directly causes the late-onset form of the disease.
The work was funded by NIH's National Institute on Aging (NIA) and National Human Genome Research Institute (NHGRI), as well as by 18 other international public and private organizations. We do not fully understand what causes Alzheimer's disease, but we know that genetic factors can play a role, says NIA director Richard J. Hodes. M.D. Scientists have previously identified three genes, variants of which can cause early onset Alzheimer's, and one that increases risk for the late onset form.