Peter P. Zandi, PhD, lead author of the study and an assistant professor in the School's Department of Mental Health, said, "These results are extremely exciting. Our study suggests that the regular use of vitamin E in nutritional supplement doses, especially in combination with vitamin C, may reduce the risk of developing Alzheimer's disease."
The researchers examined data from the Cache County Study, which is a large, population-based investigation of the prevalence and incidence of Alzheimer's disease and other dementias. Residents who were 65 or older were assessed from 1996-1997 and again from 1998-2000. Study participants were asked at their first contact about vitamin usage. The researchers then compared the subsequent risk of developing Alzheimer's disease over the study interval among supplement users versus nonusers to come to their conclusions.
Approximately 17 percent of the study participants reported taking vitamin E or C supplements. These individuals were significantly more likely to be female, younger, better educated and reported better general health when compared to non-supplement users. In addition to those who took vitamin supplements, another 20 percent of study participants used multivitamins, but without a high dosage of vitamin E or C.
The researchers found a tren
Contact: Kenna Brigham
Johns Hopkins University Bloomberg School of Public Health