In the September American Journal of Geriatric Psychiatry, they reported that children who lost their mother during adolescence, or their father before age 5, had a higher risk for Alzheimer’s disease, an association that disappeared when the widowed parent remarried. Their findings were specific to Alzheimer’s disease and not found for other dementias. The researchers considered confounding factors including gender, education, APOE genotype, and socioeconomic status in their analysis.
Leading Alzheimer's disease experts have recently promulgated guidelines on how the disease should be defined and diagnosed. For more information, see Psychiatric News at http://pn.psychiatryonline.org/content/46/11/1.2.full.