Scientists from University of South Florida and University of Kentucky published their study results on-line in the journal Alzheimer's Disease and Associated Disorders.
Among participants who became demented before death or had evidence of Alzheimer's disease at autopsy, those with small head sizes had significantly lower educational achievement in earlier adult life. In those dying without a dementia diagnosis or autopsyevidence of Alzheimer's disease, head size had no relationship with education.
Adult head size can be used to estimate the size of the fully-developed brain. Previous studies have found that clinical expression of Alzheimer's disease is related to head size, with people having smaller heads more likely to show the characteristic symptoms of this illness. Larger brains provide reserve against Alzheimer's, allowing people to function normally despite having considerable Alzheimer pathology in their brains.
"Although it has been known for many years that individuals with lower education have a greater risk of getting Alzheimer's, this is the first report showing that reduced educational attainment may actually be an early sign of the underlying disease."
The study findings add to others showing that individuals who will eventually develop Alzheimer's differ from those who don't many decades before.
Other studies have shown that those who develop Alzheimer's have specific deficits on tests of memory and thinking decades before the disease is diagnosed.
he fact that subtle signs of Alzheimer's appear many years before symptoms appear may be useful for predicting who is at risk of the illness and identifying individuals earlier in life who could benefit from preventive therapies, said the research team.
Besides, If you have any question about health or health care for obesity and acupuncture lose weight,contact with our experts for detailed consultation,please click herehttp://net.zoosnet.net/LR/Chatpre.aspx?id=NET39826137
