In the study to be published in Thursday's New England Journal of Medicine, Gary Small and his colleagues discovered that the chemical allowed doctors to pick out which of 83 volunteers had Alzheimer's, which had mild memory problems, and which were functioning normally for their age. It was 98 percent accurate in determining the difference between Alzheimer's and mild cognitive impairment.

(First posted Jan. 5, 2007 5:44 pm)

University of South Florida researchers report that a novel needle-free vaccine approach is effective and safe in clearing brain-damaging plaques from a mouse model of Alzheimer's disease. The transdermal, or across the skin, vaccination, may offer a simpler way of preventing or treating the devastating neurodegenerative disease with less likelihood of adverse immune reactions.

(First posted Jan. 23, 2007 11:51 am)