Dr. Kristine Yaffe's Journal of the American Medical Association article has received international attention.
Yaffe, K., Weston, A., Graff-Radford, N. R.,
Satterfield, S., Simonsick, E. M., Younkin, s. G., Younkin, L. H., Kuller, L., Ayonayon, H. N., Ding, J., & Harris, T. B. (2011) Association of plasma β-amyloid level and cognitive reserve with subsequent cognitive decline. Journal of the American Medical Association, 305(3), 261-266.
See a sampling of major outlets that covered the story:
The New York Times
San Francisco Chronicle
Bloomberg Business Week
Voice of America