Wow this Seems to help the Prana Metal theory.

http://www.physorg.com/news176576620.htm...

To investigate the possibility that metals might be the cause of one of the disease's most debilitating symptoms, Leskovjan and her research advisor, Lisa Miller worked with University of Chicago scientist Tony Lanzirotti to examine the metal content of mouse Aβ plaques.

The researchers used an x-ray fluorescence microscope at NSLS beamline X26A to determine the metal concentration in plaques and surrounding non-plaque tissue taken from mice representing end-stage Alzheimer's disease. Fourier transform infrared microspectroscopy at beamline U10B also was used to normalize the data for the amount of protein in each plaque. They then compared the metal levels to previously collected data taken from human brains.