Recent studies published by Zhang et al. (2010) showed significant increases of ZnT-1, ZnT-3, ZnT-4, ZnT-6, and ZnT-7 in the hippocampus and neocortex of APPswe/PS1dE9 transgenic mice which corresponding to a form of early onset AD. This evidence concerns the gene SLC30A3 and Alzheimer disease.