Alzheimer’s Association recognizes Li Gan with Inge Grundke-Iqbal Award for Alzheimer’s Research The Alzheimer's Association is recognizing Li Gan, Ph.D., for publishing influential study on the biology of Alzheimer's disease with the Inge Grundke-Iqbal Award for Alzheimer's Analysis viagra naturel pour homme .C. Dr. Gan receives the award for a paper reporting on a study that found the proteins progranulin may protect against the accumulation of amyloid, among the hallmark brain changes of Alzheimer's disease, in mouse models of Alzheimer's.