While many of the above-named immunological parameters have been investigated in GCA, only acute-phase reactants were investigated as potential biomarkers for AD in GCA but there are no or limited data for IFN, IP-10, IL, TNF-α, PDGF, sICAM-1, and selectins [5, 7, 12]. The gene discussed is IFNA1; the disease is Alzheimer disease.