The contents of total tau (detected by the Tau5 antibody), non-phosphorylated tau (detected by the Tau1 antibody), and phosphorylated tau at two AD-related amino acid positions (detected by antibodies against pT205 and pS396, respectively) were determined in the hippocampus of Saa3−/−mice and their WT littermates that received LPS or saline. The gene discussed is SAA3P; the disease is Alzheimer disease.