Description:Metabolomics analysis was performed on twelve mice serum samples from Dr. Martin Blaser's laboratory at NYU school of medicine. Serum from week 15 mice were analyzed: (a) mice received low-dose antibiotics until week 4 (STAT), (b) mice received no antibiotics (control), (c) mice received low dose antibiotics (STAT) and then cohoused with control animals (STAT-coho), (d) mice received no antibiotics and then were cohoused with STAT animals (Control-coho). In this collaboration, we are interested in the metabolic differences among these groups.