Summary: This core will provide services for quantification and comparison in animal models for hormone measurements; kidney function analytes; lipid metabolism analytes; liver function analytes; miscellaneous protein analytes; and immune function including cytokines/chemokines. The Luminex assay enables the quantification of all or any combination of analytes for which there are assay beads in tissue/cell lysate, tissue culture supernatant samples and plasma/serum. For example, cytokines and chemokines are peptides, which act as regulators in normal and pathological conditions, effecting interactions between cells as well as regulating processes occurring in the extracellular environment.