free thyroxine, thyroid-stimulating hormone (TSH), follicle-stimulating hormone (FSH), luteinizing hormone, prolactin, estradiol, and testosterone by commercial kits (Siemens Healthcare Diagnostics) using a fully automatic chemiluminescence immunoassay analyzer (ADVIA Centaur XP, Siemens Healthcare Diagnostics...
Serum leptin levels and liver glycogen levels were determined by the Yale Mouse Metabolic Phenotyping Center Analytical Core. Testosterone and corticosterone assays were performed by the Vanderbilt University Medical Center Hormone Assay and Analytical Services Core. Lipidomics Lipidomics analysis of white ...
Some tests need to have more than one reference range because of factors that affect the results. For example, men and women have separate ranges for totaltestosteronelevels. The main factors that determine whether multiple reference ranges are necessary are [1]: Age Sex Reproductive status (puber...