title: Approaches to neuropeptide and, in particular, endorphin measurements.
mesh_terms: D001714:Bipolar Disorder / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange / Q000379:methods; D003866:Depressive Disorder / Q000378:metabolism; D004723:Endorphins / Q000032:analysis*; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000032:analysis; D019964:Mood Disorders / Q000378:metabolism; D009419:Nerve Tissue Proteins / Q000032:analysis*; D010146:Pain / Q000378:metabolism; D011863:Radioimmunoassay; D011869:Radioligand Assay
chemical_list: D004723:Endorphins; D009419:Nerve Tissue Proteins; D006897:Hydroxyindoleacetic Acid