title: A solid-phase enzyme-linked immunosorbent assay for the quantitation of human plasma alpha 1-acid glycoprotein.
abstract: We describe a solid-phase enzyme-linked immunosorbent assay for alpha 1-acid glycoprotein in human plasma. Plasma samples are incubated with alkaline phosphatase-linked, purified alpha 1-acid glycoprotein in alpha 1-acid glycoprotein-specific antibody-coated polystyrene tubes. The alkaline phosphatase that becomes attached to the tube via an immunological reaction between the alpha 1-acid glycoprotein and the specific antibody is measured spectrophotometrically. This assay is accurate reproducible, simple, and economical. As little as 4 microgram of alpha 1-acid glycoprotein per liter can be detected. The normal range for alpha 1-acid glycoprotein in the plasma of healthy adults, as measured by this method, is 0.48-1.27 g/L; the range is significantly different, 0.29-0.73 g/L, for women who are taking oral contraceptive pills.
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007122:Immunoelectrophoresis; D007074:Immunoglobulin G; D008832:Microchemistry; D009961:Orosomucoid / Q000032:analysis*
chemical_list: D003276:Contraceptives, Oral; D007074:Immunoglobulin G; D009961:Orosomucoid