title: Micromethod for detection of oligoclonal IgG in unconcentrated CSF by polyacrylamide gel electrophoresis.
abstract: A micromethod to detect oligoclonal IgG from 50 microL of unconcentrated CSF was developed by using polyacrylamide gel electrophoresis in sodium dodecyl sulfate (SDS-PAGE). Of 17 patients with multiple sclerosis, oligoclonal bands were demonstrated in 16 instances (94%) by micro-SDS-PAGE and in 13 (76%) by agarose gel electrophoresis. The corresponding figures among 30 patients with optic neuritis were 16 (54%) and five (17%), respectively, and among ten patients with other neurological disease the figures were two (20%) and none, respectively. Thus, micro-SDS-PAGE is more sensitive than agarose gel electrophoresis for detection of oligoclonal IgG. The small volume of unconcentrated CSF that is required enhances the usefulness of this test.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004587:Electrophoresis, Agar Gel; D004591:Electrophoresis, Polyacrylamide Gel / Q000379:methods*; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000134:cerebrospinal fluid*; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000276:immunology; D009422:Nervous System Diseases / Q000276:immunology; D009902:Optic Neuritis / Q000276:immunology
chemical_list: D007074:Immunoglobulin G