title: Use of immunoassays in neurological diagnosis and research.
abstract: OBJECTIVE
  To review the use of immunoassays in the diagnosis and research of disorders affecting the nervous system.
  
  
  METHODS
  Systematic review of the English literature.
  
  
  RESULTS
  Immunoassays have demonstrated utility for: (1) the detection of antigen (molecules, genes, gene products, peptides, hormones and drug metabolites) and (2) the detection of an immune response (antigen-antibody complexes and specific and non-specific populations of antibodies) in serum, cerebrospinal fluid, and central nervous system tissue.
  
  
  CONCLUSIONS
  The specificity of the antibody-antigen interaction makes immunoassays an ideal diagnostic and research tool for the investigation of neurological disease. A number of immunoassays are available for this purpose, and the choice of a particular methodology generally depends upon whether one is detecting antigen, antibody or antigen-antibody complexes, and the nature of the biologic sample that is being tested. Ease of testing, sensitivity, specificity and cost are other important considerations.
authors.affiliation: University of Illinois at Chicago Department of Neurology and Rehabilitation Medicine, 912 S. Wood Street, 855 N, M/C 796 Chicago, IL 60612, USA. mmerig@uic.edu
authors.forename: Matthew N
authors.initials: MN
authors.lastname: Meriggioli
mesh_terms: D000818:Animals; D000906:Antibodies / Q000097:blood / Q000134:cerebrospinal fluid; D000941:Antigens / Q000097:blood / Q000134:cerebrospinal fluid; D006801:Humans; D007118:Immunoassay / Q000379:methods*; D009422:Nervous System Diseases / Q000175:diagnosis / Q000235:genetics / Q000276:immunology*; D011863:Radioimmunoassay
chemical_list: D000906:Antibodies; D000941:Antigens