title: Cerebrospinal fluid IgG profiles and oligoclonal bands in Chinese patients with multiple sclerosis.
abstract: OBJECTIVE
  To investigate the significance of oligoclonal bands (OCBs) and intrathecal IgG fractions (IgGIF) for the diagnosis of multiple sclerosis (MS) in northern China.
  
  
  METHODS
  OCBs in cerebrospinal fluid from 30 patients with MS, 34 with other inflammatory neurological diseases (IND) and 22 with non-inflammatory neurological diseases (NIND) were detected using isoelectric focusing. IgGIF was calculated based on corresponding formula.
  
  
  RESULTS
  There was no significant difference in the frequencies of positive OCBs and elevated IgGIF between the MS group and the IND group. Compared with NIND, the MS and IND groups had a significantly higher incidence of OCBs and elevated IgGIF. The sensitivity, specificity and positive result likelihood ratio of OCBs for the diagnosis of MS were 63.3%, 74.2% and 2.5 respectively; those of IgGIF were 36.7%, 84.5% and 2.4.
  
  
  CONCLUSIONS
  The two parameters, OCBs and IgGIF are of less diagnostic value for MS in China.
authors.affiliation: Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.
authors.forename: B
authors.initials: B
authors.lastname: Li
authors.forename: H
authors.initials: H
authors.lastname: Dong
authors.forename: J
authors.initials: J
authors.lastname: Zhang
authors.forename: X
authors.initials: X
authors.lastname: Song
authors.forename: L
authors.initials: L
authors.lastname: Guo
mesh_terms: D000328:Adult; D044466:Asian People / Q000235:genetics*; D001812:Blood-Brain Barrier / Q000276:immunology; D005260:Female; D006801:Humans; D015994:Incidence; D007525:Isoelectric Focusing; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000208:ethnology / Q000235:genetics / Q000276:immunology*; D043025:Oligoclonal Bands / Q000097:blood / Q000134:cerebrospinal fluid*; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D016036:Seroepidemiologic Studies; D012709:Serum Albumin
chemical_list: D043025:Oligoclonal Bands; D012709:Serum Albumin