title: Charge microheterogeneity of the beta-trace proteins (lipocalin-type prostaglandin D synthase) in the cerebrospinal fluid of patients with neurological disorders analyzed by capillary isoelectrofocusing.
abstract: Charge microheterogeneity of the beta-trace protein (beta-TP = lipocalin-type prostaglandin D synthase) in the cerebrospinal fluid (CSF) of patients with various neurological disorders was analyzed by capillary isoelectric focusing (CIEF). Under the conditions employed, beta-TP in the low-molecular-weight protein fraction of CSF was separated into at least four isoforms with different p/ values. An isoform with the pl value of 4.6-4.8 was usually the most abundant. The total beta-TP level in the CSF was determined by enzyme-linked immunosorbent assay (ELISA) to be elevated in patients recovering from organic damage to the CNS and those with pathological brain atrophy. Changes in the total beta-TP level in the CSF were occasionally accompanied by those in its charge microheterogeneity, as revealed by CIEF. Such quantitative and qualitative changes in beta-TP in human CSF indicated changes in its pathophysiological roles in association with various neurological disorders.
authors.affiliation: Kyorin University School of Health Sciences, Tokyo, Japan. hiraokaa@kyorin-u.ac.jp
authors.forename: A
authors.initials: A
authors.lastname: Hiraoka
authors.forename: K
authors.initials: K
authors.lastname: Seiki
authors.forename: H
authors.initials: H
authors.lastname: Oda
authors.forename: N
authors.initials: N
authors.lastname: Eguchi
authors.forename: Y
authors.initials: Y
authors.lastname: Urade
authors.forename: I
authors.initials: I
authors.lastname: Tominaga
authors.forename: K
authors.initials: K
authors.lastname: Baba
mesh_terms: D000328:Adult; D000368:Aged; D003943:Diagnostic Techniques, Neurological; D019075:Electrophoresis, Capillary / Q000379:methods*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D005260:Female; D006801:Humans; D019746:Intramolecular Oxidoreductases / Q000134:cerebrospinal fluid*; D007525:Isoelectric Focusing / Q000379:methods; D007527:Isoenzymes / Q000134:cerebrospinal fluid; D054834:Lipocalins; D008297:Male; D008875:Middle Aged; D009422:Nervous System Diseases / Q000134:cerebrospinal fluid / Q000175:diagnosis
chemical_list: D007527:Isoenzymes; D054834:Lipocalins; D019746:Intramolecular Oxidoreductases; C022466:prostaglandin R2 D-isomerase