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Clinical Chemistry 37: 104-107, 1991;
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Clinical Chemistry, Vol 37, 104-107, Copyright © 1991 by American Association for Clinical Chemistry

Establishment of a reference interval for beta 2-microglobulin in cerebrospinal fluid with use of two commercial assays

CT Lutz, SH Cornell and JA Goeken
Department of Pathology, University of Iowa, Iowa City 52242.

Increased concentrations of beta 2-microglobulin in cerebrospinal fluid have been used to detect central nervous system involvement with metastatic cancer and with neurological complications of AIDS. However, no adequate reference interval study has been reported for beta 2- microglobulin in cerebrospinal fluid. We established a reference interval with both the Abbott IMx microparticle enzyme-linked immunoassay (EIA) (0.6-2.0 mg/L) and the Pharmacia beta 2-micro EIA 96 method (0.8-2.2 mg/L) for beta 2-microglobulin in cerebrospinal fluid. The two methods correlate well, with the latter method giving slightly higher values. beta 2-Microglobulin increases with age in adults by about 0.1 mg/L every 7.5 years, with no significant difference between genders.




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Copyright © 1991 by the American Association for Clinical Chemistry.