Practical Details for the Detection and Interpretation of Cryoglobulins.
| Autor: | Kolopp-Sarda MN; Immunogenomics and Inflammation Research Unit, University of Lyon, Lyon, France.; Immunology Laboratory, Hospices Civils de Lyon, Lyon, France., Miossec P; Immunogenomics and Inflammation Research Unit, University of Lyon, Lyon, France.; Department of Immunology and Rheumatology, Clinical Immunology Unit, Hospices Civils de Lyon, Lyon, France. |
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| Jazyk: | angličtina |
| Zdroj: | Clinical chemistry [Clin Chem] 2022 Feb 01; Vol. 68 (2), pp. 282-290. |
| DOI: | 10.1093/clinchem/hvab195 |
| Abstrakt: | Background: Cryoglobulins are immunoglobulins that precipitate at low temperature. Strict preanalytical and analytical conditions are critical for the detection of cryoglobulins. Content: This review will focus on practical recommendations for detection and characterization of cryoglobulins and the technical problems that may be encountered. A laboratory report format is proposed for presentation of these results that includes the parameters necessary for an optimal interpretation by clinicians. The first step of detection of cryoglobulins can be performed in any laboratory that has a 37 °C incubator and temperature-controlled centrifuge. The second step is the characterization of cryoglobulins, and this often must be performed in more specialized laboratories. Characterization includes immunoglobulin typing, for the classification of cryoglobulins and potential underlying disease(s); quantification of immunoglobulins and rheumatoid factor in the cryoprecipitate to define the pathogenicity; and quantification of serum complement, which is useful for diagnosis. Summary: These practical recommendations will be useful for the accurate detection of cryoglobulins, an essential step for the diagnosis of cryoglobulinemic vasculitis, a rare but severe clinical manifestation of cryoglobulins. (© American Association for Clinical Chemistry 2021. All rights reserved. For permissions, please email: journals.permissions@oup.com.) |
| Databáze: | MEDLINE |
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