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Cryoglobulins - Crossref

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Last Updated: 13 July 2022

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Analysis, detection and quantitation of mixed cryoglobulins in HCV infection: brief review and case examples

Abstract based on the discovery that cryoglobulins are high in hepatitis C virus infection worldwide, as well as the high prevalence of HCV infection around the world, the diagnosis of clinically observable mixed cryoglobulinemia syndrome is becoming more important as the majority of patients who are identified can now be properly treated. Patients with mixed cryoglobulinemia can now be managed with success. Low amounts of cryoglobulins can be associated with severe signs; as a result, accurate identification of cryoglobulins may be increasing important as early diagnosis can be a good reason to start treatment.

Source link: https://doi.org/10.1515/cclm-2015-1143


False-seronegative HCV infection motivated by interference with cryoglobulins

We present a case of a patient who was initially misdiagnosed due to CGs' involvement in Hepatitis C Virus serology, which is discussed below. Case study We present an example of a woman of advanced age who was suffering from acute renal disease that necessitated urgent haemodialysis. A diagnosis of acute renal dysfunction secondary to essential cryoglobulinemia was established in the absence of infections and other causes of CGs production. Conclusions as shown in the case: The presence of CGs in blood may indicate a challenge to the correct interpretation of many laboratory findings.

Source link: https://doi.org/10.1515/almed-2020-0086


Cryoglobulins as Potential Triggers of Inflammation in Schizophrenia

This case study was designed to investigate the effects of type III cryoglobulins isolated from patient blood plasma of schizophrenia on the production of proinflammatory cytokine IL-10, and monocyte chemoattractant protein-1 by peripheral blood mononuclear cells. PBMCs found no influence of cryoglobulins on the production of IL-10. Based on the results obtained, we found that type III cryoglobulins are implicated in schizophrenia-related immune responses by induction of proinflammatory and chemotactic cytokines by PBMCs.

Source link: https://doi.org/10.1155/2013/125264


Cryoglobulins, circulating immune complexes, and complement activation in cerebral malaria

Plasmodium falciparum malaria was found in 32 patients. In the seven patients surveyed, increased amounts of complement component 3 breakdown products were discovered. thrombocytopenia was characterized by elevated circulating immune complexes and C3d. In comparison, only in three of 23 patients with benign Plasmodium falciparum malaria, cryoglobulins, and circulating immune complexes were present in patients with benign Plasmodium falciparum malaria.

Source link: https://doi.org/10.1128/iai.31.2.530-535.1981


Cryoglobulins. II. The Biological and Chemical Properties of Cryoproteins in Acute Post-Streptococcal Glomerulonephritis

Gel filtration chromatography using dilute acid yielded two components; a large molecular weight component that was not identified by chemical or immunologic techniques; and another fraction with the same chemical composition as normal human IgG, except for a lower sialic acid content. These results show that mixed cryoglobulins isolated from patients with acute post-streptococcal glomerulonephritis have characteristics similar to those of antigen-antibody complexes, suggesting that they may play a primary or secondary role in the formation of glomerular disease.

Source link: https://doi.org/10.1159/000230562


Practical Details for the Detection and Interpretation of Cryoglobulins

Abstract Background Cryoglobulins are immunoglobulins that precipitate at low temperatures and precipitate at low temperatures. In any laboratory that has a 37 00b0C incubator and temperature-controlled centrifuge, the first step of cryoglobulin discovery can be carried out. Characterization includes immunoglobulin typing for the determination of cryoglobulins and potential underlying disease; quantification of immunoglobulins and rheumatoid factor in the cryoprecipitate to determine the pathogenicity; and quantitative determination of serum complement, which is useful for diagnosis. Cleoglobulins' precise detection of cryoglobulins, an important step toward the diagnosis of cryoglobulinemic vasculitis, a rare yet common clinical manifestation of cryoglobulins, is a rare but severe clinical manifestation of cryoglobulins.

Source link: https://doi.org/10.1093/clinchem/hvab195


Impaired hepatosplenic elimination of circulating cryoglobulins in patients with essential mixed cryoglobulinaemia and hepatitis C virus (HCV) infection

SUMMARY ISSUMMARY It's likely that the pathogenic mechanisms leading to renal deposition of the cryoprecipitable IgM complexes in essential mixed cryoglobulinaemia are unknown. In 13 patients with EMC grouped according to renal involvement, the kinetics and fate of a trace dose of 123I-radiolabelled autologous cryoglobulins was investigated to explore this hypothesis.

Source link: https://doi.org/10.1111/j.1365-2249.1997.475-ce1383.x


Occurrence of C-reactive protein in cryoglobulins

We conducted a systematic immunochemical examination of cryoglobulins from 18 patients by Western blotting, and in 15 of 18 cryoprecipitates a single band was immunoreactive with anti-CRP antibody, irrespective of the cryoglobulins' clonal composition. The cryoglobulins' success determined CRP by Western blotting depended on the protein content of the cryoglobulins, according to Longitudinal study of 23 cryoprecipitates from seven patients. CRP can modulate pathophysiologic responses in vivo since complexed CRP has been previously shown to be an effective promoter of complement by C1q binding.

Source link: https://doi.org/10.1046/j.1365-2249.2001.01606.x


Effect of 51p1-related gene copy number (V1–69 locus) on production of hepatitis C-associated cryoglobulins

SUMMARY Monoclonal IgM in type II mixed cryoglobulins preferentially use VH genes that are linked to 51p1-related immunoglobulins. In normal preimmune B lymphocytes, 51p1-related gene expression is proportional to the germ-line gene dose, which can be 0u20134. 42 MC+, 23 MC+, U221212. To find out whether 51p1-related gene therapy affects type II MC or the VH gene bias in cryoglobulin IgM, we investigated 47 patients chronically infected with hepatitis C virus. Significant differences were not observed in analyses restricted to patients with a u2265 1 copy of a 51p1-related gene in MC+ and MC+ patients than in MC2112 patients and G6+ patients versus the 36 others, but no significant differences were apparent in those limited to patients with a neologous gene. We conclude that when a 51p1-related gene is present, a strong preference favors G6+ IgM in HCV-associated type II MC, but that risk is not significantly boosted by a high dosage of 51p1-related genes.

Source link: https://doi.org/10.1046/j.1365-2249.2001.01406.x

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* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions