PubMed Health⌕ Search

PubMed · 11923952

[Mixed cryoglobulinemia].

Abstract

Cryoglobulins are immunoglobulins that persist in serum, precipitate with cold temperature, and resolve when rewarmed. Cryoglobulinemia are part of systemic vasculitis, and they are in the subgroup of immune complex type vasculitis. Mixed cryoglobulinemia are associated with malignant B lymphoproliferative disorders, auto-immune and chronic infectious diseases, particularly hepatitis C virus infection. Mixed cryoglobulinaemia has a variable prognosis, depending mainly on renal involvement, systemic extension, and severity of hypertension. In pilot studies, alpha interferon seemed promising to treat symptomatic mixed cryoglobulinemia, because of its immunomodulating and antiviral properties. In severe or resistant forms of mixed cryoglobulinemia, plasmapheresis or immunosuppressive agents may be useful.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

P Cacoub, L Musset. 2000-02-01. [Mixed cryoglobulinemia].. https://pubmed.ncbi.nlm.nih.gov/11923952/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

[Vasculitis and liver disease].

Extrahepatic manifestations of liver diseases especially the hepatitis B virus (HBV)-infection and hepatitis C virus (HCV)-infection may occur during acute and/or chronic viral hepatitis. Besides a serum like illness with fever, arthralgia and urticaria, haematological disorders with transient bone marrow suppression and cryoglobulinemia have been described. Vasculitis is a rare complication of viral hepatitis. However, HCV can trigger a cryoglobulinemic vasculitis and may clinically present with purpura, arthritis, neuropathy, glomerulonephritis and fatigue. Panarteritis nodosa is frequently associated with HBV infection, which is caused by deposits of immune complexes in the arterial wall. Therapy of both types of vasculitis depends on the severity of disease and may include immunosuppressive agents as well as antivirals.

Cryoglobulinemia↗

Extrahepatic manifestations of hepatitis C virus.

Given the high prevalence of chronic hepatitis C virus (HCV) infection, its clinical sequelae account for a significant proportion of patients presenting to gastroenterologists and hepatologists. Whereas the hepatic manifestations of hepatitis C are well described, including hepatitis, cirrhosis, and the development of hepatocellular carcinoma, the extrahepatic manifestations, though common, are less well appreciated. Although nonspecific, fatigue and arthralgias are very common in those with chronic hepatitis C. Extrahepatic syndromes have been reported in as much as 36% of HCV patients, but the exact prevalence is not known. Patients with these syndromes can be divided into those with a high degree of association and those with a more moderate or mild association with HCV. The most prevalent extrahepatic diseases with the highest degree of association with HCV are the essential mixed cryoglobulins with skin, neurologic, renal, and rheumatologic complications. Non-cryoglobulin diseases with a less definite relationship to HCV include systemic vasculitis, splenic lymphoma, porphyria cutanea tarda, and the sicca syndromes. This article highlights the pathophysiology and clinical manifestations of these disorders.

Cryoglobulinemia↗