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[Chronic HCV hepatopathy and cryoglobulinemia. The associated clinical spectrum]
R Pellicano1, N Leone, I A Maiocco
1Dipartimento di Gastroenterologia, Ospedale Molinette, Torino.
Insights
Hepatitis C virus (HCV) infection frequently causes significant extrahepatic manifestations due to its systemic effects. This study found that 75% of patients with HCV exhibited clinically important extrahepatic symptoms.
Area of Science:
- Hepatology
- Immunology
- Virology
Context:
- Hepatitis C virus (HCV) infection exhibits systemic tropism, affecting hepatocytes, bone marrow stem cells, and lymphocytes.
- HCV infection can lead to B lymphocyte activation, autoantibody production, and cryoglobulinemia.
- Immune complex formation and precipitation are implicated in extrahepatic manifestations of HCV.
Purpose:
- To evaluate extrahepatic manifestations associated with Hepatitis C virus (HCV) infection and mixed cryoglobulinemia.
- To understand the systemic impact of HCV beyond the liver.
Summary:
- A retrospective study analyzed patients with HCV and mixed cryoglobulinemia.
- The study found that 75% of patients presented with clinically significant extrahepatic manifestations.
- This highlights the broad-spectrum effects of HCV on the host organism.
Impact:
- Demonstrates the high prevalence of extrahepatic manifestations in HCV patients.
- Underscores the importance of considering systemic complications in HCV management.
- Provides insights into the pathogenesis of HCV-related extrahepatic diseases.
Background And Aim:
The hepatitis C infection (HCV) has numerous extrahepatic manifestations owing to the systemic nature of the infection itself. HCV infects the cells that carry a CD 81 receptor and show a marked tropism for hepatocytes, bone marrow staminal cells and circulating lymphomonocytes. One consequence of this tropism is the activation of B lymphocyte clones with the consequent production of autoantibodies and cryoglobulins. The secondary event is the formation of circulating immune complexes which, having precipitated at an intravascular level, may cause part of the extrahepatic manifestations associated with these infections.
Methods:
This retrospective study evaluated the manifestations correlated and/or associated with HCV hepatitis and mixed cryoglobulinaemia.
Results:
This analysis showed that 75% of consecutively studied patients reveal clinically important extrahepatic manifestations.
Conclusions:
This underlines the "broad spectrum" action played by the hepatitis C virus in the host organism.