scholarly journals Involvement of chemokines and type 1 cytokines in the pathogenesis of hepatitis C virus-associated mixed cryoglobulinemia vasculitis neuropathy

2005 ◽  
Vol 52 (9) ◽  
pp. 2917-2925 ◽  
Author(s):  
David Saadoun ◽  
Ivan Bieche ◽  
Thierry Maisonobe ◽  
Tarik Asselah ◽  
Ingrid Laurendeau ◽  
...  
2000 ◽  
Vol 44 (12) ◽  
pp. 3451-3455 ◽  
Author(s):  
Marianne Savès ◽  
François Raffi ◽  
Philippe Clevenbergh ◽  
Bruno Marchou ◽  
Anne Waldner-Combernoux ◽  
...  

ABSTRACT In a cohort of 1,047 human immunodeficiency virus type 1-infected patients started on protease inhibitors (PIs), the incidence of severe hepatic cytolysis (alanine aminotransferase concentration five times or more above the upper limit of the normal level ≥ 5N) was 5% patient-years after a mean follow-up of 5 months. Only positivity for hepatitis C virus antibodies (hazard ratio [HR], 7.95;P < 10−3) or hepatitis B virus surface antigen (HR, 6.67; P < 10−3) was associated with severe cytolysis. Before starting patients on PIs, assessment of liver enzyme levels and viral coinfections is necessary.


Hepatology ◽  
1992 ◽  
Vol 16 (3) ◽  
pp. 630-636 ◽  
Author(s):  
Francloise Lunel ◽  
Nisen Abuaf ◽  
Lionel Frangeul ◽  
Patrick Grippon ◽  
Michèle Perrin ◽  
...  

2009 ◽  
Vol 51 (6) ◽  
pp. 325-329 ◽  
Author(s):  
Daniela Fernandes Cardoso ◽  
Fernando Vieira de Souza ◽  
Luiz Augusto M. Fonseca ◽  
Alberto José da Silva Duarte ◽  
Jorge Casseb

Hepatitis C virus (HCV) and human T-cell lymphotropic virus type 1 (HTLV-1) share routes of transmission and some individuals have dual infection. Although some studies point to a worse prognosis of hepatitis C virus in patients co-infected with HTLV-1, the interaction between these two infections is poorly understood. This study evaluated the influence of HTLV-1 infection on laboratory parameters in chronic HCV patients. Twelve HTLV-1/HCV-coinfected patients were compared to 23 patients infected only with HCV, in regard to demographic data, risk factors for viral acquisition, HCV genotype, presence of cirrhosis, T CD4+ and CD8+ cell counts and liver function tests. There was no difference in regard to age, gender, alcohol consumption, smoking habits, HCV genotype or presence of cirrhosis between the groups. Intravenous drug use was the most common risk factor among individuals co-infected with HTLV-1. These patients showed higher TCD8+ counts (p = 0.0159) and significantly lower median values of AST and ALT (p = 0.0437 and 0.0159, respectively). In conclusion, we have shown that HCV/HTLV-1 co-infected patients differs in laboratorial parameters involving both liver and immunological patterns. The meaning of these interactions in the natural history of these infections is a matter that deserves further studies.


1993 ◽  
Vol 4 (6) ◽  
pp. 1288-1293
Author(s):  
D M Burstein ◽  
R A Rodby

The hepatitis C virus genome has been recently sequenced and cloned, allowing the identification of patients exposed to this virus, which is now felt to be the principal cause of "non-A, non-B" hepatitis. The hepatitis B virus has long been implicated in the pathogenesis of several glomerulopathies including membranoproliferative glomerulonephritis, mixed cryoglobulinemia, and membranous glomerulonephritis. Several authors have recently reported an association between hepatitis C virus infection and glomerular disease. The case of a patient with chronic hepatitis C virus infection who developed the nephrotic syndrome 3 months after liver transplantation is described. Serologic testing was significant for an elevated rheumatoid factor, circulating cryoglobulins, and a mildly depressed C4 level. Hepatitis C virus antibody and viral RNA (by polymerase chain reaction) were present in both the serum and cryoglobulin fraction. A renal biopsy demonstrated membranoproliferative glomerulonephritis. It is believed that persistent infection with the hepatitis C virus is responsible for an immune complex-mediated glomerulonephritis in this patient. Because hepatitis C has now been pathogenetically linked to several glomerulopathies, testing for this virus should be considered in the serologic work-up of the patient with glomerulonephritis.


1998 ◽  
Vol 36 (5) ◽  
pp. 1461-1463 ◽  
Author(s):  
S. Le Pogam ◽  
F. Dubois ◽  
R. Christen ◽  
C. Raby ◽  
A. Cavicchini ◽  
...  

Two methods for genotyping hepatitis C virus (DNA enzyme immunoassay [DEIA] and line probe assay [Inno-LiPA HCV I and II]) were compared on 120 samples and of these 87% were assigned to the same subtype by both assays. There were 15 subtyping discrepancies which involved 5% of type 1 isolates and 90% of type 2 isolates. Amplified products from the core and 5′ untranslated regions (UTR) were sequenced to resolve conflicts. Type 1 discordant samples had a guanosine at position −99 in the 5′ UTR, a characteristic of genotype 1b, and a core region typical of subtype 1a. The eight isolates classified as 2a/2c by LiPA and as subtype 2c by DEIA belonged to type 2.


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