Hepatitis: Hunyady B

Anonymous00086, Anonymous00087, Gervain J, Horváth G, Hunyady B, Makara M, Pár A, Szalay F, Tornai I, Telegdy L. · No affiliation provided · Orv Hetil. · Pubmed #19087916 No free full text.

This publication has no abstract.

Dalmi L, Gervain J, Horváth G, Hunyady B, Ibrányi E, Makara M, Pár A, Szalay F, Tornai I, Telegdy L, Anonymous00498, Anonymous00499. · No affiliation provided · Orv Hetil. · Pubmed #18194921 No free full text.

This publication has no abstract.

Dalmi L, Gervain J, Hunyady B, Ibrányi E, Makara M, Pár A, Szalay F, Tornai I, Telegdy L. · No affiliation provided · Orv Hetil. · Pubmed #17378168 No free full text.

This publication has no abstract.

Gasztonyi B, Antal I, Szendy E, Pár A, Hunyady B. · Pécsi Tudományegyetem Orvostudományi es Egészségtudományi Centrum, Altálanos Orvostudományi Kar, I. Sz. Belgyógyászati Klinika. · Orv Hetil. · Pubmed #16468603 No free full text.

Abstract: INTRODUCTION: Viral hepatitis is a problem of population health. Recent data show an estimated number of 400 million patients infected with hepatitis B and 170 million with hepatitis C virus in the world. The prevalence of HBV infected patients is estimated to 50000, the prevalence of the HCV patients to 70,000 in Hungary. AIMS: The authors report the legal and occupational health aspects of viral hepatitis. The knowledge of these facts could help both the patients and doctors. This paper is on the employment, occupational restrictions of the infected patients, the legal aspects of the discrimination and the vaccination. The authors report the knowledge, rules and restrictions relating to health service employees in a separate subchapter. They call the attention to the occupational health aspects in relation to the infected patients and health service employees from the point of view of the occupational health specialist, the commissioner responsible for safeguarding the patients' interest and the specialist attending the infected patients.

Gasztonyi B, Pár G, Pár A, Hunyady B. · Pécsi Tudományegyetem, Orvos- es Egészségtudományi Centrum, Altalános Orvostudományi Kar, I. Sz. Belgyógyászati Klinika. · Orv Hetil. · Pubmed #16408382 No free full text.

Abstract: OBJECTIVES: The authors described their experience with the therapy with pegylated interferon and its safety in patients with hepatitis C virus (HCV) induced liver cirrhosis treated at First Department of Medicine, Medical School, University of Pécs and at Tawam Hospital, Al Ain, United Arab Emirates. PATIENTS AND METHODS: Twenty four (12 male, 12 female, average: 55.66 +/- 7. 02 years) anti-HCV and/or HCV-RNA PCR positive cirrhotic patients were examined. Liver cirrhosis was diagnosed by abdominal ultrasound and/or histological examination of liver biopsy. RESULTS: Different genotypes of HCV were detected: genotype 1 in 7 cases, genotype 2 in 1 person, genotype 3 in 3 cases. Genotype 4 was detected in 10 patients, all of them were treated out of Hungary. Thirteen of 24 patients were not treated earlier, 6 persons were non-responders to previous interferon monotherapy, pegylated interferon was administered to 5 patients because of relapse. Biochemical parameters showed improvement in 16 cases (16/24, 66.66%), but did not in 5 patients. Until now, virological response was achieved in 13 patients (13/24, 54.16%), while three patients remained HCV-PCR positive. Temporary dose reduction was needed in 13/24 cases (54.16%). Withdrawal of therapy became necessary in only 2 patients due to severe neutropenia, thrombocytopenia and/or signs of decompensation. CONCLUSIONS: Pegylated interferon treatment is well tolerated by patients with compensated liver cirrhosis (Child-Pough stage A). Frequent side-effects (half of all cases) were usually mild or moderate requiring discontinuation only in 2 of 24 patients. The incidence of neutropenia and thrombocytopenia emphasizes the need of frequent blood cell count tests and patients follow up.

Pár A, Roth E, Miseta A, Hegedüs G, Pár G, Hunyady B, Vincze A. · Pécsi Tudományegyetem, Altalános Orvostudományi Kar I. Belgyógyászati Klinika, Pécs. · Orv Hetil. · Pubmed #19103558 No free full text.

Abstract: Since oxidative stress may play a pathogenetic role in chronic hepatitis C, and sustained virological response to antiviral therapy is limited in HCV1 genotype infection, a double blind study was performed in HCV1 patients treated with pegylated interferon + ribavirin, to assess the efficacy of supplementation with the antioxidant flavonoid silymarin. PATIENTS AND METHODS: Thirty-two naive HCV1 positive patients with biopsy proven chronic hepatitis C, to be treated with pegylated interferon + ribavirin, have been randomized: group A): 16 patients have been given the antiviral therapy for 6-12 months plus placebo for the first 3 months; group B): 16 patients have been treated with pegylated interferon + ribavirin for 6-12 months plus silymarin, 2 x 166 mg/day, was given for 3 months. Serum alanine aminotransferase and HCV-RNA levels as well as parameters of oxidative stress such as plasma or red blood cell hemolysate, malondialdehyde, superoxide dismutase, glutathione peroxidase, catalase and myeloperoxidase were determined after 0, 1, 3, 6 and 12 months during the treatment. Sustained virological response as undetectable serum HCV RNA was evaluated 24 weeks after the end of therapy. RESULTS: In the silymarin group, a more rapid decrease in the malondialdehyde level as well as a marked decrease in superoxide dismutase and an increase in myeloperoxidase activity after month 12 were found, alanine aminotransferase normalized in 6/16 (vs control 9/16) cases, and sustained virological response occurred in 3/16 (vs 7/16) patients. DISCUSSION/CONCLUSION: Although silymarin supportation to antiviral therapy improved oxidative stress, it was able to affect favourably neither the alanine aminotransferase nor the sustained virological response. These contradictory findings may be related to randomization bias as patients in study group B had more negative predictors of response: they were older with higher fibrosis score and even with more severe pretreatment baseline oxidative stress. Regarding the recently published in vitro experiments with silybinin on HCV replication as well as the newest convincing clinical observations, we do suggest further studies with more than three times higher doses of silymarin in controlled trials to assess the value of this supplementation in antivirally treated HCV patients.

Pár G, Berki T, Pálinkás L, Balogh P, Szereday L, Halász M, Szekeres-Barthó J, Miseta A, Hegedus G, Mózsik G, Hunyady B, Pár A. · Pécs Tudományegyetem, Altalános Orvostudományi Kar, I. Belgyógyászati Klinika. · Orv Hetil. · Pubmed #16623441 No free full text.

Abstract: BACKGROUND: The outcome of HCV infection and the response to antiviral treatment depend on both viral and host factors. Host immune response contributes not only to viral control, clinical recovery and protective immunity, but also to chronic hepatitis and liver cirrhosis. Establishing immunological status and identifying pretreatment immunological factors associated with better response to therapy might be of importance in the understanding of the successful immune response and in the future of combination therapy to HCV infection. AIMS: The authors delivered a review on the immunology of HCV infection and characterized the cause of impaired cellular immune response in chronic HCV infection. Natural killer (NK) cell activity, perforin and the inhibitory CD81 HCV co-receptor expression, and Th1/Th2 cytokine production of the monocytes and lymphocytes have been investigated. PATIENTS AND METHODS: 42 patients with chronic hepatitis C, out of them 25 being on interferon (PEG-IFN) + ribavirin (RBV) therapy, 12 sustained virological responders, 26 HCV carriers with normal transaminase values and 22 healthy controls were studied. NK cell activity, perforin and CD81 expression, the IFNgamma, TNFalpha, IL-2 (Th1) and IL-4, IL-6, IL-10 (Th2) production of LPS stimulated monocytes and PMA + ionomycine stimulated lymphocytes were measured by flow-cytometry. RESULTS: In patients with chronic hepatitis C we demonstrated decreased NK cell activity associated with increased CD81 expression. The perforin expression of lymphocytes was also impaired in HCV patients. The pretreatment capacity of the macrophages to produce TNFalpha was predictive for sustained virological response. This increased TNFalpha production of the monocytes counteracted the observed impaired Th1 type cytokine production of the lymphocytes. IL-10 and IL-4 production showed positive correlation with HCV RNA levels, and negative correlation with histological activity index was noted. PEG-IFN + RBV treatment increased NK activity, perforin expression, Th1 type cytokine production of thr lymphocytes and downregulated CD81 expression inducing effective cellular immune response against HCV. The author's results provide further data to understand the causes of impaired cellular immune response in chronic HCV hepatitis and may be useful in the developement of immunotherapy as an adjunctive treatment to cure patients with chronic hepatitis C.

Pár A, Takács M, Brojnás J, Berencsi G, Paál M, Horányi M, Miseta A, Hegedüs G, Mózsik G, Hunyady B. · First Department of Medicine, Medical Faculty, University of Pécs, Ifjúság ut 13, H-7624 Pécs, Hungary. · Acta Microbiol Immunol Hung. · Pubmed #15704332 No free full text.

Abstract: The significance of co-infections with novel hepatitis viruses Hepatitis G (GBV-C, HGV) and TT virus (TTV) in chronic hepatitis C is not clear. We determined the prevalence of HGV RNA and TTV DNA in chronic hepatitis C patients and in asymptomatic hepatitis C virus (HCV) carriers, and assessed the influence of these agents on the course of HCV infection. Seventy-seven patients with chronic hepatitis C--50 of them treated with interferon (IFN)--and 33 HCV carriers with normal alanine aminotransferase have been investigated. Previous HBV infection was detected by testing serum HBsAg and aHBc. HGV RNA and TTV DNA were detected by PCR. In the healthy population, the prevalence of anti-HCV was 0.3%, HGV RNA 8.0% and TTV DNA 18.5%. In chronic hepatitis C HGV RNA occurred in 9.09% and TTV DNA in 40.25% of cases. In IFN-treated patients with sustained remission, the frequency of TTV was 20% vs. 45.7% found in non-responders. Among asymptomatic HCV-carriers, the prevalence of HGV RNA was 9.09% and TTV DNA 75.7%. Neither HGV RNA nor TTV DNA had apparent effect on the HCV infection. TTV was detected with the lowest frequency in persons with sustained remission due to IFN, suggesting antiviral effect of IFN on TTV.

Pár A, Takács M, Brojnás J, Berencsi G, Paál M, Horányi M, Miseta A, Hegedüs G, Mózsik G, Hunyady B. · Pécsi Tudományegyetem, Altalános Orvostudományi Kar, I. Belgyógyászati Klinika, Pécs. · Orv Hetil. · Pubmed #15181733 No free full text.

Abstract: BACKGROUND/AIMS: The prevalence of co-infections with hepatitis B virus (HBV) and novel hepatitis viruses GBV-C (Hepatitis G virus, HGV) and TT virus (TTV) in chronic hepatitis C (HCV) infection has been studied. In patients with chronic hepatitis C and in asymptomatic healthy HCV carriers, the influence of these agents on the course of HCV infection was assessed. METHODS: a total of 110 HCV-positive individuals, among them 77 patients with chronic hepatitis C--50 of them treated with interferon (IFN)--and 33 HCV carriers with normal alanine aminotransferase have been investigated. HBV-DNA, HGV RNA and TTV DNA were detected by PCR, to determine HBsAg and anti-HBc ELISA technic has been used. RESULTS: In the healthy population, the prevalence of anti-HCV was 0.3%, HBsAg 0.09%, anti-HBc 2.5%, HGV RNA 8.0% and TTV DNA 18.5%, respectively. In chronic hepatitis C HBsAg (accompanied with HBV-DNA) occurred in 1.29%, anti-HBc 25.97%, HGV RNA in 9.09% and TTV DNA in 40.25% of cases. In IFN-treated patients with sustained remission, the frequency of TTV was 20% vs. 45.7% found in non-responders. Among asymptomatic HCV-carriers, the prevalence of anti-HBc was 27.27%, HGV RNA 9.09% and TTV DNA 75.7% respectively. CONCLUSIONS: Neither previous HBV infection, nor HGV RNA and TTV DNA had apparent effect on the course of chronic HCV infection. TTV was detected with the lowest frequency in persons with sustained remission due to IFN, suggesting antiviral effect of IFN on TTV.