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Ricco G, Popa DC, Cavallone D, Iacob S, Salvati A, Tabacelia D, Oliveri F, Mascolo G, Bonino F, Yuan Q, Xia NS, Gheorghe L, Brunetto MR. Quantification of serum markers of hepatitis B (HBV) and Delta virus (HDV) infections in patients with chronic HDV infection. J Viral Hepat 2018; 25:911-919. [PMID: 29577518 DOI: 10.1111/jvh.12895] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 02/28/2018] [Indexed: 12/31/2022]
Abstract
The interplay between hepatitis B (HBV) and delta (HDV) viruses is complex and not always characterized during chronic HDV infection. We assessed the clinical usefulness of new quantitative assays for HBV and HDV serum markers in a retrospective cross-sectional study. Sera obtained from 122 HDV genotype 1 and HBV genotype D coinfected, anti-HIV-negative patients (71 males; median age 49.8 [21.7-66.9] years), recruited consecutively in two geographical areas (Italy 69 patients, Romania 53 patients) with different HBV and HDV epidemiology, were tested for HBsAg, HBV-DNA, HBcrAg, total anti-HBc, HDV-RNA, IgM and total anti-HDV using quantitative assays. Cirrhosis, which showed comparable prevalence in the two cohorts, was diagnosed in 97 of 122 (79.5%) patients. At multivariate analysis, cirrhosis was associated with lower total anti-HBc/IgM anti-HDV ratio (OR 0.990, 95% CI 0.981-0.999, P = .038), whereas disease activity was associated with higher total anti-HDV (OR 10.105, 95% CI 1.671-61.107, P = .012) and HDV-RNA levels (OR 2.366, 95% CI 1.456-3.844, P = .001). HDV-RNA serum levels showed a positive correlation with HBV-DNA (ρ = 0.276, P = .005), HBsAg (ρ = 0.404, P < .001) and HBcrAg (ρ = 0.332, P < .001). The combined quantitative profiling of HBV and HDV serum markers identifies specific patterns associated with activity and stage of chronic hepatitis D (CHD). HDV pathogenicity depends on the underlying active HBV infection in spite of the inhibition of its replication. HDV-RNA, IgM anti-HDV, total anti-HDV, total anti-HBc, HBsAg and HBcrAg serum levels qualify for prospective studies to predict progressive CHD and identify candidates to antiviral therapy.
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Affiliation(s)
- G Ricco
- Hepatology Unit and Laboratory of Molecular Genetics and Pathology of Hepatitis Viruses, Reference Center of the Tuscany Region for Chronic Liver Disease and Cancer, University Hospital of Pisa, Pisa, Italy.,Internal Medicine, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - D C Popa
- Department of Biochemistry, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Bone Marrow Transplant Laboratory, Fundeni Clinical Institute, Bucharest, Romania
| | - D Cavallone
- Hepatology Unit and Laboratory of Molecular Genetics and Pathology of Hepatitis Viruses, Reference Center of the Tuscany Region for Chronic Liver Disease and Cancer, University Hospital of Pisa, Pisa, Italy
| | - S Iacob
- Department of Gastroenterology and Hepatology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Center for Digestive Diseases and Liver Transplantation, Fundeni Clinical Institute, Bucharest, Romania
| | - A Salvati
- Hepatology Unit and Laboratory of Molecular Genetics and Pathology of Hepatitis Viruses, Reference Center of the Tuscany Region for Chronic Liver Disease and Cancer, University Hospital of Pisa, Pisa, Italy
| | - D Tabacelia
- Center for Digestive Diseases and Liver Transplantation, Fundeni Clinical Institute, Bucharest, Romania
| | - F Oliveri
- Hepatology Unit and Laboratory of Molecular Genetics and Pathology of Hepatitis Viruses, Reference Center of the Tuscany Region for Chronic Liver Disease and Cancer, University Hospital of Pisa, Pisa, Italy
| | - G Mascolo
- Dia.Pro Diagnostic Bioprobes Srl, Sesto San Giovanni, Milan, Italy
| | - F Bonino
- University of Pittsburgh Medical Center (UPMC) Institute for Health, Chianciano Terme, Siena and Fondazione Italiana Fegato (FIF), AREA Science Park, Trieste, Italy
| | - Q Yuan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| | - N-S Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China
| | - L Gheorghe
- Department of Gastroenterology and Hepatology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.,Center for Digestive Diseases and Liver Transplantation, Fundeni Clinical Institute, Bucharest, Romania
| | - M R Brunetto
- Hepatology Unit and Laboratory of Molecular Genetics and Pathology of Hepatitis Viruses, Reference Center of the Tuscany Region for Chronic Liver Disease and Cancer, University Hospital of Pisa, Pisa, Italy.,Internal Medicine, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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Groppo E, Bonino F, Cesano F, Damin A, Manzoli M. CHAPTER 4. Raman, IR and INS Characterization of Functionalized Carbon Materials. Metal-free Functionalized Carbons in Catalysis 2018. [DOI: 10.1039/9781788013116-00103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Moine R, Galán A, Vivas A, Fioretti C, Varela M, Bonino F, Quinteros R, Natali J. Propiedades Morfológicas en la Parte Media de la Díafisis del Hueso Metacarpiano III de Equino Mestizo Criollo. INT J MORPHOL 2015. [DOI: 10.4067/s0717-95022015000300024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Iannazzo S, Colombatto P, Bonino F, Brunetto MR. Cost-Effectiveness Analysis Of A Personalized Therapy For Genotype 1, Naive, Chronic Hepatitis C Patients In Italy. Value Health 2014; 17:A366. [PMID: 27200766 DOI: 10.1016/j.jval.2014.08.819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- S Iannazzo
- SIHS Health Economics Consulting, Torino, Italy
| | - P Colombatto
- University Hospital (AOUP), Cisanello (Pi), Italy
| | - F Bonino
- University Hospital (AOUP), Cisanello (Pi), Italy
| | - M R Brunetto
- University Hospital (AOUP), Cisanello (Pi), Italy
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Colombatto P, Brunetto MR, Maina AM, Romagnoli V, Almasio P, Rumi MG, Ascione A, Pinzello G, Mondelli M, Muratori L, Rappuoli R, Rosa D, Houghton M, Abrignani S, Bonino F. HCV E1E2-MF59 vaccine in chronic hepatitis C patients treated with PEG-IFNα2a and Ribavirin: a randomized controlled trial. J Viral Hepat 2014; 21:458-65. [PMID: 24750327 PMCID: PMC4166695 DOI: 10.1111/jvh.12163] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 06/27/2013] [Indexed: 12/16/2022]
Abstract
Hepatitis C virus (HCV) vaccines may be able to increase viral clearance in combination with antiviral therapy. We analysed viral dynamics and HCV-specific immune response during retreatment for experienced patients in a phase Ib study with E1E2MF59 vaccine. Seventy-eight genotype 1a/1b patients [relapsers (30), partial responders (16) and nonresponders (32) to interferon-(IFN)/ribavirin-(RBV)] were randomly assigned to vaccine (V:23), Peg-IFNα2a-180-ug/qw and ribavirin 1000-1200-mg/qd for 48 weeks (P/R:25), or their combination (P/R + V:30). Vaccine (100 μg/0.5 mL) was administered intramuscularly at week 0-4-8-12-24-28-32-36. Neutralizing of binding (NOB) antibodies and lymphocyte proliferation assay (LPA) for E1E2-specific-CD4 + T cells were performed at week 0-12-16-48. Viral kinetics were analysed up to week 16. The vaccine was safe, and a sustained virological response (SVR) was achieved in 4 P/R + V and 2 P/R patients. Higher SVR rates were observed in prior relapsers (P/R + V = 27.3%; P/R = 12.5%). Higher NOB titres and LPA indexes were found at week 12 and 16 in P/R + V as compared to P/R patients (P = 0.023 and 0.025, P = 0.019 and <0.001, respectively). Among the 22 patients with the strongest direct antiviral effects of IFN (ε ≥ 0.800), those treated with P/R + V (10) reached lower HCV-RNA levels (P = 0.026) at week 16. HCV E1E2MF59 vaccine in combination with Peg-IFNα2a + RBV was safe and elicited E1E2 neutralizing antibodies and specific CD4 + T cell proliferation. Upon early response to IFN, vaccinations were associated with an enhanced second phase viral load decline. These results prompt phase II trials in combination with new antiviral therapies.
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Affiliation(s)
- P Colombatto
- Hepatology Unit, University Hospital of PisaPisa, Italy
| | - M R Brunetto
- Hepatology Unit, University Hospital of PisaPisa, Italy
| | - A M Maina
- Hepatology Unit, University Hospital of PisaPisa, Italy
| | - V Romagnoli
- Hepatology Unit, University Hospital of PisaPisa, Italy
| | - P Almasio
- Sezione di Gastroenterologia, Di.Bi.M.I.S., University of PalermoPalermo, Italy
| | - M G Rumi
- 1st Gastroentrology Unit ‘Ca Granda’- IRCCS Foundation, University of MilanoMilano, Italy
| | - A Ascione
- Liver Unit, Cardarelli HospitalNapoli, Italy
| | - G Pinzello
- Medical Department, Niguarda HospitalMilano, Italy
| | - M Mondelli
- Department of Infectious Diseases, University of PaviaPavia, Italy
| | - L Muratori
- Department of Clinical Medicine, ‘S.Orsola-Malpighi’ University Hospital of BolognaBologna, Italy
| | | | | | - M Houghton
- Canada Excellence Research Chair in Virology University of AlbertaEdmonton, AB, Canada
| | - S Abrignani
- National Institute of Molecular Genetics (INGM)Milano, Italy
| | - F Bonino
- Liver and Digestive Division, General Medicine 2 Unit, University Hospital of PisaPisa, Italy
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Fioretti C, Galán A, Moine R, Varela M, Varela P, Mouguelar H, Gigena S, Bonino F, Quinteros R, Natali J. Características Mecánicas Dinámicas de la Tibia Aislada de Perro Sometida a Prueba de Impacto. INT J MORPHOL 2013. [DOI: 10.4067/s0717-95022013000200033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Valenzano L, Vitillo J, Chavan S, Civalleri B, Bonino F, Bordiga S, Lamberti C. Structure–activity relationships of simple molecules adsorbed on CPO-27-Ni metal–organic framework: In situ experiments vs. theory. Catal Today 2012. [DOI: 10.1016/j.cattod.2011.07.020] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fioretti C, Natali J, Galán A, Rivera MC, Moine R, Varela P, Varela M, Bonino F, Quinteros R. Características Mecánicas Dinámicas del Fémur Aislado de Perro, Sometido a Prueba de Impacto. INT J MORPHOL 2011. [DOI: 10.4067/s0717-95022011000300009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Muddada NB, Olsbye U, Leofanti G, Gianolio D, Bonino F, Bordiga S, Fuglerud T, Vidotto S, Marsella A, Lamberti C. Quantification of copper phases, their reducibility and dispersion in doped-CuCl2/Al2O3 catalysts for ethylene oxychlorination. Dalton Trans 2010; 39:8437-49. [DOI: 10.1039/c0dt00488j] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rivera MC, Bonino F, Fioretti C, Galán M, Gigena S, Moine R, Mouguelar H, Natali J, Quinteros R. Análisis Multivariado Aplicado a la Etapa de Deshidratación en la Técnica de Plastinación del Riñón de Caballo. INT J MORPHOL 2009. [DOI: 10.4067/s0717-95022009000300035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Bertarione S, Bonino F, Cesano F, Jain S, Zanetti M, Scarano D, Zecchina A. Micro-FTIR and Micro-Raman Studies of a Carbon Film Prepared from Furfuryl Alcohol Polymerization. J Phys Chem B 2009; 113:10571-4. [DOI: 10.1021/jp9050534] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Bertarione
- Department of Inorganic, Physical, and Materials Chemistry, NIS Centre of Excellence, and INSTM Centre of Reference, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
| | - F. Bonino
- Department of Inorganic, Physical, and Materials Chemistry, NIS Centre of Excellence, and INSTM Centre of Reference, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
| | - F. Cesano
- Department of Inorganic, Physical, and Materials Chemistry, NIS Centre of Excellence, and INSTM Centre of Reference, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
| | - S. Jain
- Department of Inorganic, Physical, and Materials Chemistry, NIS Centre of Excellence, and INSTM Centre of Reference, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
| | - M. Zanetti
- Department of Inorganic, Physical, and Materials Chemistry, NIS Centre of Excellence, and INSTM Centre of Reference, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
| | - D. Scarano
- Department of Inorganic, Physical, and Materials Chemistry, NIS Centre of Excellence, and INSTM Centre of Reference, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
| | - A. Zecchina
- Department of Inorganic, Physical, and Materials Chemistry, NIS Centre of Excellence, and INSTM Centre of Reference, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
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Uddin M, Cesano F, Scarano D, Bonino F, Agostini G, Spoto G, Bordiga S, Zecchina A. Cotton textile fibres coated by Au/TiO2 films: Synthesis, characterization and self cleaning properties. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2008.05.004] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Uddin M, Cesano F, Bertarione S, Bonino F, Bordiga S, Scarano D, Zecchina A. Tailoring the activity of Ti-based photocatalysts by playing with surface morphology and silver doping. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2007.07.037] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bertarione S, Bonino F, Cesano F, Damin A, Scarano D, Zecchina A. Furfuryl alcohol polymerization in H-Y confined spaces: reaction mechanism and structure of carbocationic intermediates. J Phys Chem B 2008; 112:2580-9. [PMID: 18266350 DOI: 10.1021/jp073958q] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The acid-catalyzed polymerization and resinification, in the 300-673 K interval, of furfuryl alcohol adsorbed in the framework of a protonic Y zeolite is studied by means of FTIR, Raman, and UV-vis spectroscopies. The idea is that restricted spaces can impose a constraint to the growth of the oligomeric chains, therefore moderating the formation of conjugated sequences responsible for the color of the products and allowing their observation by means of spectroscopic techniques. The detailed study of the evolution of UV-vis, FTIR, and Raman spectra upon dosed amount, contact time, and temperature has allowed the spectroscopic features of some of the single species, either neutral and positively charged (carbocationic intermediates), to be singled out and assigned to understand the mechanism of initiation. The vibrational assignments have been confirmed by computer simulations on model compounds and compared with the results of the mechanistic description of the reaction mechanism made in the past (Choura, et al. Macromolecules 1996, 29, 3839-3850). The spectroscopic methods have been applied in a large temperature range in order to follow also the formation of more complex products into the pores, associated with longer conjugated sequences, gradually filling the open spaces of the zeolite. For samples contacted with furfuryl alcohol at 673 K, this methodology gives information also on the incipient carbonization process, leading to the formation of a carbonaceous replica phase inside the internal porosity of the zeolite.
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Affiliation(s)
- S Bertarione
- Department of Inorganic, Physical and Materials Chemistry, NIS Centre of Excellence, and Centre of Reference INSTM, University of Turin, Via P. Giuria 7, I-10125 Torino, Italy
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Moriconi F, Colombatto P, Coco B, Ciccorossi P, Oliveri F, Flichman D, Maina AM, Sacco R, Bonino F, Brunetto MR. Emergence of hepatitis B virus quasispecies with lower susceptibility to nucleos(t)ide analogues during lamivudine treatment. J Antimicrob Chemother 2007; 60:341-9. [PMID: 17567633 DOI: 10.1093/jac/dkm187] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES We studied the impact of hepatitis B virus (HBV) polymerase/reverse transcriptase (Pol/Rt) heterogeneity on adefovir rescue therapy in 34 consecutive chronic hepatitis B patients with viral breakthrough during lamivudine monotherapy. METHODS The Pol/Rt A-F domains were directly sequenced in all patients at baseline, and 12 and 24 months. Response to therapy was evaluated at 3, 6, 12 and 24 months by quantitative HBV-DNA. RESULTS Primary treatment failures did not occur. At 6 months 24/34 (70.6%) patients had viraemia<10(4) copies/mL [initial viral response (IVR)]; at 12 and 24 months 23 (71.9%) and 26 (81.3%) of 32 had HBV-DNA<200 copies/mL [complete viral response (CVR)]. IVR or CVR patients did not show viral breakthroughs, which occurred in one of the six remaining patients. All but three patients had baseline rtM204I/V substitutions associated with rtL180M in 23, rtL80I/V in 14, rtV173L in 4, rtT184S in 3, rtQ215S in 2 and rtA181S in 2 cases. rtA181S without rtM204I/V was found in one patient. Four of the six patients (67%) without 24 month CVR showed rtA181S or rtT184S substitutions either alone or with typical lamivudine resistance profiles. Baseline HBV-DNA levels were negatively associated with IVR (univariate analysis, P=0.023). At least one of rtA181S and rtT184S substitutions correlated negatively with IVR and CVR (univariate analysis, P=0.001) and was independently associated with absence of CVR (P = 0.016). CONCLUSIONS Lamivudine monotherapy favours the emergence of viral quasispecies that influence the response rate to adefovir rescue therapy independently from baseline viraemia and lower the susceptibility to other nucleos(t)ide analogues.
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Affiliation(s)
- F Moriconi
- UO Gastroenterologia ed Epatologia Ospedaliera, University Hospital of Pisa, Pisa, Italy
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Uddin M, Cesano F, Bonino F, Bordiga S, Spoto G, Scarano D, Zecchina A. Photoactive TiO2 films on cellulose fibres: synthesis and characterization. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2007.02.015] [Citation(s) in RCA: 167] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Bonino F, Marcellin P, Lau GKK, Hadziyannis S, Jin R, Piratvisuth T, Germanidis G, Yurdaydin C, Diago M, Gurel S, Lai MY, Brunetto MR, Farci P, Popescu M, McCloud P. Predicting response to peginterferon alpha-2a, lamivudine and the two combined for HBeAg-negative chronic hepatitis B. Gut 2007; 56:699-705. [PMID: 17127704 PMCID: PMC1942152 DOI: 10.1136/gut.2005.089722] [Citation(s) in RCA: 222] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE In a trial of patients with hepatitis B e antigen (HBeAg)-negative chronic hepatitis B, 24 week post-treatment biochemical and virological response rates with peginterferon alpha-2a with or without lamivudine were significantly higher than with lamivudine alone. The effect of pre-treatment factors on post-treatment responses was investigated. METHODS Multivariate analyses were performed using available data from 518 patients treated with peginterferon alpha-2a with or without lamivudine, or with lamivudine alone. A post-treatment response was defined as alanine aminotransferase (ALT) normalisation and hepatitis B virus (HBV) DNA level of <20,000 copies/ml. RESULTS In logistic regression analyses across all treatment arms, peginterferon alpha-2a (with or without lamivudine) therapy, younger age, female gender, high baseline ALT, low baseline HBV DNA and HBV genotype were identified as significant predictors of combined response at 24 weeks post-treatment. In the peginterferon alpha-2a and lamivudine monotherapy arms, patients with genotypes B or C had a higher chance of response than genotype D infected patients (p<0.001), the latter responding better to the combination than to peginterferon alpha-2a monotherapy (p = 0.015). At 1 year post-treatment, response rates by intention-to-treat analysis were 19.2% for the peginterferon alpha-2a, 19.0% for the combination, and 10.0% for the lamivudine groups, with genotypes B or C associated with a sustained combined response to peginterferon alpha-2a with or without lamivudine therapy. CONCLUSIONS Baseline ALT and HBV DNA levels, patient age, gender, and infecting HBV genotype significantly influenced combined response at 24 weeks post-treatment, in patients treated with peginterferon alpha-2a and/or lamivudine. At 1 year post-treatment HBV genotype was significantly predictive of efficacy for patients treated with peginterferon alpha-2a with or without lamivudine.
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Affiliation(s)
- F Bonino
- University of Pisa and Foundation IRCCS, Policlinico di Milano, Milan, Italy.
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Coco B, Oliveri F, Maina AM, Ciccorossi P, Sacco R, Colombatto P, Bonino F, Brunetto MR. Transient elastography: a new surrogate marker of liver fibrosis influenced by major changes of transaminases. J Viral Hepat 2007; 14:360-9. [PMID: 17439526 DOI: 10.1111/j.1365-2893.2006.00811.x] [Citation(s) in RCA: 441] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Liver stiffness was measured by transient elastography (FibroScan) in 228 consecutive patients with chronic viral hepatitis, with (115) or without cirrhosis (113), to study its correlations with serum transaminases [alanine aminotransferase (ALT)], fibrosis stage and surrogate noninvasive markers of fibrosis (APRI, FORNS, FibroTest and hyaluronic acid). The dynamic profiles of serum transaminases and liver stiffness were compared by multiple testing in 31 patients during a 6-month follow-up. We identified 8.3 and 14 kPa as the fibrosis >/=F2 and cirrhosis cut-offs, respectively: their sensitivities were 85.2%/78.3%; specificities 90.7%/98.2%; positive predictive values 93.9%/97.8%; negative predictive values 78.8%/81.6%; diagnostic accuracies 87.3%/88.2%. FibroScan performed better than the other surrogate markers of fibrosis (P < 0.001). Other than fibrosis, other factors independently associated with liver stiffness were ALT for all patients and chronic hepatitis patients (P < 0.001), and 12-month persistently normal ALT (biochemical remission, P < 0.001) in cirrhotics. In patients with biochemical remission either spontaneous or after antiviral therapy (48 of 228, 21%), liver stiffness was lower than in patients with identical fibrosis stage, but elevated ALT (P < 0.001). The liver stiffness dynamic profiles paralleled those of ALT, increasing 1.3- to 3-fold during ALT flares in 10 patients with hepatitis exacerbations. Liver stiffness remained unchanged in 21 with stable biochemical activity (P = 0.001). In conclusion, transient elastography is a new liver parameter that behaves as a reliable surrogate marker of fibrosis in chronic viral hepatitis patients, provided that its relationship with major changes of biochemical activity is taken into account.
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Affiliation(s)
- B Coco
- UO Gastroenterologia ed Epatologia Ospedaliera, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
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Bordiga S, Regli L, Bonino F, Groppo E, Lamberti C, Xiao B, Wheatley PS, Morris RE, Zecchina A. Adsorption properties of HKUST-1 toward hydrogen and other small molecules monitored by IR. Phys Chem Chem Phys 2007; 9:2676-85. [PMID: 17627311 DOI: 10.1039/b703643d] [Citation(s) in RCA: 320] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Among microporous systems metal organic frameworks are considered promising materials for molecular adsorption. In this contribution infrared spectroscopy is successfully applied to highlight the positive role played by coordinatively unsaturated Cu2+ ions in HKUST-1, acting as specific interaction sites. A properly activated material, obtained after solvent removal, is characterized by a high fraction of coordinatively unsaturated Cu2+ ions acting as preferential adsorption sites that show specific activities towards some of the most common gaseous species (NO, CO2, CO, N2 and H2). From a temperature dependent IR study, it has been estimated that the H2 adsorption energy is as high as 10 kJ mol(-1). A very complex spectral evolution has been observed upon lowering the temperature. A further peculiarity of this material is the fact that it promotes ortho-para conversion of the adsorbed H2 species.
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Affiliation(s)
- S Bordiga
- Dipartimento di Chimica IFM and NIS Centre of Excellence, Università di Torino, INSTM UdR Torino, Via Pietro Giuria 7, 10125, Torino, Italy.
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Porretti L, Gatti S, Gramignoli R, Colombo F, Lopa R, Cattaneo A, Scalamogna M, Colombo G, Rossi G, Bonino F, Rebulla P, Prati D. Animal model for liver cell banking from non-heart beating donors after prolonged ischaemia time. Dig Liver Dis 2006; 38:905-11. [PMID: 16920045 DOI: 10.1016/j.dld.2006.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2006] [Revised: 07/05/2006] [Accepted: 07/06/2006] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM Although there is a growing interest on the use of non-heart beating donors to enlarge the liver donor pool, livers with prolonged warm ischaemia time are not currently considered for organ transplantation. We hypothesised that these organs may represent a source of hepatocytes for cell transplantation and/or use in bioartificial liver devices. Thus, we investigated if prolonged ischaemia could influence the recovery and viability of functional hepatocytes dissociated from rat livers. METHODS Hepatocytes were isolated from the liver within 15 min after death (t=15 min) and after 4, 8 and 12h of ischaemia. Cells were either maintained in culture or cryopreserved. In all products, we evaluated cell recovery and viability, hepatocyte markers and cellular functions, including albumin and urea production. RESULTS The number of cells per gram of tissue was similar at 15 min, 4 and 8h, while it was significantly decreased at 12h. About 0.2 x 10(6) viable cells expressing hepatocyte markers and producing albumin and urea were isolated up to 8h of ischaemia per gram of tissue. CONCLUSIONS Recovery of viable and functional hepatocytes seems possible after prolonged ischaemia time. These data warrant the evaluation of hepatocyte isolation from human livers of non-heart beating donors.
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Affiliation(s)
- L Porretti
- Center of Transfusion Medicine, Cell Therapy and Cryobiology, IRCCS Fondazione Ospedale Policlinico, Mangiagalli e Regina Elena, Via Francesco Sforza 35, 20122 Milan, Italy.
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Affiliation(s)
- F. Croce
- a Dipartimento di Chimica , Università di Roma ‘La Sapienza’ , Rome , Italy
| | - F. Bonino
- a Dipartimento di Chimica , Università di Roma ‘La Sapienza’ , Rome , Italy
| | - S. Panero
- a Dipartimento di Chimica , Università di Roma ‘La Sapienza’ , Rome , Italy
| | - B. Scrosati
- a Dipartimento di Chimica , Università di Roma ‘La Sapienza’ , Rome , Italy
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Marcellin P, Bonino F, Lau G, Farci P, Yurdaydin C, Piratvisuth T, Jin R, Gurel S, Hadziyannis S, Lu Z, Popescu M. P.112 Response is sustained two years post-treatment in the majority of patients with HBeAg-negative chronic hepatitis B treated with peginterferon alpha-2a (40KD) [PEGASYS®]. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80294-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Ciccorossi P, Colombatto P, Maina A, Civitano L, Oliveri F, Sacco R, Coco B, Bonino F, Brunetto M. O.091 Early prediction of response to Peg-IFNα-2a or Peg-IFNα-2b plus ribavirin in the single chronic hepatitis C patients by modeling the dynamics of infected cells. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80088-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Flichman D, Cavallone D, Biagioni R, Oliveri F, Ciccorossi P, Coco B, Colombatto P, Sacco R, Bonino F, Brunetto M. P.029 HBeAg defective mutants in active/inactive anti-HBe positive HBV carriers: possible role of pre-core initiation mutants. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80213-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Flichman D, Maina A, Colombatto P, Bonino F, Brunetto MR. Validation and comparison of different PCR-based methods for detection of hepatitis B virus precore region mutants. J Virol Methods 2005; 129:64-74. [PMID: 15993954 DOI: 10.1016/j.jviromet.2005.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2005] [Revised: 05/03/2005] [Accepted: 05/04/2005] [Indexed: 11/19/2022]
Abstract
Hepatitis virus variants detection is useful in clinical practice; however, methods that are used for their identification may influence the results significantly. Three PCR-based assays for quantitation of G1896A precore HBV mutants: two allele specific PCRs, single tube (single-AS-PCR) with enzymatic restriction or separate tubes (twin-AS-PCR) and one oligohybridization assay (OA) with three probes were developed and standardized. Wild type and mutant plasmids and 10 sera were used as reference. All methods had sensitivity limits of 10(4)copies/ml and their specificity encompassed 3 logs (10(4)-10(7)copies/ml) with dynamic ranges of logs for OA, twin-AS-PCR and single-AS-PCR, respectively. Single-AS-PCR and OA detected minor viral populations when their relative prevalence was at least 10% of the overall viral population whereas their detection by twin-AS-PCR ranged from 0.1 to 10% for samples with 10(7) and 10(5)copies/ml viral loads, respectively. Twin-AS-PCR was the most sensitive to detect the minor viral population, whereas single-AS-PCR and OA were more accurate to quantify the relative proportions of the two viral populations independently of the overall viral load. In conclusion, an accurate characterization of HBV precore heterogeneity should be warranted by a careful choice of the most appropriate assay according to the aim of the study.
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Affiliation(s)
- D Flichman
- UO Gastroenterologia ed Epatologia, Azienda Ospedaliero Universitaria Pisana, Via Paradisa 2, 56124 Pisa, Italy
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Favre C, Menconi MC, Nardi M, Casazza G, Oliveri F, Macchia P, Bonino F, Brunetto MR. Horse antilymphocytic globulin in hepatitis B exacerbation after bone marrow transplantation adoptive immunity transfer. Bone Marrow Transplant 2004; 33:1057-9. [PMID: 15048140 DOI: 10.1038/sj.bmt.1704471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We describe the case of a HBsAg+, HBeAg+ carrier, treated with lamivudine, who experienced exacerbation of hepatitis after BMT from an anti-HBs+, anti-HBc+, anti-HBe+ donor. The serological profile of the donor and the timing of exacerbation suggested that the adoptive immunity transfer played a major pathogenetic role. Antilymphocyte globulin administration resulted in resolution of hepatitis and seroconversion to anti-HBs+. Therapy aimed at blocking the effector arm of liver damage could represent a novel approach to avoid the risk of progression to fulminant hepatitis without hampering the chances of recovery from hepatitis B.
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Affiliation(s)
- C Favre
- Unità Trapianto di Midollo, Clinica Pediatrica I, Via Roma 67, 56126 Pisa, Italy.
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Abstract
The aim of antiviral therapy of chronic hepatitis B is to control Hepatitis B Virus (HBV) replication and to cure liver disease avoiding the progression of chronic hepatitis to cirrhosis and the end stage complications of cirrhosis. HBeAg/anti-HBe seroconversion is the hallmark of response in hepatitis B "e" antigen (HBeAg) positive patients. In the patients with antibody against HBeAg (anti-HBe positive) the combination of HBV DNA and anti-HBc IgM tests provides adequate diagnostic accuracy. Patients with biochemical and/or histological disease activity are eligible to therapy. The drug choice is based on age, disease severity, risk of complications, side effects and compliance, particularly in anti-HBe positive patients where prolonged treatment is needed. Interferon (5-6 MU daily or 9-10 MU thrice weekly for 4-6 months) is the first line therapy for HBeAg positive patients and (5-6 MU thrice weekly for 12-24 months) for anti-HBe positive patients. When IFN is contraindicated or ineffective, Lamivudine (100 mg) or Adefovir Dipivoxil (10 mg) are given as long as 4-6 months after HBeAg/anti-HBe seroconversion or for long-term treatments in HBeAg positive non-responders and anti-HBe positive patients. Patients with more advanced forms of cirrhosis and portal hypertension are to be treated within liver transplantation programs. Fifteen to 30% of treated patients achieve sustained response and more than 60% of them experience long-term disease remission during therapy. In perspectives, currently available molecular and immunologic tools and modelling of viral dynamics will help to address the therapy issue with more complex, efficacious and individually tailored treatment schedules.
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Affiliation(s)
- M R Brunetto
- U.O. Gastroenterologia e Epatologia, Azienda Ospedaliera Pisana, Via Paradisa 2, 56124 Cisanello, Pisa, Italy.
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Bordiga S, Lamberti C, Ricchiardi G, Regli L, Bonino F, Damin A, Lillerud KP, Bjorgen M, Zecchina A. Electronic and vibrational properties of a MOF-5 metal–organic framework: ZnO quantum dot behaviour. Chem Commun (Camb) 2004:2300-1. [PMID: 15489990 DOI: 10.1039/b407246d] [Citation(s) in RCA: 263] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
UV-Vis DRS and photoluminescence (PL) spectroscopy, combined with excitation selective Raman spectroscopy, allow us to understand the main optical and vibrational properties of a metal-organic MOF-5 framework. A O(2-)Zn(2+)[rightward arrow] O(-)Zn(+) ligand to metal charge transfer transition (LMCT) at 350 nm, testifies that the Zn(4)O(13) cluster behaves as a ZnO quantum dot (QD). The organic part acts as a photon antenna able to efficiently transfer the energy to the inorganic ZnO-like QD part, where an intense emission at 525 nm occurs.
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Affiliation(s)
- S Bordiga
- Dipartimento di Chimica IFM and NIS centre of excellence, Via P. Giuria 7, I-10125, Torino, Italy.
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Galli-Stampino L, Pasqualini A, Pozzato G, Bonino F, Filipponi F, Mosca M, Masciopinto F, Abrignani S, Uematsu Y. Molecular analysis of V(H)I+ B lymphocytes in hepatitis C patients. Dig Liver Dis 2003; 35:788-94. [PMID: 14674669 DOI: 10.1016/s1590-8658(03)00452-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Hepatitis C virus infection is often associated with lymphoproliferative disorders such as essential mixed cryoglobulinemia and B-cell non-Hodgkin lymphoma, which show preferential expression of VHI family products. By analyzing immunoglobulin heavy chain usage, we addressed the question of whether or not clonal B-cell expansion occurrs in patients free of essential mixed cryoglobulinemia or non-Hodgkin lymphoma. PATIENTS AND METHODS Four hepatitis C virus-positive patients, all undergoing liver transplantation, were studied. Peripheral blood, intra-hepatic, and lymph node lymphocytes were used as a source of B cells. A patient with hepatocellular carcinoma and fresh blood from four healthy donors were used as negative controls. VHI family sequences were cloned and analyzed by reverse transcription-polymerase chain reaction. RESULTS Immunoglobulin heavy chain sequences from clonally expanded B lymphocytes were identified in three out of four hepatitis C virus-infected patients. The clonally expanded B lymphocyte populations showed a broad spectra of immunoglobulin heavy chain gene usage. CONCLUSIONS HCV infection can induce B-cell expansion with larger clonal variation. The restricted V gene usage in hepatitis C virus-associated non-Hodgkin lymphoma suggests that there may be selection mechanisms to develop non-Hodgkin lymphoma from non-malignant, clonally expanded B-cell populations in hepatitis C virus-infected patients.
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Affiliation(s)
- L Galli-Stampino
- Department of Immunology, IRIS, Chiron S.r.l., Via Fiorentina, 1, 1-53100 Siena, Italy
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Ciccorossi P, Filipponi F, Oliveri F, Campani D, Colombatto P, Bonino F, Campa M, Maltinti G, Mosca F, Brunetto MR. Increasing serum levels of IgM anti-HCV are diagnostic of recurrent hepatitis C in liver transplant patients with ALT flares. J Viral Hepat 2003; 10:168-73. [PMID: 12753334 DOI: 10.1046/j.1365-2893.2003.00425.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Recurrent hepatitis and acute rejection share common features which make difficult for diagnosis in liver transplant hepatitis C virus (HCV) positive patients. We studied the usefulness of quantitative monitoring of HCV RNA and immunoglobulin (Ig)M anti-HCV in the differential diagnosis between recurrent hepatitis and acute rejection in 98 consecutive anti-HCV positive liver transplant patients. Aminotransferase levels, serum HCV RNA and IgM anti-HCV were measured at the time of transplantation and monthly thereafter. A liver biopsy (LB) was obtained when serum aminotransferase levels increased to twice or more than normal. During a mean follow-up of 16 months 86 aminotransferase flares were observed. Histology was compatible with recurrent hepatitis C in 44 cases and with acute rejection in 28, doubtful in 14. The fluctuations of HCV RNA serum levels were not significantly different in the three groups. Serum IgM anti-HCV levels increased (from negative to positive or with value variations > or = 0.18) in 36 of 44 cases with recurrent hepatitis C at the time of alanine aminotransferase (ALT) flare. IgM anti-HCV remained unchanged in all rejection cases (P < 0.001), but increased in 10 of 11 histologically doubtful cases that were diagnosed as hepatitis at the second LB. Increasing serum levels of IgM anti-HCV at the time of ALT flares are significantly associated with recurrent hepatitis C in liver transplant patients. The quantitative monitoring of IgM anti-HCV appears to be an additional diagnostic tool for distinguishing recurrent hepatitis C from acute graft rejection with a 100% specificity; 100% positive predictive value and 88.9% diagnostic accuracy.
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Affiliation(s)
- P Ciccorossi
- U.O. Gastroenterologia e Epatologia, Azienda Ospedaliera Pisana e Università di Pisa, via Paradisa 2, Ospedale Cisanello, 56124 Pisa, Italy
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31
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Prati D, Gatti S, Bonino F. Liver transplantation in genetic defects of hepatocytes. Transplant Proc 2003; 35:1049. [PMID: 12947854 DOI: 10.1016/s0041-1345(03)00263-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- D Prati
- Centro Trasfusionale e di Immunologia dei Trapianti, IRCCS Ospedale Maggiore, Via F. Sforza 35, 20122 Milano, Italy.
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Ciccorossi P, Filipponi F, Oliveri F, Coco B, Colombatto P, Giannotti A, Bonino F, Campa M, Mosca F, Brunetto MR. Impact of antiviral treatment on recurrence of hepatitis B virus infection and disease. Transplant Proc 2003; 35:1028-9. [PMID: 12947846 DOI: 10.1016/s0041-1345(03)00255-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- P Ciccorossi
- U.O. Gastroenterologia e Epatologia, Azienda Ospedaliera Pisana e Università di Pisa, Pisa, Italy
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33
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Bordiga S, Damin A, Bonino F, Ricchiardi G, Zecchina A, Tagliapietra R, Lamberti C. Resonance Raman effects in TS-1: the structure of Ti(iv) species and reactivity towards H2O, NH3 and H2O2: an in situ studyPresented at the International Congress on Operando Spectroscopy, Lunteren, The Netherlands, March 2-6, 2003. Phys Chem Chem Phys 2003. [DOI: 10.1039/b306041c] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Lamberti C, Bordiga S, Bonino F, Prestipino C, Berlier G, Capello L, D'Acapito F, Llabrés i Xamena FX, Zecchina A. Determination of the oxidation and coordination state of copper on different Cu-based catalysts by XANES spectroscopy in situ or in operando conditions. Phys Chem Chem Phys 2003. [DOI: 10.1039/b305810g] [Citation(s) in RCA: 153] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Bonino F, Conte P. Colorectal cancer. A novel approach to adjuvant chemotherapy with fluoropyrimidines. Dig Liver Dis 2002; 34:396-7. [PMID: 12132785 DOI: 10.1016/s1590-8658(02)80035-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- F Bonino
- Ospedale Maggiore, Policlinico, IRCCS, Milan, Italy.
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Ciccorossi P, Filipponi F, Oliveri F, Romagnoli J, Urbani L, Marciano E, Catalano G, Bonino F, Mosca F, Brunetto MR. Usefulness of IgM anti-HCV in differential diagnosis between recurrent hepatitis C and acute rejection in liver transplant patients. Transplant Proc 2001; 33:3641-2. [PMID: 11750546 DOI: 10.1016/s0041-1345(01)02566-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- P Ciccorossi
- Gastroenterology and Hepatology Unit, University of Pisa and Azienda Ospedaliera Pisana, Pisa, Italy
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Bonino F, Colombatto P, Civitano L, Coco B, Oliveri F, Brunetto MR. Hepatitis C virus infection: early diagnosis and identification of response to antiviral therapy. Expert Rev Mol Diagn 2001; 1:310-4. [PMID: 11901836 DOI: 10.1586/14737159.1.3.310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Early diagnosis of hepatitis C infection and early identification of virologic response to antiviral therapy represent major hallmarks of the quality of a case. They contribute to reducing the risk of hepatitis C infection from blood product and improve disease management in patients treated with antivirals. Some of the current issues and perspectives involved in detection and quantification of viral load during the incubation phase of infection and monitoring the early phase of antiviral therapy are discussed.
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Affiliation(s)
- F Bonino
- Azienda Ospedaliera Universitaria Pisana, Via Paradisa 2, 56124 Cisanello Pisa, Italy.
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Abstract
The vascular endothelial growth factor (VEGF) is implicated in the progression of cancers. Its expression is well correlated with tumor growth and metastases. The availability of a rapid and sensitive method to detect the amounts of VEGF mRNA in biological samples of limited size, very small biopsies, or samples containing relatively few cells could provide an interesting prognostic tool for clinicians. We have developed an RT-PCR method that allows us to detect the VEGF mRNA from as little as 3 micrograms total mRNA. We have also shown that this protocol can be generalized to all cell lines tested. This method constitutes a very potent tool for the analysis of VEGF mRNA expression in different contexts.
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MESH Headings
- Adenocarcinoma/pathology
- Animals
- Binding, Competitive
- Biopsy
- Cell Line/drug effects
- Cell Line/metabolism
- Colonic Neoplasms/pathology
- Cricetinae
- DNA Primers/chemistry
- DNA Primers/genetics
- DNA, Complementary/genetics
- Endothelial Growth Factors/biosynthesis
- Endothelial Growth Factors/genetics
- Estradiol/pharmacology
- Gene Expression Regulation/drug effects
- Humans
- Lymphokines/biosynthesis
- Lymphokines/genetics
- Mice
- Microchemistry/methods
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Neovascularization, Pathologic/genetics
- Oligodeoxyribonucleotides/chemistry
- Oligodeoxyribonucleotides/genetics
- RNA Splicing
- RNA, Messenger/analysis
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- RNA, Neoplasm/analysis
- RNA, Neoplasm/biosynthesis
- RNA, Neoplasm/genetics
- Rats
- Reference Standards
- Reverse Transcriptase Polymerase Chain Reaction
- Sequence Deletion
- Tumor Cells, Cultured/drug effects
- Tumor Cells, Cultured/metabolism
- Vascular Endothelial Growth Factor A
- Vascular Endothelial Growth Factors
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Affiliation(s)
- F Bonino
- CNRS UMR 6543, Centre Antoine Lacassagne, 33 Avenue de Valombrose, 06189 Nice, France
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Artuso F, Picardi G, Bonino F, Decker F, Bencic S, Surca Vuk A, Opara Krasovec U, Orel B. Fe-containing CeVO4 films as Li intercalation transparent counter-electrodes. Electrochim Acta 2001. [DOI: 10.1016/s0013-4686(01)00409-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mazzaferro V, Tagger A, Schiavo M, Regalia E, Pulvirenti A, Ribero ML, Coppa J, Romito R, Burgoa L, Zucchini N, Urbanek T, Bonino F. Prevention of recurrent hepatitis C after liver transplantation with early interferon and ribavirin treatment. Transplant Proc 2001; 33:1355-7. [PMID: 11267325 DOI: 10.1016/s0041-1345(00)02508-2] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- V Mazzaferro
- Department of Surgery, Gastrointestinal Surgery and Liver Transplantation Unit, Pathology Unit, National Cancer Institute, Milan, Italy
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Filipponi F, Bonino F, Mosca F. Foreword. Transplant Proc 2000; 32:2691-2. [PMID: 11134764 DOI: 10.1016/s0041-1345(00)01844-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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43
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Bonino F, Colombatto P, Brunetto MR. The hepatitis C virus carrier with "persistently" normal serum transaminases: a misleading clinical issue. Dig Liver Dis 2000; 32:603-4. [PMID: 11142559 DOI: 10.1016/s1590-8658(00)80843-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- F Bonino
- Gastrointestinal Liver Unit, Pisa Hospital, Italy.
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44
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Colombatto P, Baldi M, Oliveri F, Randone A, Bonino F, Brunetto MR. Tailoring interferon dose and monitoring viral load in hepatitis C virus genotype 1b infected patients: a pilot study. Dig Liver Dis 2000; 32:211-6. [PMID: 10975771 DOI: 10.1016/s1590-8658(00)80823-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Complete [biochemical and virological) primary response remains the first goal of any antiviral therapy and its early assessment could be particularly useful in the management of the high viral load, genotype 1b infected patients, who have the worst chance of response. We evaluated whether tailoring interferon dose according to pre-treatment viral load and early monitoring of quantitative HCV-RNA could either improve or predict the results of recombinant alpha-2a interferon treatment in these patients. PATIENTS Fifty-three consecutive genotype 1b HCV-infected patients, stratified in two groups by viral load (cut off 6 MEq/ml), received randomly 6 or 9 MU of recombinant alpha-2a interferon thrice weekly for 6 months, followed by 6 MU for another 6 months. METHODS HCV-RNA was measured [b-DNA] assay) two months apart prior to therapy, at baseline, after 2 weeks of therapy and monthly thereafter. RESULTS In the high viraemic group, complete primary response was observed in 80% of patients treated with high dose recombinant alpha 2a interferon and only in 14.3% of low dose treated patients [p<0.03]. In low viraemic patients, complete primary response was 53. 8% in low dose patients and 80% (8 out of 10) in the high dose group. Sustained response was 60% in high viraemic patients treated with high dose and absent in those treated with low dose [p<0.05]. One log viral load decrease at 2 or 4 weeks showed 0.87 and 0.80 positive predictive values, 0.95 and 1.0 negative predictive values with 96% and 100% sensitivities and 83% and 70% specificities. CONCLUSIONS 6 MU recombinant alpha-2a interferon thrice weekly schedules were completely ineffective in the large majority (85.7%) of patients with viral load above 6 million HCV-RNA copies/ml and the treatment failure could be predicted by lack of one log viral load decrease after 2-4 weeks of treatment.
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Affiliation(s)
- P Colombatto
- Gastroenterology and Hepatology Unit, Spedali Riuniti Santa Chiara, Azienda Ospedaliera Pisana, Cisanello Hospital, Pisa, Italy
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Affiliation(s)
- F Filipponi
- General and Transplant Unit, Pisa University, Italy
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46
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Abstract
The most cost effective strategy for antiviral therapy of chronic hepatitis C is the earliest identification and treatment of patients at risk of developing life-threatening complications such as hepatocellular carcinoma. Liver fibrosis represents the best predictor of unfavourable outcome. However, some patients with liver fibrosis already have a histological diagnosis of cirrhosis and there is a debate about whether alpha interferon is still effective in lowering the risk of disease progression in such patients. We identified some of the reasons that may explain seemingly contradictory results of studies addressing this issue. A major cause appears the beginning of follow-up at different starting points during the course of clinically compensated cirrhosis. Some investigators recruited patients because of anti-HCV positivity and elevated transaminases and found cirrhosis only at histology, whereas others recruited patients because cirrhosis had been diagnosed. Ultrasonographic signs of portal hypertension appear to be a useful tool to distinguish the two phases of the disease. Another important cause of reduced response rate to antiviral therapy is the presence of cofactors of liver disease and hepatocellular carcinoma such as present or past HBV infection. Early phase cirrhotics without cofactors appear to benefit most from therapy with a significant lower risk for hepatocellular carcinoma than untreated controls. The therapeutic decision in these patients could be the same as in patients with chronic hepatitis C without cirrhosis. In contrast, the efficacy of interferon remains questionable in HCV patients who already have ultrasonographic signs of portal hypertension and/or past or present HBV coinfection. Prospective, randomized clinical trials should be performed after stratification of these patients for stage and cofactors of liver disease.
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Affiliation(s)
- F Bonino
- Gastroenterologia & Epatologia, Spedali Riuniti di Santa Chiara, Azienda Ospedaliera Pisana, Cisanello, Pisa, Italy.
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Brunetto MR, Oliveri F, Bonino F. The impact of hepatitis B virus (HBV) and hepatitis C virus (HCV) : from research to clinical practice. Methods Mol Med 2000; 45:99-112. [PMID: 21341050 DOI: 10.1385/1-59259-079-9:99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Hepatic carcinogenesis is a complex process that involves profound alterations of the hepatocyte genome (1,2) and has been graded in three stages: induction, promotion, and progression in the animal models (3-5). In recent years, the use of molecular biology techniques have improved significantly the understanding of the mechanisms (alteration of gene and gene expression) that occur during the different steps of carcinogenesis.
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Affiliation(s)
- M R Brunetto
- Unitá Operativa, Gastroenterologia ed Epatologia, Pisa, Italy
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48
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Colombatto P, Brunetto MR, Kansopon J, Oliveri F, Maina A, Aragon U, Bortoli ML, Scatena F, Baicchi U, Houghton M, Bonino F, Weiner AJ. High prevalence of G1 and G2 TT-virus infection in subjects with high and low blood exposure risk: identification of G4 isolates in Italy. J Hepatol 1999; 31:990-6. [PMID: 10604571 DOI: 10.1016/s0168-8278(99)80310-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
BACKGROUND/AIMS A non-enveloped single-stranded DNA virus (TTV) was detected in Japanese patients with fulminant hepatitis (47%) and chronic liver disease of unknown etiology (46%) more frequently than in blood donors (12%). Subsequent studies, however, questioned the association of TTV with liver disease. We further investigated the role of this novel virus in liver diseases. METHODS We tested 106 patients and 102 blood donors for TTV by polymerase chain reaction using conserved region primers. RESULTS TTV DNA was found in 19 of 102 volunteer blood donors (18.6%) and in 27 of 106 patients with liver disease (25.5%): 10 of 28 chronic hepatitis B (35.7%), 9 of 28 chronic hepatitis C (32.1%) and 8 of 50 (16%) cryptogenic liver disease patients. Previous interferon treatment was not associated with a significantly lower prevalence of TTV infection. TTV prevalence was higher in patients with blood exposure (42.8%, 6/14) than in patients without risk factors (21.4%, 18/84). Four of five patients (80%) with HBV familial infection and without blood exposure were also TTV positive. Partial nucleotide sequences from 3 Italian isolates diverged more than 30% from the 2 prototype genotypes G1 and G2 and were 88% homologous to the recently described genotype G4. CONCLUSIONS G1 and G2 TTV are common in Italy and in the USA in liver disease patients and in blood donors. The prevalence is high in patients with blood exposure but also in subjects without risk factors; other routes of transmission should therefore be considered.
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Affiliation(s)
- P Colombatto
- Gastroenterology and Hepatology Unit, Spedali Riuniti Santa Chiara, Azienda Ospedaliera Pisana, Cisanello, Pisa, Italy
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49
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Abstract
The p42 and p44 mitogen-activated protein kinases (MAPKs), also called Erk2 and Erk1, respectively, have been implicated in proliferation as well as in differentiation programs. The specific role of the p44 MAPK isoform in the whole animal was evaluated by generation of p44 MAPK-deficient mice by homologous recombination in embryonic stem cells. The p44 MAPK-/- mice were viable, fertile, and of normal size. Thus, p44 MAPK is apparently dispensable and p42 MAPK (Erk2) may compensate for its loss. However, in p44 MAPK-/- mice, thymocyte maturation beyond the CD4+CD8+ stage was reduced by half, with a similar diminution in the thymocyte subpopulation expressing high levels of T cell receptor (CD3high). In p44 MAPK-/- thymocytes, proliferation in response to activation with a monoclonal antibody to the T cell receptor in the presence of phorbol myristate acetate was severely reduced even though activation of p42 MAPK was more sustained in these cells. The p44 MAPK apparently has a specific role in thymocyte development.
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MESH Headings
- Animals
- Antibodies, Monoclonal
- Antigens, CD/analysis
- CD3 Complex/immunology
- Cell Differentiation
- Cell Division
- Cells, Cultured
- DNA/biosynthesis
- Enzyme Activation
- Gene Targeting
- Isoenzymes/genetics
- Isoenzymes/metabolism
- Mice
- Mice, Knockout
- Mitogen-Activated Protein Kinase 1/metabolism
- Mitogen-Activated Protein Kinase 3
- Mitogen-Activated Protein Kinases/deficiency
- Mitogen-Activated Protein Kinases/genetics
- Mitogen-Activated Protein Kinases/metabolism
- Phosphorylation
- Polymorphism, Restriction Fragment Length
- Receptors, Antigen, T-Cell, alpha-beta/analysis
- Receptors, Antigen, T-Cell, alpha-beta/physiology
- T-Lymphocyte Subsets/cytology
- T-Lymphocyte Subsets/enzymology
- T-Lymphocyte Subsets/immunology
- Tetradecanoylphorbol Acetate/pharmacology
- Thymus Gland/cytology
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Affiliation(s)
- G Pagès
- Institute of Signaling, Developmental Biology and Cancer Research, CNRS UMR 6543, Centre A. Lacassagne, 33 Avenue de Valombrose, 06189 Nice, France.
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50
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Abstract
During hepatitis B virus (HBV) infection, selection and takeover of mutant viruses are frequent events driven by both humoral and cellular host-immune response and antiviral therapy. Therefore, dynamic studies of the variations of viral mutants over time within the overall viral population in relation with the host-virus interactions are extremely important to better understand the biological and pathogenic role of each mutant. With these premises, we review the more frequent mutations detected in each of the 4 open reading frames of HBV. A detailed analysis of the pathobiologic implications of pre-C region mutations which suppress the expression of the hepatitis B 'e' antigen, will be presented, as these mutations induce a specific change in virus biology and the variations of the ratio between wild-type and mutant correlate with significant events in host-virus interactions.
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Affiliation(s)
- M R Brunetto
- UO Gastroenterologia ed Epatologia, Azienda Ospedaliera Pisana, Spedali Riuniti di Santa Chiara, Pisa, Italy
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