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García-Pola M, Rodríguez-Fonseca L, Suárez-Fernández C, Sanjuán-Pardavila R, Seoane-Romero J, Rodríguez-López S. Bidirectional Association between Lichen Planus and Hepatitis C-An Update Systematic Review and Meta-Analysis. J Clin Med 2023; 12:5777. [PMID: 37762719 PMCID: PMC10531646 DOI: 10.3390/jcm12185777] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/21/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Lichen planus (LP) is a chronic, inflammatory mucocutaneous disorder associated with systemic diseases such as hepatitis C (HCV). The objective of this study is to evaluate the association between LP and HCV bidirectionally through a systematic review and meta-analysis. A comprehensive search of studies published was performed in the databases of PubMed, Embase, and Web of Science. Out of 18,491 articles, 192 studies were included. The global prevalence of HCV positive (HCV+) in LP patients registered from 143 studies was 9.42% [95% confidence interval (CI), 7.27-11.58%], and from these, 84 studies showed HCV+ 4-fold more frequent in LP than a control group (OR, 4.48; 95% CI, 3.48-5.77). The global prevalence of LP in patients HCV+ recorded from 49 studies was 7.05% (95% CI, 4.85-9.26%), and from these, 15 registered a 3-fold more LP in HCV (OR, 3.65; 95% CI, 2.14-6.24). HCV+ in LP patients showed great geographic variability (OR, 2.7 to 8.57), and the predominantly cutaneous location was higher (OR, 5.95) than the oral location (OR, 3.49). LP in HCV+ patients was more frequent in the Eastern Mediterranean (OR, 5.51; 95% CI, 1.40-15.57). There is a higher prevalence of HCV+ in LP and vice versa than in the control group, especially in certain geographical areas that should be taken into consideration when doing screening in countries with an upper prevalence of HCV among the general population.
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Affiliation(s)
- María García-Pola
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine and Health Sciences, University of Oviedo, 33004 Oviedo, Spain; (L.R.-F.); (C.S.-F.); (R.S.-P.); (S.R.-L.)
| | - Lucia Rodríguez-Fonseca
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine and Health Sciences, University of Oviedo, 33004 Oviedo, Spain; (L.R.-F.); (C.S.-F.); (R.S.-P.); (S.R.-L.)
| | - Carlota Suárez-Fernández
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine and Health Sciences, University of Oviedo, 33004 Oviedo, Spain; (L.R.-F.); (C.S.-F.); (R.S.-P.); (S.R.-L.)
| | - Raquel Sanjuán-Pardavila
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine and Health Sciences, University of Oviedo, 33004 Oviedo, Spain; (L.R.-F.); (C.S.-F.); (R.S.-P.); (S.R.-L.)
| | - Juan Seoane-Romero
- Department of Surgery and Medical-Surgical Specialties, School of Medicine and Dentistry, University of Santiago de Compostela, 15780 Santiago de Compostela, Spain;
| | - Samuel Rodríguez-López
- Department of Surgery and Medical-Surgical Specialties, Faculty of Medicine and Health Sciences, University of Oviedo, 33004 Oviedo, Spain; (L.R.-F.); (C.S.-F.); (R.S.-P.); (S.R.-L.)
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Dybowska D, Zarębska-Michaluk D, Rzymski P, Berak H, Lorenc B, Sitko M, Dybowski M, Mazur W, Tudrujek-Zdunek M, Janocha-Litwin J, Janczewska E, Klapaczyński J, Parfieniuk-Kowerda A, Piekarska A, Sobala-Szczygieł B, Dobrowolska K, Pawłowska M, Flisiak R. Real-world effectiveness and safety of direct-acting antivirals in hepatitis C virus patients with mental disorders. World J Gastroenterol 2023; 29:4085-4098. [PMID: 37476581 PMCID: PMC10354581 DOI: 10.3748/wjg.v29.i25.4085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/01/2023] [Accepted: 04/28/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND It is estimated that 58 million people worldwide are infected with the hepatitis C virus (HCV). Patients with severe psychiatric disorders could not be treated with previously available interferon-based therapies due to their unfavorable side effect profile. This has changed with the introduction of direct-acting antivirals (DAA), although their real-life tolerance and effectiveness in patients with different psychiatric disorders remain to be demonstrated. AIM To evaluate the effectiveness and safety of DAA in patients with various mental illnesses. METHODS This was a retrospective observational study encompassing 14272 patients treated with DAA for chronic hepatitis C in 22 Polish hepatology centers, including 942 individuals diagnosed with a mental disorder (anxiety disorder, bipolar affective disorder, depression, anxiety-depressive disorder, personality disorder, schizophrenia, sleep disorder, substance abuse disorder, and mental illness without a specific diagnosis). The safety and effectiveness of DAA in this group were compared to those in a group without psychiatric illness (n = 13330). Antiviral therapy was considered successful if serum ribonucleic acid (RNA) of HCV was undetectable 12 wk after its completion [sustained virologic response (SVR)]. Safety data, including the incidence of adverse events (AEs), serious AEs (SAEs), and deaths, and the frequency of treatment modification and discontinuation, were collected during therapy and up to 12 wk after treatment completion. The entire study population was included in the intent-to-treat (ITT) analysis. Per-protocol (PP) analysis concerned patients who underwent HCV RNA evaluation 12 wk after completing treatment. RESULTS Among patients with mental illness, there was a significantly higher percentage of men, treatment-naive patients, obese, human immunodeficiency virus and hepatitis B virus-coinfected, patients with cirrhosis, and those infected with genotype 3 (GT3) while infection with GT1b was more frequent in the population without psychiatric disorders. The cure rate calculated PP was not significantly different in the two groups analyzed, with a SVR of 96.9% and 97.7%, respectively. Although patients with bipolar disorder achieved a significantly lower SVR, the multivariate analysis excluded it as an independent predictor of treatment non-response. Male sex, GT3 infection, cirrhosis, and failure of previous therapy were identified as independent negative predictors. The percentage of patients who completed the planned therapy did not differ between groups with and without mental disorders. In six patients, symptoms of mental illness (depression, schizophrenia) worsened, of which two discontinued treatments for this reason. New episodes of sleep disorders occurred significantly more often in patients with mental disorders. Patients with mental illness were more frequently lost to follow-up (4.2% vs 2.5%). CONCLUSION DAA treatment is safe and effective in HCV-infected patients with mental disorders. No specific psychiatric diagnosis lowered the chance of successful antiviral treatment.
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Affiliation(s)
- Dorota Dybowska
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Nicolaus Copernicus University, Bydgoszcz 85-030, Poland
| | - Dorota Zarębska-Michaluk
- Department of Infectious Diseases and Allergology, Jan Kochanowski University, Kielce 25-317, Poland
- Department of Infectious Diseases, Provincial Hospital, Kielce 25-317, Poland
| | - Piotr Rzymski
- Department of Environmental Medicine, University of Medical Sciences, Poznań 60-806, Poland
- Integrated Science Association, Universal Scientific Education and Research Network, Poznań 60-806, Poland
| | - Hanna Berak
- Outpatient Clinic, Hospital for Infectious Diseases in Warsaw, Warsaw 01-201, Poland
| | - Beata Lorenc
- Pomeranian Center of Infectious Diseases, Medical University, Gdańsk 80-214, Poland
| | - Marek Sitko
- Department of Infectious and Tropical Diseases, Jagiellonian University, Kraków 31-088, Poland
| | - Michał Dybowski
- Utrecht University School of Economics, Utrecht University, Utrecht 3584 EC, Netherlands
| | - Włodzimierz Mazur
- Clinical Department of Infectious Diseases, Medical University of Silesia, Chorzów 41-500, Poland
| | | | - Justyna Janocha-Litwin
- Department of Infectious Diseases and Hepatology, Medical University of Wrocław, Wrocław 50-367, Poland
| | - Ewa Janczewska
- Department of Basic Medical Sciences, Faculty of Public Health in Bytom, Medical University of Silesia, Katowice 40-007, Poland
| | - Jakub Klapaczyński
- Department of Internal Medicine and Hepatology, Central Clinical Hospital of the Ministry of Internal Affairs and Administration, Warsaw 00-241, Poland
| | - Anna Parfieniuk-Kowerda
- Department of Infectious Diseases and Hepatology, Medical University of Białystok, Białystok 15-089, Poland
| | - Anna Piekarska
- Department of Infectious Diseases and Hepatology, Medical University of Łódź, Łódź 91-347, Poland
| | - Barbara Sobala-Szczygieł
- Department of Infectious Diseases and Hepatology, Medical University of Silesia, Bytom 41-902, Poland
| | | | - Malgorzata Pawłowska
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Nicolaus Copernicus University, Bydgoszcz 85-030, Poland
| | - Robert Flisiak
- Department of Infectious Diseases and Hepatology, Medical University of Białystok, Białystok 15-089, Poland
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Jelski W, Strumnik A, Orywal K, Lapinski TW, Swiderska M, Szmitkowski M. Activity of alcohol dehydrogenase isoenzymes and aldehyde dehydrogenase in sera of patients with hepatitis C. Arch Med Sci 2018; 14:281-287. [PMID: 29593800 PMCID: PMC5868663 DOI: 10.5114/aoms.2016.60406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/30/2015] [Indexed: 01/15/2023] Open
Abstract
INTRODUCTION The changes of enzyme activity in the hepatocytes in the course of different liver diseases are reflected by increase of the corresponding enzyme activity in the plasma. For example, the activities of alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) correlate with the severity of the condition during cirrhosis. In this study we measured the activity of ADH isoenzymes and ALDH in the sera of patients with hepatitis C. MATERIAL AND METHODS Serum samples were taken from 60 patients suffering from viral hepatitis C and from 66 control subjects. Total ADH activity and class III and IV isoenzymes were measured by the photometric method and ALDH activity, ADH I and II by the fluorometric method. RESULTS The ADH activity was significantly higher in patients with hepatitis C than in healthy (p < 0.001). The total activity of ADH was 1284 mU/l in patients, and 745 mU/l (controls). The activity of isoenzymes classes ADH I and ADH II in the hepatitis C group increased respectively 55% (4.24 vs. 1.88 mU/l; p < 0.001) and 47% (26.63 vs. 14.11 mU/l; p < 0.001) in the comparison to the control. There was significant increase in the activity of ADH I isoenzyme (4.96 vs. 3.81 mU/l; p < 0.001) and ADH total (1833 vs. 1105 mU/l; p < 0.001) in patients with high viral load in comparison to patients with low viral load. CONCLUSIONS The activity of class I and II ADH isoenzymes in the sera of patients with hepatitis C is increased, and it seems to be caused by the release of these isoenzymes from damaged liver cells.
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Affiliation(s)
- Wojciech Jelski
- Department of Biochemical Diagnostics, Medical University of Bialystok, Bialystok, Poland
| | | | - Karolina Orywal
- Department of Biochemical Diagnostics, Medical University of Bialystok, Bialystok, Poland
| | - Tadeusz W Lapinski
- Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Bialystok, Poland
| | - Magdalena Swiderska
- Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Bialystok, Poland
| | - Maciej Szmitkowski
- Department of Biochemical Diagnostics, Medical University of Bialystok, Bialystok, Poland
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Nuño Solinís R, Arratibel Ugarte P, Rojo A, Sanchez Gonzalez Y. Value of Treating All Stages of Chronic Hepatitis C: A Comprehensive Review of Clinical and Economic Evidence. Infect Dis Ther 2016; 5:491-508. [PMID: 27783223 PMCID: PMC5125137 DOI: 10.1007/s40121-016-0134-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION The goal of chronic hepatitis C (CHC) treatment is to achieve a sustained virologic response (SVR). The new generation of direct-acting antivirals (DAAs) offers 90-100% SVR rates. However, access to these treatments is generally limited to patients with advanced liver disease. The aim of this review is to provide an overview of the clinical and economic benefits of achieving SVR and to better understand the full value of CHC treatment in all stages of liver disease. METHODS A comprehensive literature review was performed using the PubMed, Embase, and Cochrane library databases to identify articles examining the clinical, economic, and quality of life benefits associated with SVR. Articles were limited to those published in English language from January 2006 through January 2016. Inclusion criteria were (1) patients with CHC, (2) retrospective and prospective studies, (3) reporting of mortality, liver morbidity, extrahepatic manifestations (EHMs), and economic outcomes and, (4) availability of an abstract or full-text publication. RESULTS Overall this review identified 354 studies involving more than 500,000 CHC patients worldwide. Evidence from 38 studies (n = 73,861) shows a significant mortality benefit of achieving SVR in patients with all stages of fibrosis. Long-term studies with follow-up of 5-12 years suggest that, particularly among non-cirrhotic patients, there is a significant decrease in mortality in SVR versus non-SVR groups. Ninety-nine studies conducted in 235,891 CHC patients in all stages of fibrosis show that SVR reduces liver-related mortality, incidence of hepatocellular carcinoma (HCC), and decompensation. A total of 233 studies show that chronic HCV infection is associated with several serious EHMs, some of which can have high mortality. Evidence from four modeling studies shows that delaying treatment to CHC patient populations could significantly increase mortality, morbidity, and medical costs. CONCLUSIONS There is a robust body of evidence demonstrating diverse sources of value from achieving SVR in all stages of liver disease. While access to treatment is generally limited to late-stage patients, less restrictive treatment strategies that target HCV eradication have the potential to abate the burdens of mortality, liver morbidity and extrahepatic manifestations, and the associated healthcare costs.
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Affiliation(s)
- Roberto Nuño Solinís
- Deusto Business School Health, University of Deusto, Bilbao, Basque Country, Spain
| | | | - Ander Rojo
- Deusto Business School Health, University of Deusto, Bilbao, Basque Country, Spain
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Incidence of thyroid disorders in mixed cryoglobulinemia: Results from a longitudinal follow-up. Autoimmun Rev 2016; 15:747-51. [DOI: 10.1016/j.autrev.2016.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 03/04/2016] [Indexed: 02/06/2023]
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Rogalska-Płońska M, Lapinski TW, Grzeszczuk A, Parfieniuk-Kowerda A, Flisiak R. Influence of HCV and HIV on development of cryoglobulinemia. Viral Immunol 2015; 28:145-52. [PMID: 25723551 DOI: 10.1089/vim.2014.0114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Cryoglobulinemic syndrome refers to a systemic inflammatory process that involves small and medium-sized vessels accompanied by multi-organ damage. The aim of the present study was to determine the incidence of cryoglobulinemia among patients infected with human immunodeficiency virus (HIV), hepatitis C virus (HCV) and HCV/HIV co-infection, as well as evaluation of cryoglobulinemia type. The association was evaluated between cryoglobulinemia and clinical symptoms, selected biochemical measures of liver and kidney function, virologic measures, as well as histopathological changes in the liver. One hundred and forty-one patients were enrolled (59 HCV mono-infected, 48 HIV mono-infected, and 34 HCV/HIV co-infected). Cryoglobulinemia was nearly five times less frequent among HIV mono-infected patients (10%) than HCV mono-infected (53%) and HCV/HIV co-infected patients (59%). Cryoglobulinemia was more frequent in patients infected with genotype 1 HCV than genotype 3 (63% vs. 46%, p=0.12). There was a lower incidence of cryoglobulinemia in HIV mono-infected patients treated with antiretroviral drugs (p=0.04). Cryoglobulinemia correlated with ALT activity (p=0.01) and HIV viral load (p<0.001). Symptoms were significantly more frequent among cryoglobulinemic patients than those without cryoglobulinemia (38% vs. 9%, p<0.001). The most common symptoms related to cryoglobulinemia, regardless of cryoglobulinemia type, were fatigue (38%), arthralgia (20%), polineuropathy (18%), and skin lesions (14%). In conclusion, HCV mono-infection and HCV/HIV co-infection, regardless of HCV genotype, are potent stimulators of cryoglobulinemia, with its symptomatic form occurring in about 40% of cases. Effective antiretroviral therapy seems to be protective against cryoglobulinemia development in HIV mono-infected patients.
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Shahin AA, Hussein H, Gaber W, Elbaz T, Salah El Din LA. Magnetic resonance sialography of the parotid glands in chronic hepatitis C virus patients with and without vasculitis. Int J Rheum Dis 2014; 20:376-382. [PMID: 25533738 DOI: 10.1111/1756-185x.12493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM Hepatitis C virus (HCV) is sialotropic. The pathogenesis of sicca manifestations in patients with chronic HCV infection is not fully understood. We aimed to detect changes in magnetic resonance sialography (MRS) of HCV patients with and without vasculitis. METHOD We studied 32 HCV patients (19 female, mean age 48.8 ± 10.3 years) and 20 age- and gender-matched healthy controls. Half of the patients had vasculitis. Demographic, clinical and serological data were prospectively evaluated. In patients with vasculitis, the disease activity was assessed by the Birmingham Vasculitis Activity Score (BVAS). MRS was performed on all patients and controls. RESULTS Abnormal MRS was found in 25% of patients, (6/16 and 2/16 in patients with and without vasculitis, respectively). Among patients with vasculitis, those with abnormal MRS had longer disease duration, higher leukocytic and lymphocytic counts and more frequent cryoglobulinemia (P < 0.01, P < 0.001, P < 0.001 and P < 0.008, respectively), while BVAS scores were not significantly different. CONCLUSION Among HCV patients with vasculitis, longer disease duration and cryoglobulinemia were associated with abnormal findings on MRS. To confirm our results, we propose larger-scale, multicentre studies with longer evaluation periods.
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Affiliation(s)
- Amira A Shahin
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hanan Hussein
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Wafaa Gaber
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Tamer Elbaz
- Department of Endemic Hepatogastroenterology, Faculty of Medicine, Cairo University, Cairo, Egypt
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Fallahi P, Ferrari SM, Giuggioli D, Manfredi A, Mancusi C, Fabiani S, Centanni M, Marchi S, Ferri C, Antonelli A. Thyroid involvement in hepatitis C - associated mixed cryoglobulinemia. Hormones (Athens) 2014; 13:16-23. [PMID: 24722124 DOI: 10.1007/bf03401317] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The prevalence and clinical features of thyroid involvement in patients with hepatitis C virus-associated mixed cryoglobulinemia (MC+HCV) have been reviewed. DESIGN A PubMed Medline search was conducted through December 2011 to identify all studies that reported thyroid involvement in MC+HCV patients. Reference lists of the papers initially detected were manually searched to identify additional relevant reports. Studies had to contain sufficient and clear information to be included. RESULTS In MC+HCV patients, the following thyroid autoimmune abnormalities were significantly more frequent than in controls: high levels of serum anti-thyroperoxidase autoantibody (AbTPO); high levels of serum AbTPO and/or anti-thyroglobulin autoantibody; humoral and ultrasonographical signs of thyroid autoimmunity (35% vs 16%); prevalence of subclinical hypothyroidism (11% vs 2%). Also, the prevalence of papillary thyroid cancer has been found higher in MC+HCV patients than in controls, in particular in patients with autoimmune thyroiditis. The involvement of T helper 1 immunity and chemokine (C-X-C motif) ligand 10 (CXCL10) may be the pathogenetic basis of the association between MC+HCV and thyroid autoimmunity. CONCLUSION These results show a high prevalence of thyroid disorders in patients with MC+HCV and point to the need for careful monitoring of thyroid function in these patients.
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Affiliation(s)
- Poupak Fallahi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | - Dilia Giuggioli
- Department of Medical, Surgical, Maternal, Pediatric and Adult Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Andreina Manfredi
- Department of Medical, Surgical, Maternal, Pediatric and Adult Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Caterina Mancusi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Silvia Fabiani
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Marco Centanni
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Latina, Italy
| | - Santino Marchi
- Department of Translational Research and of New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Clodoveo Ferri
- Department of Medical, Surgical, Maternal, Pediatric and Adult Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandro Antonelli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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Wu HL, Duan ZP, Zheng SJ. Hepatitis C virus infection and autoimmunity. Shijie Huaren Xiaohua Zazhi 2012; 20:2678-2684. [DOI: 10.11569/wcjd.v20.i28.2678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
According to the WHO estimates, the rate of hepatitis C virus (HCV) infection is approximately 3% in the world, and approximately 170 million people are infected with HCV. About 3.15 million new cases of HCV infection are diagnosed each year. Multiple autoantibodies can often be detected in patients with chronic HCV infection. Elucidation of the relationship between HCV infection and autoimmunity will open new perspectives for understanding the pathogenesis of HCV infection and the natural history of hepatitis C.
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Morphologic features of extrahepatic manifestations of hepatitis C virus infection. Clin Dev Immunol 2012; 2012:740138. [PMID: 22919404 PMCID: PMC3420144 DOI: 10.1155/2012/740138] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 06/28/2012] [Indexed: 12/18/2022]
Abstract
Cirrhosis and hepatocellular carcinoma are the prototypic complications of chronic hepatitis C virus infection in the liver. However, hepatitis C virus also affects a variety of other organs that may lead to significant morbidity and mortality. Extrahepatic manifestations of hepatitis C infection include a multitude of disease processes affecting the small vessels, skin, kidneys, salivary gland, eyes, thyroid, and immunologic system. The majority of these conditions are thought to be immune mediated. The most documented of these entities is mixed cryoglobulinemia. Morphologically, immune complex depositions can be identified in small vessels and glomerular capillary walls, leading to leukoclastic vasculitis in the skin and membranoproliferative glomerulonephritis in the kidney. Other HCV-associated entities include porphyria cutanea tarda, lichen planus, necrolytic acral erythema, membranous glomerulonephritis, diabetic nephropathy, B-cell non-Hodgkin lymphomas, insulin resistance, sialadenitis, sicca syndrome, and autoimmune thyroiditis. This paper highlights the histomorphologic features of these processes, which are typically characterized by chronic inflammation, immune complex deposition, and immunoproliferative disease in the affected organ.
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