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1.
Sci Rep ; 11(1): 19275, 2021 09 29.
Artigo em Inglês | MEDLINE | ID: mdl-34588540

RESUMO

Reliable and available non-invasive methods for hepatic fibrosis assessment are important in chronic liver disease (CLD). Our aim was to compare stepwise algorithms combining standard ultrasound with serum markers and transient elastography (TE) for detecting advanced fibrosis (F3-4) and cirrhosis. Retrospective single center study between 2012 and 2018 of CLD patients with biopsy, TE, blood tests, and liver ultrasound parameters of surface nodularity (SN), lobar redistribution, and hepatic vein nodularity. Our cohort included 157 patients (51.6% males), mean age 47.6 years, predominantly non-alcoholic fatty liver disease and viral hepatitis (61%), with F3-4 prevalence of 60.5%. Area under the curve for F3-4 was 0.89 for TE ≥ 9.6 kPa and 0.80 for FIB-4 > 3.25. In multivariate modeling, TE ≥ 9.6 kPa (OR 21.78) and SN (OR 3.81) had independent association with F3-4; SN (OR 5.89) and TE ≥ 10.2 kPa (OR 15.73) were independently associated with cirrhosis. Two stepwise approaches included FIB-4 followed by SN or TE; sensitivity and specificity of stepwise SN were 0.65 and 1.00, and 0.89 and 0.33 for TE ≥ 9.6 kPa, respectively. Ultrasound SN and TE were independently predictive of F3-4 and cirrhosis in our cohort. FIB-4 followed by SN had high specificity for F3-4.


Assuntos
Técnicas de Imagem por Elasticidade , Hepatite Viral Humana/complicações , Cirrose Hepática/diagnóstico , Hepatopatia Gordurosa não Alcoólica/complicações , Índice de Gravidade de Doença , Adulto , Algoritmos , Biomarcadores/sangue , Biópsia , Feminino , Hepatite Viral Humana/sangue , Hepatite Viral Humana/patologia , Humanos , Fígado/diagnóstico por imagem , Fígado/patologia , Cirrose Hepática/sangue , Cirrose Hepática/etiologia , Cirrose Hepática/patologia , Masculino , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/sangue , Hepatopatia Gordurosa não Alcoólica/patologia , Curva ROC , Estudos Retrospectivos
2.
J Gastrointestin Liver Dis ; 29(3): 473-475, 2020 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-32919428
3.
J Immunoassay Immunochem ; 41(5): 913-923, 2020 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-32835616

RESUMO

Hepatitis B virus (HBV), Hepatitis C virus (HCV), and Hepatitis E Virus (HEV) are highly endemic in several African countries including Nigeria with adverse effects on pregnancy outcomes resulting in fatality. This study aimed to determine the viral hepatitis in pregnant women attending antenatal clinic, AMTHI. Informed consent questionnaire was administered before blood collection via venipuncture. a total of 904 pregnant women plasma samples were tested for HBV, HCV, and HEV using ELISA kit. Data was analyzed using packages within SPSS software and P ≤ 0.05 was considered significant. Out of 904 samples analyzed, the overall prevalence of hepatitis infections among pregnant women attending antenatal clinic in AMTHI was 66(7.3%). High prevalence of the hepatitis infections was found among young women within the age group 21-30 which might be associated with active sex, intravenous drug use, sharing of sharp objects and alcoholism. Blood group O Positive had the highest prevalence of hepatitis. There was statistical significance between blood group and HBsAg infection (P < .05). Genotype AA women had highest prevalence of hepatitis. This study showed significant association between HBsAg, HCV, and HEV positive status with blood group O positive and Genotype AA pregnant women.


Assuntos
Hepacivirus/isolamento & purificação , Antígenos de Superfície da Hepatite B/sangue , Vírus da Hepatite B/isolamento & purificação , Vírus da Hepatite E/isolamento & purificação , Hepatite Viral Humana/epidemiologia , Hepatite Viral Humana/virologia , Complicações na Gravidez/epidemiologia , Complicações na Gravidez/virologia , Sistema ABO de Grupos Sanguíneos/genética , Adolescente , Adulto , Criança , Ensaio de Imunoadsorção Enzimática , Feminino , Genótipo , Hepatite Viral Humana/sangue , Hepatite Viral Humana/genética , Hospitais de Ensino , Humanos , Imunoglobulina M/sangue , Nigéria/epidemiologia , Gravidez , Complicações na Gravidez/sangue , Complicações na Gravidez/genética , Prevalência , Adulto Jovem
4.
J Appl Lab Med ; 5(4): 716-723, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32603442

RESUMO

BACKGROUND: The capacity to integrate platforms across vendors and disciplines has become an essential feature in the design of total laboratory automation (TLA) due space and test menu constraints. However, data on its performance are lacking. We aim to evaluate an integrated third-party immunoassay platform to the TLA system for the performance of hepatitis testing using turnaround time (TAT). METHODS: We use the Beckman Power Express (PE) system with linked 2 Beckman AU5800, 2 Beckman DxI 800, 2 Abbott Architect i2000, and other accessory components. The PE system is managed and interfaced to the laboratory information system (LIS) through Beckman Remisol (middleware) and Cennexus (track software). The hepatitis tests are performed on the Abbott Architect i2000 using Abbott Instrument Manager (middleware) for test results and this is interfaced with LIS and Cennexus. Using Viewics and Microsoft Excel, the test volumes and TAT of hepatitis results were analyzed before (February 2017 to January 2018) and after (February 2018 to January 2019) integration. RESULTS: The TAT for each hepatitis test has decreased significantly, ranging from 13 to 81-minute reductions (P value <0.0001 for all tests) after instrument integration. The standard deviations of the TAT also decreased for each test. In addition, savings in labor expenditure of around 2 hours per day were observed. There were no laboratory space savings identified. Instead, 47.6 square foot more of space was utilized by the track connection lines. CONCLUSIONS: Our findings show significant improvement of TAT of hepatitis testing with the integration of the third-party Abbott Architect i2000 to Beckman PE system. In addition, the synchronization of multiple middleware for specimen management and result reporting allow the laboratory to achieve new efficiencies handling reflex tests and managing human resources.


Assuntos
Automação Laboratorial/instrumentação , Anticorpos Anti-Hepatite/sangue , Vírus de Hepatite/imunologia , Hepatite Viral Humana/diagnóstico , Testes Sorológicos/instrumentação , Anticorpos Anti-Hepatite/imunologia , Hepatite Viral Humana/sangue , Hepatite Viral Humana/imunologia , Hepatite Viral Humana/virologia , Humanos , Testes Sorológicos/métodos , Software
5.
Int J Mol Sci ; 21(14)2020 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-32664553

RESUMO

Liver fibrosis is one of the risk factors for hepatocellular carcinoma (HCC) development. The staging of liver fibrosis can be evaluated only via a liver biopsy, which is an invasive procedure. Noninvasive methods for the diagnosis of liver fibrosis can be divided into morphological tests such as elastography and serum biochemical tests. Transient elastography is reported to have excellent performance in the diagnosis of liver fibrosis and has been accepted as a useful tool for the prediction of HCC development and other clinical outcomes. Two-dimensional shear wave elastography is a new technique and provides a real-time stiffness image. Serum fibrosis markers have been studied based on the mechanism of fibrogenesis and fibrolysis. In the healthy liver, homeostasis of the extracellular matrix is maintained directly by enzymes called matrix metalloproteinases (MMPs) and their specific inhibitors, tissue inhibitors of metalloproteinases (TIMPs). MMPs and TIMPs could be useful serum biomarkers for liver fibrosis and promising candidates for the treatment of liver fibrosis. Further studies are required to establish liver fibrosis-specific markers based on further clinical and molecular research. In this review, we summarize noninvasive fibrosis tests and molecular mechanism of liver fibrosis in current daily clinical practice.


Assuntos
Biomarcadores/sangue , Técnicas de Imagem por Elasticidade/métodos , Cirrose Hepática/diagnóstico , Antígenos de Neoplasias/sangue , Sistemas Computacionais , Proteínas da Matriz Extracelular/metabolismo , Fibronectinas/sangue , Hepatite Viral Humana/sangue , Hepatite Viral Humana/complicações , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/etiologia , Imageamento por Ressonância Magnética/métodos , Metaloproteinases da Matriz/sangue , Metaloproteinases da Matriz/classificação , Metaloproteinases da Matriz/fisiologia , Glicoproteínas de Membrana/sangue , Especificidade por Substrato , Inibidores Teciduais de Metaloproteinases/sangue , Inibidores Teciduais de Metaloproteinases/fisiologia , Ultrassonografia/métodos
6.
Mil Med Res ; 7(1): 28, 2020 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-32507110

RESUMO

BACKGROUND: Recent studies reported that patients with coronavirus disease-2019 (COVID-19) might have liver injury. However, few data on the combined analysis and change patterns of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and total bilirubin (TBil) have been shown. METHODS: This is a single-center retrospective study. A total of 105 adult patients hospitalized for confirmed COVID-19 in Beijing Ditan Hospital between January 12, and March 17, 2020 were included, and divided into mild group (n = 79) and severe group(n = 26). We compared liver functional test results between the two groups. Category of ALT change during the disease course was also examined. RESULTS: 56.2% (59/105) of the patients had unnormal ALT, AST, or total TBil throughout the course of the disease, but in 91.4% (96/105) cases the level of ALT, AST or TBil ≤3 fold of the upper limit of normal reference range (ULN). The overall distribution of ALT, AST, and TBil were all significantly difference between mild and severe group (P <  0.05). The percentage of the patients with elevated both ALT and AST was 12.7% (10/79) in mild cases vs. 46.2% (12/26) in severe cases (P = 0.001). 34.6% (9/26) severe group patients started to have abnormal ALT after admission, and 73.3% (77/105) of all patients had normal ALT before discharge. CONCLUSIONS: Elevated liver function index is very common in patients with COVID-19 infection, and the level were less than 3 × ULN, but most are reversible. The abnormality of 2 or more indexes is low in the patients with COVID-19, but it is more likely to occur in the severe group.


Assuntos
Alanina Transaminase/sangue , Betacoronavirus , Infecções por Coronavirus/sangue , Hepatite Viral Humana/sangue , Hepatite Viral Humana/virologia , Fígado/virologia , Pneumonia Viral/sangue , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Aspartato Aminotransferases/sangue , Bilirrubina/sangue , Biomarcadores/sangue , COVID-19 , Infecções por Coronavirus/complicações , Infecções por Coronavirus/virologia , Feminino , Humanos , Fígado/fisiopatologia , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/complicações , Pneumonia Viral/virologia , Estudos Retrospectivos , SARS-CoV-2 , Índice de Gravidade de Doença , Adulto Jovem
7.
Ann Parasitol ; 66(2): 135-141, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32530590

RESUMO

There is an increasing concern about the co-infection of visceral leishmaniosis (VL) with human immunodeficiency virus (HIV) and/or viral hepatitis B/C. The aim of this study was to determine the prevalence of HIV and viral hepatitis co-infections among VL patients in a hyperendemic area in Eastern Sudan and to assess antibody levels in co-infected patients. This is a retrospective study where the sera of confirmed VL cases and non-VL individuals were analysed. The sera were screened for co-infections using immunochromatographic tests and ELISA for anti-HIV 1+2 antibodies, hepatitis B surface antigen (HBsAg), and anti-hepatitis C virus (HCV). Anti-Leishmania donovani antibodies in the sera of VL alone were assessed and compared to the sera of co-infected patients. Of the 100 screened VL sera, 6 (6%), 0 (0%), and 1 (1%) were positive for HBsAg, anti-HCV, and anti-HIV, respectively. These values were 5 (5%), 0 (0%), and 1 (1%) in the control group. Of note, the HCV screening test (Biorex, UK) showed positive reactivity in 32 (32%) and 17 (17%) sera of VL and control groups, respectively. All reactive sera tested negative in HCV ELISA. Of the 93 VL sera, 75 (80.6%) had strong DAT titers (1:˃102400), 2 (2.1%) demonstrated the lowest DAT titers (1:≤800), and 5 (5.4%) had marginal DAT titers (1:1600). Interestingly, the VL/HIV co-infected serum had a negative antibody titer (1:1600). Of the 6 VL/HBV co-infected sera, 1 (16.7%) and 5 (83.3%) demonstrated moderate (1:12800­1:51600) and strong (1:≥102400) DAT titers, respectively. The strong DAT titers observed in the VL/HBV co-infected sera were comparable to the DAT titers of the VL sera. The VL co-infection with HIV and hepatitis B/C is low in endemic areas in Eastern Sudan but may create a diagnostic difficulty. VL/HIV co-infected patients can have low Leishmania antibodies, thus alternative methodologies (e.g., antigen tests) may help the diagnosis.


Assuntos
Infecções por HIV , Hepatite Viral Humana , Leishmaniose Visceral , Anticorpos/sangue , Infecções por HIV/sangue , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Hepatite Viral Humana/sangue , Hepatite Viral Humana/complicações , Hepatite Viral Humana/epidemiologia , Humanos , Leishmaniose Visceral/complicações , Leishmaniose Visceral/epidemiologia , Prevalência , Estudos Retrospectivos , Estudos Soroepidemiológicos , Sudão/epidemiologia
8.
World J Gastroenterol ; 26(15): 1691-1707, 2020 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-32351287

RESUMO

The review presents the data accumulated for more than 20 years of research of torque teno virus (TTV). Its molecular genetic structure, immunobiology, epidemiology, diagnostic methods, possible replication sites, and pathogenicity factors are described. TTV is a virus that is frequently detectable in patients with different viral hepatitides, in cases of hepatitis without an obvious viral agent, as well as in a healthy population. There is evidence suggesting that biochemical and histological changes occur in liver tissue and bile duct epithelium in TTV monoinfection. There are sufficient histological signs of liver damage, which confirm that the virus can undergo a replicative cycle in hepatocytes. Along with this, cytological hybridization in TTV-infected cells has shown no substantial cytopathic (cell-damaging) effects that are characteristic of pathogenic hepatotropic viruses. Studying TTV has led to the evolution of views on its role in the development of human pathology. The first ideas about the hepatotropism of the virus were gradually reformed as new data became available on the prevalence of the virus and its co-infection with other viruses, including the viruses of the known types of hepatitides. The high prevalence of TTV in the human population indicates its persistence in the body as a virome and a non-pathogenic virus. It has recently been proposed that the level of TTV DNA in the blood of patients undergoing organ transplantation should be used as an endogenous marker of the body's immune status. The available data show the polytropism of the virus and deny the fact that TTV can be assigned exclusively to hepatitis viruses. Fortunately, the rare detection of the damaging effect of TTV on hepatic and bile duct epithelial cells may be indirect evidence of its conditionally pathogenic properties. The ubiquity of the virus and the variability of its existence in humans cannot put an end to its study.


Assuntos
Infecções por Vírus de DNA/virologia , Hepatite Viral Humana/virologia , Fígado/virologia , Torque teno virus/patogenicidade , Viroma/imunologia , Ductos Biliares/patologia , Ductos Biliares/virologia , Infecções por Vírus de DNA/sangue , Infecções por Vírus de DNA/patologia , DNA Viral/isolamento & purificação , Epitélio/virologia , Hepatite Viral Humana/sangue , Hepatite Viral Humana/patologia , Hepatócitos/virologia , Humanos , Fígado/patologia , Prevalência , Torque teno virus/genética , Torque teno virus/imunologia , Carga Viral/imunologia
9.
Int J Mol Sci ; 21(10)2020 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-32466319

RESUMO

During the progression from hepatitis to fibrosis, cirrhosis, and liver failure, the accumulation of stressed/damaged hepatocyte elements associated with liver inflammation is critical. The causes of hepatocyte injuries include viral hepatitis infections, alcoholic hepatitis, and non-alcoholic fatty liver disease. Hepatocyte-derived extracellular vesicles (Hep-EVs) released from stressed/damaged hepatocytes are partly responsible for liver disease progression and liver damage because they activate non-parenchymal cells and infiltrate inflammatory cells within the liver, which are in turn are an important source of EVs. This cell-to-cell signaling is prevalent during inflammation in many liver diseases. Accordingly, special emphasis should be placed on liquid biopsy methods for the long-term monitoring of chronic liver diseases. In the present review, we have highlighted various aspects of current liquid biopsy research into chronic liver diseases. We have also reviewed recent progress on liquid biopsies that focus on cell-free DNA (cfDNA), long non-coding RNA (lncRNA), and the proteins in EVs as potential diagnostic tools and novel therapeutic targets in patients with viral hepatitis, fatty liver steatosis, and alcoholic liver diseases.


Assuntos
Vesículas Extracelulares/metabolismo , Fígado Gorduroso Alcoólico/sangue , Hepatite Viral Humana/sangue , Hepatopatia Gordurosa não Alcoólica/sangue , Biomarcadores/sangue , Fígado Gorduroso Alcoólico/patologia , Hepatite Viral Humana/patologia , Hepatócitos/metabolismo , Humanos , Hepatopatia Gordurosa não Alcoólica/patologia
10.
Medicina (Kaunas) ; 56(2)2020 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-32050594

RESUMO

Background and Objectives: Cirrhotic cardiomyopathy is a chronic cardiac dysfunction associated with liver cirrhosis, in patients without previous heart disease, irrespective of the etiology of cirrhosis. Electrocardiography (ECG) is an important way to evaluate patients with cirrhosis and may reveal significant changes associated with liver disease. Our study aimed to evaluate ECG changes in patients with diagnosed liver cirrhosis and compare them to patients with chronic hepatitis. Materials and Methods: We evaluated laboratory findings and ECG tracings in 63 patients with cirrhosis and 54 patients with chronic hepatitis of viral etiology. The end points of the study were prolonged QT interval, QRS hypovoltage and T-peak-to-T-end decrease. We confirmed the diagnosis of cirrhotic cardiomyopathy using echocardiography data. Results: Advanced liver disease was associated with prolonged QT intervals. Also, QRS amplitude was lower in patients with decompensated cirrhosis than in patients with compensated liver disease. We found an accentuated deceleration of the T wave in patients with cirrhosis. These findings correlated to serum levels of albumin, cholesterol and ammonia. Conclusions: ECG changes in liver cirrhosis are frequently encountered and are important noninvasive markers for the presence of cirrhotic cardiomyopathy.


Assuntos
Cardiomiopatias/fisiopatologia , Eletrocardiografia , Hepatite Viral Humana/fisiopatologia , Cirrose Hepática/fisiopatologia , Amônia/sangue , Cardiomiopatias/sangue , Cardiomiopatias/diagnóstico , Colesterol/sangue , Doença Crônica , Feminino , Hepatite Viral Humana/sangue , Humanos , Cirrose Hepática/sangue , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Albumina Sérica/análise
11.
Dig Dis Sci ; 65(12): 3614-3623, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-31974915

RESUMO

BACKGROUND: Interleukin (IL)-35 is a newly indentified cytokine and induces immunotolerance via suppression of CD8+ T cell activity in chronic viral hepatitis. AIMS: To investigate the modulatory function of IL-35 to CD8+ T cells in viral hepatitis-induced acute-on-chronic liver failure (ACLF). METHODS: Fifty-five ACLF patients and 21 healthy controls were enrolled. Serum IL-35 concentration was measured by ELISA. Absolute accounts for T cells, immune checkpoint molecules, and cytotoxic molecules in CD8+ T cells were measured by flow cytometry and real-time PCR, respectively. Direct and indirect contact co-culture systems between CD8+ T cells and HepG2 cells were set up. The regulatory function of IL-35 to CD8+ T cells was assessed by measuring lactate dehydrogenase expression and cytokine production. RESULTS: Serum IL-35 concentration was elevated in ACLF patients and positively correlated with total bilirubin, but negatively correlated with prothrombin time activity. Peripheral CD8+ T cells showed exhausted phenotype in ACLF patients, which manifested as up-regulation of programmed death-1 (PD-1), cytotoxic T-lymphocyte-associated protein-4 (CTLA-4), and lymphocyte activation gene-3 (LAG-3) but down-regulation of perforin, granzyme B, and FasL. Recombinant IL-35 stimulation dampened cytotoxicity and interferon-γ production in both direct and indirect contact co-culture systems. This process was accompanied by elevation of PD-1, CTLA-4, and LAG3, as well as reduction of perforin, granzyme B, and FasL in CD8+ T cells. CONCLUSION: Elevated IL-35 suppressed both cytolytic and non-cytolytic activity of CD8+ T cells in ACLF patients.


Assuntos
Insuficiência Hepática Crônica Agudizada , Linfócitos T CD8-Positivos/imunologia , Hepatite Viral Humana , Tolerância Imunológica , Interleucinas , Ativação Linfocitária/imunologia , Insuficiência Hepática Crônica Agudizada/sangue , Insuficiência Hepática Crônica Agudizada/imunologia , Bilirrubina/sangue , Técnicas de Cocultura/métodos , Testes Imunológicos de Citotoxicidade/métodos , Feminino , Células Hep G2 , Hepatite Viral Humana/sangue , Hepatite Viral Humana/imunologia , Humanos , Interleucinas/sangue , Interleucinas/imunologia , Masculino , Pessoa de Meia-Idade , Tempo de Protrombina/métodos , Proteínas Recombinantes/sangue , Proteínas Recombinantes/imunologia
12.
Transfusion ; 59(10): 3177-3185, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31393615

RESUMO

BACKGROUND: A serum alanine aminotransferase (ALT) test is currently demanded for blood donation in China. One of the major reasons to include such a test is possible etiology of known or unknown hepatotropic viruses. However, this hypothesis has never been examined convincingly. STUDY DESIGN AND METHODS: The study recruited 90 Chinese blood donors that were divided into three groups based on their ALT values. Serum virome from these donors was explored using a metagenomics approach with enhanced sensitivity resolved at single sequencing reads. RESULTS: Anellovirus and pegivirus C (GBV-C) were detected among these donors. None of them were found solely in donors with abnormal liver enzyme. Anellovirus was highly prevalent (93.3%) and the co-infection with multiple genera (alpha, beta, and gammatorquevirus) were more common in the donors with normal ALT values in comparison to those with elevated ALT (single/double/triple Anellovirus genera, 1/3/24 vs. 7/7/14 or 6/7/13, p = 0.009). For unmapped reads that accounted for 15 ± 14.9% of the data, similarity-based (BLASTN, BLASTP, and HMMER3) and similarity-independent (k-mer frequency) analysis identified several circular rep encoding ssDNA (CRESS-DNA) genomes. Direct PCR testing indicated these genomes were likely reagent contaminants. CONCLUSION: Viral etiology is not responsible for elevated ALT levels in Chinese blood donors. The ALT test, if not abandoned, should be adjusted for its cutoff in response to donor shortage in China.


Assuntos
Alanina Transaminase/sangue , Anelloviridae , Doadores de Sangue , Genoma Viral , Vírus de Hepatite , Hepatite Viral Humana , Adulto , Anelloviridae/genética , Anelloviridae/metabolismo , Povo Asiático , China/epidemiologia , Feminino , Vírus de Hepatite/genética , Vírus de Hepatite/metabolismo , Hepatite Viral Humana/sangue , Hepatite Viral Humana/epidemiologia , Hepatite Viral Humana/genética , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência
13.
Mymensingh Med J ; 28(2): 278-285, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31086138

RESUMO

Infections due to hepatitis A (HAV), hepatitis B (HBV), hepatitis C (HCV) and hepatitis E (HEV) viruses are the major causes of hepatitis and are associated with significant morbidity and mortality in developing countries like Bangladesh. The aim of this study was to assess the distribution pattern of serological markers in patients of acute viral hepatitis. This was a hospital based observational cross sectional study among purposively selected 107 patients admitted with acute viral hepatitis in the Department of Medicine, Mymensingh Medical College Hospital, Mymensingh, Bangladesh from April 2017 to September 2017. Data were collected by face-to-face interview of the patients, clinical assessment and investigations of biochemical and serological parameters using a structured questionnaire. Descriptive analysis was done using the analytic software SPSS version 21.0. The mean age of the patients was 33.35±12.97 years. Majority was male (68.2%), Muslim (87.9%), married (72.9%) and came from urban area (63.6%) with different level of educational qualifications. The prevalence of viral hepatitis is higher in male (68.22%) than female (31.78%). The common clinical presentations were dark coloured urine (100.0%), yellow colouration of the sclera (100.0%), anorexia (90.6%), nausea/vomiting (79.4%) and abdominal pain (68.2%). Of the 107 patients, 51.40% (n=55) had acute viral E hepatitis, 36.40% (n=39) had acute viral B hepatitis, 12.15% (n=13) had acute viral A hepatitis. Mixed infection with both hepatitis E and A viruses was 1.87% (n=2). HEV and HBV are common in relatively older age while HAV is common in relatively younger age to cause acute viral hepatitis. The study revealed a high prevalence of HEV followed by HBV and HAV in the Bangladeshi population suspected of having suffered from acute viral hepatitis.


Assuntos
Hepacivirus , Vírus da Hepatite A , Vírus da Hepatite B , Vírus da Hepatite E , Hepatite Viral Humana/epidemiologia , Adulto , Bangladesh/epidemiologia , Estudos Transversais , Feminino , Hepatite Viral Humana/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
14.
Eur J Gastroenterol Hepatol ; 31(3): 389-392, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30383555

RESUMO

INTRODUCTION: Hepatitis G virus (HGV) infection appears to be common in patients with chronic hepatitis C virus (HCV) infection. The aim of this study was to investigate the prevalence of HCV/HGV in patients with chronic hepatitis C (CHC) in Pakistan and to look for possible associations with various clinical and histopathological changes in HCV/HGV coinfection and HCV infection. PATIENTS AND METHODS: The present study included 136 patients. Clinical, biochemical, virological and histological findings were compared between patients coinfected with HCV/HGV and patients with HCV alone. RESULTS: Of the 136 patients with CHC, 16 (11.76%) were coinfected with HCV/HGV. The mean age of coinfected patients was lower than in patients with HCV alone. HCV/HGV coinfected patients did not show significant differences in sex, clinical presentation, biochemical markers, and liver fibrosis as compared to those with HCV infection. Only the mean values of platelets count, mean corpuscular hemoglobin (MCH), and MCH concentration markers were significantly different in HCV/HGV coinfected patients as compare to patients with HCV alone. CONCLUSION: It was found that 11.76% of patients with CHC in Pakistan were associated with HCV/HGV coinfection. No significant differences were observed in clinical and histological features except for platelets count, MCH, and MCH concentration markers between HCV and HGV coinfected patients in comparison with HCV-infected patients.


Assuntos
Coinfecção/epidemiologia , Infecções por Flaviviridae/epidemiologia , Vírus GB C/patogenicidade , Hepatite C Crônica/epidemiologia , Hepatite Viral Humana/epidemiologia , Adulto , Coinfecção/sangue , Coinfecção/diagnóstico , Coinfecção/virologia , Índices de Eritrócitos , Feminino , Infecções por Flaviviridae/sangue , Infecções por Flaviviridae/diagnóstico , Infecções por Flaviviridae/virologia , Hepatite C Crônica/sangue , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/virologia , Hepatite Viral Humana/sangue , Hepatite Viral Humana/diagnóstico , Hepatite Viral Humana/virologia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Paquistão/epidemiologia , Contagem de Plaquetas , Prevalência , Carga Viral
15.
mSphere ; 3(5)2018 10 10.
Artigo em Inglês | MEDLINE | ID: mdl-30305319

RESUMO

Cytochrome p4502E1 (CYP2E1) autoantibodies are biomarkers for drug-induced hepatitis and chronic hepatitis C. However, major histocompatibility-restricted CYP2E1 epitopes associated with these diseases have not been identified. We hypothesized that CYP2E1 epitopes associated with different types of hepatitis may be shared and may impact immune responses and metabolism. SYFPEITHI epitope prediction identified CYP2E1 candidate epitopes that would be recognized by MHC II haplotypes. Candidate epitopes were tested for induction of hepatitis and CYP2E1 autoantibodies in mice and recognition by sera from patients with anesthetic drug-induced and viral hepatitis. Human liver cells treated with epitope hybridoma serum were analyzed for mitochondrial stress. CYP2E1 activity was measured in human microsomes similarly treated. Epitope antibodies in viral hepatitis sera were analyzed using linear regression to uncover associations with liver pathology. A P value of <0.05 was considered significant. One epitope (Gly113-Leu135) induced hepatitis and CYP2E1 autoantibodies in mice after modification of Lys123 (P < 0.05). Gly113-Leu135 antiserum recognized mitochondria and endoplasmic reticula (P < 0.05), upregulated HSP27 (P < 0.01) and mitochondrial oxidative stress via complex 1 inhibition (P < 0.001), and inhibited CYP2E1 activity. Gly113-Leu135 IgG4 detected in viral hepatitis sera was associated with severe hepatic fibrosis (P = 0.0142). We found a novel CYP2E1 epitope that was detected in anesthetic and viral hepatitis and that triggered hepatitis in mice. Our findings may improve understanding of hepatic immune responses triggered by metabolism or viruses.IMPORTANCE Drug-induced hepatitis is the leading reason that an approved drug is removed from the commercial market. Halogenated anesthetics can induce hepatitis in susceptible persons, and cytochrome p4502E1 (CYP2E1) enzymes responsible for their metabolism induce antibodies in addition to hepatitis. CYP2E1 antibodies detected in anesthetic hepatitis patients have been detected in patients with viral hepatitis, suggesting that these different forms of hepatitis could develop immune reactions to a common segment or epitope of CYP2E1. We have found a common MHC-restricted CYP2E1 epitope in anesthetic and viral hepatitis that is a dominant epitope in anesthetic hepatitis and is significantly associated with fibrosis in patients with viral hepatitis. Along with conformational epitopes, our identification of MHC-restricted CYP2E1 epitopes can be used to develop specific diagnostic tests for drug-induced or viral hepatitis or associated fibrosis or to predict individuals at risk for developing these diseases or their sequelae.


Assuntos
Autoanticorpos/sangue , Doença Hepática Induzida por Substâncias e Drogas/sangue , Citocromo P-450 CYP2E1/imunologia , Epitopos/imunologia , Hepatite Viral Humana/sangue , Adulto , Sequência de Aminoácidos , Anestésicos/efeitos adversos , Animais , Biomarcadores/sangue , Feminino , Hepatite Viral Humana/imunologia , Humanos , Imunoglobulina G/sangue , Modelos Lineares , Fígado/patologia , Cirrose Hepática/etiologia , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Pessoa de Meia-Idade , Estresse Oxidativo
16.
Gut Liver ; 12(4): 449-456, 2018 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-29699061

RESUMO

Background/Aims: Fibroblast growth factor (FGF) 21 is associated with hepatic inflammation and fibrosis. However, little is known regarding the effects of inflammation and fibrosis on the ß-Klotho and FGF21 pathway in the liver. Methods: Enrolled patients had biopsy-confirmed viral or alcoholic hepatitis. FGF19, FGF21 and ß-Klotho levels were evaluated using enzyme-linked immunosorbent assay, real-time polymerase chain reaction, and Western blotting. Furthermore, we explored the underlying mechanisms for this process by evaluating nuclear factor-κB (NF-κB) and c-Jun N-terminal kinase (JNK) pathway involvement in Huh-7 cells. Results: We observed that the FGF19 and FGF21 serum and mRNA levels in the biopsied liver tissue gradually increased and were correlated with fibrosis stage. Inflammatory markers (interleukin 1ß [IL-1ß], IL-6, and tumor necrosis factor-α) were positively correlated, while ß-Klotho expression was negatively correlated with the degree of fibrosis. In Huh-7 cells, IL-1ß increased FGF21 levels and decreased ß-Klotho levels. NF-κB and JNK inhibitors abolished the effect of IL-1ß on both FGF21 and ß-Klotho expression. FGF21 protected IL-1ß-induced growth retardation in Huh-7 cells. Conclusions: These results indicate that the inflammatory response during fibrogenesis increases FGF21 levels and suppresses ß-Klotho via the NF-κB and JNK pathway. In addition, FGF21 likely protects hepatocytes from hepatic inflammation and fibrosis.


Assuntos
Fatores de Crescimento de Fibroblastos/sangue , Hepatite Alcoólica/sangue , Hepatite Viral Humana/sangue , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , Proteínas de Membrana/sangue , NF-kappa B/metabolismo , Transdução de Sinais/fisiologia , Adolescente , Adulto , Idoso , Feminino , Hepatite Alcoólica/complicações , Hepatite Alcoólica/patologia , Hepatite Viral Humana/complicações , Hepatite Viral Humana/patologia , Hepatócitos/metabolismo , Humanos , Proteínas Klotho , Fígado/citologia , Fígado/metabolismo , Fígado/patologia , Cirrose Hepática/etiologia , Masculino , Pessoa de Meia-Idade , Adulto Jovem
17.
J Thromb Haemost ; 16(4): 630-633, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29383815

RESUMO

The purpose of this essay is to recall the actions taken globally to improve the viral safety of coagulation factor concentrates, mainly in the years 1985-1990, at a time of confusing and often contradictory information on bloodborne viral infections in multitransfused patients with hemophilia (PWHs). I shall first recall the problem of the transmission and control of the hepatitis viruses, and then that of HIV: not only for temporal reasons, but also because understanding the progress of knowledge on hepatitis and the poor success of the early measures taken to tackle this problem in PWHs is essential to understand how the problem of HIV transmission was ultimately dealt with successfully.


Assuntos
Fatores de Coagulação Sanguínea/história , Coagulantes/história , Contaminação de Medicamentos , Infecções por HIV/história , Hemofilia A/história , Hepatite Viral Humana/história , Segurança do Paciente/história , Fatores de Coagulação Sanguínea/efeitos adversos , Coagulantes/efeitos adversos , Contaminação de Medicamentos/prevenção & controle , Infecções por HIV/sangue , Infecções por HIV/transmissão , Hemofilia A/sangue , Hemofilia A/tratamento farmacológico , Hepatite Viral Humana/sangue , Hepatite Viral Humana/transmissão , História do Século XX , Humanos , Proteínas Recombinantes/história , Medição de Risco , Fatores de Risco
18.
PLoS One ; 12(10): e0185911, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28982120

RESUMO

Hepatitis is a general term meaning inflammation of the liver, which can be caused by a variety of viruses. However, a substantial number of cases remain with unknown aetiology. We analysed the serum of patients with clinical signs of hepatitis using a metagenomics approach to characterize their viral species composition. Four pools of patients with hepatitis without identified aetiological agents were evaluated. Additionally, one pool of patients with hepatitis E (HEV) and pools of healthy volunteers were included as controls. A high diversity of anelloviruses, including novel sequences, was found in pools from patients with hepatitis of unknown aetiology. Moreover, viruses recently associated with gastroenteritis as sapovirus GV.2 and astrovirus VA3 were also detected only in those pools. Besides, most of the HEV genome was recovered from the HEV pool. Finally, GB virus C and human endogenous retrovirus were found in the HEV and healthy pools. Our study provides an overview of the virome in serum from hepatitis patients suggesting a potential role of these viruses not previously described in cases of hepatitis. However, further epidemiologic studies are necessary to confirm their contribution to the development of hepatitis.


Assuntos
Anelloviridae/isolamento & purificação , Hepatite Viral Humana/virologia , Mamastrovirus/isolamento & purificação , Sapovirus/isolamento & purificação , Viremia/sangue , Doença Aguda , Anelloviridae/classificação , Estudos de Casos e Controles , Hepatite Viral Humana/sangue , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Mamastrovirus/classificação , Filogenia , Viremia/classificação
19.
Eur J Gastroenterol Hepatol ; 29(11): 1215-1218, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28857896

RESUMO

BACKGROUND AND AIM: Viral hepatitis is a global health issue and can lead to cirrhosis, liver failure, and hepatocellular carcinoma. Guidelines for viral hepatitis screening in the transgender population do not exist. Transgender patients may be at higher risk for contracting viral hepatitis due to socioeconomic and behavioral factors. The aim of this study was to measure the quality of screening, prevalence, and susceptibility of viral hepatitis, and to identify barriers to screening in transgender patients undergoing gender identity hormonal therapy. METHODS: LGBTQ-friendly clinic visits from transgender patients older than 18 years in New York City from 2012 to 2015 were reviewed. RESULTS: Approximately 13% of patients were screened for any viral hepatitis on initial consultation. Screening rates for hepatitis C virus (HCV), hepatitis B virus (HBV), and hepatitis A virus (HAV) at any point were 27, 22, and 20%. HAV screening was performed in 28% of the female to male (FtM) patients and 16% of male to female (MtF) (P<0.05) patients. HBV screening was performed in 30% of FtM patients and 18% of MtF patients (P<0.05). Thirty-one percent of FtM, 24% of MtF, and 17% of genderqueer patients were tested for HCV (P>0.05). Prevalence of HCV, HBV, and HIV in FtM was 0, 0, and 0.44% and that in MtF was 1.78, 0.89, and 1.78%, respectively. Percentage of patients immune to hepatitis A in FtM and MtF subgroups were 55 and 47% (P>0.05). Percentage of patients immune to HBV in FtM and MtF subgroups were 54 and 48% (P>0.05). CONCLUSION: This study indicates a significant lack of hepatitis screening in the transgender population and a concerning proportion of patients susceptible to disease.


Assuntos
Hepatite Viral Humana/diagnóstico , Hepatite Viral Humana/epidemiologia , Programas de Rastreamento/estatística & dados numéricos , Qualidade da Assistência à Saúde , Pessoas Transgênero/estatística & dados numéricos , Adulto , Idoso , Feminino , Hepatite A/sangue , Hepatite A/diagnóstico , Hepatite A/epidemiologia , Anticorpos Anti-Hepatite A/sangue , Vírus da Hepatite A Humana/imunologia , Hepatite B/diagnóstico , Hepatite B/epidemiologia , Anticorpos Anti-Hepatite B/sangue , Vírus da Hepatite B/imunologia , Hepatite C/diagnóstico , Hepatite C/epidemiologia , Hepatite Viral Humana/sangue , Hormônios/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Cidade de Nova Iorque/epidemiologia , Prevalência , Procedimentos de Readequação Sexual , Adulto Jovem
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