نتایج جستجو برای: Hepatitis C virus core antigen

تعداد نتایج: 1772871  

Alexis Musacchio, Mohammad Azizi, Nelvis Figueroa, Ornaldo Pardo, Verena Muzio,

DNA coding for the core antigen from hepatitis B Virus (HBcAg) was amplified, cloned and propagated in E. coli. The core protein was expressed in E. coli and the product was readily detected by Western blot. This protein can be used as a diagnostic material in serum screening tests. To increase the level of expression of this antigen in bacteria, two plasmids were constructed in which the gene ...

Journal: :hepatitis monthly 0
maryam moini gastroenterohepatology research center, shiraz university of medical sciences, shiraz, ir iran mazyar ziyaeyan professor alborzi clinical microbiology research center, shiraz university of medical sciences, shiraz, ir iran shapoor aghaei department of internal medicine, yasouj university of medical sciences, yasouj, ir iran mohammad mahdi sagheb nephrourology research center, shiraz university of medical sciences, shiraz, ir iran; nephrourology research center, shiraz university of medical sciences, shiraz, ir iran. tel: +98-7116474316, fax: +98-7116474316 seyed alireza taghavi gastroenterohepatology research center, shiraz university of medical sciences, shiraz, ir iran mahsa moeini professor alborzi clinical microbiology research center, shiraz university of medical sciences, shiraz, ir iran

results among the 181 anti-hcv ab negative patients, 13 (7.2%) were positive for hcv core ag and 11 (6%) had detectable hcv rna with a range of 40-336543 iu/ml by pcr. the two tests had a high measurement agreement (kappa=0.82, p<0.001). of the 13 patients with positive hcv core ag test results, 3 were negative for hcv rna. considering real time pcr for hcv rna as the gold standard for hcv infe...

In this study a label-free electrochemical Immunosensor for ultrasensitive detection of Hepatitis C virus core antigen in serum samples was fabricated by using a simple approach. In this method a low-cost and sensitive immunosensor was fabricated based on a boehmite nanoparticles (BNPs) modified glassy carbon. The BNPs provide a specific platform with increased surface area which is capable of ...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2015
Bo Feng Rui-Feng Yang Hai-Ying Zhang Bi-Fen Luo Fan-Yun Kong Hui-Ying Rao Qian Jin Xu Cong Lai Wei

Response-guided therapy is of limited use in developing countries because hepatitis C virus RNA detection by sensitive molecular methods is time- and labor-consuming and expensive. We evaluated early predictive efficacy of serum hepatitis C virus core antigen kinetics on sustained virologic response in patients with genotype 1 hepatitis C virus during pegylated interferon plus ribavirin treatme...

Journal: :iranian biomedical journal 0
محمد عزیزی mohammad azizi alexis musacchio ornaldo pardo nelvis figueroa verena muzio

dna coding for the core antigen from hepatitis b virus (hbcag) was amplified, cloned and propagated in e. coli. the core protein was expressed in e. coli and the product was readily detected by western blot. this protein can be used as a diagnostic material in serum screening tests. to increase the level of expression of this antigen in bacteria, two plasmids were constructed in which the gene ...

Majid Bouzari, Sayedeh Azimeh Hosseini,

Background: SEN virus (SENV) is the latest virus proposed as a cause of unknown hepatitis cases. Among nine detected genotypes of the virus, genotypes D and H are more frequent in hepatitis cases of unknown origin. The aim of this study was to determine the frequency of SENV-D and SENV-H genotypes in the sera of healthy individuals and hepatitis B and C patients. Methods: Totally, 200 serum sam...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2013
Anita Chakravarti Mayank S Chauhan Gaurav Dogra Sayantan Banerjee

Hepatitis C virus infects over 15 million patients from India and 2.86 million from Brazil. Detection of anti-hepatitis C virus antibodies has limited sensitivity during acute phase: the pre-seroconversion window period. Hepatitis C virus-RNA detection techniques are used to overcome this shortfall, but are costly and unavailable widely in developing countries. Estimation of hepatitis C virus c...

Journal: :MEDICC review 2011
Bello Marité María Caridad Montalvo Licel de Los Ángeles Rodríguez Susel Sariego Denis Verdasquera Marguerite Vincent Aidonis Gutiérrez Meilin Sánchez

INTRODUCTION Co-infections between hepatitis B and HIV viruses are frequent due to their similar epidemiological characteristics. Worldwide, hepatitis B infection is one of the main causes of hepatocellular carcinoma and cirrhosis. In Cuba as elsewhere, prevalences of hepatitis B and hepatitis C viral infections are higher in persons with HIV. These hepatitis viruses act as opportunistic infect...

Journal: :Archives of disease in childhood 1995
M Pastore M Willems C Cornu J P Buts R Reding J de Ville de Goyet J Rahier J B Otte S H Yap E M Sokal

Paediatric orthotopic liver transplant recipients may develop chronic hepatitis after surgery. To investigate the role of hepatitis C virus in this pathology a cohort of 249 paediatric orthotopic liver transplant recipients was studied. Sixteen children (6.4%) were found to have chronic hepatitis C virus hepatitis after orthotopic liver transplantation. All but one of them had serum transaminas...

Background: Although regular frequent blood transfusion improves overall survival of multi-transfused patients like &beta;-thalassemic ones, it carries a definite risk of infection with blood-borne viruses such as viral hepatitis. This study was done to determine seropositivity of hepatitis B virus (HBV), hepatitis C virus (HCV), and Human Immunedeficiency Virus (HIV) infections among &beta;-th...

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