نتایج جستجو برای: hepatitis b virus mutation

تعداد نتایج: 1498097  

Behrang Ashourizadeh, Hanieh Bashizadeh-Fakhar Reza Goleijani-Moghaddam Seyede-Sarah Fallahchai

Today, chronic viral hepatitis is considered as a public health problem in the world. Totally, 5% of the world population, especially in Asia and Africa suffer from this problem. The prevalence of acute hepatitis in America is 0.1-0.2 percent, 50% of those with hepatitis C (HCV) and 5-10% of them with hepatitis B (HCV) develop chronic hepatitis. Determining HBV and HCV genotypes is important to...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2005
Hossein Sendi Tahereh Ghaziani Mohammad R Zali Peyman Adibi Mohammadreza Agah Maryam Jazayeri Saeed Shahraz Lars Magnius Herbert L Bonkovsky

In this study, the frequencies of the common hemochromatosis gene mutations were assessed in 75 Iranian subjects with chronic hepatitis B infection. We found that the major C282Y mutation was significantly more frequent in subjects infected with hepatitis B virus (4%) than in 194 control subjects (0%, P=.02; Fisher's exact test).

Journal: :hepatitis monthly 0
rosa cristina coppola department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it; department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it rosa cristina coppola department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, [email protected]; department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, [email protected] angelo meloni department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it marcello campagna department of public health, clinical and molecular medicine, university of cagliari, italy +39-706753104, coppola@medicina. unica.it

Journal: :archives of clinical infectious diseases 0
afshin hooshyar department of gastroenterology, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran shahram habibzadeh department of infectious disease, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran; department of infectious disease, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran. tel: +98-9144519670, fax: +98-4515510057 nasrin ghasemi department of internal medicine, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran abbas yazdanbod department of gastroenterology, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran sirus sohrabi department of emergency medicine, shahid beheshti university of medical sciences, tehran, ir iran nasrollah maleki department of internal medicine, imam khomeini hospital, ardabil university of medical sciences, ardabil, ir iran

background: more than 350 million people are chronic carriers of hepatitis b virus (hbv) and because of the high hbv-related morbidity and mortality, the global disease burden of hbv is substantial. in patients with hbeag–negative chronic hepatitis b (chb) with serum alanine aminotransferase (alt) levels, 1-2 × upper limit of normal (uln) and hbv dna load of 10000 to 100000 copies/ml, liver bio...

Journal: :nephro-urology monthly 0
amitis ramezani department of clinical research, pasteur institute of iran, tehran, ir iran mohammad reza aghasadeghi department of hepatitis and aids, pasteur institute of iran, tehran, ir iran farrokhlagha ahmadi nephrology research center, tehran university of medical sciences, tehran, ir iran effat razeghi nephrology research center, tehran university of medical sciences, tehran, ir iran ali eslamifar department of clinical research, pasteur institute of iran, tehran, ir iran mohammad banifazl iranian society for support patients with infectious diseases, tehran, ir iran

conclusions this study showed a low rate of isolated anti-hbc and occult hbv infection in hd patients. it can be due to improvement of people’s knowledge about hbv transmission routes, hbv vaccination of hd patients and regular surveillance of hbv infection. results a hundredpatients with a mean age of 58.5 ± 16.1 years were enrolled in this study. in total, 56.7% were male and 43.3% female. an...

Journal: :hepatitis monthly 0
farah bokharaei salim department of virology, iran university of medical sciences, tehran, ir iran; department of virology, iran university of medical sciences, tehran, ir iran. tel/fax: +98-2188602205 hossein keyvani department of virology, iran university of medical sciences, tehran, ir iran seyed hamidreza monavari department of virology, iran university of medical sciences, tehran, ir iran maryam esghaei department of virology, iran university of medical sciences, tehran, ir iran shahin fakhim department of civil engineering, faculty of engineering, payame noor university, karaj, ir iran angila ataei pirkooh department of virology, iran university of medical sciences, tehran, ir iran

conclusions the main and frequent hbv genotype among azerbaijani patients with chronic hepatitis b virus infection was genotype d followed by genotype a. results the mean age of patients was 35.9 ± 11.7 years (19-66). of 103 patients, 72 (69.9%) were male. in the present study, the predominant hbv genotype was d (93.2%) followed by genotype a (5.8%) and concurrent infection with a and d genotyp...

Journal: :hepatitis monthly 0
jeyanthi suppiah virology unit, institute for medical research, kuala lumpur, malaysia; virology unit, institute for medical research, kuala lumpur, malaysia. tel: +603-26162674 rozainanee mohd zain virology unit, institute for medical research, kuala lumpur, malaysia norazlah bahari pathology unit, selayang hospital, selangor, malaysia salbiah haji nawi microbiology unit, hospital kuala lumpur, kuala lumpur, malaysia zainah saat virology unit, institute for medical research, kuala lumpur, malaysia

conclusions association with sex, genotype and clinical symptoms revealed that the pre-s1 orf deletion occurred in 40% , 40%,and 20% of genotypes b,c, and d respectively, and 80% of the female population, of which all but one were diagnosed with chronic hepatitis b. additionally, several mutations were found in the bcp region with the following incidence rate; c1653 t (8.6%), a1752 g (10.8%),17...

Abdolvahab Moradi Alijan Tabarraei, Amir Ghaemi, Masoud Bazouri Naeme Javid, Sareh Zhand

Objective(s): It has been reported that the mutation of the pre-core (PC) and basal-core promoter (BCP) may play an important role in the development of HBV-related hepatocellular carcinoma (HCC). In this study the PC and BCP mutations were investigated in chronic HBV patients. Materials and Methods:In this study, 120 chronic HBV patients from Golestan, Northeast of Iran who were not vaccinated...

Alireza Nemati, Hadi Ghofrani, Hossein Foroutan, Hossein Keivani, Mohsen Nasiri-Tosi,

    Abstract   Background: Hepatitis B virus infection is an important cause of liver morbidity and   mortality worldwide. HDV changes the natural course of HBV. The prevalence of HDV infection wasn’t determined in the various groups of HBV infection (carriers, acute hepatitis, chronic hepatitis, cirrhosis and HCC) in Iran. We aimed to research the prevalence of hepatitis D virus infection in v...

A Hoseini Razavi A Sanati A SHarifiyan M KHan Yaghma M.R Zali P Azimzadeh S,M Hoseini S.R Mohebi

Background & Aims: Hepatitis B infection is a global health problem. Hepatitis B virus can escape from the innate immune system, however adaptive immune system mainly acts against it. Transforming growth factor (TGF-) has three isoforms in mammals. Several studies have recently shown that TGF-1 suppresses replication of hepatitis B virus. Moreover, high expression of this factor is effective in...

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