نتایج جستجو برای: hdv
تعداد نتایج: 845 فیلتر نتایج به سال:
Background and Aims: HDV is a defective satellite virus and classified in genus Deltavirus. Its disease is related and limited to HBV-infected patients. Acute infection of delta agent occurs in two different patterns simultaneous infection with both HBV & HDV or super infection of chronically HBV infected patients that lead to more sever type of hepatitis. According to genetic diversity of geno...
Hepatitis D virus (HDV) infection plays an important role in liver diseases. However, the molecular epidemiology and impact of HDV infection in chronic hepatitis B (CHB) remain uncertain in Vietnam. This cross-sectional study aimed to investigate the prevalence and genotype distribution of HDV among HBsAg-positive patients in Central Vietnam. 250 CHB patients were tested for HDV using newly est...
Hepatitis delta virus (HDV) contains two RNA species (HDV-S and HDV-L), which encode the small and large forms of hepatitis delta antigens (S- and L-HDAg), respectively. HDV-L RNA is a result of an RNA editing event occurring at an amber/W site of HDV-S RNA. RNA editing must be regulated to prevent premature and excessive accumulation of HDV-L RNA in the viral life cycle. In this study, we used...
In chronic hepatitis B (CHB), hepatitis D virus (HDV) superinfection can lead to acute liver failure. The incidence of HDV superinfection is unknown, but is often detected in immigrants from HDV endemic countries. In this report, we characterize long-term clinical and virological outcomes in a hepatitis B virus (HBV) infected carrier before and after HDV superinfection, acquired from their spou...
BACKGROUND Characteristics of hepatitis B (HBV) and delta (HDV) coinfection in various geographical regions, including Israel, remain unclear. Here we studied HDV seroprevalence in Israel, assessed HDV/HBV viral loads, circulating genotypes and hepatitis delta antigen (HDAg) conservation. METHODS Serological anti HDV IgG results from 8969 HBsAg positive individuals tested in 2010-2015 were re...
BACKGROUND Hepatitis D virus (HDV) infection is considered to cause more severe hepatitis than hepatitis B virus (HBV) monoinfection. With more than 9.5 million HBV-infected people, Vietnam will face an enormous health burden. The prevalence of HDV in Vietnamese HBsAg-positive patients is speculative. Therefore, we assessed the prevalence of HDV in Vietnamese patients, determined the HDV-genoty...
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...
The hepatitis delta virus (HDV) is the smallest known RNA pathogen capable of propagation in the human host and causes substantial global morbidity and mortality. Due to its small size and limited protein coding capacity, HDV is exquisitely reliant upon host cellular proteins to facilitate its transcription and replication. Remarkably, HDV does not encode an RNA-dependent RNA polymerase which i...
BACKGROUND Hepatitis D virus (HDV) is a defective virus dependent on hepatitis B virus (HBV) for its replication. Due to HDV transmission routes, patients undergoing hemodialysis and those with HIV infection are at risk of acquiring HDV. OBJECTIVES This study was aimed to determine the frequency and genotype of HDV infection among patients with HIV infection and those undergoing hemodialysis....
مقدمه ویروس هپاتیت HBV) B) شایعترین علت هپاتیت مزمن در ایران میباشد ولی در خصوص شیوع هپاتیت D (HDV) حداقل در شمال شرقی ایران اطلاعات زیادی در دسترس نیست . هـدف ایـن مطالعـه تعیـین شـیوع نسبی HDV در مبتلایان به هپاتیـت مـزمن B ، عوامـل خطـر ابـتلاء بـه HDV و عفونـت همزمـان HDV و هپاتیت C روی HBV میباشد. روش کار ایـن مطالعـه بـه روش توصـیفی - تحلیلـی بـر 350 بیمـار ناقـل مـزمن HBV از مهرمـاه 83 ت...
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