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Hepatitis B virus (HBV) e antigen (HBeAg) seroconversion during chronic HBV infection is known to play an important role in disease progression and patient response to antiviral agents. The aim of the present study was to analyze gender disparity in distribution of major hydrophilic region (MHR) variants according to HBeAg serostatus. Prevalence of MHR(More)
OBJECTIVES Despite the pathogenic role of the basal core promoter (BCP) and the precore mutations in chronic hepatitis B virus (HBV) infection, their role in the progression of liver disease is still controversial. We analyzed whether the accumulation of these mutations might enhance the progression of HBV-related chronic liver disease. METHODS Forty(More)
BACKGROUND/AIMS Anisakiasis is frequent in Jeju Island because of the people's habit of ingesting raw fish. This study evaluated the clinical characteristics of patients with small bowel anisakiasis and compared them with those of patients with gastric anisakiasis. METHODS We retrospectively reviewed the medical records of 109 patients diagnosed with(More)
BACKGROUNDS/AIMS The hepatitis C virus (HCV) genotype affects clinical outcomes of HCV infection, in terms of the response to antiviral therapy and progression of chronic liver diseases, and shows geographic differences in distribution. The aim of this study was to elucidate the HCV genotypes in patients with chronic HCV infection in Jeju, which is an(More)
Over the past decade, advances in the antiviral therapy in patients with chronic hepatitis B have enabled the sustained suppression of hepatitis B viral replication and the prevention of progressive liver disease. Hepatitis B surface antigen (HBsAg) has been used to diagnose patients with hepatitis B virus infection. Recently, test for quantitative HBsAg(More)
BACKGROUND/AIMS The point mutations in 23S rRNA gene accounts for the majority of the clarithromycin resistance of Helicobacter pylori. This study aimed to investigate the association between the clarithromycin-resistance of H. pylori and the failure of primary H. pylori eradication therapy in Jeju Island. METHODS Between April 2011 and October 2012,(More)
An 80-year-old woman presenting with chest pain was found to have a large, lobulated soft tissue mass in the liver and nearby tissues on abdominal computed tomography (CT). The tumor had invaded the common hepatic artery and main portal vein. Jaundice developed 4 wk later, at which point, a pancreas and biliary CT scan revealed a large mass in the right(More)
BACKGROUND Adefovir (ADV) resistance is more frequent in lamivudine (LMV)-resistant chronic hepatitis B (CHB) patients than in nucleos(t)ide analogue-naïve patients. The majority of LMV-resistant mutants harbor the rtM204V/I mutation, while a minor fraction harbor the rtA181V/T mutation. We aimed to elucidate the mechanism of the high rate of ADV resistance(More)
OBJECTIVE In vitro studies showed that mutations in the basal core promoter (BCP) or precore (PC) region restore the replication inefficiency of the lamivudine-resistant mutant. The aim of this study was to clarify the effect of molecular characteristics on the antiviral response to adefovir in patients with lamivudine-resistant chronic hepatitis B (CHB).(More)
A Dieulafoy lesion in the rectum is a very rare and it can cause massive lower gastrointestinal bleeding. An 83-year-old man visited our hospital. He had chronic constipation and had taken aspirin for about 10 years because of a previous brain infarction. He was admitted because of a recent brain stroke. On the third hospital day, he had massive(More)