1.Activated stellate cells express the TRAIL receptor-2/death receptor-5 and undergo TRAIL-mediated apoptosis.
Geum Youn GWAK ; Jung Hwan YOON
The Korean Journal of Hepatology 2003;9(2):145-146
No abstract available.
Adult
;
*Fatty Liver/diagnosis/etiology/pathology
;
Humans
;
Male
2.Treatment of Hepatitis C in Special Conditions: Liver Cirrhosis.
Korean Journal of Medicine 2015;88(6):643-646
Acquiring a sustained virological response (SVR) in patients with cirrhosis or advanced hepatic fibrosis reduces liver disease-related mortality and the incidence of hepatocellular carcinoma. However, the SVR rate of the current standard of care, which is combination therapy with peg-interferon-alpha and ribavirin, is significantly lower, and treatment-related complications occur more frequently in patients with cirrhosis. Thus, antiviral treatment should be individualized in this population. This review highlights the issues associated with anti-hepatitis C virus treatment in patients with compensated and decompensated cirrhosis.
Carcinoma, Hepatocellular
;
Fibrosis
;
Hepatitis C*
;
Humans
;
Incidence
;
Liver
;
Liver Cirrhosis*
;
Mortality
;
Ribavirin
;
Standard of Care
3.Renewed 2015 Clinical Practice Guidelines for Management of Hepatitis C by Korean Association for the Study of the Liver; What Has Been Changed? - Treatment of Patients with Decompensated Cirrhosis.
The Korean Journal of Gastroenterology 2016;67(3):137-141
HCV-related decompensated liver cirrhosis is a life-threatening illness with an average 5-year survival rate of 50%. Because these patients have higher risk of morbidity and mortality including development of hepatocellular carcinoma, the benefits of eradicating the virus may be greater than in those with less-advanced disease. Recently, direct-acting antiviral agents (DAAs) are replacing interferon-based regimens that have serious adverse events and low tolerability in the treatment of HCV infection. Many clinical trials using combination of several DAAs with or without ribavirin are now actively on-going in HCV-related decompensated cirrhosis, and encouraging data are beginning to appear. In this review, recent advances in the treatment of HCV-related decompensated cirrhosis are introduced with special focus on new DAAs.
Antiviral Agents/*therapeutic use
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Drug Therapy, Combination
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Hepatitis C/complications/*drug therapy/pathology
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Humans
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Interferon-alpha/therapeutic use
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Liver Cirrhosis/*complications/pathology
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Practice Guidelines as Topic
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Republic of Korea
;
Ribavirin/therapeutic use
4.Chronic Hepatitis B in Pregnancy.
Korean Journal of Medicine 2012;83(1):50-55
Hepatitis B virus (HBV) infection during pregnancy brings up unique management challenges. Varying aspects of care must be considered, including the effects of pregnancy on the course of HBV infection, effects of HBV infection on maternal and fetal health, treatment of HBV during and after pregnancy, and prevention of perinatal infection. For those with chronic HBV infection, the course of disease is usually unchanged during pregnancy. However, flares have been reported shortly after delivery. Women with high HBV DNA titer have an increased likelihood of perinatal transmission and may contribute to the failure of current passive-active immunoprophylaxis at birth. The aim of the present review is to provide a tool that may help physicians to manage correctly HBV infection in pregnancy.
Breast Feeding
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Cesarean Section
;
DNA
;
Female
;
Hepatitis B virus
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Hepatitis B, Chronic
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Hepatitis, Chronic
;
Humans
;
Parturition
;
Pregnancy
5.Diagnosis of Non-alcoholic Fatty Liver Disease.
Journal of Korean Diabetes 2014;15(2):82-92
Although the classical gold standard for diagnosing and staging non-alcoholic fatty liver disease (NAFLD) and assessing fibrosis is liver biopsy, the procedure has several drawbacks, such as sample error, subjectivity in interpretation, high cost, and a small but real risk of complications.In an attempt to replace liver biopsy and to subcategorize patients with NAFLD into different prognoses, many non-invasive methods using various biomarkers, scoring systems, and imaging methods, such as elastography, have been attempted in the last decade. This article summarizes non-invasive diagnostic tests for the diagnosis of NAFLD/Nonalcoholic steatohepatitis, as well as the limitations and merits of liver biopsy.
Biomarkers
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Biopsy
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Diagnosis*
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Diagnostic Tests, Routine
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Elasticity Imaging Techniques
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Fatty Liver*
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Fibrosis
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Humans
;
Liver
;
Prognosis
6.Antiviral Therapy in Patients after Treatment for Hepatitis C-Related Hepatocellular Carcinoma.
Su Rin SHIN ; Seung Woon PAIK ; Geum Youn GWAK ; Moon Seok CHOI ; Joon Hyoek LEE ; Kwang Cheol KOH ; Byung Chul YOO
Gut and Liver 2011;5(1):77-81
BACKGROUND/AIMS: Despite great progress, antiviral treatment for chronic hepatitis C in patients with prior hepatocellular carcinoma (HCC) has been rarely investigated. We evaluated the efficacy and safety of antiviral therapy following treatment for hepatitis C-related HCC. METHODS: Thirteen patients (age 34 to 60 years) who were treated with peginterferon plus ribavirin after treatment for HCC were reviewed. RESULTS: There were 6 patients with genotype 1 and 7 patients with genotype 2. All patients showed advanced fibrosis (> or =F3) but belonged to the Child-Pugh class A. Treatment was stopped in 2 patients because of recurrent HCC and in 1 patient due to a lack of early virologic response. Seven patients achieved sustained virologic response and three patients relapsed. The sustained virologic response rate was 54% overall, 17% in genotype 1, and 86% in genotype 2. No significant adverse events were reported. CONCLUSIONS: Antiviral therapy should not be excluded in patients who were previously treated with HCC with genotype 2 chronic hepatitis C, in which an efficacious antiviral treatment for chronic hepatitis C was feasible. Additional study is needed to prove the validity of antiviral therapy in patients with genotype 1 hepatitis C-related HCC.
Carcinoma, Hepatocellular
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Fibrosis
;
Genotype
;
Hepatitis
;
Hepatitis C, Chronic
;
Humans
;
Ribavirin
7.Enhanced Resolution of Eosinophilic Liver Abscess Associated with Toxocariasis by Albendazole Treatment.
Eun Young JANG ; Moon Seok CHOI ; Geum Youn GWAK ; Kwang Cheol KOH ; Seung Woon PAIK ; Joon Hyeok LEE ; Yong Han PAIK ; Byung Chul YOO
The Korean Journal of Gastroenterology 2015;65(4):222-228
BACKGROUND/AIMS: Visceral larva migrans, caused by Toxocara canis and Toxocara cati, has emerged as a significant cause of eosinophilic liver abscess (ELA). Differentiation of ELA associated with toxocariasis (ELA-T) from metastasis or primary liver malignancy is sometimes difficult. However, the role of albendazole treatment remains uncertain in this condition. The aim of this study was to evaluate whether albendazole can enhance the radiologic resolution of ELA-T. METHODS: We retrospectively reviewed the medical records of the patients diagnosed with ELA-T at our institution between January 2008 and December 2011. ELA-T was diagnosed based on the imaging findings on computed tomography or magnetic resonance imaging and the presence of positive serum IgG antibody for Toxocara canis. Among a total of 163 patients, 32 patients received albendazole (albendazole group) and 131 did not (control group). Baseline characteristics and fate of liver nodules were compared between the two groups. RESULTS: Baseline characteristics (age, sex, number and maximal size of lesions, eosinophil count) were similar between the two groups. Median duration for achieving radiologic resolution in the albendazole group was significantly shorter than in the control group (207 days [range 186-228] vs. 302 days [range 224-380], p=0.023). In Cox regression analysis of the cumulative rates of radiologic resolution, the hazard ratio for albendazole treatment was 1.99 (95% confidence interval, 1.22-3.23). CONCLUSIONS: Radiologic resolution of ELA-T can be accelerated with albendazole treatment. Hence, inconvenience associated with long-term follow-up and unnecessary worries among patients can be eliminated with albendazole treatment.
Adult
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Aged
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Aged, 80 and over
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Albendazole/*therapeutic use
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Animals
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Antiprotozoal Agents/*therapeutic use
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Eosinophils/*immunology
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Female
;
Humans
;
Immunoglobulin G/blood
;
Larva Migrans, Visceral/*drug therapy/parasitology
;
Liver/enzymology/metabolism
;
Liver Abscess/*etiology
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Magnetic Resonance Imaging
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Male
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Middle Aged
;
Proportional Hazards Models
;
Retrospective Studies
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Tomography, X-Ray Computed
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Toxocara canis/immunology/isolation & purification
8.A Case of Rapid Progression of Hepatocellular Carcinoma after Radiofrequency Ablation.
Keol LEE ; Dong Hyun SINN ; Geum Youn GWAK ; Yong Han PAIK ; Moon Seok CHOI ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK
Journal of Liver Cancer 2015;15(2):118-121
The therapeutic effectiveness and safety of radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC) have been clinically established, and the procedure is now generally accepted as a curative treatment for very early or early stage HCC. Recently, we observed an aggressive recurrence after RFA for HCC in 50 year-old female. RFA was performed for a 2.7 cm sized HCC, which was completely ablated. However, 7 months later, aggressive intrahepatic recurrence was observed. Herein, we report a case with a discussion.
Ablation Techniques
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Carcinoma, Hepatocellular*
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Catheter Ablation*
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Female
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Humans
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Recurrence
9.Comparison of the Clinical Features of Hepatitis A between HBsAg-Positive and HBsAg-Negative Patients.
Kwang Min KIM ; Sung June EO ; Geum Youn GWAK ; Moon Seok CHOI ; Joon Hyeok LEE ; Kwang Cheol KOH ; Byung Chul YOO ; Seung Woon PAIK
Gut and Liver 2011;5(4):500-505
BACKGROUND/AIMS: The notion that acute hepatitis A superimposed on chronic hepatitis B infection leads to a worse outcome than acute hepatitis A alone remains controversial. The aim of this study was to determine the influence of the presence of hepatitis B surface antigen (HBsAg) on the severity of acute hepatitis A. METHODS: We retrospectively analyzed 449 patients hospitalized for acute hepatitis A from January 2000 to February 2010 and compared clinical outcomes based on the presence of HBsAg. RESULTS: Of the 449 patients, 30 patients were in the HBsAg-positive group and 419 in the HBsAg-negative group. The HBsAg-positive group was older than the HBsAg-negative group (36.1+/-8.3 vs 31.8+/-8.5 years, p=0.004); however, other baseline characteristics were similar between the 2 groups. Mean peak values of prothrombin time, serum total bilirubin, and serum creatinine at admission were significantly higher in the HBsAg-positive group. When comparing clinical outcomes between the 2 groups, gastrointestinal bleeding, acute renal failure, and acute liver failure were more frequently observed in the HBsAg-positive group. In particular, the incidence of acute liver failure was approximately 9-fold higher in the HBsAg-positive group than in the HBsAg-negative group (23.3% vs 3.3%; odds ratio [OR], 8.80; p<0.001). Multivariate analysis showed that HBsAg (OR, 7.43; 95% confidence interval [CI], 2.56 to 21.57) and age (OR, 1.07; 95% CI, 1.02 to 1.13) were independent risk factors for the occurrence of acute liver failure. CONCLUSIONS: In patients with chronic hepatitis B infection, acute hepatitis A is associated with more severe clinical outcomes, including acute liver failure, compared with patients with acute hepatitis A alone.
Acute Kidney Injury
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Bilirubin
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Creatinine
;
Hemorrhage
;
Hepatitis
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Hepatitis A
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Hepatitis B Surface Antigens
;
Hepatitis B, Chronic
;
Humans
;
Incidence
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Liver
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Liver Failure, Acute
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Multivariate Analysis
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Odds Ratio
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Prothrombin Time
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Retrospective Studies
;
Risk Factors
10.The comparison of esophageal variceal ligation plus propranolol versus propranolol alone for the primary prophylaxis of esophageal variceal bleeding.
Dongmo JE ; Yong Han PAIK ; Geum Youn GWAK ; Moon Seok CHOI ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Byung Chul YOO
Clinical and Molecular Hepatology 2014;20(3):283-290
BACKGROUND/AIMS: To investigate the efficacy and longterm outcome of esophageal variceal ligation (EVL) plus propranolol in comparison with propranolol alone for the primary prophylaxis of esophageal variceal bleeding. METHODS: A total of 504 patients were retrospectively enrolled in this study. 330 patients were in propranolol group (Gr1) and 174 patients were in EVL plus propranolol group (Gr2). The endpoints of this study were esophageal variceal bleeding and mortality. Association analyses were performed to evaluate bleeding and mortality between Gr1 and Gr2. RESULTS: EVL was more applied in patients with high risk, such as large-sized varices (F2 or F3) or positive red color signs. Total 38 patients had bleeds, 32 in Gr1 and 6 in Gr2. The cumulative probability of bleeding at 120 months was 13% in Gr1 versus 4% in Gr2 (P=0.04). The predictive factors of variceal bleeding were red color signs (OR 2.962, P=0.007) and the method of propranolol plus EVL (OR 0.160, P=0.000). 20 patients died in Gr1 and 12 in Gr2. Mortality rates are similar in the two groups compared, 6.7% in Gr1 and 6.9% in Gr2. The cumulative probability of mortality at 120 months was not significantly different in the two groups (7% in Gr1, 12% in Gr2, P=0.798). The prognostic factors for mortality were age over 50 (OR 5.496, P=0.002), Child-Pugh class B (OR 3.979, P=0.001), and Child-Pugh class C (OR 10.861, P=0.000). CONCLUSIONS: EVL plus propranolol is more effective than propranolol alone in the prevention of the first variceal bleeding in patients with liver cirrhosis.
Adrenergic beta-Antagonists/*therapeutic use
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Adult
;
Aged
;
Esophageal and Gastric Varices/*pathology
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Female
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Follow-Up Studies
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Gastrointestinal Hemorrhage/*drug therapy/mortality/surgery
;
Humans
;
Ligation
;
Liver Cirrhosis/etiology
;
Logistic Models
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Male
;
Middle Aged
;
Odds Ratio
;
Proportional Hazards Models
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Propranolol/*therapeutic use
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Retrospective Studies
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Severity of Illness Index
;
Survival Rate