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
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*Fatty Liver/diagnosis/etiology/pathology
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Humans
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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
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Fibrosis
;
Hepatitis C*
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Humans
;
Incidence
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Liver
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Liver Cirrhosis*
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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
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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
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DNA
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Female
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Hepatitis B virus
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Hepatitis B, Chronic
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Hepatitis, Chronic
;
Humans
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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.The effect of low dose corticosteroid therapy on viral reactivation in patients with chronic hepatitis B virus infection.
Hyang Ie LEE ; Geum Youn GWAK ; Moon Kyung PARK ; Hyun Joo SUH ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Byung Chul YOO
Korean Journal of Medicine 2008;74(6):619-623
BACKGROUND/AIMS: We investigated the effect of low dose corticosteroid therapy on HBV reactivation in patients with chronic HBV infection. METHODS: From August 1998 to March 2007, the HBsAg-positive patients who received oral or intravenous corticosteroid therapy for more than 1 week at Samsung Medical Center were included in this retrospective study. We included those patients who received anticancer chemotherapy or organ transplantation, or concurrent antiviral therapy or other immunosuppressive agents. HBV reactivation was defined as a 10-fold increase in the HBV DNA levels compared with baseline. RESULTS: A total of 16 patients were included. They were 45.4+/-16.7 years of age, and the male:female ratio was 14:2. Their combined diseases included bronchial asthma, allergic urticaria, allergic rhinitis, etc. The corticosteroid doses were converted to prednisolone equivalent doses and these varied from 2.5 mg to 50 mg per day. Eleven patients used less than 20 mg of prednisolone per day. The mean medication duration was 60.1 days (range: 7-364 days). Among the patients, only one patient showed HBV reactivation. This ankylosing spondylitis patient was a 31-year old man who took prednisolone 5 mg/day for 364 days. He displayed HBeAg-positivity before corticosteroid treatment. There was no aggravation of the levels of ALT, albumin, bilirubin, and PT between the pre-and post-medication in this patient. CONCLUSIONS: The short term use of low dose corticosteroid is not likely to be related with HBV reactivation in those patients with chronic HBV infection, yet long term use may lead to viral reactivation. Further large scaled, prospective studies on this subject are needed.
Asthma
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Bilirubin
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DNA
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Hepatitis B e Antigens
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Hepatitis B, Chronic
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Hepatitis, Chronic
;
Humans
;
Immunosuppressive Agents
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Organ Transplantation
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Prednisolone
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Retrospective Studies
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Rhinitis
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Rhinitis, Allergic, Perennial
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Spondylitis, Ankylosing
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Transplants
;
Urticaria
7.A Case of Solitary Fibrous Tumor of the Liver.
Soo Yeong KWAK ; Geum Youn GWAK ; Won Kyoung YUN ; Hyo Jin KIM ; In Gu DO ; Jae Won JOH ; Cheol Keun PARK
The Korean Journal of Hepatology 2007;13(4):560-564
A 46-year-old woman was found to have a huge liver mass that was detected by abdominal ultrasonography. Abdominal CT and MRI showed a 10 cm-sized, encapsulated mass occupying the anterior segment of the right hepatic lobe. Extended right hemihepatectomy was performed and pathological examination revealed fibroblast-like spindle cells within dense deposits of collagen. On immunohistochemical staining, these spindle tumor cells showed an intense CD34 immunoreactivity. The patient is alive without evidence of tumor recurrence 7 months after the resection. Solitary fibrous tumor is a very rare neoplasm found in the liver parenchyma, and it has been reported in less than 30 patients in the English literature. We present here the first such case in Korea.
Antigens, CD34/analysis/immunology
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Female
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Humans
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Liver Neoplasms/*diagnosis/pathology/surgery
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Magnetic Resonance Imaging
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Middle Aged
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Solitary Fibrous Tumors/*diagnosis/pathology/surgery
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Tomography, X-Ray Computed
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Tumor Markers, Biological/analysis/immunology
8.A Low Viral Load Predicts a Higher Initial Virologic Response to Adefovir in Patients with Lamivudine-Resistant Chronic Hepatitis B.
Su Rin SHIN ; Kwang Cheol KOH ; Geum Youn GWAK ; Moon Seok CHOI ; Joon Hyoek LEE ; Seung Woon PAIK ; Byung Chul YOO
Gut and Liver 2010;4(4):530-536
BACKGROUND/AIMS: Adefovir (ADV) is the preferred drug for treating lamivudine (LAM)-resistant hepatitis B. However, not all patients who face virologic breakthrough during LAM treatment respond to ADV. The aim of this study was to determine the factors associated with efficacy of ADV in LAM-resistant hepatitis B patients. METHODS: The medical records of 231 patients who received ADV due to LAM-resistance were reviewed. Efficacy was assessed by the initial virologic response (IVR), defined as hepatitis B virus (HBV) DNA not being undetectable by real-time PCR at 6 months of ADV treatment. RESULTS: Seventy patients (30%) achieved IVR. While 'add-on' modality, hepatitis B e antigen (HBeAg) negativity, and low baseline HBV DNA levels were associated with IVR in univariate analysis, multivariate analysis revealed HBeAg status and the DNA level to be the significant factors. The probability of IVR achievement increased sharply per each log10 copies/mL decrement in the baseline viral load, which was 133 times in patients who had HBV DNA <10(5) copies/mL compared with those who had > or =10(8) copies/mL. CONCLUSIONS: Factors associated with the IVR were HBeAg negativity and a low baseline viral load. Therefore, when virologic breakthrough with genotypic resistance emerges during LAM therapy, ADV treatment should be considered immediately before further increases in viral load. Additional long-term follow-up data are warranted.
Achievement
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Adenine
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DNA
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Drug Resistance, Viral
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Follow-Up Studies
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Hepatitis B
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Hepatitis B e Antigens
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Hepatitis B virus
;
Hepatitis B, Chronic
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Hepatitis, Chronic
;
Humans
;
Lamivudine
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Lipopolysaccharides
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Medical Records
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Multivariate Analysis
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Organophosphonates
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Real-Time Polymerase Chain Reaction
;
Viral Load
9.A Case of Nonalcoholic Steatohepatitis and Small Intestinal Bacterial Overgrowth with Peripheral Edema Caused by Intestinal Bypass Surgery and Relieved by Repair.
Young Kyung SUNG ; Geum Youn GWAK ; Moon Seok CHOI ; Kwang Chul KOH ; Seung Woon PAIK ; Byung Chul YOO ; Joon Hyeok LEE
Gut and Liver 2012;6(4):520-523
Intestinal bypass surgery, particularly jejuno-ileal bypass surgery, performed for the purpose of weight reduction may cause an unexpected exacerbation of nonalcoholic steatohepatitis (NASH). Here, we report a case of NASH caused by small intestinal bacterial overgrowth, which developed after jejuno-colic bypass surgery and resolved dramatically after surgical correction.
Edema
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Fatty Liver
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Jejunoileal Bypass
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Weight Loss
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
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Aged
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Esophageal and Gastric Varices/*pathology
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Female
;
Follow-Up Studies
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Gastrointestinal Hemorrhage/*drug therapy/mortality/surgery
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Humans
;
Ligation
;
Liver Cirrhosis/etiology
;
Logistic Models
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Male
;
Middle Aged
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Odds Ratio
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Proportional Hazards Models
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Propranolol/*therapeutic use
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Retrospective Studies
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Severity of Illness Index
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Survival Rate