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Kim JD, Ahn BM, Joo BS, Kwon JY, Chung HJ, Yu SB. Effect of propofol on prostaglandin E2 production and prostaglandin synthase-2 and cyclooxygenase-2 expressions in amniotic membrane cells. J Anesth 2014; 28:911-8. [PMID: 24752596 DOI: 10.1007/s00540-014-1830-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 03/30/2014] [Indexed: 11/28/2022]
Abstract
PURPOSE Surgery during pregnancy can be a cause of preterm labor or birth, possibly resulting from anesthetic agents or direct effects of surgery. This study was aimed to investigate the effect of propofol on uterine contractility by examining prostaglandin E2 (PGE2) production and the expression of PGE synthase 2 (PGES2) and cyclooxygenase-2 (COX-2) in amniotic membrane cells. METHODS Amniotic membranes were collected from healthy full-term women who underwent cesarean section at 37-40 weeks of gestation. The amniotic cells were cultured in α-modified-Eagle's medium with 10% fetal bovine serum for 24 h at 5% CO2 in a 37 °C incubator. Then, various doses of propofol (0.01-10 μg/ml) were used for treatment for 3 h. PGE2 concentrations in conditioned media were evaluated using ELISA. PGES2 and COX-2 expression were examined using RT-PCR and Western blot. Cell viability and apoptosis were examined by MTT, ATP assays, and the TUNEL method. RESULTS PGE2 production significantly decreased at 0.1 and 1.0 μg/ml propofol concentrations compared to controls. COX-2 and PGES2 mRNA expression was decreased in a dose-dependent manner with a significant difference at 0.1 μg/ml propofol compared to controls. The protein expression of COX-2 showed a similar result to mRNA expression, but protein expression of PGES2 was not significantly decreased. No effect of propofol was found in cell viability. CONCLUSIONS This study showed that propofol reduced the production of PGE2 and the expression of COX-2 and PGES2 without affecting cell viability.
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Affiliation(s)
- Ju Deok Kim
- Department of Anesthesiology and Pain Medicine, Kosin University Gospel Hospital, 34 Amnam-dong, Seogu, Busan, 602-702, Korea
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Suh JI, Sakong JK, Lee K, Lee YK, Park JB, Kim DJ, Seo YS, Lee JD, Ko SY, Lee BS, Kim SH, Kim BS, Kim YS, Lee HJ, Kim IH, Sohn JH, Kim TY, Ahn BM. Anxiety and depression propensities in patients with acute toxic liver injury. World J Gastroenterol 2013; 19:9069-9076. [PMID: 24379633 PMCID: PMC3870561 DOI: 10.3748/wjg.v19.i47.9069] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 10/12/2013] [Accepted: 10/18/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate anxiety and depression propensities in patients with toxic liver injury.
METHODS: The subjects were divided into three groups: a healthy control group (Group 1, n = 125), an acute non-toxic liver injury group (Group 2, n = 124), and a group with acute toxic liver injury group caused by non-commercial herbal preparations (Group 3, n = 126). These three groups were compared and evaluated through questionnaire surveys and using the Hospital Anxiety-Depression Scale (HADS), Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI), and the hypochondriasis scale.
RESULTS: The HADS anxiety subscale was 4.9 ± 2.7, 5.0 ± 3.0 and 5.6 ± 3.4, in Groups 1, 2, and 3, respectively. The HADS depression subscale in Group 3 showed the most significant score (5.2 ± 3.2, 6.4 ± 3.4 and 7.2 ± 3.4 in Groups 1, 2, and 3, respectively) (P < 0.01 vs Group 1, P < 0.05 vs Group 2). The BAI and BDI in Group 3 showed the most significant score (7.0 ± 6.3 and 6.9 ± 6.9, 9.5 ± 8.6 and 8.8 ± 7.3, 10.7 ± 7.2 and 11.6 ± 8.5 in Groups 1, 2, and 3, respectively) (BAI: P < 0.01 vs Group 1, P < 0.05 vs Group 2) (BDI: P < 0.01 vs Group 1 and 2). Group 3 showed a significantly higher hypochondriasis score (8.2 ± 6.0, 11.6 ± 7.5 and 13.1 ± 6.5 in Groups 1, 2, and 3, respectively) (P < 0.01 vs Group 1, P < 0.05 vs Group 2).
CONCLUSION: Psychological factors that present vulnerability to the temptation to use alternative medicines, such as herbs and plant preparations, are important for understanding toxic liver injury.
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Suk KT, Kim DJ, Kim CH, Park SH, Yoon JH, Kim YS, Baik GH, Kim JB, Kweon YO, Kim BI, Kim SH, Kim IH, Kim JH, Nam SW, Paik YH, Suh JI, Sohn JH, Ahn BM, Um SH, Lee HJ, Cho M, Jang MK, Choi SK, Hwang SG, Sung HT, Choi JY, Han KH. A prospective nationwide study of drug-induced liver injury in Korea. Am J Gastroenterol 2012; 107:1380-7. [PMID: 22733303 DOI: 10.1038/ajg.2012.138] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To address a growing concern about drug-induced liver injury (DILI), a nationwide study was performed to investigate the significance of DILI in Korea. METHODS From May 2005 to May 2007, cases of DILI (alanine transferase > 3 × upper normal limit or total bilirubin > 2 × upper normal limit) from 17 referral university hospitals were prospectively enrolled. Adjudication by the seven review boards was considered for the confirmation of causality and the Roussel Uclaf Causality Assessment Method (RUCAM) scale was used. RESULTS A total of 371 cases were diagnosed with DILI. The extrapolated incidence of hospitalization at university hospital in Korea was 12/100,000 persons/year. The causes included "herbal medications" (102, 27.5%), "prescription or non-prescription medications" (101, 27.3%), "health foods or dietary supplements" (51, 13.7%), "medicinal herbs or plants" (35, 9.4%), "folk remedies" (32, 8.6%), "combined" (30, 8.2%), "herbal preparations" (12, 3.2%), and others (8, 2.2%). Nine cases were linked to acetaminophen. The frequencies of hepatocellular, mixed, and cholestatic types were 76.3, 14.8, and 8.9%, respectively. A total of 234 cases met the criteria for Hy's law. Five patients died or underwent transplantation. Twenty-five cases (21 herbs and 4 medications) did not meet the time-to-onset criteria of the RUCAM. CONCLUSIONS DILI appears to be a highly relevant health problem in Korea. "Herbal medications" are the principal cause of DILI. A more objective and reproducible causality assessment tool is strongly desired as the RUCAM scale frequently undercounts the cases caused by herbs owing to a lack of previous information and incompatible time criteria.
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Affiliation(s)
- Ki Tae Suk
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, South Korea
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Abstract
A novel human leukocyte antigen (HLA)-B*51 allele, officially named HLA-B*5158, was identified in the cord blood from Korean. HLA-B*5158 allele shows single nucleotide difference from B*510101 in exon 2 at nucleotide position 214 (C/T), resulting in an amino acid substitution, Trp48Arg.
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Affiliation(s)
- E Y Roh
- Department of Laboratory Medicine, Seoul National University Boramae Hospital, Seoul, Korea.
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Lee SJ, Ahn BM, Kim JG, Sohn SK, Chae YS, Moon JH, Lee EB, Kim JC, Park IK, Jeon SW. Definitive chemoradiotherapy with capecitabine and cisplatin in patients with esophageal cancer: a pilot study. J Korean Med Sci 2009; 24:120-5. [PMID: 19270824 PMCID: PMC2650982 DOI: 10.3346/jkms.2009.24.1.120] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Accepted: 05/28/2008] [Indexed: 12/27/2022] Open
Abstract
We aimed to evaluate the feasibility of concurrent chemoradiotherapy (CRT) with capecitabine and cisplatin in patients with squamous cell carcinoma of the esophagus. Eighteen patients with esophageal cancer were enrolled on the study. The chemotherapy during CRT consisted of two cycles of intravenous cisplatin of 60 mg/m(2) on day 1 and oral capecitabine 825 mg/m(2) twice daily from day 1 to 14 at 3-week intervals. The radiotherapy (2.0 Gy fraction/day to a total dose of 60 Gy) was delivered to the primary tumor site and regional lymph node. After concurrent CRT, 2 cycles of capecitabine (1,000 mg/m(2) b.i.d from days 1 to 14) plus cisplatin (60 mg/m(2) on day 1) were added every 3 weeks. All patients completed the planned treatment. After the chemoradiotherapy, 12 complete responses (CR, 66.7%) and 6 partial responses (PR, 33.3%) were confirmed. Grade 3 or 4 neutropenia only occurred in 2 patients, plus no treatment-related death was observed. At a median follow-up duration of 14.9 months, the estimated overall survival and progression-free survival rate at 2-yr was 70.7% and 54.4%, respectively. Concurrent CRT with capecitabine and cisplatin was found to be well-tolerated and effective in patients with esophageal cancer.
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Affiliation(s)
- Soo Jung Lee
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Byung Min Ahn
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jong Gwang Kim
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Sang Kyun Sohn
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Yee Soo Chae
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Joon Ho Moon
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Eung Bae Lee
- Department of Chest Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jae Chul Kim
- Department of Radiation Oncology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - In Kyu Park
- Department of Radiation Oncology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Seong Woo Jeon
- Department of Internal Medicine, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
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Chae YS, Kim JG, Sohn SK, Cho YY, Ahn BM, Moon JH, Jeon SW, Park JY, Lee IT, Choi GS, Jun SH. Association of vascular endothelial growth factor gene polymorphisms with susceptibility and clinicopathologic characteristics of colorectal cancer. J Korean Med Sci 2008; 23:421-7. [PMID: 18583877 PMCID: PMC2526538 DOI: 10.3346/jkms.2008.23.3.421] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Since vascular endothelial growth factor (VEGF) is known to be a potent pro-angiogenic factor, we evaluated the potential association of two VEGF gene polymorphisms (-634G>C and 936C>T) with the susceptibility and the clinicopathologic characteristics of colorectal cancer (CRC). The VEGF genotypes were determined using fresh colorectal tissue from 465 patients who had undergone a surgical resection and peripheral blood lymphocytes from 413 healthy controls by PCR/DHPLC assay. For the -634G>C polymorphism, the -634 GC or CC genotype was associated with a decreased risk of CRC (odds ratio [OR], 0.62; p=0.001) as a dominant model of C allele, whereas the 936 TT genotype correlated with advanced stage/ metastasis, a high serum level of CA19-9, and an higher grade in patients with CRC. In the haplotype analyses, haplotype -634C/936C and -634G/936T were associated with a decreased susceptibility of CRC (OR, 0.53 and 0.56; p<0.001, respectively). These observations imply that the VEGF gene polymorphisms may be associated with the susceptibility or clinicopathologic features of CRC. However, further studies of other VEGF sequence variants and their biological functions are needed to understand the role of the VEGF gene polymorphisms in the development and progression of CRC.
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Affiliation(s)
- Yee Soo Chae
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jong Gwang Kim
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Sang Kyun Sohn
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Yoon Young Cho
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Byung Min Ahn
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Joon Ho Moon
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Seoung Woo Jeon
- Department of Internal Medicine, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jae Yong Park
- Department of Biochemistry, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - In Taek Lee
- Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Gyu Seog Choi
- Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Soo-Han Jun
- Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
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Choi JH, Ahn BM, Yi J, Lee JH, Lee JH, Nam SW, Chon CY, Han KH, Ahn SH, Jang IJ, Cho JY, Suh Y, Cho MO, Lee JE, Kim KH, Lee MG. MRP2 haplotypes confer differential susceptibility to toxic liver injury. Pharmacogenet Genomics 2007; 17:403-15. [PMID: 17502832 DOI: 10.1097/01.fpc.0000236337.41799.b3] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVES Multidrug resistance protein 2 (MRP2, ABCC2) plays an important role in the biliary clearance of a wide variety of endogenous and exogenous toxic compounds. Therefore, polymorphisms and mutations in the MRP2 gene may affect individual susceptibility to hepatotoxic reactions. METHODS Associations between genetic variations of MRP2 and toxic hepatitis were investigated using integrated population genetic analysis and functional molecular studies. RESULTS Using a gene scanning method, 12 polymorphisms and mutations were found in the MRP2 gene in a Korean population. Individual variation at these sites was analyzed by conventional DNA screening in 110 control subjects and 94 patients with toxic hepatitis induced mostly by herbal remedies. When haplotypes were identified, over 85% of haploid genes belonged to the five most common haplotypes. Among these, a haplotype containing the g.-1774delG polymorphism showed a strong association with cholestatic or mixed-type hepatitis, and a haplotype containing the g.-1549G>A, g.-24C>T, c.334-49C>T, and c.3972C>T variations was associated with hepatocellular-type hepatitis. A comprehensive functional study of these sites revealed that genetic variations in the promoter of this gene are primarily responsible for the susceptibility to toxic liver injuries. The g.-1774delG variation and the combined variation of g.-1549G>A and g.-24C>T decreased MRP2 promoter activity by 36 and 39%, respectively. In addition, the promoter carrying the g.-1774delG allele showed a defect in the bile acid-induced induction of promoter activity. CONCLUSIONS These results suggest that genetic variations of MRP2 are an important predisposing factor for herbal-induced or drug-induced toxic liver injuries.
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Affiliation(s)
- Ji Ha Choi
- Department of Pharmacology, Institute of Gastroenterology, Yonsei University College of Medicine, 134 Sinchon-Dong Seoul 120-752, Korea
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Moon JH, Kim JG, Sohn SK, Baek JH, Cho YY, Chae YS, Ahn BM, Kim SN, Lee SJ, Lee IT, Choi GS, Jun SH. Outpatient-basis chemotherapy of oxaliplatin, 5-fluorouracil, and leucovorin as first-line treatment for patients with metastatic or recurrent colorectal cancer. J Korean Med Sci 2007; 22:400-4. [PMID: 17596644 PMCID: PMC2693628 DOI: 10.3346/jkms.2007.22.3.400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The objectives of the present study were to evaluate the efficacy and safety of an outpatient-basis chemotherapy of oxaliplatin, 5-fluorouracil, and leucovorin as the first-line treatment for patients with advanced colorectal cancer. Forty-three histologically confirmed patients with metastatic or recurrent colorectal cancer were enrolled. The chemotherapy consisted of oxaliplatin 85 mg/m(2) as a 2-hr infusion on day 1, plus leucovorin 30 mg/m(2) over 10 min, followed by bolus 5-fluorouracil 400 mg/m(2) and an 8-hr infusion of 5-fluorouracil 600 mg/m(2) on days 1 and 2 (modified FOLFOX4), all of which were administered on an outpatient basis every 2 weeks. The median age was 58 yr (range 33-72 yr), and 25 (58.1%) patients had metastatic diseases. Eventually, 39 patients were assessable for efficacy and all assessable for toxicity. Four (9.3%) complete responses and 11 (25.6%) partial responses were confirmed, giving an overall response rate of 34.9% (95% CI; 20.0-49.7%). The median time to progression and median overall survival for all patients was 6.1 months and 17.4 months, respectively. Grade 3/4 neutropenia occurred in 2 patients (4.7%) and febrile neutropenia was observed in 1 patient (2.3%). Modified FOLFOX4, an outpatient-basis regimen, was found to be well-tolerated and effective as the first-line chemotherapy in patients with advanced colorectal cancer.
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Affiliation(s)
- Joon Ho Moon
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jong Gwang Kim
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Sang Kyun Sohn
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jin Ho Baek
- Department of Oncology/Hematology, Dongguk University Medical Center, Gyeongju, Korea
| | - Yoon Young Cho
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Yee Soo Chae
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Byung Min Ahn
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Shi Nae Kim
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Soo Jung Lee
- Department of Oncology/Hematology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - In Taek Lee
- Department of General Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Gyu Seog Choi
- Department of General Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Soo Han Jun
- Department of General Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
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Yoon SY, Kim JM, Oh JH, Jeon YJ, Lee DS, Kim JH, Choi JY, Ahn BM, Kim S, Yoo HS, Kim YS, Kim NS. Gene expression profiling of human HBV- and/or HCV-associated hepatocellular carcinoma cells using expressed sequence tags. Int J Oncol 2006; 29:315-27. [PMID: 16820872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Liver cancer is one of the leading causes of cancer death worldwide. To identify novel target genes that are related to liver carcinogenesis, we examined new genes that are differentially expressed in human hepatocellular carcinoma (HCC) cell lines and tissues based on the expressed sequence tag (EST) frequency. Eleven libraries were constructed from seven HCC cell lines and three normal liver tissue samples obtained from Korean patients. An analysis of gene expression profiles for HCC was performed using the frequency of ESTs obtained from these cDNA libraries. Genes were identified (n=120) as being either up- or down-regulated in human liver cancer cells. Among these, 14 genes (FTL, K-ALPHA1, LDHA, RPL4, ENO1, ANXA2, RPL9, RPL10, RPL13A, GNB2L1, AMBP, GC, A1BG, and SERPINC1), in addition to previously well-known liver cancer related genes, were confirmed to be differentially expressed in seven liver cancer cell lines and 17 HCC tissues by semi-quantitative RT-PCR. In addition, 73 genes, in which there was a significant difference (P>0.99) between HBV- and HCV-associated HCC cells, were selected. Of these, expression patterns of 14 (RPLP0, AKR1C, KRT8, GPX4, RPS15, ID1, RPS21, VIM, EEF1G, EIF4A1, HLA-C, FN1, CD44, and RPS10) were confirmed by semi-quantitative RT-PCR in four of HBV- and three of HCV-associated HCC cell lines. Among those genes, an immunohistochemical analysis for ANXA2 showed that it is expressed at high levels in HCC. Using an analysis of EST frequency, the newly identified genes, especially ANXA2, represent potential biomarkers for HCC and useful targets for elucidating the molecular mechanisms associated with HCC involving virological etiology.
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Affiliation(s)
- Sun Young Yoon
- Laboratory of Human Genomics, Genome Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-333, Korea
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Son HS, Kim GS, Lee SW, Kang SB, Back JT, Nam SW, Lee DS, Ahn BM. [Toxic hepatitis associated with carp juice ingestion]. Korean J Hepatol 2006; 12:103-6. [PMID: 16565611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The potential hepatotoxicity of herbal remedies and/or health foods is usually ignored in daily life. There have been cases showing the toxic hepatitis and renal failure associated with the ingestion of raw carp bile. We experienced a case of toxic hepatitis without any evidence of renal failure that was associated with carp juice ingestion. The clinical manifestations were characterized by nausea and vomiting after the ingestion of carp juice for 3 months. The diagnosis of toxic hepatitis was made on the basis of the patient's history, laboratory data, RUCAM (Russel Uclaf Causality Assessment) and the results of ultrasonography guided liver biopsy. The patient showed rapid improvement after instituting supportive therapy.
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Affiliation(s)
- Hye Suk Son
- Department of Internal Medicine, Daejeon St. Mary's Hospital Medical College of the Catholic University of Korea
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Ahn BM. [Acute toxic hepatitis: RUCAM application to drug-induced liver injury and its limitations]. Korean J Hepatol 2006; 12:1-4. [PMID: 16565601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Affiliation(s)
- Byung Min Ahn
- Department of Internal Medicine, Laboratory of Disease Specific Dietary Supplements, Bupyeong Serim Hospital, Incheon, Korea
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12
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Kim HK, Oh HJ, Nam SW, Choi JY, Cho SH, Yoon SK, Han JY, Yang JM, Han NI, Ahn BM, Choi SW, Kim JK, Lee YS, Chung KW, Sun HS. [Clinical and biochemical parameters of nutrition to predict hepatic encephalopathy in cirrhotic patients]. Korean J Gastroenterol 2006; 47:44-51. [PMID: 16434868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND/AIMS Protein-calorie malnutrition is a common complication in cirrhosis. Protein restriction for the treatment of hepatic encephalopathy (HE) may cause disease progression and poor prognosis. Therefore, we evaluated important clinical parameters for nutritional state in cirrhotic patients with or without HE to predict the development of HE. METHODS Twenty-two cirrhotic patients were divided into two groups; group A-13 patients without HE and group B-9 patients with HE. Clinical and biochemical parameters, serum proteins {serum albumin, insulin-like growth factor-1 (IGF-1), transferrin, leptin, etc}, immunologic parameters and anthropometry were measured. RESULTS Child-Pugh score and Model for End-stage Liver Disease (MELD) scale were higher in group B (p<0.01). After correction of various factors affecting nutritional assessment, especially of Child-Pugh score and MELD scale, leptin was higher in group B (p<0.05). There was no difference in anthropometric measurements. Transferrin correlated inversely with MELD scale in group A (p<0.01). IGF-1 correlated inversely with total lymphocyte count in group B (p<0.05). Leptin correlated with Child-Pugh scores, total lymphocyte count and mid-arm muscle circumference in group A (p<0.05, p<0.05 and p<0.05, respectively), and correlated inversely with CD8 in group B (p<0.05). CONCLUSIONS Leptin level is higher in patients with HE, and further studies for parameters of nutrition to predict HE in many cirrhotic patients will be needed.
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Affiliation(s)
- Hyung Keun Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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13
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Affiliation(s)
- Byung Min Ahn
- Department of Internal Medicine/Laboratory of Disease Specific Diet Supplements, Boopyeong Serim Hospital, Korea.
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14
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Ahn BM, Jung YR, Lee KB, Sohn SK, Kim JG, Baek JH, Cho YY, Chae YS, Jeon SB, Moon JH, Kim SN, Lee SJ, Suh JS, Lee KS. Impact of Day +11 Methotrexate on the Incidence of Graft-versus-host Disease after HLA-identical Allogeneic Peripheral Blood Stem Cell Transplantation. Korean J Hematol 2006. [DOI: 10.5045/kjh.2006.41.2.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Byung Min Ahn
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Yee Ryong Jung
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Kyu Bo Lee
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Sang Kyun Sohn
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Jong Gwang Kim
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Jin Ho Baek
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Yoon Young Cho
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Yee Soo Chae
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Seok Bong Jeon
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Joon Ho Moon
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Shi Nae Kim
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Soo Jung Lee
- Department of Oncology/Hematology, Kyungpook National University College of Medicine, Daegu, Korea
| | - Jang Soo Suh
- Stem Cell Transplantation Unit, Kyungpook National University Hospital, Daegu, Korea
| | - Kun Soo Lee
- Stem Cell Transplantation Unit, Kyungpook National University Hospital, Daegu, Korea
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Nam SW, Baek JT, Kang SB, Lee DS, Kim JI, Cho SH, Park SH, Han JY, Ahn BM, Kim JK, Chung KW. A case of the hepatocellular carcinoma during the pregnancy and metastasis to the left atrium. Korean J Hepatol 2005; 11:381-5. [PMID: 16380667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
A 28-year-old female with a pregnant state of 29th gestational week was admitted because of nausea and vomiting. MRI showed a huge hepatocellular carcinoma. At the 36th gestational week, a normal delivery was done. Surgery of hepatocellular carcinoma was done at 20 days after delivery. After 22 months from the operation, pulmonary metastasis was found and resection of lung mass was done. About 3 years after resection, a low attenuating nodule was detected in the left atrial chamber of heart. We report a case of hepatocellular carcinoma with metastatic lesions to lung and heart in a pregnant woman.
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Affiliation(s)
- Soon Woo Nam
- Department of Internal Medicine, Medical College of the Catholic University of Korea
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Nam SW, Baek JT, Lee DS, Kang SB, Ahn BM, Chung KW. A case of acute cholestatic hepatitis associated with the seeds of Psoralea corylifolia (Boh-Gol-Zhee). Clin Toxicol (Phila) 2005; 43:589-91. [PMID: 16255343 DOI: 10.1081/clt-200068863] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The potential hepatotoxicity of herbal remedies is usually ignored in daily life. One such compound, Boh-Gol-Zhee (in Chinese, Bu Ku Zi), appeared to be associated with the occurrence of acute cholestatic hepatic injury in the following case. Some alternative medicine therapists claim that Psoralea corylifolia is effective for the treatment of osteoporosis. We observed a case of acute cholestatic hepatitis associated with the use of the seeds of Psoralea corylifolia in amounts over 10 times the usual dose in a postmenopausal woman. Liver biopsy showed zone three necroses, degenerating cells, cholestasis, and infiltrations with inflammatory cells. This case stresses the need to warn of the potential hepatotoxicity of the seed of Psoralea corylifolia, especially in a large dose.
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Affiliation(s)
- Soon Woo Nam
- Department of Internal Medicine, Medical College of the Catholic University of Korea, Seoul, Korea
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17
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Bae SH, Yoon SK, Choi JY, Jang JW, Cho SH, Yang JM, Han NI, Ahn BM, Chung KW, Sun HS. Timing of lamivudine administration according to Child class in patients with decompensated cirrhosis. J Gastroenterol Hepatol 2005; 20:1527-32. [PMID: 16174069 DOI: 10.1111/j.1440-1746.2005.03886.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Few clinical trials have investigated the use of lamivudine (LAM) in patients with decompensated cirrhosis related to chronic hepatitis B. The aim of the present study was to evaluate the efficacy of extended LAM treatment and to determine the timing of LAM administration in patients with decompensated cirrhosis. METHODS A total of 17 patients were treated with LAM 100 mg/day. The mean duration of follow up was 28 +/- 8.4 months (range: 14-42 months). All patients were evaluated for evidence of clinical, biochemical and serologic replication of hepatitis B virus (HBV) infection. There were 12 patients with Child class B and five with Child class C. RESULTS Ten of 17 patients (58.2%) responded to LAM treatment. Of the breakthrough patients, six (86%) had YMDD motif variants. Clinical improvement was observed in nine out of 10 responders (90%), six of the seven breakthrough patients (86%) and five of six patients with YMDD variant DNA. Mean time to achieve a 2-point reduction in Child-Pugh-Turcotte score was 14 months in patients with Child class C, compared with 5.9 months in those with Child class B (P < 0.001). Mean time required to gain a 0.5 g/dL increment in albumin was 14 months in Child class C and 5.8 months in Child class B. Hepatitis B e antigen (HBeAg) seroconversion was achieved in five of 13 HBeAg-positive patients at the last follow up and during the follow-up period. CONCLUSION Long-term administration of LAM for patients with decompensated cirrhosis is effective. Earlier LAM administration in Child class B patients led to improved clinical outcomes.
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Affiliation(s)
- Si Hyun Bae
- Department of Internal Medicine, Kangnam St. Mary's Hospital, Seoul, Korea
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18
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Sung WJ, Kim DH, Sohn SK, Kim JG, Baek JH, Jeon SB, Moon JH, Ahn BM, Lee KB. Phase II Trial of Amsacrine Plus Intermediate-dose Ara-C (IDAC) with or without Etoposide as Salvage Therapy for Refractory or Relapsed Acute Leukemia. Jpn J Clin Oncol 2005; 35:612-6. [PMID: 16172175 DOI: 10.1093/jjco/hyi149] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE The current trial attempted to evaluate the efficacy and toxicity of a salvage therapy consisting of amsacrine plus intermediate-dose Ara-C (IDAC) with or without etoposide for acute leukemia patients in refractory or relapsed states. METHODS A total of 51 patients with refractory or relapsed acute leukemia were included in the current trial. Twenty-nine patients with acute myeloid leukemia (AML) received a salvage therapy of amsacrine plus IDAC and etoposide, while 22 patients with acute lymphoblastic leukemia (ALL) received amsacrine plus IDAC. RESULTS The overall complete remission rate was 55% (45% for AML, 68% for ALL) and the median duration of overall survival was 144 days (95% confidence interval = 101-186 days). Grade 3, 4 infectious toxicities were observed in 43 patients (87%), while treatment-related toxicity, excluding infectious causes, included heart failure from myocarditis (n = 1) and central nervous system toxicity (n = 1). CONCLUSION A salvage therapy consisting of amsacrine plus IDAC with or without etoposide appears to be safe and an effective bridge therapy into a stem cell transplantation programme for patients with refractory or relapsed acute leukemia.
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Affiliation(s)
- Woo Jin Sung
- Department of Hematology/Oncology, Kyungpook National University Hospital, Jung-gu, Daegu 700-721, Korea
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19
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Choi JY, Bae SH, Yoon SK, Cho SH, Yang JM, Han JY, Ahn BM, Chung KW, Sun HS, Kim DG. Preconditioning by extracorporeal liver support (MARS) of patients with cirrhosis and severe liver failure evaluated for living donor liver transplantation -- a pilot study. Liver Int 2005; 25:740-5. [PMID: 15998424 DOI: 10.1111/j.1478-3231.2005.01074.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
PURPOSE The aim of this prospective study was to evaluate the effectiveness of preconditioning molecular adsorbent recirculating system (MARS) treatment on patients with acute-on-chronic liver failure (AoCLF), who were awaiting living donor liver transplantation (LDLT). PATIENTS AND METHODS Between January and December 2001, 10 consecutive AoCLF patients (with progressive hyperbilirubinemia (>20 mg/dl) and hepatic encephalopathy grade > or =2) were studied. MARS was used in eight of these patients who were evaluated for LDLT during 2001. Three AoCLF patients who received LDLT before clinical use of MARS were used as historical controls. RESULTS Because of a shortage of donors, only five out of 10 patients considered for LDLT could receive transplants. Three patients were treated with MARS for 8 h the day before receiving LDLT, and all three survived. The remaining two patients who received transplants, and who were not pretreated with MARS, died from sepsis and multi-organ failure within 2 weeks. Four of the patients who did not receive transplants because of donor shortage died despite 1 or 3 MARS treatments, however bilirubin levels and grade of encephalopathy were significantly reduced in these patients. CONCLUSIONS Results of this small pilot study suggest that MARS, by reducing the severity of jaundice and encephalopathy, might be effective as a bridging option in AoCLF patients awaiting LDLT.
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Affiliation(s)
- Jong Young Choi
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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20
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Lee DS, Kang SB, Baek JT, Nam SW, Lee KM, Ahn BM, Lee EH, Han SW, Chung IS. [Immunohistochemical expression of bcl-2, bcl-xL, bax, p53 proteins in gastric adenoma and adenocarcinoma]. Korean J Gastroenterol 2005; 45:394-400. [PMID: 15973073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
BACKGROUND/AIMS The aim of this study was to investigate the immunohistochemical expression of bcl-2, bcl-xL, bax, and p53 proteins according to the pathological parameters such as grade of dysplasia, histological type, depth of invasion, lymph node metastasis, and TNM stage in the gastric adenoma and gastric adenocarcinoma. METHODS Immunohistochemical staining using monoclonal bcl-2, bcl-xL, bax, p53 antibodies were performed on paraffin embedded specimens from forty-one gastric adenomas and 100 gastric adenocarcinomas. RESULTS The expression rate of bcl-2 was higher in adenomas (34.2%), especially in high grade dysplasia (52.4%), than adenocarcinomas (2.0%). The expression rate of bcl-xL was higher in adenocarcinomas (55.0%) than adenomas (22%). The expression rate of the bax was higher in adenocarcinomas (58.0%) than adenomas (14.6%). In the adenocarcinoma, the bax expression was significantly related with the depth of invasion, lymph node metastasis, and TNM stage. The expression rate of p53 was higher in adenocarcinomas (64.0%) than adenomas (14.6%). CONCLUSIONS Bcl-2 protein would be related with the development of gastric adenoma, especially with high grade dysplasia. Bcl-xL and p53 proteins would be involved in the development of relatively early stage of gastric adenocarcinoma but not in tumor progression. Bax protein would be involved in the development of gastric adenocarcinoma and related with depth of invasion, lymph node metastasis, and TNM stage.
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Affiliation(s)
- Dong Soo Lee
- Department of Internal Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea.
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21
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Kwack DH, Kim DH, Kim SN, Ahn BM, Moon JH, Chae YS, Baek JH, Kim JG, Sohn SK, Lee NY, Suh JS, Lee KB. Variable Number of Tandem Repeats (VNTR) Disparity between Donor and Recipient has a Potential to Predict the Outcomes of HLA-identical Allogeneic Stem Cell Transplantation. Korean J Hematol 2005. [DOI: 10.5045/kjh.2005.40.4.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Dong Hoon Kwack
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - Dong Hwan Kim
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
- Stem Cell Transplantation Center, Kyungpook National University Hospital, Daegu, Korea
| | - Shi Nae Kim
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - Byung Min Ahn
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - Joon Ho Moon
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - Yee Soo Chae
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - Jin Ho Baek
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - Jong Gwang Kim
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
- Stem Cell Transplantation Center, Kyungpook National University Hospital, Daegu, Korea
| | - Sang Kyun Sohn
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
- Stem Cell Transplantation Center, Kyungpook National University Hospital, Daegu, Korea
| | - Nan Young Lee
- Stem Cell Transplantation Center, Kyungpook National University Hospital, Daegu, Korea
| | - Jang Soo Suh
- Stem Cell Transplantation Center, Kyungpook National University Hospital, Daegu, Korea
| | - Kyu Bo Lee
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
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22
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Jang JW, Choi JY, Bae SH, Kim CW, Yoon SK, Cho SH, Yang JM, Ahn BM, Lee CD, Lee YS, Chung KW, Sun HS. Transarterial chemo-lipiodolization can reactivate hepatitis B virus replication in patients with hepatocellular carcinoma. J Hepatol 2004; 41:427-35. [PMID: 15336446 DOI: 10.1016/j.jhep.2004.05.014] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2003] [Revised: 04/06/2004] [Accepted: 05/04/2004] [Indexed: 12/15/2022]
Abstract
BACKGROUND/AIMS Reactivation of hepatitis B virus (HBV) replication is a well-known complication in cancer patients receiving chemotherapy. The aims of this study were to determine the incidence of HBV reactivation in hepatocellular carcinoma (HCC) patients undergoing transarterial chemo-lipiodolization, and to clarify factors contributing to HBV reactivation. METHODS From April 2001 to September 2002, 146 HBsAg positive patients newly diagnosed as HCC were enrolled in the study. Among these, 83 patients underwent transarterial chemo-lipiodolization using epirubicin and/or cisplatin, and 63 received other treatments. RESULTS In total, HBV reactivation occurred in 30 (20.5%) patients (28 with chemo-lipiodolization and 2 with other treatments), and of the 30 patients, 19 (13.0%) (18 with chemo-lipiodolization and 1 with other treatments) developed hepatitis. Chemo-lipiodolization was significantly correlated with a higher incidence of hepatitis attributed to HBV reactivation than other treatments (21.7% vs. 1.6%, P<0.001), irrespective of HBeAg or HBV DNA. Among 83 patients undergoing chemo-lipiodolization, HBV reactivation occurred in 28 (33.7%) patients, and HBeAg seropositivity was the only independent predictor of HBV reactivation (P=0.013). Three (10.7%) of them died of hepatic decompensation resulting from HBV reactivation. CONCLUSIONS Transarterial chemo-lipiodolization can reactivate HBV, and HBeAg-positive HCC patients receiving chemo-lipiodolization should be closely monitored for HBV reactivation.
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Affiliation(s)
- Jeong Won Jang
- Division of Hepatology, Department of Internal Medicine, College of Medicine, WHO collaborating Center on Viral Hepatitis, Catholic University of Korea, #505 Banpodong, Seocho-ku, 137-040 Seoul, South Korea
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23
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Song EY, Kim KA, Kim YD, Lee EY, Lee HS, Kim HJ, Ahn BM, Choe YK, Kim CH, Chung TW. Elevation of serum asialo-alpha(1) acid glycoprotein concentration in patients with hepatic cirrhosis and hepatocellular carcinoma as measured by antibody-lectin sandwich assay. Hepatol Res 2003; 26:311-317. [PMID: 12963431 DOI: 10.1016/s1386-6346(03)00156-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Serum asialoglycoproteins (desialylated glycoproteins) concentration was reported to be elevated in patients with hepatic disease as compared with that of normal subjects. In this study, we measured serum asialo-alpha(1) acid glycoprotein (AsAGP) level by a solid-phase sandwich assay in which monoclonal antibody (mAb) to alpha(1)-acid glycoprotein and galactose-binding lectin, ricinus communis (RCA), have been employed as capture protein and probe protein, respectively. The mAb-RCA sandwich assay was sensitive (0.02 μg/ml) and specific for AsAGP. We have determined AsAGP concentration of 869 serum specimens and analyzed the results using l.38 and 2.24 μg/ml (AsAGP) as cut-off values, respectively. AsAGP level was 0.80+/-0.29 μg/ml (mean+/-S.D.) with 97 normal serum specimens and elevated primarily in patients with liver cirrhosis (LC) or hepatocellular carcinoma (HCC). Using 1.38 μg/ml as a cutoff, 4/97 normal subjects, 11/39 acute hepatitis and 26/159 non-hepatic disease exhibited a slight elevation, whereas, AsAGP level was significantly elevated in 182/230 LC and 63/72 HCC. Meanwhile, a cutoff of 2.24 μg/ml allowed significant differentiation of LC or HCC from chronic hepatitis. Serum AsAGP level appeared to increase progressively with increasing severity of liver disease in cirrhotic patients. Thus, serum AsAGP concentration, as measured by the new mAb-RCA sandwich assay, may be a useful differential marker as a diagnostic aid for LC or HCC.
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Affiliation(s)
- Eun Young Song
- Laboratory of Cell Biology, Korea Research Institute of Bioscience and Biotechnology, P.O. Box 115, Yusong, 305-600, Daejeon, South Korea
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Nam SW, Kim JI, Park SH, Han NI, Han JY, Ahn BM, Kim JK, Choi SW, Chung KW, Sun HS, Yang DW, Ahn KJ, Lee JM. [A study for clinical correlation of neuropsychological test and brain magnetic resonance spectroscopy in patients with minimal hepatic encephalopathy]. Korean J Gastroenterol 2003; 42:50-6. [PMID: 14532731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
BACKGROUND/AIMS The aim of the study was to correlate neuropsychological test results with regional cerebral biochemistry determined by magnetic resonance spectroscopy (MRS) in patients with minimal hepatic encephalopathy (MHE). METHODS The patients with liver disease were divided into 4 groups; group 1 chronic hepatitis; group 2, liver cirrhosis (LC) without a history of HE; group 3, LC with a history of HE of no manifestation, and group 4, LC with overt HE. All patients were examined using neuropsychological tests and brain MRS. RESULTS Trail making, Digit span, Digit symbol, and Peg board test in groups 2 and 3 were significantly different compared with control. These neuropsychological tests were regarded more available test for diagnosis of MHE. In the LC patients, compared with control, MRS results showed a typical pattern with decrease of myoinositol/Cr (0.24+/-0.24 vs. 0.68+/-0.10, p<0.05) and increased glutamine-glutamate/Cr (2.97+/-0.80 vs. 1.94+/-0.47, p<0.05). The difference of myoinositol/Cr and glutamine-glutamate/Cr between patients with MHE and control was statistically significant (0.16+/-0.15 vs. 0.68+/-0.10, 3.11+/-0.72 vs. 1.94+/-0.47, p<0.05). CONCLUSIONS Neuropsychological tests and MRS maybe useful for diagnosing MHE.
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Affiliation(s)
- Soon Woo Nam
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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25
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Lee KM, Lee DS, Yang JM, Ahn BM, Lee EH, Yoo JY, Kim YJ, Chung IS, Sun HS, Park DH. [Effect of Helicobacter pylori on gastric epithelial cell kinetics and expression of apoptosis-related proteins in gastric carcinogenesis]. Korean J Gastroenterol 2003; 42:12-9. [PMID: 14532726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
BACKGROUND/AIMS We investigated apoptosis, cell proliferation and the expression of apoptosis-related proteins in the gastric epithelial cells of Helicobacter pylori (H. pylori)-negative and positive patients. METHODS TUNEL staining, immunohistochemical staining for Ki-67, p53, Bcl-2, Bcl-X(L) and Bax were performed on paraffin-embedded specimens obtained from 11 H. pylori-negative controls, 20 H. pylori-positive chronic gastritis, 10 chronic gastritis with intestinal metaplasia (IM), 11 adenoma, and 7 adenocarcinoma patients. Apoptosis and proliferation were expressed as apoptosis index (AI) and proliferation index (PI). RESULTS In H. pylori-positive groups, apoptosis and proliferation were increased compared with controls. However, an AI/PI ratio was highest in chronic gastritis cases and then gradually reduced according to the progress from IM to cancer. p53 was expressed in 28.6% of adenocarcinoma cases. Expression of Bax was significantly increased in chronic gastritis and IM patients compared with controls. CONCLUSIONS H. pylori infection induces marked increase in apoptosis and proliferation of gastric mucosa. In the premalignant lesions, the balance between apoptosis and proliferation is altered, and this imbalance may play a key role in the gastric carcinogenesis.
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Affiliation(s)
- Kang Moon Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea
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26
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Park TW, Park YM, Bae SH, Jang JW, Nam SW, Choi JY, Yoon SK, Cho SH, Yang JM, Han NI, Ahn BM, Lee YS, Lee CD, Park DH. [Efficacy and safety of long-term lamivudine therapy in the patients with decompensated liver cirrhosis secondary to hepatitis B]. Taehan Kan Hakhoe Chi 2002; 8:428-35. [PMID: 12506247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
BACKGROUND/AIMS Lamivudine use in patients with decompensated cirrhosis B has been reported to improve the hepatic function and often delay the need for liver transplantation. In the present study, we evaluated the efficacy and safety of long-term lamivudine therapy in patients with decompensated cirrhosis by comparative study using a matched, untreated cohort. METHODS 41 patients with decompensated cirrhosis B were included for this study (31 male and 10 female; mean age, 50 years; mean observation period, 18 months). They were divided into two groups: a lamivudine treatment group and an untreated control group. 21 patients in the treatment group were treated with lamivudine 75 or 150 mg daily for at least 12 months. Biochemical and serologic markers were evaluated at two to three-month intervals for all patients. Clinical improvement was defined by a decrease in the Child-Pugh score of at least 2 points. RESULTS During the observation period, 62% (13/21) was responders, 33% (7/21) was breakthrough, and 5% (1/21) was non-responder in the treated group. The mean Child-Pugh score was significantly improved from 8.6 to 6.0 in the treatment group, but aggravated from 8.7 to 10.0 in the control group during the follow-up. The HBeAg seroconversion rate was 31% in the treatment group (5/16) and none in the control group (0/14). Clinical improvement was observed in fifteen of 21 in the treatment group (71%) and only one of 20 in the control group (5%). According to the treatment responses, clinical improvement was observed in ten of 13 responders (77%), four of 7 breakthrough (57%), and one non-responder. CONCLUSIONS The long-term administration of lamivudine for patients with decompensated cirrhosis B is effective and safe, although breakthrough and non-response occurred in some patients.
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Affiliation(s)
- Tae Wook Park
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul
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Abstract
Pancreatic endometrial cyst is an extremely rare instance of ectopic endometriosis that was first described by Marchevsky in 1984. A 21-yr-old woman with a history of epigastric pain and weight loss was found to have a cystic lesion in the pancreas on CT-scan. Under the tentative diagnosis of a pancreatic cystic neoplasm, partial pancreatectomy was performed. Histopathological examination of the specimen revealed cystic endometriosis. The clinicopathological features of the lesion are discussed and literature concerning this extremely rare lesion is reviewed.
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Affiliation(s)
- Dong Soo Lee
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jong Tae Baek
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Byung Min Ahn
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | | | - Sok Won Han
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - In Sik Chung
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hee Sik Sun
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Doo Ho Park
- Departments of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Bae SH, Jung ES, Park YM, Jang JW, Choi JY, Cho SH, Yoon SK, Ahn BM, Cha SB, Chung KW, Sun HS, Park DH, Kim BK, Kim DG. [Expression patterns of E-cadherin and beta-catenin according to clinicopathological characteristics of hepatocellular carcinoma]. Taehan Kan Hakhoe Chi 2002; 8:297-303. [PMID: 12499787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
BACKGROUND/AIMS E-cadherin is involved in intercellular binding and cellular polarity formation. beta-catenin plays a fundamental role in regulation of the E-cadherin cell adhesion complex. The abnormalities of the components of the complex may disrupt this adhesive function. We investigated the expression patterns of E-cadherin and beta-catenin to determine the clinical significance of these proteins in hepatocellular carcinoma. MATERIALS/METHODS Thirty-six hepaticellular carcinoma tissues and adjacent non-tumor specimens were analyzed. Subcellular distribution of E-cadherin and beta-catenin was examined by immunohistochemistry staining. We evaluated the patterns of the expression, and investigated the relationship with the cause of HCC; level of AFP; TNM stage; tumor size; growth types; metastasis; differentiation grade of HCC; and presence of portal vein thrombosis. RESULTS Immunohistochemistry showed that all non-tumor tissues had membranous type staining of E-cadherin. All non-tumor tissues showed cytoplasmic type staining of beta-catenin, but no beta-catenin accumulation in nuclei was found. 58% (21/36) of HCC showed positive expression of E-cadherin in cytoplasmic membrane. The cytoplasmic expression of beta-catenin in HCC was 83% (30/36); nuclear expression in 14% (5/36); and no staining in 3% (1/36). Nuclear beta-catenin expression was observed in none (0/4) of the well-differentiated HCC; 17%(3/9) of moderate-differentiated HCC; and 17%(2/6) of poorly-differentiated HCC. There were no relationships between E-cadherin and beta-catenin expression with other clinicopathologic factors. CONCLUSIONS Loss of cytoplasmic staining of E-cadherin and nuclear accumulation of beta-catenin were observed in HCC. Nuclear accumulation of beta-catenin was not found in well differentiated HCC but was found in poorly differentiated HCC.
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Affiliation(s)
- Si Hyun Bae
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Ahn BM. Rhus-chicken. Taehan Kan Hakhoe Chi 2002; 8:245-7. [PMID: 12499812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Affiliation(s)
- Byung Min Ahn
- Daejeon St. Mary's Hospital, Department of Internal Medicine. College of Medicine, The Catholic University of Korea, Daejeon, Korea
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Han NI, Lee YS, Choi H, Choi JY, Yun SK, Cho SH, Han JY, Yang JM, Ahn BM, Choi SW, Lee CD, Cha SB, Sun HS, Park DH. PCNA expression and electron microscopic study of acinus-forming hepatocytes in chronic hepatitis B. Korean J Intern Med 2002; 17:100-6. [PMID: 12164086 PMCID: PMC4531668 DOI: 10.3904/kjim.2002.17.2.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND One of the major morphologic characteristics of hepatitis B is a hepatocellular regeneration which is induced by massive hepatocyte necrosis and associated with proliferative activity of hepatocytes. The purpose of this study is to document the proliferative activity of hepatocytes in various types of hepatitis B by immunohistochemical staining for proliferative cell nuclear antigen-labelling index (PCNA-LI) and electron microscopy. METHODS We studied 83 patients with hepatitis B: 11 cases of acute viral hepatitis, 24 cases of mild chronic hepatitis, 34 cases of severe chronic hepatitis with early cirrhosis and 14 cases of severe chronic hepatitis. The PCNA was tested by immunohistochemical staining using anti-PCNA antibody. Furthermore we evaluated the ultrastructure of acinus-forming hepatocytes (AFH) by electron microscopy. RESULTS The expression rate and labelling index of PCNA were 27.3% and 5.3 +/- 0.9% in acute viral hepatitis, 62.5% and 22.9 +/- 31.7% in mild chronic hepatitis, and then 47.1% and 14.1 +/- 24.2% in severe chronic hepatitis with early cirrhosis, respectively (Figure 1). By contrast, no detectable PCNA expression was noted in AFH. Electron microscopic findings showed that hepatocytes forming a rosette underwent marked degenerative changes with sinusoidal capillarization and increased fine strands of collagen fiber in portal area. CONCLUSION The proliferative activity of hepatitis B was significantly decreased in severe chronic hepatitis containing AFH. This result suggested that differences in proliferative activity was associated with hepatic cell necrosis and AFH.
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Affiliation(s)
- Nam Ik Han
- Department of Internal Medicine, Holy Family Hospital, Catholic University of Korea College of Medicine, 2 Sosa-dong, Wonmi-gu, Pucheon-City 420-717, Kyunggi-do, Korea
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Ahn BM, Yoon SK, Park SH, Han JY, Han NI, Kim JK, Lee YS, Choi SW, Lee CD, Cha SB, Chung KW, Sun HS. [Electron microscopic mesenchymal response in chronic viral hepatitis]. Taehan Kan Hakhoe Chi 2002; 8:167-72. [PMID: 12499802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
BACKGROUND/AIMS This study was designed to clarify the fine structures of the hepatocytes and mesenchymal tissues in chronic hepatitis according to severity. METHOD For the purpose of elucidating the ultrastructural characteristics of mesenchymal tissues, liver biopsy specimens were studied by light and electron microscopy in 20 patients with chronic hepatitis. RESULTS 1) Hepatocytes in mesenchymal tissues were thought to be in the stage of regenerated or degenerated process. 2) Regenerating nodules were surrounded by a basement membrane-like materials in the space of Disse. 3) In the widened Disse space the deposition of collagen fiber bundles and increased numbers of hepatic stellate cells in necrotic area were observed. 4) In necrotic areas, hepatic mesenchymal cell response including an increase of collagen fibers and fibroblast, angiogenesis, and a proliferation of bile ductules were also observed. CONCLUSIONS These observations suggest that the fibrosis in severe chronic hepatitis was accompanied by the mesenchymal response including the proliferation of hepatic stellate cells, fibroblasts, capillarization of Disse space, and mesenchymal proliferation. Finally, this fibrosis observed electron microscopically may be a cause of functional hepatic failure.
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Affiliation(s)
- Byung Min Ahn
- Department of Internal Medicine, Catholic University Medical College, Seoul, Korea.
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Abstract
BACKGROUND Hepatic stellate cell (HSC) has been suggested to play a role in fibrogenesis in alcoholic liver disease. We evaluate the correlation with fibrogenesis and ultrastructure of hepatic stellate cells in alcoholic fatty liver. METHODS We studied 6 patients with alcoholic fatty liver and 5 non-alcoholic fatty liver. The numbers of fat droplets in hepatic stellate cell was determined by electron microscopy. We also studied the grading of deposition of collagen fibers in the space of Disse. We were to evaluate the structure of hepatic stellate cells in the space of Disse by light and electron microscopy. RESULTS Wider distribution of fat droplets in hepatic stellate cells in alcoholic fatty liver than in normal liver. The hypertrophied endoplasmic reticulum in hepatic stellate cells is a prominent findings in alcoholic fatty liver. We observed basement membrane-like materials in patients with alcoholic fatty liver with hepatic fibrosis. CONCLUSION The results demonstrate that, in patients with alcoholic fatty liver by alcoholic liver injury, the hepatic stellate cells may play an important role in the fibrogenesis of perisinusoidal spaces in the liver.
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Affiliation(s)
- N I Han
- Department of Internal Medicine, Holy Family Hospital, College of Medicine, Catholic University of Korea, Korea
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Yoon SK, Park YM, Byun BH, Bae SH, Yang JM, Ahn BM, Lee YS, Lee CD, Sun HS, Kim BS. The relationship between virological characteristics of hepatitis C virus (HCV) and reactivity to the regional specific proteins of HCV. Korean J Intern Med 2000; 15:109-16. [PMID: 10992722 PMCID: PMC4531759 DOI: 10.3904/kjim.2000.15.2.109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Although the polyproteins of hepatitis C virus(HCV) are processed and formed in nearly equimolar amounts, individual functional proteins have a discrepancy in their time of appearance following HCV infection and eliciting immune response. This study was conducted to compare the reactivity toward regional specific HCV protein in relation to virological characteristics, including HCV genotype and HCV replication. METHODS Sera from forty-five patients with chronic HCV infection were analyzed through the experiments of the recombinant immunoblot assay(RIBA-2), HCV genotyping and HCV RNA quantitation. RESULTS The frequencies of seropositivity to C22-3, C33C, C100-3 and 5-1-1 proteins were 91.1%, 91.1%, 64.4% and 53.3%, respectively, of all the patients, and thus the antibodies to C22-3 and C33C proteins were found more frequently (p < 0.05). The antibody responses between core or NS3 proteins and NS4 proteins showed more discrepancy in the HCC group than that in the CH group, implying a possibility of oncogenic potential of core or NS3 gene in hepatocarcinogenesis. The detection rate of antibodies to C22-3 and C33C, in accordance with serum HCV RNA levels, was significantly higher in highly viremic patients than that in low viremic patients (p < 0.05). Antibodies to C22-3, C33C, C100-3 and 5-1-1 were also found more frequently in patients with HCV genotype 1b, compared to those with HCV genotype 2a (p < 0.05). CONCLUSION These results suggest that antibody detection of HCV may depend on the virological characteristics of HCV, the levels of HCV replication and HCV genotype and, therefore, HCV RNA detection using RT-PCR technique is essential for confirmatory diagnosis for HCV infection. Furthermore, the HCV core or NS3 Protein may play important role in hepatocarcinogenesis.
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Affiliation(s)
- S K Yoon
- Department of Internal Medicine, College of Medicine, Catholic University of Korea
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Abstract
It has been suggested that genetic changes in cancers are related to genomic instability. To evaluate a possible correlation between growth-regulatory genes and genomic instability in HCC, we investigated microsatellite instability and mutations of TGF-beta type II receptor (TGF-beta RII) and E2F-4 genes in each pair of tumor and surrounding nontumor liver tissues, collected from 19 patients with HCC. By the identification of mutations in six different genetic loci (D1S170, D2S123, D4S395, D13S126, D13S260, and D16S402), one or more alterations in microsatellite markers were identified in 13/19 (68%) hepatocellular carcinoma specimens. When two repeated sequences of TGF-beta RII gene, poly(A)(10) tract in exon 8 and poly(GT)(3) tract in exon 9, were analyzed by polymerase chain reaction-single strand conformational polymorphism, none of the 19 hepatocellular carcinoma specimens showed mutations. When amplicons of poly(AGC)(13) tract of E2F-4 were analyzed by cloning and automated sequencing, 5/19 (36%) hepatocellular carcinomas showed deletion mutation in one or two AGC repeats and such mutations were identified only among cases with microsatellite instability. These results suggest that both microsatellite instability and mutations of E2F-4 occur commonly in hepatocellular carcinoma and play an important role in hepatocarcinogenesis.
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Affiliation(s)
- YM Park
- Department of Internal Medicine, Hepatology Division, Kangnam St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-ku, 137-040, Seoul, South Korea
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Yang JM, Kim SS, Kim JI, Ahn BM, Choi SW, Kim JK, Lee CD, Chung KW, Sun HS, Park DH, Thurman RG. The metabolic effects of estriol in female rat liver. J Korean Med Sci 1999; 14:277-85. [PMID: 10402170 PMCID: PMC3054389 DOI: 10.3346/jkms.1999.14.3.277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The effects of estriol on oxygen uptake, glucose release, lactate and pyruvate production, beta-hydroxybutyrate and acetoacetate production in perfused rat liver as well as, carbon uptake in rat liver and intracellular calcium in isolated Kupffer cells were investigated. Basal oxygen consumption of perfused liver increased significantly in estriol or ethanol-treated rats. But these increased effects were blocked by gadolinium chloride pretreatment. In a metabolic study, pretreatment with estriol resulted in a decrease in glucose production and in glycolysis while an increase in ketogenesis. A more oxidized redox state of the mitochondria was indicated by increased ratios of perfusate [lactate]/[pyruvate] and decreased ratios of perfusate [beta-hydroxybutyrate]/[acetoacetate]. Carbon uptake of Kupffer-cell increased significantly in estriol-treated rats. But these increased uptake were not shown in rats pre-treated by gadolinium chloride blocking phagocytosis. In isolated Kupffer cells from estriol-treated rats, intracellular calcium was more significantly increased after addition of lipopolysaccharide (LPS) than in controls. These findings suggest that the metabolic effects of estriol (two mg per 100 mg body wt) can be summarized to be highly toxic in rat liver, and these findings suggest that oral administration of estrogens may induce hepatic dysfunctions and play a role in the development of liver disease.
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Affiliation(s)
- J M Yang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul.
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Shin WS, Kang MW, Kang JH, Choi MK, Ahn BM, Kim JK, Sun HS, Min KW. Epstein-Barr virus-associated gastric adenocarcinomas among Koreans. Am J Clin Pathol 1996; 105:174-81. [PMID: 8607441 DOI: 10.1093/ajcp/105.2.174] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Epstein-Barr virus (EBV)-associated gastric carcinomas have been reported from various regions of the world. Epstein-Barr virus appears to be pathogenetically related to some gastric carcinomas. To determine the incidence of EBV association with gastric carcinomas among Koreans, the authors have studied EBV genome expression in 89 consecutive patients with gastric carcinomas diagnosed at the Catholic University Hospitals in Seoul, Korea, using in situ hybridization (ISH) for EBV-encoded small RNAs (EBERs), and immunohistochemistry for EBV latent membrane proteins (LMP) and CD21 antigen on paraffin sections. Thirty-seven gastric specimens with benign ulcer disease were used controls. EBV-encoded small RNAs were expressed in tumor cell nuclei in 12 patients (13.5%). None of the controls or benign portions of the cases were positive. In the positive cases, all tumor cell nuclei were uniformly stained and the staining intensity was strong. Immunohistochemistry for LMP was positive in 3 of 12 EBERs positive patients and none of EBERs negative patients. EBV latent membrane proteins was localized only in the lymphoid cells infiltrating the tumor in two patients, and tumor cells as well as infiltrating lymphoid cells in one patient. These results indicate that the rate of EBV association with gastric carcinomas in Koreans is relatively high and comparable to other Far Eastern Asian regions. The expression pattern in EBV-associated gastric carcinomas is similar to those of nasopharyngeal carcinomas in which clonality analysis using specific probes to the tandem repeat region of EBV yielded single episomal bands suggesting that EBV infection in EBV-associated gastric carcinomas are also clonal and pathogenetically related to the neoplasm. However, the mechanism of tumorigenesis remains to be elucidated.
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Affiliation(s)
- W S Shin
- Division of Infectious Diseases, Catholic University Medical College, Seoul, Korea
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Abstract
We report a case of acute herpetic esophagitis in a 33 year old man who was presumed to be immuno-compromised following prolonged steroid and cyclosporin treatment for acute rejection of a transplanted kidney. In Korea, all reported cases of herpetic esophagitis have been diagnosed in immuno-compromised and debilitated patients with a typical endoscopic appearance of ulcerating lesions. However, our patient showed multiple vesicular lesions without ulcer along the entire esophagus. The diagnosis was confirmed by colorimetric detection of herpes virus DNA using in situ hybridization. The endoscopic findings reported herein probably represent the typical early stage of acute herpetic esophagitis.
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Affiliation(s)
- B M Ahn
- Department of Internal Medicine, Pediatrics, Catholic University Medical College, Seoul, Korea
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Cho SH, Yoon JI, Chang JE, Ahn BM, Lee CH, Lee YI. Genomic typing of hepatitis C viruses from Korean patients: implications of genome variation in the E2/NS1 region. Biochem Biophys Res Commun 1993; 196:780-8. [PMID: 8240354 DOI: 10.1006/bbrc.1993.2317] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Comparative nucleotide sequence studies of a 2.4-kb cDNA fragment (nt -49 to 2361) of Korean-type hepatitis C virus (HCV) were carried out. The nt sequences of the Korean HCV isolates have stronger sequence homologies with type II HCV (Japanese HCV-BK) than with types I (HCV-1) or III (HCV-6). In addition, the net sequences of a part of the core region of ten different samples confirmed that prevalent HCV in Korea belongs to type II with the exception of one sample which belongs to type III. The nt sequence of a cDNA fragment of E2/NS1 region of HCV, from six different serum samples, which comprises the hypervariable regions-1 (HVR-1) and -2 (HVR-2), revealed sequence heterogeneity with type II HCV (75.4 to 80.7% nt homology and 75.5 to 79.7% amino acid homology). However, it was relatively well conserved among the Korean isolates, in fact, aa sequences of HVR-2 as well as HVR-1, converged into two groups. Also we found consensus sequences (T.V.G..AGRTT.G..SLE......K) in HVR-1. Thus, we propose that the conserved patterns in HVR-1 and -2 are characteristics of the six different Korean isolates.
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Affiliation(s)
- S H Cho
- Molecular Genetics Laboratory, Genetic Engineering Research Institute, Taejon, Korea
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Ahn BM, Han SW, Moon HS, Song JS, Rho JC, Park SH, Byun HW, Shim SI, Lee JM, Bang CY. Hypersenstivity Pheumonitis. Tuberc Respir Dis (Seoul) 1983. [DOI: 10.4046/trd.1983.30.1.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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