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| 1 | Diagnostic value of PIVKA-Ⅱ and alpha-fetoprotein in hepatitis B virus-associated hepatocellular carcinoma显示文摘AIM: To determine the cutoff values and to compare the diagnostic role of alpha-fetoprotein(AFP) and prothrombin induced by vitamin K absence-Ⅱ(PIVKA-Ⅱ) in chronic hepatitis B(CHB).METHODS: A total of 1255 patients with CHB, including 157 patients with hepatocellular carcinoma(HCC), 879 with non-cirrhotic CHB and 219 with cirrhosis without HCC, were retrospectively enrolled. The areas under the receiver operating characteristic(AUROC) curves of PIVKA-Ⅱ, AFP and their combination were calculated and compared.RESULTS: The optimal cutoff values for PIVKA-Ⅱ and AFP were 40 m AU/m L and 10 ng/m L, respectively, for the differentiation of HCC from nonmalignant CHB. The sensitivity and specificity were 73.9% and 89.7%, respectively, for PIVKA-Ⅱ and 67.5% and 90.3% for AFP, respectively. The AUROC curves of both PIVKA-Ⅱ and AFP were not significantly different(0.854 vs 0.853, P = 0.965) for the differentiation of HCC from nonmalignant CHB, whereas the AUROC of PIVKA-Ⅱ was significantly better than that of AFP in patients with cirrhosis(0.870 vs 0.812, P = 0.042). When PIVKA-Ⅱ and AFP were combined, the diagnostic power improved significantly compared to either AFP or PIVKA-Ⅱ alone for the differentiation of HCC from nonmalignant CHB(P < 0.05), especially when cirrhosis was present(P < 0.05).CONCLUSION: Serum PIVKA-Ⅱ might be a better tumor marker than AFP, and its combination with AFP may enhance the early detection of HCC in patients with CHB. | Seung In Seo Hyoung Su Kim Won Jin Kim Woon Geon Shin Doo Jin Kim Kyung Ho Kim Myoung Kuk Jang Jin Heon Lee Joo Seop Kim Hak Yang Kim Dong Joon Kim Myung Seok Lee Choong Kee Park | 2015 | World Journal of Gastroenterology2015，21，13： | 60 |
| 2 | Effects of dietary intake and genetic factors on hypermethyiation of the hMLH1 gene promoter in gastric cancer显示文摘AIM: Hypermethylation of the promoter of the hMLH1gene, which plays an important role in mismatch repair during DNA replication, occurs in more than 30% of human gastric cancer tissues. The purpose of this study was to investigate the effects of environmental factors, genetic polymorphisms of major metabolic enzymes, and microsatellite instability on hypermethylation of the promoter of the hMLH1 gene in gastric cancer.METHODS: Data were obtained from a hospital-based,case-control study of gastric cancer. One hundred and ten gastric cancer patients and 220 age- and sex-matched control patients completed a structured questionnaire regarding their exposure to environmental risk factors.Hypermethylation of the hMLH1 gene promoter,polymorphisms of the GSTM1, GSTT1, CYP1A1, CYP2E1,ALDH2 and L-myc genes, microsatellite instability and mutations of p53 and Ki-ras genes were investigated.RESULTS: Both smoking and alcohol consumption were associated with a higher risk of gastric cancer with hypermethylation of the hMLH1 gene promoter. High intake of vegetables and low intake of potato were associated with increased likelihood of gastric cancer with hypermethylation of the hMLH1 gene promoter. Genetic polymorphisms of the GSTM1, GSTT1, CYP1A1, CYP2E1,ALDH2, and L-mycgenes were not significantly associated with the risk of gastric cancer either with or without hypermethylation in the promoter of the hMLH1 gene.Hypermethylation of the hMLH1 promoter was significantly associated with microsatellite instability (MSI): 10 of the 14 (71.4%) MSI-positive tumors showed hypermethylation,whereas 28 of 94 (29.8%) the MSI-negative tumors were hypermethylated at the hMLH1 promoter region.Hypermethylation of the hMLH1 gene promoter was significantly inversely correlated with mutation of the p53gene.CONCLUSION: These results suggest that cigarette smoking and alcohol consumption may influence the development of hMLH1-positive gastric cancer. Most dietary factors and polymorphisms of GSTM1, GSTT1,CYP1A1, CYP2E1, ALDH2, and L-myc genes are not independent risk factors for gastric cancer with hypermethylation of the hMLH1 promoter. These data also suggest that there could be two or more different molecular pathways in the development of gastric cancer, perhaps involving tumor suppression mechanisms or DNA mismatch repair. | Young-Jin Song Hyo-Yung Yun Joo-Seung Park Heon Kim | 2005 | World Journal of Gastroenterology2005，11，25： | 19 |
| 3 | Role of oxygen free radicals in patients with acute pancreatitis显示文摘The generation of oxygen free radicals has been implicated in the pathogenesis of experimental pancreatitis.The aim of this study was to determine the role of oxygen free radicals in patients with acute pancreatitis.METHODS: The plasma levels of C-reactive protein (CRP),lipid peroxide (LPO), myeloperoxidase (MPO) and superoxide dismutase (SOD) were measured in 13 patients with acute pancreatitis and 14 healthy volunteers.RESULTS: Among the patients with acute pancreatitis, there were higher plasma levels of LPO and MPO and lower SOD activity in patients with severe pancreatitis than in those with mild pancreatitis. However, there was no significant difference in the serum marker of oxidative stress no matter what the etiology was. The LPO level was especially correlated with the concentration of serum CRP and CT severity index.CONCLUSION: The oxygen free radicals may be closely associated with inflammatory process and the severity of acute pancreatitis. Especially, the concentration of plasma LPO is a meaningful index for determining the severity of the disease. | Byung Kyu Park Jae Bock Chung Jin Heon Lee Jeong Hun Suh Seung Woo Park Si Young Song Hyeyoung Kim Kyung Hwan Kim Jin Kyung Kang | 2003 | World Journal of Gastroenterology2003，9，10： | 18 |
| 4 | Prevalence of clonorchiasis in patients with gastrointestinal disease: A Korean nationwide multicenter survey显示文摘AIM: To investigate prevalence of Clonorchis sinensis in patients with gastrointestinal symptoms, and the relation of the infection to hepatobiliary diseases in 26 hospitals in Korea.METHODS: Consecutive patients who had been admitted to the Division of Gastroenterology with gastrointestinal symptoms were enrolled from March to April 2005. Of those who had been diagnosed with clonorchiasis, epidemiology and correlation between infection and hepatobiliary diseases were surveyed by questionnaire.RESULTS: Of 3080 patients with gastrointestinal diseases, 396 (12.9%) had clonorchiasis and 1140 patients (37.2%) had a history of eating raw freshwater fish. Of those with a history of raw freshwater fish ingestion, 238 (20.9%) patients had clonorchiasis. Cholangiocarcinoma was more prevalent in C. sinensis-infected patients than non-infected patients [34/396 (8.6%) vs 145/2684 (5.4%), P = 0.015]. Cholangiocarcinoma and clonorchiasis showed statistically significant positive cross-relation (P = 0.008). Choledocholithiasis, cholecystolithiasis, cholangitis, hepatocellular carcinoma, and biliary pancreatitis did not correlate with clonorchiasis.CONCLUSION: Infection rate of clonorchiasis was still high in patients with gastrointestinal diseases in Korea, and has not decreased very much during the last two decades. Cholangiocarcinoma was related to clonorchiasis, which suggested an etiological role for the parasite. | Ho Gak Kim Jimin Han Myung-Hwan Kim Kyu Hyun Cho Im Hee Shin Gwang Ha Kim Jae Seon Kim Jin Bong Kim Tae Nyeun Kim Tae Hyeon Kim Tae Hyo Kim Jae Woo Kim Ji Kon Ryu Young-Soo Moon Jong Ho Moon Sung Jae Park Chan Guk Park Sung-Jo Bang Chang Heon Yang Kyo-Sang Yoo Byung Moo Yoo Kyu Taek Lee Dong Ki Lee Byung Seok Lee Sang Soo Lee Seung Ok Lee Woo Jin Lee Chang Min Cho Young-Eun Joo Gab Jin Cheon Young Woo Choi Jae Bok Chung Yong Bum Yoon | 2009 | World Journal of Gastroenterology2009，15，1： | 15 |
| 5 | Is it possible to differentiate gastric GISTs from gastric leiomyomas by EUS?显示文摘AIM: To evaluate the ultrasonog raphy (EUS) features of gastric gastrointestinal stromal tumors (GISTs) as compared with gastric leiomyomas and then to determine the EUS features that could predict malignant GISTs.METHODS: We evaluated the endoscopic EUS features in 53 patients with gastric mesenchymal tumors conf irmed by histopathologic diagnosis. The GISTs were classif ied into benign and malignant groups according to the histological risk classif ication.RESULTS: Immunohistochemical analyses demon-strated 7 leiomyomas and 46 GISTs. Inhomogenicity, hyperechogenic spots, a marginal halo and higher echogenicity as compared with the surrounding muscle layer appeared more frequently in the GISTs than in the leiomyomas (P < 0.05). The presence of at least two of these four features had a sensitivity of 89.1% and a specifi city of 85.7% for predicting GISTs. Except for tumor size and irregularity of the border, most of the EUS features were not helpful for predicting the malignant potential of GISTs. On multivariate analysis, only the maximal diameter of the GISTs was an independent predictor. The optimal size for predicting malignant GISTs was 35 mm. The sensitivity and specificity using this value were 92.3% and 78.8%, respectively.CONCLUSION: EUS may help to differentiate gastric GISTs from gastric leiomyomas. Once GISTs are suspected, surgery should be considered if the size is greater than 3.5 cm. | Gwang Ha Kim Do Youn Park Suk Kim Dae Hwan Kim Dong Heon Kim Cheol Woong Choi Jeong Heo Geun Am Song | 2009 | World Journal of Gastroenterology2009，15，27： | 12 |
| 6 | Self-expandable metallic stents for palliation of patients with malignant gastric outlet obstruction caused by stomach cancer显示文摘AIM: To ascertain clinical outcome and complications of self-expandable metal stents for endoscopic palliation of patients with malignant obstruction of the gastrointestinal (GI) tract. METHODS: A retrospective review was performed throughout August 2000 to June 2005 of 53 patients with gastric outlet obstruction caused by stomach cancer. All patients had symptomatic obstruction including nausea, vomiting, and decreased oral intake. All received self-expandable metallic stents. RESULTS: Stent implantation was successful in all 53 (100%) patients. Relief of obstructive symptoms was achieved in 43 (81.1%) patients. No immediate stent-related complications were noted. Seventeen patients had recurrent obstruction (tumor ingrowth in 14 patients, tumor overgrowth in 1 patient, and partial distal stent migration in 2 patients). The mean survival was 145 d. Median stent patency time was 187 d. CONCLUSION: Endoscopic placement of self-expandable metallic stents is a safe and effective treatment for the palliation of patients with inoperable malignant gastric outlet obstruction caused by stomach cancer. | Tae Oh Kim Dae Hwan Kang Gwang Ha Kim Jeong Heo Geun Am Song Mong Cho Dong Heon Kim Mun Sup Sim | 2007 | World Journal of Gastroenterology2007，13，6： | 11 |
| 7 | Risk factors and therapeutic results of early local recurrence after transcatheter arterial chemoembolization显示文摘AIM:To identify factors affecting early local recurrence after transcatheter arterial chemoembolization(TACE)and investigate treatments and outcomes for local recurrence.METHODS:Early local recurrence and no early local recurrence groups drawn from 134 patients who were initially diagnosed with hepatocellular carcinoma(HCC)and showed a complete response(CR)to TACE treatment between January 1,2006,and January 31,2012,were analyzed by univariate and multivariate analyses.Additionally,the subsequent treatment for patients with recurrence was analyzed,and in cases in which TACE had been performed,the cumulative recurrence rates were calculated using the Kaplan-Meier method and compared with those of the primary lesion.RESULTS:The 1-,2-,and 3-year survival rates were92.3%,60.2%,and 39.8%,respectively,in the earlylocal recurrence group,which were significantly lower than those in both the late local and no local recurrence groups(P<0.001).On multivariate analyses,non-compact lipiodol uptake,large tumor size,and an alpha-fetoprotein>20 ng/mL after achieving a CR were significant predictors.When TACE was performed for early and late locally recurrent lesions,a CR was observed in 15 patients(41.7%)and 11 patients(78.6%),and the cumulative recurrence rates at 6,12,and 24mo were 17.9%,43.3%,and 71.2%,respectively,which did not differ significantly from those after the first CR of 20.5%,44.0%,and 58.6%,respectively(P=0.639).CONCLUSION:Closer monitoring and active treatments must be provided to patients with risk factors for early local recurrence of HCC. | Woo Sun Rou Byung Seok Lee Hee Seok Moon Eaum Seok Lee Seok Hyun Kim Heon Young Lee | 2014 | World Journal of Gastroenterology2014，20，22： | 7 |
| 8 | ITGA1 polymorphisms and haplotypes are associated with gastric cancer risk in a Korean population显示文摘AIM:To evaluate the association between the geneticpolymorphisms and haplotypes of the ITGA1 gene and the risk of gastric cancer.METHODS:The study subjects were 477 age-and sex-matched case-control pairs.Genotyping was performed for 15 single nucleotide polymorphisms(SNPs)in ITGA1.The associations between gastric cancer and these SNPs and haplotypes were analyzed with multivariate conditional logistic regression models.Multiple testing corrections were carried out following methodology for controlling the false discovery rate.Gene-based association tests were performed using the versatile gene-based association study(VEGAS)method.RESULTS:In the codominant model,the ORs for SNPs rs2432143(1.517;95%CI:1.144-2.011)and rs2447867(1.258;95%CI:1.051-1.505)were statistically significant.In the dominant model,polymorphisms of rs1862610 and rs2447867 were found to be significant risk factors,with ORs of 1.337(95%CI:1.029-1.737)and 1.412(95%CI:1.061-1.881),respectively.In the recessive model,only the rs2432143 polymorphism was significant(OR=1.559,95%CI:1.150-2.114).The C-C type of ITGA1 haplotype block 2 was a significant protective factor against gastric cancer in the both codominant model(OR=0.602,95%CI:0.212-0.709,P=0.021)and the dominant model(OR=0.653,95%CI:0.483-0.884).The ITGA1 gene showed a significant gene-based association with gastric cancer in the VEGAS test.In the dominant model,the A-T type of ITGA1 haplotype block 2 was a significant risk factor(OR=1.341,95%CI:1.034-1.741).SNP rs2447867 might be related to the severity of gastric epithelial injury due to inflammation and,thus,to the risk of developing gastric cancer.CONCLUSION:ITGA1 gene SNPs rs1862610,rs2432143,and rs2447867 and the ITGA1 haplotype block that includes SNPs rs1862610 and rs2432143 were significantly associated with gastric cancer. | Dong-Hyuk Yim Yan-Wei Zhang Sang-Yong Eom Sun In Moon Hyo-Yung Yun Young-Jin Song Sei-Jin Youn Taisun Hyun Joo-Seung Park Byung Sik Kim Jong-Young Lee Yong-Dae Kim Heon Kim | 2013 | World Journal of Gastroenterology2013，19，35： | 6 |
| 9 | Evaluation of the relationship between dietary factors,CagA-positive Helicobacter pylori infection,and RUNX3 promoter hypermethylation in gastric cancer tissue显示文摘AIM:To evaluate the relationship among Helicobacter pylori(H.pylori) infection,CagA status,and dietary factors with RUNX3 promoter hypermethylation.METHODS:Gastric cancer tissue samples were collected from 184 South Korean patients.All patients were interviewed following a semi-quantitative food frequency questionnaire.The average frequencies of intake and portion sizes of 89 common food items were documented,and total intakes of calories,nutrients,vitamins,and minerals were calculated for each subject.DNA was extracted from gastric cancer tissue samples,and amplification of the HSP60 gene was performed to detect H.pylori infection.Nested polymerase chain reaction(PCR) was used to detect the presence of the CagA gene.RUNX3 gene expression was measured by reverse transcription-PCR,and RUNX3 methylation status was evaluated by methylation-specific PCR.The odds ratios(ORs) and 95%CI associated with RUNX3 promoter hypermethylation status were estimated for each of the food groups,lifestyle factors,and the interaction between dietary and lifestyle factors with CagA status of H.pylori infection.RESULTS:Overall,164 patients(89.1%) were positive for H.pylori DNA,with the CagA gene detected in 59(36%) of these H.pylori-positive samples.In all,106(57.6%) patients with gastric cancer demonstrated CpG island hypermethylation at the RUNX3 promoter.RUNX3 expression was undetectable in 52(43.7%) of the 119 gastric cancer tissues sampled.A high consumption of eggs may increase the risk of RUNX3 methylation in gastric cancer patients,having a mean OR of 2.15(range,1.14-4.08).A significantly increased OR of 4.28(range,1.19-15.49) was observed with a high consumption of nuts in patients with CagA-positive H.pylori infection.High intakes of carbohydrate,vitamin B1,and vitamin E may decrease the risk of RUNX3 methylation in gastric cancer tissue,particularly in CagA-or H.pylori-negative infection,with OR of 0.41(0.19-0.90),0.42(0.20-0.89),and 0.29(0.13-0.62),respectively.A high consumption of fruits may protect against RUNX3 methylation.CONCLUSION:These results suggest that the CagA status of H.pylori infection may be a modifier of dietary effects on RUNX3 methylation in gastric cancer tissue. | Yan-Wei Zhang Sang-Yong Eom Dong-Hyuk Yim Young-Jin Song Hyo-Yung Yun Joo-Seung Park Sei-Jin Youn Byung-Sik Kim Yong-Dae Kim Heon Kim | 2013 | World Journal of Gastroenterology2013，19，11： | 6 |
| 10 | Assessment of scoring systems for acute-on-chronic liver failure at predicting short-term mortality in patients with alcoholic hepatitis显示文摘AIM To assess the performance of proposed scores specific for acute-on-chronic liver failure in predicting shortterm mortality among patients with alcoholic hepatitis.METHODS We retrospectively collected data from 264 patients with clinically diagnosed alcoholic hepatitis from January to December 2013 at 21 academic hospitals in Korea. The performance for predicting short-term mortality was calculated for Chronic Liver FailureSequential Organ Failure Assessment(CLIF-SOFA), CLIF Consortium Organ Failure score(CLIF-C OFs), Maddrey'sdiscriminant function(DF), age, bilirubin, international normalized ratio and creatinine score(ABIC), Glasgow Alcoholic Hepatitis Score(GAHS), model for end-stage liver disease(MELD), and MELD-Na.RESULTS Of 264 patients, 32(12%) patients died within 28 d. The area under receiver operating characteristic curve of CLIF-SOFA, CLIF-C OFs, DF, ABIC, GAHS, MELD, and MELD-Na was 0.86(0.81-0.90), 0.89(0.84-0.92), 0.79(0.74-0.84), 0.78(0.72-0.83), 0.81(0.76-0.86), 0.83(0.78-0.88), and 0.83(0.78-0.88), respectively, for 28-d mortality. The performance of CLIF-SOFA had no statistically significant differences for 28-d mortality. The performance of CLIF-C OFs was superior to that of DF, ABIC, and GAHS, while comparable to that of MELD and MELD-Na in predicting 28-d mortality. A CLIF-SOFA score of 8 had 78.1% sensitivity and 79.7% specificity, and CLIF-C OFs of 10 had 68.8% sensitivity and 91.4% specificity for predicting 28-d mortality.CONCLUSION CLIF-SOFA and CLIF-C OF scores performed well, with comparable predictive ability for short-term mortality compared to the commonly used scoring systems in patients with alcoholic hepatitis. | Hee Yeon Kim Chang Wook Kim Tae Yeob Kim Do Seon Song Dong Hyun Sinn Eileen L Yoon Young Kul Jung Ki Tae Suk Sang Soo Lee Chang Hyeong Lee Tae Hun Kim Jeong Han Kim Hyung Joon Yim Sung Eun Kim Soon Koo Baik Byung Seok Lee Jae Young Jang Young Seok Kim Sang Gyune Kim Jin Mo Yang Joo Hyun Sohn Heon Ju Lee Seung Ha Park Eun Hee Choi Dong Joon Kim Korean Acute-on-Chronic Liver Failure Study Group | 2016 | World Journal of Gastroenterology2016，22，41： | 5 |
| 11 | Anxiety and depression propensities in patients with acute toxic liver injury显示文摘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 noncommercial 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±3.4in Groups 1,2,and 3,respectively)(P<0.01 vs Group 1,P<0.05 vs Group 2).The BAI and BDI in Group 3showed 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±8.5in Groups 1,2,and 3,respectively)(BAI:P<0.01 vs Group 1,P<0.05 vs Group 2)(BDI:P<0.01 vs Group1 and 2).Group 3 showed a significantly higher hypochondriasis score(8.2±6.0,11.6±7.5 and 13.1±6.5in 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. | Jeong Ill Suh Jeong Kyu Sakong Kwan Lee Yong Kook Lee Jeong Bae Park Dong Joon Kim Yeon Seok SeoDepartment of Internal Medicine Korea University Anam Hospital Korea University College of Medicine Seoul 136-705 South Korea Jae Dong Lee Soon Young Ko Byung Seok Lee Seok Hyun Kim Byung Seok Kim Young Seok Kim Heon Ju Lee In Hee Kim Joo Hyun Sohn Tae Yeob Kim Byung Min Ahn | 2013 | World Journal of Gastroenterology2013，19，47： | 5 |
| 12 | Is there correlation between pancreatic enzyme and radiological severity in acute pancreatitis?显示文摘AIM: To investigate the correlation between the changes of pancreatic enzyme, the biochemical markers and the clinical results according to the Balthazar computer tomography (CT) grade. METHODS: Between July 2004 and July 2005, we reviewed the charts of 119 patients who were admitted to our hospital with acute pancreatitis. RESULTS: Eighty-three patients (69.7%) were male, and the mean age of the patients was 57 ± 15.7 years. The biliary pancreatitis patients had an older mean age. Forty-nine patients (41.1%) had biliary pancreatitis and forty-six (38.6%) had alcoholic pancreatitis. Group 3 patients had a longer duration of pain (2.51 ± 1.16 vs 3.17 ± 1.30 vs 6.56 ± 6.13, P < 0.001), a longer period of fasting (7.49 ± 4.65 vs 10.65 ± 5.54 vs 21.88 ± 13.81, P < 0.001) and a longer hospital stay (9.17 ± 5.34 vs 14.63 ± 8.65 vs 24.47 ± 15.52, P < 0.001) than the other groups. On the univariate analysis, the factors that affected the radiological grade were the leukocyte count at admission (P = 0.048), the hemoglobin (P = 0.016) and total bilirubin concentrations (P = 0.023), serum lipase (P = 0.009), the APACH Ⅱ scores at admission (P = 0.017), the APACH Ⅱ scores after 24 h (P = 0.031), the C-reactive protein (CRP) titer (P = 0.0001) and the follow up CRP titer (P = 0.003). But the CRP level (P = 0.001) and follow up CRP titer (P = 0.004) were only correlated with the radiological grade on multivariate analysis. According to the ROC curve, when we set the CRP cut off value at 83 mg/L, the likelihoodratio for a positive test was 3.84 and the likelihood ratio for a negative test was 0.26 in group 3. CONCLUSION: In conclusion, our study suggests that the CRP with the radiological severity may be used to estimate the severity of acute pancreatitis. | Yeon Soo Kim Byung Seok Lee Seok Hyun Kim Jae Kyu Seong Hyun Yong Jeong Heon Young Lee | 2008 | World Journal of Gastroenterology2008，14，15： | 5 |
| 13 | Effects of ciglitazone and troglitazone on the proliferation of human stomach cancer cells显示文摘AIM:To determine the cytological and molecular effects of peroxisome proliferation-activated receptor(PPAR)-γ and PPAR-γ agonists on stomach cancer cells.METHODS:To determine the proliferation-suppressive effects of troglitazone and ciglitazone,SNU-216 and SNU-668 stomach cancer cells were plated in media containing 40 μmol/L troglitazone and ciglitazone at a density of 1 × 104 cells/well.After 3,5 and 7 d,the cells were counted with a hemocytometer.To assess the appearance of PPAR-γ,a reverse-transcription polymerase chain reaction analysis was performed.On day 7,Western blotting was used to determine the effects of troglitazone and ciglitazone on the expression of p21 and phosphorylated-ERK(pERK) genes.Flow cytometry analysis was used to determine which portion of the cell cycle was delayed when troglitazone was used to suppress cell proliferation.In order to clarify the mechanism underlying the activity of troglitazone,microarray analysis was conducted.RESULTS:PPAR-γ was manifested in both SNU-216 and SNU-668 cells.Ciglitazone and troglitazone suppressed cell growth,and troglitazone was a stronger suppressor of stomach cancer cells than ciglitazone,an inducer of cell cycle arrest in the G1 phase.SNU-668 cells were also determined to be more sensitive to ciglitazone and troglitazone than SNU-216 cells.When troglitazone and ciglitazone were administered to stomach cancer cells,levels of p21 expression were increased,but ERK phosphorylation levels were reduced.When GW9662,an antagonist of PPAR-γ,was applied in conjunction with ciglitazone and troglitazone,the cell growth suppression effect was unaffected.The gene transcription program revealed a variety of alterations as the consequence of troglitazone treatment,and multiple troglitazone-associated pathways were detected.The genes whose expression was increased by troglitazone treatment were associated with cell development,differentiation,signal transmission between cells,and cell adhesion,and were also associated with reductions in cell proliferation,the cell cycle,nuclear metabolism,and phosphorylation.CONCLUSION:Troglitazone and ciglitazone suppress the proliferation of stomach cancer cells via a PPAR-γ-independent pathway. | Chan Woo Cheon Dae Hwan Kim Dong Heon Kim Yong Hoon Cho Jae Hun Kim | 2009 | World Journal of Gastroenterology2009，15，3： | 5 |
| 14 | Bird-mimetic Wing System of Flapping-wing Micro Air Vehicle with Autonomous Flight Control Capability显示文摘 | Sriyulianti Widhiarini Ji Hwan Park Bum Soo Yoon Kwang Joon Yoon ll-Hyun Paik Jong Heon Kim Chan Yik Park Seung Moon Jun Changho Nam | 2016 | Journal of Bionic Engineering2016，13，3： | 5 |
| 15 | Efficacy of Pegylated Interferon Monotherapy versus Sequential Therapy of Entecavir and Pegylated Interferon in Hepatitis B e Antigen-Positive Hepatitis B Patients: A Randomized, Multicenter, Phase IIIb Open-Label Study (POTENT Study)显示文摘 | Dae Won Jun Sang Bong Ahn Tae Yeob Kim Joo Hyun Sohn Sang Gyune Kim Se Whan Lee Byung Ho Kim Dong Joon Kim Ja Kyung Kim Hyoung Su Kim Seong Gyu Hwang Won Choong Choi Won Young Tak Heon Ju Lee Ki Tae Yoon Byung Cheol Yun Sung Wook Lee Soon Koo Baik Seung Ha Park Ji Won Park Sol Ji Park Ji Sung Lee | 2018 | Chinese Medical Journal2018，，14： | 5 |
| 16 | Significant risk and associated factors of active tuberculosis infection in Korean patients with inflammatory bowel disease using anti-TNF agents显示文摘AIM:To evaluate the incidence and risk factors of Korean tuberculosis(TB) infection in patients with inflammatory bowel disease(IBD) undergoing anti-TNF treatment.METHODS:The data of IBD patients treated with anti-TNFs in 13 tertiary referral hospitals located in the southeastern region of Korea were collected retrospectively.They failed to show response or were intolerant to conventional treatments,including steroids or immunomodulators.Screening measures for latent TB infection(LTBI)and the incidence and risk factors ofactive TB infection after treatment with anti-TNFs were identified.RESULTS:Overall,376 IBD patients treated with antiTNF agents were recruited(male 255,mean age of anti-TNF therapy 32.5±13.0 years);277 had Crohn’s disease,99 had ulcerative colitis,294 used infliximab,and 82 used adalimumab.Before anti-TNF treatment,screening tests for LTBI including an interferon gamma release assay or a tuberculin skin test were performed in 82.2%of patients.Thirty patients(8%)had LTBI.Sixteen cases of active TB infection including one TB-related mortality occurred during 801 personyears(PY)follow-up(1997.4 cases per 100000 PY)after anti-TNF treatment.LTBI(OR=5.76,95%CI:1.57-21.20,P=0.008)and WBC count<5000 mm3(OR=4.5,95%CI:1.51-13.44,P=0.007)during follow-up were identified as independently associated risk factors.CONCLUSION:Anti-TNFs significantly increase the risk of TB infection in Korean patients with IBD.The considerable burden of TB and marked immunosuppression might be attributed to this risk. | Eun Soo Kim Geun Am Song Kwang Bum Cho Kyung Sik Park Kyeong Ok Kim Byung Ik Jang Eun Young Kim Seong Woo Jeon Hyun Seok Lee Chang Heon Yang Yong Kook Lee Dong Wook Lee Sung Kook Kim Tae Oh Kim Jonghun Lee Hyung Wook Kim Sam Ryong Jee Seun Ja Park Hyun Jin Kim | 2015 | World Journal of Gastroenterology2015，21，11： | 5 |
| 17 | nfluence of paradoxical sleep deprivation and sleep recovery on testosterone level in rats of different ages显示文摘这研究被执行估计矛盾的睡觉剥夺(PSD ) 导致的浆液睾丸激素改变并且基于不同持续时间和年龄在睡觉恢复(SR ) 期间验证他们的变细。为更年轻的组的 12 个星期和为年长的组的 20 个星期的 Wistar 雄的老鼠随机被散布进下列组之一:一个控制组(笼子和平台) , 3 天的 SD, 5 天的 SD, 7 天的 SD, 1 天的 SR, 3 天的 SR 和 5 天的 SR 组。为 PSD,修改多重站台方法被用来明确地限制快速的眼睛运动(雷姆) 睡觉。在在更年轻的组和长辈之间的层次根据 PSD 和 SR 恢复的持续时间组织的睾丸激素和 luteinizing 荷尔蒙的差别被分析。继续两个都以一种时间依赖者方式在睡觉剥夺时期期间掉落在里面的睾丸激素更年轻(P=0.001,关联系数 r=− 0.651 ) 并且年长的组(P=0.001,关联系数 r=− 0.840 ) 。年长的组出现了一睾丸激素显著地低级与在 PSD 以后的更年轻的组相比。在在 3 天 PSD 以后的 SR 之上,睾丸激素水平继续在更年轻的组(P=0.013 ) 在睡觉恢复以后升起 5 天,而睾丸激素集中没能恢复直到在年长的组的白天 5。在 luteinizing 荷尔蒙(LH ) 关于减少与更年轻的组相比在年长的组在浆液睾丸激素上引起更有害的效果的 PSD 铺平。浆液睾丸激素水平的补充在建议 SD/SR 的效果可以是年龄依赖者的年长的组被禁止。SD 由并且怎么影响浆液睾丸激素的机制年龄可以修改这个过程仍然是不清楚的。 | Mi Mi Oh Jin Wook Kim Myeong Heon Jin Je Jong Kim Du Geon Moon | 2012 | Asian Journal of Andrology2012，14，2： | 4 |
| 18 | Phase-controlled synthesis of thermally stable nitrogen-doped carbon supported iron catalysts for highly efficient Fischer-Tropsch synthesis显示文摘Iron-based nan oparticles with un iform and high particle dispersi on,which are supported on carb on structures,have been used for various applications.However,their preparation still suffers from complicated synthesis involving multiple steps and from the high price of precursors and solve nts.In the prese nt work,a new carbon en capsulated iron-carbide nano particle supported on n itroge rvdoped porous carbon(Fe5C2@C/NPC)structure was introduced.It was made using a simple solid-state reaction with sequential thermal treatments.Fe5C2@C/NPC is a highly active and stable catalyst for the high-temperature Fischer-Tropsch synthesis reaction.It showed very high hydrocarbon productivity(4.71 gHc gcat^-1·h^-1)with high CO conversions(up to 96%). | Jin Hee Lee Hack-Keun Lee Dong Hyun Chun Hyunkyung Choi Geun Bae Rhim Min Hye Youn Heondo Jeong Shin Wook Kang Jung-ll Yang Heon Jung Chui Sung Kim Ji Chan Park | 2019 | Nano Research2019，12，10： | 4 |
| 19 | Risk assessment for the development of hepatocellular carcinoma: According to on-treatment viral response during long-term lamivudine therapy in hepatitis B virus-related liver disease显示文摘 | Jong Ryul Eun Heon Ju Lee Tae Nyeun Kim Kyeung Soo Lee | 2010 | Journal of Hepatology2010，，1： | 3 |
| 20 | Inhibitory effects of rapamycin on the different stages of hepatic fibrosis显示文摘AIM:To investigate and compare the inhibitory effects of rapamycin in the different stages of liver fibrosis.METHODS:We performed bile duct ligation(BDL)in male Wistar rats(n=24).The experimental rats were classified into four groups:the BDL+/Rapa-group(untreated control,n=4),the BDL+/Rapa+group(treated14 d after BDL,n=8),the BDL+/Rapa++group(treated on the day after BDL,n=8),and the BDL-/Rapagroup(un-treated,sham-operated control,n=4).The BDL+/Rapa+and BDL+/Rapa++groups were administered rapamycin(2 mg/kg)for 28 d.The liver tissues were tested by immunohistochemical staining forα-smooth muscle actin(α-SMA)and cytokeratin.RESULTS:The liver mRNA levels of transforming growth factor(TGF)-β1 and platelet-derived growth factor(PDGF)were measured using the polymerase chain reaction.The protein levels of liver p70s6K and p-p70s6k were determined using Western blotting.α-SMA expression was lowest in the BDL+/Rapa++group.TGF-β1and PDGF expression levels in the rapamycin-treated group were lower than those in the un-treated group and higher than those in the control groups(TGF-β1:0.23±0.00 vs 0.34±0.01,0.23±0.0 vs 0.09±0.00,P<0.0001;PDGF:0.21±0.00 vs 0.34±0.01,0.21±0.0 vs 0.09±0.00,P<0.0001).The p70s6k and p-p70s6k levels decreased in the treated groups and were lowest in the BDL+/Rapa++group(p70s6k:1.05±0.17 vs 1.30±0.56,0.40±0.01 vs 1.30±0.56,P<0.0001;p-p70s6k:1.40±0.5 vs 1.67±0.12,0.70±0.01 vs 1.67±0.12,P<0.0001).CONCLUSION:The results of our study indicate that rapamycin has inhibitory effects on liver fibrosis,and the treatment is most effective in the early stages of fibrosis. | Yun Jeung Kim Eaum Seok Lee Seok Hyun Kim Heon Young Lee Seung Moo Noh Dae Young Kang Byung Seok Lee | 2014 | World Journal of Gastroenterology2014，20，23： | 3 |
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