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6篇 您的检索式:作者名="Chan Woo Cheon"
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1Prevalence 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 2009World Journal of Gastroenterology2009,15,1:15
2Effects 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 2009World Journal of Gastroenterology2009,15,3:5
3Intestinal endometriosis:Diagnostic ambiguities and surgical outcomes显示文摘BACKGROUND Endometriosis is a common disease for women of reproductive age. However,when it involves intestines, it is difficult to diagnose preoperatively because its symptoms overlap with other diseases and the results of evaluations can be unspecific. Thus it is important to know the clinical characteristics of intestinal endometriosis and how to exactly diagnose.AIM To analyze patients in whom intestinal endometriosis was diagnosed after surgical treatments, and to evaluate the clinical characteristics of preoperatively misdiagnosed cases.METHODS We retrospectively reviewed the pathologic reports of 30 patients diagnosed as having intestinal endometriosis based on surgical specimens between January2000 and December 2017. We reviewed their clinical characteristics and surgical outcomes.RESULTS Twenty-three(76.6%) patients showed symptoms associated with endometriosis,with dysmenorrhea being the most common(n = 9, 30.0%). Thirteen patients(43.3%) had a history of pelvic surgeries. Ten patients(33.3%) had a history of treatment for endometriosis. Only 4 patients(13.3%) had a diagnosis of endometriosis based on endoscopic biopsy findings. According to preoperative evaluations, 13 patients(43.3%) had an initial diagnosis of pelvic endometriosis and 17 patients(56.6%) were misdiagnosed as having other diseases. The most common misdiagnosis was submucosal tumor in the large intestine(n = 8, 26.7%),followed by malignancies of the colon/rectum(n = 3, 10.0%) and ovary(n = 3,10.0%). According to the Clavien-Dindo classification, 5 complications were grade I or II and 2 complications were grade IIIa. The median follow-up period was 26.9(0.6-132.1) mo, and only 1 patient had a recurrence of endometriosis.CONCLUSION Intestinal endometriosis is difficult to diagnose preoperatively because it mimics various intestinal diseases. Thus, if women of reproductive age have ambiguous symptoms and signs with nonspecific radiologic and/or endoscopic findings,intestinal endometriosis should be included in the differential diagnosis.Jun Woo Bong Chang Sik Yu Jong Lyul Lee Chan Wook Kim Yong Sik Yoon In Ja Park Seok-Byung Lim Jin Cheon Kim 2019World Journal of Clinical Cases2019,7,4:3
4The effect of surface-modified nano-hydroxyapatite on biocompatibility of poly( ε -caprolactone)/hydroxyapatite nanocomposites显示文摘Hong Jae Lee Sung Eun Kim Hyung Woo Choi Chan Woo Kim Kyung Ja Kim Sang Cheon Lee 2007European Polymer Journal2007,,5:1
5In situ fabrication of alendronate-loaded calcium phosphate microspheres: Controlled release for inhibition of osteoclastogenesis显示文摘Chan Woo Kim Young-Pil Yun Hong Jae Lee Yu-Shik Hwang Il Keun Kwon Sang Cheon Lee 2010Journal of Controlled Release2010,,1:1
6A Randomized Controlled Comparative Study of Covered Versus Uncovered Self-Expandable Metal Stent for Malignant Biliary Obstruction显示文摘S.H. Lee Sang Woo Cha Young Koog Cheon Y. Kim J.H. Moon Y.D. Cho Y.S. Kim J.S. Lee M.S. Lee Chan Sup Shim Boo Sung Kim 2004Gastrointestinal Endoscopy2004,,5:1
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