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| 1 | Differing coping mechanisms, stress level and anorectal physiology in patients with functional constipation显示文摘AIM: To investigate coping mechanisms, constipation symptoms and anorectal physiology in 80 constipated subjects and 18 controls.METHODS: Constipation was diagnosed by Rome Ⅱ criteria.Coping ability and anxiety/depression were assessed by validated questionnaires. Transit time and balloon distension test were performed.RESULTS: 34.5% patients were classified as slow transit type of constipation. The total colonic transit time (56 h vs 10 h, P<0.0001) and rectal sensation including urge sensation (79 mL vs 63 mL, P = 0.019) and maximum tolerable volume (110 mL vs95 mL, P = 0.03) differed in patients and controls. Constipated subjects had significantly higher anxiety and depression scores and lower SF-36 scores in all categories. They also demonstrated higher scores of'monitoring' coping strategy (14+6 vs9+3, P = 0.001),which correlated with the rectal distension sensation (P = 0.005), urge sensation (P=0.002), and maximum tolerable volume (P = 0.035). The less use of blunting strategy predicted slow transit constipation in both univariate (P = 0.01) and multivariate analysis (P = 0.03).CONCLUSION: Defective or ineffective use of coping strategies may be an important etiology in functional constipation and subsequently reflected in abnormal anorectal physiology. | Annie OO Chan Cecilia Cheng Wai Mo Hui Wayne HC Hu Nina YH Wong KF Lam Wai Man Wong Kam Chuen Lai Shiu Kum Lam Benjamin CY Wong | 2005 | World Journal of Gastroenterology2005，11，34： | 92 |
| 2 | 胃癌预防亚太地区共识指南显示文摘背景与目的:胃癌是亚太地区的主要健康负担之一,但对其预防策略尚缺乏共识。本共识会议旨在评价预防胃癌的策略。方法:多学科专家组应用德尔菲(Delphi)法制订共识条文,提呈相关数据,对证据等级、推荐强度以及共识水平予以分级。结果:幽门螺杆菌(H.pylori)感染是非贲门胃腺癌必要但非充分的致病因子。盐的高摄入与胃癌强烈相关。新鲜果蔬对胃癌具有预防作用,但维生素和其他饮食补充并不能预防胃癌。H.pylori感染中的宿主-细菌相互作用导致不同类型的胃炎和胃酸分泌,从而决定疾病结局。胃癌阳性家族史是一个重要的危险因素。低血清胃蛋白酶原反映胃萎缩程度,可作为检出胃癌高危人群的标志物。H.pylori筛查和治疗被推荐作为减少高危人群胃癌危险性的一种策略,该策略在萎缩性胃炎发生前实施最为有效,但并不排除对胃癌高危人群的内镜监测。对胃癌低危人群不推荐行H.pylori筛查。H.pylori感染的一线治疗应遵循国家治疗指南。结论:高危人群中H.pylori筛查和根除策略可能会减少胃癌的发生率,本共识根据现有证据予以推荐。 | Kwong Ming Fock Nick Talley Paul Moayyedi Richard Hunt Takeshi Azuma Kentaro Sugano Shu Dong Xiao Shiu Kum Lam Khean Lee Goh Tsutomu Chiba Naomi Uemura Jae G Kim Nayoung Kim Tiing Leong Ang Varocha Mahachai Hazel Mitchell Abdul Aziz Rani Jyh Ming Liou Ratha-korn Vilaichone Jose Sollanor 钱本余 | 2008 | 胃肠病学2008，13，4： | 37 |
| 3 | Reinfection rate and endoscopic changes after successful eradication of Helicobacter pylori显示文摘AIM:To determine the long-term outcomes regarding reinfection with Helicobacter pylori(H.pylori)and endoscopic changes after successful H.pylori eradication. METHODS:From June 1994 to January 2007,186 patients(M:F=98:88;mean age 50.0±11.4 years), in whom H.pylori had been successfully eradicated, were enrolled.The mean duration of follow up was 41.2±24.0 mo. RESULTS:H.pylori reinfection occurred in 58 patients (31.2%).The average annual reinfection rate was 9.1% per patient year.No recurrence of peptic ulcer was detected at the follow up endoscopy.There were no significant differences between the H.pylori eradication regimens for the reinfection rate and no significant differences in endoscopic findings between the H.pylorirecurred group and the H.pylori-cured group.CONCLUSION:The reinfection rate in Korea is 9.1% which represents a decreasing trend.There was no relationship between H.pylori infection status and changes in endoscopic findings.There was also no recurrence or aggravation of ulcers. | Kum Hei Ryu Sun Young Yi Youn Ju Na Su Jung Baik Su Jin Yoon Hae-Sun Jung Hyun Joo Song | 2010 | World Journal of Gastroenterology2010，16，2： | 14 |
| 4 | Macrophage migration inhibitory factor stimulated by He/icobacter py/oriincreases proliferation of gastric epithelial cells显示文摘AIM: Helicobacter pylori (H pylori) is associated with increased gastric inflammatory and epithelial expression of macrophage migration inhibitory factor (MIF) and gastric epithelial cell proliferation. This study aimed at determining whether H pylori directly stimulates release of MIF in monocytes, whether the cay pathogenicity island (PAI) is involved for this function, and whether MIF stimulated by H pylori increases gastric epithelial cell proliferation in vitro.METHODS: A cytotoxic wild-type H pylori strain (TN2),its three isogenic mutants (TN2△cag, TN2△cagA and TN2△cagE) were co-cultured with cells of a human monocyte cell line, THP-1, for 24 h at different organism/cell ratios. MIF in the supernatants was measured by an ELISA. Cells of a human gastric cancer cell line, MKN45,were then co-cultured with the supernatants, with and without monoclonal anti-MIF antibody for 24 h. The cells were further incubated for 12 h after addition of 3H-thymidine, and the levels of incorporation of 3H-thymidine were measured with a liquid scintillation counter.RESULTS: The wild-type strain and the isogenic mutants,TN2△cagA and TN2△cagE, increased MIF release at organism/cell ratios of 200/1 and 400/1, but not at the ratios of 50/1 and 100/1. However, the mutant TN2△cag did not increase the release of MIF at any of the four ratios.3H-thymidine readings for MKN-45 cells were significantly increased with supernatants derived from the wild-type strain and the mutants TN2△cagA and TN2△cagE, but not from the mutant TN2△cag. Moreover, in the presence of monoclonal anti-MIF antibody, the stimulatory effects of the wild-type strain on cell proliferation disappeared.CONCLUSION: H pylori stimulates MIF release in monocytes, likely through its cag PAI, but not related to cagA or cagE. H pylori-stimulated monocyte culture supernatant increases gastric cell proliferation, which is blocked by anti-MIF antibody, suggesting that MIF plays an important role in H pylori-induced gastric epithelial cell proliferation. | Harry Hua-Xiang Xia Shiu Kum Lam Annie O.O.Chan Marie Chia Mi Lin Hsiang Fu Kung Keiji Ogura Douglas E.Berg Benjamin Chun-Yu Wong | 2005 | World Journal of Gastroenterology2005，11，13： | 12 |
| 5 | Development of a Rapid Multi-residue Assay for Detecting β-lactams Using Penicillin Binding Protein 2x显示文摘Objective To develop a rapid multi-residue assay for detecting 16 demanded by the European Union (EU). Methods A recombinant penicillin-binding protein(PBP)2x* from Streptococcus pneumoniae R6 was expressed in vitro and six β-lactams were conjugated to HRP by four methods.A rapid multi-residue assay for β-lactams was established with PBP2x* and HRP-conjugate. Results PBP2x* was expressed and purified successfully and the ideal HRP-conjugate was identified. The multi-residue assay was developed.After optimization,penicillin G,ampicillin,amoxicillin, cloxacillin,dicloxacillin,oxacillin,nafcillin,cephalexin,ceftiofur,cefaIonium,cefquinome,cefazolin, cefoperazone,cephacetrile,and cephapirin can be detected at levels below MRL in milk with simple pretreatment. Conclusion This assay developed can detect all 16 β-lactams demanded by the European Union(EU). The whole procedure takes only 45 min and can detect 42 samples and the standards with duplicate analysis. | ZENG Kum ZHANG Jing WANG Yang WANG ZhanHui ZHANG Su Xia WU Chong Ming SHEN Jian Zhong | 2013 | Biomedical and Environmental Sciences2013，26，2： | 7 |
| 6 | 幽门螺杆菌慢性感染诱导胃上皮细胞产生凋亡耐受显示文摘目的 建立幽门螺杆菌 (Hp)慢性感染胃上皮细胞模型 ,并分析Hp慢性感染与胃上皮细胞凋亡的关系。方法 用HpSS1与人非肿瘤性胃上皮细胞株GES 1共培养 16周 ,建立GES 1模型细胞 ,然后采用流式细胞术分析这种模型细胞对Hp和其它肠道细菌以及抗肿瘤药物凋亡诱导剂的应答。结果 成功获得了Hp慢性感染胃上皮细胞模型 (GES 1模型细胞 )。这种模型细胞不仅对Hp诱导的凋亡耐受 ,而且对其他肠道细菌和一些凋亡诱导剂也是耐受的。结论 幽门螺杆菌慢性感染诱导胃上皮细胞产生凋亡耐受 ,由此可能增加了胃上皮细胞癌变的危险性。 | 何兴祥 胡品津 Benjamin Chun Yu Wong Shiu Kum Lam Harry Hua Xiang Xia | 2003 | 中华医学杂志2003，83，1： | 6 |
| 7 | Bacterial entombment by intratubular mineralization following orthograde mineral trioxide aggregate obturation: a scanning electron microscopy study显示文摘The time domain entombment of bacteria by intratubular mineralization following orthograde canal obturation with mineral trioxide aggregate(MTA) was studied by scanning electron microscopy(SEM). Single-rooted human premolars(n560) were instrumented to an apical size #50/0.06 using ProF ile and treated as follows: Group 1(n510) was filled with phosphate buffered saline(PBS); Group 2(n510) was incubated with Enterococcus faecalis for 3 weeks, and then filled with PBS; Group 3(n520) was obturated orthograde with a paste of OrthoM TA(BioM TA, Seoul, Korea) and PBS; and Group 4(n520) was incubated with E. faecalis for 3 weeks and then obturated with OrthoM TA–PBS paste. Following their treatments, the coronal openings were sealed with PBS-soaked cotton and intermediate restorative material(IRM), and the roots were then stored in PBS for 1, 2, 4, 8 or 16 weeks. After each incubation period, the roots were split and their dentin/MTA interfaces examined in both longitudinal and horizontal directions by SEM. There appeared to be an increase in intratubular mineralization over time in the OrthoM TA-filled roots(Groups 3 and 4). Furthermore, there was a gradual entombment of bacteria within the dentinal tubules in the E. faecalis inoculated MTA-filled roots(Group 4). Therefore, the orthograde obturation of root canals with OrthoM TA mixed with PBS may create a favorable environment for bacterial entombment by intratubular mineralization. | Jun Sang Yoo Seok-Woo Chang So Ram Oh Hiran Perinpanayagam Sang-Min Lim Yeon-Jee Yoo Yeo-Rok Oh Sang-Bin Woo Seung-Hyun Han Qiang Zhu Kee-Yeon Kum | 2014 | International Journal of Oral Science2014，6，4： | 5 |
| 8 | End-to-End Autonomous Driving Through Dueling Double Deep Q-Network显示文摘Recent years have seen the rapid development of autonomous driving systems,which are typically designed in a hierarchical architecture or an end-to-end architecture.The hierarchical architecture is always complicated and hard to design,while the end-to-end architecture is more promising due to its simple structure.This paper puts forward an end-to-end autonomous driving method through a deep reinforcement learning algorithm Dueling Double Deep Q-Network,making it possible for the vehicle to learn end-to-end driving by itself.This paper firstly proposes an architecture for the end-to-end lane-keeping task.Unlike the traditional image-only state space,the presented state space is composed of both camera images and vehicle motion information.Then corresponding dueling neural network structure is introduced,which reduces the variance and improves sampling efficiency.Thirdly,the proposed method is applied to The Open Racing Car Simulator(TORCS)to demonstrate its great performance,where it surpasses human drivers.Finally,the saliency map of the neural network is visualized,which indicates the trained network drives by observing the lane lines.A video for the presented work is available online,http://gffzz6712f30e645c4b03s0b66bp0cqcfw69qb.ffgz.tsg.suse.edu.cn/76ciJ mIHMD8 or http://gffzz9886e3e54abf46a9s0b66bp0cqcfw69qb.ffgz.tsg.suse.edu.cn/v_show/id_XNDM4 ODc0M TM4NA==.html. | Baiyu Peng Qi Sun Shengbo Eben Li Dongsuk Kum Yuming Yin Junqing Wei Tianyu Gu | 2021 | Automotive Innovation2021，4，3： | 5 |
| 9 | Celecoxib-related gastroduodenal ulcer and cardiovascular events in a randomized trial for gastric cancer prevention显示文摘AIM: To evaluate the long-term risk of gastroduodenal ulcer and cardiovascular events induced by celecoxib in a population-based, randomized, double-blind, placebo-controlled study.METHODS: From 2004 to 2006, a total of 1024 Chinese patients (aged 35 to 64 years) with severe chronic atrophic gastritis, intestinal metaplasia or dysplasia were randomly assigned to receive 200 mg of celecoxib twice daily or placebo in Linqu County (Shandong Province, China), a high-risk area of gastric cancer. All gastroduodenal ulcer and cardiovascular events occurred were recorded and the patients were followed up for 1.5 years after treatment. At the end of the trial, a systematic interview survey about other adverse events was conducted. RESULTS: Gastroduodenal ulcer was detected in 19 of 463 (3.72%) patients who received celecoxib and 17 of 473 (3.31%) patients who received placebo, respectively (odds ratio = 1.13, 95% CI = 0.58-2.19). Cardiovascular (CV) events occurred in 4 patients who received celecoxib and in 5 patients who received placebo, respectively. Compared with those who received placebo, patients who received celecoxib had no signif icant increase in occurrence of CV events (hazard ratio = 0.84, 95% CI = 0.23-3.15). Among the adverse events acquired by interview survey, only the frequency of bloating was signif icantly higher in patients treated with celecoxib than in those treated with placebo. CONCLUSION: Treatment of gastric cancer with celecoxib is not associated with increased risk of gastroduodenal ulcer and cardiovascular events. | Guo-Shuang Feng Jun-Ling Ma Benjamin CY Wong Lian Zhang Wei-Dong Liu Kai-Feng Pan Lin Shen Xiao-Dong Zhang Jie Li Harry HX Xia Ji-You Li Shiu Kum Lam Wei-Cheng You | 2008 | World Journal of Gastroenterology2008，14，28： | 4 |
| 10 | Antimicrobial effect of alexidine and chlorhexidine against Enterococcus faecalis infection显示文摘A previous study demonstrated that alexidine has greater affinity for the major virulence factors of bacteria than chlorhexidine. The aim of this study was to compare the antimicrobial activity of 1% alexidine with that of 2% chlorhexidine using Enterococcus faecalis.infected dentin blocks. Sixty bovine dentin blocks were prepared and randomly divided into six groups of 10 each. E. faecalis was inoculated on 60 dentin blocks using the Luppens apparatus for 24 h and then the dentin blocks were soaked in 2% chlorhexidine or 1% alexidine solutions for 5 and 10 min, respectively. Sterile saline was used as a control. The antimicrobial efficacy was assessed by counting the number of bacteria adhering to the dentin surface and observing the degradation of bacterial shape or membrane rupture under a scanning electron microscope. Significantly fewer bacteria were observed in the 2% chlorhexidine- or 1% alexidine-soaked groups than in the control group (P^O.05). However, there was no significant difference in the number of bacteria adhering to the dentinal surface between the two experimental groups or between the two soaking time groups (P>0.05). Ruptured or antiseptic-attached bacteria were more frequently observed in the lO-min-soaked chlorhexidine and alexidine groups than in the 5-min-soaked chlorhexidine and alexidine groups. In conclusion, lO-min soaking with 1% alexidine or 2% chlorhexidine can be effective against E. faecalis infection. | Hyun-Shik Kim Seok Woo Chang Seung-Ho Baek Seung Hyun Han Yoon Lee Qiang Zhu Kee-Yeon Kum | 2013 | International Journal of Oral Science2013，5，1： | 4 |
| 11 | Stereotactic body radiation therapy for inoperable hepatocellular carcinoma as a local salvage treatment after incomplete transarterial chemoembolization显示文摘 | Jin‐Kyu Kang Mi‐Sook Kim Chul Koo Cho Kwang Mo Yang Hyung Jun Yoo Jin Ho Kim Sun Hyun Bae Da Hoon Jung Kum Bae Kim Dong Han Lee Chul Ju Han Jin Kim Su Cheol Park Young Han Kim | 2012 | Cancer2012，，21： | 3 |
| 12 | 世界蓝晶石矿物资源及其选矿显示文摘 | 张维庆 Kum Francis | 2000 | 中国非金属矿工业导刊2000，，4： | 3 |
| 13 | Cytomegalovirus ileitis in an immunocompetent elderly adult显示文摘Cytomegalovirus 肠炎最通常与为人的免疫不全病毒积极的病人被联系或免疫镇压了 transplant 病人。胃肠道可以从食管被影响在任何地方到冒号,但是小肠参与是稀罕的。我们在一个免疫能力的成年人报导 cytomegalovirus 回肠炎的一个案例,它被组织病理学说的调查结果通过 colonoscopic 活体检视证实。 | Kum Hei Ryu Sun Young Yi | 2006 | World Journal of Gastroenterology2006，12，31： | 3 |
| 14 | Predictors for difficult cecal insertion in colonoscopy: The impact of obesity indices显示文摘AIM To identify the factors influencing cecal insertion time(CIT) and to evaluate the effect of obesity indices on CIT. METHODS We retrospectively reviewed the data for participants who received both colonoscopy and abdominal computed tomography(CT) from February 2008 to May 2008 as part of a comprehensive health screening program. Age, gender, obesity indices [body mass index(BMI), waist-to-hip circumference ratio(WHR), waist circumference(WC), visceral adipose tissue(VAT)volume and subcutaneous adipose tissue(SAT) volume on abdominal CT], history of prior abdominal surgery, constipation, experience of the colonoscopist, quality of bowel preparation, diverticulosis and time required to reach the cecum were analyzed. CIT was categorized as longer than 10 min(prolonged CIT) and shorter than or equal to 10 min, and then the factors that required a CIT longer than 10 min were examined.RESULTS A total of 1678 participants were enrolled. The mean age was 50.42 ± 9.931 years and 60.3% were men. The mean BMI, WHR, WC, VAT volume and SAT volume were 23.92 ± 2.964 kg/m2, 0.90 ± 0.076, 86.95 ± 8.030 cm, 905.29 ± 475.220 cm3 and 1707.72 ± 576.550 cm3, respectively. The number of patients who underwent abdominal surgery was 268(16.0%). Colonoscopy was performed by an attending physician alone in 61.9% of cases and with the involvement of a fellow in 38.1% of cases. The median CIT was 7 min(range 2-56 min, IQR 5-10 min), and mean CIT was 8.58 ± 5.291 min. Being female, BMI, VAT volume and involvement of fellow were significantly associated with a prolonged CIT in univariable analysis. In multivariable analysis, being female(OR = 1.29, P = 0.047), lower BMI(< 23 kg/m2)(OR = 1.62, P = 0.004) or higher BMI(≥ 25 kg/m2)(OR = 1.80, P < 0.001), low VAT volume(< 500 cm3)(OR = 1.50, P = 0.013) and fellow involvement(OR = 1.73, P < 0.001) were significant predictors of prolonged CIT. In subgroup analyses for gender, lower BMI or higher BMI and fellow involvement were predictors for prolonged CIT in both genders. However, low VAT volume was associated with prolonged CIT in only women(OR = 1.54, P = 0.034).CONCLUSION Being female, having a lower or higher BMI than the normal range, a low VAT volume, and fellow involvement were predictors of a longer CIT. | Soo Yun Moon Byung Chang Kim Dae Kyung Sohn Kyung Su Han Bun Kim Chang Won Hong Bum Joon Park Kum Hei Ryu Ji Hyung Nam | 2017 | World Journal of Gastroenterology2017，23，13： | 3 |
| 15 | Structural evolution during mechanical alloying and annealing of a Nb-25at%Al alloy显示文摘 | Hye-Sung Kim Dongwha Kum Shuji Hanada | 2000 | Journal of Materials Science2000，，1： | 2 |
| 16 | Superplasticity in Thin Magnesium Alloy Sheet and Detormation Mechanism Maps for Magnesium Alloys at Elevated Temperatures显示文摘 | Kim W J Chung S W Kum D | 2001 | Acta Mater2001，，49： | 2 |
| 17 | Tissue Doppler Imaging Is Superior to Strain Rate Imaging and Postsystolic Shortening on the Prediction of Reverse Remodeling in Both Ischemic and Nonischemic Heart Failure After Cardiac Resynchronization Therapy显示文摘 | Cheuk-Man Yu Jeffrey Wing-Hong Fung Qing Zhang Chi-Kin Chan Yat-Sun Chan Hong Lin Leo C.C. Kum Shun-Ling Kong Yan Zhang John E. Sanderson | 2004 | Circulation: Journal of the American Heart Association2004，，1： | 2 |
| 18 | The Integrator complex controls the termination of transcription at diverse classes of gene targets显示文摘包含 INTS3 和 NABP1 或 NABP2 的建筑群开始在 DNA 损坏回答被描绘,但是他们的生物化学的功能仍然保持未知。用亲密关系纯化和 HIV 集成定序目标(HIT-Seq ) ,我们发现这些建筑群是综合者建筑群的部分,它绑 RNA 聚合酶 II 并且调整特定的目标基因。综合者作为他们在亲密地被结合的机制处理到他们的成熟形式的部分劈开 snRNAs 抄写结束。然而, HIT-Seq 表明那个综合者也绑在 3 ′以 polyadenylated 抄本复制依赖者 histones 和倡导者结束基因的近似区域。综合者子单元的弄空导致抄写结束失败, histone mRNA 处理的混乱,和 snRNAs 和 histone mRNAs 的 polyadenylation。而且,倡导者综合者的近似绑定否定地通常调整其抄本是的基因的表示 polyadenylated。到所有三个基因类的综合者招募是 DSIF 依赖的,建议那个综合者作为在 DSIF 依赖的 RNA 聚合酶 II 的结束建筑群工作暂停地点。 | Jeffrey R Skaar Andrea L Ferris Xiaolin Wu Anita Saraf Kum Kum Khanna Laurence Florens Michael P Washburn Stephen H Hughes Michele Pagano | 2015 | Cell Research2015，25，3： | 2 |
| 19 | Antralization at the edge of proximal gastric ulcers:Does Helicobacter pylori infection play a role?显示文摘AIM: To determine the prevalence of antralization at the edge of proximal gastric ulcers, and the effect ofH. pylori eradication on the mucosal appearances.
METHODS: Biopsies were taken from the antrum, body and the ulcer edge of patients with benign proximal gastric ulcers before and one year after treatment. Gastric mucosa was classified as antral, transitional or body type.H. pylori positive patients receivedeither triple therapy, or omeprazole.
RESULTS: Patients with index ulcers in the incisura, body or fundus (n=116) were analyzed. Antral-type mucosa was more prevalent at the ulcer edge inH. pylori-positive patients thanH.pylori-negative patients (93% vs 60%, OR=8.95,95%CI: 2.47-32.4, P=0.001). At one year, there was a significant reduction in the prevalence of antralization (from 93 % to 61%, P=0.004) at the ulcer edge in patients with H. pyloribeing eradicated. However, there was no difference in the prevalence of antralization at the ulcer edge in those with persistent infection.
CONCLUSION: H. pylori infection is associated with antralization at the edge of proximal gastric ulcers, which may be reversible in some patients after eradication of the infection. | Harry Hua-Xinag Xia Shiu Kum Lam Wai Man Wong Wayne Hsing Cheng Hu Kam Chuen Lai Sau Hing Wong Suet Yi Leung Siu Tsan Yuen Nicholas A.Wright Benjamin Chun-Yu Wong | 2003 | World Journal of Gastroenterology2003，9，6： | 2 |
| 20 | Association of colorectal adenoma with components of metabolic syndrome显示文摘 | Byung Kim Aesun Shin Chang Hong Dae Sohn Kyung Han Kum Ryu Bum Park Ji Nam Ji Park Hee Chang Hyo Choi Jeongseon Kim Jae Oh | 2012 | Cancer Causes & Control2012，，5： | 2 |
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