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1突发性聋治疗的国际共识显示文摘突发性聋是耳鼻咽喉科常见急症,目前该病的治疗仍存在许多问题。虽然已有很多关于突发性聋的meta分析和治疗指南问世,其治疗方案(包括治疗药物、治疗时程和给药途径)仍未形成标准。本文对突发性聋治疗的临床研究提出方法学建议,这些建议基于2017年法国巴黎国际耳鼻喉科学联合会(International Federation of Oto-rhino-laryng ological Societies,IFOS)大会中与会专家目前使用的主要治疗方案的临床证据等级。突发性聋研究中存在的主要问题是疾病的异质性,即患者初始听力损失程度及治疗后的听力恢复程度均有很大差异。全身应用糖皮质激素治疗突发性聋的有效性,其证据水平并未达到推荐使用的程度,但仍是突发性聋的主要治疗方法,可作为目前的标准方案,为减少受试者数量,建议将纳入标准限制为中度到极重度的听力损失。鼓室内糖皮质激素治疗作为挽救性治疗在几个小样本研究中被提及,需要大规模的随机对照试验加以证实。李姝娜 李越 杨军 Marx M Younes E Chandrasekhar SS 2018听力学及言语疾病杂志2018,26,4:25
2Endoscopic removal of gastric ectopic pancreas:An initial experience with endoscopic submucosal dissection显示文摘AIM:To evaluate the therapeutic usefulness and safety of endoscopic resection in patients with gastric ectopic pancreas.METHODS:A total of eight patients with ectopic pancreas were included.All of them underwent endoscopic ultrasonography before endoscopic resection.Endo-scopic resection was performed by two methods:endo-scopic mucosal resection(EMR)by the injection-and-cut technique or endoscopic mucosal dissection(ESD).RESULTS:We planned to perform EMR in all eight cases but EMR was successful in only four cases.In the other four cases,saline spread into surrounding normal tissues and the lesions becameattened,which made it impossible to remove them by EMR.Inthose four cases,we performed ESD and removed the lesions without any complications.CONCLUSION:If conventional EMR is difficult to remove gastric ectopic pancreas,ESD is a feasible alternative method for successful removal.Dong Yup Ryu Gwang Ha Kim Do Youn Park Bong Eun Lee Jae Hoon Cheong Dong Uk Kim Hyun Young Woo Jeong Heo Geun Am Song 2010World Journal of Gastroenterology2010,16,36:24
3百合在NaHCO_3胁迫下的生理响应机制显示文摘比较了耐盐碱的岷江百合(Lilium regale Wilson)和对盐碱敏感的东方百合‘索邦’(‘Sorbonne’)在不同浓度的碱性盐NaHCO_3胁迫下叶片的渗透调节物质、活性氧清除物质、离子调节物质(Na^+、K^+)及有机酸含量的变化,探讨百合耐盐碱的生理机制。研究发现,两种百合叶片中各种物质的变化趋势基本相似,但整体上岷江百合的各种物质含量或者活性均高于‘索邦’。随着NaHCO_3胁迫浓度的增加,两种百合叶片中的可溶性蛋白、脯氨酸含量增加,可溶性糖含量先升后降;SOD、GR的活性和AsA的含量先上升后下降,APX的活性和GSH的含量在低浓度胁迫时无明显变化,高浓度胁迫时显著下降;‘索邦’Na^+主要积累在成熟叶和新生叶中,岷江百合则主要积累在茎和成熟叶中,且能维持根、成熟叶和新生叶中较高水平的K^+/Na^+值;岷江百合中的草酸、乳酸和乙酸含量都一直增加或高于对照,‘索邦’中的苹果酸和乙酸含量一直增加。与‘索邦’相比,岷江百合在低浓度NaHCO_3胁迫下提高SOD活性和AsA含量,高浓度NaHCO_3胁迫下增加可溶性蛋白的含量并保持可溶性糖的稳定性,是其耐盐碱性较强的原因之一。李雅男 袁素霞 徐雷锋 杨盼盼 冯亚言 Younes Pourbeyrami Hir 明军 2016园艺学报2016,43,6:21
4Use of antibiotics in broiler production:Global impacts and alternatives显示文摘Antibiotics are used to fight bacterial infections.However, a selective pressure gave rise to bacteria resistant to antibiotics.This leaves scientists worried about the danger to human and animal health.Some strategies can be borrowed to reduce the use of antibiotics in chicken farms.Much research has been carried out to look for natural agents with similar beneficial effects of growth promoters.The aim of these alternatives is to maintain a low mortality rate, a good level of animal yield while preserving environment and consumer health.Among these, the most popular are probiotics, prebiotics, enzymes,organic acids, immunostimulants, bacteriocins, bacteriophages, phytogenic feed additives, phytoncides,nanoparticles and essential oils.Youcef Mehdi Marie-Pierre Létourneau-Montminy Marie-Lou Gaucher Younes Chorfi Gayatri Suresh Tarek Rouissi Satinder Kaur Brar Caroline Cté Antonio Avalos Ramirez Stéphane Godbout 2018Animal Nutrition2018,,2:19
5Management of the complications of endoscopic submucosal dissection显示文摘Endoscopic submucosal dissection(ESD) is currently widely accepted as a standard treatment option for early gastrointestinal neoplasms in Korea.However,ESD has technical difficulties and a longer procedure time than conventional endoscopic resection.So it may have a higher risk of complications than conventional endoscopic resection techniques.We,the ESD study group of Korean Society of Gastrointestinal Endoscopy,have experienced many complications,mostly treated by endoscopic or conservative management.Here,we introduce and share our experiences for managementof post ESD complications and review published papers on the topic.Seong Hwan Kim Jeong Seop Moon Young Hoon Youn Ki Myung Lee Sung Joon Lee 2011World Journal of Gastroenterology2011,17,31:19
6Functional Insights of Plant GSK3-like Kinases: Multi-Taskers in Diverse Cellular Signal Transduction Pathways显示文摘当 BIN2 代表的植物象 GSK3 一样 kinases 的功能的角色首先在 brassinosteroid 被阐明时,在植物的象 GSK3 一样 kinases 的生理的重要性出现了调整 BR 的信号 transduction 小径。当早研究在理解上更集中了怎么时象 GSK3 一样 kinases 调整 BR 发信号,最近的研究含有象 BR 发信号一样涉及许多细胞的过程的象 GSK3 一样 kinases 的许多新奇底层。植物象 GSK3 一样 kinases 玩在象房间生长,根和有气孔的房间开发,花开发,木部区别,轻反应,和压力回答那样的生理、发展的进程的多样的角色。这里,我们考察在理解植物象 GSK3 一样 kinases 的万用的功能在最近的年里取得的进步。基于在象 GSK3 一样 kinases 和他们的最新识别的底层之间的关系,我们讨论各种各样的细胞的发信号的生理、生物化学的关联在植物由象 GSK3 一样 kinases 调停了。Ji-Hyun Youn Tae-Wuk Kim 2015Molecular Plant2015,8,4:16
7道路公共交通效率的随机前沿分析方法显示文摘本文旨在测算18个城市共64个道路公共交通运营商的技术效率,并研究各因素对这些企业效率水平的影响程度.随机前沿分析(SFA)方法采用从2000年至2011年共计12年的样本数据.结果表明,营业利润、资本投入和企业规模都是影响技术效率水平的重要因素.计算得出的道路公共交通运营商的技术效率水平在0.46至0.95之间.投资较多的大规模运营商比小规模运营商技术效率更高,发达国家的运营商比发展中国家表现出更高的技术效率.Sami Jarboui Pascal Forget Younes Boujelbene 2013交通运输系统工程与信息2013,13,5:15
8Reinfection 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 2010World Journal of Gastroenterology2010,16,2:14
9Chaga mushroom (Inonotus obliquus) induces G0/G1 arrest and apoptosis in human hepatoma HepG2 cells显示文摘AIM: To investigate the anti-proliferative and apoptotic effects of Chaga mushroom (Inonotus obliquus) water extract on human hepatoma cell lines,HepG2 and Hep3B cells. METHODS: The cytotoxicity of Chaga extract was screened by 3-4,5-dimethylthiazol-2-yl-2,5-diphenyltetrazolium bromide (MTT) assay. Morphological observation,flow cytometry analysis,Western blot were employed to elucidate the cytotoxic mechanism of Chaga extract. RESULTS: HepG2 cells were more sensitive to Chaga extract than Hep3B cells,as demonstrated by markedly reduced cell viability. Chaga extract inhibited the cell growth in a dose-dependent manner,which was accompanied with G0/G1-phase arrest and apoptotic cell death. In addition,G0/G1 arrest in the cell cycle was closely associated with down-regulation of p53,pRb,p27,cyclins D1,D2,E,cyclin-dependent kinase (Cdk) 2,Cdk4,and Cdk6 expression. CONCLUSION: Chaga mushroom may provide a new therapeutic option,as a potential anticancer agent,in the treatment of hepatoma.Myung-Ja Youn Jin-Kyung Kim Seong-Yeol Park Yunha Kim Se-Jin Kim Jin Seok Lee Kyu Yun Chai Hye-Jung Kim Ming-Xun Cui Hong Seob So Ki-Young Kim Raekil Park 2008World Journal of Gastroenterology2008,14,4:13
10Is 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 2009World Journal of Gastroenterology2009,15,27:12
11Intravoxel incoherent motion diffusion-weighted imaging for monitoring chemotherapeutic efficacy in gastric cancer显示文摘AIM: To assess intravoxel incoherent motion diffusionweighted imaging(IVIM-DWI) for monitoring early efficacy of chemotherapy in a human gastric cancer mouse model.METHODS: IVIM-DWI was performed with 12 b-values(0-800 s/mm2) in 25 human gastric cancer-bearing nude mice at baseline(day 0), and then they were randomly divided into control and 1-, 3-, 5- and 7-d treatment groups(n = 5 per group). The control group underwent longitudinal MRI scans at days 1, 3, 5 and 7, and the treatment groups underwent subsequent MRI scans after a specified 5-fluorouracil/calciumfolinate treatment. Together with tumor volumes(TV), the apparent diffusion coefficient(ADC) and IVIM parameters [true water molecular diffusion coefficient(D), perfusion fraction(f) and pseudo-related diffusion coefficient(D*)] were measured. The differences in those parameters from baseline to each measurement(ΔTV%, ΔADC%, ΔD%, Δf% and ΔD*%) were calculated. After image acquisition, tumor necrosis, microvessel density(MVD) and cellular apoptosis were evaluated by hematoxylin-eosin(HE), CD31 and terminal-deoxynucleotidyl transferase mediated nick end labeling(TUNEL) staining respectively, to confirm the imaging findings. Mann-Whitney test and Spearman's correlation coefficient analysis were performed.RESULTS: The observed relative volume increase(ΔTV%) in the treatment group were significantly smaller than those in the control group at day 5(ΔTV_(treatment)% = 19.63% ± 3.01% and ΔTVcontrol% = 83.60% ± 14.87%, P = 0.008) and day 7(ΔTV_(treatment)% = 29.07% ± 10.01% and ΔTV_(control)% = 177.06% ± 63.00%, P = 0.008). The difference in ΔTV% between the treatment and the control groups was not significant at days 1 and 3 after a short duration of treatment. Increases in ADC in the treatment group(ΔADC%_(treatment), median, 30.10% ± 18.32%, 36.11% ± 21.82%, 45.22% ± 24.36%) were significantly higher compared with the control group(ΔADC%_(control), median, 4.98% ± 3.39%, 6.26% ± 3.08%, 9.24% ± 6.33%) at days 3, 5 and 7(P = 0.008, P = 0.016, P = 0.008, respectively). Increases in D in the treatment group(ΔD%_(treatment), median 17.12% ± 8.20%, 24.16% ± 16.87%, 38.54% ± 19.36%) were higher than those in the control group(ΔD%_(control), median-0.13% ± 4.23%, 5.89% ± 4.56%, 5.54% ± 4.44%) at days 1, 3, and 5(P = 0.032, P = 0.008, P = 0.016, respectively). Relative changes in f were significantly lower in the treatment group compared with the control group at days 1, 3, 5 and 7 follow-up(median,-34.13% ± 16.61% vs 1.68% ± 3.40%, P = 0.016;-50.64% ± 6.82% vs 3.01% ± 6.50%, P = 0.008;-49.93% ± 6.05% vs 0.97% ± 4.38%, P = 0.008, and-46.22% ± 7.75% vs 8.14% ± 6.75%, P = 0.008, respectively). D* in the treatment group decreased significantly compared to those in the control group at all time points(median,-32.10% ± 12.22% vs 1.85% ± 5.54%, P = 0.008;-44.14% ± 14.83% vs 2.29% ± 10.38%, P = 0.008;-59.06% ± 19.10% vs 3.86% ± 5.10%, P = 0.008 and-47.20% ± 20.48% vs 7.13% ± 9.88%, P = 0.016, respectively). Furthermore, histopathologic findings showed positive correlations with ADC and D and tumor necrosis(r_s = 0.720, P < 0.001; r_s = 0.522, P = 0.007, respectively). The cellular apoptosis of the tumor also showed positive correlations with ADC and D(r_s = 0.626, P = 0.001; r_s = 0.542, P = 0.005, respectively). Perfusionrelated parameters(f and D*) were positively correlated to MVD(r_s = 0.618, P = 0.001; r_s = 0.538, P = 0.006, respectively), and negatively correlated to cellular apoptosis of the tumor(r_s =-0.550, P = 0.004; r_s =-0.692, P < 0.001, respectively).CONCLUSION: IVIM-DWI is potentially useful for predicting the early efficacy of chemotherapy in a human gastric cancer mouse model.Xiao-Li Song Heoung Keun Kang Gwang Woo Jeong Kyu Youn Ahn Yong Yeon Jeong Yang Joon Kang Hye Jung Cho Chung Man Moon 2016World Journal of Gastroenterology2016,22,24:12
12Unveiling lymph node metastasis in early gastric cancer显示文摘With respect to gastric cancer treatment,improvements in endoscopic techniques and novel therapeutic modalities[such as endoscopic mucosal resection(EMR)and endoscopic submucosal dissection(ESD)]have been developed.Currently,EMR/ESD procedures are widely accepted treatment modalities for early gastric cancer(EGC).These procedures are most widely accepted in Asia,including in Korea and Japan.In the present era of endoscopic resection,accurate prediction of lymph node(LN)metastasis is a critical component of selecting suitable patients for EMR/ESD.Generally,indications for EMR/ESD are based on large Japanese datasets,which indicate that there is almost no risk of LN metastasis in the subgroup of EGC cases.However,there is some controversy among investigators regarding the validity of these criteria.Further,there are currently no accurate methods to predict LN metastasis in gastric cancer(for example,radiologic methods or methods based on molecular biomarkers).We recommend the use of a 2-step method for the management of early gastric cancer using endoscopic resection.The first step is the selection of suitable patients for endoscopic resection,based on endoscopic and histopathologic findings.After endoscopic resection,additional surgical intervention could be determined on the basis of a comprehensive review of the endoscopic mucosal resection/endoscopic submucosal dissection specimen,including lymphovascular tumor emboli,tumor size,histologic type,and depth of invasion.However,evaluation of clinical application data is essential for validating this recommendation.Moreover,gastroenterologists,surgeons,and pathologists should closely collaborate and communicate during these decisionmaking processes.Nari Shin Tae-Yong Jeon Gwang Ha Kim Do Youn Park 2014World Journal of Gastroenterology2014,20,18:10
13Contemporary management of locally advanced rectal cancer:Resolving issues, controversies and shifting paradigms显示文摘Advancements in rectal cancer treatment have resulted in improvement only in locoregional control and have failed to address distant relapse, which is the predominant mode of treatment failure in rectal cancer. As the efficacy of conventional chemoradiotherapy(CRT) followed by total mesorectal excision(TME) reaches a plateau, the need for alternative strategies in locally advanced rectal cancer(LARC) has grown in relevance. Several novel strategies have been conceptualized to address this issue, including: 1) neoadjuvant induction and consolidation chemotherapy before CRT; 2) neoadjuvant chemotherapy alone to avoid the sequelae of radiation; and 3) nonoperative management for patients who achieved pathological or clinical complete response after CRT. This article explores the issues, recent advances and paradigm shifts in the management of LARC and emphasizes the need for a personalized treatment plan for each patient based on tumor stage, location, gene expression and quality of life.Aeris Jane D.Nacion Youn Young Park Nam Kyu Kim 2018Chinese Journal of Cancer Research2018,30,1:10
14Toothpick impaction with sigmoid colon pseudodiverticulum formation successfully treated with colonoscopy显示文摘Foreign bodies in the colon are encountered with increasing frequency, but only sporadic reports concerning their management have appeared in the literature. While most ingested foreign bodies usually pass through the gastrointestinal tract uneventfully, sharp foreign bodies such as toothpicks infrequently cause intestinal perforation and may even result in death. We report our experience with a patient with a sigmoid colon pseudodiverticulum formation, a complication of accidental ingestion of a toothpick that was diagnosed and successfully managed colonoscopically.Youn Son Chung Yong Woo Chung Sun You Moon Su Mi Yoon Min-Jeong Kim Kyoung Oh Kim Cheol Hee Park Taeho Hahn Kyo-Sang Yoo Sang Hoon Park Jong Hyeok Kim Choong Kee Park 2008World Journal of Gastroenterology2008,14,6:10
15Application of Cellulose Nanofibril as a Wet-end Additive in Papermaking:A Brief Review显示文摘Recently,cellulose nanofibril(CNF)has emerged as a promising,sustainable reinforcement with outstanding potential in material science.Owing to the properties of CNF,it has been explored in food,cosmetic,and pharmaceutical applications,as well as in industrial applications such as paints,drill muds,packaging,and papermaking.The application of CNF in papermaking is expected to be implemented in the near future to broaden the commercial market of cellulose.Numerous studies and patents have reported on the manufacturing,properties,and applications of nanocellulose.This present paper focuses on the recent progresses in the application of CNF as a wet-end additive in papermaking.Guihua Yang Guangrui Ma Ming He Xinxiang Ji Hye Jung Youn Hak Lae Lee Jiachuan Chen 2020Paper And Biomaterials2020,5,2:9
16Urgent ERCP for acute cholangitis reduces mortality and hospital stay in elderly and very elderly patients显示文摘BACKGROUND: Acute cholangitis in old people is a cause of mortality and prolonged hospital stay. We evaluated the effects of methods and timing of biliary drainage on the outcomes of acute cholangitis in elderly and very elderly patients.METHODS: We analyzed 331 patients who were older than 75 years and were diagnosed with acute calculous cholangitis. They were admitted to our hospital from 2009 to 2014. Patients' demographics, severity grading, methods and timing of biliary drainage, mortality, and hospital stay were retrospectively obtained from medical records. Clinical parameters and outcomes were compared between elderly(75-80 years, n=156) and very elderly(≥81 years, n=175) patients. We analyzed the effects of methods [none, endoscopic retrograde cholangiopancreatography(ERCP), percutaneous transhepatic biliary drainage, or failure] and timing(urgent or early) of biliary drainage on mortality and hospital stay in these patients.RESULTS: Acute cholangitis in older patients manifested as atypical symptoms characterized as infrequent Charcot's triad(4.2%) and comorbidity in one-third of the patients. Patients were graded as mild, moderate, and severe cholangitis in 104(31.4%), 175(52.9%), and 52(15.7%), respectively. Urgent biliary drainage(≤24 hours) was performed for 80.5%(247/307) of patients. Very elderly patients tended to have more severe grades and were treated with sequential procedures of transient biliary drainage and stone removal at different sessions. Hospital stay was related to methods and timing of biliary drainage. Mortality was very low(1.5%) and not related to patient age but rather to the success or failure of biliary drainage and severity grading of the acute cholangitis.CONCLUSIONS: The methods and timing used for biliary drainage and severity of cholangitis are the major determinants of mortality and hospital stay in elderly and very elderly patients with acute cholangitis. Urgent successful ERCP is mandatory for favorable prognosis in these patients.Chan Sun Park Hee Seok Jeong Ki Bae Kim Joung-Ho Han Hee Bok Chae Sei Jin Youn Seon Mee Park 2016Hepatobiliary & Pancreatic Diseases International2016,15,6:9
17基于蒙特卡罗特征降维算法的小样本高光谱图像分类显示文摘高光谱图像分类是高光谱数据分析的重要研究内容.相关向量机由于不受梅西定理的限制、不需要设置惩罚因子等优势受到广泛关注.由于高光谱数据具有较高的维数,当训练样本较少时,高光谱数据的分类精度受到严重的影响.通常解决这种现象的办法是对原数据进行特征降维处理,然而多数基于filter模型的特征选择算法无法直接给出最优特征选择个数.为此提出利用蒙特卡罗随机实验可以对特征参量进行统计估计的特性,计算高光谱图像的最优降维特征数,并与相关向量机结合,对降维后的数据进行分类.实验结果表明了使用蒙特卡罗算法求解降维波段数的可靠性.相比较原始未降维数据,降维后的高光谱图像分类精度有较大幅度的提高.赵春晖 齐滨 Eunseog Youn 2013红外与毫米波学报2013,32,1:9
18Clinicopathologic factors influencing the accuracy of EUS for superficial esophageal carcinoma显示文摘AIM:To identify clinicopathologic factors influencing the accuracy of a high-frequency catheter probe endoscopic ultrasonography(EUS)for superficial esophageal carcinomas(SECs).METHODS:A total of 126 patients with endoscopically suspected SEC,who underwent EUS and curative treatment at Pusan National University Hospital during2005-2013,were enrolled.We reviewed the medical records of the 126 patients and compared EUS findings with histopathologic results according to clinicopathologic factors.RESULTS:A total of 114 lesions in 113 patients were included in the final analysis.The EUS assessment of tumor invasion depth was accurate in 78.9%(90/114)patients.Accuracy did not differ according to histologic type,tumor differentiation,tumor location,or macroscopic shape.However,accuracy significantly decreased for tumors≥3 cm in size(P=0.002).Overestimation and underestimation of the invasion depth occurred for 11(9.6%)and 13 lesions(11.4%),respectively.In multivariate analyses,tumor size≥3 cm was the only factor significantly associated with EUS accuracy(P=0.031),and was specifically associated with the underestimation of invasion depth.CONCLUSION:EUS using a high-frequency catheter probe generally provides highly accurate assessments of SEC invasion depth,but its accuracy decreases for tumors≥3 cm.Jung Im Jung Gwang Ha Kim Hoseok I Do Youn Park Tae Kyun Kim Young Hwa Cho Yong Wan Sung Mun Ki Choi Bong Eun Lee Geun Am Song 2014World Journal of Gastroenterology2014,20,20:9
19Risk of lymph node metastasis in mixed-type early gastric cancer determined by the extent of the poorly differentiated component显示文摘AIM: To predict the rate of lymph node(LN) metastasis in diffuse- and mixed-type early gastric cancers(EGC) for guidelines of the treatment.METHODS: We reviewed 550 cases of EGC withdiffuse- and mixed-type histology. We investigated the clinicopathological factors and histopathological components that influence the probability of LN metastasis, including sex, age, site, gross type, presence of ulceration, tumour size, depth of invasion, perineural invasion, lymphovascular invasion, and LN metastasis status. We reviewed all slides and estimated the proportions of each tumour component; pure diffuse type, mixed-predominantly diffuse type(diffuse > intestinal type), mixed-predominantly intestinal type(intestinal > diffuse type), and mixed diffuse = intestinal type. We calculated the extents of the respective components.RESULTS: LN metastasis was observed in 12.9%(71/550) of early gastric cancers cases [15/288 mucosal EGCs(5.2%) and 56/262 submucosal EGCs(21.4%)]. Of 550 cases, 302 were diffuse-type and 248 were mixed-type EGCs. Of 248 mixed-type EGCs, 163 were mixed-predominantly diffuse type, 82 were mixed-predominantly intestinal type, and 3 were mixed diffuse = intestinal type. Mixed-type cases with predominantly diffuse type histology showed a higher frequency of LN metastasis(20.2%) than cases of pure diffuse type(9.3%) and predominantly intestinal type(12.2%) histology. We measured the dimensions of each component(intestinal and diffuse type) to determine the association of the extent of each component with LN metastasis in mixed-type gastric carcinoma. The total tumour size and the extent of poorly differentiated components was associated with LN metastasis, while that of signet ring cell components was not.CONCLUSION: We recommend careful identification and quantitative evaluation of mixed-type early gastric cancer components after endoscopic resection to determine the intensity of the treatment.Chung-Su Hwang Sangjeong Ahn Bong-Eun Lee So-Jeong Lee Ahrong Kim Chang In Choi Dae Hwan Kim Tae-Yong Jeon Gwang Ha Kim Geum Am Song Do Youn Park 2016World Journal of Gastroenterology2016,22,15:8
20Preparation of Sandwich-like NiCo2O4/rGO/NiO Heterostructure on Nickel Foam for High-Performance Supercapacitor Electrodes显示文摘A kind of sandwich-like NiCo_2O_4/rGO/NiO heterostructure composite has been successfully anchored on nickel foam substrate via a three-step hydrothermal method with successive annealing treatment. The smart combination of NiCo_2O_4, reduced graphene oxide(rGO), and NiO nanostructure in the sandwich-like nano architecture shows a promising synergistic effect for supercapacitors with greatly enhanced electrochemical performance. For serving as supercapacitor electrode, the NiCo_2O_4/rGO/NiO heterostructure materials exhibit remarkable specific capacitance of 2644 mF cm^(-2)at current density of 1 mA cm^(-2),and excellent capacitance retentions of 97.5% after 3000 cycles. It is expected that the present heterostructure will be a promising electrode material for high-performance supercapacitors.Delong Li Youning Gong Miaosheng Wang Chunxu Pan 2017Nano-Micro Letters2017,9,2:8
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