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| 1 | Clinicopathological features of alpha-fetoprotein producing early gastric cancer with enteroblastic differentiation显示文摘AIM To investigate clinicopathological features of early stage gastric cancer with enteroblastic differentiation(GCED).METHODS We retrospectively investigated data on 6 cases of early stage GCED and 186 cases of early stage conventional gastric cancer(CGC: well or moderately differentiated adenocarcinoma) who underwent endoscopic submucosal dissection or endoscopic mucosal resection from September 2011 to February 2015 in our hospital.GCED was defined as a tumor having a primitive intestine-like structure composed of cuboidal or columnar cells with clear cytoplasm and immunohistochemical positivity for either alpha-fetoprotein, Glypican 3 or SALL4. The following were compared between GCED and CGC: age, gender, location and size of tumor, macroscopic type, ulceration, depth of invasion, lymphatic and venous invasion, positive horizontal and vertical margin, curative resection rate.RESULTS Six cases(5 males, 1 female; mean age 75.7 years; 6 lesions) of early gastric cancer with a GCED component and 186 cases(139 males, 47 females; mean age 72.7 years; 209 lesions) of early stage CGC were investigated. Mean tumor diameters were similar but rates of submucosal invasion, lymphatic invasion, venous invasion, and non-curative resection were higher in GCED than CGC(66.6% vs 11.4%, 33.3% vs 2.3%, 66.6% vs 0.4%, 83.3% vs 11% respectively, P < 0.01). Deep submucosal invasion was not revealed endoscopically or by preoperative biopsy. Histologically, in GCED the superficial mucosal layer was covered with a CGC component. The GCED component tended to exist in the deeper part of the mucosa to the submucosa by lymphatic and/or venous invasion, without severe stromal reaction. In addition, Glypican 3 was the most sensitive marker for GCED(positivity, 83.3%), immunohistochemically.CONCLUSION Even in the early stage GCED has high malignant potential, and preoperative diagnosis is considered difficult. Endoscopists and pathologists should know the clinicopathological features of this highly malignant type of cancer. | Kohei Matsumoto Hiroya Ueyama Kenshi Matsumoto Yoichi Akazawa Hiroyuki Komori Tsutomu Takeda Takashi Murakami Daisuke Asaoka Mariko Hojo Natsumi Tomita Akihito Nagahara Yoshiaki Kajiyama Takashi Yao Sumio Watanabe | 2016 | World Journal of Gastroenterology2016，22，36： | 20 |
| 2 | Branched-chain amino acid treatment before transcatheter arterial chemoembolization for hepatocellular carcinoma显示文摘AIM:To examine the significance of branched-chain amino acid (BCAA) treatment before transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma (HCC).METHODS:This study included 99 patients who underwent TACE therapy for HCC at our hospital and were followed up without treatment for at least 6 mo between January 2004 and January 2010.They were divided into 2 groups:those receiving BCAA granules (n=40) or regular diet (n=59,control).Data obtained were retrospectively analyzed (prior to TACE,and 1 wk,1,3,and 6 mo after TACE) in terms of nutritional condition and clinical laboratory parameters (serum albumin level and Child-Pugh score),both of which are determinants of hepatic functional reserve.RESULTS:The BCAA group comprised 27 males and 13 females with a mean age of 69.9 ± 8.8 years.The patients of the BCAA group were classified as follows:Child-Pugh A/B/C in 22/15/3 patients,and Stage Ⅱ/Ⅲ /ⅣA HCC in 12/23/5 patients,respectively.The controlgroup comprised 32 males and 27 females with a mean age of 73.2 ± 10.1 years.In the control group,9 patients had chronic hepatitis,Child-Pugh A/B/C in 39/10/1 patients,and StageⅠ/Ⅱ/Ⅲ/ⅣA HCC in 1/11/35/12 patients,respectively.Overall,both serum albumin level and Child-Pugh score improved significantly in the BCAA group as compared with the control 3 and 6 mo after TACE (P < 0.05).Further analysis was performed by the following categorization:(1) child-Pugh classification;(2) liver cirrhosis subgroup with a serum albumin level > 3.5 g/dL;and (3) epirubicin dose.A similar trend indicating a significant improvement of all variables in the BCAA group was noted (P < 0.05).CONCLUSION:Treatment with BCAA granules in patients who have undergone TACE for HCC is considered useful to maintain their hepatic functional reserve. | Hiroki Nishikawa Yukio Osaki Tadashi Inuzuka Haruhiko Takeda Jun Nakajima Fumihiro Matsuda Shinichiro Henmi Azusa Sakamoto Tetsuro Ishikawa Sumio Saito Ryuichi Kita Toru Kimura | 2012 | World Journal of Gastroenterology2012，18，12： | 16 |
| 3 | Decreased levels of plasma adiponectin associated with increased risk of colorectal cancer显示文摘AIM:To investigate the association between adiponectin levels and risk of colorectal adenoma and cancer (early and advanced).METHODS: A cross-sectional study in a cohort of hospital-based patients was conducted between January 2004 and March 2006 at Yamagata University Hospital. Male subjects, who had colorectal tumors detected by endoscopic examination, were enrolled according to inclusion and exclusion criteria. Based on the T factor of the TNM system, intraepithelial carcinoma and submucosally invasive carcinoma were def ined as early cancer, and invasion into the muscularis propria or deeper was defined as advanced cancer. The plasma levels of glucose, insulin, total cholesterol, triglyceride, high sensitivity C-reactive protein, insulin like growth factor (IGF)-1, IGF binding protein-3, adiponectin, leptin, and resistin were measured. Each factor level was designated low or high, and the risk of adenoma or cancer was estimated by univariate and multivariate logistic regression analysis.RESULTS: We enrolled 124 male subjects (47 with adenoma, 34 with early cancer, 17 with advanced cancer, and 26 without tumors as controls). In patients with adenoma, high triglyceride and low adiponectin were associated with a significant increase in the odds ratio (OR) by univariate analysis. Only a low adiponectin level was related to increased adenoma risk, with an adjusted OR for low level (<11 μg/mL) to high (≥11 μg/mL) of 5.762 (95% confidence interval (CI):1.683-19.739, P=0.005). In the patients with early cancer, high body mass index, high triglyceride, and low adiponectin were associated with a significant increase in OR in univariate analysis. Imultivariate analysis, only low adiponectin was significantly associated with early cancer, with an adjusted OR of 4.495 (95% CI:1.090-18.528, P=0.038). However, in patients with advanced cancer, low adiponectin was not recognized as a significant risk factor for advanced cancer.CONCLUSION: A decreased level of adiponectin is strongly associated with an increased risk of colorectal adenoma and early cancer. These data call for further investigation, including a controlled prospective study. | Sayaka Otake Hiroaki Takeda Shoichiro Fujishima Tadahisa Fukui Tomohiko Orii Takeshi Sato Yu Sasaki Shoichi Nishise Sumio Kawata | 2010 | World Journal of Gastroenterology2010，16，10： | 14 |
| 4 | 近液相线挤压铸造工艺对ADC12铝合金支架显微组织和力学性能的影响显示文摘以ADC12铝合金为原料,采用近液相线挤压铸造生产汽车铝合金支架,研究近液相线挤压铸造技术工艺参数对汽车承力件铝合金支架组织及力学性能的影响。结果表明:近液相线挤压铸造可获得均匀细小的球状组织。在595到625℃的浇注温度范围内,球状组织逐渐长大为蔷薇状晶及树枝晶,球状系数降低,晶粒尺寸升高,抗拉强度及伸长率均有所降低。在断口分析中,韧窝的数量减少,解理面的数量增多;随着压强由90 MPa上升到180 MPa,球状晶生长时间逐渐减少,最后以球状晶形式存在,球状系数升高,晶粒尺寸减小,抗拉强度及伸长率逐渐升高;随着保压时间从10 s延长到25 s,抗拉强度及伸长率有所增加。近液相线挤压铸造的最佳工艺为:浇注温度为605℃、压力为150 MPa、保压时间为20 s。由于铝液的流动,球状晶长大成孪生的蔷薇状晶。 | 王绍著 赵密 胡茂良 吉泽升 李欣 王云龙 Sumio SUGIYAMA Jun YANAGIMOTO | 2015 | 中国有色金属学报2015，25，6： | 14 |
| 5 | Computational Cavitation Flows at Inception and Light Stages on an Axial-Flow Pump Blade and in a Cage-Guided Control Valve显示文摘在轴流动的泵片附近并且在一个高压力笼子类型阀门内导致的成穴流动被二维的不稳定的海军司烧分析与水泡动力学的最简单的处理模仿。液体作为水和蒸汽原子核的同类的驱散的混合的连续统被假定。分析被瞄准特别在成穴开始的舞台在水泡的出生和倒塌期间与高振幅压力变化捕获短暂舞台。由泵片分析,地压力在是中等的,开始的成穴数字和发达成穴的地点被发现在在高发生和否定发生之间的一个宽流动范围同意试验性的结果。在阀门流动分析, 5MPa 的水压力在被归结为 2MPa,压力变化对在蒸汽压力之间的水泡倒塌作出回应比 1 KPa 和极端压力降低高,比 104, KPa 通过稳定的计算被捕获。到阀门塞子的开始水泡和压力力量的地点被发现与各自的试验性的特征同意很好。 | Sumio SAITO MasahiroSHIBATA HideoFUKAE Eisuke OUTA | 2007 | Journal of Thermal Science2007，16，4： | 12 |
| 6 | Diagnosis of mild chronic pancreatitis (Cambridge classification):Comparative study using secretin injection-magnetic resonance cholangiopancreatography and endoscopic retrograde pancreatography显示文摘AIM:To investigate the usefulness of secretin injection-MRCP for the diagnosis of mild chronic pancreatitis. METHODS:Sixteen patients having mild chronic pancreatitis according to the Cambridge classification and 12 control subjects with no abnormal findings on the pancreatogram were examined for the diagnostic accuracy of secretin injection-MRCP regarding abnormal branch pancreatic ducts associated with mild chronic pancreatitis (Cambridge Classification), using endoscopic retrograde cholangiopancreatography (ERCP) for comparison. RESULTS:The sensitivity and specificity for abnormal branch pancreatic ducts determined by two reviewers were respectively 55%-63% and 75%-83% in the head, 57%-64% and 82%-83% in the body, and 44%-44% and 72%-76% in the tail of the pancreas. The sensitivity and specificity for mild chronic pancreatitis were 56%-63% and 92%-92%, respectively. Interobserver agreement (κ statistics) concerning the diagnosis of an abnormal branch pancreatic duct and of mild chronic pancreatitis was good to excellent. CONCLUSION:Secretin injection-MRCP might be useful for the diagnosis of mild chronic pancreatitis. | Masafumi Suyama Yoshihiro Kubokawa Sumio Watanabe | 2008 | World Journal of Gastroenterology2008，14，8： | 11 |
| 7 | Does Helicobacter pylori eradication therapy for peptic ulcer prevent gastric cancer?显示文摘AIM:To investigate the effects of Helicobacter pylori (H pylori)eradication therapy for treatment of peptic ulcer on the incidence of gastric cancer. METHODS:A multicenter prospective cohort study was conducted between November 2000 and December 2007 in Yamagata Prefecture,Japan.The study included patients with H pylori-positive peptic ulcer who decided themselves whether to receive H pylori eradication(eradication group)or conventional antacid therapy(non-eradication group).Incidence of gastric cancer in the two groups was determined based on the results of annual endoscopy and questionnaire surveys,as well as Yamagata Prefectural Cancer Registry data,and was compared between the two groups and by results of H pylori therapy.RESULTS:A total of 4133 patients aged between 13 and 91 years(mean 52.9 years)were registered,and 56 cases of gastric cancer were identified over a mean follow-up of 5.6 years.The sex-and age-adjusted incidence ratio of gastric cancer in the eradication group, as compared with the non-eradication group,was 0.58 (95%CI:0.28-1.19)and ratios by follow-up period(<1 year,1-3 years,>3 years)were 1.16(0.27-5.00),0.50 (0.17-1.49),and 0.34(0.09-1.28),respectively.Longer follow-up tended to be associated with better prevention of gastric cancer,although not to a significant extent.No significant difference in incidence of gastric cancer was observed between patients with successful eradication therapy(32/2451 patients,1.31%)and those with treatment failure(11/639 patients,1.72%).Among patients with duodenal ulcer,which is known to be more prevalent in younger individuals,the incidence of gastric cancer was significantly less in those with successful eradication therapy(2/845 patients,0.24%)than in those with treatment failure(3/216 patients,1.39%). CONCLUSION:H pylori eradication therapy for peptic ulcer patients with a mean age of 52.9 years at registration did not significantly decrease the incidence of gastric cancer. | Katsuhiro Mabe Mikako Takahashi Haruhumi Oizumi Hideaki Tsukuma Akiko Shibata Kazutoshi Fukase Toru Matsuda Hiroaki Takeda Sumio Kawata | 2009 | World Journal of Gastroenterology2009，15，34： | 10 |
| 8 | MUC5AC/β-catenin expression and KRAS gene alteration in laterally spreading colorectal tumors显示文摘AIM:To clarify differences in mucin phenotype, prolif-erative activity and oncogenetic alteration among subtypes of colorectal laterally spreading tumor (LST). METHODS:LSTs, defined as superficial elevated lesions greater than 10 mm in diameter with a low vertical axis, were macroscopically classified into two subtypes:(1) a granular type (Gr-LST) composed of superficially spreading aggregates of nodules forming a flat-based lesion with a granulonodular and uneven surface; and (2) a non-granular type (NGr-LST) with a flat smooth surface and an absence of granulonodular formation. A total of 69 LSTs, comprising 36 Gr-LSTs and 33 NGr-LSTs, were immunohistochemically stained with MUC2, MUC5AC,MUC6, CD10 (markers of gastrointestinal cell lineage), p53, β-catenin and Ki-67 antibodies, and examined for alteration in exon 1 of v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS) and exon 15 of v-raf murine sarcoma viral oncogene homologue B1 (BRAF) by poly-merase chain reaction followed by direct sequencing. RESULTS:Histologically, 15 Gr-LST samples were adenomas with low-grade dysplasia (LGD), 12 were high-grade dysplasia (HGD) and 9 were adenocarcinomas invading the submucosa (INV), while 12 NGr-LSTs demonstrated LGD, 14 HGD and 7 INV. In the proximal colon, MUC5AC expression was significantly higher in the Gr-type than the NGr-type. MUC6 was expressed only in NGr-LST. MUC2 or CD10 did not differ. P53 expression demonstrated a significant stepwise increment in progression through LGD-HGD-INV with both types of LST. Nuclear β-catenin expression was significantly higher in the NGr-type. Ki-67 expression was signifi-cantly higher in the Gr-type in the lower one third zone of the tumor. In proximal, but not distal colon tumors, the incidence of KRAS provided mutation was signifi-cantly higher in the Gr-type harboring a specific mutational pattern (G12V). BRAF mutations (V600E) were detected only in two Gr-LSTs. CONCLUSION:The two subtypes of LST, especially in the proximal colon, have differing phenotypes of gastrointestinal cell lineage, proliferation and activation of Wnt/β-catenin or RAS/RAF/extracellular signal-regulated kinase signaling. | Kosaburo Nakae Hiroyuki Mitomi Tsuyoshi Saito Michiko Takahashi Takashi Morimoto Yasuhiro Hidaka Naoto Sakamoto Takashi Yao Sumio Watanabe | 2012 | World Journal of Gastroenterology2012，18，39： | 8 |
| 9 | Successful outcomes of EMR-L with 3D-EUS for rectal carcinoids compared with historical controls显示文摘AIM: To assess the results of endoscopic mucosal re-section with a ligation device (EMR-L) combined with three dimensional endoscopic ultrasonography (3D-EUS) using an ultrasonic probe for rectal carcinoids. In addition, diagnosis of the depth and size of lesions by EUS was evaluated. METHODS: Between January 2003 and March 2007, 20 patients underwent EMR-L with 3D-EUS using an ultrasonic probe (group A). 3D-EUS was combined with EMR-L at the time of injection of sterile physiological saline into the submucosal layer. For comparison, 14 rectal carcinoids that had been treated by EMR-L with-out 3D-EUS between April 1998 and December 2002 were evaluated as historical controls (group B). EUS was conducted for all of the patients before treatment to evaluate tumor diameter and depth of invasion. The percentage of complete resection and the verti-cal resection margin were compared between the two groups. RESULTS: The depth of invasion upon histopathologi-cal examination was in complete agreement with the pre-operative fi ndings by EUS. The tumor diameter de-termined by EUS approximated that found in the tissue samples. There were no signifi cant differences in the gender, tumor sites or tumor diameters between the two groups. The rate of complete resection for groups A and B was 100% and 71%, respectively (P < 0.05). The vertical resection margin of group A was longer than that of group B. CONCLUSION: EMR-L is effective as an endoscopictreatment for rectal carcinoids. In combination with 3D-EUS, safe and complete resection is further as-sured. | Tsuyoshi Abe Tadayoshi Kakemura Sumio Fujinuma Iruru Maetani | 2008 | World Journal of Gastroenterology2008，14，25： | 7 |
| 10 | Endoscopic submucosal dissection for early esophageal neoplasms using the stag beetle knife显示文摘AIM To determine short-and long-term outcomes of endoscopic submucosal dissection(ESD) using the stag beetle(SB) knife, a scissor-shaped device.METHODS Seventy consecutive patients with 96 early esophageal neoplasms, who underwent ESD using a SB knife at Kure Medical Center and Chugoku Cancer Center, Japan, between April 2010 and August 2016, were retrospectively evaluated. Clinicopathological characteristics of lesions and procedural adverse events were assessed. Therapeutic success was evaluated on the basis of en bloc, histologically complete, and curative or non-curative resection rates. Overall and tumor-specific survival, local or distant recurrence, and 3-and 5-year cumulative overall metachronous cancer rates were also assessed.RESULTS Eligible patients had dysplasia/intraepithelial neoplasia(22%) or early cancers(squamous cell carcinoma, 78%). The median procedural time was 60 min and on average, the lesions measured 24 mm in diameter, yielding 33-mm tissue defects. The en bloc resection rate was 100%, with 95% and 81% of dissections deemed histologically complete and curative, respectively. All procedures were completed without accidental incisions/perforations or delayed bleeding. During follow-up(mean, 35 ± 23 mo), no local recurrences or metastases were observed. The 3-and 5-year survival rates were 83% and 70%, respectively, with corresponding rates of 85% and 75% for curative resections and 74% and 49% for noncurative resections. The 3-and 5-year cumulative rates of metachronous cancer in the patients with curative resections were 14% and 26%, respectively.CONCLUSION ESD procedures using the SB knife are feasible, safe, and effective for treating early esophageal neoplasms, yielding favorable short-and long-term outcomes. | Toshio Kuwai Toshiki Yamaguchi Hiroki Imagawa Ryoichi Miura Yuki Sumida Takeshi Takasago Yuki Miyasako Tomoyuki Nishimura Sumio Iio Atsushi Yamaguchi Hirotaka Kouno Hiroshi Kohno Sauid Ishaq | 2018 | World Journal of Gastroenterology2018，24，15： | 7 |
| 11 | Effects of heat treatment on the microstructures and mechanical properties of a new type of nitrogen-containing die steel显示文摘Nitrogen can increase the strength of steels without weakening the toughness and improve the corrosion resistance at the same time. Compared with conventional nitrogen-free die steels, a new type of nitrogen-containing die steel was developed with many superior properties, such as high strength, high hardness, and good toughness. This paper focused on the effects of heat treatment on the microstruc-tures and mechanical properties of the new type of nitrogen-containing die steel, which were investigated by the optimized deformation process and heat treatment. Isothermal spheroidal annealing and high-temperature quenching as well as high-temperature tempering were ap-plied in the experiment by means of an orthogonal method after the steel was multiply forged. The mechanical properties of nitro-gen-containing die steel forgings are better than the standard of NADCA #207-2003. | Jing-yuan Li Peng Zhao Jun Yanagimoto Sumio Sugiyama Yu-lai Chen | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，6： | 6 |
| 12 | Risk factors for perforation during endoscopic retrograde cholangiopancreatography in post-reconstruction intestinal tract显示文摘BACKGROUND Endoscopic retrograde cholangiopancreatography(ERCP) in patients with surgically altered anatomy has been a major challenge to gastrointestinal endoscopists with low success rates for reaching the target site as well as high complication rates. The knowledge of ERCP-related risk factors is important for reducing unexpected complications.AIM To identify ERCP-related risk factors for perforation in patients with surgically altered anatomy.METHODS The medical records of 187 patients with surgically altered anatomy who underwent ERCP at our institution between April 2009 and December 2017 were retrospectively reviewed. An analysis of patient data, including age, sex, type of reconstruction, cause of surgery, aim of ERCP, success rate of reaching target site,success rate of procedure, adverse events, type of scope, time to reach the target site, and duration of procedure, was performed. In patients with Billroth-Ⅱ reconstruction, additional potential risk factors were the shape of the inserted scope and whether the anastomosis was antecolic or retrocolic.RESULTS All patients(n = 187) had surgical anatomy, such as Billroth-Ⅰ(n = 22), Billroth-Ⅱ(n = 33), Roux-en-Y(n = 54), Child, or Whipple reconstruction(n = 75). ERCP was performed for biliary drainage in 43 cases(23%), stone removal in 29 cases(16%),and stricture dilation of anastomosis in 59 cases(32%). The scope was unable to reach the target site in 17 cases(9%), and an aimed procedure could not be accomplished in 54 cases(29%). Adverse events were pancreatitis(3%),hyperamylasemia(10%), cholangitis(6%), cholestasis(4%), excessive sedation(1%), perforation(2%), and others(3%). Perforation occurred in three cases, all of which were in patients with Billroth-Ⅱ reconstruction; in these patients, further analysis revealed loop-shaped insertion of the scope to be a significant risk for perforation(P = 0.01).CONCLUSION Risk factors for perforation during ERCP in patients with surgically altered anatomy were Billroth-Ⅱ reconstruction and looping of the scope during BillrothⅡ procedure. | Shinichi Takano Mitsuharu Fukasawa Hiroko Shindo Ei Takahashi Sumio Hirose Yoshimitsu Fukasawa Satoshi Kawakami Hiroshi Hayakawa Hiroshi Yokomichi Makoto Kadokura Tadashi Sato Nobuyuki Enomoto | 2019 | World Journal of Clinical Cases2019，7，1： | 6 |
| 13 | Factors associated with incomplete colonoscopy at a Japanese academic hospital显示文摘AIM:To evaluate significant risk factors for incomplete colonoscopy at a Japanese academic hospital.METHODS:A total of 11812 consecutive Japanese people were identified who underwent a colonoscopy at an academic hospital.A multiple logistic regression model was used to evaluate retrospectively the significant risk factors for incomplete colonoscopy.RESULTS:The cecal intubation rate was 95.0%.By univariate analysis,age,female sex,poor bowel cleansing,and a history of abdominal or pelvic surgery were significant risk factors for incomplete colonoscopy(P<0.001).Moreover,age-and sex-adjusted analysis showed that significant risk factors for incomplete colonoscopy were female sex(OR=1.38,95%CI:1.17-1.64,P=0.0002),age≥60 years old(OR=1.44,95%CI:1.22-1.71,P<0.0001),a history of prior abdominal or pelvic surgery(OR=1.55,95%CI:1.28-1.86,P<0.0001),poor bowel cleansing(OR=4.64,95%CI:3.69-5.84,P<0.0001),and inflammatory bowel disease(IBD)(OR=1.48,95%CI:1.13-1.95,P=0.0048).In Japanese men,by age-adjusted analysis,IBD(OR=1.69,95%CI:1.18-2.43,P=0.005)was an independent risk factor for incomplete colonoscopy.CONCLUSION:Several characteristics in the Japanese population were identified that could predict technical difficulty with colonoscopy. | Shigeo Koido Toshifumi Ohkusa Kosaburo Nakae Tetsuji Yokoyama Tomoyoshi Shibuya Naoto Sakamoto Kan Uchiyama Hiroshi Arakawa Taro Osada Akihito Nagahara Sumio Watanabe Hisao Tajiri | 2014 | World Journal of Gastroenterology2014，20，22： | 6 |
| 14 | Autofluorescence imaging endoscopy for identifi cation and assessment of inflammatory ulcerative colitis显示文摘AIM:To validate the clinical relevance of autofluores-cence imaging(AFI)endoscopy for the assessment of inflammatory ulcerative colitis(UC).METHODS:A total of 572 endoscopic images were se-lected from 42 UC patients:286 taken with white light imaging(WLI)and 286 with AFI from the same sites.WLI images were assessed for overall mucosal inflammation according to Mayo endoscopic subscore(MES),and for seven characteristic endoscopic features.Likewise,AFI photographs were scored according to relative abundance of red,green and blue color com-ponents within each image based on an RGB additive color model.WLI and AFI endoscopic scores from the same sites were compared.Histological evaluation of biopsies was according to the Riley Index.RESULTS:Relative to red(r=0.52,P<0.01)or blue(r=0.56,P<0.01)color component,the green color component of AFI(r=-0.62,P<0.01)corresponded more closely with mucosal inflammation sites.There were signif icant differences in green color components between MES-0(0.396±0.043)and MES-1(0.340± 0.035)(P<0.01),and between MES-1 and ≥ MES-2(0.318±0.037)(P<0.01).The WLI scores for 'vascu-lar patterns'(r=-0.65,P<0.01),'edema'(r=-0.62,P<0.01),histology scores for 'polymorphonuclear cells in the lamina propria'(r=-0.51,P<0.01)and 'crypt architectural irregularities'(r=-0.51,P<0.01)showed correlation with the green color component of AFI.There were significant differences in green color components between limited(0.399± 0.042)and extensive(0.375±0.044)(P=0.014)polymorpho-nuclear cell inf iltration within MES-0.As the severity of the mucosal inflammation increased,the green color component of AFI decreased.The AFI green color com-ponent was well correlated with the characteristic en-doscopic and histological inflammatory features of UC.CONCLUSION:AFI has application in detecting inflammatory lesions,including microscopic activity in the co-lonic mucosa of UC patients,based on the green color component of images. | Taro Osada Atsushi Arakawa Naoto Sakamoto Hiroya Ueyama Tomoyoshi Shibuya Tatsuo Ogihara Takashi Yao Sumio Watanabe | 2011 | World Journal of Gastroenterology2011，17，46： | 5 |
| 15 | Efficacy of the revised Vienna Classification for diagnosing colorectal epithelial neoplasias显示文摘AIM:To prospectively investigate the effi cacy of the revised Vienna Classifi cation for diagnosing colorectal epithelial neoplastic lesions in cold biopsy specimens.METHODS:Patients were selected for inclusion if they had colorectal epithelial lesions that were not considered suitable for direct endoscopic resection.These included colorectal polyps ≥ 10 mm and lesions suspected of being carcinomas capable of invading the colorectal submucosa or beyond,including strictures,based on the cold biopsies obtained from each lesion prior to resection.We investigated the relationship between diagnoses based on cold biopsy samples using the revised Vienna Classification and resected specimens of the same lesions,and the therapeutic implications of diagnoses made using the revised Vienna Classification.The same cold biopsy specimens were also examined using the Japanese Group Classifi cation guidelines,and compared with the resected specimens of the same lesions for reference.RESULTS:A total of 179 lesions were identified.The sensitivity,specificity,positive and negative predictive values of the revised Vienna Classification for distinguishing between intramucosal lesions and submucosal invasive carcinomas in cold biopsy specimens was 22.2%,100%,100%,and 71.4%,respectively,and for distinguishing between intramucosal lesions and those invading the submucosa or beyond was 59.7%,100%,100%,and 37.6%,respectively.The sensitivity,specificity,positive and negative predictive values of the Japanese Group Classification for distinguishing between intramucosal lesions and submucosal invasive carcinomas in cold biopsy specimens was 83.3%,91.4%,83.3%,and 91.4%,respectively,and for distinguishing between intramucosal lesions and those invading the submucosa or beyond was 95.1%,91.4%,97.9%,and 82.1%,respectively.A total of 137 of 144 carcinomas that had invaded the submucosa or beyond and three high-grade intraepithelial neoplasias were diagnosed as 'carcinoma' using the Japanese Group Classif ication system.CONCLUSION:The revised Vienna Classifi cation for cold biopsy specimens has high positive predictive value in the diagnosis of colorectal carcinoma invasive to the submucosa or beyond. | Kenji Tominaga Sumio Fujinuma Takuro Endo Yoshihisa Saida Kei Takahashi Iruru Maetani | 2009 | World Journal of Gastroenterology2009，15，19： | 5 |
| 16 | Modeling the potential distribution of shallow-seated landslides using the weights of evidence method and a logistic regression model:a case study of the Sabae Area, Japan显示文摘A number of statistical methods are typically used to effectively predict potential landslide distributions.In this study two multivariate statistical analysis methods were used (weights of evidence and logistic regression) to predict the potential distribution of shallow-seated landslides in the Kamikawachi area of Sabae City,Fukui Prefecture,Japan.First,the dependent variable (shallow-seated landslides) was divided into presence and absence,and the independent variables (environmental factors such as slope and altitude) were categorized according to their characteristics.Then,using the weights of evidence (WE) method,the weights of pairs comprising presence ( w+ (i)) or absence ( w?(i)),and the contrast values for each category of independent variable (evidence),were calculated.Using the method that integrated the weights of evidence method and a logistic regression model,score values were calculated for each category of independent variable.Based on these contrast values,three models were selected to sum the score values of every gird in the study area.According to a receiver operating characteristic curve analysis (ROC),model 2 yielded the best fit for predicting the potential distribution of shallow-seated landslide hazards,with 89% correctness and a 54.5% hit ratio when the occurrence probability (OP) of landslides was 70%.The model was tested using data from an area close to the study region,and showed 94% correctness and a hit ratio of 45.7% when the OP of landslides was 70%.Finally,the potential distribution of shallow-seated landslides,based on the OP,was mapped using a geographical information system. | Ru-Hua SONG Daimaru HIROMU Abe KAZUTOKI Kurokawa USIO Matsuura SUMIO | 2008 | International Journal of Sediment Research2008，23，2： | 5 |
| 17 | Interplay of neuropilin-1 and semaphorin 3A after partial hepatectomy in rats显示文摘AIM:To elucidate the role of neuropilin-1(Nrp-1) and semaphorin 3A(Sema3A) in sinusoidal remodeling during liver regeneration in rats.METHODS:Male Wistar/ST rats at 7 wk of age,weighing about 200 g,were used for all animal experiments.In vivo,at 24,48,72,96,144 and 192 h after twothirds partial hepatectomy(PHx),the remnant livers were removed.Liver tissues were immunohistochemically stained for Nrp-1,Sema3A and SE-1,a liver sinusoidal endothelial cell(SEC) marker.Total RNA of the liver tissue was extracted and reversely transcribed into cDNA.The mRNA expression of Sema3A was analyzed by quantitative real-time polymerase chain reaction and normalized to that of ribosomal protein S18.In vitro,SECs were isolated from rat liver and cultured in endothelial growth medium containing 20 ng/mL vascular endothelial cell growth factor.Migration of SECs in primary culture was assessed by cell transwell assay with or without recombinant Sema3A.Apoptotic cells were determined by a terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling method.RESULTS:In vitro,immunohistochemistry study revealed that Sema3A and Nrp-1 were constitutively expressed in hepatocytes and SECs,respectively,in normal rat liver tissues.Nrp-1 expression in SECs was quantified by the percentage of immunostained area with antiNrp-1 antibody in relation to the area stained with SE-1.Between 24 h and 96 h following resection of liver,Nrp-1 expression in SECs was transiently increased.Compared with the baseline(5.2% ± 0.1%),Nrp-1 expression in SECs significantly increased at 24 h(17.3% ± 0.7%,P < 0.05),48 h(39.1% ± 0.6%,P < 0.01),72 h(46.9% ± 4.5%,P < 0.01) and 96 h(29.9% ± 3.8%,P < 0.01) after PHx,then returned to the basal level at termination of liver regeneration.Interestingly,the expression of Sema3A was inversely associated with that of Nrp-1 in liver after PHx.Sema3A mRNA expression was significantly reduced by about 75% over the period 24-144 h after PHx(P < 0.05),and returned to basal levels at 192 h after PHx.In vitro,SECs isolated from rats after PHx(PHx-SECs) were observed to migrate to the lower chamber of the cell transwell system after incubation for 24 h,but not cells from normal rats(CONT-SECs),indicating that mobility of PHx-SECs increases as compared with that of CONT-SECs.Moreover,recombinant Sema3A significantly attenuated migration in PHx-SECs in primary culture(vehicle-treated 100% ± 7.9% vs Sema3A-treated 42.6% ± 5.4%,P < 0.01),but not in CONT-SECs.Compared with CONTSECs,the apoptotic rate of PHx-SECs decreased by 78.3%(P < 0.05).There was no difference in apoptosis between CONT-SECs that were treated with vehicle and Sema3A.However,in PHx-SECs,apoptosis was induced by the presence of 5 nmol Sema3A for 24 h(vehicle-treated 21.7% ± 7.6% vs Sema3A-treated 104.3% ± 8.9%,P < 0.05).In addition,immunohistochemistry confirmed the increased expression of Nrp-1 in PHx-SECs,while it was noted to a lesser extent in CONT-SECs.CONCLUSION:The interplay of Nrp-1 and Sema3A shown in our results may lead to a better understanding of interaction between sinusoidal remodeling and SECs during liver regeneration. | Ling Fu Tsuneo Kitamura Kazuhisa Iwabuchi Syozo Ichinose Mitsuaki Yanagida Hideoki Ogawa Sumio Watanabe Toshihide Maruyama Masafumi Suyama Kenji Takamori | 2012 | World Journal of Gastroenterology2012，18，36： | 5 |
| 18 | A white opaque substance-positive gastric hyperplastic polyp with dysplasia显示文摘The endoscopic findings of gastric hyperplastic polyps (HPs) with dysplasia have not been well-defined, and the clinical significance of these lesions, including their malignant potential, is unclear. In this report, we describe a case of a white opaque substance (WOS)positive gastric HP with dysplasia. A 76-year-old woman was referred to our hospital for endoscopic resection of a gastric HP. Upper endoscopy revealed a 25-mm whitish and reddish polypoid lesion on the greater curvature in the lower third of the stomach. The whitish part was diagnosed as a WOS using conventional and magnifying endoscopy with narrow band imaging. An examination of the biopsy specimen indicated that the lesion was a typical gastric HP. However, because of its color and the presence of a WOS, we suspected that this lesion was an atypical gastric HP. Therefore, we performed a polypectomy. Histopathologically, diffuse lowto high-grade dysplasia was found on the surface of the polyp. We performed immunohistochemical staining using a monoclonal antibody specific for adipophilin as a marker of lipid droplets (LDs). LDs were detected in approximately all of the neoplastic cells, especially in the surface epithelium of the intervening apical parts and were located in the subnuclear cytoplasm of the neoplastic cells. According to endoscopic and histopathological findings, the WOS-positive epithelium indicated dysplasia of the gastrointestinal phenotype, which could absorb lipids. The presence of a WOS in a gastric HP may be considered an endoscopic finding that is predictive of the neoplastic transformation of a gastric HP. We suggest that a WOS-positive gastric HP should be resected endoscopically to investigate its neoplastic transformation. | Hiroya Ueyama Kenshi Matsumoto Akihito Nagahara Ryosuke Gushima Takuo Hayashi Takashi Yao Sumio Watanabe | 2013 | World Journal of Gastroenterology2013，19，26： | 4 |
| 19 | Multiple primary malignant neoplasms of three early cancer lesions: a case report显示文摘多重主要的恶意的瘤(MPMN ) 很少被报导,为这些病人给早诊断和合适的治疗是重要的。这里在上面的胃肠的道与伴随物三早阶段癌症损害报导了 62 岁的人的一个案例,所有哪个被内视镜检查法检测。第一是在在内视镜检查法下面的胃的尖部分的 llc 类型损害,它组织学地被证实是区分得好的 adenocarcinoma.The 病人经历了的 mucosal 为在内视镜的治疗的失败以后的损害的标准激进的 gastrectomy。另外的二个瘤在后续期间被观察并且被综合作为早阶段损害显示从内视镜检查法,内视镜的 ultrasonography,计算断层摄影术和活体检视的信息。一个人作为一个 hyperemic 补丁显示了(3cm 吗?? | ZHANG Wan-jun QIAN Xiao-ping SHI Yu PAN Wen-sheng XU Xiang YE Zai-yuan WU Liang-qin Takeshi Terai Nobuhiro Sato Sumio Watanabe | 2011 | Chinese Medical Journal2011，，8： | 4 |
| 20 | Peeling a giant ileal lipoma with endoscopic unroofing and submucosal dissection显示文摘Lipoma is relatively common in the colon but is less often in the small intestine. Most lipomas are incidentally detected at endoscopy and are usually small and asymptomatic. However, some of them can present with obstruction and/or intussusceptions. Surgical resection is commonly recommended to remove such significant lipomas with a limited pedicle and larger than 2 cm in size, as endoscopic resection may result in unfavorable complications such as intestinal perforations. We report a case of 62-year-old man presenting with hematochezia. Colonoscopy showed a submucosal tumor, about 50 mm in size, in the terminal ileum. A clinical diagnosis of lipoma was established based on the findings of colonoscopy and abdominal computed tomography (CT). As the patient complained of hematochezia and mild iron deficiency anemia associated with repeated tumor prolapse, we decided to remove his lipoma. Consequently, the lesion was completely removed en bloc . Although abdominal CT immediately after removal of the lesion showed a small amount of free air, conservative treatment was successfully carried out for the perforation. Histologically, the removed lesion was a lipoma. | Takashi Morimoto Kuang-I Fu Hironori Konuma Yuko Izumi Syujirou Matsuyama Kanako Ogura Akihisa Miyazaki Sumio Watanabe | 2010 | World Journal of Gastroenterology2010，16，13： | 4 |
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