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| 1 | Diagnosis and therapies for gastric non-invasive neoplasia显示文摘There has been a great discrepancy of pathological diagnosis for gastric non-invasive neoplasia/dysplasia between Japanese and western pathologists. In Japan, lesions that most western pathologists diagnose as dysplasia are often considered adenocarcinoma based on nuclear and structural atypia regardless of the presence of invasion. In the Vienna classification, gastric non-invasive intraepithelial neoplasia(NIN) weredivided into low grade and high grade(including intramucosal cancer of Japanese criteria). The diagnosis by both endoscopy and pathology of biopsy specimen is difficult. Recent advances of diagnostic modality such as magnified endoscopy and imaged enhanced endoscopy is expected to improve the diagnostic yield for NIN. There are two treatment strategies for NIN, observation and diagnostic therapy by endoscopic resection(ER). ER is acceptable because of its less invasiveness and high local control rate, on the other hand, cancer-developing rate of low-grade NIN is reported to be low. Therefore there is controversy for the treatment of gastric NIN. Prospective study based on unified pathological definition is required in the future. | Motohiko Kato | 2015 | World Journal of Gastroenterology2015，21，44： | 18 |
| 2 | Treatment strategy for gastric non-invasive intraepithelial neoplasia diagnosed by endoscopic biopsy显示文摘Treatment strategies,whether as follow-up or'total incisional biopsy'for gastric noninvasive intraepithelial neoplasia diagnosed by examination of an endoscopic forceps biopsy specimen,are controversial due to problems associated with the diagnostic accuracy of endoscopic forceps biopsy and questions about the safety and efficacy of endoscopic treatment.Based on the histological findings of the biopsy specimen,it is difficult to differentiate between reactive or regenerative changes,inflammation and neoplastic changes,intraepithelial and invasive tumors.Therefore,gastric neoplasia diagnosed as noninvasive intraepithelial often develop into invasive carcinoma during follow-up.Recent advances in endoscopic modalities and treatment devices,such as image-enhanced endoscopy and highfrequency generators,may make endoscopic treatment,such as endoscopic submucosal dissection(ESD),a therapeutic option for gastric intraepithelial neoplasia,including low-grade neoplasms.Future studies are required to evaluate whether ESD is a valid strategy for gastric intraepithelial neoplasm with regard to safety and cost effectiveness. | Tsutomu Nishida Shusaku Tsutsui Motohiko Kato Takuya Inoue Shunsuke Yamamoto Yoshito Hayashi Tomofumi Akasaka Takuya Yamada Shinichiro Shinzaki Hideki Iijima Masahiko Tsujii Tetsuo Takehara | 2011 | World Journal of Gastrointestinal Pathophysiology2011，2，6： | 18 |
| 3 | Comprehensive and innovative techniques for livertransplantation in rats: A surgical guide显示文摘AIM: To investigate our learning curves of orthotopic liver transplantation (OLT) in rats and the most important factor for successful surgery. METHODS: We describe the surgical procedures for our rat OLT model, and determined the operator learning curves. The various factors that contributed to successful surgery were determined. The most important surgical factors were evaluated between successful and unsuccessful surgeries.RESULTS: Learning curve data indicated that 50 cases were required for operator training to start a study. Operative time, blood loss, warm ischemic time, anhepatic phase, unstable systemic hemodynamic state, and body temperature after surgery significantly affected surgery success by univariate analysis, while the anhepatic phase was the most critical factor for success by multivariate analysis. CONCLUSION: OLT in rats is the only liver transplantation model that provides clinically relevant and reliable results. Shortened anhepatic phase is key to success in this model. | Tomohide Hori Justin H Nguyen Yasuhiro Ogura Toshiyuki Hata Shintaro Yagi Ann-Marie T Baine Norifumi Ohashi Christopher B Eckman Aimee R Herdt Hiroto Egawa Yasutsugu Takada Fumitaka Oike Seisuke Saka-moto Mureo Kasahara Kohei Ogawa Koichiro Hata Taku Iida Yukihide Yonekawa Lena Sibulesky Kagemasa Kuribayashi Takuma Kato Kanako Saito Mie Torii Naruhiko Sahara Naoko Kamo Tomoko Sahara Motohiko Yasutomi Shinji Uemoto | 2010 | World Journal of Gastroenterology2010，16，25： | 14 |
| 4 | Esophageal early basaloid squamous carcinoma with unusual narrowband imaging magnified endoscopy findings显示文摘Basaloid squamous carcinoma(BSC)is a rare variant of esophageal cancer.There are very few reports of'early'BSC.Here we report a case of early BSC with unusual findings by narrowband imaging magnified endoscopy(NBI-ME).A 70-year-old man with a middle thoracic esophageal tumor was referred to our hospital.White-light endoscopy revealed a reddish depressed lesion 5 mm in diameter having a subepithelial tumor-like prominence with a gentle rising slope.NBI-ME revealed irregular loop-shaped microvessels coexistent with thick irregularly branched non-looped vessels.Iodine staining revealed a pale brown lesion.We performed endoscopic submucosal dissection for diagnostic treatment.Histologic examination showed the proliferation of basal cell-like hyperchromatic tumor cells in the lamina propria and with slight invasion into the submucosa at a depth of 320μm.The tumor cells formed solid nests and microcystic structures,containing an Alcian blue-positive mucoid matrix.The surface was covered with squamous epithelium without cellular atypia.Thin vessels were observed in the intra-epithelial papilla and thick vessels were observed around the solid nests beneath the epithelium.Based on these findings together,we diagnosed the lesion as BSC.In this case,the NBI-ME findings differed from those of typical squamous cell carcinoma in that both non-invasive cancer-like irregular loop-shaped microvessels coexisted with massively invasive cancerlike thick non-looped vessels.We speculate that the looped and non-looped vessels observed by NBI-ME histologically corresponded to thin vessels in the intraepithelial papilla and thick vessels around the tumor nests,respectively.These NBI-ME findings might be a feature of early esophageal BSC. | Yugo Kai Motohiko Kato Yoshito Hayashi Tomofumi Akasaka Shinichiro Shinzaki Tsutomu Nishida Masahiko Tsujii Eiichi Morii Tetsuo Takehara | 2014 | World Journal of Gastroenterology2014，20，35： | 4 |
| 5 | Endoscopic submucosal dissection in early gastric cancer in elderly patients and comorbid conditions显示文摘The prognosis of early gastric cancer(EGC) is good if there is no concomitant lymph node metastasis. Therefore, the early detection of EGC is important to improve the prognosis of patients with gastric cancer. In Japan, 40% to 50% of all gastric cancers are EGC, and endoscopic submucosal dissection(ESD) is widely accepted as a local treatment for these lesions, particularly for large lesions that at one time were an indication for gastrectomy because of the difficulty of en-bloc resection. Consequently, this procedure can preserve the entire stomach and the patient's postoperative quality of life. ESD has become a general technique with improved procedures and devices, and has become the preferred treatment for EGC rather than gastrectomy. Therefore, ESD may demonstrate many advantages in patients who have several comorbidities, particularly elderly population, patients taking antithrombotic agents, or patients with chronic kidney disease, or liver cirrhosis. However, it is not yet clear whether patients with both EGC and comorbidities are feasible candidates for ESD and whether they would consequently be able to achieve a survival benefit after ESD. In this review, we discuss the clinical problems of ESD in patients with EGC and those comorbid conditions. | Tsutomu Nishida Motohiko Kato Toshiyuki Yoshio Tomofumi Akasaka Teppei Yoshioka Tomoki Michida Masashi Yamamoto Shiro Hayashi Yoshito Hayashi Masahiko Tsujii Tetsuo Takehara | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，5： | 4 |
| 6 | Endoscopic surveillance strategy after endoscopic resection for early gastric cancer显示文摘Early detection of early gastric cancer(EGC)is important to improve the prognosis of patients with gastric cancer.Recent advances in endoscopic modalities and treatment devices,such as image-enhanced endoscopy and high-frequency generators,may make endoscopic treatment,such as endoscopic submucosal dissection,a therapeutic option for gastric intraepithelial neoplasia.Consequently,short-term outcomes of endoscopic resection(ER)for EGC have improved.Therefore,surveillance with endoscopy after ER for EGC is becoming more important,but how to perform endoscopic surveillance after ER has not been established,even though the follow-up strategy for more advanced gastric cancer has been outlined.Therefore,a surveillance strategy for patients with EGC after ER is needed. | Tsutomu Nishida Masahiko Tsujii Motohiko Kato Yoshito Hayashi Tomofumi Akasaka Hideki Iijima Tetsuo Takehara | 2014 | World Journal of Gastrointestinal Pathophysiology2014，5，2： | 4 |
| 7 | Endoscopic removal of foreign bodies:A retrospective study in Japan显示文摘BACKGROUND The ingestion of foreign bodies(FBs)and food bolus impaction(FBI)in the digestive tract are commonly encountered clinical problems.Methods to handle such problems continue to evolve offering advantages,such as the avoidance of surgery,reduced cost,improved visualization,reduced morbidity,and high removal success rate.However,to date,no studies have evaluated the endoscopic management of FBs in Japan.AIM To elucidate level of safety and efficacy in the endoscopic management of FBs and FBI.METHODS A total of 215 procedures were performed at Keio University Hospital between November 2007 and August 2018.Data were collected from medical charts,and endoscopic details were collected from an endoscopic reporting system.Procedures performed with a flexible gastrointestinal endoscope were only taken into account.Patients who underwent a technique involving FB or FBI from the digestive tract were only included.Data on patient sex,patient age,outpatient,inpatient,FB type,FB location,procedure time,procedure type,removal device type,success,and technical complications were reviewed and analyzed retrospectively.RESULTS Among the 215 procedures,136(63.3%)were performed in old adults(≥60 years),180(83.7%)procedures were performed in outpatients.The most common type of FBs were press-through-pack(PTP)medications[72(33.5%)cases],FBI[47(21.9%)],Anisakis parasite(AP)[41(19.1%)cases].Most FBs were located in the esophagus[130(60.5%)cases]followed by the stomach[68(31.6%)cases].AP was commonly found in the stomach[39(57.4%)cases],and it was removed using biopsy forceps in 97.5%of the cases.The most common FBs according to anatomical location were PTP medications(40%)and dental prostheses(DP)(40%)in the laryngopharynx,PTP(48.5%)in the esophagus,AP(57.4%)in the stomach,DP(37.5%)in the small intestine and video capsule endoscopy device(75%)in the colon.A transparent cap with grasping forceps was the most commonly used device[82(38.1%)cases].The success rate of the procedure was 100%,and complication were observed in only one case(0.5%).CONCLUSION Endoscopic management of FBs and FBI in our Hospital is extremely safe and effective. | Kenji JL Limpias Kamiya Naoki Hosoe Kaoru Takabayashi Yukie Hayashi Xi Sun Ryoichi Miyanaga Kayoko Fukuhara Seiichiro Fukuhara Makoto Naganuma Atsushi Nakayama Motohiko Kato Tadateru Maehata Rieko Nakamura Koichi Ueno Junichi Sasaki Yuko Kitagawa Naohisa Yahagi Haruhiko Ogata Takanori Kanai | 2020 | World Journal of Gastrointestinal Endoscopy2020，12，1： | 3 |
| 8 | Percutaneous endoscopic gastrostomy under steadypressure automatically controlled endoscopy:First clinicalseries显示文摘AIM: To elucidate the safety of percutaneous endoscopic gastrostomy(PEG) under steady pressure automatically controlled endoscopy(SPACE) using carbon dioxide(CO_2).METHODS: Nine patients underwent PEG with a modified introducer method under conscious sedation. A T-tube was attached to the channel of an endoscope connected to an automatic surgical insufflator. The stomach was inflated under the SPACE system. The intragastric pressure was kept between 4-8 mmH g with a flow of CO_2 at 35 L/min. Median procedure time, intragastric pressure, median systolic blood pressure, partial pressure of CO_2, abdominal girth before and immediately after PEG, and free gas and small intestinal gas on abdominal X-ray before and after PEG were recorded. RESULTS: PEG was completed under stable pneumostomach in all patients, with a median procedural time of 22 min. Median intragastric pressure was 6.9 mmH g and median arterial CO_2 pressure before and after PEG was 42.1 and 45.5 Torr(NS). The median abdominal girth before and after PEG was 68.1 and 69.6 cm(NS). A mild free gas image after PEG was observed in two patients, and faint abdominal gas in the downstream bowel was documented in two patients.CONCLUSION: SPACE might enable standardized pneumostomach and modified introducer procedure of PEG. | Hiroyuki Imaeda Kiyokazu Nakajima Naoki Hosoe Masanori Nakahara Shinichiro Zushi Motohiko Kato Kazuhiro Kashiwagi Yasushi Matsumoto Kayoko Kimura Rieko Nakamura Norihito Wada Masahiko Tsujii Naohisa Yahagi Toshifumi Hibi Takanori Kanai Tetsuo Takehara Haruhiko Ogata | 2016 | World Journal of Gastrointestinal Endoscopy2016，8，3： | 2 |
| 9 | Adiponectin Inhibits Murine Pancreatic Cancer Growth显示文摘 | Motohiko Kato Kenji Watabe Masahiko Tsujii Tohru Funahashi Iichiro Shimomura Tetsuo Takehara | 2014 | Digestive Diseases and Sciences2014，，6： | 2 |
| 10 | Characterization and functional properties of soybean high-molecular-mass polysaccharide complex显示文摘 | Akihiro Nakamura Nanae Fujii Junko Tobe Norifumi Adachi Motohiko Hirotsuka | 2012 | Food Hydrocolloids2012，，1： | 2 |
| 11 | Cause and Management of Recurrent Primary Spontaneous Pneumothorax After Thoracoscopic Stapler Blebectomy显示文摘 | Takashi Muramatsu Mie Shimamura Motohiko Furuichi Tatsuhiko Nishii Shinji Takeshita Shinichiro Ishimoto Hiroaki Morooka Yoko Tanaka Chiyoshi Yagasaki Kazumitsu Ohmori Motomi Shiono | 2011 | Asian Journal of Surgery2011，，2： | 2 |
| 12 | Comparison of EMR and endoscopic submucosal dissection for en bloc resection of early esophageal cancers in Japan显示文摘 | Ryu Ishihara Hiroyasu Iishi Noriya Uedo Yoji Takeuchi Sachiko Yamamoto Takuya Yamada Eriko Masuda Koji Higashino Motohiko Kato Hiroyuki Narahara Masaharu Tatsuta | 2008 | Gastrointestinal Endoscopy2008，，6： | 2 |
| 13 | Dynamic Interaction of Parallel Moving Ships in Close Proximity显示文摘现在,有许多研究,在集中于二个容器旅行并且漂浮在足够地靠近的最近经历重要相互作用的海洋的水动力学的地里进行。在波浪的平行动人的轮船的水动力学行为近来是一个有趣、重要的话题。数字调查为在常规波浪使力量和平行动人的轮船的运动回答激动的波浪的预言被执行了。数字答案基于 3D 分发技术,使用线性波浪理论决定激动强迫并且发货运动。速度效果为更现实主义的结果在格林功能被考虑了。使力量和运动回答激动的波浪的数字计算为一个水手被执行,为发现不同弗鲁德的目的的系列 60 数并且处于头海条件的不同分离距离。基于数字计算,这被揭示摇摆,滚动并且偏航由于水动力学有重要效果相互作用。 | M. Rafiqul Islam Motohiko Murai | 2013 | Journal of Marine Science and Application2013，12，3： | 2 |
| 14 | Dynamic viscoelastic study on the gelation of 7S globulin from soybean 显示文摘 | Takao N Motohiko H Hiroyuki M | 1992 | Journal of Agricultural and Food Chemistry1992，48，： | 1 |
| 15 | Electrophoresis of a charge-inverted macroion complex: Molecular-dynamics study显示文摘 | Motohiko Tanaka A.Yu. Grosberg | 2002 | The European Physical Journal E2002，，4： | 1 |
| 16 | 显示文摘 | Shigetoshi F Motohiko T Seishi M | 2002 | Oncology2002，62，1： | 1 |
| 17 | Aerodynamic Force on Circular Cylinders of Finite Height 显示文摘 | Yasushi U Motohiko Y | 1994 | Journal of Wind Engineering and Industry Aerodynamic1994，51，4： | 1 |
| 18 | Outbreaks of Edwardsiella ictaluri infection in AYU Plecoglossus altivelis in Japanese rivers显示文摘 | Takamitsu S Takashi K Motohiko S | 2008 | Fish Pathol2008，，43： | 1 |
| 19 | Effect of water temperature on mortality and virus shedding in carp experimentally infected with Koi herpesvirus显示文摘 | Yuasa Kei Ito Takafumi Sano Motohiko | 2008 | Fish Pathol2008，43，2： | 1 |
| 20 | Tumor markers in early diaguosis,follow-up and management of patients with hepatocellular carcinoma显示文摘 | Motohiko T Seishi M | 2002 | Oncol-ogy2002，62，1： | 1 |
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