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| 1 | 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 |
| 2 | Feasibility of cold snare polypectomy in Japan: A pilot study显示文摘AIM: To investigate the feasibility of cold snare polypectomy(CSP) in Japan.METHODS: The outcomes of 234 non-pedunculated polyps smaller than 10 mm in 61 patients who underwent CSP in a Japanese referral center were retrospectively analyzed. The cold snare polypectomies were performed by nine endoscopists with no prior experience in CSP using an electrosurgical snare without electrocautery.RESULTS: CSPs were completed for 232 of the 234 polyps. Two(0.9%) polyps could not be removed without electrocautery. Immediate postpolypectomy bleeding requiring endoscopic hemostasis occurred in eight lesions(3.4%; 95%CI: 1.1%-5.8%), but all were easily managed. The incidence of immediate bleeding after CSP for small polyps(6-9 mm) was significantly higher than that of diminutive polyps(≤ 5 mm; 15% vs 1%, respectively). Three(5%) patients complained of minor bleeding after the procedure but required no intervention. The incidence of delayed bleeding requiringendoscopic intervention was 0.0%(95%CI: 0.0%-1.7%). In total, 12% of the resected lesions could not be retrieved for pathological examination. Tumor involvement in the lateral margin could not be histologically assessed in 70(40%) lesions.CONCLUSION: CSP is feasible in Japan. However, immediate bleeding, retrieval failure and uncertain assessment of the lateral tumor margin should not be underestimated. Careful endoscopic diagnosis before and evaluation of the tumor residue after CSP are recommended when implementing CSP in Japan. | Yoji Takeuchi Takeshi Yamashina Noriko Matsuura Takashi Ito Mototsugu Fujii Kengo Nagai Fumi Matsui Tomofumi Akasaka Noboru Hanaoka Koji Higashino Hiroyasu Iishi Ryu Ishihara Henrik Thorlacius Noriya Uedo | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，17： | 14 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | Magnetism in Carbon Nanoscrolls: Quasi-Half-Metals and Half-Metals in Pristine Hydrocarbons显示文摘A magnetic ground state is revealed for the first time in zigzag-edged carbon nanoscrolls(ZCNSs)from spin-unrestricted density functional theory calculations.Unlike their flat counterpart-zigzag-edged carbon nanoribbons,which are semiconductors with spin-degenerate electronic structure-ZCNSs show a variety of magnetic configurations,namely spin-selective semiconductors,metals,semimetals,quasi-half-metals,and half-metals.To the best of our knowledge,this is the first discovery of quasi-half-metals and half-metals in a pure hydrocarbon without resort to an external electric field.In addition,we calculated the spin-dependent transportation of the semiconducting ZCNSs with 12 and 20 zigzag chains,and found that they are 13% and 17% at the Fermi level,respectively,suggesting that ZCNS can be an effective spin filter. | Lin Lai Jing Lu Lu Wang Guangfu Luo Jing Zhou Rui Qin Yu Chen Hong Li Zhengxiang Gao Guangping Li Wai Ning Mei Yutaka Maeda Takeshi Akasaka and Stefano Sanvito | 2009 | Nano Research2009，2，11： | 3 |
| 7 | Practical fecal calprotectin cut-off value for Japanese patients with ulcerative colitis显示文摘AIM To determine appropriate fecal calprotectin cut-off values for the prediction of endoscopic and histologic remission in Japanese patients with ulcerative colitis(UC). METHODS We performed a cross-sectional observational study of 131 Japanese patients with UC and measured fecal calprotectin levels by fluorescence enzyme immunoassay. The clinical activity of UC was assessed with the partial Mayo score(PMS). Relapse was defined as increase of PMS by 2 points or more in stool frequency or rectal bleeding subscore. The endoscopic and histologic activities of UC were evaluated in 50 patients within a 2-mo period from fecal sampling. Endoscopic activity was determined by Mayo endoscopic subscore, Rachmilewitz endoscopic index, and ulcerative colitis endoscopic index of severity. The histologic grade of inflammation was evaluated with biopsy specimens obtained from the endoscopically most severely inflamed site, according to the scheme by Matts grade and Riley's score.RESULTS Fecal calprotectin levels varied from 1-20783 μg/g. There was a significant correlation between the partial Mayo score and fecal calprotectin levels(r = 0.548, P < 0.001). In 50 patients who underwent colonoscopy with biopsy, levels were significantly correlated with the Mayo endoscopic subscore(r = 0.574, P < 0.001), Rachmilewitz endoscopic index(r = 0.628, P < 0.001), ulcerative colitis endoscopic index of severity(r = 0.613, P < 0.001), Riley's histologic score(r = 0.400, P = 0.006), and Matts grade(r = 0.586, P < 0.001). Receiver-operating characteristic analyses identified the best cut-off value for the prediction of endoscopic remission as 288 μg/g, with an area under the curve of 0.777 or 0.823, while that for histologic remission was 123 or 125 μg/g, with an AUC of 0.881 or 0918, respectively. Of the 131 study patients, 88 patients in clinical remission were followed up 6 mo. During the follow-up period, 19 patients relapsed. The best fecal calprotectin cut-off value for predicting relapse was 175 μg/g.CONCLUSION Fecal calprotectin is a predictive biomarker for endoscopic and histologic remission in Japanese patients with UC. | Jun Urushikubo Shunichi Yanai Shotaro Nakamura Keisuke Kawasaki Risaburo Akasaka Kunihiko Sato Yosuke Toya Kensuke Asakura Takahiro Gonai Tamotsu Sugai Takayuki Matsumoto | 2018 | World Journal of Gastroenterology2018，24，38： | 3 |
| 8 | CagA mediates epigenetic regulation to attenuate let-7 expression in Helicobacter pylori-related carcinogenesis显示文摘 | Yoshito Hayashi Masahiko Tsujii Jun Wang Jumpei Kondo Tomofumi Akasaka Ying Jin Wei Li Toru Nakamura Tsutomu Nishida Hideki Iijima Shingo Tsuji Sunao Kawano Norio Hayashi Tetsuo Takehara | 2013 | Gut2013，，11： | 2 |
| 9 | 高压NMR在蛋白质结构和动力学研究中的应用显示文摘与温度一样,压力是基本的热力学变量.蛋白质在溶液中是多种构象的热力学平衡体.在不同的温度和压力等条件下,蛋白质包括折叠构象、变性构象以及各种中间体在内的不同构象的存在频率各不相同.当用压力作为扰动时,由于这些构象的偏摩尔体积不同,它们的存在频率便会因而发生变化,加压可将平衡向具有较小偏摩尔体积的方向移动.因此,利用高压核磁共振(NMR)技术,不仅可以研究高压对蛋白质结构和动力学的影响,还可以通过改变压力,在更为广泛的构象空间研究蛋白质结构和动力学.例如,利用平衡体系在加压时向体积小的构象方向移动这一特性,能够对在常压下因其存在频率低而难于检测、但在高压下因其体积小而存在频率增加了的构象进行深入研究,而这些构象往往与蛋白质的功能密切相关.该篇综述首先介绍了高压在蛋白质科学研究中的历史、有关概念和高压NMR技术;其次,结合实例,阐述高压NMR技术在蛋白质结构、折叠以及动力学研究中的应用;最后,对高压NMR技术在蛋白质研究中的应用前景进行展望. | 李华 Yuji O.KAMATARI Ryo KITAHARA Kazuyuki AKASAKA | 2016 | 波谱学杂志2016，33，1： | 2 |
| 10 | MBLR, a new RING finger protein resembling mammalian Polyeomb gene products, is regulated by cell cycle-dependent phosphorylation显示文摘 | Akasaka T Takahashi N Suzuki M | 2002 | Genes Cells2002，7，8： | 1 |
| 11 | Enhanced expression of caspase-3 in hypertrophic scars and keloid:induction of caspase-3 and apoptosisin keloid fibroblasts in vitro显示文摘 | Akasaka Y Ishikawa Y Ono I | 2000 | Lab Invest2000，80，3： | 1 |
| 12 | Refinement of the bcl-2/immunoglobulin heavy chain fusion gene in t (14; 18) (q32;q21) by polymerase chain reaction amplification for long target 显示文摘 | Akasaka T Akasaka H Yonetani N | 1998 | Gene Chromosomes Cancer1998，21，1： | 1 |
| 13 | Impaired motor coordination in mice lacking neural recognition molecule NB-3 of the contactin/F3 subgroup显示文摘 | Takeda Y Akasaka K Lee S | 2003 | J Neurobiol2003，56，3： | 1 |
| 14 | Effects of post-annealing on thermoelectric properties of p-type CoSb grown by the vertical Bridgman method 显示文摘 | Akasaka M lida T Sakuragi G | 2005 | Journal of Alloys and Compounds2005，386，： | 1 |
| 15 | Anatomic Properties of Myocardial Bridge Predisposing to Myocardial Infarction显示文摘 | Yukio Ishikawa Yoshikiyo Akasaka Koyu Suzuki | | 0，，： | 1 |
| 16 | Valproic acid enhances in vitro develop-ment and Oct-3/4 expression of miniature pig somatic celln-uclear transfer embryos显示文摘 | Miyoshi K Moii H Mizobe Y Akasaka E Ozawa A Yoshida M Sato M | | 0，，01： | 1 |
| 17 | Optical coherence tomography imaging in acute coronary syndromes显示文摘 | Kubo T Ino Y Akasaka T | | 0，，： | 1 |
| 18 | Endothelial progenitor cell differentiation and senescence in an angiotensin Ⅱ-infusion rat model显示文摘 | Kobayashi K Imanishi T Akasaka T | | Hypertension Res0，29，6： | 1 |
| 19 | Planimetry and Transthoracic Two-Dimensional Echocardiography in Noninvasive Assessment of Aortic Valve Area in Patients With Valvular Aortic Stenosis显示文摘 | Hiroyuki Okura Kiyoshi Yoshida Takeshi Hozumi Takashi Akasaka Junichi Yoshikawa | 1997 | Journal of the American College of Cardiology1997，，： | 1 |
| 20 | The effect of myocardial bridging of the coronary artery on vasoactive agents and atherosclerosis localization 显示文摘 | Masuda T Ishikwa Y Akasaka Y | 2001 | J Pathol2001，193，： | 1 |
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