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| 1 | 胃癌预防亚太地区共识指南显示文摘背景与目的:胃癌是亚太地区的主要健康负担之一,但对其预防策略尚缺乏共识。本共识会议旨在评价预防胃癌的策略。方法:多学科专家组应用德尔菲(Delphi)法制订共识条文,提呈相关数据,对证据等级、推荐强度以及共识水平予以分级。结果:幽门螺杆菌(H.pylori)感染是非贲门胃腺癌必要但非充分的致病因子。盐的高摄入与胃癌强烈相关。新鲜果蔬对胃癌具有预防作用,但维生素和其他饮食补充并不能预防胃癌。H.pylori感染中的宿主-细菌相互作用导致不同类型的胃炎和胃酸分泌,从而决定疾病结局。胃癌阳性家族史是一个重要的危险因素。低血清胃蛋白酶原反映胃萎缩程度,可作为检出胃癌高危人群的标志物。H.pylori筛查和治疗被推荐作为减少高危人群胃癌危险性的一种策略,该策略在萎缩性胃炎发生前实施最为有效,但并不排除对胃癌高危人群的内镜监测。对胃癌低危人群不推荐行H.pylori筛查。H.pylori感染的一线治疗应遵循国家治疗指南。结论:高危人群中H.pylori筛查和根除策略可能会减少胃癌的发生率,本共识根据现有证据予以推荐。 | Kwong Ming Fock Nick Talley Paul Moayyedi Richard Hunt Takeshi Azuma Kentaro Sugano Shu Dong Xiao Shiu Kum Lam Khean Lee Goh Tsutomu Chiba Naomi Uemura Jae G Kim Nayoung Kim Tiing Leong Ang Varocha Mahachai Hazel Mitchell Abdul Aziz Rani Jyh Ming Liou Ratha-korn Vilaichone Jose Sollanor 钱本余 | 2008 | 胃肠病学2008，13，4： | 37 |
| 2 | Variations and mutations in the hepatitis B virus genome and their associations with clinical characteristics显示文摘Hepatitis B virus(HBV) infection is major global issue, because chronic HBV infection is strongly associated with liver cancer. HBV spread worldwide with variousmutations and variations. This variability, called quasispecies, is derived from no proof-reading capacity of viral reverse transcriptase. So far, thousands of studies reported that the variety of genome is closely related to the geographic distribution and clinical characteristics. Recent technological advances including capillary sequencer and next generation sequencer have made in easier to analyze mutations. The variety of HBV genome is related to not only antigenicity of HBs-antigen but also resistance to antiviral therapies. Understanding of these variations is important for the development of diagnostic tools and the appropriate therapy for chronic hepatitis B. In this review, recent publications in relation to HBV mutations and variations are updated and summarized. | Yoshihiko Yano Takeshi Azuma Yoshitake Hayashi | 2015 | World Journal of Hepatology2015，7，3： | 8 |
| 3 | Predominant mucosal IL-8 mRNA expression in non-cagA Thais is risk for gastric cancer显示文摘AIM:To study gastric mucosal interleukine-8(IL-8) mRNA expression,the cytotoxin-associated gene A(cagA) mutation,and serum pepsinogen(PG)Ⅰ/Ⅱ ratio related risk in Thai gastric cancer.METHODS:There were consent 134 Thai non-cancer volunteers who underwent endoscopic narrow band imaging examination,and 86 Thais advance gastric cancer patients who underwent endoscopic mucosal biopsies and gastric surgery.Tissue samples were taken by endoscopy with 3 points biopsies.The serum PG Ⅰ,Ⅱ,and Helicobacter pylori(H.pylori) immunoglobulin G(IgG) antibody for H.pylori were tested by enzyme-linked immunosorbent assay technique.The histopathology description of gastric cancer and non-cancer with H.pylori detection was defined with modified Sydney Score System.Gastric mucosal tissue H.pylori DNA was extracted and genotyped for cagA mutation.Tissue IL-8 and cyclooxygenase-2(COX-2) mRNA expression were conducted by real time relative quantitation polymerase chain reaction.From 17 Japanese advance gastric cancer and 12 benign gastric tissue samples,all were tested for genetic expression with same methods as well as Thai gastric mucosal tissue samples.The multivariate analysis was used for the risk study.Correlation and standardized t-test were done for quantitative data,P value < 0.05 was considered as a statistically significant.RESULTS:There is a high non cagA gene of 86.8 per cent in Thai gastric cancer although there are high yields of the East Asian type in the positive cagA.The H.pylori infection prevalence in this study is reported by combined histopathology and H.pylori IgG antibody test with 77.1% and 97.4% of sensitivity and specificity,respectively.The serum PG Ⅰ/Ⅱ ratio in gastric cancer is significantly lower than in the non-cancer group,P = 0.045.The serum PG Ⅰ/Ⅱ ratio of less than 3.0 and IL-8 mRNA expression ≥ 100 or log 10 ≥ 2 are significant cut off risk differences between Thai cancer and non-cancer,P = 0.03 and P < 0.001,respectively.There is a significantly lower PGI/II ratio in Japanese than that in Thai gastric cancer,P = 0.026.Serum PG Ⅰ/Ⅱ ratio at cut off less than 3.0 and IL-8 mRNA expression Raw RQ > 100 or log 10 > 2 are significantly difference between Thai cancer group when compared to non-cancer group,P = 0.013 and P < 0.001,respectively.In the correlation study,low PG Ⅰ/Ⅱ ratio does not associate with chronic atrophic gastritis severity score in Thais non-cancer cases.However,there is a trend,but not significant convert correlation between IL-8 mRNA expression level and low PG Ⅰ/Ⅱ ratio in Thai positive H.pylori infection.The high expression of IL-8 gene demonstrates a poorer prognosis by stage and histology.CONCLUSION:Predominant gastric mucosal IL-8 mRNA expression level,H.pylori infection,and low PG Ⅰ/Ⅱ ratio are relative risks for Thai gastric cancer without correlation with cagA mutation. | Sirikan Yamada Shunji Kato Takeshi Matsuhisa Luksana Makonkawkeyoon Masaru Yoshida Thiraphat Chakrabandhu Nirush Lertprasertsuk Pawit Suttharat Bandhuphat Chakrabandhu Shin Nishiumi Wilaiwan Chongraksut Takeshi Azuma | 2013 | World Journal of Gastroenterology2013，19，19： | 8 |
| 4 | Magnifying endoscopy in upper gastroenterology for assessing lesions before completing endoscopic removal显示文摘Any prognosis of gastrointestinal (GI) cancer is closely related to the stage of the disease at diagnosis.Endoscopic submucosal dissection (ESD) and en bloc endoscopic mucosal resection (EMR) have been performed as curative treatments for many early-stage GI lesions in recent years.The technologies have been widely accepted in many Asian countries because they are minimally invasive and supply thorough histopathologic evaluation of the specimens.However,before engaging in endoscopic therapy,an accurate diagnosis is a precondition to effecting the complete cure of the underlying malignancy or carcinoma in situ.For the past few years,many new types of endoscopic techniques,including magnifying endoscopy with narrow-band imaging (MENBI),have emerged in many countries because these methods provide a strong indication of early lesions and are very useful in determining treatment options before ESD or EMR.However,to date,there is no comparable classification equivalent to 'Kudo's Pit Pattern Classification in the colon',for the upper GI,there is still no clear internationally accepted classification system of magnifying endoscopy.Therefore,in order to help unify some viewpoints,here we will review the defining optical imaging characteristics and the current representative classifications of microvascular and microsurface patterns in the upper GI tract under ME-NBI,describe the accurate relationship between them and the pathological diagnosis,and their clinical applications prior to ESD or en bloc EMR.We will also discuss assessing the differentiation and depth of invasion,defying the lateral spread of involvement and targeting biopsy in real time. | Ning-Li Chai En-Qiang Ling-Hu Yoshinori Morita Daisuke Obata Takashi Toyonaqa Takeshi Azuma Ben-Yan Wu | 2012 | World Journal of Gastroenterology2012，18，12： | 7 |
| 5 | Feasibility and safety of endoscopic submucosal dissection for lower rectal tumors with hemorrhoids显示文摘AIM: To evaluate the feasibility and safety of endoscopic submucosal dissection(ESD) for lower rectal lesions with hemorrhoids.METHODS: The outcome of ESD for 23 lesions with hemorrhoids(hemorrhoid group) was compared with that of 48 lesions without hemorrhoids extending to the dentate line(non-hemorrhoid group) during the same study period. RESULTS: Median operation times(ranges) in the hemorrhoid and non-hemorrhoid groups were 121(51-390) and 130(28-540) min. The en bloc resection rate and the curative resection rate in the hemorrhoid group were 96% and 83%, and they were 100% and 90% in the non-hemorrhoid group, respectively. In terms of adverse events, perforation and postoperative bleeding did not occur in both groups. In terms of the clinical course of hemorrhoids after ESD, the rate of complete recovery of hemorrhoids after ESD in lesions with resection of more than 90% was significantly higher than that in lesions with resection of less than 90%.CONCLUSION: ESD on lower rectal lesions with hemorrhoids could be performed safely, similarly to that on rectal lesions extending to the dentate line without hemorrhoids. In addition, all hemorrhoids after ESD improved to various degrees, depending on the resection range. | Shinwa Tanaka Takashi Toyonaga Yoshinori Morita Namiko Hoshi Tsukasa Ishida Yoshiko Ohara Tetsuya Yoshizaki Fumiaki Kawara Eiji Umegaki Takeshi Azuma | 2016 | World Journal of Gastroenterology2016，22，27： | 6 |
| 6 | Pulmonary embolism after arterial chemoembolization for hepatocellular carcinoma: An autopsy case report显示文摘We report an extremely rare case of pulmonary lipiodol embolism with acute respiratory distress syndrome(ARDS) after transcatheter arterial chemoembolization(TACE) for hepatocellular carcinoma(HCC). A 77-yearold man who was diagnosed with a huge HCC wasadmitted for TACE. Immediately after the procedure, this patient experienced severe dyspnea. We suspected that his symptoms were associated with a pulmonary lipiodol embolism after TACE, and we began intensive treatment. However, his condition did not improve, and he died on the following day. A subsequent autopsy revealed that the cause of death was ARDS due to pulmonary lipiodol embolism. No cases have been previously reported for which an autopsy was performed to explain the most probable mechanism of pulmonary lipiodol embolism; thus, ours is the first report for such a rare case. | Keiichi Hatamaru Shunjiro Azuma Takuji Akamatsu Takeshi Seta Shunji Urai Yoshito Uenoyama Yukitaka Yamashita Kazuo Ono | 2015 | World Journal of Gastroenterology2015，21，4： | 5 |
| 7 | Hypoxia-inducible factor 1 alpha and vascular endothelial growth factor overexpression in ischemic colitis显示文摘AIM: To examine the etiology and pathophysiology in human ischemic colitis from the viewpoint of ischemic favors such as hypoxia-inducible factor 1 alpha (HIF-1alpha and vascular endothelial growth factor (VEGF).METHODS: Thirteen patients with ischemic colitis and 21 normal controls underwent colonoscopy. The follow-up colonoscopy was performed in 8 patients at 7 to 10 d after theoccurrence of ischemic colitis. Biopsy samples were subjected to real-time RT-PCR and immunohistochemistry to detect the expression of HIF-1 alpha and VEGF.RESULTS: HIF-1 alpha and VEGF expression were found in the normal colon tissues by RT-PCR and immunohistochemistry.HIF-1 alpha and VEGF were overexpressed in the lesions of ischemic colitis. Overexpressed HIF-1 alpha and VEGF RNA quickly decreased to the normal level in the scar regions at 7 to 10 d after the occurrence of ischemic colitis.CONCLUSION: Constant expression of HIF-1 alpha and VEGF in normal human colon tissue suggested that HIF-1alpha and VEGF play an important role in maintaining tissue integrity. We confirmed the ischemic crisis in ischemic colitis at the molecular level, demonstrating overexpression of HIF-1 alpha and VEGF in ischemic lesions. These ischemic factors may play an important role in the pathophysiology of ischemic colitis. | Tomoyuki Okuda Takeshi Azuma Masahiro Ohtani Ryuho Masaki Yoshiyuki Ito Yukinao Yamazaki Shigeji Ito Masaru Kuriyama | 2005 | World Journal of Gastroenterology2005，11，10： | 5 |
| 8 | Factors associated with residual gastroesophageal reflux disease symptoms in patients receiving proton pump inhibitor maintenance therapy显示文摘AIM To elucidate the factors associated with residual gastroesophageal reflux disease(GERD) symptoms in patients receiving proton pump inhibitor(PPI) maintenance therapy in clinical practice.METHODS The study included 39 GERD patients receiving maintenance PPI therapy. Residual symptoms were assessed using the Frequency Scale for Symptoms of GERD(FSSG) questionnaire and the Gastrointestinal Symptom Rating Scale(GSRS). The relationships between the FSSG score and patient background factors, including the CYP2C19 genotype, were analyzed.RESULTS The FSSG scores ranged from 1 to 28 points(median score: 7.5 points), and 19 patients(48.7%) had a score of 8 points or more. The patients' GSRS scores were significantly correlated with their FSSG scores(correlation coefficient = 0.47, P < 0.005). In erosive esophagitis patients, the FSSG scores of the CYP2C19 rapid metabolizers(RMs) were significantly higher than the scores of the poor metabolizers and intermediate metabolizers(total scores: 16.7 ± 8.6 vs 7.8 ± 5.4, P < 0.05; acid reflux-related symptom scores: 12 ± 1.9 vs 2.5 ± 0.8, P < 0.005). In contrast, the FSSG scores of the CYP2C19 RMs in the non-erosive reflux disease patients were significantly lower than those of the other patients(total scores: 5.5 ± 1.0 vs 11.8 ± 6.3, P < 0.05; dysmotility symptom-related scores: 1.0 ± 0.4 vs 6.0 ± 0.8, P < 0.01). CONCLUSION Approximately half of the GERD patients receiving maintenance PPI therapy had residual symptoms associated with a lower quality of life, and the CYP2C19 genotype appeared to be associated with these residual symptoms. | Fumiaki Kawara Tsuyoshi Fujita Yoshinori Morita Atsushi Uda Atsuhiro Masuda Masaya Saito Makoto Ooi Tsukasa Ishida Yasuyuki Kondo Shiei Yoshida Tatsuya Okuno Yoshihiko Yano Masaru Yoshida Hiromu Kutsumi Takanobu Hayakumo Kazuhiko Yamashita Takeshi Hirano Midori Hirai Takeshi Azuma | 2017 | World Journal of Gastroenterology2017，23，11： | 5 |
| 9 | Gastric plexiform fibromyxoma resected by endoscopic submucosal dissection after observation of chronological changes:A case report显示文摘A 66-year-old man was diagnosed with a gastric submucosal tumor. Endoscopic ultrasound(EUS) revealed an iso/hypoechoic mass in the third layer. No malignant cells were detected in a histological examination. Yearly follow-up endoscopy and EUS showed the slow growth of the tumor. Endoscopic submucosal dissection(ESD) was performed and a glistening tumor was resected. The lesion showed a multinodular plexiform growth pattern consisting of spindle cells with an abundant fibromyxoid stroma that was rich in small vessels. The tumor was diagnosed as plexiform fibromyxoma(PF) by immunohistochemistry. Although difficulties are associated with reaching a diagnosis preoperatively, chronological changes on EUS may contribute to the diagnosis of PF. ESD may also be useful in the diagnosis and treatment of PF. | Fumiaki Kawara Shinwa Tanaka Takashi Yamasaki Yoshinori Morita Yoshiko Ohara Yoshihiro Okabe Namiko Hoshi Takashi Toyonaga Eiji Umegaki Hiroshi Yokozaki Takanori Hirose Takeshi Azuma | 2017 | World Journal of Gastrointestinal Oncology2017，9，6： | 3 |
| 10 | Esophageal diverticulum exposed during endoscopic submucosal dissection of superficial cancer显示文摘Endoscopic submucosal dissection(ESD) is now widely accepted as a strategy to treat superficial esophageal neoplasms.The rate of adverse events,such as perforation,has been decreasing with the improvement of devices and techniques.In this paper,we report a case of esophageal cancer that had a diverticulum under cancerous epithelium.The diverticulum was not detected during preoperative examination,and led to perforation during the ESD procedure.Our case shows that,although rare,some diverticula can exist underneath the mucosal surface without obvious depression.If there is any sign of hidden diverticula during ESD,surgeons should proceed with caution or,depending on the case,the procedure should be discontinued to avoid adverse events. | Shinwa Tanaka Takashi Toyonaga Yoshiko Ohara Tetsuya Yoshizaki Fumiaki Kawara Tsukasa Ishida Namiko Hoshi Yoshinori Morita Takeshi Azuma | 2015 | World Journal of Gastroenterology2015，21，10： | 2 |
| 11 | The CagA protein of Helicobacter pylori suppresses the functions of dendritic cell in mice显示文摘 | Hiroshi Tanaka Masaru Yoshida Shin Nishiumi Naomi Ohnishi Kazuki Kobayashi Koji Yamamoto Tsuyoshi Fujita Masanori Hatakeyama Takeshi Azuma | 2010 | Archives of Biochemistry and Biophysics2010，，1： | 2 |
| 12 | A metabolomic approach to lung cancer显示文摘 | Suya Hori Shin Nishiumi Kazuyuki Kobayashi Masakazu Shinohara Yukihisa Hatakeyama Yoshikazu Kotani Naoya Hatano Yoshimasa Maniwa Wataru Nishio Takeshi Bamba Eiichiro Fukusaki Takeshi Azuma Tadaomi Takenawa Yoshihiro Nishimura Masaru Yoshida | 2011 | Lung Cancer2011，，2： | 2 |
| 13 | Endoscopic submucosal dissection for early gastric cancer in anastomosis site after distal gastrectomy显示文摘 | Shinwa Tanaka Takashi Toyonaga Yoshinori Morita Tsuyoshi Fujita Tetsuya Yoshizaki Fumiaki Kawara Chika Wakahara Daisuke Obata Aya Sakai Tsukasa Ishida Nobunao Ikehara Takeshi Azuma | 2014 | Gastric Cancer2014，，2： | 2 |
| 14 | Ex vivo pig training model for esophageal endosopic submucosal dissection (ESD) for endoscopists with experience in gastric ESD显示文摘 | Shinwa Tanaka Yoshinori Morita Tsuyoshi Fujita Chika Wakahara Atsuki Ikeda Takashi Toyonaga Takeshi Azuma | 2012 | Surgical Endoscopy2012，，6： | 1 |
| 15 | 1,635 Endoscopic submucosal dissection cases in the esophagus, stomach, and colorectum: complication rates and long-term outcomes显示文摘 | Takashi Toyonaga Mariko Man-i James E. East Eisei Nishino Wataru Ono Tomoomi Hirooka Chie Ueda Yoshinori Iwata Takeshi Sugiyama Toshio Dozaiku Takashi Hirooka Tsuyoshi Fujita Hideto Inokuchi Takeshi Azuma | 2013 | Surgical Endoscopy2013，，3： | 1 |
| 16 | Resistance to cytotoxic chemotherapy-induced apoptosis in side populationcells of human oral squamous cell carcinoma cell line Ho-1-N-1显示文摘 | Tetsuo Yajima Hiromi Ochiai Takeshi Uchiyama Nobuo Takano Takahiko Shibahara Toshifumi Azuma | 2009 | International Journal of Oncology2009，，2： | 1 |
| 17 | Feasibility and Safety of Endoscopic Submucosal Dissection for Large Colorectal Tumors显示文摘 | Shinwa Tanaka Takashi Toyonaga Yoshinori Morita Namiko Hoshi Tsukasa Ishida Yoshiko Ohara Tetsuya Yoshizaki Fumiaki Kawara Takeshi Azuma | 2015 | Surgical Laparoscopy, Endoscopy & Percutaneous Techniques2015，，3： | 1 |
| 18 | Helicobacter pylori CagA protein variation associated with gastric cancer in Asia显示文摘 | Takeshi Azuma | 2004 | Journal of Gastroenterology2004，，2： | 1 |
| 19 | Prescreening of a High-Risk Group for Gastric Cancer by Serologically Determined Helicobacter pylori Infection and Atrophic Gastritis显示文摘 | Shigeto Mizuno Ikuya Miki Tsukasa Ishida Masaru Yoshida Mitsuko Onoyama Takeshi Azuma Yasuki Habu Hideto Inokuchi Kotaro Ozasa Kazumasa Miki Yoshiyuki Watanabe | 2010 | Digestive Diseases and Sciences2010，，11： | 1 |
| 20 | The design of highly active rectangular column-structured titanium oxide photocatalysts and their application in purification systems显示文摘 | Takeshi Kudo Yuko Kudo Azuma Ruike | 2007 | Catalysis Today2007，122，： | 1 |
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