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| 1 | Gastric calcifying fibrous tumor removed by endoscopic submucosal dissection显示文摘The World Health Organization describes calcifying fibrous tumors(CFTs) as rare, benign lesions characterized by hypocellular, densely hyalinized collagenization with lymphoplasmacytic infiltration. These tumors rarely involve the gastrointestinal(GI) tract. A routine endoscopic upper gastrointestinal screen detected a 10-mm submucosal tumor(SMT) in the lesser curvature of the lower corpus of the stomach of an apparently healthy, 37-year-old woman with no history of Helicobacter pylori infection. Endoscopic ultrasonography(EUS) localized the internally isoechoic, homogeneous SMT mainly within the submucosa. Malignancy was ruled out using endoscopic submucosal dissection(ESD). A pathological examination confirmed complete resection of the SMT, and defined a hypocellular, spindle-cell tumor with a densely hyalinized, collagenous matrix, scattered lymphoplasmacytic aggregates as well as a few psammomatous, dystrophic calcified foci. The mass was immunohistochemically positive for vimentin and negative for CD117(c-kit protein), CD34, desmin, smooth muscle actin(SMA) and S100. Therefore, the histological findings were characteristic of a CFT. To date, CFT resection by ESD has not been described. This is the first case report of a gastric calcifying fibrous tumor being completely resected by ESD after endoscopic ultrasonography. | Naotaka Ogasawara Shinya Izawa Mari Mizuno Atsushi Tanabe Tomonori Ozeki Hisatsugu Noda Emiko Takahashi Makoto Sasaki Toyoharu Yokoi Kunio Kasugai | 2013 | World Journal of Gastrointestinal Endoscopy2013，5，9： | 8 |
| 2 | Clinicopathological features of early gastric cancers arising in Helicobacter pylori uninfected patients显示文摘BACKGROUND Persistent Helicobacter pylori(H.pylori)infection causes chronic inflammation,atrophy of the gastric mucosa,and a high risk of developing gastric cancer.In recent years,awareness of eradication therapy has increased in Japan.As H.pylori infections decrease,the proportion of gastric cancers arising from H.pylori uninfected gastric mucosa will increase.The emergence of gastric cancer arising in H.pylori uninfected patients though rarely reported,is a concern to be addressed and needs elucidation of its clinicopathological features.AIM To evaluate the clinicopathological features of early gastric cancer in H.pyloriuninfected patients.METHODS A total of 2462 patients with 3375 instances of early gastric cancers that were treated by endoscopic submucosal dissection were enrolled in our study between May 2000 and September 2019.Of these,30 lesions in 30 patients were diagnosed as H.pylori-uninfected gastric cancer(Hp UIGC).We defined a patient as H.pylori-uninfected using the following three criteria:(1)The patient did not receive treatment for H.pylori,which was determined by investigating medical recordsand conducting patient interviews;(2)Lack of endoscopic atrophy;and(3)The patient was negative for H.pylori after being tested at least twice using various diagnostic methods,including serum anti-H.pylori-Ig G antibody,urease breath test,rapid urease test,and microscopic examination.RESULTS The frequency of Hp UIGC was 1.2%(30/2462)for the patients in our study.The study included 19 males and 11 females with a mean age of 59 years.The location of the stomach lesions was divided into three sections;upper third(U),middle third(M),lower third(L).Of the 30 lesions,15 were U,1 was M,and 14 were L.Morphologically,17 lesions were protruded and flat elevated type(0-I,0-IIa,0-IIa+IIc),and 13 lesions were flat and depressed type(0-IIb,0-IIc).The median tumor diameter was 8 mm(range 2-98 mm).Histological analysis revealed that22 lesions(73.3%)were differentiated type.The Hp UIGC lesions were classified into fundic gland type adenocarcinoma(7 cases),foveolar type welldifferentiated adenocarcinoma(8 cases),intestinal phenotype adenocarcinoma(7 cases),and pure signet-ring cell carcinoma(8 cases).Among 30 Hp UIGCs,24 lesions(80%)were limited to the mucosa;wherein,the remaining 6 lesions showed submucosal invasion.One of the submucosal invasive lesions showed more than 500μm invasion.The mucin phenotype analysis identified 7 Hp UIGC with intestinal phenotype and 23 with gastric phenotype.CONCLUSION We elucidated the clinicopathological characteristics of Hp UIGC,revealing recognition not only undifferentiated-type but also differentiated-type.In addition,intestinal phenotype tumors were also observed and could be an important tip. | Chiko Sato Kingo Hirasawa Yoko Tateishi Yuichiro Ozeki Atsushi Sawada Ryosuke Ikeda Takehide Fukuchi Masafumi Nishio Ryosuke Kobayashi Makomo Makazu Hiroaki Kaneko Yoshiaki Inayama Shin Maeda | 2020 | World Journal of Gastroenterology2020，26，20： | 7 |
| 3 | Histopathological validation of magnifying endoscopy for diagnosis of mixed-histological-type early gastric cancer显示文摘BACKGROUND The undifferentiated-type(UDT)component profoundly affects the clinical course of early gastric cancers(EGCs).However,an accurate preoperative diagnosis of the histological types is unsatisfactory.To date,few studies have investigated whether the UDT component within mixed-histological-type(MT)EGCs can be recognized preoperatively.AIM To clarify the histopathological characteristics of the endoscopically-resected MT EGCs for investigating whether the UDT component could be recognized preoperatively.METHODS This was a single-center retrospective study.First,we attempted to clarify the histopathological characteristics of the endoscopically-resected MT EGCs with emphasis on the UDT component.Histopathological examination investigated each lesion’s UDT component:(1)Whole mucosal layer occupation of the UDT component;(2)UDT component exposure to the surface of the mucosa;and(3)existence of a clear border between the differentiated-type and UDT components.Then,preoperative endoscopic images with magnifying endoscopy with narrowband imaging(ME-NBI)were examined to identify whether the endoscopic UDT component finding was recognizable within the area where it was present in the histopathological examination.The preoperative biopsy results and comparative relationships between endoscopic and histopathological findings were also examined.RESULTS In the histopathological examination,the whole mucosal layer occupation of the UDT component and exposure of the UDT component to the mucosal surface were observed in 67.3%(33/49)and 79.6%(39/49)of samples,respectively.A clear distinction of the border between the differentiated-type and UDT components could not be drawn in 65.3%(32/49)of MT lesions.In the endoscopic examination,the preoperative endoscopic images showed that only 24.5%(12/49)of MT EGCs revealed the UDT component within the area where it was present histopathologically.Histopathological UDT predominance was the single significant factor associated with the presence of the endoscopic UDT component finding(61.5%vs 11.1%,P=0.0009).Only 26.5%(13/49)of the lesions were diagnosed from the pretreatment biopsy as having a UDT component.Combined results of the pretreatment biopsy and ME-NBI showed the preoperative presence of the UDT component in 40.8%(20/49)of MT EGCs.CONCLUSION Recognition of a UDT component within MT EGCs is difficult even when pretreatment biopsy and ME-NBI are combined.Endoscopic resection plays a significant role in both treatment and diagnosis. | Yuichiro Ozeki Kingo Hirasawa Ryosuke Kobayashi Chiko Sato Yoko Tateishi Atsushi Sawada Ryosuke Ikeda Masafumi Nishio Takehide Fukuchi Makomo Makazu Masataka Taguri Shin Maeda | 2020 | World Journal of Gastroenterology2020，26，36： | 5 |
| 4 | Advances in refractory ulcerative colitis treatment: A new therapeutic target, Annexin A2显示文摘Medical treatment has progressed significantly over the past decade towards achieving and maintaining clinical remission in patients with refractory ulcerative colitis(UC). Proposed mediators of inflammation in UC include pro-inflammatory cytokines such as tumor necrosis factor-α(TNF-α) and interleukin-2, and the cellsurface adhesive molecule integrin α4β7. Conventional therapeutics for active UC include 5-aminosalicylic acid, corticosteroids and purine analogues(azathioprine and 6-mercaptopurine). Patients who fail to respond to conventional therapy are treated with agents such as the calicineurin inhibitors cyclosporine and tacrolimus, the TNF-α inhibitors infliximab or adalimumab, or a neutralizing antibody(vedolizumab) directed against integrin α4β7. These therapeutic agents are of benefit for patients with refractory UC, but are not universally effective. Our recent research on TNF-α shedding demonstrated that inhibition of annexin(ANX) A2 may be a new therapeutic strategy for the prevention of TNF-α shedding during inflammatory bowel disease(IBD) inflammation. In this review, we provide an overview of therapeutic treatments that are effective and currently available for UC patients, as well as some that are likely to be available in the near future. We also propose the potential of ANX A2 as a new molecular target for IBD treatment. | Satoshi Tanida Tsutomu Mizoshita Keiji Ozeki Takahito Katano Hiromi Kataoka Takeshi Kamiya Takashi Joh | 2015 | World Journal of Gastroenterology2015，21，29： | 4 |
| 5 | 普萘洛尔治疗婴幼儿血管瘤:对血浆血管内皮细胞生长因子的作用显示文摘普萘洛尔治疗婴幼儿血管瘤(IH)效果显著,但其发病机制及其对血管内皮细胞生长因子(VEGF)的作用尚不清楚。该文旨在明确普萘洛尔的疗效和评估IH患者治疗后血浆VEGF的变化。35例IH患儿被纳入研究。口服普萘洛尔2.0 mg/kg·d,3次/d。以病变大小和颜色的视觉模拟量表(VAS)变化评估疗效。血浆VEGF浓度采用酶联免疫吸附试验测定,各组间进行比较。 | Ozeki M Nozawa A Hori T | 2017 | 中国口腔颌面外科杂志2017，15，1： | 3 |
| 6 | Third-look endoscopy prevents delayed bleeding after endoscopic submucosal dissection under antithrombotic therapy显示文摘BACKGROUND Postoperative delayed bleeding(PDB) after gastric endoscopic submucosal dissection(ESD) is the most common adverse event in patients receiving antithrombotics even with second-look endoscopy. Moreover, with the increasing prevalence of cardiovascular and cerebrovascular diseases in an aging population with associated lifestyle-related diseases, an increasing number of patients receive antithrombotics. Several attempts have been made to prevent PDB in aging population;however, a consensus has yet to be reached.AIM To examine the efficacy of third-look endoscopy(TLE) for PDB prevention.METHODS One hundred patients with early gastric neoplasms receiving antithrombotics were prospectively enrolled and subjected to ESD with TLE between February 2017 and July 2019. The primary endpoint was PDB rate, which was compared with our preset threshold. Furthermore, we divided the bleeding period into early-and late-onset PDB(E-PDB and L-PDB, respectively) and analyzed its rate. As a secondary analysis, we compared PDB rates with those of a historical control group, using propensity score matching, and calculated the PDB rates per antithrombotic agent use in each group.RESULTS In total, 96 patients and 114 specimens were finally evaluated. The overall PDB rate was 7.9%(9/114) [90%CI: 4.7-13.1, P = 0.005], while the late-and early-onset PDB rates(L-PDB and E-PDB) were 5.3% [90%CI: 2.7-9.9, P < 0.0001] and 2.6% [90%CI: 1.1-6.4, P = 0.51], respectively. Propensity score matching generated 58 matched pairs for TLE and control groups. No differences were found in overall PDB incidence(10.3% vs 20.7%, P = 0.12), whereas L-PDB occurrence significantly differed(5.2% vs 17.2%, P = 0.04) between groups. Considering antithrombotics' use, the overall PDB rate was higher for direct oral anticoagulants and multiple antithrombotics in the control group, while L-PDB incidence was lower in the TLE group for these agents(8.7% vs 23.1% and 5.0% vs 29.4%, respectively).CONCLUSION TLE for gastric ESD reduces overall PDB, and especially L-PDB incidence, among patients receiving antithrombotics. | Ryosuke Ikeda Kingo Hirasawa Chiko Sato Yuichiro Ozeki Atsushi Sawada Masafumi Nishio Takehide Fukuchi Ryosuke Kobayashi Makomo Makazu Masataka Taguri Shin Maeda | 2020 | World Journal of Gastroenterology2020，26，41： | 2 |
| 7 | Increased platelet sensitivity to collgen in individuals resistant to low-dose aspirin显示文摘 | Kawasaki T Ozeki Y Igawa T | 2000 | Stroke2000，31，3： | 1 |
| 8 | Work-family conflict, policies, and the job-life satisfaction relationship: A review and directions for organizational behavior-human resources research 显示文摘 | Kossek EE Ozeki C | 1998 | Journal of Applied Psychology1998，83，： | 1 |
| 9 | Retinoic acid repressed the expression of c-fos and c-jun and induced apoptosis in regenerating rat liver after partial hepatectomy显示文摘 | Ikuyo Tsukamoto | 1999 | Biochimica et Biophysica Acta1999，1450，： | 1 |
| 10 | Clinical resu1ts of intrapedicularpartial pediculectomy for lumbar foraminal stenosis显示文摘 | Ozeki N Aota Y Uesugi M | 2008 | J SpinalDisord Tech2008，5，： | 1 |
| 11 | Primary structure of maize pyruvate, orthophosphate dikinase as deduced from cDNA sequence 显示文摘 | MATSUOKA M OZEKI Y YAMAMOTO N | 1988 | JBiolChem1988，263，11： | 1 |
| 12 | Effects of mouth washing procedures on removal of budesonide inhaled by using Turbuhaler显示文摘 | Yokoyama H Yamamura Y Ozeki T | 2007 | Yakugaku Zasshi2007，127，8： | 1 |
| 13 | Pharmaeotherapeu- tic determinants for QTe interval prolongation in Japanese patients with mood disorder 显示文摘 | Okayasu H Ozeki Y Fujii K | 2012 | Pharmacopsychiatry2012，45，7： | 1 |
| 14 | HYPERSENSITIVITY OF MELATONIN SUPPRESSION IN RESPONSE TO LIGHT IN PATIENTS WITH DELAYED SLEEP PHASE SYNDROME1*显示文摘 | Harusuke Aoki Yuji Ozeki Naoto Yamada | 2001 | Chronobiology International2001，，2： | 1 |
| 15 | Biologic and clinical significance of the FLT3 transcript level in acute myeloid leukemia显示文摘 | KIYOI H HIROSE Y | 2004 | Blood2004，103，5： | 1 |
| 16 | Increased platelet sensitivity to collagen in individuals resistance to low dose aspirin显示文摘 | Kawasaki T Ozeki Y Igawa T | 2000 | Stroke2000，31，3： | 1 |
| 17 | Development of Toyota's transaxle for mini-van hybrid vehicles显示文摘 | ENDO H ITO M OZEKI T | 2003 | JSAE Review2003，24，1： | 1 |
| 18 | Mutation screening of the human Clock gene in circadian rhythm sleep disorders显示文摘 | Toshio Iwase Naofumi Kajimura Makoto Uchiyama Takashi Ebisawa Kimio Yoshimura Yuichi Kamei Kayo Shibui Keiko Kim Yoshinao Kudo Masaaki Katoh Tsuyoshi Watanabe Toru Nakajima Yuji Ozeki Mariko Sugishita Toru Hori Masaaki Ikeda Ryoichi Toyoshima Yuichi Inoue | 2002 | Psychiatry Research2002，，2： | 1 |
| 19 | Telomere length, telomerase activity, and expressions of human telomerase mRNA component (hTERT) and human telomerase reverse transcriptase (hTERT) mRNA in pulmonary neuroendocrine tumors显示文摘 | Nishio Y Nakanishi K Ozeki Y | 2007 | Jpn J Clin Oncol2007，37，1： | 1 |
| 20 | Controlled release from solid- dispersion composed of poly (ethylene oxide) carbopol interpolymer complex with vayious cross-linking degrees of Carbopoly显示文摘 | Ozeki T Yuasa H Kanaya Y | 2000 | J Controlled Release2000，63，3： | 1 |
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