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| 1 | Helicobacter pylori-related chronic gastritis as a risk factor for colonic neoplasms显示文摘To summarize the current views and insights on associations between Helicobacter pylori(H. pylori)-related chronic gastritis and colorectal neoplasm, we reviewed recent studies to clarify whether H. pylori infection/H. pylori-related chronic gastritis is associated with an elevated risk of colorectal neoplasm. Recent studies based on large databases with careful control for confounding variables have clearly demonstrated an increased risk of colorectal neoplasm associated with H. pylori infection. The correlation between H. pylori-related chronic atrophic gastritis(CAG) and colorectal neoplasm has only been examined in a limited number of studies. A recent large study using a national histopathological database, and our study based on the stage of H. pylori-related chronic gastritis as determined by serum levels of H. pylori antibody titer and pepsinogen, indicatedthat H. pylori-related CAG confers an increased risk of colorectal neoplasm, and more extensive atrophic gastritis will probably be associated with even higher risk of neoplasm. In addition, our study suggested that the activity of H. pylori-related chronic gastritis is correlated with colorectal neoplasm risk. H. pylori-related chronic gastritis could be involved in an increased risk of colorectal neoplasm that appears to be enhanced by the progression of gastric atrophy and the presence of active inflammation. | Izumi Inoue Jun Kato Hideyuki Tamai Mikitaka Iguchi Takao Maekita Noriko Yoshimura Masao Ichinose | 2014 | World Journal of Gastroenterology2014，20，6： | 25 |
| 2 | Serum manganese superoxide dismutase and thioredoxin are potential prognostic markers for hepatitis C virus-related hepatocellular carcinoma显示文摘AIM:To evaluate the clinical significance of oxidative stress markers in patients with hepatitis C virus(HCV)related hepatocellular carcinoma(HCC).METHODS:Sixty-four consecutive patients who were admitted to Kagoshima University Medical and Dental Hospital were enrolled in this retrospective study.All patients had chronic liver disease(CLD) due to infection with HCV.Thirty patients with HCV-related HCC,34 with HCV-related CLD without HCC(non-HCC),and 20 healthy volunteers(HVs) were enrolled.Possible associations between serum manganese superoxide dismutase(MnSOD) and thioredoxin(TRX) levels and clinical parameters or patient prognosis were analyzed over a mean follow-up period of 31.7 mo.RESULTS:The serum MnSOD levels were significantly higher in patients with HCV-related HCC than in patients without HCC(P = 0.03) or HVs(P < 0.001).Similarly,serum TRX levels were also significantly higher in patients with HCV-related HCC than in patients without HCC(P = 0.04) or HVs(P < 0.01).However,serum levels of MnSOD and TRX were not correlated in patients with HCC.Among patients with HCC,the overall survival rate(OSR) was lower in patients with MnSOD levels ≥ 110 ng/mL than in patients with levels < 110 ng/mL(P = 0.01),and the OSR tended to be lower in patients with TRX levels < 80 ng/mL(P = 0.05).In addition,patient prognosis with HCC was poorest with serum MnSOD levels ≥ 110 ng/mL and serum TRX levels < 80 ng/mL.Furthermore,a multivariate analysis using a Cox proportional hazard model and serum levels of five factors(MnSOD,prothrombin time,serum albumin,serum α-fetoprotein(AFP),and serum des-γ-carboxy prothrombin) revealed that MnSOD levels ≥ 110 ng/mL(risk ratio:4.12,95% confidential interval:1.22-13.88,P = 0.02) and AFP levels ≥ 40 ng/mL(risk ratio:6.75;95% confidential interval:1.70-26.85,P < 0.01) were independent risk factors associated with a poor patient prognosis.CONCLUSION:Serum MnSOD and TRX levels are potential clinical biomarkers that predict patient prognosis in HCV-related HCC. | Tsutomu Tamai Hirofumi Uto Yoichiro Takami Kouhei Oda Akiko Saishoji Masashi Hashiguchi Kotaro Kumagai Takeshi Kure Seiichi Mawatari Akihiro Moriuchi Makoto Oketani Akio Ido Hirohito Tsubouchi | 2011 | World Journal of Gastroenterology2011，17，44： | 7 |
| 3 | Wnt/β-Catenin Signaling: Components, Mechanisms, and Diseases显示文摘 | Bryan T. MacDonald Keiko Tamai Xi He | 2009 | Developmental Cell2009，，1： | 6 |
| 4 | The utility of diffusion-weighted MR imaging for differentiating uterine sarcomas from benign leiomyomas显示文摘 | Ken Tamai Takashi Koyama Tsuneo Saga Nobuko Morisawa Koji Fujimoto Yoshiki Mikami Kaori Togashi | 2008 | European Radiology2008，，4： | 6 |
| 5 | Efficacy of a novel auto-fluorescence imaging system with computer-assisted color analysis for assessment of colorectal lesions显示文摘AIM:To evaluate the efficacy of computer-assisted color analysis of colorectal lesions using a novel auto-fluorescence imaging(AFI)system to distinguish neoplastic lesions from non-neoplastic lesions and to predict the depth of invasion.METHODS:From January 2013 to April 2013,consecutive patients with known polyps greater than 5 mm in size who were scheduled to undergo endoscopic treatment at The Jikei University Hospital were prospectively recruited for this study.All lesions were evaluated using a novel AFI system,and color-tone sampling was performed in a region of interest determined from narrow band imaging or from chromoendoscopy findings without magnification.The green/red(G/R)ratio for each lesion on the AFI images was calculated automatically using a computer-assisted color analysis system that permits real-time color analysis during endoscopic procedures.RESULTS:A total of 88 patients with 163 lesions were enrolled in this study.There were significant differences in the G/R ratios of hyperplastic polyps(non-neoplastic lesions),adenoma/intramucosal cancer/submucosal(SM)superficial cancer,and SM deep cancer(P<0.0001).The mean±SD G/R ratios were 0.984±0.118in hyperplastic polyps and 0.827±0.081 in neoplastic lesions.The G/R ratios of hyperplastic polyps were significantly higher than those of neoplastic lesions(P<0.001).When a G/R ratio cut-off value of>0.89 was applied to determine non-neoplastic lesions,the sensitivity,specificity,positive predictive value(PPV),negative predictive value(NPV),and accuracy were 83.9%,82.6%,53.1%,95.6%and 82.8%,respectively.For neoplastic lesions,the mean G/R ratio was 0.834±0.080 in adenoma/intramucosal cancer/SM superficial cancer and 0.746±0.045 in SM deep cancer.The G/R ratio of adenoma/intramucosal cancer/SM superficial cancer was significantly higher than that of SM deep cancer(P<0.01).When a G/R ratio cut-off value of<0.77 was applied to distinguish SM deep cancers,the sensitivity,specificity,PPV,NPV,and accuracy were80.0%,84.4%,29.6%,98.1%and 84.1%,respectively.CONCLUSION:The novel AFI system with color analysis was effective in distinguishing non-neoplastic lesions from neoplastic lesions and might allow determination of the depth of invasion. | Hiroko Inomata Naoto Tamai Hiroyuki Aihara Kazuki Sumiyama Shoichi Saito Tomohiro Kato Hisao Tajiri | 2013 | World Journal of Gastroenterology2013，19，41： | 5 |
| 6 | Endovascular treatment of post-laparoscopic pancreatectomy splenic arteriovenous fistula with splenic vein aneurysm显示文摘Splenic arteriovenous fistulas(SAVFs) with splenic vein aneurysms are extremely rare entities. There have been no prior reports of SAVFs developing after laparoscopic pancreatectomy. Here, we report the first case. A 40-year-old man underwent a laparoscopic, spleen-preserving, distal pancreatectomy for an endocrine neoplasm of the pancreatic tail. Three months after surgery, a computed tomography(CT) scan demonstrated an SAVF with a dilated splenic vein. The SAVF, together with the splenic vein aneurysm, was successfully treated using percutaneous transarterial coil embolization of the splenic artery, including the SAVF and drainage vein. After the endovascular treatment, the patient's recovery was uneventful. He was discharged on postoperative day 6 and continues to be well 3 mo after discharge. An abdominal CT scan performed at his 3-mo follow-up demonstrated complete thrombosis of the splenic vein aneurysm, which had decreased to a 40 mm diameter. This is the first reported case of SAVF following a laparoscopic pancreatectomy and demonstrates the usefulness of endovascular treatment for this type of complication. | Tatsuo Ueda Satoru Murata Akira Yamamoto Jin Tamai Yuko Kobayashi Chiaki Hiranuma Hiroshi Yoshida Shin-ichiro Kumita | 2015 | World Journal of Gastroenterology2015，21，25： | 5 |
| 7 | Altered mucosal DNA methylation in parallel with highly active Helicobacter pylori -related gastritis显示文摘 | Takeichi Yoshida Jun Kato Takao Maekita Satoshi Yamashita Shotaro Enomoto Takayuki Ando Tohru Niwa Hisanobu Deguchi Kazuki Ueda Izumi Inoue Mikitaka Iguchi Hideyuki Tamai Toshikazu Ushijima Masao Ichinose | 2013 | Gastric Cancer2013，，4： | 3 |
| 8 | Ponseti method compared with soft-tissue release for the management of clubfoot:A meta-analysis study显示文摘AIM: To compare the functional outcomes of patients who underwent open surgery vs Ponseti method for the management of idiopathic clubfoot and to determine whether correlations exist between functional outcome and radiographic measurements.METHODS: A meta-analysis of the literature was conducted for studies concerning primary treatment of patients with idiopathic clubfoot. We searched PubM ed Medline, EMBASE, and the Cochrane Library databases from January 1950 to October 2011. Meta-analyses were performed on outcomes from 12 studies. Pooled means, SDs, and sample sizes were either identified in the results or calculated based on the results of each study.RESULTS: Overall, 835 treated idiopathic clubfeet in 516 patients were reviewed. The average follow-up was 15.7 years. Patients managed with Ponseti method did have a higher rate of excellent or good outcome than patients treated with open surgery(0.76 and 0.62, respectively), but not quite to the point of statistical significance(Q = 3.73, P = 0.053). Age at surgery wasnot correlated with the functional outcome for the surgically treated patients(r =-0.32, P = 0.68). A larger anteroposterior talocalcaneal angle was correlated with a higher rate of excellent or good outcomes(r = 0.80, P = 0.006). There were no other significant correlations between the functional and radiographic outcomes.CONCLUSION: The Ponseti method should be considered the initial treatment of idiopathic clubfeet, and open surgery should be reserved for clubfeet that cannot be completely corrected. | Marios G Lykissas Alvin H Crawford Emily A Eismann Junichi Tamai | 2013 | World Journal of Orthopedics2013，4，3： | 3 |
| 9 | Circulating miR-483-3p and miR-21 is highly expressed in plasma of pancreaticcancer显示文摘 | Makoto Abue Misa Yokoyama Rie Shibuya Keiichi Tamai Kazunori Yamaguchi Ikuro Sato Nobuyuki Tanaka Shin Hamada Tooru Shimosegawa Kazuo Sugamura Kennichi Satoh | 2015 | International Journal of Oncology2015，，2： | 3 |
| 10 | DISTRIBUTED WATER BALANCE WITH RIVER DYNAMIC-DIFFUSIVE FLOW ROUTING MODEL显示文摘This article focuses on the application of coupling both river dynamic and river diffusive modeling techniques that can be used with distributed water balance model.In an upstream watershed,both overland and river diffusive flows are routed by diffusive wave approximation of the free surface flow equations.In river downstream reaches,the river dynamic flow is routed by one-dimensional dynamic wave equations(full dynamic St.Venant equations with lateral flow).The developed model is applied in a part of Arakawa River basin,Kanto area,Japan.The geographic data of river cross sections could be accurately represented by an 11-point cross-section approximation.The effects of both the grid size and lateral flow on the simulated results of the river dynamic flow model were studied.The grid size should be greater than the average width of the river cross-sections.The lateral flow from small drainage systems has significant effects on the simulated results using the river dynamic flow model.The simulated results show good and acceptable agreements with the observed flow discharges and water depths.Both the river discharge and water depth at any location of river network of compound channels with one/two complex floodplains could be correctly estimated. | HASSAN Ahmed NORIO Tanaka NOBUYUKI Tamai | 2009 | Journal of Hydrodynamics2009，21，4： | 3 |
| 11 | Yeast and mammalian metallothioneins functionally substitute for yeast copper - zinc superoxide dismutase 显示文摘 | Tamai KT Gralla EB Ellerby LM | 1993 | Proc Natl Acad Sci USA1993，90，： | 2 |
| 12 | SGLT2 inhibitor lowers serum uric acid through alteration of uric acid transport activity in renal tubule by increased glycosuria显示文摘 | Yukihiro Chino Yoshishige Samukawa Soichi Sakai Yasuhiro Nakai Jun‐ichi Yamaguchi Takeo Nakanishi Ikumi Tamai | 2014 | Biopharm. Drug Dispos2014，，： | 2 |
| 13 | Hepatocellular carcinoma arising from non-cirrhotic nonalcoholic steatohepatitis显示文摘 | Natsuko Kawada Kazuho Imanaka Tsukasa Kawaguchi Chie Tamai Ryu Ishihara Takashi Matsunaga Kunihito Gotoh Terumasa Yamada Yasuhiko Tomita | 2009 | Journal of Gastroenterology2009，，12： | 2 |
| 14 | A case of chronic pancreatitis in which endoscopic ultrasonography was effective in the diagnosis of a pseudoaneurysm显示文摘Endoscopic ultrasonography (EUS) was performed on a patient being treated for chronic pancreatitis because a submucosal tumor was observed in the stomach during gastrointestinal endoscopy. As internal pulsa- tile blood flow on Doppler was present, the diagnosis of an aneurysm was made. The pseudoaneurysm of the left gastric artery was embolized with histoacryl and lipiodol and the splenic artery was embolized with coils at the location of the pseudoaneurysm to prevent hemorrhage. Follow up EUS confirmed the cessation of blood flow from the pseudoaneurysm. Clinicians encountering a gastric submucosal tumor-like protrusion in a patient with chronic pancreatitis should use EUS to investigate the possibility of a pseudoaneurysm, which must be treated as quickly as possible once identified. | Kazuhiro Fukatsu Kazuki Ueda Hiroki Maeda Yasunobu Yamashita Masahiro Itonaga Yoshiyuki Mori Kosaku Moribata Naoki Shingaki Hisanobu Deguchi Shotaro Enomoto Izumi Inoue Takao Maekita Mikitaka Iguchi Hideyuki Tamai Jun Kato Masao Ichinose | 2012 | World Journal of Gastrointestinal Endoscopy2012，4，7： | 2 |
| 15 | Novel hydroxyapatite ceramics with an interconnective porous structure exhibit superior osteoconduction in vivo显示文摘 | Tamai N Myoui A Tomita T | 2002 | J Biomed Mater Res2002，59，1： | 1 |
| 16 | Cardiovascular effect soferyt hropoietin and anemia correction显示文摘 | Vaziri ND Tamai O Kohno K | 2001 | Curr Opin Nephrol Hyoertens2001，10，5： | 1 |
| 17 | Genetic polymorphisms of human organic anion transporters OATP-C (SLC21A6)and OATP-B (SLC21A9): allele frequencies in the Japanese population and functional analysis 显示文摘 | Nozawa T Nakajima M Tamai I | 2002 | J Pharmacol Exptal Ther2002，302，2： | 1 |
| 18 | Automated foliage chamber method for long-term measurement of CO2 flux in the uppermost canopy显示文摘 | Miyama T Kominami Y Tamai K 2003 | 2003 | Tellus2003，55，： | 1 |
| 19 | Surface functionalization of mesoporous and microporous activated carbonsby immobilization of diamine 显示文摘 | Tamai H Shiraki K Yasuda H | 2006 | J Colloid and Interface Sci2006，295，： | 1 |
| 20 | Dorsal plating for comminuted intra-articular fractures of the distal end of the radius显示文摘 | OSADA D TAMAI K IWAMOTO A | 2004 | Hand Surg2004，9，2： | 1 |
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