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| 1 | Serum anti-Helicobacter pylori antibody titer and its association with gastric nodularity,atrophy,and age:A cross-sectional study显示文摘AIM To clarify the role of serum anti-Helicobacter pylori(H. pylori) antibody titers in gastric cancer.METHODS In this cross-sectional study, the effect of patients' baseline characteristics and endoscopic findings on their serum antibody titers were assessed. We evaluated consecutive patients who underwent esophagogastroduodenoscopy and their first evaluation for H. pylori infection using a serum antibody test. We excluded patients with a history of eradication therapy. The participants were divided into four groups according to their E-plate serum antibody titer. Patients with serum antibody titers < 3, 3-9.9, 10-49.9, and ≥ 50 U/m L were classified into groups A, B, C, and D, respectively. RESULTS In total, 874 participants were analyzed with 70%, 16%, 8.7%, and 5.1% of them in the groups A, B, C, and D, respectively. Patients in group C were older than patients in groups A and B. Gastric open-type atrophy, intestinal metaplasia, enlarged folds, diffuse redness, and duodenal ulcers were associated with a high titer. Regular arrangements of collecting venules, fundic gland polyps, superficial gastritis, and gastroesophageal reflux disease were related to a low titer. Multivariate analysis revealed that nodularity(P = 0.0094), atrophy(P = 0.0076), and age 40-59 years(vs age ≥ 60 years, P = 0.0090) were correlated with a high serum antibody titer in H. pylori-infected patients. Intestinal metaplasia and atrophy were related to age ≥ 60 years in group C and D.CONCLUSION Serum antibody titer changes with age, reflects gastric mucosal inflammation, and is useful in predicting the risk of gastric cancer. | Osamu Toyoshima Toshihiro Nishizawa Kosuke Sakitani Tadahiro Yamakawa Yoshiyuki Takahashi Nobutake Yamamichi Keisuke Hata Yasuyuki Seto Kazuhiko Koike Hidenobu Watanabe Hidekazu Suzuki | 2018 | World Journal of Gastroenterology2018，24，35： | 9 |
| 2 | Is ERCP really necessary in case of suspected spontaneous passage of bile duct stones?显示文摘AIM:To investigate the usefulness of magnetic resonance cholangiopancreatography (MRCP) and the need for endoscopic retrograde cholangiopancreatography (ERCP) in cases of suspected spontaneous passage of stones into the common bile duct.METHODS:Thirty-six patients with gallbladder stones were clinically suspected of spontaneous passage of stones into the common bile duct because they presented with clinical symptoms such as abdominal pain and fever,and showed signs of inflammatory reaction and marked rise of hepatobiliary enzymes.These symptoms resolved and they showed normalized values of blood biochemical parameters after conservative treatment without evidence of stones in the common bile duct on MRCP.All these patients were subjected to ERCP within 3 d of MRCP to check for the presence of stones.RESULTS:No stones were detected by ERCP in any patient,confi rming the results of MRCP.CONCLUSION:When clinical symptoms improve,blood biochemical parameters have normalized,and MRCP shows there are no stones in the common bile duct,it can be considered the stone has spontaneously passed and thus ERCP is not necessary. | Yuji Sakai Toshio Tsuyuguchi Takeshi Ishihara Seigo Yukisawa Tadashi Ohara Masaru Tsuboi Yoshihiko Ooka Kazuki Kato Kiyotake Katsuura Michio Kimura Makoto Takahashi Kazuhisa Nemoto Masaru Miyazaki Osamu Yokosuka | 2009 | World Journal of Gastroenterology2009，15，26： | 6 |
| 3 | Preoperative Gemcitabine-Based Chemoradiation Therapy for Resectable and Borderline Resectable Pancreatic Cancer显示文摘 | Hidenori Takahashi Hiroaki Ohigashi Kunihito Gotoh Shigeru Marubashi Terumasa Yamada Masayuki Murata Tatsuya Ioka Hiroyuki Uehara Masahiko Yano Osamu Ishikawa | 2013 | Annals of Surgery2013，，6： | 3 |
| 4 | Reversed portal flow: Clinical influence on the long-term outcomes in cirrhosis显示文摘AIM: To elucidate the natural history and the longitudinal outcomes in cirrhotic patients with non-forward portal flow(NFPF).METHODS: The present retrospective study consisted of 222 cirrhotic patients(120 males and 102 females; age, 61.7 ± 11.1 years). The portal hemodynamics were evaluated at baseline and during the observation period using both pulsed and color Doppler ultrasonography. The diameter(mm), flow direction, mean flow velocity(cm/s), and mean flow volume(m L/min) were assessed at the portal trunk, the splenic vein, the superior mesenteric vein, and the collateral vessels. The average values from 2 to 4 measurements were used for the data analysis. The portal flow direction was defined as follows: forward portal flow(FPF) for continuous hepatopetal flow; bidirectional flow for to-and-fro flow; and reversed flow for continuous hepatofugal flow. The bidirectional flow and the reversed flow were classified as NFPF in this study. The clinical findings and prognosis were compared between the patients with FPF and those with NFPF. The median follow-up period was 40.9 mo(range, 0.3-156.5 mo).RESULTS: Twenty-four patients(10.8%) demonstrated NFPF, accompanied by lower albumin level, worse ChildPugh scores, and model for end-stage liver disease scores. The portal hemodynamic features in the patients with NFPF were smaller diameter of the portal trunk;presence of short gastric vein, splenorenal shunt, or inferior mesenteric vein; and advanced collateral vessels(diameter > 8.7 mm, flow velocity > 10.2 cm/s, and flow volume > 310 m L/min). The cumulative incidence rates of NFPF were 6.5% at 1 year, 14.5% at 3 years, and 23.1% at 5 years. The collateral vessels characterized by flow velocity > 9.5 cm/s and those located at the splenic hilum were significant predictive factors for developing NFPF. The cumulative survival rate was significantly lower in the patients with NFPF(72.2% at 1 year, 38.5% at 3 years, 38.5% at 5 years) than in those with forward portal flow(84.0% at 1 year, 67.8% at 3 years, 54.3% at 5 years, P = 0.0123) using the Child-Pugh B and C classifications.CONCLUSION: NFPF has a significant negative effect on the prognosis of patients with worse liver function reserve, suggesting the need for careful management. | Takayuki Kondo Hitoshi Maruyama Tadashi Sekimoto Taro Shimada Masanori Takahashi Osamu Yokosuka | 2015 | World Journal of Gastroenterology2015，21，29： | 3 |
| 5 | Magnifying chromoscopy, a novel and useful technique for colonoscopy in ulcerative colitis显示文摘Ulcerative colitis (UC) is a chronic inflammatory bowel disorder characterized by exacerbations and remissions. The degree of inflammation as assessed by conventional colonoscopy is a reliable parameter of disease activity. However, even when conventional colonoscopy suggests remission and normal mucosal findings, microscopic abnormalities may persist, and relapse may occur later. Patients with long-standing, extensive ulcerative colitis have an increased risk of developing colorectal cancer. Ulcerative colitis-associated colorectal cancer is characterized by an early age at onset, poorly differentiated tumor cells, mucinous carcinoma, and multiple lesions. Early detection of dysplasia and colitic cancer is thus a prerequisite for survival. A relatively new method, magnifying chromoscopy, is thought to be useful for the early detection and diagnosis of dysplasia and colitic cancer, as well as the prediction of relapse. | Takafumi Ando Hironao Takahashi Osamu Watanabe Osamu Maeda Kazuhiro Ishiguro Daisuke Ishikawa Motofusa Hasegawa Naoki Ohmiya Yasumasa Niwa Hidemi Goto | 2007 | World Journal of Gastroenterology2007，13，18： | 3 |
| 6 | Application of novel magnified single balloon enteroscopy for a patient with Cronkhite-Canada syndrome显示文摘We present a case of Cronkhite-Canada syndrome(CCS) in which the entire intestine was observed using a prototype of magnifying single-balloon enteroscope(SIF Y-0007, Olympus). CCS is a rare, non-familial gastrointestinal polyposis with ectodermal abnormalities. To our knowledge, this is the first report showing magnified intestinal lesions of CCS. A 73-year-old female visited our hospital with complaints of diarrhea and dysgeusia. The blood test showed mild anemia and hypoalbuminemia. The esophagogastroduodenoscopy and colonoscopy revealed diffuse and reddened sessile to semi-pedunculated polyps, resulting in the diagnosis of CCS. In addition to the findings of conventional balloon-assisted enteroscopy or capsule endoscopy, magnifying observation revealed tiny granular structures, non-uniformity of the villus, irregular caliber of the loop-like capillaries, scattered white spots in the villous tip, and patchy redness of the villus. Histologically, the scattered white spots and patchy redness of the villus reflect lymphangiectasia and bleeding to interstitium, respectively. | Masaki Murata Shigeki Bamba Kenichiro Takahashi Hirotsugu Imaeda Atsushi Nishida Osamu Inatomi Tomoyuki Tsujikawa Ryoji Kushima Mitsushige Sugimoto Akira Andoh | 2017 | World Journal of Gastroenterology2017，23，22： | 2 |
| 7 | Successful embolization assisted by covered stents for a pseudoaneurysm following pancreatic surgery显示文摘Delayed intra-abdominal hemorrhage after pancreatic surgery is a potentially lethal complication.Transarterial coil embolization and/or the placing of an endovascular stent are minimally invasive and effective procedures.An artery that is extensively eroded and rendered friable due to operative skeletonization or postoperative inflammation sometimes contributes to delayed intra-abdominal hemorrhage or rebleeding after coil embolization.This report presents a case of successful management of postoperative hemorrhage in a-74-year-old Japanese male.He experienced bleeding from a pseudoaneurysm of the brittle hepatic artery following total pancreatectomy.Initially the pseudoaneurysm was successfully treated with covered coronary stent-grafts,but rebleeding occurred 1 mo later due to the brittleness of the artery.Rebleeding was definitively managed by the complete packing of the stent by coil embolization.He remains stable at 18 mo following the f inal embolization.A stent graft can be used for protecting a brittle artery to avoid injury by coil embolization. | Koji Tanaka Hiroaki Ohigashi Hidenori Takahashi Kunihito Gotoh Terumasa Yamada Isao Miyashiro Masahiko Yano Osamu Ishikawa | 2010 | World Journal of Gastrointestinal Surgery2010，2，9： | 2 |
| 8 | CD74 Is a Novel Prognostic Factor for Patients with Pancreatic Cancer Receiving Multimodal Therapy显示文摘 | Shigenori Nagata Yu-Fen Jin Katsuhiko Yoshizato Miki Tomoeda Misa Song Norishige Iizuka Masanori Kitamura Hidenori Takahashi Hidetoshi Eguchi Hiroaki Ohigashi Osamu Ishikawa Yasuhiko Tomita | 2009 | Annals of Surgical Oncology2009，，： | 2 |
| 9 | Kyoto classification in patients who developed multiple gastric carcinomas after Helicobacter pylori eradication显示文摘BACKGROUND Endoscopic Kyoto classification predicts gastric cancer risk;however,the score in the patients with primary gastric cancer after Helicobacter pylori(H.pylori)eradication therapy is unknown.AIM To elucidate the Kyoto classification score in patients with both single gastric cancer and multiple gastric cancers developed after H.pylori eradication.METHODS The endoscopist recorded the Kyoto classification at the endoscope and the Kyoto classification score at the time of the first diagnosis of gastric cancer after H.pylori eradication.The score was compared between single gastric cancer group and multiple gastric cancers group.RESULTS The Kyoto score at the time of diagnosis of 45 cases of gastric cancer after H.pylori eradication was 4.0 points in average.The score was 3.8 points in the single gastric cancer group,and 5.1 points in the multiple gastric cancers group.The multiple group had a significantly higher score than the single group(P=0.016).In the multiple gastric cancers group,all the patients(7/7)had 5 or higher Kyoto score,while in single gastric cancer group,the proportion of patients with a score of 5 or higher was less than half,or 44.7%(17/38).CONCLUSION Patients diagnosed with gastric cancer after H.pylori eradication tended to have advanced gastritis.In particular,in cases of multiple gastric cancers developed after H.pylori eradication,the endoscopic Kyoto classification score tended to be 5 or higher in patients with an open type atrophic gastritis and the intestinal metaplasia extended to the corpus. | Kosuke Sakitani Toshihiro Nishizawa Akira Toyoshima Shuntaro Yoshida Tatsuya Matsuno Tomoharu Yamada Masatoshi Irokawa Yoshiyuki Takahashi Yousuke Nakai Osamu Toyoshima Kazuhiko Koike | 2020 | World Journal of Gastrointestinal Endoscopy2020，12，9： | 2 |
| 10 | Plasma levodopa peak delay and impaired gastric emptying in Parkinson’s disease显示文摘 | Hirokazu Doi Ryuji Sakakibara Mitsutoshi Sato Tohru Masaka Masahiko Kishi Akihiko Tateno Fuyuki Tateno Yohei Tsuyusaki Osamu Takahashi | 2012 | Journal of the Neurological Sciences . 2012 (1-2)2012，，1： | 2 |
| 11 | Prognostic Values of Matrix Metalloproteinase Family Expression in Human Colorectal Carcinoma显示文摘 | Toshimichi Asano Mitsuhiro Tada Shaoqiang Cheng Norihiro Takemoto Taro Kuramae Motoki Abe Osamu Takahashi Masaki Miyamoto Jun-Ichi Hamada Tetsuya Moriuchi Satoshi Kondo | 2008 | Journal of Surgical Research2008，，1： | 2 |
| 12 | Efficacy of MK615 for the treatment of patients with liver disorders显示文摘AIM:To investigate the hepatoprotective effect of MK615,a Japanese apricot extract,in an animal model,and its clinical therapeutic effect.METHODS:Wistar rats were administered physiological saline(4 mL/kg) or MK615 solution(4 mL/kg) for 7 d.On the sixth d,acute hepatic injury was induced by administering a single intraperitoneal injection(ip) of D-galactosamine hydrochloride(D-GalN)(600 mg/kg).Plasma levels of alanine aminotransferase(ALT) and aspartate aminotransferase(AST) were determined,and liver tissues were used for histopathological analysis.Fifty-eight patients with liver disorders [hepatitis C(n = 40),non-alcoholic fatty liver disease(n = 15),and autoimmune liver disease(n = 3)] were orally administered commercially available Misatol ME-containing MK615(13 g/d) daily for 12 wk.Blood and urine were sampled immediately before and 6 wk,12 wk,and 16 wk after the start of intake to measure various biochemical parameters.The percentage change in ALT and AST levels after 12 wk from the pre-intake baseline served as a primary endpoint.RESULTS:D-GalN effectively induced acute hepatic injury in the rats.At 48 h after the ip injection of D-GalN,the plasma levels of ALT(475.6 ± 191.5 IU/L vs 225.3 ± 194.2 IU/L,P < 0.05) and AST(1253.9 ± 223.4 IU/L vs 621.9 ± 478.2 IU/L,P < 0.05) in the MK615 group were significantly lower than the control group.Scattered single cell necrosis,loss of hepatocytes,and extensive inflammatory cell infiltration were observed in hepatic tissue samples collected from the control group.However,these findings were less pronounced in the group receiving MK615.At the end of the clinical study,serum ALT and AST levels were significantly decreased compared with pre-intake baseline levels from 103.5 ± 58.8 IU/L to 71.8 ± 39.3 IU/L(P < 0.05) and from 93.5 ± 55.6 IU/L to 65.5 ± 34.8 IU/L(P < 0.05),respectively.A reduction of ≥ 30% from the pre-study baseline ALT level was observed in 26(45%) of the 58 patients,while 25(43%) patients exhibited similar AST level reductions.The chronic hepatitis C group exhibited significant ALT and AST level reductions from 93.4 ± 51.1 IU/L to 64.6 ± 35.1 IU/L(P < 0.05) and from 94.2 ± 55.5 IU/L to 67.2 ± 35.6 IU/L(P < 0.05),respectively.A reduction of ≥ 30% from the pre-study baseline ALT level was observed in 20(50%) of the 40 patients.ALT levels in both the combined ursodeoxycholic acid(UDCA) treatment and the UDCA uncombined groups were significantly lower after Misatol ME administration.MK615 protected hepatocytes from D-GalN-induced cytotoxicity in rats.Misatol ME decreased elevated ALT and AST levels in patients with liver disorders.CONCLUSION:These results suggest that MK615 and Misatol ME are promising hepatoprotective agents for patients with liver disorders. | Atsushi Hokari Tomohisa Ishikawa Hisao Tajiri Takahide Matsuda Osamu Ishii Nobuyuki Matsumoto Chiaki Okuse Hideaki Takahashi Takeshi Kurihara Ko-ichi Kawahara Ikuro Maruyama Mikio Zeniya | 2012 | World Journal of Gastroenterology2012，18，31： | 2 |
| 13 | CD44 Variant Regulates Redox Status in Cancer Cells by Stabilizing the xCT Subunit of System xc ? and Thereby Promotes Tumor Growth显示文摘 | Takatsugu Ishimoto Osamu Nagano Toshifumi Yae Mayumi Tamada Takeshi Motohara Hiroko Oshima Masanobu Oshima Tatsuya Ikeda Rika Asaba Hideki Yagi Takashi Masuko Takatsune Shimizu Tomoki Ishikawa Kazuharu Kai Eri Takahashi Yu Imamura Yoshifumi Baba Mitsuyo O | 2011 | Cancer Cell2011，，3： | 2 |
| 14 | Meta-analysis: somatostatin or its long-acting analogue, octreotide, for prophylaxis against post-ERCP pancreatitis显示文摘 | Fumio Omata Gautam Deshpande Yasuharu Tokuda Osamu Takahashi Sachiko Ohde David L. Carr-Locke Joshua L. Jacobs Tetsuya Mine Tsuguya Fukui | 2010 | Journal of Gastroenterology2010，，8： | 1 |
| 15 | Meta-analysis: somatostatin or its long-acting analogue, octreotide, for prophylaxis against post-ERCP pancreatitis显示文摘 | Fumio Omata Gautam Deshpande Yasuharu Tokuda Osamu Takahashi Sachiko Ohde David L. Carr-Locke Joshua L. Jacobs Tetsuya Mine Tsuguya Fukui | 2010 | Journal of Gastroenterology2010，，8： | 1 |
| 16 | Prognostic significance of lymph node involvement in middle and distal bile duct cancer显示文摘 | Ryoko Sasaki Masahiro Takahashi Osamu Funato Hiroyuki Nitta Masahiko Murakami Hidenobu Kawamura Takayuki Suto Senji Kanno Kazuyoshi Saito | 2001 | Surgery2001，，6： | 1 |
| 17 | Downregulation of indoleamine-2,3-dioxygenase in cervical cancer cellssuppresses tumor growth by promoting natural killer cell accumulation显示文摘 | Naoto Sato Yasushi Saga Hiroaki Mizukami Dongdong Wang Suzuyo Takahashi Hiroaki Nonaka Hiroyuki Fujiwara Yuji Takei Shizuo Machida Osamu Takikawa Keiya Ozawa Mitsuaki Suzuki | 2012 | Oncology Reports2012，，5： | 1 |
| 18 | Intraductal polypoid growth variant of pancreatic acinar cell carcinoma metastasizing to the intrahepatic bile duct 6 years after surgery: A case report and literature review显示文摘 | Shigenori Nagata Miki Tomoeda Chiaki Kubo Hidenori Yoshizawa Michiko Yuki Masanori Kitamura Akemi Takenaka Hiroyuki Uehara Kazuhiro Katayama Katsuyuki Nakanishi Hidenori Takahashi Hiroaki Ohigashi Osamu Ishikawa Yasuhiko Tomita | 2012 | Pancreatology2012，，： | 1 |
| 19 | CEA-Antigen and SCC-Antigen mRNA Expression in Peripheral Blood Predict Hematogenous Recurrence After Resection in Patients with Esophageal Cancer显示文摘 | Koji Tanaka Masahiko Yano Masaaki Motoori Kentaro Kishi Isao Miyashiro Tatsushi Shingai Kunihito Gotoh Shingo Noura Hidenori Takahashi Masayuki Ohue Terumasa Yamada Hiroaki Ohigashi Takashi Yamamoto Tomoyuki Yamasaki Yuichiro Doki Osamu Ishikawa | 2010 | Annals of Surgical Oncology2010，，： | 1 |
| 20 | Histopathological prognostic factors predicting para-aortic lymph node metastasis in patients with endometrioid uterine cancer显示文摘 | Yuko Karube Toshio Fujimoto Osamu Takahashi Hiroshi Nanjyo Hideki Mizunuma Nobuo Yaegashi Toru Sugiyama Hirohisa Kurachi Akira Sato Toshinobu Tanaka | 2010 | Gynecologic Oncology2010，，2： | 1 |
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