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1Removal of diminutive colorectal polyps: A prospective randomized clinical trial between cold snare polypectomy and hot forceps biopsy显示文摘AIM To compare the efficacy and safety of cold snare polypectomy(CSP) and hot forceps biopsy(HFB) for diminutive colorectal polyps.METHODS This prospective, randomized single-center clinical trial included consecutive patients ≥ 20 years of age with diminutive colorectal polyps 3-5 mm from December 2014 to October 2015. The primary outcome measures were en-bloc resection(endoscopic evaluation) and complete resection rates(pathological evaluation). The secondary outcome measures were the immediate bleeding or immediate perforation rate after polypectomy, delayed bleeding or delayed perforation rate after polypectomy, use of clipping for bleeding or perforation, and polyp retrieval rate. Prophylactic clipping after polyp removal wasn't routinely performed.RESULTS Two hundred eight patients were randomized into the CSP(102), HFB(106) and 283 polyps were evaluated(CSP: 148, HFB: 135). The en-bloc resection rate was significantly higher with CSP than with HFB [99.3%(147/148) vs 80.0%(108/135), P < 0.0001]. The complete resection rate was significantly higher with CSP than with HFB [80.4%(119/148) vs 47.4%(64/135), P < 0.0001]. The immediate bleeding rate was similar between the groups [8.6%(13/148) vs 8.1%(11/135), P = 1.000], and endoscopic hemostasis with hemoclips was successful in all cases. No cases of perforation or delayed bleeding occurred. The rate of severe tissue injury to the pathological specimen was higher HFB than CSP [52.6%(71/135) vs 1.3%(2/148), P < 0.0001]. Polyp retrieval failure was encountered CSP(7), HFB(2).CONCLUSION CSP is more effective than HFB for resecting diminutive polyps. Further long-term follow-up study is required.Yoriaki Komeda Hiroshi Kashida Toshiharu Sakurai George Tribonias Kazuki Okamoto Masashi Kono Mitsunari Yamada Teppei Adachi Hiromasa Mine Tomoyuki Nagai Yutaka Asakuma Satoru Hagiwara Shigenaga Matsui Tomohiro Watanabe Masayuki Kitano Takaaki Chikugo Yasutaka Chiba Masatoshi Kudo 2017World Journal of Gastroenterology2017,23,2:20
2Prognostic significance of the lymphocyte-to-monocyte ratio in patients with metastatic colorectal cancer显示文摘AIM:To evaluate the prognostic significance of the lymphocyte to monocyte ratio(LMR) in patients with unresectable metastatic colorectal cancer who received palliative chemotherapy.METHODS:A total of 104 patients with unresectable metastatic colorectal cancer who underwent palliative chemotherapy were enrolled. The LMR was calculated from blood samples by dividing the absolute lymphocyte count by the absolute monocyte count. Pretreatment LMR values were measured within one week before the initiation of chemotherapy,while posttreatment LMR values were measured eight weeks after the initiation of chemotherapy.RESULTS:The median pre-treatment LMR was 4.16(range:0.58-14.06). We set 3.38 as the cut-off level based on the receiver operating characteristic curve. Based on the cut-off level of 3.38,66 patients were classified into the high pre-treatment LMR group and 38 patients were classified into the low pretreatment LMR group. The low pre-treatment LMR group had a significantly worse overall survival rate(P = 0.0011). Moreover,patients who demonstrated low pre-treatment LMR and normalization after treatmentexhibited a better overall survival rate than the patients with low pre-treatment and post-treatment LMR values.CONCLUSION:The lymphocyte to monocyte ratio is a useful prognostic marker in patients with unresectable metastatic colorectal cancer who receive palliative chemotherapy.Masatsune Shibutani Kiyoshi Maeda Hisashi Nagahara Hiroshi Ohtani Katsunobu Sakurai Sadaaki Yamazoe Kenjiro Kimura Takahiro Toyokawa Ryosuke Amano Hiroaki Tanaka Kazuya Muguruma Kosei Hirakawa 2015World Journal of Gastroenterology2015,21,34:19
3Maintenance for healed erosive esophagitis:PhaseⅢcomparison of vonoprazan with lansoprazole显示文摘AIM To compare vonoprazan 10 and 20 mg vs lansoprazole 15 mg as maintenance therapy in healed erosive esophagitis(EE).METHODS A total of 607 patients aged ≥ 20 years, with endoscopically-confirmed healed EE following 8 wk of treatment with vonoprazan 20 mg once daily, were randomized 1:1:1 to receive lansoprazole 15 mg(n = 201), vonoprazan 10 mg(n = 202), or vonoprazan 20 mg(n = 204), once daily. The primary endpoint of the study was the rate of endoscopically-confirmed EE recurrence during a 24-wk maintenance period. The secondary endpoint was the EE recurrence rate at Week 12 during maintenance treatment. Additional efficacy endpoints included the incidence of heartburn and acid reflux, and the EE healing rate 4 wk after the initiation of maintenance treatment. Safety endpoints comprised adverse events(AEs), vital signs, electrocardiogram findings, clinical laboratory results, serum gastrin and pepsinogen Ⅰ/Ⅱ levels, and gastric mucosa histopathology results.RESULTS Rates of EE recurrence during the 24-wk maintenance period were 16.8%, 5.1%, and 2.0% with lansoprazole 15 mg, vonoprazan 10 mg, and vonoprazan 20 mg, respectively. Vonoprazan was shown to be non-inferior to lansoprazole 15 mg(P < 0.0001 for both doses). In a post-hoc analysis, EE recurrence at Week 24 was significantly reduced with vonoprazan at both the 10 mg and the 20 mg dose vs lansoprazole 15 mg(5.1% vs 16.8%, P = 0.0002, and 2.0% vs 16.8%, P < 0.0001, respectively); by contrast, the EE recurrence rate did not differ significantly between the two doses of vonoprazan(P = 0.1090). The safety profiles of vonoprazan 10 and 20 mg were similar to that of lansoprazole 15 mg in patients with healed EE. Treatment-related AEs were reported in 11.4%, 10.4%, and 10.3% of patients in the lansoprazole 15 mg, vonoprazan 10 mg, and vonoprazan 20 mg arms, respectively.CONCLUSION Our findings confirm the non-inferiority of vonoprazan 10 and 20 mg to lansoprazole 15 mg as maintenance therapy for patients with healed EE.Kiyoshi Ashida Katsuhiko Iwakiri Naoki Hiramatsu Yuuichi Sakurai Tetsuharu Hori Kentarou Kudou Akira Nishimura Eiji Umegaki 2018World Journal of Gastroenterology2018,24,14:18
4Clinical outcomes and risk factors for perforation in gastric endoscopic submucosal dissection: A prospective pilot study显示文摘AIM: To evaluate clinical outcomes and risk factors for endoscopic perforation during endoscopic submucosal dissection (ESD) in a prospective study. METHODS: We investigated the clinical outcomes and risk factors for the development of perforation in 98 consecutive gastric neoplasms undergoing ESD regarding. Demographic and clinical parameters including patient-, tumor-, and treatment-related factors, clinical parameters, and duration of hospital stay were analyzed for risk factors for perforation. In subgroup analysis, we also compared the clinical outcomes between perforation and 'silent' free air without endoscopically visible perforation detected only by computed tomography.RESULTS: Perforation was identified in 8.2% of patients. All patients were managed conservatively by the administration of antibiotics. The mean procedure time was significantly longer in patients with endoscopic perforation than in those without. According to the receiver-operating characteristic analysis, the resulting cutoff value of the procedure time for perforation was 115 min (87.5% sensitivity, 56.7% specificity). Prolonged procedure time (≥ 115 min) was associated with an increased risk of perforation (odds ratio 9.15; 95%CI: 1.08-77.54; P = 0.04). Following ESD, body temperature and C-reactive protein level were significantly higher in patients with perforation than in those without (P = 0.02), whereas there was no difference between these patient groups on the starting day of oral intake or of hospitalization. In subgroup analysis, the post-ESD clinical course was not different between endoscopic perforation and silent free air. CONCLUSION: Only prolonged procedure time (≥ 115 min) was significantly associated with perforation. The clinical outcomes of perforation are favorable and are comparable to those of patients with or without silent free air.Jiro Watari Toshihiko Tomita Fumihiko Toyoshima Jun Sakurai Takashi Kondo Haruki Asano Takahisa Yamasaki Takuya Okugawa Hisatomo Ikehara Tadayuki Oshima Hirokazu Fukui Hiroto Miwa 2013World Journal of Gastrointestinal Endoscopy2013,5,6:17
5Predictive findings forHelicobacter pylori-uninfected, -infected and -eradicated gastric mucosa: Validation study显示文摘AIM:To validate the usefulness of screening endoscopy findings for predictingHelicobacter pylori (H. pylori) infection status. METHODS:H. pylori infection status was determined by histology, serology, and the urea breast test in 77 consecutive patients who underwent upper endoscopy. Based on the findings, patients were categorized as H. pylori -uninfected, -infected, or -eradicated cases. Using six photos of certain sites in the stomach per case, we determined the presence or absence of the following endoscopic findings:regular arrangement of collecting venules (RAC), linear erythema, hemorrhage, fundic gland polyp (FGP), atrophic change, rugal hyperplasia, edema, spotty erythema, exudate, xanthoma, and mottled patchy erythema (MPE). The diagnostic odds ratio (DOR) and inter-observer agreement (Kappa value) for these 11 endoscopic findings used in the determination of H. pylori infection status were calculated. RESULTS:Of the 77 patients [32 men and 45 women; mean age (SD), 39.7 (13.4) years] assessed, 28 were H. pylori uninfected, 28 were infected, and 21 were eradicated. DOR values were significantly high (< 0.05) for the following H. pylori cases:uninfected cases with RAC (11.5), linear erythema (24.5), hemorrhage (4.1), and FGP (34.5); for infected cases with atrophic change (8.67), rugal hyperplasia (15.8), edema (14.2), spotty erythema (11.5), and exudate (3.52); and for eradicated cases with atrophic change (32.4) and MPE (103.0). Kappa values were excellent for FGP (0.93), good for RAC (0.63), hemorrhage (0.79), atrophic change (0.74), and MPE (0.75), moderate for linear erythema (0.51), rugal hyperplasia (0.49), edema (0.58), spotty erythema (0.47), and exudate (0.46), and poor for xanthoma (0.19). CONCLUSION:The endoscopic findings of RAC, hemorrhage, FGP, atrophic change, and MPE will be useful for predicting H. pylori infection status.Kazuhiro Watanabe Naoyoshi Nagata Ryo Nakashima Etsuko Furuhata Takuro Shimbo Masao Kobayakawa Toshiyuki Sakurai Koh Imbe Ryota Niikura Chizu Yokoi Junichi Akiyama Naomi Uemura 2013World Journal of Gastroenterology2013,19,27:17
6Comparative study: Vonoprazan and proton pump inhibitors in Helicobacter pylori eradication therapy显示文摘AIM To compare the effectiveness and safety of vonoprazan-based therapy with proton pump inhibitor(PPI)-based therapies to treat Helicobacter pylori(H. pylori).METHODS We retrospectively analysed data from first-line(vonoprazan or PPI with 200 mg clarithromycin and 750 mg amoxicillin twice daily for 7 d)(n = 1353) and second-line(vonoprazan or PPI with 250 mg metronidazole and 750 mg amoxicillin twice daily for 7 d)(n = 261) eradication treatments for H. pylori- positive patients with associated gastrointestinal diseases from April 2014 to December 2015 at Hattori Clinic, Japan. The primary endpoint was the eradication rate, which was assessed with a full analysis set. The secondary endpoints were adverse events and related factors.RESULTS After the first-line treatments, the eradication rates for vonoprazan, esomeprazol, rabeprazole, and lansoprazole were 87.9%(95%CI: 84.9%-90.5%), 71.6%(95%CI: 67.5%-75.5%), 62.9%(95%CI: 52.0%-72.9%), and 57.3%(95%CI: 50.4%-64.1%), respectively. The vonoprazan eradication rate was significantly higher than that of the PPIs(P < 0.01). Interestingly, smoking did not affect the H. pylori eradication rate in the vonoprazan group(P = 0.34), whereas it decreased the rates in the PPI groups(P = 0.013). The incidence of adverse events in the vonop-razan group was not different from the PPI group(P = 0.054), although the vonoprazan group exhibited a wider range of adverse events. Vonoprazan-based triple therapy was highly effective as a second-line treatment, with an eradication rate similar to that of PPI-based therapy.CONCLUSION Vonoprazan might be superior to PPIs in first-line H. pylori therapy, particularly for smokers. However, caution is required due to possible adverse events.Kouichi Sakurai Hiroko Suda Yumi Ido Takayuki Takeichi Ayako Okuda Kiwamu Hasuda Masahiro Hattori 2017World Journal of Gastroenterology2017,23,4:16
7Semaphorin signaling in angiogenesis, lymphangiogenesis and cancer显示文摘Angiogenesis,从先存在的新血容器的形成 vasculature,为许多生理的过程,和异常 angiogenesis 是必要的贡献一些最流行的人的疾病,包括癌症。Angiogenesis 被在 pro-angiogenic 和 anti-angiogenic 信号之间的精细的平衡控制。当发信号的 pro-angiogenic 广泛地被调查了时,怎么发展地调整了,自然地发生的 anti-angiogenic 分子阻止过多的生长脉管并且淋巴管仍然糟糕被理解。在这评论,我们总结上的当前的知识 semaphorins 和他们的受体, plexins 和 neuropilins,控制正常和病理学的 angiogenesis,与在脉管、淋巴的 endothelial 房间表明电路的调整 semaphorin 的 anti-angiogenic 上的一个重音。信息的这新兴的身体可以负担得起机会开发新奇 anti-angiogenic 治疗学的策略。Atsuko Sakurai Colleen Doci J Silvio Gutkind 2012Cell Research2012,22,1:15
8Endoscopic ultrasound-guided gallbladder drainage for acute cholecystitis: Long-term outcomes after removal of a self-expandable metal stent显示文摘AIM To assess the long-term outcomes of this procedure after removal of self-expandable metal stent(SEMS). The efficacy and safety of endoscopic ultrasoundguided gallbladder drainage(EUS-GBD) with SEMS were also assessed.METHODS Between January 2010 and April 2015, 12 patients with acute calculous cholecystitis, who were deemed unsuitable for cholecystectomy, underwent EUSGBD with a SEMS. EUS-GBD was performed under the guidance of EUS and fluoroscopy, by puncturing the gallbladder with a needle, inserting a guidewire, dilating the puncture hole, and placing a SEMS. TheSEMS was removed and/or replaced with a 7-Fr plastic pigtail stent after cholecystitis improved. The technical and clinical success rates, adverse event rate, and recurrence rate were all measured.RESULTS The rates of technical success, clinical success, and adverse events were 100%, 100%, and 0%, respectively. After cholecystitis improved, the SEMS was removed without replacement in eight patients, whereas it was replaced with a 7-Fr pigtail stent in four patients. Recurrence was seen in one patient(8.3%) who did not receive a replacement pigtail stent. The median follow-up period after EUS-GBD was 304 d(78-1492).CONCLUSION EUS-GBD with a SEMS is a possible alternative treatment for acute cholecystitis. Long-term outcomes after removal of the SEMS were excellent. Removal of the SEMS at 4-wk after SEMS placement and improvement of symptoms might avoid migration of the stent and recurrence of cholecystitis due to food impaction.Ken Kamata Mamoru Takenaka Masayuki Kitano Shunsuke Omoto Takeshi Miyata Kosuke Minaga Kentaro Yamao Hajime Imai Toshiharu Sakurai Tomohiro Watanabe Naoshi Nishida Masatoshi Kudo 2017World Journal of Gastroenterology2017,23,4:15
9Efficacy of treatment with rebamipide for endoscopic submucosal dissection-induced ulcers显示文摘AIM:To prospectively compare the healing rates of endoscopic submucosal dissection(ESD)-induced ulcers treated with either a proton-pump inhibitor(PPI)or rebamipide.METHODS:We examined 90 patients with early gastric cancer who had undergone ESD.All patients were administered an intravenous infusion of the PPI lansoprazole(20 mg)every 12 h for 2 d,followed by oral administration of lansoprazole(30 mg/d,5 d).After7-d treatment,the patients were randomly assigned to 2 groups and received either lansoprazole(30 mg/d orally,n=45;PPI group)or rebamipide(300 mg orally,three times a day;n=45;rebamipide group).At 4and 8 wk after ESD,the ulcer outcomes in the 2 groups were compared.RESULTS:No significant differences were noted in patient age,underlying disease,tumor location,Helicobacter pylori infection rate,or ESD-induced ulcersize between the 2 groups.At both 4 and 8 wk,the healing rates of ESD-induced ulcers were similar in the PPI-treated and the rebamipide-treated patients(4 wk:PPI,27.2%;rebamipide,33.3%;P=0.5341;8 wk:PPI,90.9%;rebamipide,93.3%;P=0.6710).At 8 wk,the rates of granulation lesions following ulcer healing were significantly higher in the PPI-treated group(13.6%)than in the rebamipide-treated group(0.0%;P=0.0103).Ulcer-related symptoms were similar in the2 treatment groups at 8 wk.The medication cost of 8-wk treatment with the PPI was 10945 yen vs 4889 yen for rebamipide.No ulcer bleeding or complications due to the drugs were observed in either treatment group.CONCLUSION:The healing rate of ESD-induced ulcers was similar with rebamipide or PPI treatment;however,rebamipide treatment is more cost-effective and prevents granulation lesions following ulcer healing.Masaki Takayama Shigenaga Matsui Masanori Kawasaki Yutaka Asakuma Toshiharu Sakurai Hiroshi Kashida Masatoshi Kudo 2013World Journal of Gastroenterology2013,19,34:15
10Current status in remnant gastric cancer after distal gastrectomy显示文摘Remnant gastric cancer(RGC) and gastric stump cancer after distal gastrectomy(DG) are recognized as the same clinical entity. In this review, the current knowledges as well as the non-settled issues of RGC are presented. Duodenogastric reflux and denervation of the gastric mucosa are considered as the two main factors responsible for the development of RGC after benign disease. On the other hand, some precancerous circumstances which already have existed at the time of initial surgery, such as atrophic gastritis and intestinal metaplasia, are the main factors associated with RGC after gastric cancer. Although eradication of Helicobacter pylori(H. pylori) in remnant stomach is promising, it is still uncertain whether it can reduce the risk of carcinogenesis. Periodic endoscopic surveillance after DG was reported useful in detecting RGC at an early stage, which offers a chance to undergo minimally invasive endoscopic treatment or laparoscopic surgery and leads to an improved prognosis in RGC patients. Future challenges may be expected to elucidate the benefit of eradication of H. pylori in the remnant stomach if it could reduce the risk for RGC, to build an optimal endoscopic surveillance strategy after DG by stratifying the risk for development of RGC, and to develop a specific staging system for RGC for the standardization of the treatment by prospecting the prognosis.Masaichi Ohira Takahiro Toyokawa Katsunobu Sakurai Naoshi Kubo Hiroaki Tanaka Kazuya Muguruma Masakazu Yashiro Naoyoshi Onoda Kosei Hirakawa 2016World Journal of Gastroenterology2016,22,8:15
11Modified boron neutron capture therapy for malignant gliomas performed using epithermal neutron and two boron compounds with different accumulation mechanisms: an efficacy study based on findings on neuroimages显示文摘Miyatake S Kawabata S Kafimoto Y Aoki A Yokoyama K Yamada M Kuroiwa T Tsuji M Imahori Y Kirihata M Sakurai Y Masunaga S Nagata K Maruhashi A Ono K 2005中国神经肿瘤杂志2005,3,4:14
12Contrast-enhanced intraoperative ultrasonography equipped with late Kupffer-phase image obtained by sonazoid in patients with colorectal liver metastases显示文摘AIM: To find occult metastases during hepatectomy in patients with colorectal cancer liver metastases (CRCLM), contrast-enhanced intraoperative ultrasonography (CE-IOUS) was performed using a new microbubble agent, sonazoid, which provides a parenchyma-specific contrast image based on its accumulation in the Kupffer cells. METHODS: Eight patients with CRCLM underwent CE- IOUS using sonazoid before hepatectomy. The liver was investigated during a late Kupffer-phase imaging, which is a valuable characteristic of sonazoid. RESULTS: CE-IOUS using sonazoid provided the early vascular- and sinusoidal-phase images for 10 min followed by the late Kupffer-phase image up to 30 min after the injection of sonazoid. IOUS did not provide new findings of metastatic lesion in the 8 patients. However, during the late Kupffer-phase image of sonazoid, a metastatic lesion was newly found in two of the 8 patients. These newly detected lesions were removed by an additional hepatectomy and histopathologically diagnosed as a metastasis. CONCLUSION: CE-IOUS using sonazoid can allow surgeons to investigate the whole liver with enough time and to find new metastases intraoperatively.Hiroshi Nakano Yasuo Ishida Toshiyuki Hatakeyama Kazuma Sakuraba Masahiro Hayashi Osamu Sakurai Kiyoshi Hataya 2008World Journal of Gastroenterology2008,14,20:10
13在哪个与狭窄的乐队成像放大了内视镜检查法的胃的联系 mucosa 的淋巴的组织淋巴瘤的一个盒子在诊断是有用的显示文摘 Recently, we reported a case of gastric mucosaassociated lymphoid tissue (MALT) lymphoma presenting with unique vascular features. In the report, we defined the tree-like appearance (TLA) on the images of abnormal blood vessels which resembled branches from the trunk of a tree in the shiny mucosa, in which the glandular structure was lost. The 67-year-old female was diagnosed with gastric MALT lymphoma. The patient received eradication therapy for H. pylori. Conventional endoscopy revealed multiple ill-delineated brownish depressions in the stomach and cobblestonelike mucosa was observed at the greater curvature to the posterior wall of the upper gastric body 7 mo after successful eradication. Unsuccessful treatment of gastric MALT lymphoma was suspected on conventional endoscopy. Conventional endoscopic observations found focal depressions and cobblestone-like appearance, and these lesions were subsequently observed using magnified endoscopy combined with narrow band imaging to identify abnormal vessels presenting with a TLA within the lesions. Ten biopsies were taken from the area where abnormal vessels were present within these lesions. Ten biopsies were also taken from the lesions without abnormal vessels as a control. A total of 20 biopsy samples were evaluated to determine whether the diagnosis of MALT lymphoma could be obtained histologically from each sample. A positive diagnosis was obtained in 8/10 TLA (+) sites and in 2/10 TLA(-) sites. Target biopsies of the site with abnormal blood vessels can potentially improve diagnostic accuracy of gastric MALT lymphoma.Kouichi Nonaka Keiko Ishikawa Shin Arai Masamitsu Nakao Michio Shimizu Takaki Sakurai Koji Nagata Makoto Nishimura Osamu Togawa Yasutoshi Ochiai Yutaka Sasaki Hiroto Kita 2012World Journal of Gastrointestinal Endoscopy2012,4,4:8
14Successful laparoscopic splenectomy after living-donor liver transplantation for thrombocytopenia caused by antiviral therapy显示文摘Although interferon (IFN) based therapy for recurrent hepatitis C virus (HCV) infection after liver transplantation has been widely accepted, it induces various adverse effects such as thrombocytopenia, resulting in its interruption. Recently, concomitant splenectomy at the time of living donor liver transplantation (LDLT) has been tried to overcome this problem, but this procedure leads to several complications such as excessive intraoperative bleeding and serious infection. A 60-year-old female received LDLT using a left lobe graft from her second son for liver failure caused by hepatitis C-related cirrhosis. Six months after LDLT, she was diagnosed as recurrent HCV infection by liver biopsy. IFN monotherapy was started from 7 mo after LDLT and her platelet count decreased to less than 50 000/μL, which thus made it necessary to discontinue the treatment. We decided to attempt laparoscopic splenectomy (LS) under general anesthesia. Since intra-abdominal findings did not show any adhesion formations around the spleen, LS could be successfully performed. After LS, since her platelet count immediately increased to 225 000/μL 14 d after operation, IFN therapy was restarted and we could convert the combination therapy of IFN and ribavirin, resulting in no detectable viral marker. Inconclusion, LS can be performed safely even after LDLT, and LS after LDLT is a feasible and less invasive modality for thrombocytopenia caused by antiviral therapy.Hiroyuki Kato Masanobu Usui Yoshinori Azumi Ichiro Ohsawa Masashi Kishiwada Hiroyuki Sakurai Masami Tabata Shuji Isaji 2008World Journal of Gastroenterology2008,14,26:7
15Pneumatosis cystoides intestinalis associated with massive free air mimicking perforated diffuse peritonitis显示文摘当时积气 cystoides 肠(一种总线标准) 一个稀罕疾病实体与许多胃肠、非胃肠的混乱,与巨大的内联系的一种总线标准和制动火箭腹被联系释放空气是极其不平常的,并且是困难的从穿孔腹膜炎诊断差别。我们在场一种总线标准的二个盒子把免费空气或模仿了穿孔腹膜炎的制动火箭腹空气与巨大的腹联系了。这些盒子强调模仿穿孔腹膜炎的一种总线标准的临床的重要性,它要求紧急情况外科。外科手术前的成像形式和诊断腹腔镜检查是有用的做精确诊断。Yoichi Sakurai Masahiro Hikichi Jun Isogaki Shinpei Furuta Risaburo Sunagawa Kazuki Inaba Yoshiyuki Komori Ichiro Uyama 2008World Journal of Gastroenterology2008,14,43:6
16大蒜播种机排种器及开沟器设计与控制(摘选)Jiraporn Benjaphragairat Hai Sakurai Nobutaka Ito 2011农业工程2011,1,2:5
17A novel synthesis method and up-conversion properties of hexagonal-phase NaYF_4:Er nano-crystals显示文摘A novel synthesis method for hexagonal(β)-phase NaYF4:Er nano-crystals(NCs)which showed up-conversion(UC)from infrared to visible spectral region was developed.The NaYF4:Er NCs were synthesized in oleic acid(OA)and 1-octadecene(ODE)with Y2(CO3)3· xH2O,Er2(CO3)3· xH2O,Na2CO3 and NH4F as precursors.This proposed method was simple and less toxic compared with generally used method so far.The XRD results showed that the molar ratio of OA/ODE and the temperature were key factors for phase control of NaYF4:Er NCs.The UC emission spectra were obtained with the emission wavelength at about 980 nm(4I11/2→4I15/2),800 nm(4I9/2→4I15/2),660 nm(4F9/2→4I15/2)and 540 nm(4S3/2→4I15/2)from Er3+ ions,by excitation wavelength of 1550 nm.The slope values,n,in the pump-power dependence,showed that the emission at 980 and 800 nm were generated by 2-step UC and at 660 nm and 540 nm were 3-step UC.The optical process for the UC excitation was discussed.罗显佳 Ryosuke Yuminami Takeaki Sakurai Katsuhiro Akimoto 2013Journal of Rare Earths2013,31,3:4
18Risk factors for local recurrence and appropriate surveillance interval after endoscopic resection显示文摘BACKGROUND Risk factors for local recurrence after polypectomy, endoscopic mucosal resection(EMR), and endoscopic submucosal dissection(ESD) have not been identified.Additionally, the appropriate interval for endoscopic surveillance of colorectal tumors at high-risk of local recurrence has not been established.AIM To clarify the clinicopathological characteristics of recurrent lesions after endoscopic colorectal tumor resection and determine the appropriate interval.METHODS Three hundred and sixty patients(1412 colorectal tumors) who underwent polypectomy, EMR, or ESD and received endoscopic surveillance subsequently for more than one year to detect local recurrence were enrolled in this study. The clinicopathological factors associated with local recurrence were determined via univariate and multivariate analyses.RESULTS Local recurrence was observed in 31 of 360(8.6%) patients [31 of 1412(2.2%)lesions] after colorectal tumor resection. Piecemeal resection, tumor size of more than 2 cm, and the presence of villous components were associated with colorectal tumor recurrence after endoscopic resection. Of these three factors, the piecemeal resection procedure was identified as an independent risk factor for recurrence. Colorectal tumors resected into more than five pieces were associated with a high risk of recurrence since the average period from resection torecurrence in these cases was approximately 3 mo. The period to recurrence in cases resected into more than 5 pieces was much shorter than that in those resected into less than 4 pieces(3.8 ± 1.9 mo vs 7.9 ± 5.0 mo, P < 0.05).CONCLUSION Local recurrence of endoscopically treated colorectal tumors depends upon the outcome of first endoscopic procedure. Piecemeal resection was the only significant risk factor associated with local recurrence after endoscopic resection.Yoriaki Komeda Tomohiro Watanabe Toshiharu Sakurai Masashi Kono Kazuki Okamoto Tomoyuki Nagai Mamoru Takenaka Satoru Hagiwara Shigenaga Matsui Naoshi Nishida Naoko Tsuji Hiroshi Kashida Masatoshi Kudo 2019World Journal of Gastroenterology2019,25,12:4
19Memory consolidation during sleep and adult hippocampal neurogenesis显示文摘In anticipation of the massive burden of neurodegenerative disease within super-aged societies, great efforts have been made to utilize neural stem and progenitor cells for regenerative medicine. The capacity of intrinsic neural stem and progenitor cells to regenerate damaged brain tissue remains unclear, due in part to the lack of knowledge about how these newly born neurons integrate into functional circuitry. As sizable integration of adult-born neurons naturally occurs in the dentate gyrus region of the hippocampus, clarifying the mechanisms of this process could provide insights for applying neural stem and progenitor cells in clinical settings. There is convincing evidence of functional correlations between adult-born neurons and memory consolidation and sleep; therefore, we describe some new advances that were left untouched in our recent review.Iyo Koyanagi Katherine G.Akers Pablo Vergara Sakthivel Srinivasan Takeshi Sakurai Masanori Sakaguchi 2019Neural Regeneration Research2019,14,1:4
20Ice-Shielding Models for Self-Preservation of Gas Hydrates显示文摘Tsutomu Uchlda Toshimitsu Sakurai Takeo Hondoh 2011Journal of Chemistry and Chemical Engineering2011,5,8:4
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