维普中文期刊产品整合服务
1222篇 您的检索式:作者名="Egawa"
    题名 作者 年代 出处 被引量
1MRCP and MRI findings in 9 patients with autoimmune pancreatitis显示文摘瞄准:为了评估磁性的回声 cholangiopancreatography (MRCP ) ,与磁性的回声(先生) 一起的调查结果在自体免疫的胰腺炎(AIP ) 想象病人。方法:有 AIP 的九个病人经历了 MRI, MRCP,内视镜后退 cholangiopancreatography (ERCP ) ,计算断层摄影术,和 ultrasonography。在类固醇治疗前后拿的 MRCP 和先生图象被考察并且与另外的成像形式相比。AIP 盒子的 MRCP 调查结果与有胰的头的癌的 10 个盒子的那些相比。结果:在 MRCP 上,在 ERCP 上注意的主要的胰腺的管的缩小的部分没被设想,当主要的胰腺的管的非包含的片断被设想时。近似的主要的胰腺的管的在上游的膨胀的度比在胰腺的癌的情况下看温和。更低的胆汁管的狭窄或阻塞在 8 个病人被检测。先生图象在 T1 加权的先生图象上与减少的信号紧张显示出胰的增大, T2 加权的先生图象上的增加的信号紧张,并且,在 3 个病人,低亚硫酸钠强烈像囊的边界。在类固醇治疗以后,以前没设想主要的胰腺的管的部分被看见,与胆汁管狭窄的改进一起。胰腺的增大减少了,并且 T1 加权、 T2 加权的先生图象上的反常信号紧张成为了 isointense。结论:MRCP 不能区分从与胰腺的癌看见的主要的胰腺的管的狭窄与 AIP 看见的主要的胰腺的管的不规则的变窄。然而,与在 T1 加权、 T2 加权的先生图象上显示出反常信号紧张的胰腺的增大的先生成像一起的 MRCP 调查结果在支持 AIP 的诊断是有用的。Terumi Kamisawa Pong-Yui Chen Yuyang Tu Hitoshi Nakajima Naoto Egawa Kouji Tsuruta Atsutake Okamoto Noriko Kamata 2006World Journal of Gastroenterology2006,12,18:23
2Strategy to differentiate autoimmune pancreatitis from pancreas cancer显示文摘Autoimmune pancreatitis (AIP) is a newly described entity of pancreatitis in which the pathogenesis appears to involve autoimmune mechanisms. Based on histological and immunohistochemical examinations of various organs of AIP patients, AIP appears to be a pancreatic lesion reflecting a systemic 'IgG4-related sclerosing disease'. Clinically, AIP patients and patients with pancreatic cancer share many features, such as preponderance of elderly males, frequent initial symptom of painless jaundice, development of new-onset diabetes mellitus, and elevated levels of serum tumor markers. It is of uppermost importance not to misdiagnose AIP as pancreatic cancer. Since there is currently no diagnostic serological marker for AIP, and approach to the pancreas for histological examination is generally difficult, AIP is diagnosed using a combination of clinical, serological, morphological, and histopathological features. Findings suggesting AIP rather than pancreatic cancer include:fluctuating obstructive jaundice; elevated serum IgG4 levels; diffuse enlargement of the pancreas; delayed en- hancement of the enlarged pancreas and presence of a capsule-like rim on dynamic computed tomography; low apparent diffusion coefficient values on diffusion-weighted magnetic resonance image; irregular narrowing of the main pancreatic duct on endoscopic retrograde cholangiopancreatography; less upstream dilatation of the main pancreatic duct on magnetic resonance cholangiopancreatography, presence of other organ involvement such as bilateral salivary gland swelling, retroperitoneal fibrosis and hilar or intrahepatic sclerosing cholangitis; negative work-up for malignancy including endoscopic ultrasound-guided fine needle aspiration; and steroid responsiveness. Since AIP responds dramatically to steroid therapy, accurate diagnosis of AIP can avoid unnecessary laparotomy or pancreatic resection.Kensuke Takuma Terumi Kamisawa Rajesh Gopalakrishna Seiichi Hara Taku Tabata Yoshihiko Inaba Naoto Egawa Yoshinori Igarashi 2012World Journal of Gastroenterology2012,18,10:20
3The Sendai Framework for Disaster Risk Reduction: Renewing the Global Commitment to People’s Resilience, Health,and Well-being显示文摘The Sendai Framework for Disaster Risk Reduction 2015–2030(SFDRR) is the first global policy framework of the United Nations’ post-2015 agenda. It represents a step in the direction of global policy coherence with explicit reference to health, development, and climate change. To develop SFDRR, the United Nations Office for Disaster Risk Reduction(UNISDR) organized and facilitated several global, regional, national, and intergovernmental negotiations and technical meetings in the period preceding the World Conference on Disaster Risk Reduction(WCDRR) 2015 where SFDRR was adopted. UNISDR also worked with representatives of governments, UN agencies, and scientists to develop targets and indicators for SFDRR and proposed them to member states for negotiation and adoption as measures of progress and achievement in protecting lives and livelihoods. The multiple efforts of the health community in the policy development process, including campaigning for safe schools and hospitals, helped to put people’s mental and physicalhealth, resilience, and well-being higher up the disaster risk reduction(DRR) agenda compared with the Hyogo Framework for Action 2005–2015. This article reviews the historical and contemporary policy development process that led to the SFDRR with particular reference to the development of the health theme.Amina Aitsi-Selmi Shinichi Egawa Hiroyuki Sasaki Chadia Wannous Virginia Murray 2015International Journal of Disaster Risk Science2015,6,2:17
4Comprehensive and innovative techniques for livertransplantation in rats: A surgical guide显示文摘AIM: To investigate our learning curves of orthotopic liver transplantation (OLT) in rats and the most important factor for successful surgery. METHODS: We describe the surgical procedures for our rat OLT model, and determined the operator learning curves. The various factors that contributed to successful surgery were determined. The most important surgical factors were evaluated between successful and unsuccessful surgeries.RESULTS: Learning curve data indicated that 50 cases were required for operator training to start a study. Operative time, blood loss, warm ischemic time, anhepatic phase, unstable systemic hemodynamic state, and body temperature after surgery significantly affected surgery success by univariate analysis, while the anhepatic phase was the most critical factor for success by multivariate analysis. CONCLUSION: OLT in rats is the only liver transplantation model that provides clinically relevant and reliable results. Shortened anhepatic phase is key to success in this model.Tomohide Hori Justin H Nguyen Yasuhiro Ogura Toshiyuki Hata Shintaro Yagi Ann-Marie T Baine Norifumi Ohashi Christopher B Eckman Aimee R Herdt Hiroto Egawa Yasutsugu Takada Fumitaka Oike Seisuke Saka-moto Mureo Kasahara Kohei Ogawa Koichiro Hata Taku Iida Yukihide Yonekawa Lena Sibulesky Kagemasa Kuribayashi Takuma Kato Kanako Saito Mie Torii Naruhiko Sahara Naoko Kamo Tomoko Sahara Motohiko Yasutomi Shinji Uemoto 2010World Journal of Gastroenterology2010,16,25:14
5Usefulness of biopsying the major duodenal papilla to diagnose autoimmune pancreatitis:A prospective study using IgG4-immunostaining显示文摘瞄准:检验组织学并且免疫从自体免疫的胰腺炎(AIP ) 的主要十二指肠的乳头状的小突起拿的活体检视标本的组织化学的调查结果病人们。方法:在有 AIP 的 3 个病人并且 5 个控制病人的 resected 胰的主要十二指肠的乳头状的小突起[胰腺的癌(n = 3 ) 并且长期的含酒精的胰腺炎(n = 2 )] 免疫用 anti-CD4-T 房间, CD8-T 房间和 IgG4 抗体被染色。与怀疑的视神经乳头炎与 AIP 和 5 个控制病人从 2 个病人的主要十二指肠的乳头状的小突起拿的钳活体检视标本有希望地在组织化学地检验的十二指肠镜检查和免疫期间被拿。结果:包括许多 CD4 积极或 CD8 积极的 T 淋巴细胞和 IgG4 积极的血浆房间(>or=10/HPF ) 的中等或严重的 lymphoplasmacytic 渗入,与 AIP 在所有 3 个病人的主要十二指肠的乳头状的小突起被观察。一样的调查结果也在与 AIP 从 2 个病人的主要十二指肠的乳头状的小突起拿的活体检视标本,但是在控制被检测,仅仅有一些(<or=3/HPF ) 渗入主要十二指肠的乳头状的小突起的 IgG4 积极的血浆房间。结论:IgG4 积极的血浆房间的丰富的渗入明确地与 AIP 在病人的主要十二指肠的乳头状的小突起被检测。尽管这是初步的研究,从主要十二指肠的乳头状的小突起拿的活体检视标本的 IgG4-immunostaining 可以支持 AIP 的诊断。Terumi Kamisawa Yuyang Tu Hitoshi Nakajima Naoto Egawa Kouji Tsuruta Atsutake Okamoto 2006World Journal of Gastroenterology2006,12,13:13
6Comparative study of esomeprazole and lansoprazole in triple therapy for eradication of Helicobacter pylori in Japan显示文摘AIM:To evaluate the efficacy and safety of esomeprazole-based triple therapy compared with lansoprazole therapy as first-line eradication therapy for patients with Helicobacter pylori(H.pylori)in usual post-marketing use in Japan,where the clarithromycin(CAM)resistance rate is 30%.METHODS:For this multicenter,randomized,openlabel,non-inferiority trial,we recruited patients(≥20years of age)with H.pylori infection from 20 hospitals in Japan.We randomly allocated patients to esomeprazole therapy(esomeprazole 20 mg,CAM 400 mg,amoxicillin(AC)750 mg for the first 7 d,with all drugs given twice daily)or lansoprazole therapy(lansoprazole30 mg,CAM 400 mg,AC 750 mg for the first 7 d,with all drugs given twice daily)using a minimization method with age,sex,and institution as adjustment factors.Our primary outcome was the eradication rate by intention-to-treat(ITT)and per-protocol(PP)analyses.H.pylori eradication was confirmed by a urea breath test from 4 to 8 wk after cessation of therapy.RESULTS:ITT analysis revealed the eradication rates of 69.4%(95%CI:61.2%-76.6%)for esomeprazole therapy and 73.9%(95%CI:65.9%-80.6%)for lansoprazole therapy(P=0.4982).PP analysis showed eradication rate of 76.9%(95%CI:68.6%-83.5%)for esomeprazole therapy and 79.8%(95%CI:71.9%-86.0%)for lansoprazole therapy(P=0.6423).There were no differences in adverse effects between the two therapies.CONCLUSION:Esomeprazole showed non-inferiority and safety in a 7 day-triple therapy for eradication of H.pylori compared with lansoprazole.Tsutomu Nishida Masahiko Tsujii Hirohisa Tanimura Shusaku Tsutsui Shingo Tsuji Akira Takeda Atsuo Inoue Hiroyuki Fukui Toshiyuki Yoshio Osamu Kishida Hiroyuki Ogawa Masahide Oshita Ichizo Kobayashi Shinichiro Zushi Makoto Ichiba Naoto Uenoyama Yuichi Yasunaga Ryu Ishihara Mamoru Yura Masato Komori Satoshi Egawa Hideki Iijima Tetsuo Takehara 2014World Journal of Gastroenterology2014,20,15:13
7Diagnosis and clinical implications of pancreatobiliary reflux显示文摘Oddi 的括约肌在远侧的结束被定位胰腺并且胆汁管并且调整胆汁和胰液的流出。一条普通隧道能那么长连接胰腺并且胆汁管在十二指肠的墙外面被定位,,发生在 pancreaticobiliary maljunction (PBM ) ;在如此的情况中,括约肌行动机能上地不影响连接。因为在胰腺的管以内的水疗院压力通常比在胆汁管大,胰液经常倒流进在 PBM 的胆汁的管(pancreatobiliary 倒流) ,导致致癌物在胆道的非位的条件。Pancreatobiliary 倒流能经由次要的十二指肠的乳头状的小突起在胆汁,刺激分泌素的动态磁性的回声 cholangiopancreatography,和 pancreatography 从提高的淀粉酶水平被诊断。最近,没有 PBM, pancreatobiliary 倒流能发生在个人,变得明显。没有 PBM, Pancreatobiliary 倒流可能甚至在一些个人与胆汁的致癌作用有关。因为很少全身的研究与正常 pancreaticobiliary 连接在个人关于 pancreatobiliary 倒流的临床的关联和含意存在,包括适当管理的进一步未来的临床的研究应该被执行。Terumi Kamisawa Hajime Anjiki Naoto Egawa Masanao Kurata Goro Honda Kouji Tsuruta 2008World Journal of Gastroenterology2008,14,43:12
8Pancreatic cancer with a high serum IgG4 concentration显示文摘Differentiation between autoimmune pancreatitis and pancreatic cancer is sometimes difficult. It has been reported that serum IgG4 concentrations are significantly elevated and particularly high (>135 mg/dL) in autoimmune pancreatitis. Measurement of serum IgG4 has become a useful tool for differentiating between autoimmune pancreatitis and pancreatic cancer. However, we present a 74-year-old female with a markedly elevated serum IgG4 (433 mg/dL) who underwent pancreaticoduodenectomy for pancreatic cancer. Elevated serum IgG4 levels continued after the resection. On histology, adenocarcinoma of the pancreas accompanied with moderate lymphoplasmacytic infiltration infiltrated the lower bile duct and duodenum, but there were no findings of autoimmune pancreatitis. Although a small metastasis was detected in one parapancreatic lymph node, regional lymph nodes were swollen. Abundant IgG4-positive plasma cells infiltrated the cancerous areas of the pancreas, but only a few IgG4-positive plasma cells were detected in the noncancerous areas. Pancreatic cancer cells were not immunoreactive for IgG4. An abundant infiltration of IgG4-positive plasma cells was detected in the swollen regional lymph nodes and in the duodenal mucosa. We believe that the serum IgG4 level was elevated in this patient with pancreatic cancer as the result of an IgG4-related systemic disease that had no clinical manifestations other than lymphadenopathy.Terumi Kamisawa Pong Yui Chen Yuyang Tu Hitoshi Nakajima Naoto Egawa Kouji Tsuruta Atsutake Okamoto Tsunekazu Hishima 2006World Journal of Gastroenterology2006,12,38:10
9Sclerosing cholangitis associated with autoimmune pancreatitis differs from primary sclerosing cholangitis显示文摘AIM:To clarify the characteristic features of biliary le-sions in patients with autoimmune pancreatitis(AIP) and compare them with those of primary sclerosing cholangitis(PSC) .METHODS:The clinicopathological characteristics of 34 patients with sclerosing cholangitis(SC) associated with AIP were compared with those of 4 patients with PSC.RESULTS:SC with AIP occurred predominantly in el-derly men.Obstructive jaundice was the most frequent initial symptom in SC with AIP.Only SC patients with AIP had elevated serum IgG4 levels,and sclerosing diseases were more frequent in these patients.SC pa-tients with AIP responded well to steroid therapy.Seg-mental stenosis of the lower bile duct was observed only in SC patients with AIP,but a beaded and pruned-tree appearance was detected only in PSC patients.Dense infi ltration of IgG4-positive plasma cells was de-tected in the bile duct wall and the periportal area,as well as in the pancreas,of SC patients with AIP.CONCLUSION:SC with AIP is distinctly different from PSC.The two diseases can be discriminated based on cholangiopancreatographic findings and serum IgG4 levels.Terumi Kamisawa Kensuke Takuma Hajime Anjiki Naoto Egawa Masanao Kurata Goro Honda Kouji Tsuruta 2009World Journal of Gastroenterology2009,15,19:9
10Challenge to ABO blood type barrier in living donor liver transplantation显示文摘ABO incompatible living donor liver transplantation has the potential to expand the donor pool for patients with end stage liver diseases on the expense of challenges to overcome immunological barriers across blood type.There is a profound impact of age on incidence and severity of antibody mediated rejection(AMR).Even children older than 1 year have chances of AMR;children aged 8 years or older have risks of hepatic necrosis similar to adult liver recipients.The mechanism of AMR is based on circulatory disturbances secondary to inflammation and injury of the vascular endothelium caused by an antibody-antigen-complement reaction.The strategy to overcome ABO blood type barrier is based on both pre-transplant desensitization and adequate treatment of this phenomenon.Nowadays,rituximab is the standard means of desensitization but unfortunately an insufficient aid to treat AMR.Because of low incidence(less than 5%in the rituximab era),in practice of AMR only some case reports about the treatment of clinical AMR are available in the literature.Initial experiences revealed that the proteasome inhibitor,bortezomib might be a promising treatment based on its capacity to deplete plasma cell agents.Although ABO blood type barrier has been counteracted in 95%of patients by applying“rituximab-desensitization”,many issues,such as prediction of high-risk patients of infection and AMR and secure treatment strategies for evoked AMR,remain to be resolved.Hiroto Egawa 2020Hepatobiliary & Pancreatic Diseases International2020,19,4:8
11Autoimmune pancreatitis metachronously associated with retroperitoneal fibrosis with IgG4-positive plasma cell infiltration显示文摘腹膜后纤维变性是纤维组织的稠密的匾的形成在制动火箭腹膜描绘的不平常的混乱,并且它的病原学仍然保持未知。自体免疫的胰腺炎是纤维变性在胰与 IgG4 积极的血浆房间和淋巴细胞和 obliterative 静脉炎的丰富的渗入描绘的慢性胰炎的一种稀罕类型。我们在场在制动火箭的出现以后开发了 10 瞬间的自体免疫的胰腺炎的一个盒子腹纤维变性。resected 制动火箭腹团的组织检查所见是有 IgG4 积极的血浆房间和淋巴细胞和 obliterative 静脉炎的丰富的渗入的显著 periureteral 纤维变性。这些调查结果在这种情况中为制动火箭腹纤维变性和自体免疫的胰腺炎建议普通 pathophysiological 机制。制动火箭腹纤维变性力量的一些盒子是 IgG4 相关的致硬化的疾病的制动火箭腹损害。Terumi Kamisawa Pong Yui Chen Hitoshi Nakajima Naoto Egawa 2006World Journal of Gastroenterology2006,12,18:8
12Malignancies associated with intraductal papillary mucinous neoplasm of the pancreas显示文摘AIM: As intraductal papillary mucinous neoplasm (IPMN)has a favorable prognosis, associated malignancies have potential significance in these patients. We examined the incidence and characteristics of pre-existing, coexisting and subsequent malignancies in patients with IPMN. METHODS: Seventy-nine cases of IPMN were diagnosed by detection of mucous in the pancreatic duct during endoscopic retrograde pancreatography. Histological diagnosis was confirmed in 30 cases (adenoma (n = 19)and adenocarcinoma (n = 11). Other primary malignancies associated with IPMN, occurring in the prediagnostic or postdiagnostic period, were investigated. Postdiagnostic follow-up period was 3.3±0.5 years (range, 0.2-20 years).RESULTS: Other 40 malignancies occurred in 28 patients (35%). They were found before (n = 15), at (n = 19) and after (n = 6) the diagnosis of IPMT. Major associated malignancies were gastric cancer (n = 12), colonic cancer (n = 7), esophageal cancer (n = 4), pulmonary cancer (n = 4), and independent pancreatic cancer (n = 3).Pancreatic cancer was synchronous with IPMN in two patients and metachronous in one (3 years after diagnosis of IPMN). Thirty-one lesions were treated surgically or endoscopically. Fourteen patients died of associated cancers. Development of other malignancies was related to age (71.9±8.2 vs66.8±9.3, P<0.05), but not to gender or site of the tumor.CONCLUSION: IPMN is associated with a high incidence of other malignancies, particularly gastric and colonic cancers. Common genetic mechanisms between IPMN and other associated malignancies might be present. Clinicians should pay attention to the possibility of associated malignancies in preoperative screening and follow-up of patients with IPMN.Terumi Kamisawa Yuyang Tu Naoto Egawa Hitoshi Nakajima Kouji Tsuruta Atsutake Okamoto 2005World Journal of Gastroenterology2005,11,36:8
13Elucidation of the relationship of BNIP3 expression to gemcitabine chemosensitivity and prognosis显示文摘AIM: To evaluate the significance of BNIP3 in the pathogenesis of pancreatic cancer, we analyzed the relationship between the expression of BNIP3 and survival rate of the patients with pancreatic cancer, or chemosensitivities in pancreatic cancer cell lines, particularly for gemcitabine, the first-line anti-tumor drug for pancreatic cancer. METHODS: To compare the expression level of BNIP3 with the resistance to gemcitabine, eight pancreatic cancer cell lines were subjected to gemcitabine treatment and the quantitative real-time RT-PCR method was used to evaluate BNIP3 expression. Immunohistochemical analysis was also performed using 22 pancreatic cancer specimens to study relationship between BNIP3 expression and survival rate. RESULTS: Although no significantly positive association between BNIP3 mRNA level and gemcitabine chemosensitivity was observed, pancreatic cancer cell lines that were sensitive to gemcitabine treatment tended to show high levels of BNIP3 expression. The converse, an absence of BNIP3 expression, was not correlated with gemcitabine resistance. We further compared the BNIP3 expression profiles of resected primary pancreaticcancer specimens with the prognosis of the patients, and found a tendency of favorable prognosis and low BNIP3 expression. CONCLUSION: High levels of BNIP3 expression cannot be used as one of the predicting factors for gemcitabine chemosensitivity, and some yet to be known factors will have to fill the gap for the accurate prediction of pancreatic cancer chemosensitivity to gemcitabine. However, BNIP3 expression may have an impact on prediction of prognosis of patients with pancreatic cancer.Masaharu Ishida Makoto Sunamura Toru Furukawa Masanori Akada Hiroko Fujimura Emiko Shibuya Shinichi Egawa Michiaki Unno Akira Horii 2007World Journal of Gastroenterology2007,13,34:8
14Invasive group B streptococcal infection in a patient with post splenectomy for hypersplenism secondary to liver cirrhosis and portal hypertension显示文摘BACKGROUND:Splenectomy in patients with liver cirrhosis(LC)is expected to become more common owing to its efficacy on portal hemodynamics.In this report we describe an alarming case of group B streptococcus(GBS)infection after splenectomy in a patient with LC.METHODS:A 72-year-old woman with a history of LC was admitted to our emergency department because of respiratory failure.The patient had received left lateral segmentectomy of the liver and splenectomy three months before admission.Pulmonary examination revealed significant wheezing during inspiration and expiration,but no crackles and stridor.Chest radiography and CT showed no infiltrates.A presumptive diagnosis of bronchial asthma caused by upper respiratory infection was made.Four days after admission,GBS infection was confirmed by blood culture and penicillin G was administered.Antibiotics were given intravenously for a total of 12 days.RESULTS:The patient was discharged on the 12th day after admission.CONCLUSIONS:Although efficacy of splenectomy in patients with LC has been reported,immune status should be evaluated for a longer period.Patients who have undergone splenectomy are highly susceptible to bacteria;moreover,LC itself is an independent risk factor for mortality in patients with sepsis.Since prophylaxis against GBS has not been established,immediate action should be taken.Emergency physicians should be aware of invasive GBS infection in the context of the critical risk factors related to splenectomy and LC,particularly the expected increase of splenectomy performed in LC patients.Tomoya Okazaki Toru Hifumi Arisa Manabe Hikari Matsumura Satoshi Egawa Hideyuki Hamaya Nastuyo Shinohara Koshiro Takano Hajime Shishido Yuko Abe Kenya Kawakita Masanobu Hagiike Yasuhiro Kuroda 2016World Journal of Emergency Medicine2016,7,1:6
15Endoscopic approach for diagnosing autoimmune pancreatitis显示文摘It is of utmost importance to differentiate autoimmune pancreatitis(AIP) from pancreatic cancer(PC).Segmental AIP cases are sometimes difficult to differentiate from PC.On endoscopic retrograde cholangio pancreatography,long or skipped irregular narrowing of the main pancreatic duct(MPD),less upstream dilatation of the distal MPD,side branches derived from the narrowed portion of the MPD,absence of obstruction of the MPD,and stenosis of the intrahepatic bile duct suggest AIP rather than PC.Abundant infiltration of IgG4-positive plasma cells is frequently and rather specifically detected in the major duodenal papilla of AIP patients.IgG4-immunostaining of biopsy specimens obtained from the major duodenal papilla is useful for supporting a diagnosis of AIP with pancreatic head involvement.On endoscopic ultrasonography(EUS),hyperechoic spots in the hypoechoic mass and the duct-penetrating sign suggest AIP rather than PC.EUS and intraductal ultrasonography sometimes show wall thickening of the common bile duct even in the segment in which abnormalities are not clearly observed with cholangiography in AIP patients.EUS-guided fine needle aspiration,especially EUS-guided Tru-Cut biopsy,is useful to diagnose AIP,as well as to exclude PC.Terumi Kamisawa Hajime Anjiki Kensuku Takuma Naoto Egawa Takao Itoi Fumihide Itokawa 2010World Journal of Gastrointestinal Endoscopy2010,2,1:6
16Utility of pancreatography for diagnosing autoimmune pancreatitis显示文摘AIM: To identify pancreatographic findings that facilitate differentiating between autoimmune pancreatitis (AIP) and pancreatic cancer (PC) on endoscopic retrograde cholangiopancreatography (ERCP) and magnetic resonance cholangiopancreatography (MRCP). METHODS: ERCP findings of 48 AIP and 143 PC patients were compared. Diagnostic accuracies for AIP by ERCP and MRCP were compared in 30 AIP patients. RESULTS: The following ERCP findings suggested a diagnosis of AIP rather than PC. Obstruction of the main pancreatic duct (MPD) was more frequently detected in PC (P < 0.001). Skipped MPD lesions were detected only in AIP (P < 0.001). Side branch derivation from the narrowed MPD was more frequent in AIP (P < 0.001). The narrowed MPD was longer in AIP (P < 0.001), and a narrowed MPD longer than 3 cm was more frequent in AIP (P < 0.001). Maximal diameter of the upstream MPD was smaller in AIP (P < 0.001), and upstream dilatation of the MPD less than 5 mm was more frequent in AIP (P < 0.001). Stenosis of the lower bile duct was smooth in 87% of AIP and irregular in 65% of PC patients (P < 0.001). Stenosis of the intrahepatic or hilar bile duct was detected only in AIP (P = 0.001). On MRCP, diffuse narrowing of the MPD on ERCP was shown as a skipped non-visualized lesion in 50% and faint visualization in 19%, but segmental narrowing of the MPD was visualized faintly in only 14%. CONCLUSION: Several ERCP findings are useful for differentiating AIP from PC. Although MRCP cannot replace ERCP for the diagnostic evaluation of AIP, some MRCP findings support the diagnosis of AIP.Kensuke Takuma Terumi Kamisawa Taku Tabata Yoshihiko Inaba Naoto Egawa Yoshinori Igarashi 2011World Journal of Gastroenterology2011,17,18:6
17Granular cell tumor of the pancreas:A case report and review of literature显示文摘Granular cell tumors,also called Abrikossof's tumors,were originally described by Abrikossof A in 1926.The f irst case of a pancreatic granular cell tumor was described in 1975 and only 6 cases have been reported.We describe a case of granular cell tumor in the pancreas showing pancreatic duct obstruction.Because imaging studies showed f indings compatible with those of pancreatic carcinoma,the patient underwent distal pancreatectomy.Histological examination showed that the tumor consisted of a nested growth of large tumor cells with ample granular cytoplasm and small round nuclei.The tumor cells expressed S-100 protein and were stained with neuron-specific enolase and periodic acid-Schiff,but were negative for desmin,vimentin,and cytokeratin.The resected tumor was diagnosed as a granular cell tumor.To our knowledge,this is the seventh case of Granular cell tumor of the pancreas to be reported.Atsushi Kanno Kennichi Satoh Morihisa Hirota Shin Hamada Jun Umino Hiromichi Itoh Atsushi Masamune Shinichi Egawa Fuyuhiko Motoi Michiaki Unno Kazuyuki Ishida Tooru Shimosegawa 2010World Journal of Gastrointestinal Oncology2010,2,2:5
18Utility of co-transplanting mesenchymal stem cells in islet transplantation显示文摘Islet transplantation is characterized by the transplantation of isolated islets from donor pancreata into a diabetic recipient. Although it is a viable choice in the treatment of insulin dependent diabetes mellitus, most patients (approximately 90%) require insulin five years after transplantation. Recently, the co-transplantation of mesenchymal stem cells (MSCs) and islets in animal studies has revealed the effectiveness of MSCs co-transplantation for improving islet function. Themechanisms underlying the beneficial impact of MSCs include immunomodulation and the promotion of angiogenesis. In this review, we discuss MSCs and how they support improved graft survival and function.Naoaki Sakata Masafumi Goto Gumpei Yoshimatsu Shinichi Egawa Michiaki Unno 2011World Journal of Gastroenterology2011,17,47:5
19包含的小岛移植: 过去,现在和未来显示文摘 Islet transplantation could become an ideal treatment for severe diabetes to prevent hypoglycemia shock and irreversible diabetic complications, once some of the major and unresolved obstacles are overcome, including limited donor supplies and side effects caused by permanent immunosuppressant use. Approximately 30 years ago, some groups succeeded in improving the blood glucose of diabetic animals by transplanting encapsulated islets with semi-permeable membranes consisting of polymer. A semi-permeable membrane protects both the inner islets from mechanical stress and the recipient’s immune system (both cellular and humoral immunities), while allowing bidirectional diffusion of nutrients, oxygen, glucose, hormones and wastes, i.e., immune-isolation. This device, which enables immune-isolation, is called encapsulated islets or bio-artificial pancreas. Encapsulation with a semipermeable membrane can provide some advantages: (1) this device protects transplanted cells from the recipient’s immunity even if the xenogeneic islets (from large animals such as pig) or insulin-producing cells are derived from cells that have the potential for differentiation (some kinds of stem cells). In other words, the encapsulation technique can resolve the problem of limited donor supplies; and (2) encapsulation can reduce or prevent chronic administration of immunosuppressants and, therefore, important side effects otherwise induced by immunosuppressants. And now, many novel encapsulated islet systems have been developed and are being prepared for testing in a clinical setting.Naoaki Sakata Shoichiro Sumi Gumpei Yoshimatsu Masafumi Goto Shinichi Egawa Michiaki Unno 2012World Journal of Gastrointestinal Pathophysiology2012,3,1:4
20900~2800K多晶石墨电阻率与温度的关系显示文摘1.前言石墨,在惰性气氛下有3300K以上的耐热性,加之它在导电、耐粒子等方面也显示优异的特性,因此作为超高温炉的发热体、宇航材料、原子反应堆用材料等被广泛利用。然而,测定1800K以上的物性,在设备和技术方面是困难的。目前超高温用石墨材料的设计是采用从低温区域得到的石墨数据外推值,再参考经验积累的推断值进行的。因此,开发能够高精度测量炭,石墨材料的电气、机械、高温特性的设备,进而确立可靠性高的评价技术就显得很迫切。有关3300K温度范围内的电导率,虽然美国,苏联已有报告发表,但测试设备和测试条件没有详细说明,并且测试的试样也只局限于特定的石墨种类。Masakazu Adachi Hiroshi Shioyama Masaki Narisawa Shigeru Ikeda kuniaki Tatsumi Isao Souma Hideo Isozaki kazunori Egawa Hirofumi Kyutoku Takesi Tanamura 刘培桐 1991炭素技术1991,10,4:4
返回顶部 每页显示:
共62页 首页 上一页 第1页 下一页 末页 /62 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费