维普中文期刊产品整合服务
200篇 您的检索式:作者名="Kayahara"
    题名 作者 年代 出处 被引量
1Enhancement patterns of pancreatic adenocarcinoma on conventional dynamic multi-detector row CT:Correlation with angiogenesis and fibrosis显示文摘AIM:To evaluate retrospectively the correlation between enhancement patterns on dynamic computed tomography (CT) and angiogenesis and fibrosis in pancreatic adenocarcinoma.METHODS: Twenty-three patients with pancreatic adenocarcinoma underwent dynamic CT and tumor resection. In addition to the absolute and relative enhanced value that was calculated by subtracting the attenuation value on pre-contrast from those on contrast-enhanced CT in each phase, we defined one parameter, 'tumor-aorta enhancement ratio', which was calculated by dividing enhancement of pancreatic cancer by enhancement of abdominal aorta in each phase. These enhancement patterns were correlated with the level of vascular endothelial growth factor (VEGF), microvessel density (MVD), and extent of fibrosis.RESULTS: The absolute enhanced value in the arterial phase correlated with the level of VEGF and MVD (P=0.047, P=0.001). The relative enhanced value in arterial phase and tumor-aorta enhancement ratio (arterial) correlated with MVD (P=0.003, P=0.022). Tumor-aorta enhancement ratio (arterial) correlated negatively with the extent of fibrosis (P=0.004). The tumors with greater MVD and higher expression of VEGF tended to show high enhancement in the arterial dominant phase. On the other hand, the tumors with a larger amount of fibrosis showed a negative correlation with the grade of enhancement during the arterial phase.CONCLUSION: Enhancement patterns on dynamic CT correlated with angiogenesis and may be modified by the extent of fibrosis.Yuki Hattori Toshifumi Gabata Osamu Matsui Kentaro Mochizuki Hirohisa Kitagawa Masato Kayahara Tetsuo Ohta Yasuni Nakanuma 2009World Journal of Gastroenterology2009,15,25:15
2Intraductal papillary neoplasm of the bile duct accompanying biliary mixed adenoneuroendocrine carcinoma显示文摘We present the first case of an intraductal papillary neoplasm of the bile duct(IPNB) accompanying a mixed adenoneuroendocrine carcinoma(MANEC).A 74-yearold woman presented with fever of unknown cause.Laboratory data revealed jaundice and liver injury.Contrast-enhanced computed tomography revealed a 20 mm polypoid tumor in the dilated distal bile duct,which exhibited early enhancement and papillary growth.Upper gastrointestinal endoscopy revealed mucus production from the papilla of Vater,characterized by its protruding and dilated orifice.Endoscopic ultrasonography visualized the polypoid tumor in the distal bile duct,but no invasive region was suggested by diagnostic imaging.Therefore,the initial diagnosis was IPNB.After endoscopic nasobiliary drainage,a pylorus-preserving pancreaticoduodenectomy was performed.Pathological examination of the resected bile duct revealed papillary proliferation of biliary-type cells with nuclear atypia,indicating pancreaticobiliary-type IPNB.In addition,solid portions comprised of tumor cells with characteristic salt-and-pepper nuclei were evident.Immunohistochemistry revealed expression of the neuroendocrine marker synaptophysin in this solid component,diagnosing it as a neuroendocrine tumor(NET).Furthermore,the MIB-1 proliferation index of NET was higher than that of IPNB,and microinvasion of the NET component was found,indicating neuroendocrine carcinoma(NET G3).This unique case of MANEC,comprising IPNB and NET,provides insight into the pathogenesis of biliary NET.Ichiro Onishi Hirohisa Kitagawa Kenichi Harada Syogo Maruzen Seisyo Sakai Isamu Makino Hironori Hayashi Hisatoshi Nakagawara Hidehiro Tajima Hiroyuki Takamura Takashi Tani Masato Kayahara Hiroko Ikeda Tetsuo Ohta Yasuni Nakanuma 2013World Journal of Gastroenterology2013,19,20:2
3Patterns of neural and plexus invasion of human pancreatic cancer and experimental cancer显示文摘Takukazu Nagakawa Masato Kayahara Tetsuo Ohta Keiichi Ueno Ichiro Konishi Itsuo Miyazaki 1991International Journal of Pancreatology1991,,2:2
4PTD classification: proposal for a new classification of gastric cancer location based on physiological lymphatic flow显示文摘Shinichi Kinami Takashi Fujimura Eisuke Ojima Sachio Fushida Toshihiko Ojima Hiroshi Funaki Hideto Fujita Hiroyuki Takamura Itasu Ninomiya Genichi Nishimura Masato Kayahara Tetsuo Ohta Zen Yoh 2008International Journal of Clinical Oncology2008,,4:2
5Guidelines for the management of biliary tract and ampullary carcinomas: surgical treatment显示文摘Satoshi Kondo Tadahiro Takada Masaru Miyazaki Shuichi Miyakawa Kazuhiro Tsukada Masato Nagino Junji Furuse Hiroya Saito Toshio Tsuyuguchi Masakazu Yamamoto Masato Kayahara Fumio Kimura Hideyuki Yoshitomi Satoshi Nozawa Masahiro Yoshida Keita Wada Satoshi 2008Journal of Hepato - Biliary - Pancreatic Surgery2008,,1:2
6Candidate marker for stem and early progenitor cells, and Hes1, are expressed in crypt base columnar cells of mouse small intestine显示文摘Kayahara T Sawada M Takahashi M 2003FEBS Lett2003,535,13:1
7Clinico-pathological study of pancreatic carcinoma with particular ref-erence to the invasion of the extrapancreatic neural plexus显示文摘KAYAHARA M NAGAKAWA T KONISHI I 1991Int J Pancreatol1991,10,:1
8Role of nodal involvement and the periductal soft- tissue margin in middle and distal bile duct cancer显示文摘 Nagakawa T Tsukioka Y 1999Ann Surg1999,229,:1
9Recent trends of gallbladder cancer in Ja- pan: an analysis of 4,770 patients 显示文摘Kayahara M Nagakawa T 2007Cancer2007,110,3:1
10Functional components of pre-germinated brown rice and their health promotion and disease prevention and improvement 显示文摘Kayahara H 2001Weekly Agriculture Fore st2001,1791,:1
11Analysis of phenolic compounds in white rice, brown rice, and germinated brown rice 显示文摘Su Tian Kozo Nakamura Hiroshi Kayahara 2004Journal of Agricultural and Food Chemistry2004,52,:1
12Clinicopathological study of pancreatic carcinoma with particular reference to the invasion of the extrapancreatic neural plexus 显示文摘Kayahara M Nagakawa T Konishi I 1991Int J Pancreatol1991,10,2:1
13An evaluation of radical resection for pancreatic cancer based on the mode of recurrence as determined by autopsy and diag- nostic imaging显示文摘Kayahara M Nagakawa T Ueno K 1993Cancer1993,72,7:1
14Candidate marker for stem and early progenitor cells,and Hes 1,are expressed in crypt base columnar cells of mouse small intestine显示文摘Kayahara T Sawada M Takashi S 2003FEBS Lett2003,535,13:1
15The nature of neural invasion by pancreatic cancer显示文摘Kayahara M Nakagawara H Kitagawa H 2007Pancreas2007,,03:1
16A new classification of mirizzi syndrome from diagnostic and therapeutic Viewpoints显示文摘 Ohta T Kayahara M 1997Hepatogastrotnterology1997,44,13:1
17Analysis of phenolic compounds in white rice ,brown rice ,and germinated brown rice 显示文摘Tian S Nakamura K Kayahara H 2004J Agric Food Chem2004,52,:1
18Gasification of woody biomass char with CO2 The catalytic effects of K and Ca species on char gasification reactivity显示文摘MITSUOKA K HAYASHI S AMANO H KAYAHARA K SASAOAKA E UDDIN M A 2011Fuel Process Technol2011,92,1:1
19Clinicopathological study of pancreatic carcinoma with particular reference to the invasion of the extrapancreatic neural plexus显示文摘Masato Kayahara Takukazu Nagakawa Ichirou Konishi Keiichi Ueno Tetsuo Ohta Itsuo Miyazaki 1991International Journal of Pancreatology1991,,2:1
20Candidate markers for stem and early progenitor cells,Musashi-1 and Hesl,are expressed in crypt base columnar cells of mouse small intestine显示文摘Kayahara T Sawada M Takaishi S 0,,1:1
返回顶部 每页显示:
共10页 首页 上一页 第1页 下一页 末页 /10 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