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    题名 作者 年代 出处 被引量
1T1ρ/T2 mapping and histopathology of degenerative cartilage in advanced knee osteoarthritis显示文摘AIM To investigate whether normal thickness cartilage in osteoarthritic knees demonstrate depletion of proteoglycan or collagen content compared to healthy knees.METHODS Magnetic resonance(MR) images were acquired from5 subjects scheduled for total knee arthroplasty(TKA)(mean age 70 years) and 20 young healthy control subjects without knee pain(mean age 28.9 years). MR images of T1ρ mapping, T2 mapping, and fat suppressed proton-density weighted sequences were obtained.Following TKA each condyle was divided into 4 parts(distal medial, posterior medial, distal lateral, posterior lateral) for cartilage analysis. Twenty specimens(bone and cartilage blocks) were examined. For each joint,the degree and extent of cartilage destruction was determined using the Osteoarthritis Research Society International cartilage histopathology assessment system.In magnetic resonance imaging(MRI) analysis, 2 readers performed cartilage segmentation for T1ρ/T2 values and cartilage thickness measurement.RESULTS Eleven areas in MRI including normal or near normal cartilage thickness were selected. The corresponding histopathological sections demonstrated mild to moderate osteoarthritis(OA). There was no significant difference in cartilage thickness in MRI between control and advanced OA samples [medial distal condyle, P = 0.461;medial posterior condyle(MPC), P = 0.352; lateral distal condyle, P = 0.654; lateral posterior condyle, P = 0.550],suggesting arthritic specimens were morphologically similar to normal or early staged degenerative cartilage.Cartilage T2 and T1ρ values from the MPC were significantly higher among the patients with advanced OA(P= 0.043). For remaining condylar samples there was no statistical difference in T2 and T1ρ values between cases and controls but there was a trend towards higher values in advanced OA patients. CONCLUSION Though cartilage is morphologically normal or near normal, degenerative changes exist in advanced OA patients. These changes can be detected with T2 and T1ρ MRI techniques.Benjamin S Kester Philip M Carpenter Hon J Yu Taiki Nozaki Yasuhito Kaneko Hiroshi Yoshioka Ran Schwarzkopf 2017World Journal of Orthopedics2017,8,4:12
2Imaging pitfalls of pancreatic serous cystic neoplasm and its potential mimickers显示文摘The aim of this article is to clarify diagnostic pitfalls of pancreatic serous cystic neoplasm(SCN) that may result in erroneous characterization. Usual and unusual imaging findings of SCN as well as potential SCN mimickers are presented. The diagnostic key of SCN is to look for a cluster of microcysts(honeycomb pattern), which may not be always found in the center. Fibrosis in SCN may be mistaken for a mural nodule of intraductal papillary mucinous neoplasm(IPMN). The absence of cyst wall enhancement may be helpful to distinguish SCN from mucinous cystic neoplasm. However, oligocystic SCN and branch duct type IPMN may morphologically overlap. In addition, solid serous adenoma, an extremely rare variant of SCN, is difficult to distinguish from neuroendocrine tumor.Kousei Ishigami Akihiro Nishie Yoshiki Asayama Yasuhiro Ushijima Yukihisa Takayama Nobuhiro Fujita Shunichi Takahata Takao Ohtsuka Tetsuhide Ito Hisato Igarashi Shuji Ikari Catherine M Metz Hiroshi Honda 2014World Journal of Radiology2014,6,3:6
3Relation between microRNA expression and progression and prognosis of gastric cancer: a microRNA expression analysis显示文摘Tetsuya Ueda Stefano Volinia Hiroshi Okumura Masayoshi Shimizu Cristian Taccioli Simona Rossi Hansjuerg Alder Chang-gong Liu Naohide Oue Wataru Yasui Kazuhiro Yoshida Hiroki Sasaki Sachiyo Nomura Yasuyuki Seto Michio Kaminishi George A Calin Carlo M Croce 2010Lancet Oncology2010,,2:4
4Cervical inlet patch-optical coherence tomography imaging and clinical significance显示文摘AIM:To demonstrate the feasibility of optical coherence tomography(OCT)imaging in differentiating cervical inlet patch(CIP)from normal esophagus,Barrett'sesophagus(BE),normal stomach and duodenum. METHODS:This study was conducted at the Veterans Affairs Boston Healthcare System(VABHS).Patients undergoing standard esophagogastroduodenoscopy at VABHS,including one patient with CIP,one representative patient with BE and three representative normal subjects were included.White light video endoscopy was performed and endoscopic 3D-OCT images were obtained in each patient using a prototype OCT system.The OCT imaging probe passes through the working channel of the endoscope to enable simultaneous video endoscopy and 3D-OCT examination of the human gastrointestinal(GI)tract.Standard hematoxylin and eosin(H and E)histology was performed on biopsy or endoscopic mucosal resection specimens in order to compare and validate the 3D-OCT data. RESULTS:CIP was observed from a 68-year old male with gastroesophageal reflux disease.The CIP region appeared as a pink circular lesion in the upper esophagus under white light endoscopy.OCT imaging over the CIP region showed columnar epithelium structure,which clearly contrasted the squamous epithelium structure from adjacent normal esophagus.3D-OCT images obtained from other representative patients demonstrated distinctive patterns of the normal esophagus,BE,normal stomach,and normal duodenum bulb.Microstructures,such as squamous epithelium,lamina propria, muscularis mucosa,muscularis propria,esophageal glands,Barrett's glands,gastric mucosa,gastric glands, and intestinal mucosal villi were clearly observed with OCT and matched with H and E histology.These results demonstrated the feasibility of using OCT to evaluate GI tissue morphology in situ and in real-time. CONCLUSION:We demonstrate in situ evaluation of CIP microstructures using 3D-OCT,which may be a useful tool for future diagnosis and follow-up of patients with CIP.Chao Zhou Tejas Kirtane Tsung-Han Tsai Hsiang-Chieh Lee Desmond C Adler Joseph M Schmitt Qin Huang James G Fujimoto Hiroshi Mashimo 2012World Journal of Gastroenterology2012,18,20:3
5New Gasoline Passenger Car Engine Oil Performance Category显示文摘This paper primarily focuses on the development of the International Lubricant Standardization & Approval Committee (ILSAC) GF-5 passenger car engine oil category in North America and Japan including key technical performance requirements. New ILSAC GF-5 is scheduled to be introduced during the 3rd quarter of 2010 and will supersede ILSAC GF-4 and previous categories. It will also be backward compatible and will provide improved performance relative to GF-4 in many respects. At the same time, when GF-5 is introduced, it is anticipated that API SN will also be introduced as a new performance category to supersede the current category, API SM.Hiroshi Watanabe Gary M Parsons Trevor Miller 2009润滑油2009,24,6:3
6The FHIT Gene, Spanning the Chromosome 3p14.2 Fragile Site and Renal Carcinoma–Associated t(3;8) Breakpoint, Is Abnormal in Digestive Tract Cancers显示文摘Masataka Ohta Hiroshi Inoue Maria Grazia Cotticelli Kumar Kastury Raffaele Baffa Juan Palazzo Zurab Siprashvili Masaki Mori Peter McCue Teresa Druck Carlo M Croce Kay Huebner 1996Cell1996,,4:2
7Crystal growth, dielectric and polarization reversal properties of Bi4Ti3O12 single crystal显示文摘YOICHIRO M HIROSHI M AKIRA B 1992Jpn J Appl Phys1992,31,:2
8Crk adaptor protein-induced phosphorylation of Gab1 on tyrosine 307 via Src is important for organization of focal adhesions and enhanced cell migration显示文摘在生长因素刺激之上,支架蛋白质, Gab1,是酷氨酸 phosphorylated 并且随后适配器蛋白质, Crk,从 Gab1 播送信号。我们以前证明了没有细胞外的刺激, Crk overexpression,在各种各样的人的癌症可检测,导致 Gab1 的酷氨酸 phosphorylation。在现在的学习,内在的机制进一步被调查。CrkII 的 Mutational 分析证明 SH2 领域,然而并非 SH3 (N) 或 CrkII 的规章的 Y221 残余,为 Gab1-Y307 phosphorylation 的正式就职是批评的。CrkII 的 SH2 变化也减少了和 Gab1 的相互作用。在 GST 下拉试金,而 Crk-SH3 (N) 与 Gab1 异种交往了, Crk-SH2 跳了到野类型的 Gab1,它缺乏聚类的酷氨酸区域(残余 242-410 ) 。Gab1 的酷氨酸 phosphorylation 被表明适配器的所有 Crk 家庭蛋白质,然而并非另外的包含 SH2 导致。Src 家庭 kinase 禁止者, PP2,废除 Gab1 的导致 Crk 的酷氨酸 phosphorylations。Y307 phosphorylation 在缺乏 Src,是,和 Fyn 的成纤维细胞是无法发现的,甚至在 Crk 的 overexpression 之上,而缺乏仅仅是和 Fyn 的房间仍然与 phosphorylated Y307 包含了 Gab1。而且, Crk 导致了 Src-Y416 的 phosphorylation;因此,在 Crk 和 Csk 之间的相互作用被增加。Gab1-Y307F 异种没能近甚至在 HGF 之上本地化血浆膜刺激和减少的房间移植。而且, Gab1-Y307F 扰乱了 Crk, FAK,和 paxillin 的本地化,它是焦点的粘附的典型部件。一起拿,这些结果显示 Crk 通过 Src 便于 Gab1-Y307 的酷氨酸 phosphorylation,贡献焦点的粘附和提高的房间移植的组织,可能从而支持人的癌症开发。Takuya Watanabe Masumi Tsuda Yoshinori Makino Tassos Konstantinou Hiroshi Nishihara Tokifumi Majima Akio Minami Stephan M Feller Shinya Tanaka 2009Cell Research2009,19,5:2
9Postoperative long-term evaluation of interposition reconstruction compared with Roux-en-Y after total gastrectomy in gastric cancer: prospective randomized controlled trial显示文摘Sumiya Ishigami Shoji Natsugoe Shuichi Hokita Teruaki Aoki Hideyuki Kashiwagi Kosei Hirakawa Tetsuji Sawada Yoshitaka Yamamura Seiji Itoh Koichi Hirata Keiichiro Ohta Kenichi Mafune Yasushi Nakane Tatsuo Kanda Hiroshi Furukawa Iwao Sasaki Tetsuro Kubota M 2011The American Journal of Surgery2011,,3:2
10Relation between microRNA expression and progression and prognosis of gastric cancer: a microRNA expression analysis显示文摘Tetsuya Ueda Stefano Volinia Hiroshi Okumura Masayoshi Shimizu Cristian Taccioli Simona Rossi Hansjuerg Alder Chang-gong Liu Naohide Oue Wataru Yasui Kazuhiro Yoshida Hiroki Sasaki Sachiyo Nomura Yasuyuki Seto Michio Kaminishi George A Calin Carlo M Croce 2010Lancet Oncology2010,,2:2
11Creep deformation behavior and dislocation substructures of Mg-Y binary alloys显示文摘MAYUMI S HIROYUKI S KOUICH M HIROSHI O 2001Materials Science and Engineering A2001,,:1
12Skinfriction reduction by large bubbles in a horizontalchannel flow显示文摘YUICHI M HIROSHI F YOSHIHIKO O 2007International Journal of MultiphaseFlow2007,33,:1
13Development and validation of a microplate-basedβ-carotene bleaching assay and comparison of antioxidant activity(AOA)in several crops measured byβ-carotene bleaching,DPPH and ORAC assays显示文摘Ichiho M Minako Y Hiroshi S 2009Food Science and Technology Research2009,15,2:1
14Full-length cDNAs fromchicken bursal lymphocytes to facilitate gene function analysis显示文摘Randolph B Andrzej M Hiroshi 2007Genome Biol2007,6,1:1
15Chromatographic analysis of tetracycline antibiotics in foods显示文摘Hisao O Yuko I Hiroshi M 2000Journal of Chromatography A2000,882,:1
16Effect of some plant growth regulator treatments on apple fruit ripening显示文摘ANDREA M MAURIZO V HIROSHI G 1998Plant Growth Regulation1998,25,2:1
17Inflammatory pseudotumor of the liver in a patient with early gastric cancer: CT-histopathological correlation 显示文摘Rieko N Hiroshi M Norihiro T 2005Jpn J Clin Oneol2005,35,4:1
18Expression of genes encoding type Ⅳ collagen-degrading metalloproteinases and tissue inhibitors of metalloproteinases in various human tumor cells显示文摘Hiroshi S Yuri K Masayoshi M 1992Oncogene1992,7,:1
19Non-lnvasive Measurement of Glucose by Metabolic Heat Conformation Method 显示文摘Cho O K Kin Y Hiroshi M 2004Clinical Chemistry2004,50,10:1
20Behavior of Balls in a Standard Ball Reducer显示文摘Hiroyuki O Yusuke M Hiroshi N 2002Proceedings of the Japan Society of Mechanical Engineers2002,674,68:1
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