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672篇 您的检索式:作者名="Yoshitake"
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1Immunopathology of inflammatory bowel disease显示文摘Inflammatory bowel disease(IBD)results from a complex series of interactions between susceptibility genes,the environment,and the immune system.The host microbiome,as well as viruses and fungi,play important roles in the development of IBD either by causing inflammation directly or indirectly through an altered immune system.New technologies have allowed researchers to be able to quantify the various components of the microbiome,which will allow for future developments in the etiology of IBD.Various components of the mucosal immune system are implicated in the pathogenesis of IBD and include intestinal epithelial cells,innate lymphoid cells,cells of the innate(macrophages/monocytes,neutrophils,and dendritic cells)and adaptive(T-cells and B-cells)immune system,and their secreted mediators(cytokines and chemokines).Either a mucosal susceptibility or defect in sampling of gut luminal antigen,possibly through the process of autophagy,leads to activation of innate immune response that may be mediated by enhanced toll-like receptor activity.The antigen presenting cells then mediate the differentiation of na?ve T-cells into effector T helper(Th)cells,including Th1,Th2,and Th17,which alter gut homeostasis and lead to IBD.In this review,the effects of these components in the immunopathogenesis of IBD will be discussed.Kori L Wallace Li-Bo Zheng Yoshitake Kanazawa David Q Shih 2014World Journal of Gastroenterology2014,20,1:45
2Long-term outcome of percutaneous ethanol injection therapy for minimum-sized hepatocellular carcinoma显示文摘AIM: To evaluate long-term follow-up of minimum-sized hepatocellular carcinoma (HCC) treated with percutaneous ethanol injection (PEI). METHODS: PEI was applied to 42 lesions in 31 patients (23 male and eight female) with HCC < 15 mm in diameter, over the past 15 years. RESULTS: Overall survival rate was 74.1% at 3 years, 49.9% at 5 years, 27.2% at 7 years and 14.5% at 10 years. These results are superior to, or at least the same as those for hepatic resection and radiofrequency ablation. Survival was affected only by liver function, but not by sex, age, etiology of Hepatitis B virus or Hepatitis C virus, α-fetoprotein levels, arterial and portal blood flow, histological characteristics, and tumor multiplicity or size. Patients in Child-Pugh class A and B had 5-, 7- and 10-years survival rates of 76.0%, 42.2% and 15.8%, and 17.1%, 8.6% and 0%, respectively (P = 0.025). CONCLUSION: Treatment with PEI is best indicated for patients with HCC < 15 mm in Child-Pugh class A.Miyuki Taniguchi Soo Ryang Kim Susumu Imoto Hirotsugu Ikawa Kenji Ando Keiji Mita Shuichi Fuki Noriko Sasase Toshiyuki Matsuoka Masatoshi Kudo Yoshitake Hayashi 2008World Journal of Gastroenterology2008,14,13:16
3Variations and mutations in the hepatitis B virus genome and their associations with clinical characteristics显示文摘Hepatitis B virus(HBV) infection is major global issue, because chronic HBV infection is strongly associated with liver cancer. HBV spread worldwide with variousmutations and variations. This variability, called quasispecies, is derived from no proof-reading capacity of viral reverse transcriptase. So far, thousands of studies reported that the variety of genome is closely related to the geographic distribution and clinical characteristics. Recent technological advances including capillary sequencer and next generation sequencer have made in easier to analyze mutations. The variety of HBV genome is related to not only antigenicity of HBs-antigen but also resistance to antiviral therapies. Understanding of these variations is important for the development of diagnostic tools and the appropriate therapy for chronic hepatitis B. In this review, recent publications in relation to HBV mutations and variations are updated and summarized.Yoshihiko Yano Takeshi Azuma Yoshitake Hayashi 2015World Journal of Hepatology2015,7,3:8
4Diagnostic sensitivity of imaging modalities for hepatocellular carcinoma smaller than 2 cm显示文摘AIM:To compare the imaging results with histology and to evaluate the diagnostic sensitivity of imaging modalities for hepatocellular carcinoma(HCC)smaller than 2 cm.METHODS:Nodules smaller than 2 cm(n=34)revealed by ultrasonography(US)in 29 patients with liver cirrhosis were analyzed.Histological diagnosis of HCC was performed by ultrasonographic guidance:moderately-differentiated HCC(n=24);well-differentiated HCC(n=10).The patterns disclosed by the four imaging modalities defined the conclusive diagnosis of HCC:(1)contrast-enhanced computed tomography(CECT),hypervascularity in the arterial phase and washout in the equilibrium phase;(2)Sonazoid contrast-enhanced US(CEUS),hypervascularity in the early vascular phase and defect in the Kupffer phase;(3)gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid(Gd-EOBDTPA)-enhanced magnetic resonance imaging(MRI),hypervascularity in the arterial phase and/or defect in the hepatobiliary phase;and(4)CT arterioportal angiography:hypervascularity by CT during arteriography and/ or perfusion defect by CT during arterial portography.RESULTS:Overall,the sensitivity of diagnosing HCC smaller than 2 cm was 52.9%(18/34)(95%CI:35.170.2)by CECT;67.6%(23/34)(95%CI:49.5-82.6)by Sonazoid CEUS;76.5%(26/34)(95%CI:58.8-89.3) by Gd-EOB-DTPA MRI;and 88.2%(30/34)(95%CI: 72.5-96.7)by CT arterioportal angiography.The diagnostic sensitivity of detecting moderately-differentiated HCC by CECT,Sonazoid CEUS,Gd-EOB-DTPA MRI and CT arterioportal angiography was 62.5%(15/24)(95%CI: 40.6-81.2),79.2%(19/24)(95%CI:57.8-92.9),75.0% (18/24)(95%CI:53.3-90.2)and 95.8%(23/24)(95% CI:78.9-99.9),respectively.A significant difference(P< 0.05)was observed between CECT and CT arterioportal angiography in all nodules.There was no difference between Sonazoid CEUS,Gd-EOB-DTPA MRI,and CT arterioportal angiography.The combined sensitivity of Sonazoid CEUS and Gd-EOB-DTPA MRI was 94.1%(32/34).CONCLUSION:Changing the main diagnostic modality for HCC smaller than 2 cm from CT arterioportal angiography to Sonazoid CEUS and Gd-EOB-DTPA MRI is recommended.Keiji Mita Soo Ryang Kim Masatoshi Kudo Susumu Imoto Taisuke Nakajima Kenji Ando Katsumi Fukuda Toshiyuki Matsuoka Yoko Maekawa Yoshitake Hayashi 2010World Journal of Gastroenterology2010,16,33:7
5Scirrhous hepatocellular carcinoma displaying atypical findings on imaging studies显示文摘We describe a 15-mm scirrhous hepatocellular carcinoma(HCC) in a 60-year-old man with B-type cirrhosis.Ultrasound disclosed a 15-mm hypoechoic nodule in segment 7.Contrast-enhanced US revealed heterogeneous,not diffuse,hypervascularity in the early phase and a defect in the Kupffer phase.Contrast-enhanced computed tomography(CT) revealed a heterogeneous hypervascular nodule in the early phase and a low-density area in the late phase.Magnetic resonance imaging(MRI) revealed iso-to hypointensity at T1 and high intensity at T2-weighted sequences.Contrast-enhanced MRI also revealed a heterogeneous hypervascular nodule in the early phase and washout in the late phase.Super-paramagnetic iron oxide-MRI revealed a hyperintense nodule.CT during hepatic arteriography and CT during arterial portography revealed heterogeneous hyperattenuation and a perfusion defect,respectively.Based on these imaging findings the nodule was diagnosed as a mixed well-differentiated and moderately-differentiated HCC.Histologically,the nodule was moderately-differentiated HCC characterized by typical cytological and structural atypia with dense fibrosis.Immunohistochemically,the nodule was positive for heterochromatin protein 1 and alpha-smooth muscle actin,and negative for cytokeratin 19.From the above findings,the nodule was diagnosed as scirrhous HCC.Clinicians engaged in hepatology should exercise caution with suspected scirrhous HCC when imaging studies reveal atypical findings,as shown in our case on the basis of chronic liver disease.Soo Ryang Kim Susumu Imoto Taisuke Nakajima Kenji Ando Keiji Mita Katsumi Fukuda Ryo Nishikawa Yu-ichiro Koma Toshiyuki Matsuoka Masatoshi Kudo Yoshitake Hayashi 2009World Journal of Gastroenterology2009,15,18:4
6Multistep hepatocarcinogenesis from a dysplastic nodule to well-differentiated hepatocellular carcinoma in a patient with alcohol-related liver cirrhosis显示文摘We describe a rare case of the transformation of a dysplastic nodule into well-differentiated hepato- cellular carcinoma (HCC) in a 56-year-old man with alcoholrelated liver cirrhosis. Ultrasound (US) disclosed a 10 mm hypoechoic nodule and contrast enhanced US revealed a hypovascular nodule, both in segment seven. US-guided biopsy revealed a high-grade dysplastic nodule characterized by enhanced cellularity with a high N/C ratio, increased cytoplasmic eosinophilia, and slight cell atypia. One year later, the US pattern of the nodule changed from hypoechoic to hyperechoic without any change in size or hypovascularity. US-guided biopsy revealed well-differentiated HCC of the same features as shown in the first biopsy, but with additional pseudoglandular formation and moderate cell atypia. Moreover, immunohistochemical staining of cyclase- associated protein 2, a new molecular marker of well- differentiated HCC, turned positive. This is the first case of multistep hepatocarcinogenesis from a dysplastic nodule to well-differentiated HCC within one year in alcohol-related liver cirrhosis.Soo Ryang Kim Hirotsugu Ikawa Kenji Ando Keiji Mita Shuichi Fuki Michiie Sakamoto Yoshihiro Kanbara Toshiyuki Matsuoka Masatoshi Kudo Yoshitake Hayashi 2007World Journal of Gastroenterology2007,13,8:4
7Clinical importance of colonoscopy in patients with gastric neoplasm undergoing endoscopic submucosal dissection显示文摘AIM To evaluate the usefulness of total colonoscopy(TCS) for patients undergoing gastric endoscopic submucosal dissection(ESD) and to assess risk factors for colorectal neoplasms.METHODS Of the 263 patients who underwent ESD at our department between May 2010 and December 2013, 172 patients undergoing TCS during a one-year period before and after ESD were targeted. After excluding patients with a history of surgery or endoscopic therapy for colorectal neoplasms, 158 patients were analyzed. Of the 868 asymptomatic patients who underwent TCS during the same period because of positive fecal immunochemical test(FIT) results, 158 patients with no history of either surgery or endoscopic therapy for colorectal neoplasms who were matched for age and sex served as the control group for comparison.RESULTS TCS revealed adenoma less than 10 mm in 53 patients(33.6%), advanced adenoma in 17(10.8%), early colorectal cancer in 5(3.2%), and advanced colorectalcancer in 4(2.5%). When the presence or absence of adenoma less than 10 mm, advanced adenoma, and colorectal cancer and the number of adenomas were compared between patients undergoing ESD and FITpositive patients, there were no statistically significant differences in any of the parameters assessed. The patients undergoing ESD appeared to have the same risk of colorectal neoplasms as the FIT-positive patients. Colorectal neoplasms were clearly more common in men than in women(P = 0.031). Advanced adenoma and cancer were significantly more frequent in patients with at least two of the following conditions: hypertension, dyslipidemia, and diabetes mellitus(P = 0.019).CONCLUSION In patients undergoing gastric ESD, TCS appears to be important for detecting synchronous double neoplasms. Advanced adenoma and cancer were more common in patients with at least two of the following conditions: hypertension, dyslipidemia, and diabetes mellitus. Caution is therefore especially warranted in patients with these risk factors.Chieko Tsuchida Naoto Yoshitake Hitoshi Kino Yoshihito Kaneko Masakazu Nakano Kohei Tsuchida Keiichi Tominaga Takako Sasai Hironori Masuyama Hidetsugu Yamagishi Yasuo Imai Hideyuki Hiraishi 2017World Journal of Gastroenterology2017,23,23:3
8Osteopontin deficiency reduces experimental tumor cell metastasis to bone and soft tissues显示文摘Nemoto H Rittling SR Yoshitake H 2001J Bo ne Miner Res2001,16,4:2
9Intragastric surgery using laparoscopy and oral endoscopy for gastric submucosal tumors显示文摘We review the techniques and outcomes of the intragastric resection for gastric submucosal tumors(GSTs) using laparoscope and oral endoscope. In the literature, the mean operation time, intraoperative blood loss, pathological size of the tumor and postoperative hospital stay were 134 min, minimal, 31 mm and 6.4 d, respectively. There were no particular perioperative complications during the follow-up period(mean: 121.3 mo). Intragastric surgery using laparoscopy and oral endoscopy can be considerably beneficial for patients with GSTs locating in the upper third of the stomach between 2-5 cm in diameter and < 8 cm2 in crosssectional area and located in the upper third of the stomach.Nobumi Tagaya Teppei Tatsuoka Yawara Kubota Masayuki Takegami Nana Sugamata Kazuyuki Saito Takashi Okuyama Yoshitake Sugamata Masatoshi Oya 2015World Journal of Gastrointestinal Endoscopy2015,7,1:2
10Contribution of major histocom-patibility complex genes to susceptibility and resitance in helicobacter pylori related disease 显示文摘 1999Sasazuki T Eur Jgastroenterol Hepatol1999,11,8:1
11Osteopontin facilitates angiogenesis, accumulation of osteoclasts, and resorption in ectopic bone 显示文摘Asou Y Rittting SR Yoshitake H 2001Endocrinology2001,142,3:1
12Laser weldability of high strength steel sheets in fabrication of tailor welded blanks显示文摘ONO M YOSHITAKE A OHMURA M 2002NKK Technical Review2002,,86:1
13Development of laser-arc hybrid welding显示文摘Moriaki Ono Yukio Shinbo Akihide Yoshitake et d 2002NKK Technical Review2002,,86:1
14The cooling effect of paddy fields on summertime air temperature in residential Tokyo, Japan 显示文摘YOKOHARI Makoto BROWN Robert D KATO Yoshitake 2001Landscape and Urban Planning2001,,53:1
15Possible differences in the regenerative roles played by thioltransferase and thioredoxin for oxidativeely damaged proteins显示文摘YOSHITAKE S NANRI H FERNANDo M R 1994Biochem1994,116,1:1
16Microalloyed steels for automobile components 显示文摘Yoshitake Matsushima Toyofumi Hasegawa 1997Kobe Steel Engineering Reports1997,47,9:1
17Optical properties of ultrananocrystalline diamond amorphous carbon composite films prepared by pulsed laser deposition 显示文摘Akira Nagano Tsuyoshi Yoshitake Takeshi Hara 2008Diamond Related Mater2008,17,7:1
18Oxygen isotopic compositions of chonch-ules: Implications for evolution of oxygen isotopic reservoirs in the inner solar nebula显示文摘Krot A N Yurimoto H Mckeegan K D Leshin L Chaussidon M Libourel G Yoshitake M Huss G R Guan Y Zanda B 2006Chem Erde2006,66,4:1
19Age-dependent change of HMGB1 and DNA double-strand break accumulation in mouse brain 显示文摘Enokido Y Yoshitake A Ito H 2008Biochem Biophys Res Commun2008,376,1:1
20Glypican-3, overexpressed specifically in human hepatocellular carcinoma, is a novel tumor marker显示文摘Nakatsura T Yoshitake Y Senju S 2003Biochem and Biophy Res Communication2003,306,:1
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