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Hepcidin/ferroportin expression levels involve efficacy of pegylated-interferon plus ribavirin in hepatitis C virusinfected liver

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World Journal of Gastroenterology 2015年第11期21卷 3291-3299页

作者： Motoyuki Kohjima Tsuyoshi Yoshimoto Munechika Enjoji nobuyoshi fukushima Kunitaka Fukuizumi Tsukasa Nakamura Miho Kurokawa Nao Fujimori Yusuke Sasaki Yasushi Shimonaka Yusuke Murata Susumu Koyama Ken Kawabe Kazuhiro Haraguchi Yorinobu Sumida Naohiko Harada Masaki Kato Kazuhiro Kotoh Makoto Nakamuta Department of Gastroenterology and Clinical Research Center National Hospital Organization Kyushu Medical Center Health Care Center Fukuoka University Product Research Department Chugai Pharmaceutical Co.Ltd. Department of Medicine and Bioregulatory Science Kyushu University

AIM:To investigate the relationship between the ironmetabolism-related gene expression profiles and efficacy of antiviral therapy in chronic hepatitis C ***:The hepatic expression profile of ironmetabolism-related genes was analyzed and its association with virological response to pegylated-interferon plus ribavirin combination therapy was evaluated.A hundred patients with chronic hepatitis C(genotype1b,n = 50; genotype 2,n = 50) were enrolled and retrospectively *** biopsy samples were subjected to quantitative polymerase chain reaction for iron-metabolismrelated genes and protein expression(Western blotting analysis) for *** a control,normal liver tissue was obtained from 18 living donors of liver *** hepcidin level was measured by sensitive liquid chromatography/electrospray ionization tandem mass ***:Iron overload is associated with liver damage by increasing oxidative stress and hepatitis C virus(HCV)is reported to induce iron accumulation in hepatocytes in ***,iron administration suppresses HCV replication in ***,the association between HCV infection and iron metabolism remains *** with controls,patients had significantly higher gene expression for transferrin,iron-regulatoryproteins 1 and 2,divalent metal transporter 1,and ferroportin,but similar for transferrin receptors 1 and2,and *** the expression profiles were compared between sustained virological response(SVR)and non-SVR patients,the former showed significantly lower transcription and protein expression of hepcidin and *** of hepcidin-regulating genes,BMPR1,BMPR2,and hemojuvelin,was significantly increased,whereas BMP2 was decreased in HCV-infected ***2 and hemojuvelin expression was significantly lower in the SVR than non-SVR *** infection affects the expression of iron-metabolism-related genes,leading to iron accumulation in ***:Decrea

关键词： Chronic hepatitis C Iron-metabolism Hepcidin Ferro

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Control of Snow Falling Flow around NACA0015 Blade using a Plasma Electrode with Weather Resistant Design

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Journal of Thermal Science 2022年第1期31卷 72-81页

作者： MATSUDA Hisashi CHIBA Takahiro YAGAMI Masaki TAJIMA Yusuke WATANABE nobuyoshi SATO Hideaki TAKEYAMA Masafumi Hokkaido University of Science Hokkaido 006-8585Japan Asahi Rubber Inc. Saitama 330-0801Japan

The plasma actuation (PA) effect on the snow falling flow was investigated using a plasma electrode with weather resistant design and the natural snow wind facility of the Hokkaido University of Science. NACA0015 test blade with chord length c of 300 mm was used. Wind tunnel tests were carried out under the angle of the attack of the blade was fixed at 15 degrees, and the main flow velocity is U=5 m/s. PIV (Particle image velocimetry) measurements were conducted on various PA conditions using natural dry snowflakes as a tracer. When the actuator was driven under the condition of the fundamental frequency of F=50 kHz, and the pulsed modulated frequency f of fc/U=1 and Duty ratio (Ratio of plasma ON time to pulse duration time) =1%, movement of snowflakes was controlled the most effectively tested. It was clarified that the fundamental frequency of PA also affects the control of snow flow. Under snowfall conditions, the weather resistant designed plasma electrode has suffered no damage and operated successfully.

关键词： plasma actuator weather resistant design snow falling flow control experiment PIV

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