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The efficacy of ma-huang-tang (maoto) against influenza

Health 2011年第5期3卷 300-303页

作者： Mizue Saita Toshio Naito Soushin Boku Yukiko Watanabe mai suzuki Fukuko Oka Miki Takahashi Takako Sakurai Eiichiro Sogihara Tomomi Haniu Yuki Uehara Kazunori Mitsuhashi Hiroshi Fukuda Hiroshi Isonuma Keiko Lee Hiroyuki Kobayashi Department of General Medicine Juntendo University School of Medicine

In this study, we compared Ma Huang Tang (maoto), a traditional Japanese medicine (Kampo), with antiviral drugs to evaluate their respective and combined effect on the duration of fever and other subjective symptoms of influenza. Forty-five patients enrolled in this randomized control trial had positive type A influenza on rapid influenza antigen test, provided written consent, and sought treatment at Juntendo University Hospital between November 2008 and March 2009. Using a computer-gen- erated list, patients were randomly assigned to one of the four intervention groups: 1): maoto (TJ-27), 9 subjects;2): Tamiflu (oseltamivir), 13 subjects;3): Relenza (zanamivir), 6 subjects;and 4): maoto/oseltamivir combination, 9 subjects. Six outcome measures were evaluated, including fever, myalgia, headache, arthralgia, fatigue, and cough. Statistical differences were determined by the Bonferroni-adjusted t-test for multiple comparisons. Our results showed that there were no significant differences among the four groups in the time-course profile of fever and the number of days until fever resolution since treatment was initiated. In addition, no significant intergroup differences were detected in the number of days until resolution of myalgia, headache, fatigue, and cough. However, the maoto group reported a more rapid improvement in joint pain than the oseltamivir group (P = 0.01). In conclusion, maoto showed comparable efficacy as antiviral medications in reducing fever and influenza symptoms. As serious concerns over the indiscriminate use, adverse reactions, and resistance to current antiviral drugs continue to grow, maoto may serve as an elegant option for the treatment of influenza.

关键词： Ma Huang Tang (Maoto) Influenza Joint Pain Oseltamivir and Zanamivir

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Hypoxia and fatty liver

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World Journal of Gastroenterology 2014年第41期20卷 15087-15097页

作者： Tomohiro suzuki Satoko Shinjo Takatomo Arai mai Kanai Nobuhito Goda Department of Life Science and Medical BioScience Waseda University School of Advanced Science and Engineering

The liver is a central organ that metabolizes excessive nutrients for storage in the form of glycogen and lipids and supplies energy-producing substrates to the peripheral tissues to maintain their function,even under starved *** processes require a considerable amount of oxygen,which causes a steep oxygen gradient throughout the hepatic *** consumption and/or excessive food intake can alter the hepatic metabolic balance drastically,which can precipitate fatty liver disease,a major cause of chronic liver diseases worldwide,ranging from simple steatosis,through steatohepatitis and hepatic fibrosis,to liver *** hepatic metabolism and tissue remodeling in fatty liver disease further disrupt hepatic oxygen homeostasis,resulting in severe liver *** master regulators of adaptive responses to hypoxic stress,hypoxia-inducible factors(HIFs) modulate various cellular and organ functions,including erythropoiesis,angiogenesis,metabolic demand,and cell survival,by activating their target genes during fetal development and also in many disease conditions such as cancer,heart failure,and *** the past decade,it has become clear that HIFs serve as key factors in the regulation of lipid metabolism and fatty liver *** review discusses the molecular mechanisms by which hypoxia and HIFs regulate lipid metabolism in the development and progression of fatty liver disease.

关键词： Hypoxia Fatty liver disease Hypoxia-inducible factor Lipid metabolism Obstructive sleep apnea

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Indirect photocatalytic reduction of arsenate to arsenite in aqueous solution with TiO_2 in the presence of hole scavengers

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Chinese Journal of Chemical Engineering 2018年第3期26卷 529-533页

作者： Abdus Samad Shamim Ahsan Ikki Tateishi mai Furukawa Hideyuki Katsumata Tohru suzuki Satoshi Kaneco Department of Chemistry Jagannath University Department of Earth and Atmospheric Sciences Metropolitan State University of Denver Department of Chemistry for Materials Graduate School of Engineering Mie University Mie Global Environment Center for Education & Research Mie University

The indirect photocatalytic reduction of arsenate to arsenite in aqueous solution with titanium dioxide(TiO_2)was investigated with various hole scavengers such as methanol, ethanol, 2-propanol, formaldehyde, acetone,formic acid and acetic acid. Although the direct photocatalytic reduction of arsenate to arsenite with TiO_2 was impossible, an indirect reduction of As(V) was possible in the presence of sacrificial electron donors to form strongly reductive radicals. The addition of ethanol was very effective for indirect photocatalytic reduction of As(V) in aqueous solution with TiO_2 photocatalyst. The indirect photocatalytic reduction rate of As(V) may be related with both the reaction rate constants of reaction of hydroxyl radicals with hole scavenger and the reactivities for the radicals M· which are produced by the reaction of ·OH with hole scavenger.

关键词： Indirect photocatalytic reduction Arsenate Arsenite Titanium dioxide Hole scavenger

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High-temperature corrosion of sintered RE_(2)Si_(2)O_(7)(RE=Yb and Ho)environmental barrier coating materials by volcanic ash

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1628-1638页

作者： Ayahisa Okawa Son Thanh Nguyen Tadachika Nakayama Thi-mai-Dung Do Hisayuki Suematsu Shu Yin Takuya Hasegawa Tsuneo suzuki Takashi Goto Koichi Niihara Institute of Multidisciplinary Research for Advanced Materials Tohoku UniversitySendai 980-8577Japan Department of Creative Engineering National Institute of TechnologyKushiro 084-0916Japan Extreme Energy-Density Research Institute Nagaoka University of TechnologyNagaoka 940-2188Japan Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai 980-8577Japan

Rare-earth silicates are promising environmental barrier coatings(EBCs)that can protect SiC_(f)/Si C_(m)substrates in next-genera tion gas turbine ***,RE_(2)Si_(2)O_(7)(RE=Yb and Ho)shows potential as an EBC due to its coefficient of thermal expansion(CTE)compatible with substrates and high resistance to water vapor *** target operating temperature for next-generation tur bine blades is 1400°*** is inevitable during adhesion to molten volcanic ash,and thus,understanding the corrosion behavior o the material is crucial to its *** study investigates the high-temperature corrosion behavior of sintered RE_(2)Si_(2)O_(7)(RE=Yb and Ho).Samples were prepared using a solid-state reaction and hot-press *** were then exposed to volcanic ash at 1400°C for 224,and 48 *** 48 h of exposure,volcanic ash did not react with Yb_(2)Si_(2)O_(7)but penetrated its interior,causing *** Ho_(2)Si_(2)O_(7)was partially dissolved in the molten volcanic ash,forming a reaction zone that prevented volcanic ash melts from penetrating the *** increasing heat treatment time,the reaction zone expanded,and the thickness of the acicular apatite grains increased The Ca:Si ratios in the residual volcanic ash were mostly unchanged for Yb_(2)Si_(2)O_(7)but decreased considerably over time for Ho_(2)Si_(2)O_(7).Th Ca in volcanic ash was consumed and formed apatite,indicating that RE^(3+)ions with large ionic radii(Ho>Yb)easily precipitated apatit from the volcanic ash.

关键词： environmental barrier coating volcanic ash rare-earth disilicate corrosion

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High Preoperative Anxiety Level and the Risk of Intraoperative Hypothermia

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International Journal of Clinical Medicine 2012年第6期3卷 461-468页

作者： Noriyoshi Tanaka Yuko Ohno Megumi Hori mai Utada Kenji Ito Toshiyasu suzuki Department of Anesthesiology School of Medicine Tokai University Tokyo Japan Division of Health Science Graduate School of Medicine Osaka University Osaka Japan

Aim: The relationship between preoperative anxiety level and intraoperative hypothermia (<36℃) was investigated. Background: Core temperature often decreases during surgery, with an initial rapid decrease followed by a slower decrease for about 2 hours. Preoperative anxiety may influence perioperative physiological responses. The relationship between preoperative anxiety level and perioperative decrease in core temperature has not been studied closely. Design: A prospective observational study. Methods: This study enrolled 120 adult patients who underwent elective major abdominal surgery under combined epidural and general anesthesia. Tympanic membrane temperature was used to measure core temperature preoperatively and during the operation. The relationship between anxiety level according to the State-Trait Anxiety Inventory (STAI) and core temperature was examined using descriptive and multivariate risk analysis. Results: High anxiety level was found in 61 patients (51%), of which 26 (43%) developed hypothermia during the first hour and 40 (66%) developed hypothermia during the first 2 hours of anesthesia. After adjustment for covariates, patients with a high anxiety level were found to have a 2.17-fold higher risk of hypothermia during the first hour and a 1.77-fold higher risk of hypothermia during the first 2 hours than patients with a low/moderate anxiety level. Conclusions: The risk of hypothermia in the early phase of general anesthesia can be predicted by measurement of the preoperative anxiety level using the STAI. Relevance to Clinical Practice: Patients with a high anxiety level had a significantly higher risk of intraoperative hypothermia. Preoperative preventive nursing care programs should include anxiety management and thermal care.

关键词： Anxiety Hypothermia Perioperative Nursing Risk Factors State-Trait Anxiety Inventory

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Evaluation of Reaction Mechanism for Photocatalytic Degradation of Dye with Self-Sensitized TiO<sub>2</sub>under Visible Light Irradiation

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Open Journal of Inorganic Non 2017年第1期7卷 1-7页

作者： Md. Ashraful Islam Molla Ikki Tateishi mai Furukawa Hideyuki Katsumata Tohru suzuki Satoshi Kaneco Department of Chemistry for Materials Mie University Mie Japan Mie Global Environment Center for Education and Research Mie University Mie Japan

The dye-sensitized TiO2 method is one of the most promising methods for the visible-light-induced detoxification of pollutants. The reaction mechanism for photocatalytic degradation of orange II (OII) and rhodamine B (RhB) with self-sensitized TiO2 under visible light irradiation (λ > 400 nm) has been evaluated. Radical scavenger studies were carried out to investigate the active species involved in the photodegradation of 5 mg/L of initial concentration of OII and RhB at room temperature. The trapping effects of different scavengers results proved that the oxidation of OII and RhB mainly occurred by the direct oxidization of h+ and ·O2- radicals, while the ·OH radicals played only a relatively minor role in the direct oxidization process.

关键词： TiO2 Photocatalytic Degradation Visible Light Dye-Sensitization Reaction Mechanism

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Enhanced Photocatalytic Degradation of Bisphenol A in Aqueous Solution by Ag-Doping ZnO

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Open Journal of Inorganic Non 2016年第3期6卷 13-17页

作者： Nobuyuki Hoshiyama Ahmed H. A. Dabwan Hideyuki Katsumata Tohru suzuki mai Furukawa Satoshi Kaneco Department of Chemistry for Materials Graduate School of Engineering Mie University Mie Japan Faculty of Chemical Engineering Technology Tati University College Kemaman Malaysia Mie Global Environment Center for Education & Research Mie University Mie Japan

The metal-doping into the photocatalyst was evaluated for the photocatalytic degradation of bisphenol A in aqueous solution with ZnO powder. Au/ZnO, Ag/ZnO and Cu/ZnO were tested in the present work. Ag-doping ZnO was effective for the improvement of efficiency for the photocatalytic degradation of bisphenol A in water. The optimum doping concentration of silver was found to be 3 wt%. The pseudo first-order rate constant with 3 wt% Ag/ZnO was 1.3 times better compared with bare ZnO. The photocatalytic degradation of treatment for the wastewater containing bisphenol A is simple, easy handling and low cost.

关键词： ZnO Ag-Doping Bisphenol A Wastewater Treatment Photocatalytic Degradation

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Determination of Asymmetric Dimethylarginine and Symmetric Dimethylarginine in Biological Samples of Mice Using LC/MS/MS

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American Journal of Analytical Chemistry 2011年第3期2卷 303-313页

作者： Daisuke Saigusa mai Takahashi Yoshitomi Kanemitsu Ayako Ishida Takaaki Abe Tohru Yamakuni Naoto suzuki Yoshihisa Tomioka Laboratory of Oncology Pharmacy Practice and Sciences Graduate School of Pharmaceutical Sciences Tohoku University Sendai Japan

Herein, we present a novel method of asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) determination within biological samples using protein precipitation and LC/MS/MS. Chromatographic separation of ADMA and SDMA was successfully performed using a silica column with optimized elution, or mobile phase, of 10 mM ammonium acetate buffer H2O/methanol/acetonitrile (20/30/45, v/v) at pH 4. The calibration ranges were 0.50 – 50.0 μg●mL-1, and good linearities were obtained for all compounds ( γ > 0.99). The intra- and inter-assay accuracies with recoveries and precisions at three concentration levels (i.e. 1.00, 5.00 and 25.0 μg●mL-1) were better than 86.9% and 7.36%, respectively. The analytical performance of the method was evaluated by determination of compounds in plasma, urine and tissues from male BALBc/J mice. For the first time, we were able to characterize the distribution of ADMA, SDMA and ADMA/SDMA in plasma, urine, brain, heart, kidneys, liver, lungs, pancreas and spleen. Additionally, we demonstrated that the ADMA/SDMA ratio in the brain was approximately 10-fold lower than all the other biological samples. Only 10 μL of plasma, 1 μL of urine and about 25 mg of tissues were required. These results suggest that the developed methodology was useful in ADMA and SDMA determination within biological samples.

关键词： Asymmetric Dimethylarginine Symmetric Dimethylarginine Creatinine Arginine Tissue Liquid Chromatography/Tandem Mass Spectrometry.

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Enhanced Removal of Arsenite from Ground Water by Adsorption onto Heat-Treated Rice Husk

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Open Journal of Inorganic Non 2016年第3期6卷 18-23页

作者： Abdus Samad Takumi Fukumoto Ahmed H. A. Dabwan Hideyuki Katsumata Tohru suzuki mai Furukawa Satoshi Kaneco Department of Chemistry for Materials Graduate School of Engineering Mie University Mie Japan Faculty of Chemical Engineering Technology Tati University College Kemaman Malaysia Mie Global Environment Center for Education & Research Mie University Mie Japan

The effect of heat treatment for rice husk was investigated on the removal of arsenite in ground water by the adsorption onto the rice husk surface. The heat treatment was performed at the temperature from 80oC to 300oC in the closed system under anoxic environment. The continuous adsorption column method was applied for the removal of arsenite. The removal efficiency (75%) with rice husk treated at 150oC was better compared to those (54%) obtained with untreated rice husk. Therefore, the heat treatment of rice husk at relatively low temperature was effective for the enhancement of arsenic removal from water. The treatment conditions of As removal from aqueous solution were optimized. The developed treatment technique was applied into the real ground water sample in Bangladesh. The As concentration in sample water after treatment was approximately 18 and 8 μg/L, which was below the WHO guideline value of maximum admissible level of arsenic in ground water for Bangladesh (50 μg/L). The developed technique might become a potential avenue for simple and low cost arsenic removal methods.

关键词： Removal As Arsenite Rice Husk Heat Treatment

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Palladium-catalyzed suzuki couplings using a novel diaminophosphine oxide as ligand

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Chinese Chemical Letters 2012年第5期23卷 521-524页

作者： Wen Peng mai Hui Hui Wang Jin Wei Yuan Liang Ru Yang Zhi Cheng Li Chemistry and Chemical Engineering School Henan University of TechnologyZhengzhou 450001China

A novel diaminophosphine oxide was synthesized and applied as ligand in palladium-catalyzed suzuki couplings reaction of aryl bromides and *** coupling reaction proceeded smoothly at mild conditions using 2 mol%Pd_2（... 详细信息

关键词： Palladium suzuki reaction Coupling Diaminophosphine oxide

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