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Washio H, Kashimoto K, Sakashita N, Ohira S, Tanaka J, Maeda N, Shimada M, Kawamata M, Yoneda A, Nakanishi K. Practical use of the central venous access port for contrast-enhanced CT: comparison with peripheral intravenous access regarding enhancement and safety. Clin Radiol 2024; 79:213-220. [PMID: 38218706 DOI: 10.1016/j.crad.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 12/01/2023] [Accepted: 12/09/2023] [Indexed: 01/15/2024]
Abstract
AIM To evaluate the efficacy of using the central venous (CV) port compared with peripheral intravenous access for contrast-material injection for contrast enhancement during the portal venous phase. MATERIALS AND METHODS Patients were divided into three groups: CV delay, CV routine, and peripheral access (PA) groups. Patients in the CV delay group underwent injection in the arm-down position with an additional delay, while those in the CV routine and PA groups underwent injections with the routine injection protocol for portal venous phase imaging. Contrast enhancement was evaluated by measuring the mean radiodensity (Hounsfield units) values for the aortic arch, abdominal aorta, inferior vena cava, portal vein, and spleen. The peak injection pressure was recorded and compared among the three groups. RESULTS No complications related to power injection were observed during 119 contrast-material injections performed using the CV port device. The CV delay group showed significantly lower radiodensity values than the PA group (165.7 ± 20.1 versus 181 ± 19 HU [p<0.01] for the portal vein); however, no significant differences in mean radiodensity values were observed between the CV routine and PA groups (p>0.05). The median peak injection pressure was 73.5, 67, and 47 psi in the CV delay, CV routine, and PA groups, respectively (p<0.01). CONCLUSION The CV port can be used for safe contrast-material injection while maintaining contrast enhancement on portal venous phase comparable to that achieved with peripheral intravenous access.
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Affiliation(s)
- H Washio
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan.
| | - K Kashimoto
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
| | - N Sakashita
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
| | - S Ohira
- Department of Comprehensive Radiation Oncology, The University of Tokyo, Tokyo, Japan; Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - J Tanaka
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
| | - N Maeda
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
| | - M Shimada
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
| | - M Kawamata
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
| | - A Yoneda
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
| | - K Nakanishi
- Department of Diagnosis and Interventional Radiology, Osaka International Cancer Institute, Osaka, Japan
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Sterchi R, Maeda N, Keller S, Zehnder B, Meier DM. In Situ Attenuated Total Reflection Infrared Spectroscopic Monitoring of Supercritical CO 2 Extraction for Green Process Applications. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Robert Sterchi
- Institute of Materials and Process Engineering (IMPE), School of Engineering (SoE), Zurich University of Applied Sciences (ZHAW), Winterthur CH-8400, Switzerland
| | - Nobutaka Maeda
- Institute of Materials and Process Engineering (IMPE), School of Engineering (SoE), Zurich University of Applied Sciences (ZHAW), Winterthur CH-8400, Switzerland
| | - Stefan Keller
- SITEC-Sieber Engineering AG, Aschbach 7, Maur CH-8124, Switzerland
| | - Beat Zehnder
- SITEC-Sieber Engineering AG, Aschbach 7, Maur CH-8124, Switzerland
| | - Daniel M. Meier
- Institute of Materials and Process Engineering (IMPE), School of Engineering (SoE), Zurich University of Applied Sciences (ZHAW), Winterthur CH-8400, Switzerland
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3
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Hack J, Maeda N, Meier DM. Review on CO 2 Capture Using Amine-Functionalized Materials. ACS Omega 2022; 7:39520-39530. [PMID: 36385890 PMCID: PMC9647976 DOI: 10.1021/acsomega.2c03385] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
CO2 capture from industry sectors or directly from the atmosphere is drawing much attention on a global scale because of the drastic changes in the climate and ecosystem which pose a potential threat to human health and life on Earth. In the past decades, CO2 capture technology relied on classical liquid amine scrubbing. Due to its high energy consumption and corrosive property, CO2 capture using solid materials has recently come under the spotlight. A variety of porous solid materials were reported such as zeolites and metal-organic frameworks. However, amine-functionalized porous materials outperform all others in terms of CO2 adsorption capacity and regeneration efficiency. This review provides a brief overview of CO2 capture by various amines and mechanistic aspects for newcomers entering into this field. This review also covers a state-of-the-art regeneration method, visible/UV light-triggered CO2 desorption at room temperature. In the last section, the current issues and future perspectives are summarized.
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4
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Al Balushi M, Baldwin L, Wiebe E, Cuartero J, Maeda N, Nijjar Y, Menon G, Huang F. Immerse, Interact and Iterate: Virtual Reality Prototyping of Cervical Brachytherapy Procedures. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Rivera Rocabado DS, Noguchi TG, Hayashi S, Maeda N, Yamauchi M, Ishimoto T. Adsorption States of N 2/H 2 Activated on Ru Nanoparticles Uncovered by Modulation-Excitation Infrared Spectroscopy and Density Functional Theory Calculations. ACS Nano 2021; 15:20079-20086. [PMID: 34860010 DOI: 10.1021/acsnano.1c07825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The adsorption states of N2 and H2 on MgO-supported Ru nanoparticles under conditions close to those of ammonia synthesis (AS; 1 atm, 250 °C) were uncovered by modulation-excitation infrared spectroscopy and density functional theory calculations using a nanoscale Ru particle model. The two most intense N2 adsorption peaks corresponded to the vertical chemisorption of N2 on the nanoparticle's top and bridge sites, while the remaining peaks were assigned to horizontally adsorbed N2 in view of the site heterogeneity of Ru nanoparticles. Long-term observations showed that vertically adsorbed N2 molecules gradually migrated from the top sites to the bridge sites. Compared to those adsorbed vertically, N2 molecules adsorbed horizontally exhibited a lower dipole moment, an increased N─N bond distance, and a decreased N─N bond order (i.e., were activated), which was ascribed to enhanced Ru-to-N charge transfer. H2 molecules were preferentially adsorbed horizontally on top sites and then rapidly dissociated to afford strongly surface-bound H atoms and thus block the active sites of Ru nanoparticles. Our results clarify the controversial adsorption/desorption behavior of N2 and H2 on AS catalysts and facilitate their further development.
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Affiliation(s)
- David S Rivera Rocabado
- Graduate School of Nanobioscience, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Tomohiro G Noguchi
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shio Hayashi
- International College of Arts and Sciences, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Nobutaka Maeda
- Institute of Materials and Process Engineering (IMPE), Zürcher Hochschule für Angewandte Wissenschaften (ZHAW), Technikumstrasse 9, 8401 Winterthur, Switzerland
| | - Miho Yamauchi
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Takayoshi Ishimoto
- Graduate School of Nanobioscience, Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
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6
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Yoshimaru S, Sadakiyo M, Maeda N, Yamauchi M, Kato K, Pirillo J, Hijikata Y. Support Effect of Metal-Organic Frameworks on Ethanol Production through Acetic Acid Hydrogenation. ACS Appl Mater Interfaces 2021; 13:19992-20001. [PMID: 33877813 PMCID: PMC8288914 DOI: 10.1021/acsami.1c01100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
We present a systematic study on the support effect of metal-organic frameworks (MOFs), regarding substrate adsorption. A remarkable enhancement of both catalytic activity and selectivity for the ethanol (EtOH) production reaction through acetic acid (AcOH) hydrogenation (AH) was observed on Pt nanoparticles supported on MOFs. The systematic study on catalysis using homogeneously loaded Pt catalysts, in direct contact with seven different MOF supports (MIL-125-NH2, UiO-66-NH2, HKUST-1, MIL-101, Zn-MOF-74, Mg-MOF-74, and MIL-121) (abbreviated as Pt/MOFs), found that MOFs having a high affinity for the AcOH substrate (UiO-66-NH2 and MIL-125-NH2) showed high catalytic activity for AH. This is the first demonstration indicating that the adsorption ability of MOFs directly accelerates catalytic performance using the direct contact between the metal and the MOF. In addition, Pt/MIL-125-NH2 showed a remarkably high EtOH yield (31% at 200 °C) in a fixed-bed flow reactor, which was higher by a factor of more than 8 over that observed for Pt/TiO2, which was the best Pt-based catalyst for this reaction. Infrared spectroscopy and a theoretical study suggested that the MIL-125-NH2 support plays an important role in high EtOH selectivity by suppressing the formation of the byproduct, ethyl acetate (AcOEt), due to its relatively weak adsorption behavior for EtOH rather than AcOH.
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Affiliation(s)
- Shotaro Yoshimaru
- Department
of Chemistry, Faculty of Science, Kyushu
University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masaaki Sadakiyo
- Department
of Chemistry, Faculty of Science, Kyushu
University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Department
of Applied Chemistry, Faculty of Science Division I, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Nobutaka Maeda
- International
Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Miho Yamauchi
- Department
of Chemistry, Faculty of Science, Kyushu
University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kenichi Kato
- RIKEN
SPring-8 Center,1-1-1
Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Jenny Pirillo
- Institute
for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Yuh Hijikata
- Institute
for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
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7
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Miyabe-Nishiwaki T, Kaneko A, Yamanaka A, Maeda N, Suzuki J, Tomonaga M, Matsuzawa T, Muta K, Nishimura R, Yajima I, Eleveld DJ, Absalom AR, Masui K. Propofol infusions using a human target controlled infusion (TCI) pump in chimpanzees (Pan troglodytes). Sci Rep 2021; 11:1214. [PMID: 33441704 PMCID: PMC7806914 DOI: 10.1038/s41598-020-79914-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/15/2020] [Indexed: 11/09/2022] Open
Abstract
Chimpanzees are genetically and physiologically similar to humans. Several pharmacokinetic models of propofol are available and target controlled infusion (TCI) of propofol is established in humans, but not in chimpanzees. The purpose of this study was to investigate if human pharmacokinetic models can accurately predict propofol plasma concentration (Cp) in chimpanzees and if it is feasible to perform TCI in chimpanzees. Ten chimpanzees were anaesthetized for regular veterinary examinations. Propofol was used as an induction or maintenance agent. Blood samples were collected from a catheter in a cephalic vein at 3–7 time points between 1 and 100 min following the propofol bolus and/or infusion in five chimpanzees, or TCI in six chimpanzees. Cp was measured using high-performance liquid chromatography. The Marsh, Schnider and Eleveld human pharmacokinetic models were used to predict Cp for each case and we examined the predictive performances of these models using the Varvel criteria Median PE and Median APE. Median PE and Median APE for Marsh, Schnider and Eleveld models were within or close to the acceptable range. A human TCI pump was successfully maintained propofol Cp during general anesthesia in six chimpanzees. Human propofol pharmacokinetic models and TCI pumps can be applied in chimpanzees.
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Affiliation(s)
| | - A Kaneko
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
| | - A Yamanaka
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
| | - N Maeda
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
| | - J Suzuki
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
| | - M Tomonaga
- Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan
| | | | - K Muta
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - R Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - I Yajima
- Department of Pharmacy, National Defense Medical College Hospital, Tokorozawa, Saitama, Japan
| | - D J Eleveld
- University Medical Center Groningen, Groningen, Netherlands
| | - A R Absalom
- University Medical Center Groningen, Groningen, Netherlands
| | - K Masui
- Department of Anesthesiology, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan.
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8
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Wang X, Maeda N, Meier DM, Baiker A. Potassium Titanate Nanobelts: A Unique Support for Au and AuRh Nanoparticles in the Catalytic Reduction of NO with CO. ChemCatChem 2020. [DOI: 10.1002/cctc.202001401] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xianwei Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering School of Environmental Science and Technology Dalian University of Technology Dalian 116024 P. R. China
- Department of Physical chemistry University of Geneva Geneva CH 1204 Switzerland
| | - Nobutaka Maeda
- Institute of Materials and Process Engineering (IMPE) Zurich University of Applied Sciences (ZHAW) Winterthur CH 8400 Switzerland
| | - Daniel M. Meier
- Institute of Materials and Process Engineering (IMPE) Zurich University of Applied Sciences (ZHAW) Winterthur CH 8400 Switzerland
| | - Alfons Baiker
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich, Hönggerberg, HCl Zurich CH 8093 Switzerland
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9
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Yamamoto T, Urabe Y, Maeda N. Examination of exercise load for recovering decreased muscle strength caused by static stretching. Sci Sports 2020. [DOI: 10.1016/j.scispo.2019.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Mitsuda N, N Awn JP, Eitoku M, Maeda N, Fujieda M, Suganuma N. Association between maternal active smoking during pregnancy and placental weight: The Japan environment and Children's study. Placenta 2020; 94:48-53. [PMID: 32421535 DOI: 10.1016/j.placenta.2020.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/11/2020] [Accepted: 04/01/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Maternal smoking during pregnancy is a well-known risk factor for reduced birthweight. However, research investigating the association between maternal smoking and placental weight is scarce and inconsistent. Our study was conducted to evaluate the association between maternal smoking and placental weight and placental weight/birthweight ratio (PW/BW ratio). METHODS We used data from a birth cohort study, the Japan Environment and Children's Study (JECS). Main outcome measures were placental weight, PW/BW ratio, and the risk of high PW/BW ratio. High PW/BW ratio was defined as PW/BW ratio above the 90th percentile for gestational age and sex of offspring. The association between maternal smoking and placental weight was estimated as crude and as adjusted beta coefficients by applying linear regression analyses. Logistic regression analyses were also performed to estimate the association between maternal smoking and the risk of high PW/BW ratio. RESULTS Of the 91,951 pregnant women, the mean placental weight and the mean PW/BW ratio were lowest for the group of women who had never smoked. Smokers had higher odds ratio for high PW/BW ratio compared with non-smokers. Furthermore, among smokers, the mean placental weight and mean PW/BW ratio were lowest in women who smoked less than 5 daily cigarettes, and highest in women who smoked 20 or more daily cigarettes during pregnancy. DISCUSSION Placental weight was greater and PW/BW ratio was higher among smokers compared with non-smokers. Moreover, the number of daily cigarettes was positively associated with heavy placental weight.
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Affiliation(s)
- N Mitsuda
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Kochi, Japan.
| | - J P N Awn
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Kochi, Japan
| | - M Eitoku
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Kochi, Japan
| | - N Maeda
- Department of Obstetrics and Gynecology, Kochi Medical School, Kochi University, Kochi, Japan
| | - M Fujieda
- Department of Pediatrics, Kochi Medical School, Kochi University, Kochi, Japan
| | - N Suganuma
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Kochi, Japan
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11
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Fujikawa M, Maeda N, Yamabe J, Koishi M. PERFORMANCE EVALUATION OF HYPERELASTIC MODELS FOR CARBON-BLACK–FILLED SBR VULCANIZATES. Rubber Chemistry and Technology 2020. [DOI: 10.5254/rct.19.81482] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
ABSTRACT
The performance of four recently developed hyperelastic material models (HM models) was evaluated by using stress–stretch relationships of filled styrene butadiene rubber vulcanizates with different contents of carbon black (CB) tested under uniaxial tension (UT), pure shear (PS), and equi-biaxial tensile (BT) conditions. The stress–stretch relationships for the PS and BT tests were obtained with a specially designed specimen having higher accuracy than those obtained with an ordinary specimen. The performances of the HM models were compared via the following three evaluations: (1) ability to reproduce the UT, PS, and BT tests; (2) ability to predict the PS and BT test results with material constants identified from the UT test; and (3) correlation between the identified material constants and CB contents. The evaluations based on a combination of the stress–stretch relationships with high accuracy and four recently developed HM models revealed that the HM model activates only the I1 term, which is the first invariant of the right Cauchy–Green tensor, exhibiting good reproducibility and predictability.
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Affiliation(s)
- M. Fujikawa
- Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - N. Maeda
- The Yokohama Rubber Co., Ltd., 2-1 Oiwake, Hiratsuka-shi, Kanagawa 254-8601, Japan
| | - J. Yamabe
- Department of Mechanical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka-shi, Fukuoka 814-0180, Japan
| | - M. Koishi
- The Yokohama Rubber Co., Ltd., 2-1 Oiwake, Hiratsuka-shi, Kanagawa 254-8601, Japan
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Shuhei N, Urabe Y, Tekeuchi T, Sasadai J, Maeda N. P 179 – Analysis of dynamic knee motion during lateral and posterolateral jump landing in female badminton players. Gait Posture 2018. [DOI: 10.1016/j.gaitpost.2018.07.099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
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13
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Chen M, Maeda N, Baiker A, Huang J. Hydrogenation of Acetophenone on Pd/Silica–Alumina Catalysts with Tunable Acidity: Mechanistic Insight by In Situ ATR-IR Spectroscopy. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00169] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mengmeng Chen
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Nobutaka Maeda
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCl, CH-8093 Zurich, Switzerland
| | - Alfons Baiker
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCl, CH-8093 Zurich, Switzerland
| | - Jun Huang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
- The University of Sydney Nano Institute, Sydney, New South Wales 2006, Australia
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14
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Kawaguchi T, Niba E, Rani A, Yoshida S, Sakakibara S, Maeda N, Sato O, Matsuo M. Dystrophin Dp71 is expressed in skeletal muscle. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Jimbo T, Taira T, Komatsu T, Kumazawa K, Maeda N, Haginoya N, Suzuki T, Ota M, Totoki Y, Wada C, Inaki K, Isoyama T, Uno M. DS-1205b, a novel, selective, small-molecule inhibitor of AXL, delays the onset of resistance and overcomes acquired resistance to EGFR-TKIs in a human EGFR-mutant NSCLC (T790M-negative) xenograft model. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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16
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Seneviratne CJ, Samaranayake LP, Ohshima T, Maeda N, Jin LJ. Identification of antifungal molecules from novel probiotic Lactobacillus bacteria for control of Candida infection. Hong Kong Med J 2016; 22 Suppl 7:34-36. [PMID: 29941691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Affiliation(s)
| | | | - T Ohshima
- School of Dental Medicine, Tsurumi University, Japan
| | - N Maeda
- School of Dental Medicine, Tsurumi University, Japan
| | - L J Jin
- Faculty of Dentistry, The University of Hong Kong
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17
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Affiliation(s)
- Xianwei Wang
- Key
Laboratory of Industrial Ecology and Environmental Engineering, School
of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Nobutaka Maeda
- Key
Laboratory of Industrial Ecology and Environmental Engineering, School
of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
- Gold
Catalysis Research Center, State Key Laboratory of Catalysis, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, People’s Republic of China
| | - Alfons Baiker
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zurich, Hönggerberg, HCI, CH-8093 Zurich, Switzerland
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18
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Pan Q, Maeda N, Manda Y, Kodama N, Minagi S. Validation of the optimal site in the neck region for detecting swallowing sounds. J Oral Rehabil 2016; 43:840-846. [PMID: 27627032 DOI: 10.1111/joor.12440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2016] [Indexed: 12/14/2022]
Abstract
Recently, the swallowing sound has been used to detect swallowing events non-invasively. A previous study, using an accelerometer, showed that the site over the lateral border of the trachea immediately inferior to the cricoid cartilage was the optimal site for detecting swallowing sounds. However, the optimal site for detection of the swallowing sound using a microphone remains undetermined. To validate the optimal site in the neck region for detecting swallowing sounds. Fourteen healthy subjects (mean age, 27·6 ± 2·2 years; seven male and seven female) participated in this study. Twenty condenser microphones were attached to 20 sites on the left neck surface to detect swallowing sounds. Participants were instructed to swallow five different stimuli three times as follows: Resting saliva, 1 and 5 mL of Japanese tea, and 1 and 5 mL of yoghurt. Mean relative peak intensity was used to indicate the magnitude of the swallowing sound. Sound spectrograms were used to illustrate differences in the properties of swallowing sounds. Mean relative peak intensity number was highest in sites at the inferior border of the mandible just above the sternocleidomastoid muscle (site 11) and sites over the lateral border of the trachea immediately inferior to the cricoid cartilage (site 8). Comparison of spectrograms showed a greater density distribution of higher frequency components at site 11 compared with site 8. These results indicate that the inferior border of the mandible just above the sternocleidomastoid muscle is the optimal site for the detection of swallowing sounds.
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Affiliation(s)
- Q Pan
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - N Maeda
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.
| | - Y Manda
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - N Kodama
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - S Minagi
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Muto S, Kawakubo M, Matsushita N, Maeda N, Momose Y, Matsumoto K. Haematological data for Matsumoto Eosinophilic Shinshu rats as determined by an automated haematology analyser. Lab Anim 2016; 39:122-9. [PMID: 15703134 DOI: 10.1258/0023677052886556] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The Matsumoto Eosinophilic Shinshu (MES) rat originated from an inbred mutant colony of rats with spontaneous eosinophilia. As part of an investigation of the pathogenesis of the MES rat, we examined the haematology data for 106 males and 88 females and age-associated changes using an automated haematology analyser, flow cytometric analysis and morphological examination. The data at 10 weeks of age showed the MES rats had higher counts for eosinophils and neutrophils, slightly higher counts for lymphocytes, monocytes, basophils, and large unstained cells (LUCs), and slightly lower values for the erythrocytic parameters when compared with Sprague-Dawley (SD) rats. In data for MES rats aged 8 to 20 weeks, eosinophil counts increased with age up to 20 weeks together with some increased neutrophil counts. After 11 weeks of age, counts for lymphocytes, monocytes, basophils, and LUCs in the MES rats were also slightly increased. In female MES rats, flow cytometric analysis showed increased counts for pan-T+ cells, but blasts, abnormal granulocytes and lymphocytes were not detected morphologically. The MES rat characterized by the haematological findings could be a useful animal model for studies of hypereosinophilia.
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Affiliation(s)
- S Muto
- Toxicology Research Laboratory, R&D, Kissei Pharmaceutical Co., Ltd, 2320-1 Maki, Hotaka, Minamiazumi, Nagano 399-8305, Japan.
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20
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Tsuzuki T, Chiaki I, Yatabe R, Taniguchi K, Maeda N, Takeyama R, Hasegawa A, Shibahara H. The role of seminal vesicle fluid on successful embryo implantation for IVF-ET system in mice. J Reprod Immunol 2016. [DOI: 10.1016/j.jri.2016.04.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Wang H, Qu Z, Xie H, Maeda N, Miao L, Wang Z. Insight into the mesoporous Fe Ce1−O2− catalysts for selective catalytic reduction of NO with NH3: Regulable structure and activity. J Catal 2016. [DOI: 10.1016/j.jcat.2016.02.009] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Manda Y, Maeda N, Pan Q, Sugimoto K, Hashimoto Y, Tanaka Y, Kodama N, Minagi S. New method of neck surface electromyography for the evaluation of tongue-lifting activity. J Oral Rehabil 2016; 43:417-25. [DOI: 10.1111/joor.12389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Y. Manda
- Department of Occlusal and Oral Functional Rehabilitation; Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
| | - N. Maeda
- Department of Occlusal and Oral Functional Rehabilitation; Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
| | - Q. Pan
- Department of Occlusal and Oral Functional Rehabilitation; Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
| | - K. Sugimoto
- Dental Education Reforming Unit; Center for the Development of Medical and Health Care Education; Okayama University; Okayama Japan
| | - Y. Hashimoto
- Department of Occlusal and Oral Functional Rehabilitation; Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
| | - Y. Tanaka
- Department of Occlusal and Oral Functional Rehabilitation; Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
| | - N. Kodama
- Department of Occlusal and Oral Functional Rehabilitation; Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
| | - S. Minagi
- Department of Occlusal and Oral Functional Rehabilitation; Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama University; Okayama Japan
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23
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Wölkart G, Beretta M, Wenzl MV, Stessel H, Schmidt K, Maeda N, Mayer B, Schrammel A. Tolerance to nitroglycerin through proteasomal down-regulation of aldehyde dehydrogenase-2 in a genetic mouse model of ascorbate deficiency. Br J Pharmacol 2015. [PMID: 23194305 PMCID: PMC3623057 DOI: 10.1111/bph.12081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background and Purpose L-gulonolactone oxidase-deficient (Gulo(-/-)) mice were used to study the effects of ascorbate deficiency on aortic relaxation by nitroglycerin (GTN) with focus on changes in the expression and activity of vascular aldehyde dehydrogenase-2 (ALDH2), which catalyses GTN bioactivation. Experimental Approach Ascorbate deficiency was induced in Gulo(-/-) mice by ascorbate deprivation for 4 weeks. Some of the animals were concomitantly treated with the proteasome inhibitor bortezomib and effects compared with ascorbate-supplemented Gulo(-/-), untreated or nitrate-tolerant wild-type mice. Aortic relaxation of the experimental groups to GTN, ACh and a NO donor was studied. Changes in mRNA and protein expression of vascular ALDH2 were quantified by qPCR and immunoblotting, respectively, and aortic GTN denitration rates determined. Key Results Like GTN treatment, ascorbate deprivation induced vascular tolerance to GTN that was associated with markedly decreased rates of GTN denitration. Ascorbate deficiency did not affect ALDH2 mRNA levels, but reduced ALDH2 protein expression and the total amount of ubiquitinated proteins to about 40% of wild-type controls. These effects were largely prevented by ascorbate supplementation or treating Gulo(-/-) mice with the 26S proteasome inhibitor bortezomib. Conclusions and Implications Our data indicate that ascorbate deficiency results in vascular tolerance to GTN via proteasomal degradation of ALDH2. The results support the view that impaired ALDH2-catalysed metabolism of GTN contributes significantly to the development of vascular nitrate tolerance and reveal a hitherto unrecognized protective effect of ascorbate in the vasculature.
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Affiliation(s)
- G Wölkart
- Department of Pharmacology and Toxicology, Karl-Franzens-Universität Graz, Graz, Austria
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24
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Moriyama N, Urabe Y, Maeda N, Oikawa T, Onoda S. Activity report from a new graduate program for recovery from radiation disasters. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Urabe Y, Iwata S, Moriyama N, Maeda N, Morita M. Does laterality exist during side step cutting? Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Yamamoto T, Urabe Y, Maeda N, Sasadai J, Fujii E, Moriyama N, Iwata S. Effect of dynamic neuromuscular training on muscle activity in single-leg landing. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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27
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Morita M, Urabe Y, Maeda N, Sasadai J, Fujii E, Moriyama N. Temporal changes of muscular strength of ankle plantar flexors after static and cyclic stretching. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Shijo T, Kuratani T, Shirakawa Y, Torikai K, Shimamura K, Sakamoto T, Watanabe Y, Maeda N, Tomiyama N, Sawa Y. The assessment of collateral communication after hybrid repair for Crawford extent II thoraco-abdominal aortic aneurysms. Eur J Cardiothorac Surg 2015; 48:960-7; discussion 967. [DOI: 10.1093/ejcts/ezv027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 12/22/2014] [Indexed: 11/14/2022] Open
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29
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Wang Z, Kim KD, Zhou C, Chen M, Maeda N, Liu Z, Shi J, Baiker A, Hunger M, Huang J. Influence of support acidity on the performance of size-confined Pt nanoparticles in the chemoselective hydrogenation of acetophenone. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00214a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemoselectivity of hydrogenation depends on strength of the covered BAS, whereas the free BAS enhance the rate.
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Affiliation(s)
- Zichun Wang
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Australia
| | - Kyung-Duk Kim
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Australia
| | - Cuifeng Zhou
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Australia
| | - Mengmeng Chen
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Australia
| | - Nobutaka Maeda
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Bioscience
- ETH Zürich
- HCI
- CH-8093 Zürich
| | - Zongwen Liu
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Australia
| | - Jeffrey Shi
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Australia
| | - Alfons Baiker
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Bioscience
- ETH Zürich
- HCI
- CH-8093 Zürich
| | - Michael Hunger
- Institute of Chemical Technology
- University of Stuttgart
- D-70550 Stuttgart
- Germany
| | - Jun Huang
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering
- The University of Sydney
- Australia
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30
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Fukuike C, Kodama N, Manda Y, Hashimoto Y, Sugimoto K, Hirata A, Pan Q, Maeda N, Minagi S. A novel automated detection system for swallowing sounds during eating and speech under everyday conditions. J Oral Rehabil 2014; 42:340-7. [PMID: 25545324 DOI: 10.1111/joor.12264] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2014] [Indexed: 10/24/2022]
Abstract
The wave analysis of swallowing sounds has been receiving attention because the recording process is easy and non-invasive. However, up until now, an expert has been needed to visually examine the entire recorded wave to distinguish swallowing from other sounds. The purpose of this study was to establish a methodology to automatically distinguish the sound of swallowing from sound data recorded during a meal in the presence of everyday ambient sound. Seven healthy participants (mean age: 26·7 ± 1·3 years) participated in this study. A laryngeal microphone and a condenser microphone attached to the nostril were used for simultaneous recording. Recoding took place while participants were taking a meal and talking with a conversational partner. Participants were instructed to step on a foot pedal trigger switch when they swallowed, representing self-enumeration of swallowing, and also to achieve six additional noise-making tasks during the meal in a randomised manner. The automated analysis system correctly detected 342 out of the 352 self-enumerated swallowing events (sensitivity: 97·2%) and 479 out of the 503 semblable wave periods of swallowing (specificity: 95·2%). In this study, the automated detection system for swallowing sounds using a nostril microphone was able to detect the swallowing event with high sensitivity and specificity even under the conditions of daily life, thus showing potential utility in the diagnosis or screening of dysphagic patients in future studies.
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Affiliation(s)
- C Fukuike
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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31
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Shinohara H, Urabe Y, Maeda N, Xie D, Sasadai J, Fujii E. Does shoulder impingement syndrome affect the shoulder kinematics and associated muscle activity in archers? J Sports Med Phys Fitness 2014; 54:772-779. [PMID: 25350034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Archery related injuries, such as shoulder impingement syndrome are caused by repeated motion of the shoulder. The aim of this study was to analyze differences in the shoulder kinematics and the associated muscle activity between archers with shoulder impingement and uninjured archery players. METHODS Thirty male archers, who were divided into an impingement group and an uninjured group, were included in this study. The angle of scapular elevation, shoulder joint abduction, horizontal extension, and elbow joint flexion as well as the electromyographic activity of the upper trapezius, lower trapezius, deltoid middle, deltoid posterior, biceps brachii, and triceps brachii muscles at the point of stabilization during shooting were measured. Variables differing between impingement and uninjured groups were identified, and a stepwise regression analysis was performed to identify a combination of variables that effectively impingement syndrome. RESULTS The results indicated that the angle of scapular elevation was significantly greater than that uninjured group (P<0.05). The angle of horizontal extension in the impingement group was significantly smaller than that in the uninjured group (P<0.05). The angle of elbow flexion in the impingement group was significantly smaller than that in the uninjured group (P<0.05). The levels of upper trapezius and deltoid middle muscle activity were significantly higher in the impingement group, while the level of lower trapezius muscle activity was significantly lower (P<0.05) when compared to the uninjured group. The impingement group had a greater angle of scapular elevation, smaller angle of horizontal extension, smaller angle of elbow flexion, higher the levels of upper trapezius, lower the levels of lower trapezius, higher deltoid middle muscle activity and higher UT/LT ratio (all differences were significant). A logistic model for predicting impingement syndrome showed that UT/LT ratio was significantly related impingement syndrome (P<0.05). CONCLUSION The authors concluded that archers with shoulder impingement syndrome exhibit different kinematics and muscle activity compared to uninjured archers. Therefore, in order to prevent shoulder joint impingement during archery, training is necessary what can make lower trapezius muscle activity increased to decrease the UT/LT ratio.
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Affiliation(s)
- H Shinohara
- Graduate School of Biomedical and Health Sciences Hiroshima University, Kasumi 1‑2‑3 Minami‑ku, Hiroshima, Japan -
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Mikamo S, Kodama N, Pan Q, Maeda N, Minagi S. Effect of nasal speaking valve on speech intelligibility under velopharyngeal incompetence: a questionnaire survey. J Oral Rehabil 2014; 42:136-43. [PMID: 25251499 DOI: 10.1111/joor.12237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2014] [Indexed: 11/27/2022]
Abstract
Velopharyngeal incompetence is known as a contributing factor to speech disorders. Suwaki et al. reported that nasal speaking valve (NSV) could improve dysarthria by regulating nasal emission utilising one-way valve. However, disease or condition which would be susceptible to treatment by NSV has not been clarified yet. This study aimed to evaluate the effect of NSV by questionnaire survey using ready-made NSV. Subjects were recruited through the internet bulletin, and NSV survey set was sent to the applicant. Sixty-six participants, who agreed to participate in this study, used NSV and mailed back the questionnaire which included self-evaluation and third-party evaluation of speech intelligibility. Statistical analysis revealed that the use of NSV resulted in significant speech intelligibility improvement in both self-evaluation and third-party evaluation (P < 0·01). Regarding the type of underlying disease of dysarthria, significant effect of NSV on self-evaluation of speech intelligibility could be observed in cerebrovascular disease and neurodegenerative disease (P < 0·01) and that on third-party evaluation in neurodegenerative disease (P < 0·01). Eighty-six percent of subjects showed improvement of speech intelligibility by shutting up nostrils by fingers, and the significant effect of NSV on both self-evaluation and third-party evaluation of speech intelligibility was observed (P < 0·001). From the results of this study, it was suggested that NSV would be effective in cerebrovascular disease and neurodegenerative disease, as well as in subjects whose speech intelligibility was improved by closing nostrils.
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Affiliation(s)
- S Mikamo
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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33
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Natsume J, Maeda N, Itomi K, Kidokoro H, Ishihara N, Takada H, Okumura A, Kubota T, Miura K, Aso K, Morikawa T, Kato K, Negoro T, Watanabe K. PET in infancy predicts long-term outcome during adolescence in cryptogenic West syndrome. AJNR Am J Neuroradiol 2014; 35:1580-5. [PMID: 24676006 DOI: 10.3174/ajnr.a3899] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Developmental and seizure outcomes in patients with cryptogenic West syndrome are variable. Our aim was to clarify the relationship between FDG-PET findings in infancy and long-term seizure and developmental outcome in cryptogenic West syndrome. MATERIALS AND METHODS From 1991 to 1999, we prospectively performed FDG-PET from the onset of cryptogenic West syndrome in 27 patients. PET was performed at onset and at 10 months of age. In 2012, we evaluated the educational status, psychomotor development, and seizure outcome in 23 of the 27 patients (13-22 years of age). The correlation between PET findings and outcome was evaluated. RESULTS At onset, PET showed hypometabolism in 13 patients (57%). The second PET after the initial treatment revealed cortical hypometabolism in 7 patients (30%). While hypometabolism at onset disappeared on the second PET in 9 patients, it was newly revealed in 3 patients on the second PET. In 2012, seven patients had persistent or recurrent seizures. Eight patients had intellectual impairment. The first PET did not correlate with seizure or developmental outcome. Five of 7 patients (71%) with hypometabolism seen on the second PET had persistent or recurrent seizures, while 14 of 16 (88%) patients with normal findings on the second PET were free of seizures. Five of 7 patients (71%) showing hypometabolism on the second PET had intellectual impairment. Thirteen of 16 (81%) patients with normal findings on the second PET showed normal intelligence. A significant correlation was found between the second PET and long-term seizure (P = .01) or developmental outcome (P = .03). CONCLUSIONS Cortical hypometabolism is not permanent; it changes with clinical symptoms. Hypometabolism after initial treatment predicts long-term seizures and poor developmental outcome.
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Affiliation(s)
- J Natsume
- From the Departments of Pediatrics (J.N., N.M., H.K., N.I., H.T., K.M., T.N.)
| | - N Maeda
- From the Departments of Pediatrics (J.N., N.M., H.K., N.I., H.T., K.M., T.N.)
| | - K Itomi
- Department of Neurology (K.I.), Aichi Children's Health and Medical Center, Obu, Japan
| | - H Kidokoro
- From the Departments of Pediatrics (J.N., N.M., H.K., N.I., H.T., K.M., T.N.)
| | - N Ishihara
- From the Departments of Pediatrics (J.N., N.M., H.K., N.I., H.T., K.M., T.N.)
| | - H Takada
- From the Departments of Pediatrics (J.N., N.M., H.K., N.I., H.T., K.M., T.N.)
| | - A Okumura
- Department of Pediatrics (A.O.), Juntendo University Faculty of Medicine, Tokyo, Japan
| | - T Kubota
- Department of Pediatrics (T.K.), Anjo Kosei Hospital, Anjo, Japan
| | - K Miura
- From the Departments of Pediatrics (J.N., N.M., H.K., N.I., H.T., K.M., T.N.)
| | - K Aso
- Department of Pediatrics (K.A.), Aichi Prefecture Medical Welfare Center of Aoitori, Nagoya, Japan
| | | | - K Kato
- Radiological and Medical Laboratory Sciences (K.K.), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Negoro
- From the Departments of Pediatrics (J.N., N.M., H.K., N.I., H.T., K.M., T.N.)
| | - K Watanabe
- Faculty of Health and Medical Sciences (K.W.), Aichi Shukutoku University, Nagakute, Japan
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Tanaka K, Maeda N, Osuga K, Higashi Y, Hayashi A, Hori Y, Kishimoto K, Nakamura M, Ono Y, Higashihara H, Morii E, Ohashi F, Tomiyama N. In vivo evaluation of irinotecan-loaded quadrasphere microspheres for use in chemoembolization of VX2 liver tumors. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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35
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Namur J, Pascale F, Dinca H, Ghegediban S, Saint Maurice J, Maeda N, Verret V, Manfait M, Wassef M, Laurent A. Doxorubicin eluting microsphere: is there a size effect ? Comparison of two sizes in VX2 tumor model. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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36
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Namur J, Pascale F, Dinca H, Ghegediban S, Saint Maurice J, Verret V, Maeda N, Manfait M, Wassef M, Laurent A. Safety and efficacy compared for two doxorubicin loaded microspheres in liver VX2 model. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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37
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Maeda N, Yoshimura K, Yamamoto S, Kuramasu A, Inoue M, Suzuki N, Watanabe Y, Maeda Y, Kamei R, Tsunedomi R, Shindo Y, Inui M, Tamada K, Yoshino S, Hazama S, Oka M. Expression of B7-H3, a potential factor of tumor immune evasion in combination with the number of regulatory T cells, affects against recurrence-free survival in breast cancer patients. Ann Surg Oncol 2014; 21 Suppl 4:S546-54. [PMID: 24562936 PMCID: PMC4236607 DOI: 10.1245/s10434-014-3564-2] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Indexed: 01/22/2023]
Abstract
Background In the tumor microenvironment, factors inhibiting the targeting of cancer cells by activated T cells have recently been noted. B7-H3 belongs to the B7 superfamily of immune regulatory ligands and plays an important role in the adaptive immune response of co-inhibitory/stimulatory factors in regulating T cells. However, the degree to which B7-H3 directly affects tumor immune evasion mechanisms remains unclear, particularly in patients with breast cancer. Regulatory T cells (Tregs) are known as a key player in the inhibition of immune mechanisms. The present study demonstrated that expression of B7-H3 on tumor cells and the number of Tregs in the tumor microenvironment independently affected prognosis in breast cancer patients. Methods We immunohistochemically investigated the presence of B7-H3 and forkhead box P3 (Foxp3)-positive Tregs in pathological specimens from 90 patients with breast cancer. Results Positive B7-H3 expression was associated with shorter recurrence-free survival (RFS) (p = 0.014). A higher percentage of Foxp3-positive cells also correlated with shorter RFS (p = 0.039). Multivariate analysis showed B7-H3 as an independent factor on RFS. Foxp3 expression in tumor-infiltrating lymphocytes (TILs) correlated significantly with larger tumor size (>2 cm), expression of human epidermal growth factor receptor 2 (HER2), and higher nuclear grade (p = 0.003, p < 0.001, p = 0.001, respectively). No correlation was identified between expression of B7-H3 and the percentage of Foxp3-positive TILs. Conclusions B7-H3 and Foxp3 can be regarded as markers of poor prognosis in breast cancer. These expressions were not correlated, suggesting that B7-H3 expression plays an independent role in tumor immune evasion, regardless of Tregs.
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Affiliation(s)
- N Maeda
- Department of Digestive Surgery and Surgical Oncology, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
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Maeda N, Miao J, Simmons TJ, Dordick JS, Linhardt RJ. Composite polysaccharide fibers prepared by electrospinning and coating. Carbohydr Polym 2014; 102:950-5. [PMID: 24507368 PMCID: PMC3920191 DOI: 10.1016/j.carbpol.2013.10.038] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 09/24/2013] [Accepted: 10/12/2013] [Indexed: 11/16/2022]
Abstract
Composite polysaccharide fibers composed two oppositely charged natural polysaccharides, chitosan and hyaluronic acid, were prepared by electrospinning and subsequent coating. The fiber size distribution was characterized by scanning electron microscopy. Chitosan/hyaluronic acid composite fibers were stable in water but showed controlled release of hyaluronic acid into phosphate buffered saline, and the presence of 3-wt% hyaluronic acid coating improved the swelling ratio to 30%. The resulting composite polysaccharide fibers have a number of potential biomedical applications in wound healing applications and in drug delivery systems.
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Affiliation(s)
- N Maeda
- Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - J Miao
- Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - T J Simmons
- Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Center for Future Energy Systems, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - J S Dordick
- Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - R J Linhardt
- Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
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Yoshida M, Honda E, Notsu M, Maeda N, Hosoki H. Creation of a dental X-ray unit with a contactless exposure control switch. Dentomaxillofac Radiol 2014; 43:20130406. [PMID: 24468820 DOI: 10.1259/dmfr.20130406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE A new dental radiographic unit (DXRU) with a contactless switch for adjusting exposure conditions and a foot-pedal exposure switch was developed to prevent bacterial or viral contamination from patients and was compared with a conventional DXRU with a panel push-button switch with respect to user friendliness. METHODS 45 fourth-year dental school students carried out intraoral radiography using both types of DXRU. Errors regarding dose shortages of X-rays were compared and a questionnaire completed. RESULTS 22 (49%) of the 45 students failed to provide the correct radiographic exposure and the number of errors was 32 for the conventional DXRU, and 4 (9%) students failed to provide the correct radiographic exposure and the number of errors was 4 for our new DXRU, at the first stage (p < 0.001). At the second stage, the number of students who failed to provide the correct radiographic exposure and the number of errors decreased to 12 and 16, respectively, for the conventional DXRU (p < 0.05). 37 (82%) of the 45 students preferred our DXRU because of its contactless switch and the push-pedal exposure switch. CONCLUSIONS These data suggested that our new contactless mechanism should be used for other DXRUs for contamination control.
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Affiliation(s)
- M Yoshida
- Department of Oral and Maxillofacial Radiology, University of Tokushima, Tokushima, Japan
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Morise J, Kizuka Y, Yabuno K, Tonoyama Y, Hashii N, Kawasaki N, Manya H, Miyagoe-Suzuki Y, Takeda S, Endo T, Maeda N, Takematsu H, Oka S. Structural and biochemical characterization of O-mannose-linked human natural killer-1 glycan expressed on phosphacan in developing mouse brains. Glycobiology 2013; 24:314-24. [DOI: 10.1093/glycob/cwt116] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Yamamoto S, Maeda K, Maeda N, Yoshimura K, Oka M. Abstract P1-01-12: Intraoperative detection of sentinel lymph nodes in breast cancer patients using ultrasonography-guided direct indocyanine green dye-marking by real-time virtual sonography constructed with three-dimensional computed tomography-lymphography. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-01-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: This study aims to determine the utility of ultrasonography (US)-guided direct dye-marking of sentinel lymph nodes (SLNs) by real-time virtual sonography (RVS) constructed with three-dimensional (3D) computed tomography (CT)-lymphography (LG).
Patients and Methods: We identified SLNs in 258 clinically node-negative breast cancer patients using an RVS system to display in real time a virtual multiplanar reconstruction CT image obtained from CT volume data corresponding to the same cross-sectional image from US. CT volume data were obtained using our original 3D CT-LG, which accurately detects SLNs in breast cancer. We then perform US-guided dye-marking close to SLNs using indocyanine green (ICG). Subsequently, indigo carmine blue dye was injected into the subareolar and peritumoral areas around each primary tumor. All patients underwent SLN biopsy and SLN metastases were examined pathologically.
Results: In all 258 patients, we were able to detect the same SLNs visualized on 3DCT-LG, using the RVS system. We detected ICG close to SLNs in 257 of 258 patients (99.6%) during SLN biopsy. In 25 patients (9%), we failed to follow the blue lymphatic route stained by indigo carmine and SLNs were not stained by indigo carmine, but easily detected SLNs by ICG marking.
Conclusion: US-guided direct ICG dye-marking of SLNs using this RVS system seems useful for the detection of SLNs, allowing easy detection of SLNs even when the stained lymphatic route is not followed.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-01-12.
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Affiliation(s)
- S Yamamoto
- Yamaguchi University Graduate School of Medicine, Ube City, Yamaguchi, Japan
| | - K Maeda
- Yamaguchi University Graduate School of Medicine, Ube City, Yamaguchi, Japan
| | - N Maeda
- Yamaguchi University Graduate School of Medicine, Ube City, Yamaguchi, Japan
| | - K Yoshimura
- Yamaguchi University Graduate School of Medicine, Ube City, Yamaguchi, Japan
| | - M Oka
- Yamaguchi University Graduate School of Medicine, Ube City, Yamaguchi, Japan
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Nasu M, Seino K, Tamura Y, Suzuki M, Iwabuchi Y, Maeda N, End M, Yamauchi F, Ohsawa M. Eicosapentaenoic acid restrains the development of the cardiovascular events independent of triglyceride and C-reactive protein reduction in Japanese hemodialysis patients. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Maeda N, Ono E, Wakutani Y, Yoshioka T. PP135-MON NUTRITIONAL SUPPORT FOR ELDERLY INPATIENTS WITH DEMENTIA: ANALYSIS OF 269 CONSECUTIVE CASES. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60446-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Maeda N, Meemken F, Baiker A. Insight into the Mechanism of the Preferential Oxidation of Carbon Monoxide by Using Isotope-Modulated Excitation IR Spectroscopy. ChemCatChem 2013. [DOI: 10.1002/cctc.201300172] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Maeda N, Verret V, Moine L, Bedouet L, Louguet S, Servais E, Wassef M, Tomiyama N, Osuga K, Laurent A. ■ FEATURED ABSTRACTTargeting and recanalization with rapidly resorbable microspheres versus gelatin sponge particles in a pig kidney model. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Sakaguchi K, Yokota H, Miyasho T, Maeda N, Nakamura K, Onaga T, Koiwa M, Matsuda K, Okamoto M, Hirayama K, Taniyama H. Polymeric immunoglobulin receptor expression and local immunoglobulin A production in bovine sublingual, submandibular and parotid salivary glands. Vet J 2013; 197:291-6. [PMID: 23395346 DOI: 10.1016/j.tvjl.2012.12.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 11/12/2012] [Accepted: 12/21/2012] [Indexed: 01/23/2023]
Abstract
The submandibular and parotid glands are the main sources of immunoglobulins A (IgAs) in human and rat saliva. These glands express the polymeric immunoglobulin receptor (pIgR), which transports IgAs into saliva. The main source of IgAs in saliva and pIgR expression in salivary glands has not been well documented in cattle. Expressions of pIgR were determined in the major bovine salivary glands (sublingual, submandibular, and parotid) by RT-PCR for mRNA and by Western blot analysis and immunohistochemistry (IHC) using an anti-human pIgR antibody for protein. The protein detected with the antibody was identified by nano-liquid chromatography-quadrupole time of flight mass spectrometry. Additionally, the distribution of Ig-producing plasma cells was analyzed by IHC. RT-PCR showed that pIgR was expressed in the sublingual and submandibular glands, but not in the parotid gland. Higher protein levels were observed in sublingual glands than in submandibular glands by Western blot. By IHC, pIgR was mainly located on the apical side of the cytoplasmic membrane in the sublingual gland, whereas it was observed only on the basal side in the submandibular gland. The highest density of plasma cells expressing IgAs was observed in the sublingual gland. These results suggest that the sublingual gland plays an important role in first-line defence of the oral cavity in cattle in contrast to humans and rats.
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Affiliation(s)
- K Sakaguchi
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan
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Maeda N, Meemken F, Hungerbühler K, Baiker A. Selectivity-Controlling Factors in Catalytic Methanol Amination Studied by Isotopically Modulated Excitation IR Spectroscopy. ACS Catal 2013. [DOI: 10.1021/cs3007507] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nobutaka Maeda
- Institute for Chemical
and Bioengineering,
Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCI, CH-8093 Zurich, Switzerland
| | - Fabian Meemken
- Institute for Chemical
and Bioengineering,
Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCI, CH-8093 Zurich, Switzerland
| | - Konrad Hungerbühler
- Institute for Chemical
and Bioengineering,
Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCI, CH-8093 Zurich, Switzerland
| | - Alfons Baiker
- Institute for Chemical
and Bioengineering,
Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCI, CH-8093 Zurich, Switzerland
- Chemistry Department, Faculty
of Science, King Abdulaziz University,
P.O. Box 80203, Jeddah 21589, Saudi Arabia
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Maeda N, Meemken F, Hungerbühler K, Baiker A. Spectroscopic Detection of Active Species on Catalytic Surfaces: Steady-State versus Transient Method. Chimia (Aarau) 2012; 66:664-7. [DOI: 10.2533/chimia.2012.664] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Nobutaka Maeda
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich, Wolfgang-Pauli-Strasse 10 CH-8093 Zürich, Switzerland
| | - Fabian Meemken
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich, Wolfgang-Pauli-Strasse 10 CH-8093 Zürich, Switzerland
| | - Konrad Hungerbühler
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich, Wolfgang-Pauli-Strasse 10 CH-8093 Zürich, Switzerland
| | - Alfons Baiker
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich, Wolfgang-Pauli-Strasse 10 CH-8093 Zürich, Switzerland; Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
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Chen M, Maeda N, Baiker A, Huang J. Molecular Insight into Pt-Catalyzed Chemoselective Hydrogenation of an Aromatic Ketone by In Situ Modulation–Excitation IR Spectroscopy. ACS Catal 2012. [DOI: 10.1021/cs300408x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mengmeng Chen
- Laboratory for Catalysis Engineering,
School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
| | - Nobutaka Maeda
- Institute for Chemical and Bioengineering,
Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCl, CH-8093 Zurich, Switzerland
| | - Alfons Baiker
- Institute for Chemical and Bioengineering,
Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCl, CH-8093 Zurich, Switzerland
- Chemistry Department, Faculty
of Science, King Abdulaziz University,
P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Jun Huang
- Laboratory for Catalysis Engineering,
School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
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Meemken F, Maeda N, Hungerbühler K, Baiker A. Platinum-Catalyzed Asymmetric Hydrogenation: Spectroscopic Evidence for an O-H-O Hydrogen-Bond Interaction between Substrate and Modifier. Angew Chem Int Ed Engl 2012; 51:8212-6. [DOI: 10.1002/anie.201203007] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Indexed: 11/11/2022]
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