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Fujino T, Takakura S, Chinone Y, Hasegawa M, Hazumi M, Katayama N, Lee AT, Matsumura T, Minami Y, Nishino H. Characterization of a half-wave plate for cosmic microwave background circular polarization measurement with POLARBEAR. Rev Sci Instrum 2023; 94:064502. [PMID: 37862532 DOI: 10.1063/5.0140088] [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] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 06/03/2023] [Indexed: 10/22/2023]
Abstract
A half-wave plate (HWP) is often used as a modulator to suppress systematic error in the measurements of cosmic microwave background (CMB) polarization. A HWP can also be used to measure circular polarization (CP) through its optical leakage from CP to linear polarization. The CP of the CMB is predicted from various sources, such as interactions in the Universe and extension of the standard model. Interaction with supernova remnants of population III stars is one of the brightest CP sources. Thus, the observation of the CP of CMB is a new tool for searching for population III stars. In this paper, we demonstrate the improved measurement of the leakage coefficient using the transmission measurement of an actual HWP in the laboratory. We measured the transmittance of linearly polarized light through the HWP used in Polarbear in the frequency range of 120-160 GHz. We evaluate the properties of the HWP by fitting the data with a physical model using the Markov Chain Monte Carlo method. We then estimate the band-averaged CP leakage coefficient using the physical model. We find that the leakage coefficient strongly depends on the spectra of CP sources. We thus calculate the maximum fractional leakage coefficient from CP to linear polarization as 0.133 ± 0.009 in the Rayleigh-Jeans spectrum. The nonzero value shows that Polarbear has a sensitivity to CP. Additionally, because we use the bandpass of detectors installed in the telescope to calculate the band-averaged values, we also consider systematic effects in the experiment.
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Affiliation(s)
- T Fujino
- Graduate School of Engineering Science, Yokohama National University, Yokohama 240-8501, Japan
| | - S Takakura
- Department of Astrophysical and Planetary Sciences, University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - Y Chinone
- International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - M Hasegawa
- International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- The Graduate University for Advanced Studies (SOKENDAI), Miura District, Kanagawa, Hayama 240-0115, Japan
| | - M Hazumi
- International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- The Graduate University for Advanced Studies (SOKENDAI), Miura District, Kanagawa, Hayama 240-0115, Japan
- Japan Aerospace Exploration Agency (JAXA), Institute of Space and Astronautical Science (ISAS), Sagamihara, Kanagawa 252-5210, Japan
| | - N Katayama
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - A T Lee
- International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Department of Physics, University of California, Berkeley, California 94720, USA
- Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Matsumura
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - Y Minami
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Nishino
- Research Center for the Early Universe, School of Science, The University of Tokyo, Tokyo 113-0033, Japan
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Xu J, Fujino T. Quantitative analysis of bisphenol A eluted into canned tomato and mackerel by matrix-assisted laser desorption ionization mass spectrometry using anthracene as matrix. ANAL SCI 2023:10.1007/s44211-023-00343-3. [PMID: 37087715 DOI: 10.1007/s44211-023-00343-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 04/07/2023] [Indexed: 04/24/2023]
Abstract
Quantitative analysis of bisphenol A (BPA) was performed by matrix-assisted laser desorption ionization mass spectrometry. It was found that BPA was ionized as deprotonated species when anthracene was used as the matrix. A peak of deprotonated BPA and a peak assignable to epoxy resin were observed on analysis of liquids in canned tomato and mackerel samples. In addition, many identical peaks were observed from the liquids in both cans, indicating that epoxy resin was degraded and BPA was eluted into the canned tomato and mackerel during the storage period. It was suggested that the mackerel heat-treatment process and the acidity of tomato were responsible for the elution of BPA. Using bisphenol B (BPB) as the internal standard, the concentrations of BPA were determined to be 0.55 ± 0.05 and 1.72 ± 0.13 ng/µL (µg/mL) for the canned tomato and mackerel samples, respectively. These canned products were imported goods, and their BPA levels exceeded the safe concentration recommended by The Can Manufacturers Institute of Japan. The results indicate that consumers should exercise caution when consuming canned products particularly those manufactured overseas, which have different safety standards.
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Affiliation(s)
- Jiawei Xu
- Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe, 350-8585, Japan.
| | - Tatsuya Fujino
- Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe, 350-8585, Japan
- Department of Applied Chemistry, Graduate School of Science and Engineering, Toyo University, 2100 Kujirai, Kawagoe, 350-8585, Japan
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Fujino T, Suda K, Koga T, Hamada A, Ohara S, Chiba M, Shimoji M, Takemoto T, Soh J, Mitsudomi T. EP08.02-146 Proposal of Foretinib as Second-Line TKI after Capmatinib/Tepotinib Treatment Failure in NSCLC with MET Exon 14 Mutation. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.829] [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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4
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Suda K, Fujino T, Hamada A, Ohara S, Soh J, Mitsudomi T. EP08.02-085 In vitro Activity and Potential Resistance Mutations Against BI-4020, a 4th-generation EGFR-TKI. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.768] [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]
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5
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Li Z, Yu D, Cruz J, Siddiqi U, Patel A, Rasheed N, Hoang R, Hu K, Rodgers D, Belkin M, Grinstein J, Jeevanandam V, Fujino T. Omega-3 Therapy is Not Associated with Reduced Gastrointestinal Bleeding in HeartMate 3 Left Ventricular Assist Device Patients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.137] [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] Open
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6
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Chang W, Zhang L, Qin J, Zhang P, Fu C, Fujino T. Chestnut-Shell-Derived Magnetic Porous Carbon for Removing Malachite Green Dye from Water. J Chem Eng Japan / JCEJ 2022. [DOI: 10.1252/jcej.21we024] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Chang
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University
| | - Li Zhang
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University
| | - Jie Qin
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University
| | - Pengfei Zhang
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University
| | - Chengyu Fu
- Xi’an Key Laboratory of Textile Chemical Engineering Auxiliaries, School of Environmental and Chemical Engineering, Xi’an Polytechnic University
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Wada R, Shinohara M, Yao S, Yano K, Akitsu K, Koike H, Kinoshita T, Yuzawa H, Nakanishi R, Fujino T, Ikeda T. Significance of mitral L wave to predict late recurrence of atrial fibrillation after radiofrequency catheter ablation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0350] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Mitral L wave, prominent mid-diastolic filling wave in echocardiographic examinations, is associated with severe left ventricular diastolic dysfunction, and that has been reported to predict recurrent atrial fibrillation (AF) after cardioversion. However, association between mitral L wave and the outcome of AF after radiofrequency catheter ablation (RFCA) has not been established.
Objective
The aim of this study is to evaluate the predictive value of mitral L wave on AF recurrence after RFCA.
Methods
250 patients including 164 paroxysmal AF (65.6%) and 86 non-paroxysmal AF (34.4%) who received RFCA in single center from January 2015 to December 2016 were enrolled consecutively. Echocardiographic examinations before RFCA were recorded, and the mitral L wave was defined as a distinct mid-diastolic flow velocity with a peak velocity ≥20 cm/s following the E wave. Systematic follow-up was conducted after RFCA. Univariate and multivariate analyses were carried out to determine the factors predicting late recurrence of AF (LRAF) which means AF recurrence after 3 months. Enrolled patients were divided into groups with the L wave (L-group; n=57) or without the L wave (NL-group; n=193) based on the findings of echocardiographic examinations.
Results
During a follow-up of 35.0±17.6 months, the ratio of LRAF in the L-group was significantly higher than that in the NL-group (32 (56.1%) vs. 41 (21.2%), Hazard ratio [HR]: 3.55, 95% confidence interval [CI]: 2.33 - 5.42, p<0.001). Among the clinical factors, presence of mitral L wave, BNP value, non-paroxysmal AF and moderate-severe mitral regurgitation were related to LRAF. A multivariate analysis using a Cox proportional hazard model found that presence of mitral L wave (HR: 2.67, 95% CI: 1.30 - 5.48, p=0.007) was significantly associated with LRAF.
Conclusion
This study revealed that mitral L wave predicts late recurrence of AF after RFCA.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- R Wada
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - M Shinohara
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - S Yao
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - K Yano
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - K Akitsu
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - H Koike
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - T Kinoshita
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - H Yuzawa
- Toho University Faculty of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Tokyo, Japan
| | - R Nakanishi
- Toho University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Fujino
- Toho University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Ikeda
- Toho University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
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8
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Suda K, Rivard C, Yu H, Fujino T, Koga T, Soh J, Hirsch F, Mitsudomi T. P68.12 Inter-Tumor Heterogeneity of CD44 Expression in Non-Small Cell Lung Cancers / EGFR Mutated Lung Adenocarcinomas. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.699] [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: 11/27/2022]
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9
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Belkin M, Imamura T, Kanelidis A, Henry M, Fujino T, Kagan V, Meehan K, Okray J, Creighton S, LaBuhn C, Song T, Ota T, Jeevanandam V, Nguyen A, Chung B, Smith B, Kalantari S, Grinstein J, Sarswat N, Pinney S, Sayer G, Kim G, Uriel N. Postoperative Tolvaptan Use in Left Ventricular Assist Device Implantation Patients: The TOLVAD Study. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1243] [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: 10/21/2022] Open
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10
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Ohara S, Mitsudomi T, Suda K, Fujino T, Koga T, Soh J, Takemoto T, Shimoji M, Nishino M, Chiba M, Hamada A. P76.71 RYK Confers Drug Tolerance to Osimertinib in Lung Cancer Cells with EGFR Mutations. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1128] [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: 10/21/2022]
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11
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Kannen H, Nomura S, Hazama H, Kaneda Y, Fujino T, Awazu K. Enhancement of Ionization Efficiency Using Zeolite in Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry of Multiple Drugs in Cancer Cells (Mass Spectrometry of Multiple Drugs in Cells Using Zeolite). ACTA ACUST UNITED AC 2020; 9:A0091. [PMID: 33299734 PMCID: PMC7708746 DOI: 10.5702/massspectrometry.a0091] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 09/28/2020] [Indexed: 12/04/2022]
Abstract
Combined therapy using photodynamic therapy (PDT) and chemotherapy has been proposed for anticancer-drug-resistant cancer cells. To evaluate the efficacy of such a combined therapy, the uptakes of an anticancer drug and a photosensitizer in cancer cells must be assessed. Mass spectrometry using matrix-assisted laser desorption/ionization can detect multiple drugs simultaneously. Human prostate cancer cells PC-3 or docetaxel-resistant cancer cells PC-3-DR were incubated in a serum-free medium containing a photosensitizer, protoporphyrin IX (PpIX), and an anticancer drug, docetaxel. A zeolite matrix was created by mixing 6-aza-2-thiothymine and NaY5.6 zeolite, and dissolving in water with 50% acetone. Ions were obtained with a time-of-flight mass spectrometer using a Nd:YAG laser at a wavelength of 355 nm. The cell morphology was preserved by washing the cells with ammonium acetate and drying in a vacuum after drug administration. Protonated PpIX (m/z 563.3) and the sodium adduct ion of docetaxel (m/z 829.9) were obtained from PC-3 cells simultaneously using the zeolite matrix. On the other hand, PpIX was detected but ions originating from docetaxel were not detected from PC-3-DR cells. The result indicated the efficacy of PDT for docetaxel-resistant cancer cells.
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Affiliation(s)
- Hiroki Kannen
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shusei Nomura
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hisanao Hazama
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yasufumi Kaneda
- Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tatsuya Fujino
- Department of Applied Chemistry, Graduate School of Science and Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
| | - Kunio Awazu
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.,Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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12
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Kubota K, Hanawa H, Yokoyama M, Kita S, Hirata K, Fujino T, Kokubun T, Ishibashi T, Kanemura N. Usefulness of Muscle Synergy Analysis in Individuals With Knee Osteoarthritis During Gait. IEEE Trans Neural Syst Rehabil Eng 2020; 29:239-248. [PMID: 33301406 DOI: 10.1109/tnsre.2020.3043831] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To clarify whether there are any muscle synergy changes in individuals with knee osteoarthritis, and to determine whether muscle synergy analysis could be applied to other musculoskeletal diseases. METHODS Subjects in this study included 11 young controls (YC), 10 elderly controls (EC), and 10 knee osteoarthritis patients (KOA). Gait was assessed on a split-belt treadmill at 3 km/h. A non-negative matrix factorization (NNMF) was applied to the electromyogram data matrix to extract muscle synergies. To assess the similarity of each module, we performed the NNMF analysis assuming four modules for all of the participants. Further, we calculated joint angles to compare the kinematic data between the module groups. RESULTS The number of muscle modules was significantly lower in the EC (2-3) and KOA (2-3) groups than in the YC group (3-4), which reflects the merging of late swing and early stance modules. The EC and KOA groups also showed greater knee flexion angles in the early stance phase. Contrarily, by focusing on the module structure, we found that the merging of early and late stance modules is characteristic in KOA. CONCLUSION The lower number of modules in the EC and KOA groups was due to the muscle co-contraction with increased knee flexion angle. Contrarily, the merging of early and late stance modules are modular structures specific to KOA and may be biomarkers for detecting KOA. SIGNIFICANCE Describing the changes in multiple muscle control associated with musculoskeletal degeneration can serve as a fundamental biomarker in joint disease.
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Kinoshita T, Yuzawa H, Wada R, Yano K, Yao S, Akitsu K, Koike H, Shinohara M, Abe A, Fujino T, Ogata H, Ikeda T. Electrocardiographic evaluation of depolarization and repolarization abnormalities in breast cancer patients with HER2-inhibitor related cardiac dysfunction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3401] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The arrhythmic substrates of the myocardium such as depolarization and repolarization abnormalities are thought to reflect cardiac dysfunction prior to the morphologic left ventricular dysfunction. Activation time (AT), recovery time (RT) and T wave peek-end interval dispersion (Tpe-dispersion) are useful indicators of the arrhythmic substrate. We examined the appearance of depolarization and repolarization abnormalities in patients with cancer therapeutics-related cardiac dysfunction (CTRCD) using AT, RT and Tpe-dispersion.
Methods
We conducted a standardized case-control study of CTRCD with 40 patients who developed breast cancer and treated with trastuzumab (13 cases and 27 controls). We assessed the relation between electrocardiographic indexes, including AT, RT and corrected Tpe-dispersion, and CTRCD. QT intervals were measured by Fridericia method, and QT observer 3 software were used for the measurement of all electrocardiographic indexes.
Results
LVEF in case and control group were 45.7±8% and 69.2±6%, respectively. AT in aVR lead was significantly higher in case group compared with control (28.8±7ms vs 22.8±5ms, P=0.02). corrected Tpe-dispersion tended to be higher in case group than that of control group (43.2±19ms vs 31.9±10ms, P=0.06). QT dispersion and RT dispersion were not different between case and control group.
Conclusions
Our study demonstrated that AT in aVR may predict cardiac dysfunction in breast cancer patients with HER2-inhibitor related cardiac dysfunction. More detailed studies using other modalities which can detect depolarization and repolarization abnormalities, including ventricular late potentials and T wave alternans, are needed.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Kinoshita
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Yuzawa
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - R Wada
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Yano
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Yao
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Akitsu
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Koike
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Shinohara
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - A Abe
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Fujino
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Ogata
- Toho University Faculty of Medicine, Division of Breast and Endocrine Surgery (Omori), Department of Surgery, Tokyo, Japan
| | - T Ikeda
- Toho University Faculty of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
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14
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Kondo T, Iwatani Y, Matsuoka K, Fujino T, Umemoto S, Yokomaku Y, Ishizaki K, Kito S, Sezaki T, Hayashi G, Murakami H. Antibody-like proteins that capture and neutralize SARS-CoV-2. Sci Adv 2020; 6:sciadv.abd3916. [PMID: 32948512 PMCID: PMC7556756 DOI: 10.1126/sciadv.abd3916] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/28/2020] [Indexed: 05/10/2023]
Abstract
To combat severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) and any unknown emerging pathogens in the future, the development of a rapid and effective method to generate high-affinity antibodies or antibody-like proteins is of critical importance. We here report high-speed in vitro selection of multiple high-affinity antibody-like proteins against various targets including the SARS-CoV-2 spike protein. The sequences of monobodies against the SARS-CoV-2 spike protein were successfully procured within only 4 days. Furthermore, the obtained monobody efficiently captured SARS-CoV-2 particles from the nasal swab samples of patients and exhibited a high neutralizing activity against SARS-CoV-2 infection (half-maximal inhibitory concentration, 0.5 nanomolar). High-speed in vitro selection of antibody-like proteins is a promising method for rapid development of a detection method for, and of a neutralizing protein against, a virus responsible for an ongoing, and possibly a future, pandemic.
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MESH Headings
- Amino Acid Sequence
- Angiotensin-Converting Enzyme 2
- Antibodies, Immobilized/chemistry
- Antibodies, Immobilized/immunology
- Antibodies, Neutralizing/chemistry
- Antibodies, Neutralizing/immunology
- Antibodies, Neutralizing/metabolism
- Betacoronavirus/genetics
- Betacoronavirus/immunology
- Betacoronavirus/isolation & purification
- COVID-19
- Cell Surface Display Techniques/methods
- Coronavirus Infections/pathology
- Coronavirus Infections/virology
- Dimerization
- Humans
- Kinetics
- Pandemics
- Peptides/chemistry
- Peptides/immunology
- Peptidyl-Dipeptidase A/chemistry
- Peptidyl-Dipeptidase A/immunology
- Peptidyl-Dipeptidase A/metabolism
- Pneumonia, Viral/pathology
- Pneumonia, Viral/virology
- Protein Domains/immunology
- Protein Subunits/chemistry
- Protein Subunits/immunology
- Protein Subunits/metabolism
- RNA, Viral/metabolism
- SARS-CoV-2
- Single-Domain Antibodies/chemistry
- Single-Domain Antibodies/immunology
- Single-Domain Antibodies/metabolism
- Spike Glycoprotein, Coronavirus/chemistry
- Spike Glycoprotein, Coronavirus/immunology
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Affiliation(s)
- T Kondo
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Y Iwatani
- Department of Infectious Diseases and Immunology, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
- Division of Basic Medicine, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - K Matsuoka
- Department of Infectious Diseases and Immunology, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - T Fujino
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - S Umemoto
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Y Yokomaku
- Department of Infectious Diseases and Immunology, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - K Ishizaki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - S Kito
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - T Sezaki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - G Hayashi
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
- Japan Science and Technology Agency (JST), PRESTO, Saitama, Japan
| | - H Murakami
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan.
- Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Nagoya, Japan
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Adachi S, Aguilar Faúndez MAO, Akiba Y, Ali A, Arnold K, Baccigalupi C, Barron D, Beck D, Bianchini F, Borrill J, Carron J, Cheung K, Chinone Y, Crowley K, El Bouhargani H, Elleflot T, Errard J, Fabbian G, Feng C, Fujino T, Goeckner-Wald N, Hasegawa M, Hazumi M, Hill CA, Howe L, Katayama N, Keating B, Kikuchi S, Kusaka A, Lee AT, Leon D, Linder E, Lowry LN, Matsuda F, Matsumura T, Minami Y, Namikawa T, Navaroli M, Nishino H, Peloton J, Pham ATP, Poletti D, Puglisi G, Reichardt CL, Segawa Y, Sherwin BD, Silva-Feaver M, Siritanasak P, Stompor R, Tajima O, Takatori S, Tanabe D, Teply GP, Vergès C. Internal Delensing of Cosmic Microwave Background Polarization B-Modes with the POLARBEAR Experiment. Phys Rev Lett 2020; 124:131301. [PMID: 32302154 DOI: 10.1103/physrevlett.124.131301] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/20/2019] [Accepted: 02/26/2020] [Indexed: 06/11/2023]
Abstract
Using only cosmic microwave background polarization data from the polarbear experiment, we measure B-mode polarization delensing on subdegree scales at more than 5σ significance. We achieve a 14% B-mode power variance reduction, the highest to date for internal delensing, and improve this result to 22% by applying for the first time an iterative maximum a posteriori delensing method. Our analysis demonstrates the capability of internal delensing as a means of improving constraints on inflationary models, paving the way for the optimal analysis of next-generation primordial B-mode experiments.
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Affiliation(s)
- S Adachi
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M A O Aguilar Faúndez
- Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA
- Departamento de Física, FCFM, Universidad de Chile, Blanco Encalada 2008, Santiago, Chile
| | - Y Akiba
- SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan
| | - A Ali
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - K Arnold
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - C Baccigalupi
- International School for Advanced Studies (SISSA), Via Bonomea 265, 34136 Trieste, Italy
- Institute for Fundamental Physics of the Universe (IFPU), Via Beirut 2, 34014 Trieste, Italy
- National Institute for Nuclear Physics (INFN), via Valerio 2, 34127 Trieste, Italy
| | - D Barron
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - D Beck
- AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France
| | - F Bianchini
- School of Physics, University of Melbourne, Parkville VIC 3010, Australia
| | - J Borrill
- Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Space Sciences Laboratory, University of California, Berkeley, California 94720, USA
| | - J Carron
- Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, United Kingdom
| | - K Cheung
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Y Chinone
- Department of Physics, University of California, Berkeley, California 94720, USA
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Berkeley Satellite, the University of California, Berkeley, California 94720, USA
| | - K Crowley
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - H El Bouhargani
- AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France
| | - T Elleflot
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - J Errard
- AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France
| | - G Fabbian
- Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, United Kingdom
| | - C Feng
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801, USA
| | - T Fujino
- Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - N Goeckner-Wald
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - M Hasegawa
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - M Hazumi
- SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Kanagawa 252-0222, Japan
| | - C A Hill
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - L Howe
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - N Katayama
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - B Keating
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - S Kikuchi
- Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - A Kusaka
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), Berkeley Satellite, the University of California, Berkeley, California 94720, USA
- Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
- Research Center for the Early Universe, School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A T Lee
- Department of Physics, University of California, Berkeley, California 94720, USA
- Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Radio Astronomy Laboratory, University of California, Berkeley, California 94720, USA
| | - D Leon
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - E Linder
- Space Sciences Laboratory, University of California, Berkeley, California 94720, USA
| | - L N Lowry
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - F Matsuda
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - T Matsumura
- Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - Y Minami
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Namikawa
- DAMTP, University of Cambridge, Cambridge CB3 0WA, United Kingdom
| | - M Navaroli
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - H Nishino
- Research Center for the Early Universe, School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - J Peloton
- Laboratoire de l'Accélérateur Linéaire, Université Paris-Sud, CNRS/IN2P3, 91400 Orsay, France
| | - A T P Pham
- School of Physics, University of Melbourne, Parkville VIC 3010, Australia
| | - D Poletti
- International School for Advanced Studies (SISSA), Via Bonomea 265, 34136 Trieste, Italy
- Institute for Fundamental Physics of the Universe (IFPU), Via Beirut 2, 34014 Trieste, Italy
- National Institute for Nuclear Physics (INFN), via Valerio 2, 34127 Trieste, Italy
| | - G Puglisi
- Department of Physics, Stanford University, Stanford, California 94305, USA
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - C L Reichardt
- School of Physics, University of Melbourne, Parkville VIC 3010, Australia
| | - Y Segawa
- SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan
| | - B D Sherwin
- Kavli Institute for Cosmology Cambridge, Cambridge CB3 OHA, United Kingdom
| | - M Silva-Feaver
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - P Siritanasak
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - R Stompor
- AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France
| | - O Tajima
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S Takatori
- SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - D Tanabe
- SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - G P Teply
- Department of Physics, University of California, San Diego, California 92093-0424, USA
| | - C Vergès
- AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France
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Mehta N, Fujino T, Dela Cruz M, Holzhauser L, Rodgers D, Kalantari S, Smith B, Sarswat N, Nguyen A, Chung B, Uriel N, Raikhelkar J, Sayer G, Ota T, Song T, Jeevanandam V, Kim G, Grinstein J. Absence of Aortic Valve Opening after Hemodynamic Ramp Optimization Study Does Not Impact LVAD Morbidity of Mortality. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.408] [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: 10/24/2022] Open
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17
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Fujino T, Kumai Y, Nitta D, Lourenco L, Nguyen A, Chung B, Rodgers D, Raikhelkar J, Kim G, Sayer G, Uriel N. Hypogammaglobulinemia Following Heart Transplantation - Prevalence and Clinical Importance. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.035] [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] Open
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18
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Mehta N, Fujino T, Belkin M, DelaCruz M, Yu D, Holzhauser L, Rodgers D, Smith B, Kalantari S, Sarswat N, Chung B, Nguyen A, Uriel N, Raikhelkar J, Sayer G, Song T, Ota T, Jeevanandam V, Kim G, Grinstein J. Prognostication of Residual Mitral Regurgitation or Aortic Insufficiency after Invasive Hemodynamic Ramp Optimization. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.994] [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: 10/24/2022] Open
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19
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Mazzone S, Fujino T, Nguyen A, Chung B, Smith B, Raikhelkar J, Kim G, Sayer G, Uriel N. Post-Heart Transplant Diabetes Mellitus: Incidence, Prevalence and Outcomes. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.627] [Citation(s) in RCA: 2] [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: 10/24/2022] Open
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20
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Imamura T, Nitta D, Fujino T, Nguyen A, Narang N, Chung B, Holzhauser L, Kim G, Raikhelkar J, Rodgers D, Ota T, Jeevanandam V, Burkhoff D, Sayer G, Uriel N. Optimal Cannula Positioning of Heart Mate 3 Left Ventricular Assist Device. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.212] [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] Open
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21
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Xu J, Kondo JN, Fujino T. MALDI Mass Spectrometry of Small Molecules Using Nanometer-sized Clay. ANAL SCI 2020; 36:177-181. [PMID: 31474660 DOI: 10.2116/analsci.19p213] [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] [Indexed: 11/23/2022]
Abstract
Nanometer-sized clay, allophane, was used as the matrix for matrix-assisted laser desorption ionization mass spectrometry (MALDI MS) and applied to the ionization of small molecules. First, the laser desorption ionization mass spectrum of cation-exchanged allophane was measured, and it was found that the cation exchange proceeded smoothly with increasing atomic number of alkali metals in the periodic table. This phenomenon was explained by considering the size of the counter anion on the allophane surface. Then, fructose was measured as the analyte using each alkali-cation-exchanged allophane as the matrix. Contrary to the measurements using allophane itself, the peak intensity of fructose decreased with increasing atomic number of alkali metals in the periodic table. This phenomenon was clarified by considering the stability of alkali cation in the presence of a surface anion, the desorption energy, and the solvation enthalpy of each alkali cation. The applicability of allophane to high molecular weight compounds was also confirmed by measuring cyclodextrin, angiotensin II, and insulin. Finally, a combination of allophane and zeolite was examined by assuming proton relay among allophane, zeolite, and analyte. As a result of proton supply from zeolite to allophane, the peak intensity of the proton sponge (1,8-bis(dimethylamino)naphthalene) was enhanced by almost 2.2 times.
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Affiliation(s)
- Jiawei Xu
- Department of Applied Chemistry, Graduate School of Science and Engineering, Toyo University.,Bio-Nano Electronics Research Centre, Toyo University
| | - Junko N Kondo
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology
| | - Tatsuya Fujino
- Department of Applied Chemistry, Graduate School of Science and Engineering, Toyo University.,Bio-Nano Electronics Research Centre, Toyo University
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22
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Kinoshita T, Yuzawa H, Wada R, Yao S, Yano K, Akitsu K, Shinohara M, Koike H, Suzuki T, Abe A, Fujino T, Ikeda T. P93 The usefulness of dual cardiac autonomic nervous modulation assessment for prediction of mortality in patients with relatively preserved left ventricular ejection fraction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.041] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Recent guidelines have stated that reduced left ventricular ejection fraction (LVEF) is the gold standard marker for identifying patients at risk for cardiac mortality. Although reduced LVEF identifies patients at an increased risk of cardiac arrest, sudden cardiac deaths (SCDs) occur considerably more often in patients with relatively preserved LVEF. Current guidelines on SCDs risk stratification do not adequately cover this general population pool. Heart rate variability (HRV) and heart rate turbulence (HRT) are non-invasive electrocardiography (ECG)-based techniques capable of providing relevant information on the cardiac autonomic nervous modulation. Although a large body of evidence about autonomic nervous modulation markers has been reported, the usefulness of HRV and HRT parameters for risk stratification in such patients with relatively preserved LVEF has not yet been elucidated.
Purpose
This study aimed to evaluate HRV and HRT parameters for predicting cardiac mortality in patients with structural heart disease (SHD), including ischemic heart disease, dilated cardiomyopathy and valvular heart disease, who have mid-range left ventricular dysfunction (LVD).
Methods
We prospectively enrolled 229 patients (187 men, age 63 ± 13 years) with SHD who have mid-range LVD (LVEF > 40%). HRV and HRT parameters based on 24-hour ambulatory ECG recordings (Fukuda Denshi Co., Ltd., Tokyo, Japan) were evaluated as follows; SDNN, triangular index, high and low frequency HRV, turbulence onset and slope. The primary endpoint was all-cause mortality. Univariate and multivariate Cox regression analysis were used to assess the association between these cardiac autonomic nervous modulation and mortality.
Results
During a mean follow-up of 21 ± 11 months, all-cause mortality was seen in 11 (4.8%) patients. Univariate Cox regression analysis showed that reduced SDNN (<50ms), reduced triangular index (<20ms) and HRT category 2 were significantly associated with the primary endpoint (P < 0.05). When HRT category 2 combined with reduced SDNN, Multivariate Cox regression analysis revealed that this combination more strongly associates with the primary endpoint (hazard ratio =7.91, 95%CI, 1.82-34.2; P = 0.006).
Conclusion
Dual cardiac autonomic nervous modulation assessment which combined HRT and HRV could be a superior technique to predict mortality in patients with relatively preserved LVEF.
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Affiliation(s)
- T Kinoshita
- Toho University Faculty of Medicine, Tokyo, Japan
| | - H Yuzawa
- Toho University Faculty of Medicine, Tokyo, Japan
| | - R Wada
- Toho University Faculty of Medicine, Tokyo, Japan
| | - S Yao
- Toho University Faculty of Medicine, Tokyo, Japan
| | - K Yano
- Toho University Faculty of Medicine, Tokyo, Japan
| | - K Akitsu
- Toho University Faculty of Medicine, Tokyo, Japan
| | - M Shinohara
- Toho University Faculty of Medicine, Tokyo, Japan
| | - H Koike
- Toho University Faculty of Medicine, Tokyo, Japan
| | - T Suzuki
- Toho University Faculty of Medicine, Tokyo, Japan
| | - A Abe
- Toho University Faculty of Medicine, Tokyo, Japan
| | - T Fujino
- Toho University Faculty of Medicine, Tokyo, Japan
| | - T Ikeda
- Toho University Faculty of Medicine, Tokyo, Japan
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Shinohara M, Wada R, Akitsu K, Kinoshita T, Yuzawa H, Fujino T, Ikeda T. P3754Comparison of the transdermal bisoprolol patch with the oral bisoprolol fumarate administration as a therapeutic agent for idiopathic frequent premature ventricular contractions. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0606] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The transdermal bisoprolol patch (TB) was designed to maintain a sustained concentration of bisoprolol in plasma by higher trough concentration than the oral bisoporolol fumarate administration (OB). It is unclear whether the TB is as effective in treating idiopathic premature ventricular contractions (PVCs) as the OB.
Purpose
We compared the efficacy between the TB and OB in treating idiopathic PVCs while considering their duration of action.
Methods
Among 198 patients with a PVC count of ≥3,000 beats/24 hours, 84 patients were divided into groups treated with TB 4mg (n=50) or OB 2.5mg (n=34). The PVCs were divided into positive heart rate (HR)-dependent PVCs (P-PVCs) and non-positive HR-dependent PVCs (NP-PVCs) based on the relationship between the hourly PVCs density and hourly mean HR. To evaluate the efficacy, PVC counts by 24-hour Holter electrocardiograms were measured at baseline and at 1 month after the initiation of the therapy.
Results
There were no significant between-group differences for the mean HR, PVC count, or type of PVCs. Both the TB (from 16,692±9,737 to 10,442±10,711 beats/24 hours, P<0.001) and OB (from 19,633±16,298 to 9,235±12,124 beats/24 hours, P<0.001) significantly decreased the total PVC count after the initiation of therapy, and a comparison between the two drugs showed no significant difference (P=0.46). In the P-PVC group, both the TB and OB significantly decreased the total PVC count (P<0.001, P=0.022 respectively), PVC count during the day-time (P<0.001, P=0.030 respectively), and PVC count during the night-time (P=0.0038, P=0.022 respectively). In contrast, in the NP-PVC group, neither the TB nor OB made any significantly change in the total PVC count (P=0.079, P=0.10 respectively), PVC count during the day-time (P=0.35, P=0.12 respectively), or PVC count during the night-time (P=0.11, P=0.12 respectively). The TB exhibited a significant reduction during each time period regarding the changes within 24-hours in the P-PVC count from baseline, while the OB did not significantly reduce the P-PVC count from baseline during each time period between 0 and 5 o'clock.
Conclusions
Compared with the OB, the TB could be used with the same efficacy for reducing the PVC count. The TB could be a more useful therapeutic agent for idiopathic P-PVCs during a 24-hour period than the OB.
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Affiliation(s)
- M Shinohara
- Toho University Faculty of Medicine, Cardiovascular Medicine, Tokyo, Japan
| | - R Wada
- Toho University Faculty of Medicine, Cardiovascular Medicine, Tokyo, Japan
| | - K Akitsu
- Toho University Faculty of Medicine, Cardiovascular Medicine, Tokyo, Japan
| | - T Kinoshita
- Toho University Faculty of Medicine, Cardiovascular Medicine, Tokyo, Japan
| | - H Yuzawa
- Toho University Faculty of Medicine, Cardiovascular Medicine, Tokyo, Japan
| | - T Fujino
- Toho University Faculty of Medicine, Cardiovascular Medicine, Tokyo, Japan
| | - T Ikeda
- Toho University Faculty of Medicine, Cardiovascular Medicine, Tokyo, Japan
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Fujino T, Yuzawa H, Kinoshita T, Shinohara M, Koike H, Akitsu K, Yano K, Wada R, Suzuki T, Ikeda T. P6559Long-term follow-up and outcomes of patients with discontinuation of oral anticoagulant therapy after successful ablation procedures for atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1149] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Oral anticoagulant therapy (OAT) is effective for preventing strokes in atrial fibrillation (AF) patients. Currently, there is controversy regarding the discontinuation of OATs in patients with ablation procedures to eliminate AF.
Aim
We investigated the incidence of major bleeding and ischemic strokes/systemic embolisms in low-risk patients that discontinued OATs after successful AF ablation procedures.
Methods
Of 330 consecutive patients that underwent AF ablation procedures and were prescribed one of the direct oral anticoagulants or warfarin, 207 AF patients (158 men, mean age 61±11 years) who discontinued OATs three months after the procedure were enrolled. The average CHADS2 and HAS-BLED scores were 1.0±0.9 and 1.2±1.0, respectively, which meant that most patients had a low risk for strokes.
Results
During follow-up, 31 patients (15%) had recurrences of AF. Those patients underwent a re-ablation procedure and then re-discontinued their OATs three months after the session. During a 60±13 months follow-up, major bleeding was observed in five patients (2.4%) and was associated with a higher HAS-BLED score (2.2±0.4 vs. 1.1±1.0, P=0.027). In contrast, none of the patients experienced ischemic strokes/systemic embolisms.
Conclusions
This prospective study demonstrated that in patients with successful ablation procedures and low risk scores for AF management, OATs could be discontinued three months after the procedure. Unnecessary continuation of OATs may increase the incidence of major bleeding during the follow-up.
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Affiliation(s)
- T Fujino
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - H Yuzawa
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - T Kinoshita
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - M Shinohara
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - H Koike
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - K Akitsu
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - K Yano
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - R Wada
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - T Suzuki
- Toho University Graduate School of Medicine, Tokyo, Japan
| | - T Ikeda
- Toho University Graduate School of Medicine, Tokyo, Japan
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Fujino T, Kobayashi Y, Suda K, Koga T, Nishino M, Ohara S, Chiba M, Hamada A, Takemoto T, Soh J, Misudomi T. MA09.10 Comprehensive Analysis of Secondary Mutation as Resistance Mechanism to Seven MET-TKIs for MET Exon 14 Skipping in Vitro. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.572] [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: 10/25/2022]
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26
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Hatta S, Fukuhara S, Fujino T, Saito Y, Ito Y, Makita S, Munakata W, Maruyama D, Kusumono M, Izutsu K. THE ROLE OF SURVEILLANCE COMPUTED TOMOGRAPHY IN PATIENTS WITH FOLLICULAR LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.65_2631] [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: 11/11/2022]
Affiliation(s)
- S. Hatta
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Fukuhara
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - T. Fujino
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - Y. Saito
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - Y. Ito
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Makita
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - W. Munakata
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - D. Maruyama
- Hematology; National Cancer Center Hospital; Tokyo Japan
| | - M. Kusumono
- Diagnostic Radiology; National Cancer Center Hospital; Tokyo Japan
| | - K. Izutsu
- Hematology; National Cancer Center Hospital; Tokyo Japan
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27
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Imamura T, Nitta D, Rodgers D, Grinstein J, Kalantari S, Smith B, Raikhelkar J, Kim G, Nguyen A, Narang N, Chung B, Ebong I, Holzhauser L, Fujino T, Juricek C, Combs P, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Estimation of Pulmonary Capillary Wedge Pressure from the HVAD Waveform and Its Prognostic Implications. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.195] [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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28
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Nitta D, Imamura T, Chung B, Nguyen A, Raikhelkar J, Sarswat N, Lourenco L, Smith B, Holzhauser L, Kim G, Ebong I, Fujino T, Narang N, Murks C, Riley T, Powers J, Jeevanandam V, Sayer G, Uriel N. Correlation of ImmuKnow Assay Levels with Rejection and Infection after Heart Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.539] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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29
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Nitta D, Imamura T, Fujino T, Rodgers D, Nguyen A, Holzhauser L, Ebong I, Narang N, Chung B, Song T, Ota T, Juricek C, Jeevanandam V, Raikhelkar J, Kim G, Sayer G, Uriel N. Lower Pulmonary Artery Pulsatility Index after Left Ventricular Assist Device Implantation is Associated with Worse Heart Failure Free Survival. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1130] [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] Open
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Imamura T, Raikhelkar J, Kim G, Smith B, Kalantari S, Nguyen A, Narang N, Chung B, Ebong I, Holzhauser L, Grinstein J, Nitta D, Fujino T, Juricek C, Rodgers D, Combs P, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Aortic Insufficiency is Associated with Hemocompatibility-Related Adverse Events in LVAD Patients. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.159] [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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31
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Narang N, Imamura T, Blair J, Holzhauser L, Ebong I, Belkin M, Kanelidis A, Oehler A, Yu D, Fujino T, Nitta D, Chung B, Nguyen A, Smith B, Raikhelkar J, Sarswat N, Kim G, Jeevanandam V, Sayer G, Uriel N. Ratio of Systolic Blood Pressure to Pulmonary Capillary Wedge Pressure Ratio: A Novel Prognostic Marker in Chronic Heart Failure. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.333] [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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Imamura T, Smith B, Raikhelkar J, Rodgers D, Kim G, Kalantari S, Nguyen A, Narang N, Chung B, Ebong I, Holzhauser L, Nitta D, Fujino T, Juricek C, Combs P, Onsager D, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Right Heart Function Worsens in LVAD Patients with Decoupling between Pulmonary Artery and Wedge Pressures. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.563] [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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33
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Imamura T, Nguyen A, Nitta D, Rodgers D, Kalantari S, Smith B, Raikhelkar J, Narang N, Chung B, Ebong I, Holzhauser L, Fujino T, Juricek C, Combs P, Onsager D, Song T, Ota T, Jeevanandam V, Kim G, Sayer G, Uriel N. Worsening of Right Heart Function Following Left Ventricular Assist Device Implantation - Right Heart Catheter Waveform Analyses. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1166] [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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34
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Fujino T, Suda K, Kobayashi Y, Nishino M, Koga T, Ohara S, Chiba M, Shimoji M, Takemoto T, Mitsudomi T. P1.13-41 In Vitro Evaluation for Optimal MET-TKI Selection in Lung Cancers with MET Mutations Including Exon 14 Skipping. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.898] [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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35
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Mizukami T, Sunakawa Y, Arai H, Chosokabe M, Doi A, Horie Y, Hirakawa M, Saji O, Naruki S, Izawa N, Ogura T, Tsuda T, Enomoto T, Mikami S, Fujino T, Otsubo T, Nakajima T. Dynamic change of immune-related gene expression status during chemoradiotherapy in locally advanced esophageal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy303.024] [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: 11/13/2022] Open
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36
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Yang M, Hashimoto K, Fujino T. Silver nanoparticles loaded on ammonium exchanged zeolite as matrix for MALDI-TOF-MS analysis of short-chain n-alkanes. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.07.002] [Citation(s) in RCA: 3] [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: 10/28/2022]
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37
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Mizukami T, Sakai K, Naruki S, Taniyama T, Horie Y, Izawa N, Tsuda T, Fujino T, Boku N, Yasuda H, Fukunaga T, Nakajima TE, Nishio K. Identification of a FGFR3-TACC3 fusion in esophageal cancer. Ann Oncol 2018; 28:437-438. [PMID: 27771611 DOI: 10.1093/annonc/mdw550] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T Mizukami
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - K Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - S Naruki
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - T Taniyama
- Division of Gastroenterology and Hepatology, Department of Internal Medicine St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - Y Horie
- Department of Gastroenterological and General Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - N Izawa
- Department of Gastroenterological and General Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - T Tsuda
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - T Fujino
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - N Boku
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - H Yasuda
- Internal Medicine 1, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - T Fukunaga
- Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Japan
| | - T Eguchi Nakajima
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - K Nishio
- Department of Internal Medicine, Matsui Hospital, Tokyo, Japan
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Fujii Y, Ding Y, Umezawa T, Akimoto T, Xu J, Uchida T, Fujino T. Detection and Quantification of 4-Methylimidazole in Cola by Matrix-assisted Laser Desorption Ionization Mass Spectrometry with Fe 2O 3 Nanoparticles on Zeolite. ANAL SCI 2018; 34:221-225. [PMID: 29434110 DOI: 10.2116/analsci.34.221] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 11/23/2022]
Abstract
Food additives generally used in carbonated drinks, such as 4-methylimidazole (4MI), caffeine (Caf?), citric acid (CA), and aspartame (Apm), were measured by matrix-assisted laser desorption ionization mass spectrometry (MALDI MS) using nanometer-sized particles of iron oxide (Fe2O3 NPs). The quantification of 4MI in Coca Cola (C-cola) was carried out. In order to improve the reproducibility of the peak intensities, Fe2O3 NPs loaded on ZSM5 zeolite were used as the matrix for quantification. By using 2-ethylimidazole (2EI) as the internal standard, the amount of 4MI in C-cola was determined to range from 88 to 65 μg/355 mL. The results agree with the published value (approx. 72 μg/355 mL). It was found that MALDI using Fe2O3 was applicable to the quantification of 4MI in C-cola.
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Affiliation(s)
- Yosuke Fujii
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University
| | - Yuqi Ding
- Department of Food Inspection, Zhejiang Institute for Food and Drug Control
| | - Taichi Umezawa
- Department of Applied Chemistry, Graduate School of Science and Engineering, Toyo University
| | - Takafumi Akimoto
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University
| | - Jiawei Xu
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University
| | | | - Tatsuya Fujino
- Department of Applied Chemistry, Graduate School of Science and Engineering, Toyo University.,Bio-Nano Electronics Research Centre, Toyo University
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Kobayashi Y, Fujino T, Nishino M, Ohara S, Sesumi Y, Chiba M, Shimoji M, Tomizawa K, Takemoto T, Mitsudomi T. P3.02-059 T790M and C797S as Mechanisms of Acquired Resistance to Dacomitinib in Cell Models. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1588] [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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40
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Ohara S, Kobayashi Y, Fujino T, Sesumi Y, Nishino M, Chiba M, Shimoji M, Tomizawa K, Takemoto T, Mitsudomi T. P3.16-049 Surgery with Continued TKI Therapy After Acquiring Resistance to EGFR or ALK TKI. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1856] [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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41
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Takaoka S, Fujino T, Kawakami Y, Shigeoka S. Prolonged and extensive health effects of methylmercury poisoning (Minamata disease) around the Shiranui sea. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3276] [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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42
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Ouma S, Tsuboi Y, Mawatari S, Yamada T, Asada T, Wakana C, Fujino T. Effectiveness of blood plasmalogen in differentiation among mild cognitive impairment, Mild Alzheimer's disease and normal elderly. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2175] [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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43
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Takaoka S, Fujino T, Kawakami Y. Epidemiological study of sensory disturbance in the methylmercury-polluted and non-polluted areas. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3277] [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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44
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Kitaoka C, Asano T, Fujino T. Direct Measurement and Quantification of Drugs and Their Metabolites in Urine by MALDI-MS Using Zeolite. BCSJ 2017. [DOI: 10.1246/bcsj.20160311] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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45
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Murata K, Kanemura N, Kokubun T, Fujino T, Morishita Y, Onitsuka K, Fujiwara S, Nakajima A, Shimizu D, Takayanagi K. Controlling joint instability delays the degeneration of articular cartilage in a rat model. Osteoarthritis Cartilage 2017; 25:297-308. [PMID: 27756697 DOI: 10.1016/j.joca.2016.10.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/26/2016] [Accepted: 10/10/2016] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Joint instability induced by anterior cruciate ligament (ACL) transection is commonly considered as a predisposing factor for osteoarthritis (OA) of the knee; however, the influence of re-stabilization on the protection of articular cartilage is unclear. The aim of this study was to evaluate the effect of joint re-stabilization on articular cartilage using an instability and re-stabilization ACL transection model. DESIGN To induce different models of joint instability, our laboratory created a controlled abnormal joint movement (CAJM) group and an anterior cruciate ligament transection group (ACL-T). Seventy-five Wistar male rats were randomly assigned to the CAJM (n = 30), ACL-T (n = 30), or no treatment (INTACT) group (n = 15). Cartilage changes were assessed with soft X-ray analysis, histological and immunohistochemistry analysis, and real-time polymerase chain reaction (PCR) analysis at 2, 4, and 12 weeks. RESULTS Joint instability, as indicated by the difference in anterior displacement between the CAJM and ACL-T groups (P < 0.001), and cartilage degeneration, as evaluated according to the Osteoarthritis Research Society International (OARSI) score, were significantly higher in the ACL-T group than the CAJM group at 12 weeks (P < 0.001). Moreover, joint re-stabilization maintained cartilage structure (thickness [P < 0.001], surface roughness [P < 0.001], and glycosaminoglycan stainability [P < 0.001]) and suppressed tumor necrosis factor-alpha (TNF-α) and caspase-3 at 4 weeks after surgery. CONCLUSION Re-stabilization of joint instability may suppress inflammatory cytokines, thereby delaying the progression of OA. Joint instability is a substantial contributor to cartilage degeneration.
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Affiliation(s)
- K Murata
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Saitama, Japan; Department of Physical Therapy, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan
| | - N Kanemura
- Department of Physical Therapy, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan.
| | - T Kokubun
- Department of Physical Therapy, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan
| | - T Fujino
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Saitama, Japan
| | - Y Morishita
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Saitama, Japan
| | - K Onitsuka
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Saitama, Japan
| | - S Fujiwara
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Saitama, Japan
| | - A Nakajima
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Saitama, Japan
| | - D Shimizu
- Department of Physical Therapy, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan
| | - K Takayanagi
- Department of Physical Therapy, School of Health and Social Services, Saitama Prefectural University, Saitama, Japan
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Ding Y, Kawakita K, Xu J, Akiyama K, Fujino T. Analyte-Size-Dependent Ionization and Quantification of Monosaccharides in Human Plasma Using Cation-Exchanged Smectite Layers. Anal Chem 2015; 87:7944-50. [DOI: 10.1021/acs.analchem.5b01770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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)
- Yuqi Ding
- Department
of Food Inspection, Zhejiang Institute for Food and Drug Control, No. 86, Lane 1, Jichang Road, Jianggan District, Hangzhou, Zhejiang, China
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Kento Kawakita
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Jiawei Xu
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Kazuhiko Akiyama
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Tatsuya Fujino
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
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47
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Fujino T, Hatano M, Yao A, Nitta D, Muraoka H, Minatsuki S, Imamura T, Inaba T, Maki H, Kinugawa K, Komuro I. The Reliability of 6-Minute Walk Test to Predict Exercise Capacity in Patients With Pulmonary Hypertension. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.965] [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: 10/23/2022] Open
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48
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Yang M, Fujino T. Quantitative Analysis of Free Fatty Acids in Human Serum Using Biexciton Auger Recombination in Cadmium Telluride Nanoparticles Loaded on Zeolite. Anal Chem 2014; 86:9563-9. [DOI: 10.1021/ac5018869] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Mengrui Yang
- Department
of Chemistry,
Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Tatsuya Fujino
- Department
of Chemistry,
Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan
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49
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Kannen H, Hazama H, Kaneda Y, Fujino T, Awazu K. Development of laser ionization techniques for evaluation of the effect of cancer drugs using imaging mass spectrometry. Int J Mol Sci 2014; 15:11234-44. [PMID: 24968266 PMCID: PMC4139779 DOI: 10.3390/ijms150711234] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/02/2014] [Accepted: 06/09/2014] [Indexed: 12/31/2022] Open
Abstract
Recently, combined therapy using chemotherapy and photodynamic therapy (PDT) has been proposed as a means of improving treatment outcomes. In order to evaluate the efficacy of combined therapy, it is necessary to determine the distribution of the anticancer drug and the photosensitizer. We investigated the use of imaging mass spectrometry (IMS) to simultaneously observe the distributions of an anticancer drug and photosensitizer administered to cancer cells. In particular, we sought to increase the sensitivity of detection of the anticancer drug docetaxel and the photosensitizer protoporphyrin IX (PpIX) by optimizing the ionization-assisting reagents. When we used a matrix consisting of equal weights of a zeolite (NaY5.6) and a conventional organic matrix (6-aza-2-thiothymine) in matrix-assisted laser desorption/ionization, the signal intensity of the sodium-adducted ion of docetaxel (administered at 100 μM) increased about 13-fold. Moreover, we detected docetaxel with the zeolite matrix using the droplet method, and detected PpIX by fluorescence and IMS with α-cyano-4-hydroxycinnamic acid (CHCA) using the spray method.
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Affiliation(s)
- Hiroki Kannen
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Hisanao Hazama
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Yasufumi Kaneda
- Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Tatsuya Fujino
- Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minamiosawa Hachioji, Tokyo 192-0397, Japan.
| | - Kunio Awazu
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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50
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Maki H, Hatano M, Muraoka H, Minatsuki S, Fujino T, Imamura T, Inaba T, Yao A, Kinugawa K, Komuro I. Pulmonary Vasodilators Can Reverse Out-of-Proportional Pulmonary Hypertension in Patients with Left Cardiac Disease. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.840] [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: 10/25/2022] Open
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