529 results on '"Tetsuo Shimizu"'
Search Results
2. A Case of Treatment-resistant Advanced Lung Cancer in a Patient with HIV Infection
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Ippei Miyamoto, Tetsuo Shimizu, Shun Yokota, Yuji Yamakawa, Haruyasu Sakuranaka, Koumei Igei, Naoki Okamoto, and Yasuhiro Gon
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Pulmonary and Respiratory Medicine ,Oncology - Published
- 2022
3. Observation of Cu2O/CuO Heterostructures in Copper Oxide Nanowires Fabricated by Thermal Oxidation Method
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Hiroki MORISHITA, Shunjiro FUJII, Shin-ichi HONDA, Toshitaka KUBO, and Tetsuo SHIMIZU
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General Medicine - Published
- 2022
4. Plasma exosomal <scp>DOK3</scp> reflects immunological states in lung tumor and predicts prognosis of gefitinib treatment
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Ryosuke Ochiai, Kentaro Hayashi, Hiroshi Yamamoto, Risa Fujii, Naomi Saichi, Hiroki Shinchi, Tsuyoshi Ishida, Takeshi Honda, Tetsuo Shimizu, Noriyuki Matsutani, Nobuhiko Seki, Masafumi Kawamura, and Koji Ueda
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Proteomics ,Cancer Research ,Lung Neoplasms ,Antineoplastic Agents ,Gefitinib ,General Medicine ,CD8-Positive T-Lymphocytes ,Prognosis ,Exosomes ,ErbB Receptors ,Oncology ,Carcinoma, Non-Small-Cell Lung ,Mutation ,Quinazolines ,Humans ,Protein Kinase Inhibitors - Abstract
To identify liquid biomarkers that predict clinical outcomes of epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI), we enrolled patients with EGFR gene mutation-positive non-small-cell lung cancer who were intended to receive gefitinib treatment. Using plasma samples obtained prior to gefitinib treatment from 12 enrolled patients, we performed comprehensive proteomic analysis of plasma exosomes to explore proteins correlating with tumor reduction rate (TRR), progression-free survival (PFS), or overall survival (OS). Of the detected 1769 proteins, 119, 130, or 119 proteins demonstrated a strong correlation (|r| 0.5) with TRR, PFS, or OS, respectively. Interestingly, 34 (29%), 41 (32%), or 27 (23%) of them, respectively, were functionally involved in the regulation of the immune response. CD8α chain was consistently listed as a molecule positively correlated with PFS and OS, suggesting that the long-lasting effects of gefitinib may be due to the antitumor effects of CD8
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- 2022
5. Electrical Transport Properties of La1−xSrxMnO3 Thin Films Produced by Metal Organic Decomposition Method
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Hiromi Kobori, Kohei Hamada, Sara Kawaguchi, Toshifumi Taniguchi, and Tetsuo Shimizu
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- 2023
6. Anti-synthetase syndrome-associated interstitial lung disease possibly caused by atezolizumab in a patient with lung adenocarcinoma: a case report
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Ippei Miyamoto, Tetsuo Shimizu, Ryo Kusahana, Masayuki Nomoto, Daishi Fujiwara, Tsukasa Nishizawa, Kentaro Hayashi, Yoshiko Nakagawa, and Yasuhiro Gon
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Pulmonary and Respiratory Medicine - Abstract
Background Anti-aminoacyl-tRNA synthetase (ARS) antibody-positive patients present with a variety of symptoms, including interstitial lung disease (ILD), which is termed anti-synthetase syndrome (ASS). But it is rare that ASS-ILD is considered an immune-related adverse event after the use of immune checkpoint inhibitors (ICIs). Case presentation A 47-year-old male with advanced lung adenocarcinoma was treated with platinum and ICI combination immunotherapy and was followed up as an outpatient. Nine months after the start of treatment, he developed a fever and cough, and imaging findings showed lung consolidations in the bilateral lower lung fields. The patient was positive for anti- ARS antibodies and was considered to have developed ASS-ILD due to ICIs remitted with steroid therapy. The patient was found to be positive for anti-ARS antibodies before ICI administration, and the antibody titer was elevated compared to that before ICI administration. Conclusions The examination of anti-ARS antibodies pior to the administration of ICIs may be useful in predicting the development of ASS-ILD.
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- 2023
7. Suppression of copper surface oxidation by electrophoretically deposited graphene oxide film
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Nan Ye, Kazuto Hatakeyama, Mitsuhiro Okada, Tetsuo Shimizu, and Toshitaka Kubo
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General Physics and Astronomy - Abstract
This work investigated the oxidation suppression effect of a reduced graphene oxide (rGO) film applied to a Cu substrate, which may have application in electrical connectors. To ensure prolonged low electrical contact resistance, a thin GO film was formed using an electrophoretic deposition method and subsequently heated to generate rGO. The surface morphology and thickness of the rGO film were assessed using atomic force microscopy and transmission electron microscopy. The thickness of the rGO film was estimated to be 5–7 nm, and the electrical contact resistance for the Cu substrate with and without an rGO film was 20 and 8 mΩ, respectively, at a contact load of 2 N. After accelerating the oxidation of the substrate by heating for 30 min at 180 °C under a dry air atmosphere, the formation of a Cu2O layer on the Cu substrate was confirmed by Raman spectroscopy and electron energy loss spectroscopy. The thickness of this oxide layer with and without an rGO film was 1.5 and 6 nm, respectively. In addition, the electrical contact resistance for the Cu substrate with and without the rGO film was 40 and 200 mΩ, respectively, at a contact load of 2 N. These results suggest that the thin rGO coating suppressed oxidation of the metal substrate while also suppressing the increase in contact resistance.
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- 2023
8. Successful treatment of refractory brain metastases from <scp>ALK</scp> ‐positive lung cancer with lorlatinib
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Yoshiko Nakagawa, Tetsuo Shimizu, Hisato Hiranuma, and Yasuhiro Gon
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Pulmonary and Respiratory Medicine ,Oncology ,General Medicine - Published
- 2022
9. 気管支潰瘍を伴った慢性好酸球性肺炎の一例
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Eichi Takahashi, Yoshiko Nakagawa, Ryouta Nakayama, Takashi Nakagawa, Ryo Kusahana, Yusuke Jinno, Shun Yokota, Yuji Yamakawa, Tadaharu Nakamoto, Akifumi Hirata, Daishi Fujiwara, Kentaro Hayashi, Komei Igei, Tetsuo Shimizu, and Yasuhiro Gon
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General Medicine - Published
- 2022
10. Incidence and risk factors for hyperkalaemia in patients treated for COVID‐19 with nafamostat mesylate
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Kentaro Kodama, Toru Imai, Yasuo Asai, Yutaka Kozu, Kentaro Hayashi, Tetsuo Shimizu, Yasuhiro Gon, and Susumu Ootsuka
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Pharmacology ,Pancreatitis ,Risk Factors ,SARS-CoV-2 ,Incidence ,Humans ,Hyperkalemia ,Pharmacology (medical) ,Guanidines ,Dexamethasone ,Benzamidines ,Retrospective Studies ,COVID-19 Drug Treatment - Abstract
Nafamostat mesylate (NM) is used clinically in combination with antiviral drugs to treat coronavirus disease (COVID-19). One of the adverse events of NM is hyperkalaemia due to inhibition of the amiloride-sensitive sodium channels (ENaC). The incidence and risk factors for hyperkalaemia due to NM have been studied in patients with pancreatitis but not in COVID-19. COVID-19 can be associated with hypokalaemia or hyperkalaemia, and SARS-CoV-2 is thought to inhibit ENaC. Therefore, frequency and risk factors for hyperkalaemia due to NM may differ between COVID-19 and pancreatitis. Hyperkalaemia may worsen the respiratory condition of patients. The objective of this study was to determine the incidence and risk factors for hyperkalaemia in COVID-19 patients treated with favipiravir, dexamethasone and NM.This retrospective study reviewed the records of hospitalized COVID-19 patients treated with favipiravir and dexamethasone, with or without NM, between March 2020 and January 2021. Multivariable logistic regression analysis was performed to identify the risk factors for hyperkalaemia.Of 45 patients who received favipiravir and dexamethasone with NM for the treatment of COVID-19, 21 (47%) experienced hyperkalaemia. The duration of NM administration was a significant predictor of hyperkalaemia (odds ratio: 1.55, 95% confidence interval: 1.04-2.31, p = 0.031). The receiver-operating characteristic curve analysis determined that the cut-off value for predicting the number of days until the onset of hyperkalaemia was 6 days and the area under the curve was 0.707.This study revealed that the incidence of hyperkalaemia is high in patients treated for COVID-19 with NM, and that the duration of NM administration is a key risk factor. When NM is administered for the treatment of COVID-19, it should be discontinued within 6 days to minimize the risk of hyperkalaemia.
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- 2022
11. Magneto-Transport Properties and Hole Self-Doping due to Excess Oxygen Addition in Polycrystalline LaMnO3
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Hiromi Kobori, Megumi Sogabe, Akinori Hoshino, Toshifumi Taniguchi, and Tetsuo Shimizu
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Mechanics of Materials ,Mechanical Engineering ,General Materials Science ,Condensed Matter Physics - Abstract
We have presented the study on magneto-transport properties and hole self-doping due to excess oxygen addition in polycrystalline LaMnO3 (LMO). The polycrystalline LMO samples were prepared by use of a solid-state reaction method. Powder mixtures with a molar ratio of 1:1 between La2O3 and Mn2O3 were pre-annealed at 1100oC for 18 hours in the atmospheres of O2, He and vacuum. By this pre-annealing, non-crystalline LMO samples were produced. After that, the non-crystalline LMO samples were grinded and were pressed into pellets at the pressure of 3t/cm3. The pellets were annealed at 1100oC and 1300oC for 18 hours in the same atmospheres as the pre-annealing. Through these processes, crystalline LMO samples were produced. To investigate the crystallographic structure of the LMO samples, X-ray diffraction (XRD) measurements have been performed by use of Cu-K radiation. From the results of XRD measurements, we have found that all LMO samples have perovskite structure and are polycrystalline. In addition, to investigate the surface structure of the LMO samples, scanning electron microscope (SEM) measurements have been carried out. Electrical resistivities (ERs) for the LMO samples have been measured as a function of temperature (4K-300K). The ERs of the LMO samples produced in O2 atmosphere show lower values as compared with other LMO ones produced in He and vacuum atmospheres. Especially, the temperature dependence of the ER for a LMO sample produced at the annealing temperature of 1100oC in O2 atmosphere shows metallic conduction. Thus, we have considered that this LMO sample has the largest hole self-doping concentration in all LMO ones. In addition, the magnetic field dependences of the magneto-resistance (MR) ratios for the LMO samples have been measured at several temperatures. The ferromagnetic behaviors on the MR ratios have been observed for LMO samples produced in O2 and He atmospheres.
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- 2022
12. SpO2/FIO2 ratio 3 days after treatment with tocilizumab is a prognostic factor in patients with COVID-19: A retrospective cohort study
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Yusuke Kurosawa, Yutaka Kozu, Kaori Soda, Yasunori Itoda, Naho Furusho, Ryosuke Ozoe, Yusuke Jinno, Masayuki Nomoto, Akifumi Hirata, Mamiko Hoshi, Shiho Yamada, Tsukasa Nishizawa, Kenichi Sugaya, Sotaro Shikano, Kentaro Hayashi, Hisato Hiranuma, Tetsuo Shimizu, Tadateru Takayama, Kazuo Chin, and Yasuhiro Gon
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Background: Tocilizumab is considered a critical treatment for severe COVID-19. Thus far, there are no established means of predicting outcomes of administering tocilizumab. Our goal was to determine the factors that predict the prognosis of patients with COVID-19 receiving tocilizumab. Methods: All patients admitted to our hospital from March 2020 to July 2021 who had received tocilizumab for COVID-19 were retrospectively identified from hospital charts. We identified 92 patients who were eligible for this observational cohort study. We assessed age, dyspnoea, number of comorbidities, history of cancer, neutrophil and lymphocyte counts, neutrophil/lymphocyte ratio, lactate dehydrogenase, and total bilirubin. We also analysed the relationship between mortality and oxygen saturation/fraction of inspired oxygen (SpO2/FIO2) and ratio of oxygen concentration to respiratory rate (ROX index). We assessed these data using the Cox proportional hazard and ROC curve models. Results: Survivors (n = 56; mean age 65 years) were younger than those who died (n = 36; mean age 78 years). According to multivariable analysis, multiple comorbidities, history of cancer, CURB-65 score, neutrophil and lymphocyte counts, neutrophil/lymphocyte ratio, and lactate dehydrogenase were all greater in those who died than in those who survived. There were no significant differences in dyspnoea and total bilirubin. The SpO2/FIO2 ratio 3 days after treatment with tocilizumab was strongly associated with subsequent mortality. According to multivariate analysis, of the variables analysed, only the SpO2/FIO2 ratio 3 days after treatment with tocilizumab was significantly associated with mortality rate (p = 0.029; hazard ratio = 0.987, 95% confidence interval 0.977–0.997). Conclusions: The SpO2/FIO2 ratio 3 days after treatment with tocilizumab is a useful prognostic indicator in patients with COVID-19. Our findings indicate that aggressive respiratory therapy and/or additional treatment should be instigated when the SpO2/FIO2 ratio has not improved 3 days after treatment with tocilizumab.
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- 2023
13. A Case of Consecutive Pneumocystis Pneumonia and Varicella Pneumoniaduring the Treatment of Miliary Tuberculosis
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Akifumi Hirata, Tadaharu Nakamoto, Yusuke Kurosawa, Eichi Takahashi, Yoshiko Nakagawa, Hisato Hiranuma, Tetsuo Shimizu, Noriaki Takahashi, and Yasuhiro Gon
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- 2021
14. Accommodation statistics: the current issues and an innovation
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Nguyen Van Truong, Sunkyung Choi, Tetsuo Shimizu, and Takeshi Kurihara
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Overdispersion ,business.industry ,Tourism, Leisure and Hospitality Management ,Geography, Planning and Development ,Statistics ,Variance (accounting) ,Current (fluid) ,business ,Accommodation ,Tourism ,Mathematics - Abstract
In tourism accommodation statistics, accuracy (variance and bias) is fundamental. However, minimizing both the variance and bias of the estimate is a challenge due to the trade-off between the two....
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- 2021
15. Needs of early intervention services in community-based integrated mental health care systems in Japan
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Takashi Uchino, Eriko Fukui, Youji Takubo, Momoko Iwai, Naoyuki Katagiri, Naohisa Tsujino, Haruhiko Imamura, Chiyo Fujii, Kuniaki Tanaka, Tetsuo Shimizu, and Takahiro Nemoto
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Purpose: There is a global movement to develop and implement community-based integrated mental health systems. The present study aimed to clarify needs and perceptions of early intervention in those systems among individuals with mental illness and healthy people in Japan. Methods: A new questionnaire was developed for this internet survey. Data from 500 outpatients with depression and 500 healthy subjects were sampled according to the demographics of the Japanese population and were analyzed descriptively. Results: Over 90% of healthy subjects and over 70% of patients were unaware of the common age of onset or lifetime prevalence of mental illness. Over 90% of the healthy subjects and about 70% of the patients could not describe any services where they would feel comfortable discussing mental health problems. In both groups, “adolescents and young adults” were ranked first as a target population for mental health and illness policies. The top requirements for the integrated care systems were mainly related to early intervention, such as promotion and awareness of correct knowledge of mental illness, preventive support for mental health problems before the onset of mental illness, and support for people in the early years after illness onset. Conclusion: The dissemination of correct knowledge and awareness-raising actions for society and the implementation of specific services targeting the early stage of mental illness are societal requirements. These services need to be considered as components in the integrated mental health care systems that are currently being established in Japan.
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- 2022
16. Tourism-led economic contribution, interregional repercussion effects, and intersectoral propagation activities in Tokyo Metropolitan
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Oscar Tiku and Tetsuo Shimizu
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Economics and Econometrics ,Economics, Econometrics and Finance (miscellaneous) - Abstract
This study aims to investigate the contribution of visitors’ expenditure to Tokyo Metropolitan’s economy including its decomposition, the interregional repercussion effect between Tokyo and the rest of Japan, and the intersectoral propagation activities between tourism and the other sector in Tokyo based on two-region interregional input–output model and Miyazawa’s partitioned matrix multipliers. Measurement in tworegion model yielded to a higher value compared to single-region model, where domestic visitors lead the major contribution in overall, prominently on services sectors. The indirect and feedback effects to industries in Tokyo were strongly linked to tertiary sector, while spillover effect to the rest of Japan was more widely distributed. The economic activities in Tokyo were highly dependent on the industries in the rest of Japan, in similar manner as tourism on the other sectors within Tokyo. Tourism industries have strong inducible effects on the other sector. Considering these interregional and intersectoral interdependencies, improving the tourism sector in Tokyo may imply a promising effect to benefit the economy of Tokyo and subsequently other Japanese regions.
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- 2022
17. A case of acute exacerbation of chronic spontaneous urticaria due to COVID-19 immediately after omalizumab administration
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Koremasa Hayama, Satoshi Izaki, Kentaro Hayashi, Yusuke Kurosawa, Shiho Yamada, Tetsuo Shimizu, Yasuhiro Gon, and Hideki Fujita
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Immunology and Allergy ,Dermatology - Published
- 2022
18. Author response for 'Clinical significance of pre‐diabetes, undiagnosed diabetes, and diagnosed diabetes on clinical outcomes in COVID‐19: Integrative analysis from the Japan COVID‐19 Task Force'
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null Takahiro Fukushima, null Shotaro Chubachi, null Ho Namkoong, null Takanori Asakura, null Hiromu Tanaka, null Ho Lee, null Shuhei Azekawa, null Yukinori Okada, null Ryuji Koike, null Akinori Kimura, null Seiya Imoto, null Satoru Miyano, null Seishi Ogawa, null Takanori Kanai, null Koichi Fukunaga, null Shiro Otake, null Kensuke Nakagawara, null Atsuho Morita, null Mayuko Watase, null Kaori Sakurai, null Takuya Kusumoto, null Katsunori Masaki, null Hiroki Kabata, null Hirofumi Kamata, null Makoto Ishii, null Naoki Hasegawa, null Kazuhisa Takahashi, null Norihiro Harada, null Toshio Naito, null Makoto Hiki, null Yasushi Matsushita, null Haruhi Takagi, null Ryousuke Aoki, null Ai Nakamura, null Sonoko Harada, null Hitoshi Sasano, null Shinnosuke Ikemura, null Satoshi Okamori, null Hideki Terai, null Junichi Sasaki, null Hiroshi Morisaki, null Yoshifumi Uwamino, null Kosaku Nanki, null Yohei Mikami, null Sho Uchida, null Shunsuke Uno, null Rino Ishihara, null Yuta Matsubara, null Tomoyasu Nishimura, null Takunori Ogawa, null Toshiro Sato, null Tetsuya Ueda, null Masanori Azuma, null Ryuichi Saito, null Toshikatsu Sado, null Yoshimune Miyazaki, null Ryuichi Sato, null Yuki Haruta, null Tadao Nagasaki, null Yoshinori Yasui, null Yoshinori Hasegawa, null Soichiro Ueda, null Ai Tada, null Masayoshi Miyawaki, null Masaomi Yamamoto, null Eriko Yoshida, null Reina Hayashi, null Tomoki Nagasaka, null Sawako Arai, null Yutaro Kaneko, null Kana Sasaki, null Takashi Ishiguro, null Taisuke Isono, null Shun Shibata, null Yuma Matsui, null Chiaki Hosoda, null Kenji Takano, null Takashi Nishida, null Yoichi Kobayashi, null Yotaro Takaku, null Noboru Takayanagi, null Etsuko Tagaya, null Masatoshi Kawana, null Ken Arimura, null Yasushi Nakamori, null Kazuhisa Yoshiya, null Fukuki Saito, null Tomoyuki Yoshihara, null Daiki Wada, null Hiromu Iwamura, null Syuji Kanayama, null Shuhei Maruyama, null Takanori Hasegawa, null Kunihiko Takahashi, null Tatsuhiko Anzai, null Satoshi Ito, null Akifumi Endo, null Yuji Uchimura, null Yasunari Miyazaki, null Takayuki Honda, null Tomoya Tateishi, null Shuji Tohda, null Naoya Ichimura, null Kazunari Sonobe, null Chihiro Tani Sassa, null Jun Nakajima, null Masumi Ai, null Takashi Yoshiyama, null Ken Ohta, null Hiroyuki Kokuto, null Hideo Ogata, null Yoshiaki Tanaka, null Kenichi Arakawa, null Masafumi Shimoda, null Takeshi Osawa, null Yasushi Nakano, null Yukiko Nakajima, null Ryusuke Anan, null Ryosuke Arai, null Yuko Kurihara, null Yuko Harada, null Kazumi Nishio, null Yoshikazu Mutoh, null Tomonori Sato, null Reoto Takei, null Satoshi Hagimoto, null Yoichiro Noguchi, null Yasuhiko Yamano, null Hajime Sasano, null Sho Ota, null Yusuke Suzuki, null Sohei Nakayama, null Keita Masuzawa, null Tomomi Takano, null Kazuhiko Katayama, null Koji Murakami, null Mitsuhiro Yamada, null Hisatoshi Sugiura, null Hirohito Sano, null Shuichiro Matsumoto, null Nozomu Kimura, null Yoshinao Ono, null Hiroaki Baba, null Rie Baba, null Daisuke Arai, null Takayuki Ogura, null Hidenori Takahashi, null Shigehiro Hagiwara, null Genta Nagao, null Shunichiro Konishi, null Ichiro Nakachi, null Hiroki Tateno, null Isano Hase, null Shuichi Yoshida, null Shoji Suzuki, null Miki Kawada, null Hirohisa Horinouchi, null Fumitake Saito, null Keiko Mitamura, null Masao Hagihara, null Junichi Ochi, null Tomoyuki Uchida, null Ryuya Edahiro, null Yuya Shirai, null Kyuto Sonehara, null Tatsuhiko Naito, null Kenichi Yamamoto, null Shinichi Namba, null Ken Suzuki, null Takayuki Shiroyama, null Yuichi Maeda, null Takuro Nii, null Yoshimi Noda, null Takayuki Niitsu, null Yuichi Adachi, null Takatoshi Enomoto, null Saori Amiya, null Reina Hara, null Toshihiro Kishikawa, null Shuhei Yamada, null Shuhei Kawabata, null Noriyuki Kijima, null Masatoshi Takagaki, null Noa Sasa, null Yuya Ueno, null Motoyuki Suzuki, null Norihiko Takemoto, null Hirotaka Eguchi, null Takahito Fukusumi, null Takao Imai, null Munehisa Fukushima, null Haruhiko Kishima, null Hidenori Inohara, null Kazunori Tomono, null Kazuto Kato, null Haruhiko Hirata, null Yoshito Takeda, null Atsushi Kumanogoh, null Naoki Miyazawa, null Yasuhiro Kimura, null Reiko Sado, null Hideyasu Sugimoto, null Akane Kamiya, null Naota Kuwahara, null Akiko Fujiwara, null Tomohiro Matsunaga, null Yoko Sato, null Takenori Okada, null Takashi Inoue, null Toshiyuki Hirano, null Keigo Kobayashi, null Hatsuyo Takaoka, null Koichi Nishi, null Masaru Nishitsuji, null Mayuko Tani, null Junya Suzuki, null Hiroki Nakatsumi, null Hidefumi Koh, null Tadashi Manabe, null Yohei Funatsu, null Fumimaro Ito, null Takahiro Fukui, null Keisuke Shinozuka, null Sumiko Kohashi, null Masatoshi Miyazaki, null Tomohisa Shoko, null Mitsuaki Kojima, null Tomohiro Adachi, null Motonao Ishikawa, null Kenichiro Takahashi, null Kazuyoshi Watanabe, null Yoshihiro Hirai, null Hidetoshi Kawashima, null Atsuya Narita, null Kazuki Niwa, null Yoshiyuki Sekikawa, null Hisako Sageshima, null Yoshihiko Nakamura, null Kota Hoshino, null Junichi Maruyama, null Hiroyasu Ishikura, null Tohru Takata, null Takashi Ogura, null Hideya Kitamura, null Eri Hagiwara, null Kota Murohashi, null Hiroko Okabayashi, null Takao Mochimaru, null Shigenari Nukaga, null Ryosuke Satomi Yoshitaka Oyamada, null Nobuaki Mori, null Tomoya Baba, null Yasutaka Fukui, null Mitsuru Odate, null Shuko Mashimo, null Yasushi Makino, null Kazuma Yagi, null Mizuha Hashiguchi, null Junko Kagyo, null Tetsuya Shiomi, null Kodai Kawamura, null Kazuya Ichikado, null Kenta Nishiyama, null Hiroyuki Muranaka, null Kazunori Nakamura, null Satoshi Fuke, null Hiroshi Saito, null Tomoya Tsuchida, null Shigeki Fujitani, null Mumon Takita, null Daiki Morikawa, null Toru Yoshida, null Takehiro Izumo, null Minoru Inomata, null Naoyuki Kuse, null Nobuyasu Awano, null Mari Tone, null Akihiro Ito, null Toshio Odani, null Masaru Amishima, null Takeshi Hattori, null Yasuo Shichinohe, null Takashi Kagaya, null Toshiyuki Kita, null Kazuhide Ohta, null Satoru Sakagami, null Kiyoshi Koshida, null Morio Nakamura, null Koutaro Yokote, null Taka‐Aki Nakada, null Ryuzo Abe, null Taku Oshima, null Tadanaga Shimada, null Kentaro Hayashi, null Tetsuo Shimizu, null Yutaka Kozu, null Hisato Hiranuma, null Yasuhiro Gon, null Namiki Izumi, null Kaoru Nagata, null Ken Ueda, null Reiko Taki, null Satoko Hanada, null Naozumi Hashimoto, null Keiko Wakahara, null Koji Sakamoto, null Norihito Omote, null Akira Ando, null Yu Kusaka, null Takehiko Ohba, null Susumu Isogai, null Aki Ogawa, null Takuya Inoue, null Nobuhiro Kodama, null Yasunari Kaneyama, null Shunsuke Maeda, null Takashige Kuraki, null Takemasa Matsumoto, null Masahiro Harada, null Takeshi Takahashi, null Hiroshi Ono, null Toshihiro Sakurai, null Takayuki Shibusawa, null Yusuke Kawamura, null Akiyoshi Nakayama, null Hirotaka Matsuo, null Yoshifumi Kimizuka, null Akihiko Kawana, null Tomoya Sano, null Chie Watanabe, null Ryohei Suematsu, null Makoto Masuda, null Aya Wakabayashi, null Hiroki Watanabe, null Suguru Ueda, null Masanori Nishikawa Ayumi Yoshifuji, null Kazuto Ito, null Saeko Takahashi, null Kota Ishioka, null Yusuke Chihara, null Mayumi Takeuchi, null Keisuke Onoi, null Jun Shinozuka, null Atsushi Sueyoshi, null Yoji Nagasaki, null Masaki Okamoto, null Sayoko Ishihara, null Masatoshi Shimo, null Yoshihisa Tokunaga, null Masafumi Watanabe, null Sumito Inoue, null Akira Igarashi, null Masamichi Sato, null Nobuyuki Hizawa, null Yoshiaki Inoue, null Shigeru Chiba, null Kunihiro Yamagata, null Yuji Hiramatsu, null Hirayasu Kai, null Satoru Fukuyama, null Yoshihiro Eriguchi, null Akiko Yonekawa, null Keiko Kano, null Koichiro Matsumoto, null Kensuke Kanaoka, null Shoichi Ihara, null Kiyoshi Komuta, null Koichiro Asano, null Tsuyoshi Oguma, null Yoko Ito, null Satoru Hashimoto, null Masaki Yamasaki, null Yu Kasamatsu, null Yuko Komase, null Naoya Hida, null Takahiro Tsuburai, null Baku Oyama, null Yuichiro Kitagawa, null Tetsuya Fukuta, null Takahito Miyake, null Shozo Yoshida, null Shinji Ogura, null Minoru Takada, null Hidenori Kanda, null Shinji Abe, null Yuta Kono, null Yuki Togashi, null Hiroyuki Takoi, null Ryota Kikuchi, null Shinichi Ogawa, null Tomouki Ogata, null Shoichiro Ishihara, null Arihiko Kanehiro, null Shinji Ozaki, null Yasuko Fuchimoto, null Sae Wada, null Nobukazu Fujimoto, null Kei Nishiyama, null Mariko Terashima, null Satoru Beppu, null Kosuke Yoshida, null Osamu Narumoto, null Hideaki Nagai, null Nobuharu Ooshima, null Mitsuru Motegi, null Akira Umeda, null Kazuya Miyagawa, null Hisato Shimada, null Mayu Endo, null Yoshiyuki Ohira, null Hironori Sagara, null Akihiko Tanaka, null Shin Ohta, null Tomoyuki Kimura, null Yoko Shibata, null Yoshinori Tanino, null Takefumi Nikaido, null Hiroyuki Minemura, null Yuki Sato, null Yuichiro Yamada, null Takuya Hashino, null Masato Shinoki, null Hajime Iwagoe, null Hiroshi Takahashi, null Kazuhiko Fujii, null Hiroto Kishi, null Tomoo Ishii, null Masayuki Kanai, null Tomonori Imamura, null Tatsuya Yamashita, null Masakiyo Yatomi, null Toshitaka Maeno, null Shinichi Hayashi, null Mai Takahashi, null Mizuki Kuramochi, null Isamu Kamimaki, null Yoshiteru Tominaga, null Mitsuyoshi Utsugi, null Akihiro Ono, null Toru Tanaka, null Takeru Kashiwada, null Kazue Fujita, null Yoshinobu Saito, null Masahiro Seike, null Masahiro Kanai, null Ryunosuke Saiki, null Takayoshi Hyugaji, null Eigo Shimizu, null Kotoe Katayama, null Satoru Miyawaki, null Meiko Takahashi, null Fumihiko Matsuda, null Yosuke Omae, null Yasuhito Nannya, null Takafumi Ueno, null Yuko Kitagawa, null Katsushi Tokunaga, and null The Japan COVID‐19 Task Force
- Published
- 2022
19. Effective Resources to Mobilize Women Entrepreneurship: A Success Case Study of Family Tourism Businesses in Tioman Island, Malaysia
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Nurzafirah Dan and Tetsuo Shimizu
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Renewable Energy, Sustainability and the Environment ,Geography, Planning and Development ,family tourism business ,resources ,women ,empowerment ,sustainability ,case study ,Building and Construction ,Management, Monitoring, Policy and Law - Abstract
Family-owned tourism businesses have unique resources to empower women in remote island destinations. There is limited literature that postulates the resource acquisition to mobilize women entrepreneurs within the family business study. Hence, this paper provided empirical knowledge on family tourism businesses methods to mobilize women entrepreneurs in rural Tioman Island in Malaysia. This study employed a qualitative case study approach by applying in-depth interviews for data collection. A successful case study was carried out in Tioman Island with 11 women entrepreneurs who have been actively involved in family tourism business operations since the 1980s. The resulting opportunities from the family organization setting, familiness nature and tourism industry as a setting modifier have greatly mobilized women into family tourism entrepreneurship. Thus, this case study provided comprehensive information on family tourism businesses’ implications on women entrepreneurs’ competitiveness in Tioman Island.
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- 2022
- Full Text
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20. Large-Scale 1T'-Phase Tungsten Disulfide Atomic Layers Grown by Gas-Source Chemical Vapor Deposition
- Author
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Mitsuhiro Okada, Jiang Pu, Yung-Chang Lin, Takahiko Endo, Naoya Okada, Wen-Hsin Chang, Anh Khoa Augustin Lu, Takeshi Nakanishi, Tetsuo Shimizu, Toshitaka Kubo, Yasumitsu Miyata, Kazu Suenaga, Taishi Takenobu, Takatoshi Yamada, and Toshifumi Irisawa
- Subjects
General Engineering ,General Physics and Astronomy ,General Materials Science - Abstract
The control of crystal polymorphism and exploration of metastable, two-dimensional, 1T'-phase, transition-metal dichalcogenides (TMDs) have received considerable research attention. 1T'-phase TMDs are expected to offer various opportunities for the study of basic condensed matter physics and for its use in important applications, such as devices with topological states for quantum computing, low-resistance contact for semiconducting TMDs, energy storage devices, and as hydrogen evolution catalysts. However, due to the high energy difference and phase change barrier between 1T' and the more stable 2H-phase, there are few methods that can be used to obtain monolayer 1T'-phase TMDs. Here, we report on the chemical vapor deposition (CVD) growth of 1T'-phase WS
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- 2022
21. Comprehensive genetic analysis of histological components of combined small cell carcinoma
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Yuko Iida, Yoko Nakanishi, Tetsuo Shimizu, Masayuki Nomoto, Yoshiko Nakagawa, Reiko Ito, Noriaki Takahashi, Shinobu Masuda, and Yasuhiro Gon
- Subjects
Pulmonary and Respiratory Medicine ,Repressor Proteins ,Lung Neoplasms ,Oncology ,Carcinoma, Non-Small-Cell Lung ,Humans ,General Medicine ,Carcinoma, Small Cell ,Small Cell Lung Carcinoma ,Transcription Factors - Abstract
Combined small-cell lung cancer (cSCLC) is a rare type of small-cell lung cancer (SCLC) that includes both SCLC and non-small-cell lung cancer (NSCLC). The molecular biological mechanisms underlying the heterogeneity of histological types in combined or metachronously transformed SCLC (mtSCLC) remain unclear. This study aimed to investigate the relationship between genetic alterations and each histological component heterogeneously detected in cSCLC and mtSCLC.This study included four cSCLC cases and one mtSCLC case. Formalin-fixed and paraffin-embedded sections of each histological component of these tumors were subjected to next-generation sequencing (NGS) and quantitative reverse transcription-polymerase chain reaction to investigate the genetic mutations and expression levels of neuroendocrine cell-specific transcription factors (achaete-scute homolog-1 [ASCL1], brain-2 [BRN2] also known as POU domain class 3 transcription factor 2, nuclear factor 1 B [NF1B], insulinoma-associated protein 1 [INSM1], and thyroid transcription factor-1 [TTF-1]).NGS analysis revealed that SCLC and NSCLC components share the same somatic mutations detected most frequently in TP53, and also in RB1 and EGFR. Gene expression analysis showed ASCL1 expression was significantly lower in the NSCLC component than in the SCLC component.We conclude that the morphological evolution of heterogeneous histological components in cSCLC may be associated with differences in ASCL1 expression levels, but not in acquired somatic gene mutations.
- Published
- 2022
22. A Literature Review on Interactions Between Stakeholders Through Accessibility Indicators Under Mobility as a Service Context
- Author
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Hoang Duy Pham, Truong Van Nguyen, and Tetsuo Shimizu
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050210 logistics & transportation ,Service (systems architecture) ,Process management ,Computer science ,General Neuroscience ,Applied Mathematics ,05 social sciences ,Aerospace Engineering ,Context (language use) ,010501 environmental sciences ,Service provider ,01 natural sciences ,Computer Science Applications ,Systematic review ,Conceptual framework ,Control and Systems Engineering ,0502 economics and business ,Automotive Engineering ,Dynamic pricing ,Software ,Mobility as a service ,0105 earth and related environmental sciences ,Information Systems - Abstract
This study aims to explore accessibility indicators influencing the interactions between users, transport service providers (TSPs), and a platform operator, generating a conceptual framework for modeling these interactions under Mobility as a Service context. A systematic literature review was conducted to identify all studies focusing on indicators and modeling the interactions. There are limitations in integrating psychological indicators and dynamic pricing into the existing models. Moreover, there are gaps in considering monthly service packages, the efficiency of transport systems, and the perspectives of the TSPs for modeling the demand–supply interactions. The study ends with conclusions, discussions, and directions for further studies.
- Published
- 2021
23. Genomic analysis between idiopathic pulmonary fibrosis and associated lung cancer using laser‐assisted microdissection: A case report
- Author
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Kenji Mizumura, Tetsuo Shimizu, Shinobu Masuda, Yuko Iida, Yoko Nakanishi, Yoshiko Nakagawa, Yasuhiro Gon, Yusuke Kurosawa, and Noriaki Takahashi
- Subjects
0301 basic medicine ,Pulmonary and Respiratory Medicine ,Male ,Pathology ,medicine.medical_specialty ,Lung Neoplasms ,Somatic cell ,laser‐assisted microdissection ,next‐generation sequencing ,Case Report ,Case Reports ,medicine.disease_cause ,03 medical and health sciences ,Idiopathic pulmonary fibrosis ,0302 clinical medicine ,Germline mutation ,medicine ,Humans ,somatic mutation ,Lung cancer ,Microdissection ,RC254-282 ,Aged ,Mutation ,Lung ,business.industry ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,General Medicine ,Genomics ,respiratory system ,medicine.disease ,idiopathic pulmonary fibrosis ,humanities ,respiratory tract diseases ,lung cancer ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Honeycomb lung ,business - Abstract
Lung cancer (LC) is the most fatal complication of idiopathic pulmonary fibrosis (IPF). However, the molecular pathogenesis of the development of LC from IPF is still unclear. Here, we report a case of IPF‐associated LC for which we investigated the genetic alterations between IPF and LC. We extracted formalin‐fixed paraffin‐embedded DNA from each part of the surgical lung tissue using a laser‐assisted microdissection technique. The mutations in each part were detected by next‐generation sequencing (NGS) using 72 lung cancer‐related mutation panels. Five mutations were found in IPF and four in LC. Almost all somatic mutations did not overlap between the IPF and LC regions. These findings suggest that IPF‐associated LC may not be a result of the accumulation of somatic mutations in the regenerated epithelium of the honeycomb lung in the IPF region., Here, we report for the first time somatic mutations between the epithelium of IPF and LC sites detected by NGS using a laser‐assisted microdissection technique. Almost all somatic mutations did not overlap between the IPF and LC regions.
- Published
- 2021
24. Parallel disease activity of Behçet’s disease with renal and entero involvements: a case report
- Author
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Kiyoshi Sakai, Yoshihiro Kusunoki, Shota Furukawa, Hirohiko Kitakawa, Kanako Watanabe-Kusunoki, Tetsuo Shimizu, Yotaro Oki, Shin Furukawa, and Masaru Kato
- Subjects
medicine.medical_specialty ,Abdominal pain ,Renal involvement ,Colon ,Remission, Spontaneous ,030232 urology & nephrology ,Case Report ,Spontaneous remission ,Behcet's disease ,Kidney ,lcsh:RC870-923 ,Gastroenterology ,Parallel disease activity ,03 medical and health sciences ,Behçet’s disease ,0302 clinical medicine ,Melena ,Internal medicine ,medicine ,Humans ,Minimal change disease ,Antibacterial agent ,Enterocolitis ,medicine.diagnostic_test ,business.industry ,Behcet Syndrome ,Nephrosis, Lipoid ,Middle Aged ,medicine.disease ,lcsh:Diseases of the genitourinary system. Urology ,Proteinuria ,Nephrology ,Female ,Renal biopsy ,medicine.symptom ,business ,Nephrotic syndrome ,030215 immunology - Abstract
Background Behçet’s disease (BD) is a systemic inflammatory vasculitis with both autoimmune and autoinflammatory properties. Renal involvement in BD and its spontaneous remission have been rare. We herein describe a case of parallel disease activity of BD with entero and renal involvements, followed by a spontaneous remission without corticosteroid treatment. Case presentation A 54-year-old woman who had a 4-year history of BD, maintained with colchicine treatment, suffered abdominal pain, hemorrhagic stool and diarrhea. Physical examination revealed strong tenderness in the entire abdomen. Laboratory test results showed increased levels of inflammation, and a computed tomography scan revealed edematous intestinal wall thickening with ascites. Blood and stool cultures showed no specific findings. Since she was suspected to have developed panperitonitis with acute enterocolitis, she started treatment with an antibacterial agent under bowel rest. Her abdominal symptoms gradually improved, while diarrhea and high levels of inflammatory reaction persisted. Colonoscopy revealed discontinuous abnormal mucosal vascular patterns and ulcerations in the whole colon except for the rectum, and histological analyses of the intestine demonstrated transmural mucosal infiltration of inflammatory cells without epithelioid granuloma or amyloid deposition. Based on these findings, she was diagnosed with entero BD. Meanwhile, pedal edema appeared during her hospitalization. Urinalysis results were consistent with nephrotic syndrome, thus a renal biopsy was performed. Light microscopy showed no obvious glomerular and interstitial abnormalities, whereas electron microscopy revealed foot process effacement without immune complex deposition or fibrillary structure, compatible with minimal change disease (MCD). Only with conservative therapy, her proteinuria decreased, followed by a complete remission in 3 weeks from the onset of edema. The coincident episode of MCD was finally diagnosed as renal BD that paralleled disease activity to entero BD. She started adalimumab administration, resulting in the further improvement of diarrhea and inflammatory levels. Conclusions This is the first report to demonstrate MCD as renal involvement of BD along with the disease activity of entero BD.
- Published
- 2021
25. False‐positive cases in multiple sleep latency test by accumulated sleep debt
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Tetsuo Shimizu, Keisuke Hosokawa, Takashi Kanbayashi, Hideaki Kondo, Tsuguo Nishijima, Shigeru Sakurai, T Ono, Susumu Takahashi, Tetsuya Kizawa, and GoEun Han
- Subjects
Male ,Multiple Sleep Latency Test ,medicine.medical_specialty ,Polysomnography ,Disorders of Excessive Somnolence ,Audiology ,Sleep debt ,Humans ,Medicine ,Pharmacology (medical) ,Latency (engineering) ,Pharmacology ,Short sleep ,medicine.diagnostic_test ,business.industry ,Original Articles ,Sleep Latency ,Sleep time ,Psychiatry and Mental health ,Clinical Psychology ,Nocturnal sleep ,Sleep Deprivation ,Original Article ,Sleep (system call) ,Sleep ,business - Abstract
Purpose Multiple sleep latency test (MSLT) is performed as objective assessment of sleepiness, on the following day after polysomnography (PSG). In most clinics, patients are required to stay for 2 days. However, if patients have chronic sleep debt before the examination, even if they get adequate nocturnal sleep during the initial PSG, their sleep debt would not be fully resolved, affecting MSLT results. This may lead to improper administration of psycho‐stimulant medication. To clarify the sleep debt for the patients who showed short sleep latencies, we compared the mean sleep latencies of MSLTs. Methods Twelve hypersomnolent males, who underwent MSLTs (1st MSLT with 1 night and 2nd MSLT with more than 3 nights), were enrolled. We selected these cases based on the longer total sleep time on PSG night compared to the mean total sleep time on pre‐examination sleep logs and shortened sleep latencies on PSG. To evaluate the effect of the sleep debt for the patients who showed short sleep latencies, we extended their hospitalization or re‐hospitalized them. Results The mean sleep latency of 1st MSLT was 5.8 minutes and that of 2nd was 13.9 minutes (P, (a) Mean sleep latency following the nights in the hospital: the plots show mean sleep latencies of multiple sleep latency test (MSLT) in each patient following nights in the hospital. The number of patients was 12, and MSLT was conducted twice per patient. (b) Comparison of mean sleep latency obtained from MSLT between 1st MSLTs and 2nd MSLTs: The longer the hospitalized period, the patients showed longer mean sleep latencies.
- Published
- 2021
26. Evidence of Hole Self-Doping due to Excess Oxygen Addition in Polycrystal LaMnO3
- Author
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Tetsuo Shimizu, H. Kobori, Atsushi Yamasaki, Megumi Sogabe, T. Taniguchi, and Akinori Hoshino
- Subjects
0303 health sciences ,Materials science ,Condensed matter physics ,Mechanical Engineering ,Doping ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,03 medical and health sciences ,Mechanics of Materials ,Electrical resistivity and conductivity ,General Materials Science ,Excess oxygen ,0210 nano-technology ,030304 developmental biology - Abstract
We have presented the evidence of hole self-doping due to excess oxygen addition in polycrystal LaMnO3(LMO). The polycrystal LMO samples were prepared by use of a solid-state reaction method. Powder mixtures with a molar ratio of 1:1 between La2O3and Mn2O3were pre-annealed at 1100oC for 18 hours in the atmospheres of oxygen gas, helium gas and vacuum. By this heat treatment, non-crystalline LMO samples were produced. After that, the non-crystalline LMO samples were grinded and were pressed into pellets at the pressure of 3t/cm3. The pellets were annealed at 1100oC and 1300oC for 18 hours in the same atmospheres as the pre-annealing. Through these processes, polycrystal LMO samples were finally produced. To investigate crystallographic structure of the LMO samples, X-ray diffraction (XRD) measurements were performed by use of Cu-K radiation. From the experimental results of XRD measurements, we have found that all LMO samples have perovskite structure and are polycrystals. In addition, to investigate surface structure of the LMO samples, scanning electron microscope (SEM) measurements were carried out. Electrical resistivities (ERs) of the polycrystal LMO samples were measured as a function of temperature (4K-300K). The ERs of polycrystal LMO samples produced in an oxygen gas atmosphere show lower values as compared with other LMO ones in He gas and vacuum atmospheres. Especially, the temperature dependence of the ER for a polycrystal LMO sample produced at the annealing temperature of 1100oC in an oxygen atmosphere shows a metallic behavior. Thus, we have considered that this LMO sample has the largest hole self-doping concentration in all LMO ones.
- Published
- 2021
27. Detection of programmed cell death-ligand 1 using 22C3 antibody in patients with unresectable stage III non-small cell lung cancer receiving chemoradiotherapy
- Author
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Hiroaki Kodama, Tateaki Naito, Hirotsugu Kenmotsu, Hideyuki Harada, Shota Omori, Kazushige Wakuda, Toshiaki Takahashi, Michitoshi Yabe, Haruki Kobayashi, Koji Muramatsu, Tetsuo Shimizu, Akira Ono, Nobuaki Mamesaya, Taichi Miyawaki, Eriko Miyawaki, Yasuhiro Gon, Naoya Nishioka, Takashi Sugino, and Haruyasu Murakami
- Subjects
0301 basic medicine ,Oncology ,medicine.medical_specialty ,Lung Neoplasms ,Durvalumab ,Population ,Apoptosis ,Ligands ,B7-H1 Antigen ,03 medical and health sciences ,0302 clinical medicine ,Surgical oncology ,Carcinoma, Non-Small-Cell Lung ,Internal medicine ,Biomarkers, Tumor ,medicine ,Humans ,Stage (cooking) ,education ,Retrospective Studies ,education.field_of_study ,biology ,business.industry ,Chemoradiotherapy ,Hematology ,General Medicine ,030104 developmental biology ,030220 oncology & carcinogenesis ,biology.protein ,Immunohistochemistry ,Biomarker (medicine) ,Surgery ,Antibody ,business - Abstract
The expression of programmed cell death-ligand 1 (PD-L1) is a biomarker for administering immune check point inhibitors in patients with advanced stage non-small cell lung cancer. Although the consolidation therapy of durvalumab after definitive chemoradiotherapy has become the new standard of care for patients with unresectable stage III non-small cell lung cancer, the prevalence and prognostic role of PD-L1 expression in this population remain unclear. We retrospectively reviewed data from patients with unresectable stage III non-small cell lung cancer who received definitive chemoradiotherapy at our institution between 2012 and 2017. Levels of PD-L1 were assessed using 22C3 antibody, and associations of progression-free and overall survival rates with PD-L1 statuses at a tumor proportion score cutoff of 1% were analyzed. Among the 104 patients enrolled, PD-L1 statuses were as follows: tumor proportion score
- Published
- 2021
28. Direct Electron Transfer Between Single-Walled Carbon Nanotube and Fructose Dehydrogenase
- Author
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Takahide Kishimoto, Katsumi Tsuji, Hitoshi Muguruma, Tetsuo Shimizu, Toya Fukuda, Takeshi Tanaka, Atsunori Hiratsuka, and Hisanori Iwasa
- Subjects
Aqueous solution ,Sucrose ,Chemistry ,Fructose ,Dehydrogenase ,Carbon nanotube ,Computer Science Applications ,law.invention ,Electron transfer ,chemistry.chemical_compound ,Invertase ,law ,Electrical and Electronic Engineering ,Cyclic voltammetry ,Nuclear chemistry - Abstract
In this paper, we report the direct electron transfer (DET) reaction between debundled single-walled carbon nanotubes (SWCNTs) and the enzyme flavin adenine dinucleotide (FAD)-dependent fructose dehydrogenase (FDH). An anionic surfactant, sodium cholate (SC), was used to debundle the SWCNTs and disperse them in an aqueous solution, and the experimental conditions were optimized. The DET electrode, FDH/SWCNT-SC, was fabricated by the layer-by-layer drop-casting technique. Cyclic voltammetry experiments were conducted, and the experimental results revealed the presence of a high level of fructose concentration-dependent current (FDC). In the control experiment, FDC was not observed with either multi-walled carbon nanotubes (MWCNTs) or graphene flakes. The reported dimension of the FDH molecule is ∼7 nm, which is larger than the diameter of an individual SWCNT (1 nm) but smaller than the diameter of an individual MWCNT (10 nm) and the dimensions of a graphene flake (∼100 nm square). Only individual SWCNTs can reside in close proximity (within the distance for DET) of the cofactors FAD and heme c, both of which remain deeply embedded within the protein shell. The FDH/SWCNT-SC electrode had a sensitivity of 27 μA mM-1 cm-2, a linear dynamic range of 1.4–18.5 mM, and a detection limit of 2.1 μM. The electrode, combined with the enzyme invertase (IVT), can detect the total concentration of fructose and sucrose in samples (using the IVT/FDH/SWCNT-SC electrode). Therefore, fructose and sucrose can be separately quantified when both FDH/SWCNT-SC and IVT/FDH/SWCNT-SC electrodes are used. The amounts of fructose and sucrose in real food samples (100% fruit juice in the present case) determined using these electrodes agreed well with the amounts obtained from high-performance liquid chromatography (HPLC) experiments.
- Published
- 2021
29. The anticataplectic and REM suppression effect of milnacipran, an SNRI, on human and canine narcolepsy
- Author
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Hideaki Kondo, Takashi Kanbayashi, Yuichi Inoue, Seiji Nishino, Tetsuo Shimizu, Goeun Han, Yoshihiko Kaneko, and Nobuhiro Fujiki
- Subjects
Clomipramine ,Cataplexy ,Side effect ,Physiology ,business.industry ,medicine.drug_class ,Tricyclic antidepressant ,medicine.disease ,03 medical and health sciences ,Orthostatic vital signs ,0302 clinical medicine ,Neuropsychology and Physiological Psychology ,Neurology ,Physiology (medical) ,Anesthesia ,Milnacipran ,medicine ,medicine.symptom ,business ,Sleep paralysis ,030217 neurology & neurosurgery ,medicine.drug ,Narcolepsy - Abstract
Cataplexy is a sudden drop of antigravity-muscle tone triggered most often by positive emotional factors, which is one of the major symptoms of narcolepsy. Cataplexy has been treated pharmacologically, most often with tricyclic antidepressants. Even though tricyclic antidepressants are effective in reducing sleep paralysis and hypnagogic hallucinations, they even enhance daytime sleepiness, dizziness, and orthostatic hypotension. We assessed the anticataplectic effect of milnacipran, an SNRI, on human and canine narcolepsy. We also assessed the effect of milnacipran on REM sleep suppression in nocturnal sleep. Ten human patients with narcolepsy–cataplexy who changed medication from clomipramine to milnacipran due to side effects were enrolled. The change in the frequency of cataplexy and side effects before and after drug replacement was investigated. To assess milnacipran’s depressant effect on REM sleep, we performed nocturnal polysomnography examinations twice on each eight healthy adult subjects who were administered with milnacipran or placebo. In the study on canine narcolepsy, four genetically narcoleptic Doberman pinschers were enrolled. The food-elicited cataplexy test was used to assess the anticataplectic effect of milnacipran. Milnacipran significantly reduced cataplexy from 9.3 to 5.5 episodes per month in human patients without much side effects. The percentage of REM sleep significantly decreased (p = 0.042) in the subjects with milnacipran (17.5 ± 1.7%) compared to subjects with placebo (21.5 ± 2.3%). Milnacipran also significantly reduced cataplexy dose-dependently in the study on canine narcolepsy. Milnacipran reduced cataplexy in human patients and REM sleep in healthy human subjects. Our study contributes further to previously reported role of adrenergic uptake inhibition in cataplexy. This compound had less side effect than those of tricyclic antidepressant, clomipramine.
- Published
- 2021
30. Enhanced Exciton–Exciton Collisions in an Ultraflat Monolayer MoSe2 Prepared through Deterministic Flattening
- Author
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Takashi Taniguchi, Shohei Higuchi, Takato Hotta, Keiji Ueno, Mitsuhiro Okada, Kenji Watanabe, Tetsuo Shimizu, Akihiko Ueda, Toshitaka Kubo, and Ryo Kitaura
- Subjects
Condensed Matter::Quantum Gases ,Materials science ,Photoluminescence ,Condensed Matter - Mesoscale and Nanoscale Physics ,Condensed Matter::Other ,Graphene ,Exciton ,General Engineering ,FOS: Physical sciences ,General Physics and Astronomy ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,Molecular physics ,Spectral line ,law.invention ,law ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,Monolayer ,General Materials Science ,Trion ,Excitation ,Biexciton - Abstract
Squeezing bubbles and impurities out of interlayer spaces by applying force through a few-layer graphene capping layer leads to van der Waals heterostructures with the ultraflat structure free from random electrostatic potential arising from charged impurities. Without the graphene capping layer, a squeezing process with an AFM tip induces applied-force-dependent charges of Δn ∼ 2 × 1012 cm-2 μN-1, resulting in the significant intensity of trions in photoluminescence spectra of MoSe2 at low temperature. We found that a hBN/MoSe2/hBN prepared with the "graphene-capping-assisted AFM nano-squeezing method" shows a strong excitonic emission with negligible trion peak, and the residual line width of the exciton peak is only 2.2 meV, which is comparable to the homogeneous limit. Furthermore, in this high-quality sample, we found that the formation of biexciton occurs even at extremely low excitation power (Φph ∼ 2.3 × 1019 cm-2 s-1) due to the enhanced collisions between excitons.
- Published
- 2020
31. Tourism's income distribution in West Papua Province
- Author
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Oscar Tiku, Tetsuo Shimizu, and Djoni Hartono
- Subjects
Marketing ,Social accounting matrix ,Multiplier decomposition ,Sociology and Political Science ,Tourism, Leisure and Hospitality Management ,Geography, Planning and Development ,West Papua ,Income distribution ,Structural path analysis ,GV1-1860 ,Tourism ,Recreation. Leisure - Abstract
Pioneering the construction and application of social accounting matrix (SAM) framework in West Papua Province, Indonesia in 2018, this research aims to examine tourism-induced distribution effects on various socioeconomic groups by estimating SAM multiplier and its decomposition as well elaborating tourism influences through structural path analysis. Tourism brought significant impact on the economy with utmost overall contribution on capital factor and within decomposed cross multiplier effect. Nevertheless, impact on households decreases following a decrease in the level of household income. Accommodation and food services contributed on agricultural workers' income and employment. The latter has exceptional influence on the lowest-income rural household segment transmitted through fisheries, agricultural worker, and capital factor, that is strategic to improve livelihood and reducing regional poverty.
- Published
- 2022
32. Magneto-Transport Properties in LaMnO3 Thin Films on a-SiO2 Substrates Produced by Metal Organic Decomposition Method
- Author
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Thoru Kitamura, Tetsuo Shimizu, H. Kobori, T. Taniguchi, and Atsushi Yamasaki
- Subjects
010302 applied physics ,Materials science ,Mechanical Engineering ,02 engineering and technology ,021001 nanoscience & nanotechnology ,01 natural sciences ,Metal ,Chemical engineering ,Mechanics of Materials ,visual_art ,0103 physical sciences ,visual_art.visual_art_medium ,Decomposition method (queueing theory) ,General Materials Science ,Thin film ,0210 nano-technology - Abstract
We have studied the magneto-transport properties in LMO thin films on a-SiO2 substrates produced by the metal organic decomposition (MOD) method. LMO thin films have been prepared by the MOD method in the 100 % O2 gas atmosphere on different heat treatment conditions. Although LMO single crystal is an antiferromagnetic insulator, LMO thin films we have produced in the 100 % O2 gas atmosphere by use of the MOD method shows the ferromagnetic metal properties for suitable heat treatment conditions. We consider that the excess of O2- ions in LMO thin films produced in the 100 % O2 gas atmosphere induces the strong hole self-doping into those and changes to ferromagnetic metal. The quantity of excess O2- ions in LMO is sensitive to the heat treatment conditions of the LMO production, especially the temperature, time and atmosphere gas. We have obtained the coercive forces from the magnetic field dependence of magnetoresistance. Based on the temperature dependence of the coercive forces, we have estimated the Curie temperature of LMO thin films.
- Published
- 2020
33. Quantifying the spreading resistance of an anisotropic thin film conductor
- Author
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Nan Ye, Kazuhiko Seki, Tetsuo Shimizu, and Toshitaka Kubo
- Subjects
Materials science ,Spreading resistance profiling ,lcsh:Medicine ,02 engineering and technology ,Conductivity ,01 natural sciences ,Article ,Electrical resistivity and conductivity ,0103 physical sciences ,Thin film ,Composite material ,Anisotropy ,lcsh:Science ,Electrical conductor ,010302 applied physics ,Multidisciplinary ,Contact resistance ,Isotropy ,lcsh:R ,021001 nanoscience & nanotechnology ,Electrical and electronic engineering ,Applied physics ,Nanoscale devices ,lcsh:Q ,Graphene ,0210 nano-technology - Abstract
Recently, highly anisotropic conductors, such as multilayer graphene, have been attracting much attention. The local resistivity can be determined by measuring the contact resistance; however, the theoretical expressions of contact resistance have been developed for isotropic slabs but have not been well developed for highly anisotropic film conductors. We obtain theoretical expressions of the spreading resistance below the circular contact for a highly anisotropic film on a bulk slab. The film spreading resistance of isotropic conductors deviates from the bulk spreading resistance when the film thickness is smaller than the contact radius. Nevertheless, the spreading resistance of anisotropic conducting films can be approximated by that of the bulk slabs even when the film thickness is smaller than the contact radius if the in-plane electrical conductivity is larger than the out-of-plane electrical conductivity. Owing to the high in-plane conductivity, the spreading resistance of anisotropic bulk conductors can be lowered from that predicted by the Holm’s equation obtained using the out-of-plane conductivity and the contact radius. We show that these characteristics are beneficial to use the highly anisotropic film as a cover layer when the in-plane conductivity of the film is high and the conductivity of the base slab is low.
- Published
- 2020
34. Analyzing dynamic change of tourism destination image under the occurrence of a natural disaster: evidence from Japan
- Author
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Lingling Wu and Tetsuo Shimizu
- Subjects
Geography ,Tourism, Leisure and Hospitality Management ,Geography, Planning and Development ,Regional science ,Natural disaster ,Destination image ,Tourism - Abstract
This study attempts to investigate the dynamic impact of a natural disaster on tourism destination image. The data analysis through a case study of Japan confirmed three hypotheses. Firstly, the re...
- Published
- 2020
35. The Diagnosis of Exogenous Lipoid Pneumonia Caused by the Silent Aspiration of Vegetable Oil Using a Lipidomic Analysis
- Author
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Yoshihiro Sato, Yasuhiro Gon, Noriaki Takahashi, Kentaro Hayashi, Shuichiro Maruoka, Tetsuo Shimizu, Yuko Iida, and Yoshiko Nakagawa
- Subjects
Adult ,medicine.medical_specialty ,Linoleic acid ,Case Report ,030204 cardiovascular system & hematology ,Pneumonia, Aspiration ,Gastroenterology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,lipidomic analysis ,Internal medicine ,Internal Medicine ,Humans ,Plant Oils ,Medicine ,bronchoalveolar lavage fluid ,medicine.diagnostic_test ,business.industry ,exogenous lipoid pneumonia ,General Medicine ,medicine.disease ,Pneumonia, Lipid ,respiratory tract diseases ,Oleic acid ,Pneumonia ,Treatment Outcome ,Vegetable oil ,Bronchoalveolar lavage ,vegetable oil ,chemistry ,Lipidomics ,Female ,030211 gastroenterology & hepatology ,Exogenous lipoid pneumonia ,business ,Silent aspiration - Abstract
We herein report a case of refractory exogenous lipoid pneumonia that was successfully attributed to vegetable oil through a lipidomic analysis of bronchoalveolar lavage fluid (BALF). As a 25-year-old woman diagnosed with lipoid pneumonia experienced repeated exacerbations and improvement, we performed a BALF lipidomic analysis. The major lipid components were oleic acid, linoleic acid, and α-linolenic acid, which are constituents of vegetable oil. She stopped consuming any vegetable oil and has since experienced no instances of lipoid pneumonia relapse. A lipidomic analysis appears to be useful for identifying causative lipids, since patients with lipoid pneumonia are sometimes unaware of aspiration episodes.
- Published
- 2020
36. Tourism, accommodation, and the regional economy in Indonesia’s West Papua
- Author
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Oscar Tiku and Tetsuo Shimizu
- Subjects
Sociology and Political Science ,Economy ,business.industry ,Political Science and International Relations ,Geography, Planning and Development ,Business ,Accommodation ,Tourism - Abstract
This study deals with the contribution of visitor expenditure on West Papua’s regional economy. It accomplishes three objectives: (1) to estimate the economic contribution of domestic and inbound visitor expenditure; (2) to measure the economic contribution of tourist spending at various accommodation classes; and (3) to describe the use of local commodities and labor in the regional accommodation industry. To accomplish the first and second objectives, an input-output multiplier analysis was employed. As for the third objective, interviews were conducted with 35 representatives from regional accommodation establishments. Tourism is found to contribute greatly to the regional economy, as shown from the higher overall output multiplier for tourist expenditure as compared to the regional output multiplier. The output multiplier for inbound tourist expenditure is higher than the domestic tourist. Three-star accommodations are found to be the biggest contributor with outstanding inter-sectoral impact on fisheries; food, beverage, and tobacco manufacture; and agriculture. The qualitative analysis suggests the existence of a large leakage (±90%), mainly in produce and chemicals used in daily operations. Fisheries and wood furniture are the exception. Overall, the accommodation sector absorbs a considerable extent of local labor (73%), 23% of which are Indigenous Papuans.
- Published
- 2020
37. Molecular techniques for respiratory diseases: MicroRNA and extracellular vesicles
- Author
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Shuichiro Maruoka, Kenji Mizumura, Tetsuo Shimizu, Yasuhiro Gon, and Mari Hikichi
- Subjects
Pulmonary and Respiratory Medicine ,Disease ,Exosomes ,Bioinformatics ,Exosome ,Pathogenesis ,Extracellular Vesicles ,Pulmonary Disease, Chronic Obstructive ,03 medical and health sciences ,0302 clinical medicine ,microRNA ,Extracellular ,Humans ,Medicine ,030212 general & internal medicine ,Respiratory system ,business.industry ,Cancer ,medicine.disease ,Asthma ,Microvesicles ,MicroRNAs ,030228 respiratory system ,business ,Ultracentrifugation ,Biomarkers - Abstract
miRNA are a class of evolutionarily conserved non-coding 19- to 22-nt regulatory RNA. They affect various cellular functions through modulating the transcriptional and post-transcriptional levels of their target mRNA by changing the stability of protein-coding transcripts or attenuating protein translation. miRNA were discovered in the early 1990s, and they have been the focus of new research in both basic and clinical medical sciences. Today, it has become clear that specific miRNA are linked to the pathogenesis of respiratory diseases, as well as cancer and cardiovascular disease. In addition, EV, including exosomes, which are small membrane-bound vesicles secreted by cells, were found to contain various functional miRNA that can be used for diagnostic and therapeutic purposes. As body fluids, such as blood and respiratory secretions, are major miRNA sources in the body, EV carrying extracellular miRNA are considered potentially useful for the diagnosis and assessment of pathological conditions, as well as the treatment of respiratory or other diseases. Although research in the field of lung cancer is actively progressing, studies in other respiratory fields have emerged recently as well. In this review, we provide an update in the topics of miRNA and EV focused on airway inflammatory diseases, such as asthma and COPD, and explore their potential for clinical applications on respiratory diseases.
- Published
- 2019
38. The whole blood transcriptional regulation landscape in 465 COVID-19 infected samples from Japan COVID-19 Task Force
- Author
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Qingbo S. Wang, Ryuya Edahiro, Ho Namkoong, Takanori Hasegawa, Yuya Shirai, Kyuto Sonehara, Hiromu Tanaka, Ho Lee, Ryunosuke Saiki, Takayoshi Hyugaji, Eigo Shimizu, Kotoe Katayama, Masahiro Kanai, Tatsuhiko Naito, Noah Sasa, Kenichi Yamamoto, Yasuhiro Kato, Takayoshi Morita, Kazuhisa Takahashi, Norihiro Harada, Toshio Naito, Makoto Hiki, Yasushi Matsushita, Haruhi Takagi, Masako Ichikawa, Ai Nakamura, Sonoko Harada, Yuuki Sandhu, Hiroki Kabata, Katsunori Masaki, Hirofumi Kamata, Shinnosuke Ikemura, Shotaro Chubachi, Satoshi Okamori, Hideki Terai, Atsuho Morita, Takanori Asakura, Junichi Sasaki, Hiroshi Morisaki, Yoshifumi Uwamino, Kosaku Nanki, Sho Uchida, Shunsuke Uno, Tomoyasu Nishimura, Takashri Ishiguro, Taisuke Isono, Shun Shibata, Yuma Matsui, Chiaki Hosoda, Kenji Takano, Takashi Nishida, Yoichi Kobayashi, Yotaro Takaku, Noboru Takayanagi, Soichiro Ueda, Ai Tada, Masayoshi Miyawaki, Masaomi Yamamoto, Eriko Yoshida, Reina Hayashi, Tomoki Nagasaka, Sawako Arai, Yutaro Kaneko, Kana Sasaki, Etsuko Tagaya, Masatoshi Kawana, Ken Arimura, Kunihiko Takahashi, Tatsuhiko Anzai, Satoshi Ito, Akifumi Endo, Yuji Uchimura, Yasunari Miyazaki, Takayuki Honda, Tomoya Tateishi, Shuji Tohda, Naoya Ichimura, Kazunari Sonobe, Chihiro Tani Sassa, Jun Nakajima, Yasushi Nakano, Yukiko Nakajima, Ryusuke Anan, Ryosuke Arai, Yuko Kurihara, Yuko Harada, Kazumi Nishio, Tetsuya Ueda, Masanori Azuma, Ryuichi Saito, Toshikatsu Sado, Yoshimune Miyazaki, Ryuichi Sato, Yuki Haruta, Tadao Nagasaki, Yoshinori Yasui, Yoshinori Hasegawa, Yoshikazu Mutoh, Tomoki Kimura, Tomonori Sato, Reoto Takei, Satoshi Hagimoto, Yoichiro Noguchi, Yasuhiko Yamano, Hajime Sasano, Sho Ota, Yasushi Nakamori, Kazuhisa Yoshiya, Fukuki Saito, Tomoyuki Yoshihara, Daiki Wada, Hiromu Iwamura, Syuji Kanayama, Shuhei Maruyama, Takashi Yoshiyama, Ken Ohta, Hiroyuki Kokuto, Hideo Ogata, Yoshiaki Tanaka, Kenichi Arakawa, Masafumi Shimoda, Takeshi Osawa, Hiroki Tateno, Isano Hase, Shuichi Yoshida, Shoji Suzuki, Miki Kawada, Hirohisa Horinouchi, Fumitake Saito, Keiko Mitamura, Masao Hagihara, Junichi Ochi, Tomoyuki Uchida, Rie Baba, Daisuke Arai, Takayuki Ogura, Hidenori Takahashi, Shigehiro Hagiwara, Genta Nagao, Shunichiro Konishi, Ichiro Nakachi, Koji Murakami, Mitsuhiro Yamada, Hisatoshi Sugiura, Hirohito Sano, Shuichiro Matsumoto, Nozomu Kimura, Yoshinao Ono, Hiroaki Baba, Yusuke Suzuki, Sohei Nakayama, Keita Masuzawa, Shinichi Namba, Takayuki Shiroyama, Yoshimi Noda, Takayuki Niitsu, Yuichi Adachi, Takatoshi Enomoto, Saori Amiya, Reina Hara, Yuta Yamaguchi, Teruaki Murakami, Tomoki Kuge, Kinnosuke Matsumoto, Yuji Yamamoto, Makoto Yamamoto, Midori Yoneda, Kazunori Tomono, Kazuto Kato, Haruhiko Hirata, Yoshito Takeda, Hidefumi Koh, Tadashi Manabe, Yohei Funatsu, Fumimaro Ito, Takahiro Fukui, Keisuke Shinozuka, Sumiko Kohashi, Masatoshi Miyazaki, Tomohisa Shoko, Mitsuaki Kojima, Tomohiro Adachi, Motonao Ishikawa, Kenichiro Takahashi, Takashi Inoue, Toshiyuki Hirano, Keigo Kobayashi, Hatsuyo Takaoka, Kazuyoshi Watanabe, Naoki Miyazawa, Yasuhiro Kimura, Reiko Sado, Hideyasu Sugimoto, Akane Kamiya, Naota Kuwahara, Akiko Fujiwara, Tomohiro Matsunaga, Yoko Sato, Takenori Okada, Yoshihiro Hirai, Hidetoshi Kawashima, Atsuya Narita, Kazuki Niwa, Yoshiyuki Sekikawa, Koichi Nishi, Masaru Nishitsuji, Mayuko Tani, Junya Suzuki, Hiroki Nakatsumi, Takashi Ogura, Hideya Kitamura, Eri Hagiwara, Kota Murohashi, Hiroko Okabayashi, Takao Mochimaru, Shigenari Nukaga, Ryosuke Satomi, Yoshitaka Oyamada, Nobuaki Mori, Tomoya Baba, Yasutaka Fukui, Mitsuru Odate, Shuko Mashimo, Yasushi Makino, Kazuma Yagi, Mizuha Hashiguchi, Junko Kagyo, Tetsuya Shiomi, Satoshi Fuke, Hiroshi Saito, Tomoya Tsuchida, Shigeki Fujitani, Mumon Takita, Daiki Morikawa, Toru Yoshida, Takehiro Izumo, Minoru Inomata, Naoyuki Kuse, Nobuyasu Awano, Mari Tone, Akihiro Ito, Yoshihiko Nakamura, Kota Hoshino, Junichi Maruyama, Hiroyasu Ishikura, Tohru Takata, Toshio Odani, Masaru Amishima, Takeshi Hattori, Yasuo Shichinohe, Takashi Kagaya, Toshiyuki Kita, Kazuhide Ohta, Satoru Sakagami, Kiyoshi Koshida, Kentaro Hayashi, Tetsuo Shimizu, Yutaka Kozu, Hisato Hiranuma, Yasuhiro Gon, Namiki Izumi, Kaoru Nagata, Ken Ueda, Reiko Taki, Satoko Hanada, Kodai Kawamura, Kazuya Ichikado, Kenta Nishiyama, Hiroyuki Muranaka, Kazunori Nakamura, Naozumi Hashimoto, Keiko Wakahara, Sakamoto Koji, Norihito Omote, Akira Ando, Nobuhiro Kodama, Yasunari Kaneyama, Shunsuke Maeda, Takashige Kuraki, Takemasa Matsumoto, Koutaro Yokote, Taka-Aki Nakada, Ryuzo Abe, Taku Oshima, Tadanaga Shimada, Masahiro Harada, Takeshi Takahashi, Hiroshi Ono, Toshihiro Sakurai, Takayuki Shibusawa, Yoshifumi Kimizuka, Akihiko Kawana, Tomoya Sano, Chie Watanabe, Ryohei Suematsu, Hisako Sageshima, Ayumi Yoshifuji, Kazuto Ito, Saeko Takahashi, Kota Ishioka, Morio Nakamura, Makoto Masuda, Aya Wakabayashi, Hiroki Watanabe, Suguru Ueda, Masanori Nishikawa, Yusuke Chihara, Mayumi Takeuchi, Keisuke Onoi, Jun Shinozuka, Atsushi Sueyoshi, Yoji Nagasaki, Masaki Okamoto, Sayoko Ishihara, Masatoshi Shimo, Yoshihisa Tokunaga, Yu Kusaka, Takehiko Ohba, Susumu Isogai, Aki Ogawa, Takuya Inoue, Satoru Fukuyama, Yoshihiro Eriguchi, Akiko Yonekawa, Keiko Kan-o, Koichiro Matsumoto, Kensuke Kanaoka, Shoichi Ihara, Kiyoshi Komuta, Yoshiaki Inoue, Shigeru Chiba, Kunihiro Yamagata, Yuji Hiramatsu, Hirayasu Kai, Koichiro Asano, Tsuyoshi Oguma, Yoko Ito, Satoru Hashimoto, Masaki Yamasaki, Yu Kasamatsu, Yuko Komase, Naoya Hida, Takahiro Tsuburai, Baku Oyama, Minoru Takada, Hidenori Kanda, Yuichiro Kitagawa, Tetsuya Fukuta, Takahito Miyake, Shozo Yoshida, Shinji Ogura, Shinji Abe, Yuta Kono, Yuki Togashi, Hiroyuki Takoi, Ryota Kikuchi, Shinichi Ogawa, Tomouki Ogata, Shoichiro Ishihara, Arihiko Kanehiro, Shinji Ozaki, Yasuko Fuchimoto, Sae Wada, Nobukazu Fujimoto, Kei Nishiyama, Mariko Terashima, Satoru Beppu, Kosuke Yoshida, Osamu Narumoto, Hideaki Nagai, Nobuharu Ooshima, Mitsuru Motegi, Akira Umeda, Kazuya Miyagawa, Hisato Shimada, Mayu Endo, Yoshiyuki Ohira, Masafumi Watanabe, Sumito Inoue, Akira Igarashi, Masamichi Sato, Hironori Sagara, Akihiko Tanaka, Shin Ohta, Tomoyuki Kimura, Yoko Shibata, Yoshinori Tanino, Takefumi Nikaido, Hiroyuki Minemura, Yuki Sato, Yuichiro Yamada, Takuya Hashino, Masato Shinoki, Hajime Iwagoe, Hiroshi Takahashi, Kazuhiko Fujii, Hiroto Kishi, Masayuki Kanai, Tomonori Imamura, Tatsuya Yamashita, Masakiyo Yatomi, Toshitaka Maeno, Shinichi Hayashi, Mai Takahashi, Mizuki Kuramochi, Isamu Kamimaki, Yoshiteru Tominaga, Tomoo Ishii, Mitsuyoshi Utsugi, Akihiro Ono, Toru Tanaka, Takeru Kashiwada, Kazue Fujita, Yoshinobu Saito, Masahiro Seike, Hiroko Watanabe, Hiroto Matsuse, Norio Kodaka, Chihiro Nakano, Takeshi Oshio, Takatomo Hirouchi, Shohei Makino, Moritoki Egi, Yosuke Omae, Yasuhito Nannya, Takafumi Ueno, Tomomi Takano, Kazuhiko Katayama, Masumi Ai, Atsushi Kumanogoh, Toshiro Sato, Naoki Hasegawa, Katsushi Tokunaga, Makoto Ishii, Ryuji Koike, Yuko Kitagawa, Akinori Kimura, Seiya Imoto, Satoru Miyano, Seishi Ogawa, Takanori Kanai, Koichi Fukunaga, and Yukinori Okada
- Subjects
Multidisciplinary ,Membrane Glycoproteins ,Quantitative Trait Loci ,General Physics and Astronomy ,COVID-19 ,General Chemistry ,Polymorphism, Single Nucleotide ,General Biochemistry, Genetics and Molecular Biology ,Japan ,Viral infection ,Humans ,Lectins, C-Type ,Gene expression ,Receptors, Immunologic ,Transcriptomics ,Genome-Wide Association Study - Abstract
Coronavirus disease 2019 (COVID-19) is a recently-emerged infectious disease that has caused millions of deaths, where comprehensive understanding of disease mechanisms is still unestablished. In particular, studies of gene expression dynamics and regulation landscape in COVID-19 infected individuals are limited. Here, we report on a thorough analysis of whole blood RNA-seq data from 465 genotyped samples from the Japan COVID-19 Task Force, including 359 severe and 106 non-severe COVID-19 cases. We discover 1169 putative causal expression quantitative trait loci (eQTLs) including 34 possible colocalizations with biobank fine-mapping results of hematopoietic traits in a Japanese population, 1549 putative causal splice QTLs (sQTLs; e.g. two independent sQTLs at TOR1AIP1), as well as biologically interpretable trans-eQTL examples (e.g., REST and STING1), all fine-mapped at single variant resolution. We perform differential gene expression analysis to elucidate 198 genes with increased expression in severe COVID-19 cases and enriched for innate immune-related functions. Finally, we evaluate the limited but non-zero effect of COVID-19 phenotype on eQTL discovery, and highlight the presence of COVID-19 severity-interaction eQTLs (ieQTLs; e.g., CLEC4C and MYBL2). Our study provides a comprehensive catalog of whole blood regulatory variants in Japanese, as well as a reference for transcriptional landscapes in response to COVID-19 infection., 「コロナ制圧タスクフォース」COVID-19患者由来の血液細胞における遺伝子発現の網羅的解析 --重症度に応じた遺伝子発現の変化には、ヒトゲノム配列の個人差が影響する--. 京都大学プレスリリース. 2022-08-23.
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- 2021
39. Short duration growth of high-quality multi-layered graphene by temperature-controlled rapid heating chemical vapor deposition
- Author
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Atsushi Kitano, Miyuki Tanaka, Toshitaka Kubo, and Tetsuo Shimizu
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Physics and Astronomy (miscellaneous) ,General Engineering ,General Physics and Astronomy - Abstract
Chemical vapor deposition using a rapid thermal annealing (RTA) system at atmospheric pressure with diluted methane gas (0.48 vol%)/Ar enabled the growth of high-quality multi-layered graphene on a Cu substrate at 1000 °C within a short time span. The minimum temperature rise time (including the reduction time) and growth time were 300 and 90 s, respectively. These conditions gave graphene films exhibiting 98.6% substrate coverage. The lateral sizes of the resulting graphene domains ranged from 0.2 to 1.2 μm with an average size of 0.46 μm while the film thicknesses were estimated to range from two to several layers based on the Raman 2D/G peak ratios. The Raman D peak indicative of defects was not detected on the graphene films. Precise control of the growth temperature within the range of 900 °C–1000 °C promoted reduction reactions and improved the quality of the graphene.
- Published
- 2022
40. Long-term outcomes in extensive disease small cell lung cancer patients treated without immune checkpoint inhibitors
- Author
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Naoya Nishioka, Michitoshi Yabe, Shota Omori, Toshiaki Takahashi, Haruki Kobayashi, Nobuaki Mamesaya, Kazushige Wakuda, Yasuhiro Gon, Haruyasu Murakami, Akira Ono, Eriko Miyawaki, Tateaki Naito, Taichi Miyawaki, Tetsuo Shimizu, Hiroaki Kodama, and Hirotsugu Kenmotsu
- Subjects
Male ,Cancer Research ,medicine.medical_specialty ,Lung Neoplasms ,Immune checkpoint inhibitors ,medicine.medical_treatment ,Internal medicine ,medicine ,Long term outcomes ,Humans ,Radiology, Nuclear Medicine and imaging ,Survival rate ,Immune Checkpoint Inhibitors ,Aged ,Retrospective Studies ,Chemotherapy ,Performance status ,Extensive Disease ,business.industry ,Medical record ,General Medicine ,Small Cell Lung Carcinoma ,Progression-Free Survival ,Oncology ,Non small cell ,business - Abstract
Objective Immune checkpoint inhibitors (ICIs) combined with chemotherapy have been approved as first-line treatment for patients with untreated extensive disease-small cell lung cancer (ED-SCLC). However, there are few reports about the long-term outcomes in patients with ED-SCLC treated without ICIs. Thus, we analyzed the long-term outcomes in patients with ED-SCLC. Methods We retrospectively examined the medical records of patients with SCLC who were treated at our hospital between September 2002 and September 2019. The main inclusion criteria were as follows: (i) histological or cytological confirmation of SCLC, (ii) diagnosed with ED-SCLC and (iii) received chemotherapy, not including ICIs, as the first-line treatment. To assess the trends of treatment outcomes, we compared the survival outcomes between 2002–2010 (early) and 2011–2019 (late) groups. Results A total of 314 patients were included in this study. Patient characteristics at the time of first-line treatment were as follows: median age was 69 years; 82% of the patients were male and 70% had a performance status of 0 or 1. The median follow-up time of overall survival (OS) was 7.4 years, and 89% of the patients died. The median progression-free survival and survival time were 4.9 and 12.1 months, respectively. Five-year survival rate was 2%. There was no significant difference in survival between the early and late groups. Conclusions We found that the long-term outcomes in ED-SCLC patients treated without ICIs were poor. Prior to the approval of ICI treatment for ED-SCLC, there was no improvement in the OS for ~20 years.
- Published
- 2021
41. Successful treatment of an elderly patient with an uncommon L861Q epidermal growth factor receptor mutation with low‐dose afatinib: A case report
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Yuko Iida, Tetsuo Shimizu, Yasuhiro Gon, Noriaki Takahashi, Fumio Kumasawa, and Yoshitaka Shintani
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non‐small cell lung cancer ,0301 basic medicine ,Pulmonary and Respiratory Medicine ,Oncology ,medicine.medical_specialty ,Pleural effusion ,Afatinib ,Case Report ,Case Reports ,medicine.disease_cause ,lcsh:RC254-282 ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,L861Q ,Medicine ,Epidermal growth factor receptor ,Adverse effect ,Mutation ,Lung ,biology ,uncommon epidermal growth factor receptor mutation ,business.industry ,Low dose ,General Medicine ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,respiratory tract diseases ,030104 developmental biology ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,low‐dose ,biology.protein ,Adenocarcinoma ,business ,medicine.drug - Abstract
There are limited data on the clinical efficiency of afatinib in non‐small cell lung cancer (NSCLC) patients with uncommon epidermal growth factor receptor (EGFR) mutations. Moreover, the efficacy and safety of afatinib in elderly patients with these mutations has not been established. Here, we describe a case of successful treatment of a patient aged >80 years with lung adenocarcinoma positive for the uncommon EGFR L861Q mutation with low‐dose afatinib. An 83‐year‐old woman presented with cough and dyspnea. A chest computed tomography (CT) scan revealed tumors in the left upper lobe, left pleural effusion, and multiple lung metastases in both lungs. The patient was diagnosed with lung adenocarcinoma with an EGFR L861Q mutation based on cytological findings. The patient received 30 mg/day of afatinib and experienced no severe adverse events. Two weeks later, partial response was observed based on a CT scan. The results of the present case support the effectiveness and safety of low‐dose afatinib in elderly patients with EGFR L861Q mutation‐positive NSCLC.
- Published
- 2019
42. Strategies for Development of Yoga, Ayurveda, and Meditation-based Health Tourism in Nepal: Using SWOT Analysis
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Tetsuo Shimizu and Bishnu Prasad Khanal
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Strategic planning ,Government ,Promotion (rank) ,business.industry ,Service (economics) ,media_common.quotation_subject ,Stakeholder ,Business ,Service provider ,Public relations ,SWOT analysis ,Tourism ,media_common - Abstract
Now health tourism based on yoga, Ayurveda and meditation is growing sector in Nepalese Tourism. Health tourism as one of the most important forms of tourism is not an exception and preparing strategies for its development will not be possible without considering its specific and extraordinary environment. The objective of preparing and is writing this research paper is to formulate suitable strategies for health tourism development in Nepal. This study uses a qualitative approach. We conduct 38 semi structured interviews with related stakeholder’s of health tourism in Nepal, including health service providers, tourism service providers (as enterprise), and government officials. It was carried out in 2017 in Kathmandu, Bhaktapur, Lalitpur, and Pokhara. For strategy formulation, we employ the Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis method to examine the internal and external factors comprehensively, in terms of health tourism development in Nepal. The strategy to the health tourism development will be considered in terms of four relations: strengths-opportunities (S-O), weaknesses-opportunities (W-O), strengths-threats (S-T), weakness-threats (W-T). The results of this study show that the strategy in health tourism development in Nepal, it is necessary to work on policy and regulation, promotion and branding, introducing the quality standards for health products and service as well as to establish the institutional support in order to successful implementation for the strategy of the health tourism development in Nepal.
- Published
- 2019
43. Strong Hole Self-Doping in LaMnO3 Thin Film on a-SiO2 Substrate Produced by Metal Organic Decomposition Method
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Tohru Kitamura, H. Kobori, T. Taniguchi, and Tetsuo Shimizu
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010302 applied physics ,Materials science ,Mechanical Engineering ,Doping ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Metal ,Chemical engineering ,Mechanics of Materials ,visual_art ,0103 physical sciences ,visual_art.visual_art_medium ,Decomposition method (queueing theory) ,General Materials Science ,Thin film ,0210 nano-technology - Abstract
We have studied the strong hole self-doping into LaMnO3(LMO) thin films produced by metal organic decomposition (MOD) method. With different heat treatment conditions, LMO thin films have been prepared by the MOD method in the 100 % O2gas atmosphere. We consider that the excess of O2-ions in LMO thin films induces the strong hole self-doping into LMO ones. The quantity of excess O2-ions in LMO is sensitive to the heat treatment conditions of the LMO production, especially the temperature, time and atmosphere gas. Although LMO single crystal is an antiferromagnetic insulator, LMO thin films we have produced in the 100 % O2gas atmosphere by use of the MOD method shows the properties of ferromagnetic metal.
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- 2019
44. A phase II study of the combination of docetaxel and bevacizumab for previously treated non-small cell lung cancer
- Author
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Yoshiko Nakagawa, Noriaki Takahashi, Yasuhiro Gon, Ichirou Tsujino, Tetsuo Shimizu, and Yasuo Asai
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Male ,Medicine (General) ,Lung Neoplasms ,Clinical Research Reports ,VEGF receptors ,medicine.medical_treatment ,Phases of clinical research ,Docetaxel ,02 engineering and technology ,chemotherapy ,Biochemistry ,0302 clinical medicine ,Carcinoma, Non-Small-Cell Lung ,Antineoplastic Combined Chemotherapy Protocols ,Medicine ,biology ,General Medicine ,Middle Aged ,Prognosis ,021001 nanoscience & nanotechnology ,Survival Rate ,030220 oncology & carcinogenesis ,Female ,Non small cell ,0210 nano-technology ,medicine.drug ,Adult ,Bevacizumab ,Adenocarcinoma of Lung ,bevacizumab ,disease recurrence ,03 medical and health sciences ,R5-920 ,Humans ,Lung cancer ,Aged ,Salvage Therapy ,business.industry ,Growth factor ,Biochemistry (medical) ,Cell Biology ,medicine.disease ,adverse events ,biology.protein ,Cancer research ,advanced non-squamous non-small cell lung cancer ,Carcinoma, Large Cell ,Neoplasm Recurrence, Local ,business ,Previously treated ,Follow-Up Studies - Abstract
Objective The standard therapies for previously treated advanced non-small cell lung cancer (NSCLC) include docetaxel (DOC). Bevacizumab (BV), an antivascular endothelial growth factor (VEGF) antibody, increases the antitumor effect of cytotoxic anticancer agents. A BV-containing combination regimen is recommended as the primary therapy for advanced non-squamous NSCLC. However, the efficacy of DOC + BV is unknown in patients with previously treated advanced NSCLC. We conducted a phase II clinical study of DOC + BV for patients with previously treated advanced non-squamous NSCLC. Methods Twenty-three patients were enrolled in this study from June 2011 through May 2014. Chemotherapy was repeated every 21 days unless there was evidence of disease progression or intolerance to the study treatment. We assessed efficacy and toxicity. Results The median progression-free survival was 30.7 weeks. The response rate was 47.8%. The most common grade ≥3 adverse events were neutropenia (20 patients, 87.0%) and febrile neutropenia (7 patients, 30.4%). Conclusions The combination of DOC and BV often resulted in serious neutropenia, suggesting that this regimen is difficult to tolerate.
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- 2019
45. Increased extracellular vesicle miRNA-466 family in the bronchoalveolar lavage fluid as a precipitating factor of ARDS
- Author
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Kenji Mizumura, Asami Fukuda, Kota Tsuya, Shuichiro Maruoka, Yuko Iida, Sotaro Shikano, Yasuhiro Gon, Shinichi Okamoto, Mari Hikichi, Mai Takahashi, Tetsuo Shimizu, Shu Hashimoto, and Yutaka Kozu
- Subjects
Pulmonary and Respiratory Medicine ,Lipopolysaccharides ,Male ,ARDS ,Inflammasomes ,Interleukin-1beta ,Inflammation ,03 medical and health sciences ,Mice ,0302 clinical medicine ,Immune system ,NLR Family, Pyrin Domain-Containing 3 Protein ,Medicine ,Animals ,030212 general & internal medicine ,Receptor ,miRNA ,lcsh:RC705-779 ,Respiratory Distress Syndrome ,medicine.diagnostic_test ,business.industry ,Macrophages ,Inflammasome ,Extracellular vesicle ,Transfection ,lcsh:Diseases of the respiratory system ,Extracellular vesicles ,medicine.disease ,Precipitating Factors ,NLRP3 inflammasome ,Cell biology ,Mice, Inbred C57BL ,Disease Models, Animal ,MicroRNAs ,Bronchoalveolar lavage ,030228 respiratory system ,medicine.symptom ,business ,Bronchoalveolar Lavage Fluid ,medicine.drug ,Research Article - Abstract
Background Acute respiratory distress syndrome (ARDS) is a life-threatening disease; however, its treatment has not yet been fully established. The progression of ARDS is considered to be mediated by altered intercellular communication between immune and structural cells in the lung. One of several factors involved in intercellular communication is the extracellular vesicle (EV). They act as carriers of functional content such as RNA molecules, proteins, and lipids and deliver cargo from donor to recipient cells. EVs have been reported to regulate the nucleotide-binding oligomerization like receptor 3 (NLRP3) inflammasome. This has been identified as the cellular machinery responsible for activating inflammatory processes, a key component responsible for the pathogenesis of ARDS. Methods Here, we provide comprehensive genetic analysis of microRNAs (miRNAs) in EVs, demonstrating increased expression of the miRNA-466 family in the bronchoalveolar lavage fluid of a mouse ARDS model. Results Transfection of bone marrow-derived macrophages (BMDMs) with miRNA-466 g and 466 m-5p resulted in increased interleukin-1 beta (IL-1β) release after LPS and ATP treatment, which is an established in vitro model of NLRP3 inflammasome activation. Moreover, LPS-induced pro-IL-1β expression was accelerated by miRNA-466 g and 466 m-5p in BMDMs. Conclusions These findings imply that miRNA-466 family molecules are secreted via EVs into the airways in an ARDS model, and this exacerbates inflammation through the NLRP3 inflammasome. Our results suggest that the NLRP3 inflammasome pathway, regulated by extracellular vesicle miRNA, could act as a therapeutic target for ARDS.
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- 2019
46. Relationship between Clozapine-Induced Electroencephalogram Abnormalities and Serum Concentration of Clozapine in Japanese Patients with Treatment-Resistant Schizophrenia
- Author
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Takashi Kanbayashi, Yuka Sugawara Kikuchi, and Tetsuo Shimizu
- Subjects
EEG normal ,medicine.diagnostic_test ,business.industry ,Treatment-resistant schizophrenia ,Eeg abnormalities ,Serum concentration ,Electroencephalography ,Electroencephalography abnormalities ,030227 psychiatry ,03 medical and health sciences ,Psychiatry and Mental health ,0302 clinical medicine ,Serum clozapine concentration ,Anesthesia ,medicine ,Treatment resistant schizophrenia ,Original Article ,business ,030217 neurology & neurosurgery ,Biological Psychiatry ,Clozapine ,medicine.drug - Abstract
Objective The objective of this study was to investigate the relationship between the serum concentration of clozapine (C-CLZ), Ndesmethylclozapine (N-CLZ) and the daily dose of CLZ (D-CLZ), and the relationships among CLZ and electroencephalogram (EEG) abnormalities. Methods Twenty-eight patients were recruited to this study, but 8 patients were excluded because clozapine was discontinued before the post-treatment measurement of EEG or C-CLZ. Ultimately, 20 patients (6 men, 14 women) with an average age of 36 years were enrolled. The subjects were divided into EEG normal and abnormal groups. C-CLZ and N-CLZ were measured at 4, 12, 26, and 52 weeks after initiating CLZ administration. Results All patients had normal baseline EEG signals, and 8 patients showed EEG abnormalities later. There were significant correlations between C-CLZ and D-CLZ, and between N-CLZ and D-CLZ. The C-CLZ/D-CLZ, N-CLZ/D-CLZ, and C-CLZ/N-CLZ ratio were not significantly different between the EEG normal and EEG abnormal groups. The EEG abnormal group had significant higher proportion of patients with high intra-individual variability in their C-CLZ/D-CLZ ratio. Conclusion There is no relationship between C-CLZ and EEG abnormalities. However, patients with high intra-individual variability in their C-CLZ/D-CLZ ratio had greater possibility of exhibiting EEG abnormalities.
- Published
- 2019
47. Aripiprazole for the treatment of psychotic symptoms in patients with dementia with Lewy bodies: a case series
- Author
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Yuka Sugawara Kikuchi and Tetsuo Shimizu
- Subjects
medicine.medical_specialty ,End point ,business.industry ,Dementia with Lewy bodies ,Clinical Dementia Rating ,medicine.disease ,Neuropsychiatric inventory ,030227 psychiatry ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,mental disorders ,Brief Psychiatric Rating Scale ,medicine ,Dementia ,Aripiprazole ,In patient ,business ,030217 neurology & neurosurgery ,medicine.drug - Abstract
Purpose The core features of dementia with Lewy bodies (DLB) are cognitive fluctuations, visual hallucinations, and parkinsonian symptoms. Although there have been several reports on the efficacy of treatments for psychotic symptoms in patients with DLB, little is known regarding the treatment effects of aripiprazole. The aim of this study was to evaluate the efficacy and safety of aripiprazole for the treatment of psychotic symptoms in patients with DLB. Patients and methods We employed a 10-week, open-label study design with 11 patients who met the criteria for DLB. The patients had previously experienced persistent or intermittent delusions, hallucinations, or both for at least 1 month. Aripiprazole was initiated at a low dose (3 or 6 mg/day) and titrated to higher doses at 2-week intervals or more rapidly, as needed. The Neuropsychiatric Inventory (NPI), Brief Psychiatric Rating Scale (BPRS), and Clinical Global Impression-Severity (CGI-S) were administered at baseline and 1, 2, 4, 8, and 10 weeks later. The Simpson-Angus Scale (SAS), Clinical Dementia Rating (CDR), and Mini-Mental State Examination (MMSE) Scale were evaluated at baseline and at week 10. The NPI, CGI-S, and BPRS scores were compared between the baseline and each assessment point and between each assessment point and the one before assessment point. The SAS, CDR, and MMSE scores were compared between the baseline and the end point. Results The mean NPI and BPRS scores improved until the fourth week; they significantly decreased at each assessment point compared to the previous one. Afterward, improvements slowed and continued without significant decrease. The median SAS scores significantly decreased at the end point compared to the baseline (P
- Published
- 2019
48. Analysis of the impact of non-compulsory measures on human mobility in Japan during the COVID-19 pandemic
- Author
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Lingling, Wu and Tetsuo, Shimizu
- Subjects
Urban Studies ,Sociology and Political Science ,Tourism, Leisure and Hospitality Management ,Development - Abstract
To curb the spread of the COVID-19 pandemic, countries around the world have imposed restrictions on their population. This study quantitatively assessed the impact of non-compulsory measures on human mobility in Japan during the COVID-19 pandemic, through the analysis of large-scale anonymized mobile-phone data. The non-negative matrix factorization (NMF) method was used to analyze mobile statistics data from the Tokyo area. The results confirmed the suitability of the NMF method for extracting behavior patterns from aggregated mobile statistics data. Data analysis results indicated that although non-pharmaceutical interventions (NPIs) measures adopted by the Japanese government are non-compulsory and rely largely on requests for voluntary self-restriction, they are effective in reducing population mobility and motivating people to practice social distancing. In addition, the current study compared the mobility change in three cities (i.e., Tokyo, Osaka, and Hiroshima), and discussed their similarity and difference in behavior pattern changes during the pandemic. It is expected that the analytical tool proposed in this study can be used to monitor mobility changes in real-time during the pandemic, as well as the long-term evolution of population mobility patterns in the post-pandemic phase.
- Published
- 2022
49. Japan COVID-19 Task Force: a nation-wide consortium to elucidate host genetics of COVID-19 pandemic in Japan
- Author
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Shuichi Yoshida, Yoshihiro Hirai, Hiroshi Takahashi, Yoshiyuki Sekikawa, Saeko Takahashi, Yoshitaka Oyamada, Shunsuke Uno, Koutaro Yokote, Kunihiko Takahashi, Shigenari Nukaga, Yoshinao Ono, Shoichiro Ishihara, Nozomu Kimura, Tomohiro Adachi, Shigeki Fujitani, Eri Hagiwara, Motoyuki Suzuki, Tomouki Ogata, Namiki Izumi, Shinji Abe, Etsuko Tagaya, Yoshinori Hasegawa, Yoshimune Miyazaki, Junichi Sasaki, Yoshinori Tanino, Seishi Ogawa, Yuki Togashi, Satoshi Fuke, Yoshiaki Inoue, Hideo Ogata, Masaomi Yamamoto, Hiroshi Saito, Jun Shinozuka, Sho Uchida, Masayoshi Miyawaki, Atsushi Kumanogoh, Koichiro Matsumoto, Yuko Kitagawa, Mayu Endo, Mitsuru Odate, Hiroki Tateno, Fumitake Saito, Mizuki Kuramochi, Shoji Suzuki, Koji Murakami, Kenichi Arakawa, Shozo Yoshida, Hitoshi Sasano, Keigo Kobayashi, Takuro Nii, Takashi Ishiguro, Ryuichi Saito, Yohei Mikami, Takashi Inoue, Haruhiko Kishima, Daisuke Arai, Takao Mochimaru, Minoru Takada, Yuya Ueno, Takehiro Izumo, Reina Hara, Nobuyuki Hizawa, Atsuho Morita, Takanori Hasegawa, Masahiro Seike, Hisako Sageshima, Takeshi Hattori, Shinichi Namba, Shuko Mashimo, Tomoya Tsuchida, Hiromu Tanaka, Naoki Miyazawa, Masatoshi Kawana, Shunichiro Konishi, Takatoshi Enomoto, Takuya Hashino, Hiroki Watanabe, Kentaro Hayashi, Sumito Inoue, Satoshi Hagimoto, Toru Yoshida, Akiko Fujiwara, Masaki Okamoto, Hiroki Kabata, Shuji Tohda, Baku Oyama, Norihiko Takemoto, Nobuyasu Awano, Makoto Hiki, Yasutaka Fukui, Takahiro Fukui, Keisuke Onoi, Yuichiro Yamada, Takayuki Shiroyama, Mayuko Tani, Hiroyuki Muranaka, Kazuhide Ohta, Yoshifumi Kimizuka, Hajime Iwagoe, Yasuko Fuchimo, Hiroki Nakatsumi, Hiroyuki Minemura, Hisatoshi Sugiura, Haruhi Takagi, Hiroyuki Kokuto, Yasuhiro Kimura, Masatoshi Takagaki, Yuki Sato, Masao Hagihara, Junko Kagyo, Yusuke Kawamura, Sayoko Ishihara, Akinori Kimura, Aki Ogawa, Hironori Sagara, Noa Sasa, Masahiro Kanai, Isano Hase, Takenori Okada, Akiyoshi Nakayama, Osamu Narumoto, Norihito Omote, Kazunori Tomono, Toshiro Sato, Hatsuyo Takaoka, Mayumi Takeuchi, Keiko Kan-o, Satoshi Okamori, Yukinori Okada, Yoshito Takeda, Kazuto Ito, Tatsuhiko Naito, Reina Hayashi, Toshikatsu Sado, Kazuya Ichikado, Yasushi Matsushita, Nobuaki Mori, Takashi Nishida, Toshitaka Maeno, Tomomi Takano, Soichiro Ueda, Tomoyasu Nishimura, Masaru Nishitsuji, Ryusuke Anan, Arihiko Kanehiro, Akira Umeda, Syuji Kanayama, Yosuke Omae, Tomoki Nagasaka, Koichi Nishi, Yoshiyuki Ohira, Fumimaro Ito, Toru Tanaka, Kenichiro Takahashi, Hidenori Kanda, Hidenori Inohara, Kaoru Nagata, Kei Nishiyama, Masafumi Watanabe, Katsunori Masaki, Ryuzo Abe, Hirofumi Kamata, Masahiro Harada, Chihiro Tani Sassa, Tomoya Sano, Shoichi Ihara, Tadashi Manabe, Takafumi Ueno, Takahito Fukusumi, Meiko Takahashi, Kyuto Sonehara, Kana Sasaki, Hiroyuki Takoi, Chie Watanabe, Takahiro Tsuburai, Tomonori Sato, Yoichi Kobayashi, Kazuhisa Takahashi, Yasushi Nakano, Kenichi Yamamoto, Takayoshi Hyugaji, Hirohito Sano, Ho Namkoong, Atsushi Sueyoshi, Naoya Ichimura, Yoshiteru Tominaga, Masaru Amishima, Ken Suzuki, Ken Ohta, Shigehiro Hagiwara, Masayuki Kanai, Kota Hoshino, Shuhei Kawabata, Mitsuhiro Yamada, Toshio Naito, Akihiro Ono, Yotaro Takaku, Yoko Sato, Satoru Miyano, Junichi Ochi, Yoshikazu Mutoh, Hiroaki Baba, Yoko Shibata, Tatsuya Yamashita, Yoko Ito, Hiromu Iwamura, Munehisa Fukushima, Saori Amiya, Takayuki Honda, Yuta Kono, Susumu Isogai, Ryuya Edahiro, Makoto Masuda, Hisato Shimada, Hideaki Nagai, Tomoya Baba, Fukuki Saito, Toshihiro Sakurai, Ryota Kikuchi, Yoichiro Noguchi, Tatsuhiko Anzai, Mizuha Hashiguchi, Masamichi Sato, Naoki Hasegawa, Yasunari Miyazaki, Tetsuya Ueda, Yasuhiko Yamano, Shinji Ozaki, Yoshinobu Saito, Takuya Inoue, Sohei Nakayama, Sawako Arai, Yu Kusaka, Miki Kawada, Yuko Kurihara, Daiki Wada, Isamu Kamimaki, Motonao Ishikawa, Sumiko Kohashi, Sae Wada, Kazuma Yagi, Rino Ishihara, Hiroko Okabayashi, Nobuhiro Kodama, Mai Takahashi, Kiyoshi Komuta, Yusuke Chihara, Yoshihiko Nakamura, Akifumi Endo, Shuichiro Matsumoto, Akira Igarashi, Shuhei Yamada, Akiko Yonekawa, Yukiko Nakajima, Sakamoto Koji, Kazue Fujita, Masakiyo Yatomi, Makoto Ishii, Ryuji Koike, Eigo Shimizu, Shigeru Chiba, Satoru Miyawaki, Shunsuke Maeda, Toshio Odani, Hideyasu Sugimoto, Masanori Nishikawa, Yoshinori Yasui, Akira Ando, Takayuki Shibusawa, Nobuharu Ooshima, Toshiyuki Kita, Satoru Fukuyama, Ai Tada, Mariko Terashima, Tadao Nagasaki, Rie Baba, Atsuya Narita, Takanori Ogawa, Tetsuo Shimizu, Ken Ueda, Yuki Haruta, Satoru Hashimoto, Ryohei Suematsu, Ho Lee, Ryosuke Satomi, Hirotaka Eguchi, Kota Ishioka, Ryousuke Aoki, Yusuke Suzuki, Takemasa Matsumoto, Kazunari Sonobe, Hisato Hiranuma, Hirayasu Kai, Kosuke Yoshida, Ayumi Yoshifuji, Takeru Kashiwada, Yuko Harada, Reoto Takei, Aya Wakabayashi, Tomohiro Matsunaga, Haruhiko Hirata, Hiroshi Morisaki, Yoshifumi Uwamino, Yoshihisa Tokunaga, Kazuki Niwa, Hidetoshi Kawashima, Hideki Terai, Kenji Takano, Mumon Takita, Yuko Komase, Masaki Yamasaki, Chiaki Hosoda, Takayuki Ogura, Shun Shibata, Mitsuru Motegi, Takeshi Takahashi, Takehiko Ohba, Shinichi Hayashi, Satoshi Ito, Yu Kasamatsu, Shinnosuke Ikemura, Tetsuya Fukuta, Koichiro Asano, Taka-aki Nakada, Kota Murohashi, Tomoyuki Uchida, Hirotaka Matsuo, Satoko Hanada, Kenta Nishiyama, Minoru Inomata, Nobukazu Fujimoto, Tomoya Tateishi, Mitsuaki Kojima, Kazuto Kato, Kazuhiko Katayama, Yuichi Maeda, Takashi Kagaya, Keiko Wakahara, Takashi Ogura, Yasuhiro Gon, Taku Oshima, Ken Arimura, Shuhei Maruyama, Mari Tone, Ryuichi Sato, Koichi Fukunaga, Hidefumi Koh, Yuichiro Kitagawa, Noboru Takayanagi, Masatoshi Miyazaki, Ichiro Nakachi, Akihiko Kawana, Toshiyuki Hirano, Yohei Funatsu, Yasushi Nakamori, Reiko Sado, Yasuo Shichinohe, Junya Suzuki, Yasunari Kaneyama, Takahito Miyake, Kunihiro Yamagata, Yasuhito Nannya, Shinichi Ogawa, Naoya Hida, Tsuyoshi Oguma, Kazunori Nakamura, Kosaku Nanki, Naozumi Hashimoto, Fumihiko Matsuda, Tomoyuki Kimura, Daiki Morikawa, Yuji Uchimura, Yoshiaki Tanaka, Kazuhisa Yoshiya, Takashige Kuraki, Yoshihiro Eriguchi, Tomohisa Shoko, Tadanaga Shimada, Yuji Hiramatsu, Akihiko Tanaka, Hideya Kitamura, Yutaka Kozu, Ryosuke Arai, Taisuke Isono, Yasushi Makino, Seiya Imoto, Yuichi Adachi, Yuma Matsui, Masato Shinoki, Kazumi Nishio, Keiko Mitamura, Tomonori Imamura, Masanori Azuma, Sonoko Harada, Hiroshi Ono, Kotoe Katayama, Masumi Ai, Keisuke Shinozuka, Reiko Taki, Junichi Maruyama, Takao Imai, Yutaro Kaneko, Kensuke Kanaoka, Sho Ota, Yoji Nagasaki, Toshihiro Kishikawa, Takayuki Niitsu, Hirohisa Horinouchi, Naoyuki Kuse, Tetsuya Shiomi, Jun Nakajima, Katsushi Tokunaga, Norihiro Harada, Keita Masuzawa, Noriyuki Kijima, Takeshi Osawa, Satoru Sakagami, Kazuhiko Fujii, Shotaro Chubachi, Tomoyuki Yoshihara, Yoshimi Noda, Hiroyasu Ishikura, Kiyoshi Koshida, Shin Ohta, Ai Nakamura, Naota Kuwahara, Shinji Ogura, Suguru Ueda, Akihiro Ito, Morio Nakamura, Tohru Takata, Yuya Shirai, Hidenori Takahashi, Eriko Yoshida, Satoru Beppu, Mitsuyoshi Utsugi, Masafumi Shimoda, Masatoshi Shimo, Tomoo Ishii, Takefumi Nikaido, Takanori Asakura, Kazuya Miyagawa, Takanori Kanai, Hiroto Kishi, Akane Kamiya, Genta Nagao, Kodai Kawamura, Ryunosuke Saiki, Takashi Yoshiyama, Hajime Sasano, Kazuyoshi Watanabe, and Yuta Matsubara
- Subjects
Genetics ,education.field_of_study ,Population ,Mendelian Randomization Analysis ,Genome-wide association study ,Odds ratio ,Biology ,medicine.disease ,Obesity ,Confidence interval ,Minor allele frequency ,Pandemic ,medicine ,education - Abstract
To elucidate the host genetic loci affecting severity of SARS-CoV-2 infection, or Coronavirus disease 2019 (COVID-19), is an emerging issue in the face of the current devastating pandemic. Here, we report a genome-wide association study (GWAS) of COVID-19 in a Japanese population led by the Japan COVID-19 Task Force, as one of the initial discovery GWAS studies performed on a non-European population. Enrolling a total of 2,393 cases and 3,289 controls, we not only replicated previously reported COVID-19 risk variants (e.g., LZTFL1, FOXP4, ABO, and IFNAR2), but also found a variant on 5p35 (rs60200309-A at DOCK2) that was significantly associated with severe COVID-19 in younger (-8 (odds ratio = 2.01, 95% confidence interval = 1.58-2.55). This risk allele was prevalent in East Asians, including Japanese (minor allele frequency [MAF] = 0.097), but rarely found in Europeans. Cross-population Mendelian randomization analysis made a causal inference of a number of complex human traits on COVID-19. In particular, obesity had a significant impact on severe COVID-19. The presence of the population-specific risk allele underscores the need of non-European studies of COVID-19 host genetics.
- Published
- 2021
50. Long-Term Survival in Extensive Disease Small Cell Lung Cancer Patients Treated Without Immune Checkpoint Inhibitors
- Author
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Kazushige Wakuda, Michitoshi Yabe, Hiroaki Kodama, Naoya Nishioka, Taichi Miyawaki, Eriko Miyawaki, Nobuaki Mamesaya, Haruki Kobayashi, Shota Omori, Akira Ono, Hirotsugu Kenmotsu, Tateaki Naito, Haruyasu Murakami, Tetsuo Shimizu, Yasuhiro Gon, and Toshiaki Takahashi
- Abstract
Background: Immune checkpoint inhibitors (ICIs) combined with chemotherapy have been approved as first-line treatment for patients with untreated extensive disease-small cell lung cancer (ED-SCLC). However, there are few reports about the long-term survival in patients with ED-SCLC treated without ICIs. Thus, we analyzed the long-term survival in patients with ED-SCLC.Methods: We retrospectively examined the medical records of patients with SCLC who were treated at our hospital between September 2002 and September 2019. The main inclusion criteria were as follows: (1) histological or cytological confirmation of SCLC, (2) diagnosed with ED-SCLC, and (3) received chemotherapy, not including ICIs, as the first-line treatment. To assess the trends of treatment outcomes, we compared the survival outcomes between 2002–2010 (early) and 2011–2019 (late) groups.Results: A total of 314 patients were included in this study. Patient characteristics at the time of first-line treatment were as follows: median age was 69 years; 82% of the patients were male; and 70% had a performance status of 0 or 1. The median follow-up time of overall survival (OS) was 7.4 years, and 89% of the patients died. The median progression-free survival and survival time were 4.9 months and 12.1 months, respectively. Five-year survival rate was 2%. There was no significant difference in survival between the early and late groups.Conclusion: We found that the long-term survival in ED-SCLC patients treated without ICIs was poor. Prior to the approval of ICI treatment for ED-SCLC, there was no improvement in the OS for approximately 20 years.
- Published
- 2021
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