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Morita M, Otsu R, Kawasaki M. Brainwave activities reflecting depressed mood: a pilot study. Sci Rep 2023; 13:14036. [PMID: 37666858 PMCID: PMC10477265 DOI: 10.1038/s41598-023-40582-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/13/2023] [Indexed: 09/06/2023] Open
Abstract
Early diagnosis and treatment of depression are desirable but currently difficult due to a lack of established biomarkers. Although biomarkers for depression based on electroencephalogram (EEG) data have long been explored, most existing methods are thought to capture cognitive decline caused by depression and are unsuccessful in detecting signs of depression. Here we report that some brainwave activities involving phase resetting reflect the depressed mood at the time, which can be easily monitored by measuring the resting EEG with eyes closed for 1 min with a few electrodes. We instructed 10 participants (nine healthy and one diagnosed with depression, aged 18-34) to record their EEG for 14-26 days. We found that indicators of depressed mood were correlated with the occurrence frequency of EEG phase resetting. For most participants, the correlation coefficients swung systematically between large positive and large negative values with respect to EEG frequency; however, the frequencies at which they were maximum or minimum differed among participants. Although this study is in the pilot phase and needs further experimentation, the results are expected to lead to innovative biomarkers for early detection of depression and may contribute to a better understanding and treatment of depression.
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Affiliation(s)
- Masahiko Morita
- Institute of Systems and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan.
| | - Ryusei Otsu
- Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Japan
| | - Masahiro Kawasaki
- Institute of Systems and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
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Figueroa A, Maharaj A, Kang Y, Dillon KN, Martinez MA, Morita M, Nogimura D, Fischer SM. Combined Citrulline and Glutathione Supplementation Improves Endothelial Function and Blood Pressure Reactivity in Postmenopausal Women. Nutrients 2023; 15:nu15071557. [PMID: 37049398 PMCID: PMC10097312 DOI: 10.3390/nu15071557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/07/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
Postmenopausal women (PMW) may experience endothelial dysfunction associated with arginine (ARG) deficiency relative to asymmetric dimethylarginine (ADMA) caused by oxidative stress. Endothelial dysfunction contributes to increased blood pressure (BP) responsiveness to sympathoexcitation induced by the cold pressor test (CPT). We investigated the effects of citrulline alone (CIT) and combined with the antioxidant glutathione (CIT+GSH) on vascular function. Forty-four healthy PMW were randomized to CIT (6 g), CIT+GSH (2 g + 200 mg: Setria®) or placebo (PL) for 4 weeks. Brachial artery flow-mediated dilation (FMD), aortic stiffness (pulse wave velocity, PWV), brachial and aortic BP reactivity to CPT, and serum fasting blood glucose (FBG), ARG, and ARG/ADMA ratio were measured. Baseline FBG was higher in CIT+GSH vs. PL. FMD increased after CIT+GSH vs. PL (p < 0.05). CIT and CIT+GSH increased ARG/ADMA (p < 0.05), but did not affect aortic PWV. CIT+GSH attenuated the brachial and aortic systolic BP and mean arterial pressure (MAP) responses to CPT vs. PL and CIT (p < 0.05). The improvements in FMD were related to baseline FMD (r = -0.39, p < 0.05) and aortic MAP response to CPT (r = -0.33, p < 0.05). This study showed that CIT+GSH improved FMD and attenuated systolic BP and MAP reactivity in PMW. Although CIT increased ARG/ADMA, it did not improve FMD in healthy PMW.
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Affiliation(s)
- Arturo Figueroa
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA
| | - Arun Maharaj
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Yejin Kang
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA
| | - Katherine N Dillon
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA
| | - Mauricio A Martinez
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA
| | - Masahiko Morita
- Research & Development Division, KIRIN Central Research Institute, Kirin Holdings Co., Ltd., 2-26-1, Muraoka-Higashi, Fujisawa 251-8555, Kanagawa, Japan
| | - Dai Nogimura
- Research & Development Division, KIRIN Central Research Institute, Kirin Holdings Co., Ltd., 2-26-1, Muraoka-Higashi, Fujisawa 251-8555, Kanagawa, Japan
| | - Stephen M Fischer
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA
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Watanabe M, Okamoto M, Komichi S, Huang H, Matsumoto S, Moriyama K, Ohshima J, Abe S, Morita M, Ali M, Takebe K, Kozaki I, Fujimoto A, Kanie K, Kato R, Uto K, Ebara M, Yamawaki-Ogata A, Narita Y, Takahashi Y, Hayashi M. Novel Functional Peptide for Next-Generation Vital Pulp Therapy. J Dent Res 2023; 102:322-330. [PMID: 36415061 PMCID: PMC9989233 DOI: 10.1177/00220345221135766] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Although vital pulp therapy should be performed by promoting the wound-healing capacity of dental pulp, existing pulp-capping materials were not developed with a focus on the pulpal repair process. In previous investigations of wound healing in dental pulp, we found that organic dentin matrix components (DMCs) were degraded by matrix metalloproteinase-20, and DMC degradation products containing protein S100A7 (S100A7) and protein S100A8 (S100A8) promoted the pulpal wound-healing process. However, the direct use of recombinant proteins as pulp-capping materials may cause clinical problems or lead to high medical costs. Thus, we hypothesized that functional peptides derived from recombinant proteins could solve the problems associated with direct use of such proteins. In this study, we identified functional peptides derived from the protein S100 family and investigated their effects on dental pulp tissue. We first performed amino acid sequence alignments of protein S100 family members from several mammalian sources, then identified candidate peptides. Next, we used a peptide array method that involved human dental pulp stem cells (hDPSCs) to evaluate the mineralization-inducing ability of each peptide. Our results supported the selection of 4 candidate functional peptides derived from proteins S100A8 and S100A9. Direct pulp-capping experiments in a rat model demonstrated that 1 S100A8-derived peptide induced greater tertiary dentin formation compared with the other peptides. To investigate the mechanism underlying this induction effect, we performed liquid chromatography-tandem mass spectrometry analysis using hDPSCs and the S100A8-derived peptide; the results suggested that this peptide promotes tertiary dentin formation by inhibiting inflammatory responses. In addition, this peptide was located in a hairpin region on the surface of S100A8 and could function by direct interaction with other molecules. In summary, this study demonstrated that a S100A8-derived functional peptide promoted wound healing in dental pulp; our findings provide insights for the development of next-generation biological vital pulp therapies.
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Affiliation(s)
- M Watanabe
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Okamoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Komichi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - H Huang
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Matsumoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - K Moriyama
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - J Ohshima
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Abe
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Morita
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Ali
- Department of Restorative Dentistry, Faculty of Dentistry, University of Khartoum, Khartoum, Sudan
| | - K Takebe
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - I Kozaki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Aichi, Japan
| | - A Fujimoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Aichi, Japan
| | - K Kanie
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Aichi, Japan.,Department of Biotechnology and Chemistry, Faculty of Engineering, Kindai University, Hiroshima, Japan
| | - R Kato
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Aichi, Japan
| | - K Uto
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - M Ebara
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - A Yamawaki-Ogata
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Y Narita
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Y Takahashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Hayashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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Moline M, Nakai K, Morita M, Zhao T, Takese T, Cheng J, Yun L. Pharmacokinetics, Safety, and Tolerability of Lemborexant in Healthy Chinese Subjects. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Crowley MT, Lonergan E, O’Callaghan P, Joyce CM, Morita M, Conlon N, O’Halloran DJ. IGF-2 mediated hypoglycemia and the paradox of an apparently benign lesion: a case report & review of the literature. BMC Endocr Disord 2022; 22:262. [PMID: 36303203 PMCID: PMC9615362 DOI: 10.1186/s12902-022-01175-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/04/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Non-islet cell tumour hypoglycemia (NICTH) is rarely encountered in clinical practice. Insulin-like growth factor 2 (IGF2) is the most common cause of NICTH observed in the setting of mesenchymal and epithelial neoplasia. This is a paraneoplastic syndrome caused by IGF2 activation of the insulin receptor. CASE PRESENTATION An 80 year old female presented with a short history of recurrent episodes of confusion with laboratory confirmed hypoglycemia with a plasma glucose of 2.7 mmol/L on fasting which fulfilled Whipple's triad. Diagnostic clues to the aetiology at presentation include the fasting pattern of hypoglycemia, hypokalaemia and the absence of weight gain. A 72 hour fast with results showed early hypoglycemia and suppression of serum insulin, c-peptide, and proinsulin. Serum insulin antibody was not detected. Subsequent measurement of the serum IGF2:IGF1 ratio was elevated at 22.3 and consistent with IGF-2 mediated hypoglycemia and imaging studies demonstrated a pelvic mass. Dietary intervention and oral prednisolone abated hypoglycemia prior to surgery. Ultimately, hypoglycemia resolved following operative intervention and steroid therapy was successfully withdrawn. Histopathology was remarkable for dual neoplastic processes with uterine solitary fibrous tumour (SFT) confirmed as the source of IGF2 hypersecretion on IGF-2 immunohistochemistry and a coincidental invasive high grade serous carcinoma involving the fimbria of the right fallopian tube. CONCLUSION The paradox in this case is that the benign solitary fibrous tumour accounted for patient morbidity through secretion of IGF2 and without treatment, posed a mortality risk. This is despite the synchronous presence of a highly malignant fallopian tube neoplasm. This case reinforces the need for thorough clinical evaluation of hypoglycemia to allow prompt and definitive management.
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Affiliation(s)
- Mairead T. Crowley
- Department of Endocrinology & Diabetes, Cork University Hospital, Cork, Ireland
| | - Eibhlin Lonergan
- Department of Endocrinology & Diabetes, Cork University Hospital, Cork, Ireland
| | - Peter O’Callaghan
- Department of Endocrinology & Diabetes, Cork University Hospital, Cork, Ireland
| | - Caroline M. Joyce
- Principal Clinical Biochemist, Department of Biochemistry, Cork University Hospital, Cork, Ireland
| | - M. Morita
- Department of Internal Medicine, Shimane University Faculty of Medicine, Izumo, Shimane Japan
| | - Niamh Conlon
- Department of Histopathology, Cork University Hospital, Cork, Ireland
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Wu Y, Morita M, Izawa J. Reward prediction errors, not sensory prediction errors, play a major role in model selection in human reinforcement learning. Neural Netw 2022; 154:109-121. [PMID: 35872516 DOI: 10.1016/j.neunet.2022.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/25/2022] [Accepted: 07/06/2022] [Indexed: 10/17/2022]
Abstract
Model-based reinforcement learning enables an agent to learn in variable environments and tasks by optimizing its actions based on the predicted states and outcomes. This mechanism has also been considered in the brain. However, exactly how the brain selects an appropriate model for confronting environments has remained unclear. Here, we investigated the model selection algorithm in the human brain during a reinforcement learning task. One primary theory of model selection in the brain is based on sensory prediction errors. Here, we compared this theory with an alternative possibility of internal model selection with reward prediction errors. To compare these two theories, we devised a switching experiment from a first-order Markov decision process to a second-order Markov decision process that provides either reward- or sensory prediction error regarding environmental change. We tested two representative computational models driven by different prediction errors. One is the sensory prediction-error-driven Bayesian algorithm, which has been discussed as a representative internal model selection algorithm in the animal reinforcement learning task. The other is the reward-prediction-error-driven policy gradient algorithm. We compared the simulation results of these two computational models with human reinforcement learning behaviors. The model fitting result supports that the policy gradient algorithm is preferable to the Bayesian algorithm. This suggests that the human brain employs the reward prediction error to select an appropriate internal model in the reinforcement learning task.
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Affiliation(s)
- Yihao Wu
- School of Integrative and Global Majors, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8573, Japan.
| | - Masahiko Morita
- Faculty of Engineering, Information and Systems, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8573, Japan.
| | - Jun Izawa
- Faculty of Engineering, Information and Systems, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8573, Japan.
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Yamanaka R, Shirakawa Y, Inoue-Minakuchi M, Yokoi A, Noma K, Tanabe S, N. M, Fujiwara T, Ekuni D, Morita M. PNI decreased in the esophageal cancer patients with good dental occlusal support during neoadjuvant therapy. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nakagawa T, Fukuhara T, Imai K, Igusa R, Yokota H, Watanabe K, Suzuki A, Morita M, Inoue A, Miura M, Minamiya Y, Maemondo M. FP05.05 A Prospective Observational Study of Osimertinib Using Plasma Concentrations in NSCLC With Acquired EGFR T790M Mutation. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yasuda M, Tachi T, Osawa T, Watanabe H, Inoue S, Makino T, Nagaya K, Morita M, Tanaka K, Aoyama S, Kasahara S, Teramachi H, Mizui T. Risk factors for thrombocytopenia and analysis of time to platelet transfusion after azacitidine treatment. Pharmazie 2021; 76:444-449. [PMID: 34481536 DOI: 10.1691/ph.2021.1566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The use of azacitidine (AZA) has been known to lead to a high incidence of hematotoxic adverse events. The aims of this study were to identify the risk factors for thrombocytopenia after the administration of AZA and to analyze time to the initial platelet transfusion. Sixty-two patients with myelodysplastic syndrome (MDS), who were treated with AZA in Gifu Municipal Hospital between March 2012 and June 2020, were included in this study. The risk factors for thrombocytopenia were identified using univariate analysis of patient characteristics, disease type, and laboratory values immediately before the start of treatment. Variables with p<0.2 identified in the univariate analysis were used as independent variables in the multivariate analysis. This analysis identified "creatinine clearance (CCr) <60 mL/min" as a significant factor (odds ratio, 4.790; 95% confidence interval [CI], 1.380-16.70; p=0.014). Subsequently, time in days to the initial platelet transfusion after the initial administration of AZA was analyzed using the log-rank test. The overall median time in days to platelet transfusion was 370 days. The log-rank test was used to determine the influence of patient characteristics, disease type, and laboratory values immediately before the start of treatment. The subsequent Cox proportional hazard regression analysis using variables with p<0.2 as independent variables identified "hemoglobin (Hb) <8.0 g/dL" as a significant factor (hazard ratio, 2.143; 95% CI, 1.001-4.573; p=0.048). The results of this study led to the following clinical implications: first, patients with CCr of <60 mL/min at the start of treatment should be treated with caution due to the risk of thrombocytopenia. Second, patients with Hb of <8.0 g/dL at the start of treatment may require platelet transfusion in the early stage of treatment.
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Affiliation(s)
- M Yasuda
- Department of Pharmacy, Gifu Municipal Hospital, Japan; Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Japan;,
| | - T Tachi
- Department of Pharmacy, Gifu Municipal Hospital, Japan; Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Japan
| | - T Osawa
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - H Watanabe
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - S Inoue
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - T Makino
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - K Nagaya
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - M Morita
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - K Tanaka
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - S Aoyama
- Department of Pharmacy, Gifu Municipal Hospital, Japan
| | - S Kasahara
- Department of Hematology, Gifu Municipal Hospital, Gifu, Japan
| | - H Teramachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Japan
| | - T Mizui
- Department of Pharmacy, Gifu Municipal Hospital, Japan
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Nakamura A, Mizugaki H, Ikezawa Y, Morita R, Tateishi K, Yokoo K, Sumi T, Kikuchi H, Kitamura Y, Morita M, Aso M, Tsukita Y, Yoshiike F, Furuta M, Tanaka H, Sekikawa M, Hachiya T, Nakamura K, Yokouchi H. 1306P Real-world data of first-line treatment with pembrolizumab for highly PD-L1 expressing NSCLC (HOT/NJLCG2001). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Ono K, Kishimoto M, Fukui S, Kawaai S, Deshpande GA, Yoshida K, Ichikawa N, Kaneko Y, Kawasaki T, Matsui K, Morita M, Tada K, Takizawa N, Tamura N, Taniguchi A, Taniguchi Y, Tsuji S, Kobayashi S, Okada M, López-Medina C, Moltó A, Van der Heijde D, Dougados M, Komagata Y, Tomita T, Kaname S. POS0975 CLINICAL CHARACTERISTICS OF NONRADIOGRAPHIC AXIAL SPONDYLOARTHRITIS IN ASIAN COUNTRIES COMPARED TO OTHER REGIONS: RESULTS OF THE INTERNATIONAL CROSS-SECTIONAL ASAS-COMOSPA STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Clinical characteristics of nonradiographic axial spondyloarthritis (nr-ax-SpA) are highly variable across patients, and may potentially vary across patient populations, particularly due to differing distributions of human leukocyte antigens (HLA) and other genetic factors. The majority of nr-ax-SpA studies have been conducted in Europe, the United States, and small studies are reported from Asia [1].Objectives:To delineate clinical characteristics of patients with nr-ax-SpA in Asian countries in comparison to other areas of the world.Methods:Utilizing the ASAS-COMOSPA data, an international cross-sectional observational study of SpA patients, we analyzed information on demographics, disease characteristics, comorbidities, and risk factors. Patients were classified by region: Asia (China, Japan, Singapore, South Korea, and Taiwan), and non-Asian countries (Europe, Americas, and Africa); patient characteristics, including diagnosis and treatment, were compared.Results:Among 3984 SpA patients included in the study, 1094 were from centers in Asian countries, and 2890 from other regions. 112/780 (14.4%) of axial SpA patients in Asian countries were nr-ax-SpA, substantially less than in other countries (486/1997, 24.3%). Nr-ax-SpA patients in Asian countries compared to nr-ax-SpA in other countries were more likely male (75.9 vs 47.1%), have onset (22.8 vs 27.8 years) and diagnosis (27.2 vs 34.5 years) at younger age, and experience less diagnostic delay (1.88 vs 2.92 years) (Table 1). Nr-ax-SpA patients in Asian countries have higher prevalence of positive HLA-B27 (90.6% vs 61.9%) and fewer peripheral signs such as arthritis, enthesitis, or dactylitis (53.6% vs 66.3%) but have similar rate of extra-articular manifestations (psoriasis, IBD, or uveitis) and co-morbidities. Disease activity, functional impairment, and inflammation on MRI were less in nr-ax-SpA patients in Asian countries. NSAIDs response was higher and use of methotrexate and b-DMARDs were lower among nr-ax-SpA in Asian countries.Conclusion:Among axial SpA patients, substantially lower frequency of nr-ax-SpA was observed in Asian countries compared to other regions of the world. Nr-ax-SpA patients in Asian countries were predominantly male, and had younger disease onset with higher HLA-B27 positivity rate and less peripheral signs, and better response to NSAIDs. These results offer an opportunity to improve both early diagnosis and treatment of nr-ax-SpA patients in Asian countries.Table 1.Characteristics of nonradiographic axial SpA in Asia versus non-Asian regionsVariablesAsianon-Asian regionsp valueN112486Age at disease diagnosis, yrs27.2 [21.1, 39.6]34.5 [27.7, 41.7]<0.001Diagnostic delay, yrs1.88 [0.27, 5.56]2.92 [0.59, 9.58]0.011Male (%)85 (75.9)229 (47.1)<0.001Sacroiliitis on MRI among tested (%)49 (67.1)341 (82.2)0.005HLA B27 positivity among measured (%)96 (90.6)273 (61.9)<0.001Inflammatory Back Pain (%)107 (95.5)478 (98.4)0.076Arthritis, enthesitis, or dactylitis (%)60 (53.6)322 (66.3)0.016Psoriasis (%)12 (10.7)82 (16.9)0.142Uveitis (%)20 (17.9)81 (16.7)0.870Inflammatory bowel disease (%)5 (4.5)27 (5.6)0.817Elevated CRP (%)37 (33.0)213 (43.8)0.048Physician global assessment (0-10)2.0 [1.0, 5.0]2.0 [1.0, 4.0]0.741Patient global assessment (0-10)3.0 [1.0, 6.0]4.0 [2.0, 6.0]0.012ASDAS-CRP1.40 [0.95, 2.08]1.97 [1.21, 2.78]<0.001BASFI0.8 [0.05, 2.65]2.9 [0.8, 5.6]<0.001Good response to NSAIDs (%)80 (71.4)272 (56.0)0.004Methotrexate use (%)18 (16.1)134 (27.6)0.016Biological DMARDs use (%)27 (24.1)191 (39.3)0.004References:[1]López-Medina C, Ramiro S, van der Heijde D, et al. Characteristics and burden of disease in patients with radiographic and non-radiographic axial Spondyloarthritis: a comparison by systematic literature review and meta-analysis. RMD Open. 2019 Nov 21;5(2): e001108.Acknowledgements:This study was conducted under the umbrella of the International Society for Spondyloarthritis Assessment (ASAS) and COMOSPA study was supported by unrestricted grants from Pfizer, AbbVie and UCB.Disclosure of Interests:Keisuke Ono: None declared, Mitsumasa Kishimoto Speakers bureau: AbbVie, Amgen-Astellas BioPharma, Asahi-Kasei Pharma, Astellas, Ayumi Pharma, BMS, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Janssen, Kyowa Kirin, Novartis, Ono Pharma, Pfizer, Tanabe-Mitsubishi, Teijin Pharma, and UCB Pharma, Consultant of: AbbVie, Amgen-Astellas BioPharma, Asahi-Kasei Pharma, Astellas, Ayumi Pharma, BMS, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Janssen, Kyowa Kirin, Novartis, Ono Pharma, Pfizer, Tanabe-Mitsubishi, Teijin Pharma, and UCB Pharma, Sho Fukui: None declared, Satoshi Kawaai: None declared, Gautam A. Deshpande: None declared, Kazuki Yoshida Consultant of: OM1, Inc., Grant/research support from: Corrona, LLC, Naomi Ichikawa: None declared, Yuko Kaneko Speakers bureau: AbbVie, Astellas, Ayumi, Bristol-Myers Squibb, Chugai, Eisai, Eli Lilly, Hisamitsu, Jansen, Kissei, Pfizer, Sanofi, Takeda, Tanabe-Mitsubishi, and UCB, Taku Kawasaki: None declared, Kazuo Matsui: None declared, Mitsuhiro Morita: None declared, Kurisu Tada: None declared, Naoho Takizawa: None declared, Naoto Tamura: None declared, Atsuo Taniguchi: None declared, Yoshinori Taniguchi: None declared, Shigeyoshi Tsuji: None declared, Shigeto Kobayashi: None declared, Masato Okada: None declared, Clementina López-Medina: None declared, Anna Moltó Consultant of: AbbVie, Pfizer, MSD, Novartis, Gilead, Lilly and UCB, Grant/research support from: AbbVie, Pfizer, MSD, Novartis, Gilead, Lilly and UCB, Désirée van der Heijde Consultant of: AbbVie, Amgen, Astellas, AstraZeneca, Bayer, BMS, Boehringer Ingelheim, Celgene, Cyxone, Daiichi, Eisai, Eli-Lilly, Galapagos, Gilead, Glaxo-Smith-Kline, Janssen, Merck, Novartis, Pfizer, Regeneron, Roche, Sanofi, Takeda, UCB Pharma, Employee of: Imaging Rheumatology bv. (Director), Maxime Dougados: None declared, Yoshinori Komagata: None declared, Tetsuya Tomita: None declared, Shinya Kaname: None declared.
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Mori A, Takei T, Suzuki N, Sakamoto K, Morita M, Nakagawa S, Nakahara T, Ishii K. L-Citrulline ameliorates the attenuation of acetylcholine-induced vasodilation of retinal arterioles in diabetic rats. Heliyon 2021; 7:e06532. [PMID: 33842702 PMCID: PMC8020426 DOI: 10.1016/j.heliyon.2021.e06532] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/29/2020] [Accepted: 03/12/2021] [Indexed: 02/01/2023] Open
Abstract
In our previous study, we found that the vasodilation of retinal arterioles induced by acetylcholine and BMS-191011, a large-conductance Ca2+-activated K+ (BKCa) channel opener, were diminished in diabetic rats. Currently, few agents ameliorate the impaired vasodilator responses of retinal blood vessels. Our recent finding that the intravenous infusion of L-citrulline dilated retinal arterioles, suggests that L-citrulline could be a potential therapeutic agent for circulatory disorders of the retina. In this study, we determined the effect of an oral L-citrulline treatment on impaired acetylcholine- and BMS-191011-induced vasodilation in the retinal arterioles of diabetic rats. To induce diabetes, rats were administered an intravenous dose of streptozotocin (65 mg/kg) and a 5% D-glucose solution as drinking water. The L-citrulline (2 g/kg/day) and L-arginine (2 g/kg/day) treatments commenced either 15 days before or just after the streptozotocin injection and continued throughout the experimental period. A 29-day treatment with L-citrulline, but not L-arginine, significantly ameliorated the impaired acetylcholine- and BMS-191011-induced retinal vasodilation in diabetic rats without affecting their plasma glucose levels. The 2-week L-citrulline treatment tended to ameliorate the dysfunction of the acetylcholine-induced retinal vasodilation in diabetic rats. In conclusion, these results showed that the retinal blood vessel dysfunction induced by diabetes mellitus could be prevented by the long-term administration of L-citrulline and suggest that the latter could play a potentially prophylactic role in diabetic retinopathy.
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Affiliation(s)
- Asami Mori
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Corresponding author.
| | - Toshiaki Takei
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Namiko Suzuki
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Kenji Sakamoto
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Masahiko Morita
- Research & Innovation Center, KYOWA HAKKO BIO CO., LTD, 2 Miyukigaoka, Tsukuba-shi, Ibaraki, 305-0841, Japan
| | - Satoshi Nakagawa
- Research & Innovation Center, KYOWA HAKKO BIO CO., LTD, 2 Miyukigaoka, Tsukuba-shi, Ibaraki, 305-0841, Japan
| | - Tsutomu Nakahara
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Kunio Ishii
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
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Saito R, Tsubata Y, Nakamura A, Yoshioka H, Morita M, Honda R, Kanaji N, Watanabe M, Jingu D, Nakagawa T, Nakazawa K, Mouri A, Takeuchi S, Furuya N, Akazawa Y, Miura K, Ichihara E, Kobayashi K, Morita S, Isobe T. P76.79 Osimertinib in Poor PS Patients with T790M-Positive Advanced NSCLC after Progression of EGFR TKI Treatments (NEJ032B). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sasaki K, Sasaki D, Tsuge Y, Morita M, Kondo A. Enhanced methane production from cellulose using a two-stage process involving a bioelectrochemical system and a fixed film reactor. Biotechnol Biofuels 2021; 14:7. [PMID: 33407783 PMCID: PMC7789537 DOI: 10.1186/s13068-020-01866-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND It is desirable to improve the anaerobic digestion processes of recalcitrant materials, such as cellulose. Enhancement of methane (CH4) production from organic molecules was previously accomplished through coupling a bioelectrochemical system (BES); however, scaling-up BES-based production is difficult. Here, we developed a two-stage process consisting of a BES using low-cost and low-reactive carbon sheets as the cathode and anode, and a fixed film reactor (FFR) containing conductive material, i.e., carbon fiber textiles (CFTs) (:BES → FFR). By controlling the cathodic current at 2.7 μA/cm2 without abiotic H2 production, the three-electrode BES system was operated to mimic a microbial electrolysis cell. RESULTS The thermophilic BES (inlet pH: 6.1) and FFR (inlet pH: 7.5) were operated using hydraulic retention times (HRTs) of 2.5 and 4.2 days, respectively, corresponding to a cellulose load of 3555.6 mg-carbon (C)/(L day). The BES → FFR process achieved a higher CH4 yield (37.5%) with 52.8 vol% CH4 in the product gas compared to the non-bioelectrochemical system (NBES) → FFR process, which showed a CH4 yield of 22.1% with 46.8 vol% CH4. The CH4 production rate (67.5 mM/day) obtained with the BER → FFR process was much higher than that obtained using electrochemical methanogenesis (0.27 mM/day). Application of the electrochemical system or CFTs improved the yields of CH4 with the NBES → FFR or BES → non-fixed film reactor process, respectively. Meta 16S rRNA sequencing revealed that putative cellulolytic bacteria (identified as Clostridium species) were present in the BES and NBES, and followed (BES→ and NBES→) FFR. Notably, H2-consuming methanogens, Methanobacterium sp. and Methanosarcina sp., showed increased relative abundances in the suspended fraction and attached fraction of (BES→) FFR, respectively, compared to that of (NBES→) FFR, although these methanogens were observed at trace levels in the BES and NBES. CONCLUSIONS These results indicate that bioelectrochemical preprocessing at a low current effectively induces interspecies H2 transfer in the FFR with conductive material. Sufficient electrochemical preprocessing was observed using a relatively short HRT. This type of two-stage process, BES → FFR, is useful for stabilization and improvement of the biogas (CH4) production from cellulosic material, and our results imply that the two-stage system developed here may be useful with other recalcitrant materials.
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Affiliation(s)
- Kengo Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo, 657-8501, Japan.
| | - Daisuke Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
| | - Yota Tsuge
- Institute for Frontier Science Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan
| | - Masahiko Morita
- Environment Chemistry Sector, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko-shi, Chiba-ken, 270-1194, Japan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo, 657-8501, Japan
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
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Umezawa M, Sera T, Yokota H, Takematsu M, Morita M, Yeroslavsky G, Kamimura M, Soga K. Computed tomography for in vivo deep over-1000 nm near-infrared fluorescence imaging. J Biophotonics 2020; 13:e202000071. [PMID: 32388908 DOI: 10.1002/jbio.202000071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/30/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
This study aims to develop a novel cross-sectional imaging of fluorescence in over-1000 nm near-infrared (OTN-NIR), which allows in vivo deep imaging, using computed tomography (CT) system. Cylindrical specimens of composite of OTN-NIR fluorophore, NaGdF4 co-doped with Yb3+ and Ho3+ (ex: 980 nm, em: 1150 nm), were embedded in cubic agar (10.5-12 mm) or in the peritoneal cavity of mice and placed on a rotatable stage. When the fluorescence from inside of the samples was serially captured from multiple angles, the images were disrupted by the reflection and refraction of emitted light on the sample-air interface. Immersing the sample into water filled in a rectangular bath suppressed the disruption at the interface and successfully reconstructed the position and concentration of OTN-NIR fluorophores on the cross-sectional images using a CT technique. This is promising as a novel three-dimensional imaging technique for OTN-NIR fluorescent image projections of small animals captured from multiple angles.
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Affiliation(s)
- Masakazu Umezawa
- Department of Materials Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Toshihiro Sera
- Department of Mechanical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, Japan
| | - Hideo Yokota
- Image Processing Team, RIKEN Center for Advanced Photonics, Saitama, Japan
| | - Maho Takematsu
- Department of Materials Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Masahiko Morita
- Image Processing Team, RIKEN Center for Advanced Photonics, Saitama, Japan
| | - Gil Yeroslavsky
- Imaging Frontier Center, Research Institute for Science and Technology, Tokyo University of Science, Chiba, Japan
| | - Masao Kamimura
- Department of Materials Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
- Imaging Frontier Center, Research Institute for Science and Technology, Tokyo University of Science, Chiba, Japan
| | - Kohei Soga
- Department of Materials Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
- Imaging Frontier Center, Research Institute for Science and Technology, Tokyo University of Science, Chiba, Japan
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Figueroa A, Jaime SJ, Morita M, Gonzales JU, Moinard C. L-Citrulline Supports Vascular and Muscular Benefits of Exercise Training in Older Adults. Exerc Sport Sci Rev 2020; 48:133-139. [PMID: 32568925 DOI: 10.1249/jes.0000000000000223] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Age-associated reduction in endothelial nitric oxide (NO) synthesis contributes to the development of cardiovascular diseases and sarcopenia. L-Citrulline is a precursor of NO with the ability to improve vascular function and muscle protein synthesis. We hypothesize that vascular and muscular benefits associated with oral L-citrulline supplementation might be augmented by concomitant supplementation with exercise training in older adults.
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Affiliation(s)
- Arturo Figueroa
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX
| | - Salvador J Jaime
- Department of Exercise and Sport Science, University of Wisconsin-La Crosse, La Crosse, WI
| | - Masahiko Morita
- Research & Innovation Center, Kyowa Hakko Bio Co Ltd, Tsukuba, Japan
| | - Joaquin U Gonzales
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX
| | - Christophe Moinard
- Laboratory of Fundamental and SFR Environmental Systems, INSERM U1055, Université Grenoble Alpes, Grenoble, France
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Morita M, Masuyama S, Mizui M, Isaka Y. THU0236 EFFICACY AND SAFETY OF NON-MITOGENIC ANTICD3 ANTIBODY ADMINISTRATION IN THE TREATMENT OF LUPUS-PRONE MICE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease characterized by the production of autoantibody and systemic tissue damages including glomerulonephritis. Immune responses mediated by autoreactive T-cells, as well as by autoantibody, is involved in the development and progression of end-organ damages1. Biologic agents which manipulate T-cell function such as CTLA4-Ig and anti-CD40L have been revisited and tried to treat human SLE, however, both of them failed to demonstrate efficacy.A mouse specific anti-CD3ε mAb, clone 145-2C11 (2C11) is known to be immunosuppressive by down-modulation of TCR and depletion of T-cells2. Administration of Fc-deleted 145-2C11 F(ab’)2to lupus-prone mice was reported to reduce lymphadenopathy and prolong survival, but had no significant effect on anti-DNA antibody titer3. The mechanisms by which 2C11 ameliorates lupus are still unclear.In this study, we used non-mitogenic Fc-modified silent 145-2c11 (2C11S), which disables interaction between target cells and Fc receptor-bearing cells, abolishes antibody directed cytotoxicity, and has longer half-life than F(ab’)2. 2C11S is expected to exert its effect in safe and stable as compared with functional parent-2C11 (2C11P) antibody.Objectives:The purpose of our study is to clarify the difference between 2C11S and 2C11P and to examine their therapeutic effects against murine lupus-prone (NZB/W F1) mice.Methods:20 μg of 2C11P (absolute antibody), 2C11S (absolute antibody), or isotype control immunoglobulin G1 κ (IC)(BioLegend) were administered intraperitoneally to C57BL6 mice. The difference of their action on T-cells were evaluated in a time series from peripheral blood. Plasma cytokine levels were measured within 24 hours after antibody administration.In NZB/W F1 mice from weeks 10 or 20, 2C11P, 2C11S, and IC were administered (100 μg / week, 4 times, intraperitoneally). Plasma anti-dsDNA antibody titer, spleen and kidney blood cell subpopulation, and histology of renal tissue were evaluated before and/or after treatment.Results:Duration of reduced TCR expression in 2C11S group was approximately twice as long as that in 2C11P group, and the levels of plasma TNF-α was not increased in 2C11S group while significant increase was observed in 2C11P group (IC; mean 48.3 ± SD 16.7 pg/ml, 2C11S; 57.9 ± 6.12, 2C11P; 168 ± 50.6, IC VS 2C11S; p>0.99, IC VS 2C11P; p=0.03, ANOVA).In NZB/W F1 mice, the number of follicular helper T (Tfh) cells in spleen significantly decreased in 2C11S group (IC; median 9.0*104[interquartile range 8.5*104], 2C11S; 1.8*104[1.0*104], 2C11P; 1.0*105[9.4*104], IC VS 2C11S; p=0.03, IC VS 2C11P; p>0.99, Kruskal-Wallis). The number of germinal center B (GCB) cells in spleen also decreased in 2C11S group (IC; 1.2*105[1.7*105], 2C11S; 9.0*103[2.3*104], 2C11P; 8.0*104[2.3*105], IC VS 2C11S; p=0.03, IC VS 2C11P; p>0.99). The number of infiltrating CD4+T-cells in kidney significantly reduced in 2C11S group (IC; 3.4*103[1.0*104], 2C11S; 6.4*102[8.8*102], 2C11P; 1.2*103[4.4*103], IC VS 2C11S; p=0.048, IC VS 2C11P; p=0.23). In addition, the rate of increase in anti-dsDNA IgG titers significantly decreased in 2C11S group (IC; 2.3 [1.3], 2C11S; 0.9 [1.0], 2C11P; 1.3 [1.4], IC VS 2C11S; p=0.03, IC VS 2C11P; p=0.24). Finally, glomerular hypercellularity was markedly alleviated only in 2C11S group (IC; 4.4*10 [8.4], 2C11S; 3.8*10 [1.1], 2C11P; 3.9*10 [8.2], IC VS 2C11S; p=0.02, IC VS 2C11P; p=0.57).Conclusion:2C11S did not induce cytokine release with maintaining longer effect on TCR down-modulation. 2C11S reduced autoantibody production by suppressing GCB differentiation, possibly through down-regulation of Tfh cell number. Consequently, 2C11S ameliorated lupus nephritis. On the other hand, 2C11P did not show therapeutic effect.References:[1]George C Tsokos. et al. Nat. Rev. Rheum (2016) 12: 716-730.[2]Kuhn C. et al. Immunotherapy (2016) 8: 889-906.[3]Henrickson M. et al. Arthritis Rheum (1994) 37: 587-589.Disclosure of Interests: :None declared
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Adachi T, Koba S, Hanyu A, Kato M, Morita M, Kawamoto T, Ida H, Watanabe Y, Shinke T. 0590 Reliability of Simple Sleep Evaluation Device at Split-Night Polysomnography. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Watch-PAT is a sleep evaluation device that measures the peripheral blood volume continuously with a probe attached to a fingertip and does not use an electroencephalogram or a nasal cannula. There has been no report on the usefulness of watch-PAT to determine the apnea diagnosis and continuous positive airway pressure (CPAP) use effects in split-night sleep study.
Methods
The consent of the study was obtained. Watch-PAT was simultaneously worn on a patient admitted for split-night polysomnography. The apnea-hypopnea index (AHI) obtained from PSG and the pAHI gained from the watch-PAT were measured when not using CPAP and when using CPAP respectively. And also we examined whether the reduction rates of AHI and pAHI could be correlated.
Results
38 subjects (32 men, age 55 ± 13 years old). BMI 28.3 ± 5.7 kg / m2. When CPAP was not used, AHI was 57.2 ± 23.3 / h and pAHI was 50.8 ± 20.3 / h (r = 0.93, p < 0.0001), when CPAP was used, AHI was 5.2 ± 4.5 /h and pAHI was 6.2 ± 4.5 h (r = 0.82, p < 0.0001), AHI reduction rate was 90.4 ± 8.0% and pAHI reduction rate was 85.4 ± 14.6% (r = 0.76, p < 0.0001).
Conclusion
It was suggested that Watch-PAT had a good correlation with AHI at split night-sleep study.
Support
None
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Affiliation(s)
- T Adachi
- Sleep Medicine Center, Showa University East Hospital, Tokyo, JAPAN
| | - S Koba
- Department of Medicine, Division of Cardiology, Showa University School of Medicine, Tokyo, JAPAN
| | - A Hanyu
- Sleep Medicine Center, Showa University East Hospital, Tokyo, JAPAN
| | - M Kato
- Sleep Medicine Center, Showa University East Hospital, Tokyo, JAPAN
| | - M Morita
- Sleep Medicine Center, Showa University East Hospital, Tokyo, JAPAN
| | - T Kawamoto
- Sleep Medicine Center, Showa University East Hospital, Tokyo, JAPAN
| | - H Ida
- Sleep Medicine Center, Showa University East Hospital, Tokyo, JAPAN
| | - Y Watanabe
- Sleep Medicine Center, Showa University East Hospital, Tokyo, JAPAN
| | - T Shinke
- Department of Medicine, Division of Cardiology, Showa University School of Medicine, Tokyo, JAPAN
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Yamashita N, Morita M, Yokota H, Mimori-Kiyosue Y. Digital Spindle: A New Way to Explore Mitotic Functions by Whole Cell Data Collection and a Computational Approach. Cells 2020; 9:E1255. [PMID: 32438637 PMCID: PMC7291015 DOI: 10.3390/cells9051255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/15/2020] [Accepted: 05/17/2020] [Indexed: 02/06/2023] Open
Abstract
From cells to organisms, every living system is three-dimensional (3D), but the performance of fluorescence microscopy has been largely limited when attempting to obtain an overview of systems' dynamic processes in three dimensions. Recently, advanced light-sheet illumination technologies, allowing drastic improvement in spatial discrimination, volumetric imaging times, and phototoxicity/photobleaching, have been making live imaging to collect precise and reliable 3D information increasingly feasible. In particular, lattice light-sheet microscopy (LLSM), using an ultrathin light-sheet, enables whole-cell 3D live imaging of cellular processes, including mitosis, at unprecedented spatiotemporal resolution for extended periods of time. This technology produces immense and complex data, including a significant amount of information, raising new challenges for big image data analysis and new possibilities for data utilization. Once the data are digitally archived in a computer, the data can be reused for various purposes by anyone at any time. Such an information science approach has the potential to revolutionize the use of bioimage data, and provides an alternative method for cell biology research in a data-driven manner. In this article, we introduce examples of analyzing digital mitotic spindles and discuss future perspectives in cell biology.
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Affiliation(s)
- Norio Yamashita
- Image Processing Research Team, RIKEN Center for Advanced Photonics, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan; (N.Y.); (M.M.); (H.Y.)
| | - Masahiko Morita
- Image Processing Research Team, RIKEN Center for Advanced Photonics, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan; (N.Y.); (M.M.); (H.Y.)
| | - Hideo Yokota
- Image Processing Research Team, RIKEN Center for Advanced Photonics, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan; (N.Y.); (M.M.); (H.Y.)
| | - Yuko Mimori-Kiyosue
- Laboratory for Molecular and Cellular Dynamics, RIKEN Center for Biosystems Dynamics Research (BDR), 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
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Morita M, Shimokawa K, Nishimura M, Nakamura S, Tsujimura Y, Takemoto S, Tawara T, Yokota H, Wemler S, Miyamoto D, Ikeno H, Sato A, Furuichi T, Kobayashi N, Okumura Y, Yamaguchi Y, Okamura-Oho Y. ViBrism DB: an interactive search and viewer platform for 2D/3D anatomical images of gene expression and co-expression networks. Nucleic Acids Res 2020; 47:D859-D866. [PMID: 30371824 PMCID: PMC6324046 DOI: 10.1093/nar/gky951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 10/10/2018] [Indexed: 01/19/2023] Open
Abstract
Understanding anatomical structures and biological functions based on gene expression is critical in a systemic approach to address the complexity of the mammalian brain, where >25 000 genes are expressed in a precise manner. Co-expressed genes are thought to regulate cell type- or region-specific brain functions. Thus, well-designed data acquisition and visualization systems for profiling combinatorial gene expression in relation to anatomical structures are crucial. To this purpose, using our techniques of microtomy-based gene expression measurements and WebGL-based visualization programs, we mapped spatial expression densities of genome-wide transcripts to the 3D coordinates of mouse brains at four post-natal stages, and built a database, ViBrism DB (http://vibrism.neuroinf.jp/). With the DB platform, users can access a total of 172 022 expression maps of transcripts, including coding, non-coding and lncRNAs in the whole context of 3D magnetic resonance (MR) images. Co-expression of transcripts is represented in the image space and in topological network graphs. In situ hybridization images and anatomical area maps are browsable in the same space of 3D expression maps using a new browser-based 2D/3D viewer, BAH viewer. Created images are shareable using URLs, including scene-setting parameters. The DB has multiple links and is expandable by community activity.
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Affiliation(s)
- Masahiko Morita
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | - Kazuro Shimokawa
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi 980-8575, Japan
| | | | - Sakiko Nakamura
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | - Yuki Tsujimura
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | - Satoko Takemoto
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | - Takehiro Tawara
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | - Hideo Yokota
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | | | - Daisuke Miyamoto
- Graduate School of Engineering, The University of Tokyo, Meguro, Tokyo 153-0041, Japan
| | - Hidetoshi Ikeno
- School of Human Science and Environment, University of Hyogo, Himeji, Hyogo 670-0092, Japan
| | - Akira Sato
- Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Teiichi Furuichi
- Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Norio Kobayashi
- Head Office for Information Systems and Cybersecurity, RIKEN, Wako, Saitama 351-0198, Japan
| | | | - Yoko Yamaguchi
- RIKEN Center for Brain Science, Wako, Saitama 351-0198, Japan
| | - Yuko Okamura-Oho
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan.,Faculty of Human Life Science, Jissen Women's University, Hino, Tokyo 191-8510, Japan
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Saito H, Tanimoto T, Kami M, Suzuki Y, Morita T, Morita M, Yamamoto K, Shimada Y, Tsubokura M, Endo M. New physician specialty training system impact on distribution of trainees in Japan. Public Health 2020; 182:143-150. [PMID: 32305513 DOI: 10.1016/j.puhe.2020.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 01/13/2020] [Accepted: 02/07/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The problem of uneven distribution of medical services and inequitable distribution of physicians is drawing much attention worldwide. Revealing how changes in the specialty training system in Japan have affected the distribution of doctors could help us understand this problem. In 2018, a new and standardized specialty training system was implemented by the Japanese Medical Specialty Board, which is recognized by the Ministry of Health, Labor and Welfare. The purpose of this study was to investigate how this new system has affected the geographical distribution of doctors commencing specialty training (trainees) and choice of specialty in Japan. STUDY DESIGN Retrospective observational study. METHODS The change in the number of trainees between the control period (2012-2014) and 2018 was investigated, taking into account the prefecture and specialty selected. Population, the proportion of residents aged 65 years or older (aging rate), and the total number of overall doctors in each prefecture were considered as the background characteristics of each prefecture. We created a Lorenz curve and calculated the Gini coefficient for the distribution of trainees. RESULTS In 2018, the number of trainees per 100,000 population increased to 6.6 nationwide compared with 5.5 during the control period. The number of trainees per 100,000 population in 2018 increased in prefectures with a large population of ≧ 2,000,000, a low aging rate (<27%), and a high doctor density (≧ 250 doctors per 100,000 population). The Gini coefficient showed an increase to 0.226 in 2018 compared with only 0.160 during the control period. CONCLUSIONS After the implementation of the new training system, there was an increase in the number of doctors enrolling in specialty programs, and the specialties other than internal medicine and surgery have attracted more trainees. Inequality in the distribution of doctors between urban and rural prefectures worsened. This indicates the need to explore new ways of balancing distribution while maintaining optimal opportunities for specialist training.
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Affiliation(s)
- H Saito
- Department of Gastroenterology, Sendai Kousei Hospital, Sendai, Miyagi, Japan.
| | - T Tanimoto
- Department of Internal Medicine, Navitas Clinic, Tachikawa, Tokyo, Japan
| | - M Kami
- Medical Governance Research Institute, Minato-ku, Tokyo, Japan
| | - Y Suzuki
- Department of Obstetrics and Gynecology, Tone Central Hospital, Numata, Gunma, Japan
| | - T Morita
- Department of Internal Medicine, Soma Central Hospital, Soma, Fukushima, Japan
| | - M Morita
- Medical Governance Research Institute, Minato-ku, Tokyo, Japan
| | - K Yamamoto
- Medical Governance Research Institute, Minato-ku, Tokyo, Japan
| | - Y Shimada
- Department of Neurosurgery, Minamisoma Municipal General Hospital, Minamisoma, Fukushima, Japan
| | - M Tsubokura
- Department of Internal Medicine, Soma Central Hospital, Soma, Fukushima, Japan
| | - M Endo
- Support Office for Medical Education and Trainings, Sendai Kousei Hospital, Sendai, Miyagi, Japan
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22
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Jayadeva P, Vitola J, Cerci R, Yao J, Stowers S, Morita M, Westcott J, Zier S, Elison B, Better N. 416 The Impact of Coronary Calcium Score as an Addition to Myocardial Perfusion Imaging in Altering Clinical Management (ICCAMPA Trial). Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Morita M, Nakamura A, Tanaka H, Saito R, Inoue S, Harada T, Yamada T, Nakagawa T, Jingu D, Sugawara S. Phase II study of low-dose afatinib maintenance treatment for patients with EGFR-mutated non-small cell lung cancer (NJLCG1601). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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24
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Kawachi H, Tamiya M, Tamiya A, Ishii S, Hirano K, Matsumoto H, Yokoyama T, Ishida T, Ryota K, Fujimoto D, Hosoya K, Suzuki H, Hirashima T, Kanazu M, Sawa N, Uchida J, Morita M, Makio T, Hara S, Kumagai T. Prognostic impact of metastatic sites for pembrolizumab efficacy as first-line therapy in patients with PD-L1 tumour proportion score (TPS) ≥ 50% advanced non-small cell lung cancer: A retrospective multicenter study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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25
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Tanaka H, Miyauchi E, Nakamura A, Harada T, Nakagawa T, Morita M, Jingu D, Tomoya K, Gamou S, Saito R, Inoue A. EP1.01-04 Phase I/II Trial of Biweekly Nab-Paclitaxel in Patients with Previously Treated Advanced Non-Small Cell Lung Cancer: NJLCG1402. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Ono H, Horinaka M, Yasuda S, Morita M, Nishimoto E, Sakai T. A novel RAF/MEK inhibitor CH5126766 in phase I clinical trial has an effectiveness in the combination with eribulin for the treatment of triple negative breast cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz268.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Sakaguchi K, Nakatsukasa K, Koyama H, Matsuda T, Kato M, Ouchi Y, Morita M, Taguchi T. Effect of denosumab on low bone mineral density in postmenopausal Japanese early breast cancer patients receiving aromatase nhibitors: 36-month results. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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28
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Tamiya M, Tamiya A, Hosoya K, Taniguchi Y, Yokoyama T, Fukuda Y, Hirano K, Matsumoto H, Kominami R, Suzuki H, Hirashima T, Uchida J, Morita M, Kanazu M, Sawa N, Hara S, Kinoshita Y, Kumagai T, Fujimoto D. The efficacy and safety of pembrolizumab as a first-line therapy in PD-L1 50% positive advanced NSCLC (HOPE-001). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Hayata E, Nakata M, Oji A, Takano M, Nagasaki S, Morita M. Sonographic diagnosis of vasa previa using four-dimensional spatiotemporal image correlation. Ultrasound Obstet Gynecol 2019; 53:701-702. [PMID: 29808626 DOI: 10.1002/uog.19100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Affiliation(s)
- E Hayata
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - M Nakata
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - A Oji
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - M Takano
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - S Nagasaki
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - M Morita
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
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Furutate M, Fujii Y, Morita H, Morita M. Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two. Front Neurosci 2019; 13:35. [PMID: 30814924 PMCID: PMC6381064 DOI: 10.3389/fnins.2019.00035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 01/15/2019] [Indexed: 11/13/2022] Open
Abstract
In the human visual system, different attributes of an object are processed separately and are thought to be then temporarily bound by attention into an integrated representation to produce a specific response. However, if such representations existed in the brain for arbitrary multi-attribute objects, a combinatorial explosion problem would be unavoidable. Here, we show that attention may bind features of different attributes only in pairs and that bound feature pairs, rather than integrated object representations, are associated with responses for unfamiliar objects. We found that in a mapping task from three-attribute stimuli to responses, presenting three attributes in pairs (two attributes in each window) did not significantly complicate feature integration and response selection when the stimuli were not very familiar. We also found that repeated presentation of the same triple conjunctions significantly improved performance on the stimulus-response task when the correct responses were determined by the combination of three attributes, but this familiarity effect was not observed when the response could be determined by two attributes. These findings indicate that integration of three or more attributes is a distinct process from that of two, requiring long-term learning or some serial process. This suggests that integrated object representations are not formed or are formed only for a limited number of very familiar objects, which resolves the computational difficulty of the binding problem.
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Affiliation(s)
- Mizuki Furutate
- Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Japan
| | - Yumiko Fujii
- Graduate School of Library, Information and Media Studies, University of Tsukuba, Tsukuba, Japan
| | - Hiromi Morita
- Faculty of Library, Information and Media Science, University of Tsukuba, Tsukuba, Japan
| | - Masahiko Morita
- Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, Japan
- *Correspondence: Masahiko Morita,
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Kuroboshi M, Morita M, Masumoto Y, Mikasa M, Toza R, Tanaka H. Synthesis of Aminated Cyclotriphosphazenes. Solvent Effects on the Product-Selectivity of the Amination. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Kurebe H, Edahiro R, Kanazu M, Fujimoto D, Tamiya M, Tamiya A, Suzuki H, Hirano K, Yokoyama T, Morita M, Fukuda Y, Uchida J, Makio T. Clinical outcomes in non–small cell lung cancer patients with ultra-high expression of programmed death ligand-1 treated with pembrolizumab as first-line therapy: A retrospective multicenter cohort study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy425.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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33
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Roberts VHJ, Morgan TK, Bednarek P, Morita M, Burton GJ, Lo JO, Frias AE. Early first trimester uteroplacental flow and the progressive disintegration of spiral artery plugs: new insights from contrast-enhanced ultrasound and tissue histopathology. Hum Reprod 2018; 32:2382-2393. [PMID: 29136193 DOI: 10.1093/humrep/dex301] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 09/12/2017] [Indexed: 01/05/2023] Open
Abstract
STUDY QUESTION Does the use of a vascular contrast agent facilitate earlier detection of maternal flow to the placental intervillous space (IVS) in the first trimester of pregnancy? SUMMARY ANSWER Microvascular filling of the IVS was demonstrated by contrast-enhanced ultrasound from 6 weeks of gestation onwards, earlier than previously believed. WHAT IS KNOWN ALREADY During placental establishment and remodeling of maternal spiral arteries, endovascular trophoblast cells invade and accumulate in the lumen of these vessels to form 'trophoblast plugs'. Prior evidence from morphological and Doppler ultrasound studies has been conflicting as to whether the spiral arteries are completely plugged, preventing maternal blood flow to the IVS until late in the first trimester. STUDY DESIGN, SIZE, DURATION Uteroplacental flow was examined across the first trimester in human subjects given an intravenous infusion of lipid-shelled octofluoropropane microbubbles with ultrasound measurement of destruction and replenishment kinetics. We also performed a comprehensive histopathological correlation using two separately archived uteroplacental tissue collections to evaluate the degree of spiral artery plugging and evaluate remodeling of the upstream myometrial radial and arcurate arteries. PARTICIPANTS/MATERIALS, SETTING, METHODS Pregnant women (n = 34) were recruited in the first trimester (range: 6+3 to 13+6 weeks gestation) for contrast-enhanced ultrasound studies with destruction-replenishment analysis of signal intensity for assessment of microvascular flux rate. Histological samples from archived in situ (Boyd Collection, n = 11) and fresh first, second, and third trimester decidual and post-hysterectomy uterine specimens (n = 16) were evaluated by immunohistochemistry (using markers of epithelial, endothelial and T-cells, as well as cell adhesion and proliferation) and ultrastructural analysis. MAIN RESULTS AND THE ROLE OF CHANCE Contrast agent entry into the IVS was visualized as early as 6+3 weeks of gestation with some variability in microvascular flux rate noted in the 6-7+6 week samples. Spiral artery plug canalization was observed from 7 weeks with progressive disintegration thereafter. Of note, microvascular flux rate did not progressively increase until 13 weeks, which suggests that resistance to maternal flow in the early placenta may be mediated more proximally by myometrial radial arteries that begin remodeling at the end of the first trimester. LIMITATIONS REASONS FOR CAUTION Gestational age was determined by crown-rump length measurements obtained by transvaginal ultrasound on the day of contrast-enhanced imaging studies, which may explain the variability in the earliest gestational age samples due to the margin of error in this type of measurement. WIDER IMPLICATIONS OF THE FINDINGS Our comprehensive in situ histological analysis, in combination with the use of an in vivo imaging modality that has the sensitivity to permit visualization of microvascular filling, has allowed us to reveal new evidence in support of increasing blood flow to the IVS from 6 weeks of gestation. Histologic review suggested the mechanism may be blood flow through capillary-sized channels that form through the loosely cohesive 'plugs' by 7 weeks gestation. However, spiral artery remodeling on its own did not appear to explain why there is significantly more blood flow at 13 weeks gestation. Histologic studies suggest it may be related to radial artery remodeling, which begins at the end of the first trimester. STUDY FUNDING/COMPETING INTEREST(S) This project was supported by the Oregon Health and Science University Knight Cardiovascular Institute, Center for Developmental Health and the Struble Foundation. There are no competing interests.
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Affiliation(s)
- V H J Roberts
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA
| | - T K Morgan
- Department of Pathology, Oregon Health and Science University, Portland, OR 97239, USA.,Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR 97239, USA
| | - P Bednarek
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR 97239, USA
| | - M Morita
- Department of Pathology, Oregon Health and Science University, Portland, OR 97239, USA
| | - G J Burton
- Centre for Trophoblast Research and Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2 3EG, UK
| | - J O Lo
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR 97239, USA
| | - A E Frias
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA.,Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR 97239, USA
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Hosoya K, Fujimoto D, Tamiya M, Tamiya A, Suzuki H, Hirano K, Yokoyama T, Morita M, Fukuda Y, Kanazu M, Makio T. Association between early immune-related adverse events and clinical outcomes in patients with advanced non-small cell lung cancer treated with pembrolizumab as first-line therapy: A retrospective multicenter cohort study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Morita M, Nakao M, Matsuda T. Elastic modulus estimation based on local displacement observation of elastic body. Annu Int Conf IEEE Eng Med Biol Soc 2018; 2017:2138-2141. [PMID: 29060319 DOI: 10.1109/embc.2017.8037277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A method is proposed that provides estimates of the spatial variation of elastic moduli using local displacements of the elastic body. A central issue of elastography imaging has been the limited area of measurement. With the proposed method, stiffness parameter estimations are considered as minimization problems using finite-element models. The sparseness of the gradient of tissue elasticity is also exploited to improve estimation accuracy. Simulation experiments show that based on a 5% area of observation of a simple plate model with non-uniform elasticity the spatial variation of Young's modulus is reconstructed to within 5% accuracy. This result suggests that the proposed framework significantly extends the area of estimation overcoming the limitations of conventional elastography techniques.
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Takano M, Nakata M, Nagasaki S, Ueyama R, Morita M. Assessment of diastolic function of normal fetal heart using dual-gate Doppler. Ultrasound Obstet Gynecol 2018; 52:238-242. [PMID: 28741751 DOI: 10.1002/uog.18821] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/09/2017] [Accepted: 07/14/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES The ratio of mitral peak early diastolic filling to early diastolic mitral annular velocity (E/e') reflects diastolic cardiac function in adults. Dual-gate Doppler (DD) enables measurements of E/e' in the same heart beat. This study was designed to assess the utility of the DD method for measurement of fetal E/e' and determine reference ranges for normal fetuses. METHODS This prospective study comprised normal singleton pregnancies undergoing fetal echocardiography between 16 and 36 weeks of gestation. According to the DD method, E-wave velocity on pulsed-wave Doppler and e'-wave on tissue Doppler imaging were measured simultaneously on an apical or basal four-chamber view, and fetal E/e' was calculated. Spearman's correlation coefficient was used to assess the relationship between gestational age (GA) and E-wave and e'-wave velocities and E/e'. RESULTS A total of 133 pregnancies were included in this study and all E/e' measurements were successful. Significant correlation was observed between GA and both left ventricular (LV) E/e' (r s = -0.666, P < 0.001) and right ventricular (RV) E/e' (r s = -0.607, P < 0.001). The regression equations for bilateral E/e' were: LV-E/e' = 17.341 - 0.631GA + 0.008 × GA2 (mean ± SD, R 2 = 0.440 ± 1.333); and RV-E/e' = 19.156 - 0.794GA + 0.012GA2 (R 2 = 0.419 ± 1.329). CONCLUSIONS Bilateral E/e' of normal fetuses, measured using the DD method, decreased with GA, which is considered to be related to myocardial maturity. DD is a useful and convenient method for evaluating fetal E/e' in order to assess diastolic function in the prenatal period. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- M Takano
- Department of Obstetrics and Gynecology, Toho University Graduate School of Medicine, Tokyo, Japan
| | - M Nakata
- Department of Obstetrics and Gynecology, Toho University Graduate School of Medicine, Tokyo, Japan
- Department of Obstetrics and Gynecology, Toho University Omori Medical Center, Tokyo, Japan
| | - S Nagasaki
- Department of Obstetrics and Gynecology, Toho University Graduate School of Medicine, Tokyo, Japan
- Department of Obstetrics and Gynecology, Toho University Omori Medical Center, Tokyo, Japan
| | - R Ueyama
- Department of Obstetrics and Gynecology, Toho University Graduate School of Medicine, Tokyo, Japan
| | - M Morita
- Department of Obstetrics and Gynecology, Toho University Graduate School of Medicine, Tokyo, Japan
- Department of Obstetrics and Gynecology, Toho University Omori Medical Center, Tokyo, Japan
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Hwang P, Morales Marroquín FE, Gann J, Andre T, McKinley-Barnard S, Kim C, Morita M, Willoughby DS. Eight weeks of resistance training in conjunction with glutathione and L-Citrulline supplementation increases lean mass and has no adverse effects on blood clinical safety markers in resistance-trained males. J Int Soc Sports Nutr 2018; 15:30. [PMID: 29945625 PMCID: PMC6020314 DOI: 10.1186/s12970-018-0235-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 06/22/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Supplementation of combined glutathione (GSH) with L-citrulline in response to a single bout of resistance exercise has been shown to increase plasma nitric oxide metabolites, nitrite and nitrate and cyclic guanosine monophosphate (cGMP), which may play a role in muscle protein synthesis. As a result, in response to resistance training (RT) these responses may establish a role for GSH + L-citrulline to increase muscle mass. This study attempted to determine the effects of an 8-week RT program in conjunction with GSH (Setria®) + L-citrulline, L-citrulline-malate, or placebo supplementation on lean mass and its association with muscle strength. The secondary purpose was to assess the safety of such supplementation protocol by assessing clinical chemistry markers. METHODS In a randomized, double-blind, placebo-controlled design, 75 resistance-trained males were randomly assigned to ingest GSH + L-citrulline (GSH + CIT), L-citrulline-malate, or cellulose placebo daily while also participating in 8 weeks of RT. The full dose of each supplement was delivered in capsules that were identical in weight, size, shape, and color. Participants completed testing sessions for body composition and muscle strength before and after 4 and 8 weeks of RT and supplementation. Venous blood samples were obtained before and after 8 weeks. RESULTS Leg press was increased with RT but was not significantly different between groups (p > 0.05); however, bench press strength was not increased with RT (p > 0.05). There were no significant changes in total body mass, fat mass, or total body water during 8 weeks of RT and supplementation. Lean mass increased in both GSH + CIT when compared to PLC; however, the increase was significant only after 4 weeks. Lean mass and strength were positively correlated (p < 0.05) in GSH + CIT, but not CIT-malate or PLC. Neither RT nor supplementation had any significant effects on blood clinical chemistry variables (p > 0.05). CONCLUSION Compared to PLC, supplementation of GSH + CIT during resistance training increased lean mass after 4 weeks of RT and was positively associated with muscle strength. However, after 8 weeks of RT there were no significant differences in any of the measured variables.
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Affiliation(s)
- Paul Hwang
- Exercise and Biochemical Nutritional Lab, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
| | - Flor E Morales Marroquín
- Exercise and Biochemical Nutritional Lab, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
| | - Josh Gann
- Department of Kinesiology, University of Louisiana Monroe, Monroe, LA, USA
| | - Tom Andre
- Department of Health, Exercise Science, and Recreation Management, University of Mississippi, University, MS, USA
| | | | - Caelin Kim
- Exercise and Biochemical Nutritional Lab, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA
| | - Masahiko Morita
- Function Research Group, Healthcare Products Development Center, Kyowa Hakko Bio Co., Ltd., 2, Miyukigaoka, Tsukuba, Ibaraki, Japan
| | - Darryn S Willoughby
- Exercise and Biochemical Nutritional Lab, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX, USA.
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Sasaki K, Sasaki D, Tsuge Y, Morita M, Kondo A. Changes in the microbial consortium during dark hydrogen fermentation in a bioelectrochemical system increases methane production during a two-stage process. Biotechnol Biofuels 2018; 11:173. [PMID: 29977334 PMCID: PMC6013992 DOI: 10.1186/s13068-018-1175-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/15/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Bioelectrochemical systems (BESs) are an innovative technology developed to influence conventional anaerobic digestion. We examined the feasibility of applying a BES to dark hydrogen fermentation and its effects on a two-stage fermentation process comprising hydrogen and methane production. The BES used low-cost, low-reactivity carbon sheets as the cathode and anode, and the cathodic potential was controlled at - 1.0 V (vs. Ag/AgCl) with a potentiostat. The operation used 10 g/L glucose as the major carbon source. RESULTS The electric current density was low throughout (0.30-0.88 A/m2 per electrode corresponding to 0.5-1.5 mM/day of hydrogen production) and water electrolysis was prevented. At a hydraulic retention time of 2 days with a substrate pH of 6.5, the BES decreased gas production (hydrogen and carbon dioxide contents: 52.1 and 47.1%, respectively), compared to the non-bioelectrochemical system (NBES), although they had similar gas compositions. In addition, a methane fermenter (MF) was applied after the BES, which increased gas production (methane and carbon dioxide contents: 85.1 and 14.9%, respectively) compared to the case when the MF was applied after the NBES. Meta 16S rRNA sequencing revealed that the BES accelerated the growth of Ruminococcus sp. and Veillonellaceae sp. and decreased Clostridium sp. and Thermoanaerobacterium sp., resulting in increased propionate and ethanol generation and decreased butyrate generation; however, unknowingly, acetate generation was increased in the BES. CONCLUSIONS The altered redox potential in the BES likely transformed the structure of the microbial consortium and metabolic pattern to increase methane production and decrease carbon dioxide production in the two-stage process. This study showed the utility of the BES to act on the microbial consortium, resulting in improved gas production from carbohydrate compounds.
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Affiliation(s)
- Kengo Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Daisuke Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501 Japan
| | - Yota Tsuge
- Institute for Frontier Science Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192 Japan
| | - Masahiko Morita
- Environmental Chemistry Sector, Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko-shi, Chiba-ken 270-1194 Japan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501 Japan
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan
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Morita T, Tanimoto T, Morita M, Tsubokura M, Kami M. Trend in unequal geographical distribution of doctors by age and sex in Japan from 2004 to 2014. Public Health 2018; 159:95-98. [PMID: 29567009 DOI: 10.1016/j.puhe.2018.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/29/2018] [Accepted: 02/04/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVES In Japan, the proportion of female doctors and elderly doctors is increasing as in other countries. We investigated the relationship between doctors' demographic changes and their geographical distribution. STUDY DESIGN A national database study. METHODS We assessed trends in unequal geographical distribution of the number of doctors by sex and age from 2004 to 2014 in Japan. RESULTS The Gini coefficient values for the number of female doctors (0.18) were larger than those for male doctors across all generations (0.13-0.14). The Gini coefficient values for the number of elderly doctors aged 60 years and older (male: 0.12, female: 0.18-0.23) were larger than those for majority age groups aged 40-59 years (male: 0.10, female: 0.16-0.17). CONCLUSION The persisting geographical maldistribution of doctors may be associated with demographic changes, such as increase in the number of female doctors.
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Affiliation(s)
- T Morita
- Internal Medicine, Soma Central Hospital, Soma, Fukushima 976-0016, Japan.
| | - T Tanimoto
- Navitas Clinic, Tachikawa, Tokyo 190-0023, Japan
| | - M Morita
- Anesthesiology, Minamisoma Municipal General Hospital, Minamisoma, Fukushima 975-0033, Japan
| | - M Tsubokura
- Internal Medicine, Soma Central Hospital, Soma, Fukushima 976-0016, Japan
| | - M Kami
- Medical Governance Research Institute, Minato-ku, Tokyo 108-0074, Japan
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Kobayashi K, Morita M, Ito S, Inoue Y, Yamaguchi I, Kosaka T, Kuba S, Sakimura C, Soyama A, Adachi T, Ohno S, Kobayashi S, Hara T, Hidaka M, Hayashida N, Yamanouchi K, Kanetaka K, Takatsuki M, Eguchi S. S-1 and CPT-11 plus ramucirumab (IRIS+Rmab) as second-line chemotherapy for patients with oxaliplatin-refractory metastatic colorectal cancer: A multicenter phase II study in Japan (N-DOCC-F-C-1701). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx659.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ikeda S, Yoshioka H, Ikeo S, Morita M, Sone N, Niwa T, Nishiyama A, Yokoyama T, Sekine A, Ogura T, Ishida T. P2.01-001 Serum Albumin Level Predicts the Survival Benefit of Chemotherapy in Elderly Advanced NSCLC Patients with Poor Performance Status. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Suzuki M, Terashi H, Mitoma H, Yogo M, Morita M. Kinetic parameters improved by L-DOPA in de novo patients with Parkinson’s disease: A study using a long-term wearing device. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Atsuta N, Yokoi D, Nakamura R, Watanabe H, Hayashi N, Ito M, Watanabe H, Katsuno M, Izumi Y, Morita M, Taniguchi A, Oda M, Abe K, Mizoguchi K, Kano O, Kuwabara S, Aoki M, Hattori N, Kaji R, Sobue G. Prognosis of japanese patients with amyotrophic lateral sclerosis according to motor phenotype. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ishihara T, Toyoda S, Koyama A, Tada M, Atsuta N, Nakamura R, Tohnai G, Sone J, Izumi Y, Kaji R, Morita M, Taniguchi A, Kakita A, Sobue G, Nishizawa M, Onodera O. The SMN gene copy number states in Japanese ALS patients. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Naoi T, Morita M, Kawakami T, Fujimoto S. Various ophthalmological findings and possible underlying mechanisms in patients with brainstem and thalamic infarction. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yokoi D, Atsuta N, Hirakawa A, Nakamura R, Watanabe H, Hayashi N, Ito M, Watanabe H, Katsuno M, Izumi Y, Morita M, Taniguchi A, Oda M, Abe K, Mizoguchi K, Kano O, Kuwabara S, Kaji R, Sobue G. The effect of noninvasive positive pressure ventilation in amyotrophic lateral sclerosis patients from a Japanese multicenter prospective cohort. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Uchida H, Nakajima Y, Ohtake K, Ito J, Morita M, Kamimura A, Kobayashi J. Protective effects of oral glutathione on fasting-induced intestinal atrophy through oxidative stress. World J Gastroenterol 2017; 23:6650-6664. [PMID: 29085210 PMCID: PMC5643286 DOI: 10.3748/wjg.v23.i36.6650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 07/14/2017] [Accepted: 07/24/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To determine whether oral glutathione (GSH) administration can alleviate the effects of fasting-induced intestinal atrophy in the small intestinal mucosa.
METHODS Rats were divided into eight groups. One group was fed ad libitum, another was fed ad libitum and received oral GSH, and six groups were administrated saline (SA) or GSH orally during fasting. Mucosal height, apoptosis, and cell proliferation in the jejunum were histologically evaluated. iNOS protein expression (by immunohistochemistry), nitrite levels (by high performance liquid chromatography, as a measure of NO production), 8-hydroxydeoxyguanosine formation (by ELISA, indicating ROS levels), glutathione/oxidized glutathione (GSH/GSSG) ratio (by enzymatic colorimetric detection), and γ-glutamyl transpeptidase (Ggt1) mRNA levels in the jejunum (by semi-quantitative RT-PCR) were also estimated.
RESULTS Oral GSH administration was demonstrated to drastically reduce fasting-induced intestinal atrophy in the jejunum. In particular, jejunal mucosal height was enhanced in GSH-treated animals compared to SA-treated animals [527.2 ± 6.9 for 50 mg/kg GSH, 567.6 ± 5.4 for 500 mg/kg GSH vs 483.1 ± 4.9 (μm), P < 0.01 at 72 h]. This effect was consistent with decreasing changes in GSH-treated animals compared to SA-treated animals for iNOS protein staining [0.337 ± 0.016 for 50 mg/kg GSH, 0.317 ± 0.017 for 500 mg/kg GSH vs 0.430 ± 0.023 (area of staining part/area of tissue), P < 0.01 at 72 h] and NO [2.99 ± 0.29 for 50 mg/kg GSH, 2.88 ± 0.19 for 500 mg/kg GSH vs 5.34 ± 0.35 (nmol/g tissue), P < 0.01 at 72 h] and ROS [3.92 ± 0.46 for 50 mg/kg GSH, 4.58 ± 0.29 for 500 mg/kg GSH vs 6.42 ± 0.52 (8-OHdG pg/μg DNA), P < 0.01, P < 0.05 at 72 h, respectively] levels as apoptosis mediators in the jejunum. Furthermore, oral GSH administration attenuated cell proliferation decreases in the fasting jejunum [182.5 ± 1.9 for 500 mg/kg GSH vs 155.8 ± 3.4 (5-BrdU positive cells/10 crypts), P < 0.01 at 72 h]. Notably, both GSH concentration and Ggt1 mRNA expression in the jejunum were also attenuated in rats following oral administration of GSH during fasting as compared with fasting alone [0.45 ± 0.12 vs 0.97 ± 0.06 (nmol/mg tissue), P < 0.01; 1.01 ± 0.11 vs 2.79 ± 0.39 (Ggt1 mRNA/Gapdh mRNA), P < 0.01 for 500 mg/kg GSH at 48 h, respectively].
CONCLUSION Oral GSH administration during fasting enhances jejunal regenerative potential to minimize intestinal mucosal atrophy by diminishing fasting-mediated ROS generation and enterocyte apoptosis and enhancing cell proliferation.
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Affiliation(s)
- Hiroyuki Uchida
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Yukari Nakajima
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Kazuo Ohtake
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Junta Ito
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Masahiko Morita
- Kyowa Hakko Bio Co., Ltd. Healthcare Products Development Center, Tsukuba-shi, Ibaraki 305-0841, Japan
| | - Ayako Kamimura
- Kyowa Hakko Bio Co., Ltd. Healthcare Products Development Center, Tsukuba-shi, Ibaraki 305-0841, Japan
| | - Jun Kobayashi
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
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Tsukagoshi Y, Kamegaya M, Kamada H, Saisu T, Morita M, Kakizaki J, Tomaru Y, Yamazaki M. The correlation between Salter's criteria for avascular necrosis of the femoral head and Kalamchi's prognostic classification following the treatment of developmental dysplasia of the hip. Bone Joint J 2017; 99-B:1115-1120. [PMID: 28768791 DOI: 10.1302/0301-620x.99b8.bjj-2016-1070.r1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/18/2017] [Indexed: 12/31/2022]
Abstract
AIMS The aim of this study was to evaluate the correlation between Salter's criteria and Kalamchi's classification of avascular necrosis in patients treated for developmental dysphasia of the hip (DDH). PATIENTS AND METHODS The study involved a retrospective analysis of 123 patients (123 hips) with DDH treated by operative and non-operative reduction before the age of two years, with a minimum follow-up of ten years. Salter's criteria (S1 to S4) were determined from radiographs obtained at one to two years post-reduction, whilst the Kalamchi grade was determined from radiographs obtained at ten or more years of age. Early post-reduction radiographs were also used to evaluate the centre-head distance discrepancy (CHDD) and the occurrence of a dome-shaped deformity of the proximal femoral metaphysis (D-shaped metaphysis). The prognosis was described as good (Kalamchi grade K0 or KI), fair (Kalamchi grade KII) or poor (Kalamchi grade KIII or KIV) for analysis and correlation with the early Salter criteria, CHDD and D-shaped metaphysis. RESULTS S1 and S2 criteria were predictive of a poor prognosis. The outcome following S3, S4 and S3 + S4 varied; 18 (40%) had a good prognosis, 17 (38%) a fair prognosis and ten (22%) a poor prognosis. A CHDD ≥ 10% and a D-shaped metaphysis were also predictive of a poor prognosis. CONCLUSION The Salter criteria were predictive of the Kalamchi grade of avascular necrosis in patients with DDH aged ten or more years after reduction of the hip. Cite this article: Bone Joint J 2017;99-B:1115-20.
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Affiliation(s)
- Y Tsukagoshi
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - M Kamegaya
- Chiba Child & Adult Orthopaedic Clinic (Chiba Pediatric Orthopaedic Group), 3-24-2, Oyumino-Minami, Midori-ku, Chiba-city, Chiba, 266-0033, Japan
| | - H Kamada
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - T Saisu
- Chiba Children's Hospital (Chiba Pediatric Orthopaedic Group), 579-1, Heta-cho, Midori-ku, Chiba-city, Chiba, 266-0077, Japan
| | - M Morita
- Chiba Child & Adult Orthopaedic Clinic (Chiba Pediatric Orthopaedic Group), 3-24-2, Oyumino-Minami, Midori-ku, Chiba-city, Chiba, 266-0033, Japan
| | - J Kakizaki
- Chiba Children's Hospital (Chiba Pediatric Orthopaedic Group), 579-1, Heta-cho, Midori-ku, Chiba-city, Chiba, 266-0077, Japan
| | - Y Tomaru
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - M Yamazaki
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Otani T, Matsuoka R, Morita M, Natsukawa T, Sawano H, Hayashi Y. 342Duration for attaining favourable neurological outcome in refractory out-of-hospital cardiac arrest patients who were resuscitated with veno-arterial extracorporeal membrane oxygenation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Otani T, Matsuoka R, Morita M, Natsukawa T, Sawano H, Hayashi Y. P2751D-dimer levels on admission predict a bleeding complication in out-of-hospital cardiac arrest patients resuscitated with extracorporeal membrane oxygenation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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