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Sawant N, Watanabe A, Ueda H, Okano H, Morita M. Incomplete accumulation of perilesional reactive astrocytes exacerbates wound healing after closed-head injury by increasing inflammation and BBB disruption. Exp Neurol 2024; 374:114700. [PMID: 38272160 DOI: 10.1016/j.expneurol.2024.114700] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 01/27/2024]
Abstract
Wound healing after closed-head injury is a significant medical issue. However, conventional models of focal traumatic brain injury, such as fluid percussion injury and controlled cortical impact, employ mechanical impacts on the exposed cerebral cortex after craniotomy. These animal models are inappropriate for studying gliosis, as craniotomy itself induces gliosis. To address this, we developed a closed-head injury model and named "photo injury", which employs intense light illumination through a thinned-skull cranial window. Our prior work demonstrated that the gliosis of focal cerebral lesion after the photo injury does not encompass artificial gliosis and comprises two distinct reactive astrocyte subpopulations. The reactive astrocytes accumulated in the perilesional recovery area actively proliferate and express Nestin, a neural stem cell marker, while those in distal regions do not exhibit these traits. The present study investigated the role of perilesional reactive astrocytes (PRAs) in wound healing using the ablation of reactive astrocytes by the conditional knockout of Stat3. The extensive and non-selective ablation of reactive astrocytes in Nestin-Cre:Stat3f/f mice resulted in an exacerbation of injury, marked by increased inflammation and BBB disruption. On the other hand, GFAP-CreERT2:Stat3f/f mice exhibited the partial and selective ablation of the PRAs, while their exacerbation of injury was at the same extent as in Nestin-Cre:Stat3f/f mice. The comparison of these two mouse strains indicates that the PRAs are an essential astrocyte component for wound healing after closed-head injury, and their anti-inflammatory and regenerative functions are significantly affected even by incomplete accumulation. In addition, the reporter gene expression in the PRAs by GFAP-CreERT2 indicated a substantial elimination of these cells and an absence of differentiation into other cell types, despite Nestin expression, after wound healing. Thus, the accumulation and subsequent elimination of PRA are proposed as promising diagnostic and therapeutic avenues to bolster wound healing after closed-head injury.
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Affiliation(s)
- Nitin Sawant
- Biomolecular Organization, Department of Biology, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Airi Watanabe
- Biomolecular Organization, Department of Biology, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Haruna Ueda
- Biomolecular Organization, Department of Biology, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Mitsuhiro Morita
- Biomolecular Organization, Department of Biology, Kobe University, Kobe, Hyogo 657-8501, Japan; Application Division, Center of Optical Scattering Image Science, Kobe University, Kobe, Hyogo 657-8501, Japan.
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Watanabe A, Tomioka Y, Okata Y, Yoshimura S, Kumode S, Iwabuchi S, Kameoka Y, Takanarita Y, Uemura K, Samejima Y, Kawasaki Y, Bitoh Y. Cholelithiasis prevalence and risk factors in individuals with severe or profound intellectual and motor disabilities. J Intellect Disabil Res 2024; 68:317-324. [PMID: 38183322 DOI: 10.1111/jir.13113] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 01/08/2024]
Abstract
BACKGROUND The prevalence and risk factors of cholelithiasis in individuals with severe or profound intellectual and motor disabilities (SPIMD) are poorly characterised. Thus, we aimed to investigate the prevalence and risk determinants of cholelithiasis in a cohort with SPIMD under medical care in a residential facility. METHODS We categorised 84 patients in a residential hospital for persons with SPIMD into groups: those with (Group CL) and without (Group N) cholelithiasis. Gallstones were detected via computed tomography, ultrasonography or both. We evaluated gastrostomy status, nutritional and respiratory support, constipation, and bladder and kidney stones. Data were significantly analysed using univariate and multivariate logistic regression analyses. RESULTS The prevalence rate of cholelithiasis in our SPIMD cohort was 27%. There were no significant differences in sex, age, weight, height, or Gross Motor Function Classification System between the two groups. However, more patients received enteral nutrition (39.13% vs. 6.56%; P = 0.000751) and were on ventilator support (56.52% vs. 19.67%; P = 0.00249) in Group CL than in Group N. Enteral nutrition [odds ratio (OR) 10.4, 95% confidence interval (CI) 1.98-54.7] and ventilator support (OR 20.0, 95% CI 1.99-201.0) were identified as independent risk factors for the prevalence of cholelithiasis in patients with SPIMD. CONCLUSIONS Patients with SPIMD demonstrated an increased prevalence of cholelithiasis, with a notable association between nutritional tonic use and respiratory support. Therefore, to emphasise the need for proactive screening, it is crucial to devise diagnostic and therapeutic strategies specific to patients with SPIMD. Further investigation is essential to validate our findings and explore causative factors.
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Affiliation(s)
- A Watanabe
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Tomioka
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Okata
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Yoshimura
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Kumode
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Iwabuchi
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Kameoka
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Takanarita
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Uemura
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Samejima
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Kawasaki
- Department of Pediatrics, Nikoniko House Kobe Medical and Welfare Center, Kobe, Japan
| | - Y Bitoh
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Miyata T, Shibayama Y, Kawai S, Watanabe A, Shibutani H, Shibutani T, Ishioka K. A pilot study of skin stretching and blood circulation effects of dermal suctioning in dogs. Res Vet Sci 2024; 166:105081. [PMID: 37979516 DOI: 10.1016/j.rvsc.2023.105081] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/30/2023] [Accepted: 11/08/2023] [Indexed: 11/20/2023]
Abstract
Dermal suctioning has been reported to yield effects similar to those of cupping therapy in humans and horses, including pain reduction, increased blood circulation, improved flexibility, and healing. However, there is a dearth of reported outcomes concerning cupping or dermal suctioning in dogs. In this study, we examined the physiological effects of dermal suctioning in dogs. Employing the Medicell MINI pro8 device, dermal suctioning was applied to the dorsal surfaces of eight healthy beagle dogs for 20 min. Metrics such as body surface temperature, rectal temperature, pulse rate, respiratory rate, and skin pinch test results were gauged. Seven healthy beagle dogs were used as controls, and the same measurements were performed without dermal suctioning. The results showed a significant increase in the body surface temperature and skin pinch test results after dermal suctioning. We believe that the elimination of torsion in the blood vessels and nerves in the shallow fascia positively affected the thermoregulatory mechanism, resulting in an increase in body surface temperature, and also improving skin flexibility. Thus, dermal suctioning promotes subcutaneous blood circulation and improves skin flexibility in dogs. Further research is needed to identify the mechanisms underlying the effects of dermal suctioning and evaluate the stress in dogs caused by the implementation of the process.
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Affiliation(s)
- Takuma Miyata
- School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan.
| | | | - Saya Kawai
- School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Airi Watanabe
- School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
| | | | | | - Katsumi Ishioka
- School of Veterinary Nursing and Technology, Nippon Veterinary and Life Science University, Tokyo, Japan
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4
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Tochio T, Kawano K, Iyori K, Makida R, Kadota Y, Fujii T, Ishikawa H, Yasutake T, Watanabe A, Funasaka K, Hirooka Y, Nishifuji K. Topical erythritol combined with L-ascorbyl-2-phosphate inhibits staphylococcal growth and alleviates staphylococcal overgrowth in skin lesions of canine superficial pyoderma. Pol J Vet Sci 2023; 26:647-655. [PMID: 38088308 DOI: 10.24425/pjvs.2023.148284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Erythritol (ERT) and L-ascorbyl-2-phosphate (APS) are bacteriostatic, but their effects on staphylococcal skin infections remain unknown. We aimed to determine whether ERT combined with APS inhibits the growth of staphylococci that are commonly isolated from pyoderma skin lesions in dogs. We investigated the individual and combined effects of ERT and APS on the growth of Staphylococcus pseudintermedius, S. schleiferi, and S. aureus using turbidity assays in vitro. Skin lesions from 10 dogs with superficial pyoderma were topically treated with 5% ERT and 0.1% APS for 28 days, and swabbed skin samples were then analyzed using 16S rRNA amplicon sequencing and quantitative real-time PCR (qPCR). Results showed that ERT inhibited S. pseudintermedius growth regardless of harboring the mecA gene, and APS increased the inhibitory effects of ERT against S. pseudintermedius, S. schleiferi, and S. aureus in vitro. Moreover, combined ERT and APS decreased the prevalence of staphylococci on canine skin lesions at the genus level. The combination slightly increased the α-diversity but did not affect the β-diversity of the microbiota. The qPCR results revealed that the combination significantly decreased S. pseudintermedius and S. schleiferi in skin lesions. Topical administration of EPS combined with APS can prevent staphylococcal colonization on the surface of mammalian skin. The results of this study may provide an alternative to systemic antibiotics for treating superficial pyoderma on mammalian skin surfaces.
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Affiliation(s)
- T Tochio
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - K Kawano
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
- Tokyo Animal Allergy Center, 4-23-15, Kurihara, Adachi-ku, Tokyo 123-0842, Japan
| | - K Iyori
- Vet Derm Tokyo, Dermatological and Laboratory Service for Animals, 910 Shoubusawa, Fujisawa, Kanagawa 252-0823, Japan
| | - R Makida
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
| | - Y Kadota
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
| | - T Fujii
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
| | - H Ishikawa
- Healthcare Systems Co., Ltd., Nagoya Aichi, 466-0058, Japan
| | - T Yasutake
- Healthcare Systems Co., Ltd., Nagoya Aichi, 466-0058, Japan
| | - A Watanabe
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - K Funasaka
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - Y Hirooka
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - K Nishifuji
- Division of Animal Life Science, Institute of Agriculture, Graduate School, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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Watanabe A, Fujii M, Sano T, Ikegami S, Kamei J, Kojima S, Satake Y, Yamada T. Tracheal leiomyoma. QJM 2023; 116:563-565. [PMID: 36944268 DOI: 10.1093/qjmed/hcad044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 03/15/2023] [Indexed: 03/23/2023] Open
Affiliation(s)
- A Watanabe
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - M Fujii
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - T Sano
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - S Ikegami
- Department of Otolaryngology, Head and Neck Surgery, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - J Kamei
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - S Kojima
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Y Satake
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - T Yamada
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
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Watanabe A, Guo C, Sjöström PJ. The developmental profile of visual cortex astrocytes. iScience 2023; 26:106828. [PMID: 37250801 PMCID: PMC10212985 DOI: 10.1016/j.isci.2023.106828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 03/08/2023] [Accepted: 05/03/2023] [Indexed: 05/31/2023] Open
Abstract
We investigated how astrocytes in layer 5 mouse visual cortex mature over postnatal days (P) 3-50. Across this age range, resting membrane potential increased, input resistance decreased, and membrane responses became more passive with age. Two-photon (2p) and confocal imaging of dye-loaded cells revealed that gap-junction coupling increased starting ∼P7. Morphological reconstructions revealed increased branch density but shorter branches after P20, suggesting that astrocyte branches may get pruned as tiling is established. Finally, we visualized spontaneous Ca2+ transients with 2p microscopy and found that Ca2+ events decorrelated, became more frequent and briefer with age. As astrocytes mature, spontaneous Ca2+ activity thus changes from relatively cell-wide, synchronous waves to local transients. Several astrocyte properties were stably mature from ∼P15, coinciding with eye opening, although morphology continued to develop. Our findings provide a descriptive foundation of astrocyte maturation, useful for the study of astrocytic impact on visual cortex critical period plasticity.
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Affiliation(s)
- Airi Watanabe
- Centre for Research in Neuroscience, Brain Repair and Integrative Neuroscience Program, Department of Medicine, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC H3G 1A4, Canada
- Integrated Program in Neuroscience, Irving Ludmer Building, McGill University, 1033 Pine Avenue West, Montreal, QC H3A 1A1, Canada
| | - Connie Guo
- Centre for Research in Neuroscience, Brain Repair and Integrative Neuroscience Program, Department of Medicine, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC H3G 1A4, Canada
- Department of Anatomy and Cell Biology, Faculty of Science, McGill University, Strathcona Anatomy and Dentistry Building, 3640 University Street, Montreal, QC H3A 0C7, Canada
| | - Per Jesper Sjöström
- Centre for Research in Neuroscience, Brain Repair and Integrative Neuroscience Program, Department of Medicine, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC H3G 1A4, Canada
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7
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Tharakan S, Shepherd N, Gower DJ, Stanley EL, Felice RN, Goswami A, Watanabe A. High-Density Geometric Morphometric Analysis of Intraspecific Cranial Integration in the Barred Grass Snake ( Natrix helvetica) and Green Anole ( Anolis carolinensis). Integr Org Biol 2023; 5:obad022. [PMID: 37397233 PMCID: PMC10311474 DOI: 10.1093/iob/obad022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 04/30/2023] [Accepted: 06/02/2023] [Indexed: 07/04/2023] Open
Abstract
How do phenotypic associations intrinsic to an organism, such as developmental and mechanical processes, direct morphological evolution? Comparisons of intraspecific and clade-wide patterns of phenotypic covariation could inform how population-level trends ultimately dictate macroevolutionary changes. However, most studies have focused on analyzing integration and modularity either at macroevolutionary or intraspecific levels, without a shared analytical framework unifying these temporal scales. In this study, we investigate the intraspecific patterns of cranial integration in two squamate species: Natrix helvetica and Anolis carolinensis. We analyze their cranial integration patterns using the same high-density three-dimensional geometric morphometric approach used in a prior squamate-wide evolutionary study. Our results indicate that Natrix and Anolis exhibit shared intraspecific cranial integration patterns, with some differences, including a more integrated rostrum in the latter. Notably, these differences in intraspecific patterns correspond to their respective interspecific patterns in snakes and lizards, with few exceptions. These results suggest that interspecific patterns of cranial integration reflect intraspecific patterns. Hence, our study suggests that the phenotypic associations that direct morphological variation within species extend across micro- and macroevolutionary levels, bridging these two scales.
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Affiliation(s)
- S Tharakan
- Department of Anatomy, New York Institute of Technology, College of Osteopathic Medicine, 100 Northern Boulevard, Old Westbury, NY 11568, USA
| | - N Shepherd
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London, WC1E 6BT, UK
| | - D J Gower
- Life Sciences Division, Natural History Museum, Cromwell Road, London, SW7 5BD, UK
| | - E L Stanley
- Digital Imaging Division, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611-0001, USA
| | - R N Felice
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London, WC1E 6BT, UK
- Life Sciences Division, Natural History Museum, Cromwell Road, London, SW7 5BD, UK
- Centre for Integrative Anatomy, Department of Cell and Developmental Biology, University College London, Gower Street, London, WC1E 6BT, UK
| | - A Goswami
- Department of Genetics, Evolution, and Environment, University College London, Gower Street, London, WC1E 6BT, UK
- Life Sciences Division, Natural History Museum, Cromwell Road, London, SW7 5BD, UK
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Nakagawa M, Yoda K, Asahi K, Yumigeta Y, Watanabe A. Reproductive characteristics in an understory bamboo and gradual environmental changes after its dieback provide an extended opportunity for overstory tree regeneration in a mixed cool-temperate forest in central Japan. Plant Biol (Stuttg) 2023. [PMID: 37070345 DOI: 10.1111/plb.13528] [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] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 04/03/2023] [Indexed: 05/04/2023]
Abstract
The reproductive characteristics of understory bamboo and the effects of dieback on overstory tree seedlings through temporal changes in the environment at the forest floor have only been examined in a few bamboo species, due to the unpredictable occurrence of flowering events and long intervals between them but provide valuable information on tree regeneration and succession in a forest with dense dwarf bamboo cover. We investigated environmental conditions and assessed seedlings (< 30-cm tall) of the dwarf bamboo Sasa borealis and overstory tree species at 44-50 measurement points during 2016-2021, which included a S. borealis mass flowering event in 2017. We also conducted seed germination tests to determine germination rates and patterns in S. borealis. Environmental factors affecting seedling recruitment of S. borealis and of overstory trees were analysed using spatiotemporal generalized linear mixed models in the Bayesian framework. We observed gradual temporal changes in the environment, including increasing canopy openness and decreasing maximum height of dead S. borealis culms. The seeds germinated slowly and the emergence of current-year S. borealis seedlings peaked in spring-summer in 2019. The tree seedling density after 2019 increased significantly compared to that before the dieback. The model results suggest that tree seedling establishment was enhanced by increased light availability. Continuous field observation beginning before S. borealis dieback revealed gradually enhanced tree recruitment in response to slow decay of the remaining dead culms and slow recovery of S. borealis. The seedling regeneration pattern of understory bamboo partly contributes to a prolonged opportunity for overstory tree regeneration.
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Affiliation(s)
- M Nakagawa
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - K Yoda
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - K Asahi
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Y Yumigeta
- School of Agricultural Sciences, Nagoya University, Nagoya, Japan
| | - A Watanabe
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
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McFarlan AR, Chou CYC, Watanabe A, Cherepacha N, Haddad M, Owens H, Sjöström PJ. The plasticitome of cortical interneurons. Nat Rev Neurosci 2023; 24:80-97. [PMID: 36585520 DOI: 10.1038/s41583-022-00663-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2022] [Indexed: 12/31/2022]
Abstract
Hebb postulated that, to store information in the brain, assemblies of excitatory neurons coding for a percept are bound together via associative long-term synaptic plasticity. In this view, it is unclear what role, if any, is carried out by inhibitory interneurons. Indeed, some have argued that inhibitory interneurons are not plastic. Yet numerous recent studies have demonstrated that, similar to excitatory neurons, inhibitory interneurons also undergo long-term plasticity. Here, we discuss the many diverse forms of long-term plasticity that are found at inputs to and outputs from several types of cortical inhibitory interneuron, including their plasticity of intrinsic excitability and their homeostatic plasticity. We explain key plasticity terminology, highlight key interneuron plasticity mechanisms, extract overarching principles and point out implications for healthy brain functionality as well as for neuropathology. We introduce the concept of the plasticitome - the synaptic plasticity counterpart to the genome or the connectome - as well as nomenclature and definitions for dealing with this rich diversity of plasticity. We argue that the great diversity of interneuron plasticity rules is best understood at the circuit level, for example as a way of elucidating how the credit-assignment problem is solved in deep biological neural networks.
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Affiliation(s)
- Amanda R McFarlan
- Centre for Research in Neuroscience, Department of Medicine, The Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.,Integrated Program in Neuroscience, McGill University, Montréal, Québec, Canada
| | - Christina Y C Chou
- Centre for Research in Neuroscience, Department of Medicine, The Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.,Integrated Program in Neuroscience, McGill University, Montréal, Québec, Canada
| | - Airi Watanabe
- Centre for Research in Neuroscience, Department of Medicine, The Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.,Integrated Program in Neuroscience, McGill University, Montréal, Québec, Canada
| | - Nicole Cherepacha
- Centre for Research in Neuroscience, Department of Medicine, The Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Maria Haddad
- Centre for Research in Neuroscience, Department of Medicine, The Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.,Integrated Program in Neuroscience, McGill University, Montréal, Québec, Canada
| | - Hannah Owens
- Centre for Research in Neuroscience, Department of Medicine, The Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.,Integrated Program in Neuroscience, McGill University, Montréal, Québec, Canada
| | - P Jesper Sjöström
- Centre for Research in Neuroscience, Department of Medicine, The Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.
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10
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Morofuji T, Nagai S, Watanabe A, Inagawa K, Kano N. Streptocyanine as an activation mode of amine catalysis for the conversion of pyridine rings to benzene rings. Chem Sci 2023; 14:485-490. [PMID: 36741523 PMCID: PMC9847661 DOI: 10.1039/d2sc06225a] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Amine catalysts have emerged as an invaluable tool in organic synthesis. Iminium, enamine, and enamine radical cation species are representative activation modes of amine catalysis. However, the development of new amine catalysis activation modes that enable novel synthetic strategies remains highly desirable. Herein, we report streptocyanine as a new amine catalysis activation mode, which enables the skeletal editing of pyridine rings to benzene rings. N-Arylation of pyridines bearing an alkenyl substituent at the 3-position generates the corresponding N-arylpyridiniums. The resulting pyridinum reacts with a catalytic amount of piperidine to afford a streptocyanine intermediate. Catalytically generated streptocyanine forms a benzene ring via a ring-closing reaction, thereby releasing the amine catalyst. Consequently, the alkene moiety in the starting pyridines is incorporated into the benzene ring of the products. Pyridiniums bearing various alkene moieties were efficiently converted to formyl-substituted benzene derivatives. Mechanistic studies support the postulation that the present catalytic process was intermediated by streptocyanine. In this reaction system, streptocyanine could be regarded as a new activation mode of amine catalysis.
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Affiliation(s)
- Tatsuya Morofuji
- Department of Chemistry, Faculty of Science, Gakushuin University1-5-1 MejiroToshima-kuTokyo 171-8588Japan
| | - Shota Nagai
- Department of Chemistry, Faculty of Science, Gakushuin University1-5-1 MejiroToshima-kuTokyo 171-8588Japan
| | - Airi Watanabe
- Department of Chemistry, Faculty of Science, Gakushuin University1-5-1 MejiroToshima-kuTokyo 171-8588Japan
| | - Kota Inagawa
- Department of Chemistry, Faculty of Science, Gakushuin University1-5-1 MejiroToshima-kuTokyo 171-8588Japan
| | - Naokazu Kano
- Department of Chemistry, Faculty of Science, Gakushuin University1-5-1 MejiroToshima-kuTokyo 171-8588Japan
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Ito M, Kamata M, Shimizu T, Uchida H, Egawa S, Takeshima R, Mizukawa I, Watanabe A, Tada Y. 400 308-nm excimer lamp ameliorates MC-903 induced atopic dermatitis with a reduction of thymic stromal lymphopoietin mRNA levels. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.413] [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: 11/19/2022]
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12
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Katano S, Watanabe A, Nagaoka R, Numazawa R, Honma S, Ohori K, Kouzu H, Fujito T, Nishikawa R, Ohwada R, Nagano N, Koyama M, Katayose M, Hashimoto A, Yano T. Loss of social role awareness, a subdomain of social frailty, is an independent predictor of future adverse events in hospitalized older patients with heart failure. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Frailty is a complex syndrome characterized by a decline in functional reserve, and associated with aging and chronic diseases including heart failure (HF). The impact of physical frailty on prognosis and the effect of cardiac rehabilitation in HF patients have been well established. However, the data on the prognostic impact of social frailty (SF) in HF patients is limited.
Aims
We aimed to get new insight into mechanisms of the association of SF with clinical outcomes in older hospitalized HF patients.
Methods
A single-center, retrospective cohort study was conducted using data from 308 HF patients aged ≥65 years (mean age of 78±8 years; 49% females) who were admitted to our institute for the management of HF. SF was assessed using the validated Makizako's five questions. The following responses were considered positive for SF: (1) going out less frequently compared with last year; (2) not visiting friends; (3) not talking with someone every day; (4) not feeling helpful toward friends or family; and (5) living alone. SF was defined as two or more positive responses. The primary outcome was composite events defined by all-cause death and cardiovascular events. The missing data were imputed using multiple imputation by chained -equations algorithm.
Results
Of 308 older HF patients, 189 patients (61%) were SF. Patients with SF were significantly older, had lower body mass index, and a higher percentage of patients with physical frailty and cognitive frailty than those without SF. Seventy-five patients (24%) experienced composite events during a median follow-up period of 1.55-years (interquartile range, 0.88–2.20 years). Kaplan-Meier curves showed a significantly higher composite event rate in patients with SF than those without SF. In multivariate Cox regression analyses, SF was independently associated with a higher composite event rate after adjusting for pre-existing risk factors [adjusted hazard ratio (HR), 1.91; 95% confidence interval (CI), 1.09–3.35; p=0.03] (Figure 1A). In addition, further analyses showed that only the positive response on the question corresponding to the social role – not feeling helpful toward friends or family – among the questionnaire was an independent predictor for the incidence of the composite event (adjusted HR, 2.10; 95% CI, 1.29–3.41; p<0.01, Figure 1B). Inclusion of the response to the question regarding the social role into the baseline prognostic model improved the accuracy of prediction of the composite event (continuous net reclassification improvement, 0.46; 95% CI, 0.21–0.71; p<0.01; integrated discrimination improvement, 0.025; 95% CI 0.004–0.047; p=0.02; Figure 2).
Conclusion
Loss of social role awareness was associated with increased composite event risk and provided additive prognostic information in older HF patients, suggesting the importance of healthcare professionals' decision-making on the prevention and management of SF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Katano
- Sapporo Medical University Hospital , Sapporo , Japan
| | - A Watanabe
- Sapporo Medical University Hospital, Division of Nursing , Sapporo , Japan
| | - R Nagaoka
- Sapporo Medical University Hospital, Division of Rehabilitation , Sapporo , Japan
| | - R Numazawa
- Sapporo Medical University, Graduate School of Medicine , Sapporo , Japan
| | - S Honma
- Sapporo Cardiovascular Hospital, Department of Rehabilitation , Sapporo , Japan
| | - K Ohori
- Hokkaido Cardiovascular Hospital, Department of Cardiology , Sapporo , Japan
| | - H Kouzu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - T Fujito
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - R Nishikawa
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - R Ohwada
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - N Nagano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - M Koyama
- Sapporo Medical University, Department of Public Health , Sapporo , Japan
| | - M Katayose
- Sapporo Medical University, Second Division of Physical Therapy , Sapporo , Japan
| | - A Hashimoto
- Sapporo Medical University, Division of Health Care Administration and Management , Sapporo , Japan
| | - T Yano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
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13
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Numazawa R, Katano S, Nagaoka R, Honma S, Ohori K, Kouzu H, Watanabe A, Fujito T, Nishikawa R, Owada W, Nagano N, Koyama M, Katayose M, Hashimoto A, Yano T. Coexistence of sarcopenia and osteoporosis in patients with heart failure: prevalence and association with functional status. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Sarcopenia, the loss of muscle mass and function, and osteoporosis, a condition of low bone mass and micro-architectural deterioration of bone, frequently coexist and are associated with low functional status in heart failure (HF) patients.
Aims
We aimed to investigate the impact of coexistence of sarcopenia and osteoporosis on functional status in HF patients.
Methods
This cross-sectional study was conducted using data from patients who admitted to our institute for the diagnosis and management of HF from 1 November 2015 to 30 April 2021. All patients received the dual-energy X-ray absorptiometry (DEXA) method before discharge. The diagnosis of sarcopenia was made according to the criteria of Asia Working Group for Sarcopenia 2019 recommendation as follows: reduced skeletal muscle mass [appendicular skeletal muscle mass index (ASMI) by DEXA, <7.00 kg/m2 in males and <5.40 kg/m2 in females] plus lower muscle strength (handgrip strength, <28 kg in males and <18 kg in females) and/or poor physical performance (gait speed, <1.0 m/s; chair stand test time. ≥12 s; short physical performance battery ≤9 points). In addition, bone mineral densities (BMDs) at the lumbar spine, femoral neck, and total femur were measured by DEXA, and osteoporosis was diagnosed when BMDs at any of the three sites were less than 70% of Young Adult Mean (YAM). Functional status was assessed by the Barthel Index (BI) within three days before discharge, and patients with a BI score of <85 points was defined as having functional dependence (FD). The missing data were imputed using multiple imputation by chained -equations algorithm.
Results
Four hundred-thirty eight patients [median age of 74 years (interquartile range, 65–82 years), 37% females] were included in the analyses. Of these, percentage of HF patients with sarcopenia, osteoporosis, and sarcopenia and osteoporosis was 45%, 34%, and 20%, respectively (Figure 1A). The analysis of covariance showed a lower %YAM at any sites in patients with sarcopenia than those without sarcopenia (Figure 1B). When patients were divided into subgroups according to the presence or absence of sarcopenia and osteoporosis, the prevalence of FD was 32%, 34%, and 48% in patients with osteoporosis alone, sarcopenia alone, and sarcopenia and osteoporosis, respectively. Multivariate logistic regression analysis indicated that an increase in adjusted odds ratio (OR) for predicting FD was observed across subgroups in the following order: patients with osteoporosis alone [OR, 1.64; 95% confidence interval (CI), 0.63–4.24; p=0.31], those with sarcopenia alone (OR, 2.44; 95% CI, 1.13–5.25; p=0.02) and those with both conditions (OR, 3.34; 95% CI, 1.52–7.38; p<0.01) (Figure 2).
Conclusion
There was considerable overlap between sarcopenia and osteoporosis in HF patients, which appeared to be a risk factor for FD.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- R Numazawa
- Sapporo Medical University, Graduate School of Medicine , Sapporo , Japan
| | - S Katano
- Sapporo Medical University Hospital, Division of Rehabilitation , Sapporo , Japan
| | - R Nagaoka
- Sapporo Medical University Hospital, Division of Rehabilitation , Sapporo , Japan
| | - S Honma
- Sapporo Cardiovascular Hospital, Department of Rehabilitation , Sapporo , Japan
| | - K Ohori
- Hokkaido Cardiovascular Hospital, Department of Cardiology , Sapporo , Japan
| | - H Kouzu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - A Watanabe
- Sapporo Medical University Hospital, Division of Nursing , Sapporo , Japan
| | - T Fujito
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - R Nishikawa
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - W Owada
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - N Nagano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
| | - M Koyama
- Sapporo Medical University School of Medicine, Department of Public Health , sapporo , Japan
| | - M Katayose
- Sapporo Medical University, Second Division of Physical Therapy, School of Health Sciences , Sapporo , Japan
| | - A Hashimoto
- Sapporo Medical University School of Medicine, Division of Health Care Administration and Management , sapporo , Japan
| | - T Yano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine , Sapporo , Japan
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14
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Suetomi T, Shimokawahara H, Fukuda Y, Kanezawa M, Suruga K, Hayashi K, Miyagi A, Kobashi S, Sugiyama Y, Shigetoshi M, Tabuchi I, Ogawa A, Watanabe A, Matsubara H. High incidence of pulmonary artery thrombosis after balloon pulmonary angioplasty in CTEPH patients receiving direct oral anticoagulants. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Chronic thromboembolic pulmonary hypertension (CTEPH) requires life-long anticoagulant therapy, whereas limited data exist on the safety and efficacy of direct oral anticoagulants (DOACs) and vitamin K antagonists (VKAs) along with balloon pulmonary angioplasty (BPA).
Objectives
To evaluate outcomes and complications in CTEPH following BPA for individuals receiving DOACs or VKAs.
Methods
Consecutive CTEPH patients underwent BPA from September 2014 to August 2021 were included in a retrospective analysis. Complications during BPA, post-BPA hemodynamics and bleeding events were obtained from patient's medical records. Our routine follow-up “selective” pulmonary angiography, to evaluate all segmental pulmonary arteries one by one at six months and every year after final BPA session, was performed to elucidate the incidence of in-situ fresh floating thrombus.
Results
Of total 250 individuals, 104 were treated with DOACs and 146 with VKAs following BPA. Mean observation period was 905 (SD ± 660) days. Total 1278 BPA sessions were performed among the period in which 409 sessions were treated with DOACs and 869 sessions with VKAs. Significant improvements in hemodynamics and functional status were observed in both groups following BPA. There was no significant difference of hemoptysis during BPA between DOACs and VKAs (7.1% vs 10.1%, P=0.131). Major bleeding events during observation period were equivalent in those treated with DOACs and VKAs. No significant re-elevation of pulmonary artery pressure was observed in both groups after BPA. Follow-up selective pulmonary angiography identified in-situ fresh floating thrombus in pulmonary artery in 22 cases of total 769 follow-up sessions. The occurrence of fresh thrombus was significantly higher in those receiving DOACs than VKAs in therapeutic range of PT-INR >1.8 (3.9% vs 1.2%, P=0.023) whereas no significant difference between DOACs and overall VKAs (3.9% vs 2.4%, P=0.177)
Conclusions
Post-BPA hemodynamic outcomes and bleeding events appear unaffected by choice of anticoagulant. However, the incidence of in-situ pulmonary thrombosis detected by selective pulmonary angiography was significantly higher in those receiving DOACs than VKAs in therapeutic range, suggesting inadequate anticoagulation under current dose of DOACs. Our study provides a rationale for further examination to evaluate the efficacy of DOACs in CTEPH.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- T Suetomi
- Okayama Medical Center , Okayama , Japan
| | | | - Y Fukuda
- Okayama Medical Center , Okayama , Japan
| | - M Kanezawa
- Okayama Medical Center , Okayama , Japan
| | - K Suruga
- Okayama Medical Center , Okayama , Japan
| | - K Hayashi
- Okayama Medical Center , Okayama , Japan
| | - A Miyagi
- Okayama Medical Center , Okayama , Japan
| | - S Kobashi
- Okayama Medical Center , Okayama , Japan
| | - Y Sugiyama
- Okayama Medical Center , Okayama , Japan
| | | | - I Tabuchi
- Okayama Medical Center , Okayama , Japan
| | - A Ogawa
- Okayama Medical Center , Okayama , Japan
| | - A Watanabe
- Okayama Medical Center , Okayama , Japan
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15
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Joe R, Matsumura Y, Siddiqui A, Foulks J, Beg M, Thompson J, Yamamoto N, Spira A, Sarantopoulos J, Melear J, Lou Y, Lebedinsky C, Li J, Watanabe A, Warner S. The AXL inhibitor, TP-0903, reverses EMT and shows activity in non-small cell lung cancer preclinical models. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00954-6] [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: 11/03/2022]
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16
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Tochio T, Makida R, Fujii T, Kadota Y, Takahashi M, Watanabe A, Funasaka K, Hirooka Y, Yasukawa A, Kawano K. The bacteriostatic effect of erythritol on canine periodontal disease-related bacteria. Pol J Vet Sci 2022; 25:75-82. [PMID: 35575772 DOI: 10.24425/pjvs.2022.140843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Erythritol helps both prevent and improve periodontal disease and is therefore widely used for dental care in humans. However, only a few studies have investigated the effects of erythritol on periodontal disease in animals. We hypothesized that erythritol could be used to prevent and improve periodontal disease also in canines and investigated the effects of erythritol on canine periodontal disease-related pathogenic bacteria using both in vitro and in vivo methods. The effect of erythritol on the proliferation of Porphyromonas gulae, which is reportedly associated with canine periodontal disease, was investigated in vitro. In addition, a 4-week intervention trial using an external gel preparation containing 5% erythritol was performed in canines with mild periodontal disease; changes in the microbiota around periodontal lesions were investigated using next-generation sequencing and bioinformatics analysis. The growth of P. gulae was significantly suppressed by erythritol in vitro. In the intervention study, the Shannon index, an indicator of the species distribution α-diversity, and the occupancy of several canine periodontal disease - related bacteria ( P. gulae, P. cangingivalis) were significantly decreased in periodontal lesions. Based on the results of in vitro and in vivo studies, we conclude that, as in humans, erythritol has bacteriostatic effects against periodontal disease - related bacteria in canines.
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Affiliation(s)
- T Tochio
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - R Makida
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
| | - T Fujii
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
| | - Y Kadota
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
| | - M Takahashi
- B Food Science Co., Ltd., 24-12, Kitahama-machi, Chita, Aichi 478-0046, Japan
| | - A Watanabe
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - K Funasaka
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - Y Hirooka
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - A Yasukawa
- Kamishakujii Veterinary Medical Hospital, 1-4-13, Sekimachi-Higashi, Nerima-ku, Tokyo 177-0052, Japan
| | - K Kawano
- Department of Gastroenterology and Hepatology, Fujita Health University, Toyoake, Aichi 470-1192, Japan
- Tokyo Animal Allergy Center, 4-23-15, Kurihara, Adachi-ku, Tokyo 123-0842, Japan
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17
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Watanabe A. Point-of-care lung ultrasound predicts in-hospital mortality in acute heart failure; is this reversible? QJM 2022; 115:61. [PMID: 33970280 DOI: 10.1093/qjmed/hcab132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Watanabe
- From the Department of Cardiovascular Surgery, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, Ibaraki 305-8576, Japan
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18
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Ootake T, Ishii T, Sueishi K, Watanabe A, Ishizuka Y, Amano K, Nagao M, Nishimura K, Nishii Y. Effects of mechanical stress and deficiency of dihydrotestosterone or 17β-estradiol on Temporomandibular Joint Osteoarthritis in mice. Osteoarthritis Cartilage 2021; 29:1575-1589. [PMID: 34500105 DOI: 10.1016/j.joca.2021.08.005] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To observe and analyze the interaction between excessive mechanical stress (MS) and decreased sex hormones on Temporomandibular Joint Osteoarthritis (TMJ-OA), and to discover TMJ-OA disease susceptibility genes by molecular biological analysis to elucidate part of the mechanism of TMJ-OA onset. DESIGN For experimental groups, orchiectomy (ORX) or ovariectomy (OVX) was performed on sexually mature 8-week-old mice. A metal plate was attached to the posterior surface of the maxillary incisors to apply excessive MS on mandibular condyles. Male mice were divided into control, ORX, MS, and ORX + MS groups, while female mice were divided into control, OVX, MS, and OVX + MS groups. Mandibular condyles were evaluated by histology and molecular biology. RESULTS Histomorphometric analysis of the TMJ in ORX + MS and OVX + MS groups revealed the thinnest chondrocyte layers, highest modified Mankin scores, and significant increases in the number of osteoclasts. Gene expression analysis indicated upregulation of Angptl7 and Car1 genes in the mandibular condyles of mice subjected to the combined effects of excessive MS and reduced sex hormones. In vitro analysis suggested that cartilage-like cells overexpressing Angptl7 enhanced calcification, and osteoblast-like cells overexpression Car1 suppressed cell proliferation and calcification. CONCLUSIONS A severe TMJ-OA mouse model was successfully developed by applying excessive MS on the mandibular condyle of male and female mice with reduced sex hormones. Disease-susceptibility genes Angptl7 and Car1 were newly discovered in the experimental groups, suggesting their involvement in the onset mechanism of TMJ-OA.
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Affiliation(s)
- T Ootake
- Department of Orthodontics (Suidobashi Hospital), Tokyo Dental College, 2-9-18 Kanda-Misakicho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - T Ishii
- Department of Orthodontics (Suidobashi Hospital), Tokyo Dental College, 2-9-18 Kanda-Misakicho, Chiyoda-ku, Tokyo 101-0061, Japan.
| | - K Sueishi
- Department of Orthodontics (Suidobashi Hospital), Tokyo Dental College, 2-9-18 Kanda-Misakicho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - A Watanabe
- Department of Oral and Maxillofacial Surgery, Tokyo Dental College, 2-9-18 Kanda-Misakicho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Y Ishizuka
- Department of Epidemiology and Public Health, Tokyo Dental College, 2-9-18 Kanda-Misakicho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - K Amano
- The First Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M Nagao
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, 2-1-1 Hongo Bunkyo-ku, Tokyo, 113-8421 Japan
| | - K Nishimura
- Clinics for Maxillo-Oral Disorders, Dental Center, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Y Nishii
- Department of Orthodontics (Suidobashi Hospital), Tokyo Dental College, 2-9-18 Kanda-Misakicho, Chiyoda-ku, Tokyo 101-0061, Japan
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19
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Ogura S, Nakamura K, Morita H, Nishii N, Watanabe A, Akagi S, Norihisa T, Yoichi T, Miyoshi T, Ito H. Fragmented qrs as a predictor of cardiac events in patients with cardiac sarcoidosis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Multiple spikes within the QRS complex (fragmented QRS [fQRS]) are associated with occurrences of ventricular arrhythmic events (VAEs) in Brugada syndrome and hypertrophic cardiomyopathy. However, association between fQRS and occurrences of VAEs in cardiac sarcoidosis (CS) has not been elucidated.
Purpose
We investigated the association between fQRS and cardiac events in patients with CS.
Methods
We evaluated the association between existence of fQRS (Figure 1A) and cardiac events including VAEs (non-sustained ventricular tachycardia (NSVT), sustained ventricular tachycardia (VT) and ventricular fibrillation (VF)), hospitalization for heart failure and all cause death in 68 patients with CS for 5 years (30 patients with fQRS vs 38 patients without fQRS).
Results
All cardiac events (NSVT, VT, VF, hospitalization for heart failure and all cause death) occurred in 22 patients with fQRS and 18 patients without fQRS (73% vs 47%; P=0.031). Among cardiac events, occurrences of VAEs (NSVT/VT/VF) in patients with baseline fQRS were higher than those in patients without fQRS (VAEs: 70% vs 45%, P=0.037), whereas there were no significant differences in hospitalization for heart failure and all cause death between patients with and without fQRS (hospitalization for heart failure: 6.7% vs 5.3%, P=0.80 and all cause death: 6.7% vs 5.3%, P=0.80). Kaplan-Meier method also showed significant difference in occurrences of VAEs between with and without fQRS (Log rank: P=0.015) (Figure 1B). Multivariable analysis showed that the existence of fQRS in baseline ECG was associated with VAEs (Hazard ratio [HR]: 2.21, 95% confidence interval [CI]:1.15 to 4.25, P=0.017).
Conclusions
fQRS represents a predictor of VAEs in patients with CS.
Funding Acknowledgement
Type of funding sources: None. Figure 1
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Affiliation(s)
- S Ogura
- IMS Katsushika Heart Center, Tokyo, Japan
| | - K Nakamura
- Okayama University Hospital, Cardiology, Okayama, Japan
| | - H Morita
- Okayama University Hospital, Cardiology, Okayama, Japan
| | - N Nishii
- Okayama University Hospital, Cardiology, Okayama, Japan
| | - A Watanabe
- Okayama Medical Center, Cardiology, Okayama, Japan
| | - S Akagi
- Okayama University Hospital, Cardiology, Okayama, Japan
| | - T Norihisa
- Okayama University Hospital, Cardiology, Okayama, Japan
| | - T Yoichi
- Okayama University Hospital, Cardiology, Okayama, Japan
| | - T Miyoshi
- Okayama University Hospital, Cardiology, Okayama, Japan
| | - H Ito
- Okayama University Hospital, Cardiology, Okayama, Japan
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20
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Willis C, Kawamoto K, Watanabe A, Biskupiak J, Nolen K, Blackner L, Bruno M, Ateya M, Schepart A, Nativi-Nicolau J. SCREENING OF PATIENTS AT RISK FOR WILD TYPE ATTR-CM USING A COMPUTATIONAL MACHINE LEARNING ALGORITHM. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.134] [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: 10/20/2022] Open
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21
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Watanabe A. Virtual impact of a specialist service in the Emergency Department. QJM 2021; 114:348. [PMID: 33823037 DOI: 10.1093/qjmed/hcab067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Watanabe
- From the Department of Nephrology, Tsukuba Gakuen Hospital, 2573-1 Kamiyokoba, Tsukuba, Ibaraki 305-0854, Japan
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22
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Tokushita Y, Watanabe A, Torii A, Nakabayashi K, Samitsu S, Mori H. Photocurable selenophene/maleimide-based high-refractive-index copolymers obtained via radical copolymerization. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Watanabe A. Rationale of bedside ultrasound-guided inferior vena cava filter implantation in COVID-19 patients with deep venous thrombosis. QJM 2021; 114:147. [PMID: 33515259 PMCID: PMC7928600 DOI: 10.1093/qjmed/hcaa337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- A Watanabe
- From the Department of Surgery, Tsukuba Gakuen Hospital, 2573-1 Kamiyokoba, Tsukuba, Ibaraki 305-0854, Japan.
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24
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Tada M, Sumi T, Tanaka Y, Hirai S, Yamaguchi M, Miyajima M, Takahashi H, Watanabe A, Sakuma Y. P61.02 MCL1 Inhibition Enhances the Therapeutic Effect of MEK Inhibitors in KRAS-Mutant Lung Adenocarcinoma Cells. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Watanabe A. Potential negative economic effects of diuretic lounge. QJM 2021; 114:72. [PMID: 33031518 DOI: 10.1093/qjmed/hcaa279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Watanabe
- Division of Hospital Medicine, University of Tsukuba Hospital, 2-1-1 Amakubo Tsukuba, Ibaraki, 305-8576, Japan
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26
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Watanabe A, Ito H. The characteristics of patients with possible familial hypercholesterolemia: screening a large payer/provider healthcare delivery system. QJM 2021; 114:66. [PMID: 32810258 DOI: 10.1093/qjmed/hcaa249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Watanabe
- Division of Hospital Medicine, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
| | - H Ito
- Division of Hospital Medicine, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
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27
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Oka S, Kai T, Hoshino K, Watanabe K, Nakamura J, Abe M, Watanabe A. A comparison of rate control and rhythm control in tachycardia induced cardiomyopathy patients with persistent atrial flutter. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Tachycardia induced cardiomyopathy (TIC) is a potentially reversible dysfunction of the left ventricle (LV) caused by tachyarrhythmias. Early recognition of TIC and treatment of the culprit arrhythmia using pharmacological therapy or catheter ablation results in the recovery of LV function. For atrial flutter (AFL)-induced TIC, rhythm control strategy, such as catheter ablation has been recommended. On the other hand, the efficacy of rate control strategy has remained unclear due to the difficulty of control with arrhythmic medications. However, not all patients can take rhythm control treatments due to their backgrounds.
Purpose
The aim of this cohort study was to establish whether rate control strategy using β-blocker is as effective as invasive rhythm control strategy for the recovery of LV function in patients with TIC due to AFL.
Methods
We prospectively assessed 47 symptomatic non-ischaemic heart failure (HF) patients with left ventricular ejection fraction (LVEF) below 50% and suspected TIC induced by persistent AFL. Patients were divided into rhythm control strategy group (n=22, treatment: catheter ablation, electrical cardioversion) and rate control strategy group (n=25, treatment: bisoprolol). As a sub-group study, the rate control strategy group was divided into the strict rate control group (n=12, average heart rate below 80 bpm) and lenient rate control group (n=13, average heart rate below 110 bpm). The primary outcome was the recovery of LV function, defined as an increase of LVEF over 20% or to a value of 55% or greater after 6 months.
Results
There were no significant differences in baseline AFL heart rate, New York Heart Association class, LVEF, estimated glomerular filtration rate, and brain natriuretic peptide between the two groups. A greater proportion of patients who showed the recovery of LVEF after 6 months belonged to the rhythm control strategy group (90.9% vs. 52.0%, p=0.004). The cumulative incidence of HF re-hospitalization was significantly higher in the rate control strategy group than in the rhythm control strategy group (hazard ratio: 4.90, 95% CI: 1.06–22.69). As a result of sub-group study, LVEF recovery was greater in the strict rate control group compared to the lenient rate control group (75.0% vs. 30.8%, p=0.027)
Conclusion
Rate control strategy was significantly inferior to rhythm control strategy for the recovery of LVEF in TIC patients with persistent AFL. Rhythm control should be the first choice in the management of TIC with AFL, and strict rate control should be an alternative if rhythm control is not available.
Primary outcomes
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Oka
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - T Kai
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - K Hoshino
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - K Watanabe
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - J Nakamura
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - M Abe
- Fujieda Municipal General Hospital, Fujieda, Japan
| | - A Watanabe
- Fujieda Municipal General Hospital, Fujieda, Japan
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28
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Sakai K, Ooi M, Teshigawara M, Naoe T, Haga K, Watanabe A. Conceptual design of an abnormality sign determination system for the general control system of the Materials and Life Science Experimental Facility at J-PARC. JNR 2020. [DOI: 10.3233/jnr-190133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The general control system (GCS) in the Materials and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC) has a data storage (DS) server that stores operational data on the status of neutron and muon targets in the MLF. It has worked well to detect unusual situations around these target stations and to investigate the causes of accidents by checking data in the DS server for short-term operations. To pick up potential abnormalities in the slight state transitions from the target stations, however, it is necessary to introduce an abnormality sign determination system (ASDS). This ASDS requires an integral data storage (IDS) server that stores various operational data throughout the proton beams, target stations, and secondary beams for long-term operations because it judges potential abnormalities by using algorithms based on analysis of these data. This report describes a present status of the GCS, a conceptual design for the ASDS, and the installation of the IDS server.
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Affiliation(s)
- K. Sakai
- J-PARC Center, JAEA, Tokai, Naka-gun, Ibaraki 319-119, Japan. E-mails: , , , ,
| | - M. Ooi
- J-PARC Center, JAEA, Tokai, Naka-gun, Ibaraki 319-119, Japan. E-mails: , , , ,
| | - M. Teshigawara
- J-PARC Center, JAEA, Tokai, Naka-gun, Ibaraki 319-119, Japan. E-mails: , , , ,
| | - T. Naoe
- J-PARC Center, JAEA, Tokai, Naka-gun, Ibaraki 319-119, Japan. E-mails: , , , ,
| | - K. Haga
- J-PARC Center, JAEA, Tokai, Naka-gun, Ibaraki 319-119, Japan. E-mails: , , , ,
| | - A. Watanabe
- Nippon Advanced Technology Co., Ltd., Tokai, Naka-gun, Ibaraki 319-1112, Japan. E-mail:
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29
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Hino Y, Muraosa Y, Oguchi M, Yahiro M, Yarita K, Watanabe A, Sakaida E, Yokote K, Kamei K. Drain outlets in patient rooms as sources for invasive fusariosis: an analysis of patients with haematological disorders. J Hosp Infect 2020; 105:S0195-6701(20)30204-8. [PMID: 32360338 DOI: 10.1016/j.jhin.2020.04.029] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/21/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND Invasive fusariosis (IF) is a frequently fatal disease as there are few antifungals to treat it, making the prevention of IF crucial. However, fusarium infections have not been as thoroughly studied as other common pathogenic fungi such as Aspergillus or Candida. AIM To investigate the epidemiology of IF in patients with haematological diseases in Japan and to elucidate the infectious route of fusarium infection. METHODS We retrospectively analysed 29 IF cases in patients with haematological diseases from 2009 to 2019 in Japan. To discover the infectious source of IF, we performed an indoor environment survey targeted at indoor air and drain outlets in medical institutions and residences using culture-based and metagenomic methods. Finally, we performed aerosol- and droplet-mediated dispersion studies. FINDINGS The epidemiological study showed that the primary pathogen of IF was Fusarium solani species complex (FSSC), and the most common species was Fusarium petroliphilum. Most patients were likely to develop IF during hospitalization. A fusarium culture was positive in 26 of 72 drain samples. Few fusarium were detected from air samples; by contrast, 29 of 108 isolates from the drain outlets were identified as fusarium. Furthermore, similar results were obtained in the metagenomic analysis. Interestingly, species belonging to FSSC were isolated from indoor drain outlets, which was similar to those of the IF patients. In the droplet-mediated dispersion study, eight to 17 colonies of fusarium were isolated. CONCLUSION Our study indicates that causative Fusarium spp. could inhabit drain outlets in hospitals or residences, and droplet-mediated fusarium dispersion is a potential cause of IF.
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Affiliation(s)
- Y Hino
- Medical Mycology Research Center, Chiba University, Chiba, Japan; Department of Haematology, Chiba University Hospital, Chiba, Japan; Department of Endocrinology, Haematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Y Muraosa
- Medical Mycology Research Center, Chiba University, Chiba, Japan.
| | - M Oguchi
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - M Yahiro
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - K Yarita
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - A Watanabe
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - E Sakaida
- Department of Haematology, Chiba University Hospital, Chiba, Japan; Department of Endocrinology, Haematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - K Yokote
- Department of Endocrinology, Haematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - K Kamei
- Medical Mycology Research Center, Chiba University, Chiba, Japan
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30
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Watanabe A, Yoshizumi T, Harimoto N, Kogure K, Ikegami T, Harada N, Itoh S, Takeishi K, Mano Y, Yoshiya S, Morinaga A, Araki K, Kubo N, Mori M, Shirabe K. Right hepatic venous system variation in living donors: a three-dimensional CT analysis. Br J Surg 2020; 107:1192-1198. [PMID: 32335898 DOI: 10.1002/bjs.11602] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/16/2020] [Accepted: 02/27/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND The right hepatic venous system consists of the right hepatic vein (RHV) and inferior RHVs (IRHVs). When the right posterior section is used as a graft for liver transplantation, understanding variations and relationships between the RHV and IRHVs is critical for graft venous return and hepatic vein reconstruction. This study aimed to evaluate variations in the hepatic veins and the relationships between them. METHODS The medical records and CT images of patients who underwent hepatectomy as liver donors were assessed retrospectively. The relationship between the veins was evaluated by three-dimensional CT. RESULTS The configuration of the posterior section was classified into one of eight types based on the RHV and IRHVs in 307 patients. Type 1a (103 of 307), type 1b (139 of 307) and type 2a (40 of 307) accounted for 91·9 per cent of the total. The diameter of the RHV extending towards the inferior vena cava had a significant inverse correlation with that of the IRHV (r2 = -0·615, P < 0·001). Type 1a, which had no IRHVs, had the RHV with the largest diameter; conversely, type 2a, which had a large IRHV, had the RHV with the smallest diameter. CONCLUSION The hepatic venous system of the right posterior section was classified into eight types, with an inverse relationship between RHV and IRHV sizes. This information is useful for segment VII resection or when the right liver is used as a transplant graft.
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Affiliation(s)
- A Watanabe
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - T Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harimoto
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - K Kogure
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - T Ikegami
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Itoh
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Takeishi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Mano
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Yoshiya
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Morinaga
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Araki
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - N Kubo
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - M Mori
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Shirabe
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
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31
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Brock JA, Thomazeau A, Watanabe A, Li SSY, Sjöström PJ. A Practical Guide to Using CV Analysis for Determining the Locus of Synaptic Plasticity. Front Synaptic Neurosci 2020; 12:11. [PMID: 32292337 PMCID: PMC7118219 DOI: 10.3389/fnsyn.2020.00011] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 12/02/2019] [Accepted: 03/04/2020] [Indexed: 01/17/2023] Open
Abstract
Long-term synaptic plasticity is widely believed to underlie learning and memory in the brain. Whether plasticity is primarily expressed pre- or postsynaptically has been the subject of considerable debate for many decades. More recently, it is generally agreed that the locus of plasticity depends on a number of factors, such as developmental stage, induction protocol, and synapse type. Since presynaptic expression alters not just the gain but also the short-term dynamics of a synapse, whereas postsynaptic expression only modifies the gain, the locus has fundamental implications for circuits dynamics and computations in the brain. It therefore remains crucial for our understanding of neuronal circuits to know the locus of expression of long-term plasticity. One classical method for elucidating whether plasticity is pre- or postsynaptically expressed is based on analysis of the coefficient of variation (CV), which serves as a measure of noise levels of synaptic neurotransmission. Here, we provide a practical guide to using CV analysis for the purposes of exploring the locus of expression of long-term plasticity, primarily aimed at beginners in the field. We provide relatively simple intuitive background to an otherwise theoretically complex approach as well as simple mathematical derivations for key parametric relationships. We list important pitfalls of the method, accompanied by accessible computer simulations to better illustrate the problems (downloadable from GitHub), and we provide straightforward solutions for these issues.
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Affiliation(s)
- Jennifer A Brock
- Centre for Research in Neuroscience, Brain Repair and Integrative Neuroscience Program, Department of Medicine, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada.,Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
| | - Aurore Thomazeau
- Centre for Research in Neuroscience, Brain Repair and Integrative Neuroscience Program, Department of Medicine, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
| | - Airi Watanabe
- Centre for Research in Neuroscience, Brain Repair and Integrative Neuroscience Program, Department of Medicine, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada.,Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
| | - Sally Si Ying Li
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - P Jesper Sjöström
- Centre for Research in Neuroscience, Brain Repair and Integrative Neuroscience Program, Department of Medicine, The Research Institute of the McGill University Health Centre, Montreal General Hospital, Montreal, QC, Canada
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32
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Nour D, Shun-shin M, Fung M, Howard J, Ahmed Y, Allahwala U, Alzuhairi K, Bhindi R, Chamie D, Cook C, Doi S, Funayama N, Hansen P, Horinaka R, Ishibashi Y, Hijikata N, Kaihara T, Kawase Y, Koga M, Kotecha T, Kuwata S, Manica A, Matsuo H, Nakayama M, Nijjer S, Petraco R, Rajkumar C, Ramrakha P, Ruparelia N, Seligman H, Sen S, Takahashi T, Tanabe Y, Warisawa T, Watanabe A, Weaver J, Yong T, Francis D, Al-Lamee R. 834 How Accurately can Physicians Predict Invasive Physiology Using Coronary Angiography? Results of an International Multi-Centre Survey. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.841] [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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33
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Kitajima T, Hirose M, Kumagai R, Watanabe A, Esaki Y, Yamamoto S, Ono Y, Morishita H, Terabe M, Funahashi K, Iwata N. The reliability of the scale for symptom severity of circadian rhythm sleep-wake disorders – A preliminary study on draft versions. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.556] [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: 11/28/2022]
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34
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Ono Y, Kitajima T, Kumagai R, Hirose M, Watanabe A, Yamamoto S, Morishita H, Terabe M, Funahashi K, Iwata N. A case of mood disorder with alternating long and short sleep: a consideration of involvement of circadian disturbance and sleep homeostasis. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.804] [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: 11/30/2022]
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35
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Horino Y, Murakami M, Ishibashi M, Lee JH, Watanabe A, Matsumoto R, Abe H. Trialkylborane-Mediated Propargylation of Aldehydes Using γ-Stannylated Propargyl Acetates. Org Lett 2019; 21:9564-9568. [DOI: 10.1021/acs.orglett.9b03710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yoshikazu Horino
- Graduate School of Science and Engineering, University of Toyama 3190 Gofuku, Toyama 930-8555, Japan
| | - Miki Murakami
- Graduate School of Science and Engineering, University of Toyama 3190 Gofuku, Toyama 930-8555, Japan
| | - Mayo Ishibashi
- Graduate School of Science and Engineering, University of Toyama 3190 Gofuku, Toyama 930-8555, Japan
| | - Jun Hee Lee
- Department of Advanced Materials Chemistry, Dongguk University, Gyeongju Campus, Gyeongju 38066, Republic of Korea
| | - Airi Watanabe
- Graduate School of Science and Engineering, University of Toyama 3190 Gofuku, Toyama 930-8555, Japan
| | - Rio Matsumoto
- Graduate School of Science and Engineering, University of Toyama 3190 Gofuku, Toyama 930-8555, Japan
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36
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Miura H, Watanabe A, Okugawa M, Miura T, Koganeya T. Plant inspection by using a ground vehicle and an aerial robot: lessons learned from plant disaster prevention challenge in world robot summit 2018. Adv Robot 2019. [DOI: 10.1080/01691864.2019.1690575] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- H. Miura
- Aichi Institute of Technology, Toyota-shi, Japan
| | - A. Watanabe
- Aichi Institute of Technology, Toyota-shi, Japan
| | - M. Okugawa
- Aichi Institute of Technology, Toyota-shi, Japan
| | - T. Miura
- Sanritz Automation Co. Ltd., Toyota-shi, Japan
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37
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Ueno K, Takada H, Matsuo H, Kuru S, Goto K, Mitsui T, Ishizaki M, Sugimoto S, Ogata K, Matsumura T, Suwazono S, Furuya H, Watanabe A, Kawano Y, Yamamoto A, Sasagasako N, Arahata H. P.87Carnitine deficiency in patients with neuromuscular diseases on long-term tube feeding. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.116] [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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38
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Takashima H, Suzuki A, Sakurai S, Ando H, Nakano Y, Watanabe A, Mukai K, Wakabayashi H, Kojima H, Sawada H, Saka Y, Fujimoto M, Tanabe S, Ohashi H, Amano T. P5633Diagnostic impact of resting full-cycle ratio as newly developed non-hyperemic indices for physiological lesion assessment. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Although fractional flow reserve (FFR) is a gold standard method to evaluate functional lesion severity in the catheterization laboratory, the need of hyperemic condition limits the widespread adoption of FFR. Recently, the resting full-cycle ratio (RFR) which was newly developed resting indices was launched. It is unclear whether RFR as resting condition could assess physiological lesion severity of coronary artery stenosis. The aim of this study was to evaluate the diagnostic impact of RFR compared to FFR in entire range of coronary artery stenosis.
Method
A total of 53 patients with 70 lesions were enrolled in this study. The RFR was measured after adequately waiting for stable condition, while FFR was measured after intravenous administration of ATP (180mcg/kg/min). Lesions with FFR ≤0.80 were considered functionally significant coronary artery stenosis.
Results
In all lesions, reference diameter, diameter stenosis, lesion length, RFR, and FFR were 3.3±0.8mm, 44±12%, 14.6±7.2mm, 0.90±0.11, and 0.83±0.11, respectively. Functional significance was observed in 24 lesions (34%) of all lesions. The RFR showed a significant correlation with FFR (y = 0.800x + 0.239, R = 0.817, p<0.001). The Bland-Altman plot demonstrated a good agreement with a mean difference of 0.07 and a standard deviation of 0.06 between RFR and FFR across entire range of coronary artery stenosis. ROC curve analysis showed an excellent accuracy of RFR cut-off of ≤0.90 in predicting FFR ≤0.80 which had 78% sensitivity and 87% specificity (AUC 0.87, diagnostic accuracy 84%).
Conclusion
The RFR as newly resting indices is reliable to the assessment of functional lesion severity. This physiology-based approach may be a possible alternative method for FFR measurements in daily practice.
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Affiliation(s)
| | - A Suzuki
- Aichi Medical University, Nagakute, Japan
| | - S Sakurai
- Aichi Medical University, Nagakute, Japan
| | - H Ando
- Aichi Medical University, Nagakute, Japan
| | - Y Nakano
- Aichi Medical University, Nagakute, Japan
| | - A Watanabe
- Aichi Medical University, Nagakute, Japan
| | - K Mukai
- Aichi Medical University, Nagakute, Japan
| | | | - H Kojima
- Aichi Medical University, Nagakute, Japan
| | - H Sawada
- Aichi Medical University, Nagakute, Japan
| | - Y Saka
- Aichi Medical University, Nagakute, Japan
| | - M Fujimoto
- Aichi Medical University, Nagakute, Japan
| | - S Tanabe
- Aichi Medical University, Nagakute, Japan
| | - H Ohashi
- Aichi Medical University, Nagakute, Japan
| | - T Amano
- Aichi Medical University, Nagakute, Japan
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39
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Hosoda K, Azuma M, Katada C, Ishido K, Niihara M, Ushiku H, Sakuraya M, Washio M, Wada T, Watanabe A, Harada H, Tanabe S, Koizumi W, Yamashita K, Hiki N, Watanabe M. A phase I study of docetaxel/oxaliplatin/S-1 (DOS) combination neoadjuvant chemotherapy for patients with locally advanced adenocarcinoma of the esophagogastric junction. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.114] [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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40
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Ohori K, Yano T, Katano S, Honma S, Shimomura K, Watanabe A, Ishigo T, Fujito T, Nagano N, Koyama M, Kouzu H, Hashimoto A, Miura T. P4537Impact of body composition analysis on prediction of short-term readmission events in heart failure: muscle wasting vs. obesity. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Obesity, defined as higher body mass index (BMI), is associated with better prognosis in patients with chronic heart failure (CHF), though the presence of obesity is a risk factor of development of CHF (Obesity paradox). On the other hand, muscle wasting, i.e. reduction in skeletal muscle mass, is frequently observed in CHF, leading to lower exercise capacity and poor cardiovascular outcome.
Purpose
The aim of this study was to examine whether analysis of body composition improves prediction of short-term readmission rates in patients with CHF.
Methods
We retrospectively analyzed data for 167 consecutive HF patients who were admitted to our institute for management of HF and received a Dual-energy X-ray absorptiometry (DEXA) scan. Muscle wasting was defined as DEXA-measured appendicular skeletal muscle mass index <7.0 kg/m2 in male and <5.4 kg/m2 in female according to the Asian Working Group for Sarcopenia criteria. Obesity was defined according to the criteria by the use of DEXA-measured percent body fat mass: >25% in male, >30% in female. The primary endpoint was readmission due to cardiac events including worsening heart failure, arrhythmia, and cardiopulmonary arrest during a 180-days follow-up period after discharge.
Results
The mean age of the patients was 74±13 years and 46% of them were male. The mean BMI was 21.8±3.8 kg/m2. Forty-seven percent of the patients were classified as NYHA functional class III. The most frequent etiology of HF was cardiomyopathy (30%), followed by ischemic heart disease (27%) and valvular heart disease (27%). The prevalence of muscle wasting and that of obesity were 69% and 59%, respectively. Patients with muscle wasting had lower BMI level, higher prevalence of NYHA functional class III and diabetes mellitus compared with those without muscle wasting. On the other hand, patients with obesity had higher prevalence of hypertension and dyslipidemia, higher level of BMI, fasting plasma insulin and triglyceride, and lower level of HDL-cholesterol compared with those without obesity. During the follow-up period, 34 patients (19%) were re-hospitalized due to cardiac events. Kaplan-Meier survival curves showed that patients with obesity had a significantly lower readmission rate during a 180-days follow-up period than did the patients without obesity (14.3% vs. 29.0%, Log-Rank test, p<0.01). There was no difference in readmission rates between patients with and without muscle wasting (20.0% vs. 21.2%, p=0.88). In multivariate Cox regression analyses adjusted for age, sex, diabetes, and renal function, obesity was independently associated with lower readmission rates (hazard ratio 0.45, 95% confidence interval 0.22–0.93). However, the association between obesity and readmission rate was lost after the adjustment for NT-proBNP levels.
Conclusion
Body composition analysis by DEXA enables to find CHF patients with increased fat mass who have lower risk of short-term readmission.
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Affiliation(s)
- K Ohori
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Yano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - S Katano
- Sapporo Medical University, Division of Rehabilitation, Sapporo, Japan
| | - S Honma
- Sapporo Medical University, Division of Rehabilitation, Sapporo, Japan
| | - K Shimomura
- Sapporo Medical University, Division of Rehabilitation, Sapporo, Japan
| | - A Watanabe
- Sapporo Medical University, Division of Nursing, Sapporo, Japan
| | - T Ishigo
- Sapporo Medical University, Division of Hospital Pharmacy, Sapporo, Japan
| | - T Fujito
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - N Nagano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - M Koyama
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - H Kouzu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - A Hashimoto
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Miura
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
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41
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Shimomura K, Katano S, Yano T, Ohori K, Honma S, Watanabe A, Ishigo T, Fujito T, Nagano N, Koyama M, Kouzu H, Hashimoto A, Miura T. P1538Low energy intake predicts readmission of elderly heart failure patients independently of nutritional status. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Malnutrition is frequently present and closely associated with poor clinical outcomes in elderly heart failure (HF) patients. Our previous study showed that low energy intake (EI) is associated with worse functional status in elderly HF inpatients after cardiac rehabilitation, but significance of EI in prediction of hospital readmission has not been elucidated fully.
Purpose
We examined whether low EI is a predictor of readmission for cardiac events in elderly HF patients.
Methods
We retrospectively retrieved data for 298 HF patients aged ≥65 years (median age of 77 years, interquartile range [IQR]: 71 - 82, female: 53%) who admitted to our institute for diagnosis and treatment of HF. Medical records were reviewed with regard to demography, medical history, comorbidities, medications, laboratory data, echocardiograms, functional status, nutritional status and total energy intake. Nutritional status was assessed using the Mini Nutritional Assessment Short Form (MNA-SF) and total EI per day were calculated at discharge by a registered dietitian and a trained physical therapist. The primary endpoint was readmission due to cardiovascular events including worsening HF, arrhythmia, angina pectoris and myocardial infarction during a 1-year follow-up period.
Results
The median period of follow-up was 235 days (IQR: 78–365 days). The 1-year readmission rate for cardiovascular events was 54.4%. The cutoff values of MNA-SF score and EI, calculated by ROC curve analysis to predict the primary endpoint, were 7 points (area under the curve [AUC]: 0.59, sensitivity: 0.65, specificity: 0.50) and 31.8 kcal/kg/day (AUC: 0.59, sensitivity: 0.83, specificity: 0.35), respectively. Patients with low MNF-SF score (≤7) or low EI (≤31.8 kcal/kg/day) had significantly higher readmission rate during a 1-year follow-up period than did the patients with high MNF-SF score or EI (MNA-SF: 60.7% vs. 45.6%, p<0.01, EI: 60.4% vs. 36.8%, p<0.01), respectively. When patients were classified into four groups using cutoff values of MNA-SF score and EI, 1-year readmission rate was significantly higher in patients with low EI than in those with high EI regardless of MNF-SF scores. In multivariate Cox proportional hazard analyses adjusted for known prognostic factors in addition to age and gender, hazard ratios (HR) were significantly higher in patients with high MNA-SF score and low EI (adjusted HR: 2.81, 95% confidential interval [CI]: 1.15 - 9.32, p=0.02) and low MNA-SF score (≤7) and low EI (adjusted HR: 4.16, 95% CI: 1.72 - 13.72, p<0.01) than those with high MNA-SF score and high EI.
Kaplan-Meier curves of readmission rates
Conclusions
Low energy intake is a nutritional status-independent predictor of 1-year readmission rate in elderly HF patients.
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Affiliation(s)
- K Shimomura
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - S Katano
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - T Yano
- Sapporo Medical University School of Medicine, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - K Ohori
- Hokkaido Cardiovascular Hospital, Department of Cardiology, Sapporo, Japan
| | - S Honma
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - A Watanabe
- Sapporo Medical University Hospital, Division of Nursing, Sapporo, Japan
| | - T Ishigo
- Sapporo Medical University Hospital, Department of Hospital Pharmacy, Sapporo, Japan
| | - T Fujito
- Sapporo Medical University School of Medicine, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - N Nagano
- Sapporo Medical University School of Medicine, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - M Koyama
- Sapporo Medical University School of Medicine, Department of Public Health, Sapporo, Japan
| | - H Kouzu
- Sapporo Medical University School of Medicine, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - A Hashimoto
- Sapporo Medical University School of Medicine, Division of Health Care Administration and Management, Sapporo, Japan
| | - T Miura
- Sapporo Medical University School of Medicine, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
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42
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Uchida H, Kamata M, Mizukawa I, Watanabe A, Agematsu A, Nagata M, Fukaya S, Hayashi K, Fukuyasu A, Tanaka T, Ishikawa T, Ohnishi T, Tada Y. Real-world effectiveness and safety of dupilumab for the treatment of atopic dermatitis in Japanese patients: a single-centre retrospective study. Br J Dermatol 2019; 181:1083-1085. [PMID: 31127860 DOI: 10.1111/bjd.18163] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- H Uchida
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - M Kamata
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - I Mizukawa
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - A Watanabe
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - A Agematsu
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - M Nagata
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - S Fukaya
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - K Hayashi
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - A Fukuyasu
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - T Tanaka
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - T Ishikawa
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - T Ohnishi
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Y Tada
- Department of Dermatology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
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Abstract
Advances in imaging technologies, such as computed tomography (CT) and surface scanning, have facilitated the rapid generation of large datasets of high-resolution three-dimensional (3D) specimen reconstructions in recent years. The wealth of phenotypic information available from these datasets has the potential to inform our understanding of morphological variation and evolution. However, the ever-increasing ease of compiling 3D datasets has created an urgent need for sophisticated methods of capturing high-density shape data that reflect the biological complexity in form. Landmarks often do not take full advantage of the rich shape information available from high-resolution 3D specimen reconstructions, as they are typically restricted to sutures or processes that can be reliably identified across specimens and exclude most of the surface morphology. The development of sliding and surface semilandmark techniques has greatly enhanced the quantification of shape, but their application to diverse datasets can be challenging, especially when dealing with the variable absence of some regions within a structure. Using comprehensive 3D datasets of crania that span the entire clades of birds, squamates and caecilians, we demonstrate methods for capturing morphology across incredibly diverse shapes. We detail many of the difficulties associated with applying semilandmarks to comparable regions across highly disparate structures, and provide solutions to some of these challenges, while considering the consequences of decisions one makes in applying these approaches. Finally, we analyze the benefits of high-density sliding semilandmark approaches over landmark-only studies for capturing shape across diverse organisms and discuss the promise of these approaches for the study of organismal form.
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Affiliation(s)
- C Bardua
- Department of Life Sciences, Natural History Museum, Cromwell Rd, Kensington, London, SW7 5BD, UK.,Department of Genetics, Evolution & Environment, University College London, Gower St, Bloomsbury, London, WC1E 6BT, UK
| | - R N Felice
- Centre for Integrative Anatomy, Department of Cell and Developmental Biology, University College London, Gower St, Bloomsbury, London, WC1E 6BT, UK
| | - A Watanabe
- Department of Life Sciences, Natural History Museum, Cromwell Rd, Kensington, London, SW7 5BD, UK.,Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Northern Blvd, Old Westbury, NY 11568, USA.,Division of Paleontology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA
| | - A-C Fabre
- Department of Life Sciences, Natural History Museum, Cromwell Rd, Kensington, London, SW7 5BD, UK
| | - A Goswami
- Department of Life Sciences, Natural History Museum, Cromwell Rd, Kensington, London, SW7 5BD, UK.,Department of Genetics, Evolution & Environment, University College London, Gower St, Bloomsbury, London, WC1E 6BT, UK
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44
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Usuki K, Ueda Y, Fujita J, Matsumura I, Aotsuka N, Sekiguchi N, Nakazato T, Iwasaki H, Watanabe A, Sugimoto S, Koga-Yamakawa E, Naoe T, Kizaki M, Heike Y, Miyazaki Y, Akashi K. PS1344 PHASE 1/2 STUDY OF DSP-7888 IN PATIENTS WITH HIGHER-RISK (HR) MYELODYSPLASTIC SYNDROMES (MDS) AFTER FAILURE OF AZACITIDINE (AZA) THERAPY. Hemasphere 2019. [DOI: 10.1097/01.hs9.0000563656.45660.98] [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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45
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Kumagai S, Asakawa M, Kameda T, Saito Y, Watanabe A, Watanabe C, Teramae N, Yoshioka T. Hydrogen and steam injected tandem μ-reactor GC/FID system: phenol recovery from bisphenol A and alkylphenols using Ni/Y zeolite. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00299e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Hydrogen and steam injected tandem μ-reactor-GC/FID system achieved online quantification of products from hydrogenation and dealkylation of bisphenol A and alkylphenols using Ni/Y zeolite.
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Affiliation(s)
- S. Kumagai
- Graduate School of Environmental Studies
- Tohoku University
- Sendai
- Japan
| | - M. Asakawa
- Graduate School of Environmental Studies
- Tohoku University
- Sendai
- Japan
| | - T. Kameda
- Graduate School of Environmental Studies
- Tohoku University
- Sendai
- Japan
| | - Y. Saito
- Graduate School of Environmental Studies
- Tohoku University
- Sendai
- Japan
| | | | | | - N. Teramae
- Frontier Laboratories Ltd
- Koriyama
- Japan
- Department of Chemistry
- Graduate School of Science
| | - T. Yoshioka
- Graduate School of Environmental Studies
- Tohoku University
- Sendai
- Japan
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46
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Watanabe A, Ota T, Kanno Y, Miki N. Enfold-type connecting system of artificial blood vessels for micro implantable dialysis device. Annu Int Conf IEEE Eng Med Biol Soc 2018; 2018:5810-5813. [PMID: 30441656 DOI: 10.1109/embc.2018.8513545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This paper reports the connecting mechanism for the artificial blood vessels along with the recent development of the micro implantable dialysis device. Our group has been studying the micro implantable dialysis device, which will drastically improve the quality of life of dialysis patients. We expect to replace the device every couple of years, which will involve surgery. In order to simplify the surgery to reduce the load to the patients, we develop a connector for the artificial vessels, which allows the exchange of the device by low invasive surgery. The connector needs to be designed not to induce blood coagulation. We designed a connecting mechanism that enfolds the artificial vessels to allow blood to contact only to the surface of the artificial vessels. In order to verify effectiveness of the proposed connecting mechanism, we investigated the connector surfaces with SEM after blood circulation tests. Then, we evaluated blood coagulation capacity of the connecting system as well as the set of the connecting system and the micro dialysis device with respect to the activated partial thromboplastin time (APTT). No remarkable increase of blood coagulation at the connecting point was observed after 72 hours of blood circulation tests. Short-term experiments for 120 minutes to evaluate APTT showed a small decrease of APTT, which needs to be further investigated in a longer-term experiments.
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47
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Arahata H, Miyoshi A, Watanabe A, Kawano Y, Yamamoto A, Sasagasako N. DUCHENNE MUSCULAR DYSTROPHY – CLINICAL. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.050] [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: 11/24/2022]
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48
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Minegaki T, Suzuki A, Mori M, Tsuji S, Yamamoto S, Watanabe A, Tsuzuki T, Tsunoda T, Yamamoto A, Tsujimoto M, Nishiguchi K. Histone deacetylase inhibitors sensitize 5-fluorouracil-resistant MDA-MB-468 breast cancer cells to 5-fluorouracil. Oncol Lett 2018; 16:6202-6208. [PMID: 30333885 DOI: 10.3892/ol.2018.9388] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 04/23/2018] [Accepted: 08/23/2018] [Indexed: 11/06/2022] Open
Abstract
Resistance to 5-fluorouracil (5-FU) is a serious problem in cancer therapy and overcoming it is required in order to improve the efficacy of cancer chemotherapy. Histone deacetylase (HDAC) inhibitors are used in cancer treatments and, recently, it has been reported that HDAC inhibitors can overcome resistance to various anti-cancer drugs in vitro. In the present study, a 5-FU-resistant breast cancer cell line was established, and the effects of HDAC inhibitors in these cells were examined. The 5-FU-resistant cell line MDA-MB-468 (MDA468/FU) was established by continuous exposure of the parental cells to 5-FU. This subline was characterized by high resistance to 5-FU, higher mRNA expression levels of thymidylate synthetase and dihydropyrimidine dehydrogenase (DPD), and lower mRNA expression levels of uridine monophosphate synthetase (UMPS) than the parental cells. Gimeracil, a DPD inhibitor, did not affect the sensitivity of MDA468/FU cells to 5-FU. Oteracil, a UMPS inhibitor, decreased the cytotoxicity of 5-FU in MDA468 cells, but not in MDA468/FU cells. The HDAC inhibitors, valproic acid and suberanilohydroxamic acid sensitized the two cell lines to 5-FU in a concentration-dependent manner. In conclusion, the results of the present study revealed that HDAC inhibitors increase the sensitivity to 5-FU in 5-FU-sensitive and -resistant cells.
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Affiliation(s)
- Tetsuya Minegaki
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Ai Suzuki
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Misato Mori
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Shiori Tsuji
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Satoshi Yamamoto
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Airi Watanabe
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Tomoyo Tsuzuki
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Takaki Tsunoda
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Asuka Yamamoto
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Masayuki Tsujimoto
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Kohshi Nishiguchi
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
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49
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Affiliation(s)
- A. Uchibori
- Japan Atomic Energy Agency, Fast Reactor Cycle System Research and Development Center, 4002 Narita, O-arai, Ibaraki 311-1393, Japan
| | - A. Watanabe
- NDD Corporation, Fast Reactor Cycle System Research and Development Center, 1-1-6 Jonan, Mito, Ibaraki 310-0803, Japan
| | - T. Takata
- Japan Atomic Energy Agency, Fast Reactor Cycle System Research and Development Center, 4002 Narita, O-arai, Ibaraki 311-1393, Japan
| | - H. Ohshima
- Japan Atomic Energy Agency, Fast Reactor Cycle System Research and Development Center, 4002 Narita, O-arai, Ibaraki 311-1393, Japan
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50
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Koizumi K, Hosiai M, Katsumata N, Toda T, Kise H, Hasebe Y, Kono Y, Sunaga Y, Yoshizawa M, Watanabe A, Moriguchi T, Matsuda K, Sugita K. P3794Plasma exchange regulates CD14+CD16+ activated monocytes and CD4+CD25+FOXP3+ regulatory T cells in Kawasaki disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Koizumi
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - M Hosiai
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - N Katsumata
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - T Toda
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - H Kise
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - Y Hasebe
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - Y Kono
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - Y Sunaga
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - M Yoshizawa
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - A Watanabe
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - T Moriguchi
- Faculty of Medicine, University of Yamanashi, Department of Emergency and Critical Care Medicine, Chuo, Yamanashi, Japan
| | - K Matsuda
- Faculty of Medicine, University of Yamanashi, Department of Emergency and Critical Care Medicine, Chuo, Yamanashi, Japan
| | - K Sugita
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
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