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Matsumoto H, Dickson ME, Stephenson WJ, Thompson CF, Young AP. Modeling future cliff-front waves during sea level rise and implications for coastal cliff retreat rates. Sci Rep 2024; 14:7810. [PMID: 38565914 PMCID: PMC10987572 DOI: 10.1038/s41598-024-57923-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/22/2024] [Indexed: 04/04/2024] Open
Abstract
It is often assumed that future coastal cliff retreat rates will accelerate as global sea level rises, but few studies have investigated how SLR (sea level rise) might change cliff-front wave dynamics. Using a new simple numerical model, this study simulates the number and type (breaking, broken, or unbroken) of cliff-front waves under future SLR scenarios. Previous research shows breaking waves deliver more energy to cliffs than broken waves, and unbroken waves generate minimal impact. Here, we investigated six cliff-platform profiles from three regions (USA, New Zealand, and UK) with varied tidal ranges and wave climates. Model inputs included 2013-2100 hindcast/forecast incident wave height and tidal water level, and three future SLR scenarios. Results show the number of both cliff-front breaking and broken waves generally increase for a high-elevation (relative to tide) cliff-platform junction. In contrast, breaking/broken wave occurrence decrease by 38-92% for a near-horizontal shore platform with a low-elevation cliff-platform junction under a high SRL scenario, leading to high (96-97%) unbroken wave occurrence. Overall, results suggest the response of cliff-front waves to future SLR is complex and depends on shore platform geometries and SLR scenarios, indicating that future cliff retreat rates may not homogeneously accelerate under SLR.
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Affiliation(s)
- H Matsumoto
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA.
| | - M E Dickson
- The University of Auckland, Auckland, New Zealand
| | | | - C F Thompson
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
| | - A P Young
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
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Otonari-Yamamoto M, Nakajima K, Sato H, Wada H, Matsumoto H, Nishiyama A, Hoshino T, Matsuzaka K, Katakura A, Goto TK. Dentigerous cysts suspected the other odontogenic lesions on panoramic radiography and CT. Oral Radiol 2024; 40:319-326. [PMID: 38165531 DOI: 10.1007/s11282-023-00732-4] [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: 05/25/2023] [Accepted: 11/26/2023] [Indexed: 01/03/2024]
Abstract
Dentigerous cysts are known as the second most common type of cyst in the jaws. The cyst is one of the lesions occurred frequently in the posterior body of the mandible and is often related to the unerupted third molar and forms around the crown of the unerupted tooth attaching at the cementoenamel junction. Such characteristic appearances are the diagnostic points differentiating from ameloblastoma or odontogenic keratocyst. However, it would be hard for us to diagnose it as a dentigerous cyst if the lesion does not show its typical appearance. We experienced two cases of dentigerous cysts which did not form around the crown of the unerupted tooth on radiologically. Both cysts were relatively large and resorbed adjacent teeth roots. Therefore, an ameloblastoma or an odontogenic keratocyst was suspected rather than a dentigerous cyst as the imaging diagnosis. The biopsy revealed that the lesion was a "dentigerous cyst" in one of the cases and "developmental cyst with inflammation" in another case. After the excision, the histopathological diagnosis was a dentigerous cyst with inflammation in both cases. This report shows the two cases of dentigerous cysts focusing on panoramic radiography and CT images. Also, we discuss the differential diagnosis by reconsidering those diagnostic points.
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Affiliation(s)
- Mika Otonari-Yamamoto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, 2-9-18 Kanda Misaki-Cho, Chiyoda-Ku, Tokyo, 101-0061, Japan.
| | - Kei Nakajima
- Department of Pathology, Tokyo Dental College, Tokyo, Japan
| | - Hitomi Sato
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, 2-9-18 Kanda Misaki-Cho, Chiyoda-Ku, Tokyo, 101-0061, Japan
| | - Hirotaka Wada
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, 2-9-18 Kanda Misaki-Cho, Chiyoda-Ku, Tokyo, 101-0061, Japan
| | - Hideki Matsumoto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, 2-9-18 Kanda Misaki-Cho, Chiyoda-Ku, Tokyo, 101-0061, Japan
| | - Akihiro Nishiyama
- Department of Oral Pathological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - Teruhide Hoshino
- Department of Oral Pathological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | | | - Akira Katakura
- Department of Oral Pathological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - Tazuko K Goto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, 2-9-18 Kanda Misaki-Cho, Chiyoda-Ku, Tokyo, 101-0061, Japan
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Wada H, Matsumoto H, Takagiwa M, Sato H, Ishiguchi K, Inoue A, Goto TK. Differences in time-intensity sensory profiles of sweet taste intensity of glucose between older and young adults. Front Nutr 2024; 11:1273055. [PMID: 38606019 PMCID: PMC11006984 DOI: 10.3389/fnut.2024.1273055] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 03/04/2024] [Indexed: 04/13/2024] Open
Abstract
Background To understand age-related changes in sweet taste perception in daily life, it is important to understand taste intensity at the suprathreshold level. Previous studies have attempted to characterize the temporal aspects of human taste perception in terms of time-intensity evaluations. The perception of dynamic taste intensity in older adults increases slowly for salty taste; however, there have been no previous studies on time-intensity sensory evaluation of sweet taste in older adults. We hypothesized that older adults perceive sweet taste intensity more slowly than young adults. Methods Fifty young and 40 older adults participated in the study and glucose solutions of 0.6 M and 1.5 M were used as stimuli. The study comprised two experiments: (1) a cup tasting test (static taste perception in the mouth), and (2) a time-intensity sensory evaluation, in which the solutions were presented using a custom-made delivery system. The intra-oral device was made to fit each participant's dentition. Further, the level of gag reflex was taken into consideration for each participant in the design of the intra-oral device. A suction tube was placed across the posterior tongue near the throat to remove solution and saliva. The solution delivery system was controlled by an original computer program. Results Older adults presented significantly different maximum intensity timing and slope for both concentrations compared with young adults (slope for 1.5 M, p < 0.01; others, p < 0.05). No significant differences were found between the older and young adults for reaction timing and maximum intensity. Conclusion We conclude that older adults perceived sweetness more slowly than young adults, and ultimately perceived almost the same intensity as young adults. This is the first reported characterization of the time-intensity profile of sweet taste intensity of glucose in older adults. Using a standardized system enabled us to assess and compare feedback on taste intensities among different age groups in real-time. Based on this, we recommend older adults "savor" to perceive sweet tastes at the same level experienced by young adults.
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Affiliation(s)
- Hirotaka Wada
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
| | - Hideki Matsumoto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
| | - Mutsumi Takagiwa
- Laboratory of Mathematics, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
| | - Hitomi Sato
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
- Tokyo Dental College Research Branding Project, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
| | - Kyoko Ishiguchi
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
| | - Aya Inoue
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
| | - Tazuko K. Goto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
- Tokyo Dental College Research Branding Project, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
- Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR, China
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Dickson ME, Matsumoto H, Stephenson WJ, Swirad ZM, Thompson CF, Young AP. Sea-level rise may not uniformly accelerate cliff erosion rates. Nat Commun 2023; 14:8485. [PMID: 38129403 PMCID: PMC10739881 DOI: 10.1038/s41467-023-44149-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Affiliation(s)
- M E Dickson
- School of Environment, The University of Auckland, Auckland, New Zealand.
| | - H Matsumoto
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
| | - W J Stephenson
- School of Geography, University of Otago, Dunedin, New Zealand
| | - Z M Swirad
- Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland
| | - C F Thompson
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
| | - A P Young
- Scripps Institution of Oceanography, University of California San Diego, San Diego, USA
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Matsumoto H, Shinya Y, Miyawaki S, Shin M, Koizumi S, Sato D, Hinata M, Ikemura M, Kiyofuji S, Kin T, Iwanaga M, Shimizu M, Nakatomi H, Saito N. White epidermoid cyst transformation after stereotactic radiosurgery: illustrative case. J Neurosurg Case Lessons 2023; 5:CASE2376. [PMID: 37334973 PMCID: PMC10550655 DOI: 10.3171/case2376] [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] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/04/2023] [Indexed: 06/21/2023]
Abstract
BACKGROUND White epidermoid cysts (WECs) are a rare type of epidermoid cyst with atypical radiological features. The epidemiological aspects and mechanisms of their onset remain unknown. Herein, the authors report a unique case of WEC transformation from a typical epidermoid cyst after stereotactic radiosurgery (SRS), confirmed by radiological and pathological findings. OBSERVATIONS The case involved a 78-year-old man with a history of 2 surgeries for a left cerebellopontine angle typical epidermoid cyst 23 years earlier and SRS using the CyberKnife for recurrent trigeminal neuralgia (TN) 14 years earlier. The tumor with high intensity on T1-weighted imaging, low intensity on T2-weighted imaging, without restriction on diffusion-weighted imaging had gradually enlarged after SRS. Therefore, a salvage surgery was performed via a left suboccipital craniotomy, and the intraoperative findings showed a cyst with a brown, viscous liquid component, consistent with those of WECs. Histopathologically, keratin calcification and hemorrhage were identified, leading to a diagnosis of WEC. The postoperative course was uneventful, and the TN resolved. No tumor recurrence was recorded at 2 years postoperatively. LESSONS To the best of the authors' knowledge, this is the first world case of WEC transformation from a typical epidermoid cyst after SRS, confirmed by radiological and pathological findings. Radiation effects could have been involved in this transformation.
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Affiliation(s)
| | | | | | - Masahiro Shin
- Departments of Neurosurgery and
- Department of Neurosurgery, Teikyo University Hospital, Tokyo, Japan
| | | | | | | | - Masako Ikemura
- Pathology, The University of Tokyo Hospital, Tokyo, Japan
| | | | | | - Mototaro Iwanaga
- Department of Neurosurgery, Kanto Neurosurgical Hospital, Kumagaya, Japan; and
| | - Masahiro Shimizu
- Department of Neurosurgery, Kanto Neurosurgical Hospital, Kumagaya, Japan; and
| | - Hirofumi Nakatomi
- Departments of Neurosurgery and
- Department of Neurosurgery, Kyorin University Hospital, Tokyo, Japan
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Miura N, Morishita K, Yasuda T, Akiduki S, Matsumoto H. Subchronic tolerance trials of graded oral supplementation with ornithine hydrochloride or citrulline in healthy adults. Amino Acids 2023; 55:299-311. [PMID: 36571619 PMCID: PMC9791970 DOI: 10.1007/s00726-022-03227-4] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/13/2022] [Indexed: 12/27/2022]
Abstract
Ornithine and citrulline are amino acids used in dietary supplements and nutritional products consumed by healthy consumers, but the safe supplementation levels of these compounds are unknown. The objective of this study was to conduct two 4-week clinical trials to evaluate the safety and tolerability of graded dosages of oral ornithine (as hydrochloride) and citrulline. Healthy male adults (n = 60, age 41.4 ± 1.5 years) completed graded dosages of either ornithine hydrochloride (3.2, 6, 9.2, and 12 g/day) or citrulline (6, 12, 18, and 24 g/day) supplement for 4 weeks with 2-week wash-out periods in between. Primary outcomes included vitals, a broad spectrum of circulating biochemical analytes, body weight, sleep quality, and mental self-assessment. In the ornithine hydrochloride supplementation group, minor increase in plasma aspartic acid and glutamic acid concentrations was observed at the highest intake dosages. In the citrulline supplementation group, minor changes in laboratory data for serum lactate dehydrogenase and plasma amino acid concentration of lysine, methionine, threonine, aspartic acid, glutamic acid, glutamine and ornithine, arginine, and citrulline itself were measured. No other changes in measured parameters were observed, and study subjects tolerated 4-week-long oral supplementation of ornithine hydrochloride or citrulline without treatment-related adverse events. A clinical, no-observed-adverse-effect-level (NOAEL) of ornithine hydrochloride and citrulline supplementation in healthy adult males was determined to be 12 g/day and 24 g/day (4 weeks), respectively.
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Affiliation(s)
- Naoki Miura
- Miura Medical Clinic, Higashitenma, Osaka, Japan
| | - Koji Morishita
- Japan Branch of International Council for Amino Acid Science (ICAAS), Hatchobori, Tokyo, Japan
| | - Takamasa Yasuda
- Japan Branch of International Council for Amino Acid Science (ICAAS), Hatchobori, Tokyo, Japan
| | - Saori Akiduki
- Japan Branch of International Council for Amino Acid Science (ICAAS), Hatchobori, Tokyo, Japan
| | - Hideki Matsumoto
- Japan Branch of International Council for Amino Acid Science (ICAAS), Hatchobori, Tokyo, Japan.
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Matsuoka K, Takado Y, Tagai K, Kubota M, Sano Y, Takahata K, Ono M, Seki C, Matsumoto H, Endo H, Shinotoh H, Sahara Y, Obata T, Near J, Kawamura K, Zhang MR, Suhara T, Shimada H, Higuchi M. Two pathways differentially linking tau depositions, oxidative stress, and neuronal loss to apathetic phenotypes in progressive supranuclear palsy. J Neurol Sci 2023; 444:120514. [PMID: 36473346 DOI: 10.1016/j.jns.2022.120514] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/21/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022]
Abstract
Patients with progressive supranuclear palsy (PSP) frequently exhibit apathy but the neuropathological processes leading to this phenotype remain elusive. We aimed to examine the involvement of tau protein depositions, oxidative stress (OS), and neuronal loss in the apathetic manifestation of PSP. Twenty patients with PSP and twenty-three healthy controls were enrolled. Tau depositions and brain volumes were evaluated via positron-emission tomography (PET) using a specific probe, 18F-PM-PBB3, and magnetic resonance imaging, respectively. Glutathione (GSH) levels in the anterior and posterior cingulate cortices were quantified by magnetic resonance spectroscopy. Tau pathologies were observed in the subcortical and cortical structures of the patient brains. The angular gyrus exhibited a positive correlation between tau accumulations and apathy scale (AS). Although PSP cases did not show GSH level alterations compared with healthy controls, GSH levels in posterior cingulate cortex were correlated with AS and tau depositions in the angular gyrus. Marked atrophy was observed in subcortical areas, and gray matter volumes in the inferior frontal gyrus and anterior cingulate cortex were positively correlated with AS but showed no correlation with tau depositions and GSH levels. Path analysis highlighted synergistic contributions of tau pathologies and GSH reductions in the posterior cortex to AS, in parallel with associations of gray matter atrophy in the anterior cortex with AS. Apathetic phenotypes may arise from PET-visible tau aggregation and OS compromising the neural circuit resilience in the posterior cortex, along with neuronal loss, with neither PET-detectable tau pathologies nor OS in the anterior cortex.
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Affiliation(s)
- Kiwamu Matsuoka
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan; Department of Psychiatry, Nara Medical University, Kashihara, Japan
| | - Yuhei Takado
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan.
| | - Kenji Tagai
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Manabu Kubota
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan; Department of Psychiatry, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yasunori Sano
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Keisuke Takahata
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Maiko Ono
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Chie Seki
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Hideki Matsumoto
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan; Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Tokyo, Japan
| | - Hironobu Endo
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Hitoshi Shinotoh
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan; Neurology Clinic, Chiba, Chiba, Japan
| | - Yasuka Sahara
- Department of Molecular Imaging and Theranostics, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Takayuki Obata
- Department of Molecular Imaging and Theranostics, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Jamie Near
- Douglas Mental Health University Institute and Department of Psychiatry, McGill University, Quebec City, Canada
| | - Kazunori Kawamura
- Department of Advanced Nuclear Medicine Sciences, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Ming-Rong Zhang
- Department of Advanced Nuclear Medicine Sciences, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Tetsuya Suhara
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Hitoshi Shimada
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan; Department of Functional Neurology & Neurosurgery, Center for Integrated Human Brain Science, Brain Research Institute, Niigata University, Niigata, Japan.
| | - Makoto Higuchi
- Department of Functional Brain Imaging, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
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Matsumoto H, Tagai K, Endo H, Matsuoka K, Takado Y, Kokubo N, Shimada H, Goto T, Goto TK, Higuchi M. Association of Tooth Loss with Alzheimer's Disease Tau Pathologies Assessed by Positron Emission Tomography. J Alzheimers Dis 2023; 96:1253-1265. [PMID: 37980663 PMCID: PMC10741329 DOI: 10.3233/jad-230581] [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] [Accepted: 09/24/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Deterioration of the oral environment is one of the risk factors for dementia. A previous study of an Alzheimer's disease (AD) model mouse suggests that tooth loss induces denervation of the mesencephalic trigeminal nucleus and neuroinflammation, possibly leading to accelerated tau dissemination from the nearby locus coeruleus (LC). OBJECTIVE To elucidate the relevance of oral conditions and amyloid-β (Aβ) and tau pathologies in human participants. METHODS We examined the number of remaining teeth and the biofilm-gingival interface index in 24 AD-spectrum patients and 19 age-matched healthy controls (HCs). They also underwent positron emission tomography (PET) imaging of Aβ and tau with specific radiotracers, 11C-PiB and 18F-PM-PBB3, respectively. All AD-spectrum patients were Aβ-positive, and all HCs were Aβ-negative. We analyzed the correlation between the oral parameters and radiotracer retention. RESULTS No differences were found in oral conditions between the AD and HC groups. 11C-PiB retentions did not correlate with the oral indices in either group. In AD-spectrum patients, brain-wide, voxel-based image analysis highlighted several regions, including the LC and associated brainstem substructures, as areas where 18F-PM-PBB3 retentions negatively correlated with the remaining teeth and revealed the correlation of tau deposits in the LC (r = -0.479, p = 0.018) primarily with the hippocampal and neighboring areas. The tau deposition in none of the brain regions was associated with the periodontal status. CONCLUSIONS Our findings with previous preclinical evidence imply that tooth loss may enhance AD tau pathogenesis, promoting tau spreading from LC to the hippocampal formation.
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Affiliation(s)
- Hideki Matsumoto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Tokyo, Japan
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Kenji Tagai
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
- Department of Psychiatry, The Jikei University of Medicine, Tokyo, Japan
| | - Hironobu Endo
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Kiwamu Matsuoka
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Yuhei Takado
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Naomi Kokubo
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - Hitoshi Shimada
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
- Department of Functional Neurology & Neurosurgery, Center for Integrated Human Brain Science, Brain Research Institute, Niigata University, Niigata, Japan
| | - Tetsuya Goto
- Department of Oral Anatomy and Cell Biology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tazuko K. Goto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Tokyo, Japan
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
- Tokyo Dental College Research Branding Project, Tokyo Dental College, Tokyo, Japan
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Makoto Higuchi
- Department of Functional Brain Imaging Research, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, Chiba, Japan
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Amamoto R, Shimamoto K, Suwa T, Park S, Matsumoto H, Shimizu K, Katto M, Makino H, Matsubara S, Aoyagi Y. Relationships between dietary diversity and gut microbial diversity in the elderly. Benef Microbes 2022; 13:453-464. [PMID: 36377581 DOI: 10.3920/bm2022.0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Diet is considered as a major driver of gut microbiota composition. However, little is known about the relationship between overall dietary balance and gut microbiota, especially in the elderly. Here, using the Quantitative Index for Dietary Diversity (QUANTIDD), we analysed the relationships between dietary diversity and gut microbiota diversity in 445 Japanese subjects aged 65-90 years. We also examined the effect of age by comparing the young-old group aged 65 to 74 years (<75 years group; n=246) and the old-old group aged 75 years and older (≥75 years group; n=199). QUANTIDD showed significant positive relationships with Pielou's evenness and Shannon indices, two α-diversity indices related to the uniformity of species distribution. This suggests that a more diverse diet is associated with a more uniform abundance of various bacterial groups, rather than a greater variety of gut bacteria. QUANTIDD also showed significant positive associations with the abundance of Anaerostipes, Eubacterium eligens group, and Eubacterium ventriosum group, which produce short-chain fatty acids (SCFAs) and are beneficial to health. Negative association was found with the abundance of Ruminococcus gnavus group, which produces inflammatory polysaccharides. Positive associations between QUANTIDD and α-diversity indices or the abundance of specific bacterial groups were identified among all subjects and in the <75 years group, but not in the ≥75 years group. Our results suggest that dietary diversity contributes to the diversity of the gut microbiota and increases the abundance of SCFAs-producing bacteria, but only up to a certain age. These findings help to understand the complex relationship between diet and gut microbiota, and provide hints for specific dietary interventions to promote beneficial gut microbiota in the elderly.
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Affiliation(s)
- R Amamoto
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K Shimamoto
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - T Suwa
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - S Park
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
| | - H Matsumoto
- Microbiological Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K Shimizu
- Basic Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - M Katto
- Basic Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - H Makino
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - S Matsubara
- Food Research Department, Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Y Aoyagi
- Exercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
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Tagai K, Ikoma Y, Endo H, Debnath OB, Seki C, Matsuoka K, Matsumoto H, Oya M, Hirata K, Shinotoh H, Takahata K, Kurose S, Sano Y, Ono M, Shimada H, Kawamura K, Zhang MR, Takado Y, Higuchi M. An optimized reference tissue method for quantification of tau protein depositions in diverse neurodegenerative disorders by PET with 18F-PM-PBB3 ( 18F-APN-1607). Neuroimage 2022; 264:119763. [PMID: 36427751 DOI: 10.1016/j.neuroimage.2022.119763] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 02/14/2022] [Revised: 10/15/2022] [Accepted: 11/21/2022] [Indexed: 11/26/2022] Open
Abstract
Positron emission tomography (PET) with 18F-PM-PBB3 (18F-APN-1607, 18F-Florzolotau) enables high-contrast detection of tau depositions in various neurodegenerative dementias, including Alzheimer's disease (AD) and frontotemporal lobar degeneration (FTLD). A simplified method for quantifying radioligand binding in target regions is to employ the cerebellum as a reference (CB-ref) on the assumption that the cerebellum has minimal tau pathologies. This procedure is typically valid in AD, while FTLD disorders exemplified by progressive supranuclear palsy (PSP) are characterized by occasional tau accumulations in the cerebellum, hampering the application of CB-ref. The present study aimed to establish an optimal method for defining reference tissues on 18F-PM-PBB3-PET images of AD and non-AD tauopathy brains. We developed a new algorithm to extract reference voxels with a low likelihood of containing tau deposits from gray matter (GM-ref) or white matter (WM-ref) by a bimodal fit to an individual, voxel-wise histogram of the radioligand retentions and applied it to 18F-PM-PBB3-PET data obtained from age-matched 40 healthy controls (HCs) and 23 CE, 40 PSP, and five other tau-positive FTLD patients. PET images acquired at 90-110 min after injection were averaged and co-registered to corresponding magnetic resonance imaging space. Subsequently, we generated standardized uptake value ratio (SUVR) images estimated by CB-ref, GM-ref and WM-ref, respectively, and then compared the diagnostic performances. GM-ref and WM-ref covered a broad area in HCs and were free of voxels located in regions known to bear high tau burdens in AD and PSP patients. However, radioligand retentions in WM-ref exhibited age-related declines. GM-ref was unaffected by aging and provided SUVR images with higher contrast than CB-ref in FTLD patients with suspected and confirmed corticobasal degeneration. The methodology for determining reference tissues as optimized here improves the accuracy of 18F-PM-PBB3-PET measurements of tau burdens in a wide range of neurodegenerative illnesses.
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Affiliation(s)
- Kenji Tagai
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan; Department of Psychiatry, The Jikei University of Medicine, Tokyo 105-8461, Japan.
| | - Yoko Ikoma
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Hironobu Endo
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Oiendrila Bhowmik Debnath
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Chie Seki
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Kiwamu Matsuoka
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Hideki Matsumoto
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Masaki Oya
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Kosei Hirata
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Hitoshi Shinotoh
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Keisuke Takahata
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan; Department of Psychiatry, Keio University School of Medicine, Tokyo 160-0016, Japan
| | - Shin Kurose
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan; Department of Psychiatry, Keio University School of Medicine, Tokyo 160-0016, Japan
| | - Yasunori Sano
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan; Department of Psychiatry, Keio University School of Medicine, Tokyo 160-0016, Japan
| | - Maiko Ono
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Hitoshi Shimada
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan; Department of Functional Neurology & Neurosurgery, Center for Integrated Human Brain Science, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Kazunori Kawamura
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Ming-Rong Zhang
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
| | - Yuhei Takado
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan.
| | - Makoto Higuchi
- Quantum Life and Medical Science Directorate, National Institutes for Quantum Science and Technology, Institute for Quantum Medical Science, Chiba 263-8555, Japan
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11
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Endo H, Tagai K, Ono M, Ikoma Y, Oyama A, Matsuoka K, Kokubo N, Hirata K, Sano Y, Oya M, Matsumoto H, Kurose S, Seki C, Shimizu H, Kakita A, Takahata K, Shinotoh H, Shimada H, Tokuda T, Kawamura K, Zhang M, Oishi K, Mori S, Takado Y, Higuchi M. A Machine Learning-Based Approach to Discrimination of Tauopathies Using [ 18 F]PM-PBB3 PET Images. Mov Disord 2022; 37:2236-2246. [PMID: 36054492 PMCID: PMC9805085 DOI: 10.1002/mds.29173] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/03/2022] [Accepted: 07/10/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND We recently developed a positron emission tomography (PET) probe, [18 F]PM-PBB3, to detect tau lesions in diverse tauopathies, including mixed three-repeat and four-repeat (3R + 4R) tau fibrils in Alzheimer's disease (AD) and 4R tau aggregates in progressive supranuclear palsy (PSP). For wider availability of this technology for clinical settings, bias-free quantitative evaluation of tau images without a priori disease information is needed. OBJECTIVE We aimed to establish tau PET pathology indices to characterize PSP and AD using a machine learning approach and test their validity and tracer capabilities. METHODS Data were obtained from 50 healthy control subjects, 46 patients with PSP Richardson syndrome, and 37 patients on the AD continuum. Tau PET data from 114 regions of interest were subjected to Elastic Net cross-validation linear classification analysis with a one-versus-the-rest multiclass strategy to obtain a linear function that discriminates diseases by maximizing the area under the receiver operating characteristic curve. We defined PSP- and AD-tau scores for each participant as values of the functions optimized for differentiating PSP (4R) and AD (3R + 4R), respectively, from others. RESULTS The discriminatory ability of PSP- and AD-tau scores assessed as the area under the receiver operating characteristic curve was 0.98 and 1.00, respectively. PSP-tau scores correlated with the PSP rating scale in patients with PSP, and AD-tau scores correlated with Mini-Mental State Examination scores in healthy control-AD continuum patients. The globus pallidus and amygdala were highlighted as regions with high weight coefficients for determining PSP- and AD-tau scores, respectively. CONCLUSIONS These findings highlight our technology's unbiased capability to identify topologies of 3R + 4R versus 4R tau deposits. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Hironobu Endo
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Kenji Tagai
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Maiko Ono
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Yoko Ikoma
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Asaka Oyama
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Kiwamu Matsuoka
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Naomi Kokubo
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Kosei Hirata
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Yasunori Sano
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Masaki Oya
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Hideki Matsumoto
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan,Department of Oral and Maxillofacial RadiologyTokyo Dental CollegeTokyoJapan
| | - Shin Kurose
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Chie Seki
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Hiroshi Shimizu
- Department of Pathology, Brain Research InstituteNiigata UniversityNiigataJapan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research InstituteNiigata UniversityNiigataJapan
| | - Keisuke Takahata
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | | | - Hitoshi Shimada
- Department of Functional Neurology & Neurosurgery, Center for Integrated Human Brain Science, Brain Research InstituteNiigata UniversityNiigataJapan
| | - Takahiko Tokuda
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Kazunori Kawamura
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Ming‐Rong Zhang
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Kenichi Oishi
- The Russell H. Morgan Department of Radiology and Radiological ScienceJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Susumu Mori
- The Russell H. Morgan Department of Radiology and Radiological ScienceJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Yuhei Takado
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
| | - Makoto Higuchi
- Institute for Quantum Medical Science, Quantum Life and Medical Science DirectorateNational Institutes for Quantum Science and TechnologyChibaJapan
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12
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Oishi Y, Tsujita H, Arai T, Sakai R, Sato S, Tanaka H, Ogura K, Masaki R, Kondo S, Tsukamoto S, Higuchi S, Sumida A, Matsumoto H, Shinke T. The vascular response to ultrathin biodegradable polymer sirolimus-eluting stent at 2-weeks and 1-year follow up in patients with ST-elevation myocardial infarction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2011] [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
Recent clinical study suggests newer-generation drug-eluting stents (DES) that combine ultrathin strut and nano-coating with biodegradable polymers sirolimus-eluting stent (BP-SES) could improve long-term clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) over current generation DES. However, the details of vascular response in very early and chronic phase have not been systematically addressed.
Objective and method
We exploratory investigate early and chronic vascular response following BP-SES implantation in patients with STEMI to reveal mechanism of the favorable clinical outcomes in recent studies using frequency domain-optical coherence tomography (FD-OCT).
Consecutive twenty-four patients with STEMI who underwent FD-OCT after primary PCI and were eligible for follow-up FD-OCT at 2 weeks and 1 year after implantation were enrolled between June 2018 and August 2020.
OCT was performed immediately after PCI, at 2-weeks (2W) and 1-year (1Y) after the primary PCI. Struts were recorded as uncovered if any part was visibly exposed in the lumen or covered if a layer of tissue covered all reflecting surfaces. Struts of stents that are smaller than 3.0mm of diameter with more than 80μm between the center reflection and the adjacent vessel surface were recorded as malapposed. The reduction of atherothrombotic protrusion burden within the stent was also assessed.
Results
Twenty-four patients (age 64.9±11.4 years, male 83.3%) were enrolled.
The percentage of uncovered struts significantly decreased from post-PCI to 2W follow-up and from 2W follow-up to 1Y follow-up (62±20% post-PCI versus 27±11% at 2W follow up, p<0.0001 and 2W follow-up versus 3.3±3.3% at 1Y follow up, p<0.0001). Malapposed struts also decreased from post-PCI to 2W follow-up (4.1±3.6% post-PCI versus 1.5±2.2% at 2W follow-up, p<0.0001), but no significant difference was shown between 2W follow-up and 1Y follow-up (2W follow-up versus 1.0±2.3 at 1Y follow up, p=0.12). The average protrusion area of athero-thrombotic burden decreased (0.57±0.32 at post-PCI versus 0.42±0.22 mm2 at 2W follow up, p<0.0001) and its volume showed similar tendency (16.6±10.7 at post-PCI versus 12.9±8.23 mm3 at 2W follow up, p=0.0011). Thrombus was shown in all patients at post-PCI, but two patients (8.0%) showed it at 1Y follow-up.
Conclusion(s)
This study elucidated very early and chronic vascular responses following ultrathin strut BP-SES implantation in STEMI patients by FD-OCT. It showed resolution of athero-thrombotic materials in very early phase and favorable progression of strut coverage in very early and chronic phase.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Oishi
- Showa University Hospital , Tokyo , Japan
| | - H Tsujita
- Showa University Hospital , Tokyo , Japan
| | - T Arai
- Showa University Hospital , Tokyo , Japan
| | - R Sakai
- Showa University Hospital , Tokyo , Japan
| | - S Sato
- Showa University Hospital , Tokyo , Japan
| | - H Tanaka
- Showa University Hospital , Tokyo , Japan
| | - K Ogura
- Showa University Hospital , Tokyo , Japan
| | - R Masaki
- Showa University Hospital , Tokyo , Japan
| | - S Kondo
- Showa University Hospital , Tokyo , Japan
| | | | - S Higuchi
- Showa University Hospital , Tokyo , Japan
| | - A Sumida
- Showa University Hospital , Tokyo , Japan
| | | | - T Shinke
- Showa University Hospital , Tokyo , Japan
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13
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Matsumoto H, Kida H, Nakanishi R, Miyoshi M. Usefulness of the synthesized 18-lead ECG in identify the origin of premature ventricular contractions. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.449] [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
There are have been reports on the 12-lead ECG waveforms used to identify ventricular premature contractions (VPCs), but there are not enough algorithms. On the other hand, the synthesized 18-lead ECG adds the right-side chest leads (V3R, V4R, and V5R) and back leads (V7, V8, and V9) to the 12-lead ECG.
Purpose
This aim of this study was to evaluate whether the waveforms of the 18-lead ECG are useful in predicting the origin of VPCs.
Methods
We studied 86 consecutive patients (age :61.8±16.0 years, male: 54.5%) enrolled from multicenter who underwent radiofrequency catheter ablation for VPCs. We retrospectively investigated the association between origin of the VPCs and characteristics of the synthetic 18-leads ECG.
Results
The 18-lead ECG showed a specific pattern for the VPC originating near the His-bundle. In 17 cases, the QRS morphology in V5R exhibited a QS pattern, and 13 of 17 cases had VPCs originating near the His-bundle. In the other 69 cases, V5R did not exhibit a QS pattern. ROC curve analysis showed that the QS pattern in V5R predicted VPC originating near the His-bundle with high accuracy: sensitivity 100.0%, specificity 94.5%, and AUC 0.98. Furthermore, the positive predictive value was 76.5% and negative predictive value 100.0%.
Conclusion
The QS pattern shown in V5R of the 18-lead ECG was a useful parameter for identifying VPCs originating near the His-bundle, which might be a good reference indicator during radiofrequency catheter ablation for VPCs.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- H Matsumoto
- Japan Community Healthcare Organization Osaka Hospital, Department of Clinical Engineering , Osaka , Japan
| | - H Kida
- Osaka General Medical Center, Department of Clinical Engineer , Osaka , Japan
| | - R Nakanishi
- Nara Prefectural Seiwa Medical Center, Department of Clinical Engineer , Nara , Japan
| | - M Miyoshi
- Japan Community Healthcare Organization Osaka Hospital, Department of Cardiology , Osaka , Japan
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14
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Sato Y, Fujiwara S, Hata A, Kida Y, Masuda T, Amimoto H, Matsumoto H, Miyoshi K, Otsuka K, Tomii K. 1545P A multicenter prospective observational study of pre-existing autoantibodies in patients with small cell lung cancer treated with ICI. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1639] [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: 11/01/2022] Open
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15
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Sato Y, Sumikawa H, Shibaki R, Morimoto T, Sakata Y, Oya Y, Tamiya M, Suzuki H, Matsumoto H, Kijima T, Hashimoto K, Kobe H, Hino A, Inaba M, Tsukita Y, Ikeda H, Arai D, Maruyama H, Sakata S, Fujimoto D. 1103P Drug-related pneumonitis induced by osimertinib as first-line treatment for EGFR-positive non-small cell lung cancer: A real-world setting. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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16
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Tochibora S, Hori T, Mori M, Matsumoto H, Otsuka H, Sasai H, Ito Y, Kasahara Y, Kawamoto N, Ohnishi H. Immediate postnatal central hypothyroidism caused by maternal Graves' disease: Importance of early screening. Clin Case Rep 2022; 10:e6061. [PMID: 35846938 PMCID: PMC9280755 DOI: 10.1002/ccr3.6061] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/22/2022] [Accepted: 07/02/2022] [Indexed: 11/08/2022] Open
Abstract
This report illustrates a case of central hypothyroidism in a newborn immediately after birth caused by maternal Graves' disease. Infants from mothers with Graves' disease require careful examination without waiting for neonatal screening results, even though the mother's thyroid function is normal at birth or the newborn does not have goiter.
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Affiliation(s)
- Saho Tochibora
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
| | - Tomohiro Hori
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
- Clinical Genetics Center Gifu University Hospital Gifu Japan
| | - Mai Mori
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
| | - Hideki Matsumoto
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
| | - Hiroki Otsuka
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
- Clinical Genetics Center Gifu University Hospital Gifu Japan
| | - Hideo Sasai
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
- Clinical Genetics Center Gifu University Hospital Gifu Japan
| | - Yuko Ito
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
| | - Yukiko Kasahara
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
- Department of Pediatrics Matsunami General Hospital Gifu Japan
| | - Norio Kawamoto
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine Gifu University Gifu Japan
- Division of Neonatal Intensive Care Unit Gifu University Hospital Gifu Japan
- Clinical Genetics Center Gifu University Hospital Gifu Japan
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17
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Matsumoto H, Sasai H, Kawamoto N, Katsuyama M, Minamiyama M, Kuru S, Fukao T, Ohnishi H. Founder genetic variants of ABCC4 and ABCC11 in the Japanese population are not associated with the development of subacute myelo-optico-neuropathy (SMON). Mol Genet Genomic Med 2021; 10:e1845. [PMID: 34951141 PMCID: PMC8801137 DOI: 10.1002/mgg3.1845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 11/06/2021] [Accepted: 11/18/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Subacute myelo-optico-neuropathy (SMON) is a severe neurological disorder associated with clioquinol administration, which frequently occurred in Japan during the 1950s and 1960s. The unique genetic background of the Japanese population is considered to be strongly involved in the development of this neurological disease. Recently, genetic variants of ABCC4 (OMIM: 605250) and ABCC11 (OMIM: 607040), which are particularly common in the Japanese population, were suggested as possible genetic susceptibility factors for the development of SMON. METHODS We analyzed 125 Japanese SMON patients who provided consent for this study. Patient DNA was collected from peripheral blood, and genetic analysis was performed for ABCC4 rs3765534 (c.2268G>A, p.Glu857Lys) and ABCC11 rs17822931 (c.538G>A, p.Gly180Arg) polymorphisms using the Sanger sequencing method and/or TaqMan PCR method. The frequency distribution of each polymorphism was compared with that in healthy Japanese people recorded in two genomic databases (Human Genomic Variation Database and Integrative Japanese Genome Variation Database), and each genotype was compared with the clinical features of patients. RESULTS The frequencies of ABCC4 rs3765334 and ABCC11 rs17822931 polymorphisms in SMON patients and healthy Japanese people were not significantly different in the multifaceted analysis. CONCLUSION We conclude that the ABCC4 rs3765334 and ABCC11 rs17822931 polymorphisms are not associated with the development of SMON.
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Affiliation(s)
- Hideki Matsumoto
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Hideo Sasai
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu University, Gifu, Japan.,Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
| | - Norio Kawamoto
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Masato Katsuyama
- Radioisotope Center, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Makoto Minamiyama
- Department of Neurology, National Hospital Organization Suzuka National Hospital, Mie, Japan
| | - Satoshi Kuru
- Department of Neurology, National Hospital Organization Suzuka National Hospital, Mie, Japan
| | - Toshiyuki Fukao
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu University, Gifu, Japan.,Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu University, Gifu, Japan.,Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
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18
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Lin A, Manral N, McElhinney P, Killekar A, Matsumoto H, Cadet S, Achenbach S, Nicholls SJ, Wong DT, Berman D, Dweck M, Newby DE, Williams MC, Slomka PJ, Dey D. Deep learning-based plaque quantification from coronary computed tomography angiography: external validation and comparison with intravascular ultrasound. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0161] [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
Atherosclerotic plaque quantification from coronary computed tomography angiography (CTA) enables accurate assessment of coronary artery disease burden, progression, and prognosis. However, quantitative plaque analysis is time-consuming and requires high expertise. We sought to develop and externally validate an artificial intelligence (AI)-based deep learning (DL) approach for CTA-derived measures of plaque volume and stenosis severity. We compared the performance of DL to expert readers and the gold standard of intravascular ultrasound (IVUS).
Methods
This was a multicenter study of patients undergoing coronary CTA at 11 sites, with software-based quantitative plaque measurements performed at a per-lesion level by expert readers. AI-based plaque analysis was performed by a DL novel convolutional neural network which automatically segmented the coronary artery wall, lumen, and plaque for the computation of plaque volume and stenosis severity. Using expert measurements as ground truth, the DL algorithm was trained on 887 patients (4,686 lesions). Thereafter, the algorithm was applied to an independent test set of 221 patients (1,234 lesions), which included an external validation cohort of 171 patients from the SCOT-HEART (Scottish Computed Tomography of the Heart) trial as well as 50 patients who underwent IVUS within one month of CTA. We report the performance of AI-based plaque analysis in the independent test set.
Results
Within the external validation cohort, there was excellent agreement between DL and expert reader measurements of total plaque volume (intraclass correlation coefficient [ICC] 0.876), noncalcified plaque volume (ICC 0.869), and percent diameter stenosis (ICC 0.850; all p<0.001). When compared with IVUS, there was excellent agreement for DL total plaque volume (ICC 0.945), total plaque burden (ICC 0.853), minimal luminal area (ICC 0.864), and percent area stenosis (ICC 0.805; all p<0.001); with strong correlation between DL and IVUS for total plaque volume (r=0.915; p<0.001; Figure). The average DL plaque analysis time was 20 seconds per patient, compared with 25–30 minutes taken by experts.
Conclusions
AI-based plaque quantification from coronary CTA using an externally validated DL approach enables rapid measurements of plaque volume and stenosis severity in close agreement with expert readers and IVUS.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Heart, Lung, and Blood Institute, United States
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Affiliation(s)
- A Lin
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - N Manral
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - P McElhinney
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - A Killekar
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - H Matsumoto
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - S Cadet
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - S Achenbach
- Friedrich Alexander University, Erlangen, Germany
| | | | - D T Wong
- Monash Heart, Melbourne, Australia
| | - D Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - M Dweck
- University of Edinburgh, Edinburgh, United Kingdom
| | - D E Newby
- University of Edinburgh, Edinburgh, United Kingdom
| | - M C Williams
- University of Edinburgh, Edinburgh, United Kingdom
| | - P J Slomka
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D Dey
- Cedars-Sinai Medical Center, Los Angeles, United States of America
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19
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Matsumoto H, Kawashima N, Yamamoto T, Nakama M, Otsuka H, Ago Y, Sasai H, Kubota K, Ozeki M, Kawamoto N, Esaka Y, Ohnishi H. In vitro functional analysis of four variants of human asparagine synthetase. J Inherit Metab Dis 2021; 44:1226-1234. [PMID: 34080208 DOI: 10.1002/jimd.12408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/07/2021] [Accepted: 06/01/2021] [Indexed: 01/21/2023]
Abstract
The loss-of-function variants of the human asparagine synthetase (ASNS) gene cause asparagine synthetase deficiency (ASNSD). Diagnosis of ASNSD requires genetic tests because a specific biochemical diagnostic for ASNSD is not available. There are a few reports describing the functional evaluation of ASNS variants. Therefore, in vitro methods are needed to evaluate the detected variants in patients. In this report, five types of human ASNS proteins (wild-type and our reported four variants: p.Leu145Ser, p.Leu247Trp, p.Val489Asp, and p.Trp541Cysfs*5) were expressed in silkworm using a baculoviral expression system. An enzymatic activity assay of ASNS was performed, and the concentration of asparagine by ninhydrin and High Performance Liquid Chromatography methods using the purified recombinant proteins was measured. We established ASNS deficient HEK293 cells using the CRISPR/Cas9 method and evaluated the growth of cells without asparagine after transduction of ASNS variants with a lentiviral expression system. The four ASNS variants displayed significantly low enzymatic activity. The ASNS deficient HEK293 cells transduced with wild-type ASNS grew without asparagine, whereas cells transduced with the variants did not grow or showed significantly slower growth than cells transduced with wild-type ASNS. Herein, we established a method for evaluating the enzymatic activity of the recombinant human ASNS variants. The results of the cell-based assay corroborated the results of the enzymatic activity. These methods should enable the evaluation of the pathogenicity of ASNS variants.
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Affiliation(s)
- Hideki Matsumoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Nana Kawashima
- Laboratory of Pharmaceutical Analytical Chemistry, Gifu Pharmaceutical University, Gifu, Japan
| | - Takahiro Yamamoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
- Educational Support Center for Pediatric Home-Based Medical Care, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Mina Nakama
- Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
| | - Hiroki Otsuka
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
- Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
| | - Yasuhiko Ago
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Hideo Sasai
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
- Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
| | - Kazuo Kubota
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
- Educational Support Center for Pediatric Home-Based Medical Care, Graduate School of Medicine, Gifu University, Gifu, Japan
- Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
| | - Michio Ozeki
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Norio Kawamoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Yukihiro Esaka
- Laboratory of Pharmaceutical Analytical Chemistry, Gifu Pharmaceutical University, Gifu, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
- Educational Support Center for Pediatric Home-Based Medical Care, Graduate School of Medicine, Gifu University, Gifu, Japan
- Clinical Genetics Center, Gifu University Hospital, Gifu, Japan
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20
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Shono H, Tsutsumi R, Beppu K, Matsushima R, Watanabe S, Fujimoto C, Kanamura R, Ohnishi H, Kondo E, Azuma T, Sato G, Kawai M, Matsumoto H, Kitamura Y, Sakaue H, Takeda N. Dietary Supplementation with Monosodium Glutamate Suppresses Chemotherapy-Induced Downregulation of the T1R3 Taste Receptor Subunit in Head and Neck Cancer Patients. Nutrients 2021; 13:2921. [PMID: 34578798 PMCID: PMC8469378 DOI: 10.3390/nu13092921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/04/2021] [Accepted: 08/17/2021] [Indexed: 01/17/2023] Open
Abstract
(Background) We investigated the effect of dietary supplementation with monosodium glutamate (MSG) on chemotherapy-induced downregulation of the T1R3 taste receptor subunit expression in the tongue of patients with advanced head and neck cancer. (Methods) Patients undergoing two rounds of chemoradiotherapy were randomly allocated to a control or intervention group (dietary supplementation with MSG at 2.7 g/day during the second round of chemotherapy). The relative expression of T1R3, a subunit of both umami and sweet taste receptors, in the tongue was assessed by quantitative polymerase chain reaction analysis. Dysgeusia was assessed with a visual analog scale and daily energy intake was evaluated. (Results) T1R3 expression levels in the tongue, taste sensitivity, and daily energy intake were significantly reduced after the first round of chemotherapy compared with before treatment. Furthermore, these parameters significantly decreased after the second round of chemotherapy, but the extent of decrease was significantly attenuated in the MSG group compared with the control group. (Conclusions) MSG supplementation suppresses chemotherapy-induced dysgeusia, possibly due to the inhibition of the T1R3-containing taste receptor downregulation in the tongue, thereby increasing energy intake in patients with advanced head and neck cancer.
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Affiliation(s)
- Hitoshi Shono
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Rie Tsutsumi
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (K.B.); (R.M.); (S.W.); (H.S.)
| | - Kana Beppu
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (K.B.); (R.M.); (S.W.); (H.S.)
| | - Rina Matsushima
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (K.B.); (R.M.); (S.W.); (H.S.)
| | - Suzuno Watanabe
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (K.B.); (R.M.); (S.W.); (H.S.)
| | - Chisa Fujimoto
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Ryo Kanamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Hiroki Ohnishi
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Eiji Kondo
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Takahiro Azuma
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Go Sato
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Misako Kawai
- Frontier Research Laboratories, Institute for Innovation, Ajinomoto Co. Inc., Kawasaki 210-8681, Japan; (M.K.); (H.M.)
| | - Hideki Matsumoto
- Frontier Research Laboratories, Institute for Innovation, Ajinomoto Co. Inc., Kawasaki 210-8681, Japan; (M.K.); (H.M.)
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (K.B.); (R.M.); (S.W.); (H.S.)
| | - Noriaki Takeda
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University, Tokushima 770-8503, Japan; (H.S.); (C.F.); (R.K.); (H.O.); (E.K.); (T.A.); (G.S.); (Y.K.); (N.T.)
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21
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Matsumoto H, Shimada Y, Nakamura AJ, Usami N, Ojima M, Kakinuma S, Shimada M, Sunaoshi M, Hirayama R, Tauchi H. Health effects triggered by tritium: how do we get public understanding based on scientifically supported evidence? J Radiat Res 2021; 62:557-563. [PMID: 33912931 PMCID: PMC8273802 DOI: 10.1093/jrr/rrab029] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/23/2021] [Indexed: 06/12/2023]
Abstract
The Commission for 'Corresponding to Radiation Disaster of the Japanese Radiation Research Society' formulated a description of potential health effects triggered by tritium. This was in response to the issue of discharging water containing tritium filtered by the Advanced Liquid Processing System (ALPS), generated and stored in Fukushima Daiichi Nuclear Power Station after the accident. In this review article, the contents of the description, originally provided in Japanese, which gives clear and detailed explanation about potential health effects triggered by tritium based on reliable scientific evidence in an understandable way for the public, were summarized. Then, additional information about biochemical or environmental behavior of organically bound tritium (OBT) were summarized in order to help scientists who communicate with general public.
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Affiliation(s)
- Hideki Matsumoto
- Department of Experimental Radiology and Health Physics, University of Fukui School of Medical Sciences, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - Yoshiya Shimada
- Institute for Environmental Sciences, Rokkasho-mura, Kamikita-gun, Aomori 039-3212, Japan
| | - Asako J Nakamura
- Department of Biological Sciences, Faculty of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Noriko Usami
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Mitsuaki Ojima
- Department of Environmental Health Sciences, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan
| | - Shizuko Kakinuma
- Department of Radiation Effects Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Chiba 263-8555, Japan
| | - Mikio Shimada
- Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1, Oookayaka, Meguro-ku, Tokyo 152-8550, Japan
| | - Masaaki Sunaoshi
- Department of Radiation Effects Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Chiba 263-8555, Japan
| | - Ryoichi Hirayama
- Department of Charged Particle Therapy Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Chiba 263-8555, Japan
| | - Hiroshi Tauchi
- Corresponding author. Hiroshi Tauchi, Ph.D., Department of Biological Sciences, Faculty of Science, Ibaraki University, Bunkyo 2-1-1, Mito, Ibaraki 310-8512 Japan. Phone +81-29-228-8383 / Fax +81-29-228-8403;
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22
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Maeda M, Tomita M, Maeda M, Matsumoto H, Usami N, Kume K, Kobayashi K. Exposure of the cytoplasm to low-dose X-rays modifies ataxia telangiectasia mutated-mediated DNA damage responses. Sci Rep 2021; 11:13113. [PMID: 34219128 PMCID: PMC8255317 DOI: 10.1038/s41598-021-92213-z] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/04/2021] [Indexed: 11/29/2022] Open
Abstract
We recently showed that when a low X-ray dose is used, cell death is enhanced in nucleus-irradiated compared with whole-cell-irradiated cells; however, the role of the cytoplasm remains unclear. Here, we show changes in the DNA damage responses with or without X-ray microbeam irradiation of the cytoplasm. Phosphorylated histone H2AX foci, a surrogate marker for DNA double-strand breaks, in V79 and WI-38 cells are not observed in nucleus irradiations at ≤ 2 Gy, whereas they are observed in whole-cell irradiations. Addition of an ataxia telangiectasia mutated (ATM) kinase inhibitor to whole-cell irradiations suppresses foci formation at ≤ 2 Gy. ABL1 and p73 expression is upregulated following nucleus irradiation, suggesting the induction of p73-dependent cell death. Furthermore, CDKN1A (p21) is upregulated following whole-cell irradiation, indicating the induction of cell cycle arrest. These data reveal that cytoplasmic radioresponses modify ATM-mediated DNA damage responses and determine the fate of cells irradiated at low doses.
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Affiliation(s)
- Munetoshi Maeda
- Proton Medical Research Division, Research and Development Department, The Wakasa Wan Energy Research Center, WERC, 64-52-1 Nagatani, Tsuruga, Fukui, 914-0192, Japan.
| | - Masanori Tomita
- Radiation Safety Research Center, Nuclear Technology Research Laboratory, Central Research Institute of Electric Power Industry, CRIEPI, 2-11-1 Iwado Kita, Komae, Tokyo, 201-8511, Japan
| | - Mika Maeda
- Proton Medical Research Division, Research and Development Department, The Wakasa Wan Energy Research Center, WERC, 64-52-1 Nagatani, Tsuruga, Fukui, 914-0192, Japan
| | - Hideki Matsumoto
- Department of Experimental Radiology and Health Physics, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaitsuki, Eiheiji-cho, Fukui, 910-1193, Japan
| | - Noriko Usami
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
| | - Kyo Kume
- Proton Medical Research Division, Research and Development Department, The Wakasa Wan Energy Research Center, WERC, 64-52-1 Nagatani, Tsuruga, Fukui, 914-0192, Japan
| | - Katsumi Kobayashi
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
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23
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Kaiho T, Suzuki H, Matsumoto H, Toyoda T, Inage T, Tanaka K, Sakairi Y, Nakajima T, Kiuchi M, Motohashi S, Nakayama T, Yoshino I. The Role of Immune Checkpoint Molecules in Lung Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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24
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Ishiwata S, Matsue Y, Kasai T, Yatsu S, Matsumoto H, Shitara J, Shimizu M, Kurita A, Kato T, Suda S, Hiki M, Takagi A, Daida H. Validation and comparison of BIOSTAT risk score and AHEAD score for patients with acute heart failure. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1196] [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/Introduction
Acute heart failure (AHF) is one of the major causes of mortality, and identifying the patients at high risk of mortality at the time of admission is crucial to improve clinical outcomes. Although some risk prediction models for patients with AHF have been proposed mainly from randomized clinical trials, the patients in such studies tend not to be similar to those in the real world. Recently, BIOSTAT risk score and AHEAD score derived from two large-scale registry dataset are proposed as useful risk stratification tools for patients with AHF. However, these scores have not been well externally validated and their prognostic prediction performance has not been directly compared.
Purpose
To validate and compare prognostication of BIOSTAT risk score and AHEAD score in AHF patients.
Methods
Patients who consecutively admitted to the cardiac intensive-care unit in our institution with a diagnosis of AHF from 2007 to 2011 were analyzed. Among them, patients with acute coronary syndrome, dialysis, malignancy were excluded. BIOSTAT risk score was calculated using 5 factors (age, blood urea nitrogen, BNP, hemoglobin, prescription of beta blockers), and AHEAD score was also calculated with 5 factors (atrial fibrillation, hemoglobin, age, creatinine, and diabetes mellitus). We also developed AHEAD + BNP model incorporating BNP into AHEAD score. Endpoint was 1-year all-cause death.
Results
Overall, 591 eligible patients were enrolled (mean age was 70±14 years old, 64.8% were male) and 96 patients (16.2%) died during the follow-up of 1-year. The median [interquartile range] of AHEAD score and BIOSTAT risk score were 2 [1–3] and 3 [2–4], respectively. The areas under the curves of receiver operating characteristic curve (AUC) were 0.66 for AHEAD, 0.68 for AHEAD + BNP, and 0.72 for BIOSTAT, respectively. The calibration plots for AHEAD, AHEAD + BNP, and BIOSTAT models showed good calibration (Hosmer-Lemeshow test: p=0.89, 0.74, and 0.74, respectively). The BIOSTAT model's AUC was significantly higher compared to AHEAD (p=0.018) and marginally statistically higher compared to AHEAD + BNP (p=0.054). However, BIOSTAT model showed statistically significant net reclassification improvement compared to both AHEAD (NRI: 0.43, p<0.001) and AHEAD + BNP (NRI: 0.43, p<0.001).
Conclusion
The BIOSTAT score comprised of five readily available clinical variables predict 1-year mortality of patients with AHF with good discrimination and calibration.
ROC curves
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Ishiwata
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Cardiovascular Respiratory Sleep Medicine, Tokyo, Japan
| | - Y Matsue
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Cardiovascular Respiratory Sleep Medicine, Tokyo, Japan
| | - T Kasai
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Cardiovascular Respiratory Sleep Medicine, Tokyo, Japan
| | - S Yatsu
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Matsumoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - J Shitara
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Shimizu
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - A Kurita
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Kato
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Suda
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - A Takagi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Daida
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
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Ogura K, Tsujita H, Arai T, Sakai R, Tanaka H, Masaki R, Oishi Y, Nomura K, Arai K, Sekimoto T, Kondo S, Tsukamoto S, Mori H, Matsumoto H, Shinke T. Early vascular healing following bioresorbable-polymer sirolimus-eluting stent implantation in comparison with durable-polymer everolimus-eluting stent: sequential optical coherence tomography study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1391] [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
Orsiro ultrathin-strut bioresorbable-polymer sirolimus-eluting stent (BP-SES) might facilitate early vascular healing responses that seems to be associated with improved long-term clinical outcomes. We compared the early vascular healing responses to BP-SES and Xience durable-polymer everolimus-eluting stent (DP-EES) in patients with chronic coronary syndrome (CCS) using optical coherence tomography (OCT).
Methods
A total of 40 patients with CCS receiving OCT-guided PCI were included. 20 patients were assigned to BP-SES, and 20 to DP-EES. OCT was performed immediately after stent placement (post-procedure) and at 1 month follow-up. Struts were recorded as uncovered if any part was visibly exposed in the lumen or covered if a layer of tissue covered all reflecting surfaces. The incidence of intrastent thrombus (IS-Th) and irregular protrusion (IRP) were also assessed.
Results
At 1 month, the percentage of uncovered struts was significantly lower in the BP-SES compared with the DP-EES (2.8±1.6% vs. 5.8±1.8%, respectively; p<0.001), and that of malapposed struts was similar between both groups (2.5±3.1% vs. 2.4±2.2%; p=0.76). There were no differences in the incidence of IS-Th (65.0% vs. 55.0% at post-procedure; p=0.54, 30.0% vs. 35.0% at 1 month; p=0.75) and IRP (30.0% vs. 25.0% at post-procedure; p=0.74). IRP had completely resolved at 1 month in both groups.
Conclusion
Early vascular healing response to Orsiro BP-SES implantation was revealed in CCS patients at 1 month compared with Xience DP-EES. Orsiro BP-SES may have a potential to shorten the dual antiplatelet therapy duration.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Ogura
- Showa University Hospital, Tokyo, Japan
| | - H Tsujita
- Showa University Hospital, Tokyo, Japan
| | - T Arai
- Showa University Hospital, Tokyo, Japan
| | - R Sakai
- Showa University Hospital, Tokyo, Japan
| | - H Tanaka
- Showa University Hospital, Tokyo, Japan
| | - R Masaki
- Showa University Hospital, Tokyo, Japan
| | - Y Oishi
- Showa University Hospital, Tokyo, Japan
| | - K Nomura
- Showa University Hospital, Tokyo, Japan
| | - K Arai
- Showa University Hospital, Tokyo, Japan
| | | | - S Kondo
- Showa University Hospital, Tokyo, Japan
| | | | - H Mori
- Showa University Hospital, Tokyo, Japan
| | | | - T Shinke
- Showa University Hospital, Tokyo, Japan
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Yorozu A, Sutani S, Soyano T, Matsumoto H, Toya K, Shiraishi Y, Saito S. Long-term Outcomes of Very-high-risk versus High-risk Prostate Cancer Patients Treated with Brachytherapy-based Treatment. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Oishi Y, Shinke T, Tanaka H, Ogura K, Arai K, Masaki R, Nomura K, Kosaki R, Sakai K, Sekimoto T, Tsujita H, Kondo S, Tsukamoto S, Mori H, Matsumoto H. Early vascular responses to ultrathin biodegradable polymer sirolimus-eluting stent for the treatment of st-elevation myocardial infarction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Recent clinical study suggests newer-generation drug-eluting stents (DES) that combine ultrathin strut and nano-coating with biodegradable polymers sirolimus-eluting stent (BP-SES) could improve long-term clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) over current generation DES. However, safety profiles in very early phase have not been systematically addressed.
Objective and method
We exploratory investigate early vascular response following BP-SES implantation in patients with STEMI to reveal mechanism of the favorable clinical outcomes in recent studies using frequency domain-optical coherence tomography (FD-OCT).
Consecutive twenty patients with STEMI who underwent FD-OCT immediately after primary PCI and were eligible for follow-up FD-OCT at 2 weeks after implantation were enrolled between June 2018 and November 2019.
Results
Twenty patients (age 62.7±11.3 years, male 85.0%) were enrolled with frequencies of hypertension (45.0%), diabetes mellitus (35.0%), dyslipidemia (55.0%) and smoking (80.0%). Aspiration catheter were used in all patients, and 1.13±0.34 stents were used. Only one patient (5.0%) received chronic antiplatelet therapy with aspirin prior to the onset of STEMI. All patients started to receive prasugrel as thienopyridine from this event and continued dual antiplatelet therapy for 2 weeks.
The percentage of uncovered struts significantly decreased from post-procedure to 2W follow-up (69±18% post-procedure versus 30±11% at 2W follow up, p<0.0001). Malapposed struts also decreased (5.6±5.7% post-procedure versus0.9±1.2% at 2W follow up, p<0.0001).The average protrusion area of athero-thrombotic burden numerically decreased (0.37±0.19 at post-procedure versus 0.34±0.14 mm2 at 2W follow up, p=0.19) and its volume showed similar tendency (10.60±6.40 at post-procedure versus 9.36±5.14 mm3 at 2W follow up, p=0.19).
Conclusion(s)
This study firstly elucidated very early vascular responses following ultrathin strut BP-SES implantation in STEMI patients, showing early progression of strut coverage and resolution of athero-thrombotic materials. This technology may have a potential to overcome the current generation DESs in this clinical setting.
Thrombus, uncovered and malapposed struts
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Oishi
- Showa University Hospital, Tokyo, Japan
| | - T Shinke
- Showa University Hospital, Tokyo, Japan
| | - H Tanaka
- Showa University Hospital, Tokyo, Japan
| | - K Ogura
- Showa University Hospital, Tokyo, Japan
| | - K Arai
- Showa University Hospital, Tokyo, Japan
| | - R Masaki
- Showa University Hospital, Tokyo, Japan
| | - K Nomura
- Showa University Hospital, Tokyo, Japan
| | - R Kosaki
- Showa University Hospital, Tokyo, Japan
| | - K Sakai
- Showa University Hospital, Tokyo, Japan
| | | | - H Tsujita
- Showa University Hospital, Tokyo, Japan
| | - S Kondo
- Showa University Hospital, Tokyo, Japan
| | | | - H Mori
- Showa University Hospital, Tokyo, Japan
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Matsumoto H, Tanimura C, Kushida D, Osaka H, Kawabata Y, Hagino H. FRAX score and recent fall history predict the incidence for sarcopenia in community-dwelling older adults: a prospective cohort study. Osteoporos Int 2020; 31:1985-1994. [PMID: 32448948 DOI: 10.1007/s00198-020-05447-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 12/27/2019] [Accepted: 05/04/2020] [Indexed: 12/21/2022]
Abstract
UNLABELLED We hypothesized that the baseline FRAX score and previous falls would predict the incidence of sarcopenia in community-dwelling older adults who received medical check-ups. The FRAX score (hazard ratio [HR] = 1.087, 95% CI 1.014-1.167) and previous falls (HR = 5.181, 95% CI 1.002-26.777) were determined to be independent risk factors for the incidence of sarcopenia. PURPOSE This prospective study was performed to elucidate the prevalence and incidence of sarcopenia in community-dwelling older adults who received medical check-ups, and to determine whether FRAX score and fall history predict the incidence of sarcopenia. METHODS Participants were recruited from a group of individuals who had registered for an annual town-sponsored medical check-up. Study inclusion criteria were aged older than 60 years, living independently, and ability to walk without assistance. Individuals who received nursing care were excluded from the study. A total of 426 residential participants were analyzed. Demographic information, fall history of the previous year, and FRAX score without bone mineral density were assessed. The assessment for sarcopenia was based on the recommendations of the Asian Working Group for Sarcopenia. RESULTS The final sample for the assessment of sarcopenia incidence comprised 258 participants. The mean follow-up time was 2.92 years. The rate of sarcopenia was 1.06 cases per 100 person-years at risk. The Cox multivariate logistic regression model in our analysis was adjusted for age, gender, muscle mass, and covariates and showed that the FRAX score (HR = 1.087, 95% CI 1.014-1.167) and recent history of falls (HR = 5.181, 95% CI 1.002-26.777) were independent risk factors for the incidence of sarcopenia. CONCLUSION FRAX and history of falling can be a simple screening tool to raise awareness of the prevention of osteoporosis and sarcopenia in clinical settings.
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Affiliation(s)
- H Matsumoto
- Department of Physical Therapist, Faculty of Rehabilitation, Kawasaki University of Medical Welfare, Matsushima 288, Kurashiki, Okayama, 701-0193, Japan.
| | - C Tanimura
- School of Health Science, Faculty of Medicine, Tottori University, Nishicho 86, Yonago, Tottori, 683-8503, Japan
| | - D Kushida
- Department of Electrical Engineering & Computer Science, Faculty of Engineering, (Cross-Informatics Research Center), Tottori University, Koyama-cho Minami 4-101, Tottori, 680-8552, Japan
| | - H Osaka
- Department of Physical Therapist, Faculty of Rehabilitation, Kawasaki University of Medical Welfare, Matsushima 288, Kurashiki, Okayama, 701-0193, Japan
| | - Y Kawabata
- Department of Rehabilitation Medicine, Shuto General Hospital, JA Yamaguchi Prefectural Welfare Federation of Agricultural Cooperative, Kogaisaku 1000-1, Yanai, Yamaguchi, 742-0032, Japan
| | - H Hagino
- School of Health Science, Faculty of Medicine, Tottori University, Nishicho 86, Yonago, Tottori, 683-8503, Japan
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29
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Otsuka H, Kimura T, Ago Y, Nakama M, Aoyama Y, Abdelkreem E, Matsumoto H, Ohnishi H, Sasai H, Osawa M, Yamaguchi S, Mitchell GA, Fukao T. Deficiency of 3-hydroxybutyrate dehydrogenase (BDH1) in mice causes low ketone body levels and fatty liver during fasting. J Inherit Metab Dis 2020; 43:960-968. [PMID: 32279332 DOI: 10.1002/jimd.12243] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 12/03/2019] [Revised: 04/05/2020] [Accepted: 04/08/2020] [Indexed: 02/05/2023]
Abstract
d-3-Hydroxy-n-butyrate dehydrogenase (BDH1; EC 1.1.1.30), encoded by BDH1, catalyzes the reversible reduction of acetoacetate (AcAc) to 3-hydroxybutyrate (3HB). BDH1 is the last enzyme of hepatic ketogenesis and the first enzyme of ketolysis. The hereditary deficiency of BDH1 has not yet been described in humans. To define the features of BDH1 deficiency in a mammalian model, we generated Bdh1-deficient mice (Bdh1 KO mice). Under normal housing conditions, with unrestricted access to food, Bdh1 KO mice showed normal growth, appearance, behavior, and fertility. In contrast, fasting produced marked differences from controls. Although Bdh1 KO mice survive fasting for at least 48 hours, blood 3HB levels remained very low in Bdh1 KO mice, and despite AcAc levels moderately higher than in controls, total ketone body levels in Bdh1 KO mice were significantly lower than in wild-type (WT) mice after 16, 24, and 48 hours fasting. Hepatic fat content at 24 hours of fasting was greater in Bdh1 KO than in WT mice. Systemic BDH1 deficiency was well tolerated under normal fed conditions but manifested during fasting with a marked increase in AcAc/3HB ratio and hepatic steatosis, indicating the importance of ketogenesis for lipid energy balance in the liver.
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Affiliation(s)
- Hiroki Otsuka
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
- Department of Neonatology, Gifu Prefectural General Medical Center, Gifu City, Japan
| | - Takeshi Kimura
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
| | - Yasuhiko Ago
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
| | - Mina Nakama
- Clinical Genetics Center, Gifu University Hospital, Gifu City, Japan
| | - Yuka Aoyama
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
- Department of Biomedical Sciences, College of Life and Health Sciences, Education and Training Center of Medical Technology, Chubu University, Kasugai City, Japan
| | - Elsayed Abdelkreem
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
- Department of Pediatrics, Faculty of Medicine, Sohag University, Nasser City, Egypt
| | - Hideki Matsumoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
| | - Hideo Sasai
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
- Clinical Genetics Center, Gifu University Hospital, Gifu City, Japan
| | - Masatake Osawa
- Department of Regenerative Medicine and Applied Medical Sciences, Graduate School of Medicine, Gifu University, Gifu City, Japan
- Gifu Center for Highly Advanced Integration of Nanosciences and Life Sciences (G-CHAIN), Gifu University, Gifu City, Japan
| | - Seiji Yamaguchi
- Department of Pediatrics, Graduate School of Medicine, Shimane University, Izumo City, Japan
| | - Grant A Mitchell
- Division of Medical Genetics, Department of Pediatrics, CHU Sainte-Justine and Université de Montréal, Montréal, Quebec, Canada
| | - Toshiyuki Fukao
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu City, Japan
- Clinical Genetics Center, Gifu University Hospital, Gifu City, Japan
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30
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Ago Y, Otsuka H, Sasai H, Abdelkreem E, Nakama M, Aoyama Y, Matsumoto H, Fujiki R, Ohara O, Akiyama K, Fukui K, Watanabe Y, Nakajima Y, Ohnishi H, Ito T, Fukao T. Japanese patients with mitochondrial 3-hydroxy-3-methylglutaryl-CoA synthase deficiency: In vitro functional analysis of five novel HMGCS2 mutations. Exp Ther Med 2020; 20:39. [PMID: 32952630 PMCID: PMC7480138 DOI: 10.3892/etm.2020.9166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 12/11/2019] [Accepted: 06/17/2020] [Indexed: 02/05/2023] Open
Abstract
Mitochondrial 3-hydroxy-3-methylglutaryl-CoA synthase (HMGCS2) deficiency is a metabolic disorder caused by mutations in the HMGCS2 gene. The present study describes the identification of four cases of HMGCS2 deficiency in Japan. Hepatomegaly and severe metabolic acidosis were observed in all cases. Fatty liver was identified in three cases, which suggested the unavailability of fatty acids. All patients presented with a high C2/C0 ratio, suggesting that the fatty acid oxidation pathway was normal during metabolic crisis. Genetic analyses revealed five rare, novel variants (p.G219E, p.M235T, p.V253A, p.S392L and p.R500C) in HMGCS2. To confirm their pathogenicity, a eukaryotic expression system and a bacterial expression system was adopted that was successfully used to obtain affinity-purified HMGCS2 protein with measurable activity. Purified M235T, S392L and R500C proteins did not retain any residual activity, whilst the V253A variant showed some residual enzymatic activity. Judging from the transient expression experiment in 293T cells, the G219E variant appeared to be unstable. In conclusion, the present study identified five novel variants of HMGCS2 that were indicated to be pathogenic in four patients affected by HMGCS2 deficiency.
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Affiliation(s)
- Yasuhiko Ago
- Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Gifu 501-1194, Japan
| | - Hiroki Otsuka
- Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Gifu 501-1194, Japan
| | - Hideo Sasai
- Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Gifu 501-1194, Japan.,Clinical Genetics Center, Gifu University Hospital, Gifu, Gifu 501-1194, Japan
| | - Elsayed Abdelkreem
- Department of Pediatrics, Faculty of Medicine, Sohag University, Sohag 82524, Egypt
| | - Mina Nakama
- Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Gifu 501-1194, Japan.,Clinical Genetics Center, Gifu University Hospital, Gifu, Gifu 501-1194, Japan
| | - Yuka Aoyama
- Department of Biomedical Sciences, College of Life and Health Sciences, Education and Training Center of Medical Technology, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - Hideki Matsumoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Gifu 501-1194, Japan
| | - Ryoji Fujiki
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | | | - Kaori Fukui
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Yoriko Watanabe
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan.,Research Institute of Medical Mass Spectrometry, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Yoko Nakajima
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Gifu 501-1194, Japan
| | - Tetsuya Ito
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Toshiyuki Fukao
- Department of Pediatrics, Graduate School of Medicine, Gifu University Hospital, Gifu, Gifu 501-1194, Japan.,Clinical Genetics Center, Gifu University Hospital, Gifu, Gifu 501-1194, Japan
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31
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Miyake M, Marugami N, Fujiwara Y, Komura K, Inamoto T, Azuma H, Matsumoto H, Matsuyama H, Nishimura N, Hori S, Owari T, Itami Y, Nakai Y, Fujimoto K. Down-grading of ipsilateral hydronephrosis by neoadjuvant chemotherapy is associated with better oncological outcomes after radical nephroureterectomy in patients with ureteral cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34094-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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32
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Shirakawa C, Matsumoto H, Kataoka Y. HYPERPROGRESSIVE DISEASE IN A NSCLC PATIENT AFTER ANTI-PD-L1 ANTIBODY THERAPY DESPITE TO GOOD RESPONSE OF ANTI-PD-1 ANTIBODY WITH TEMPORARY INTERRUPTION DUE TO IRAE. Chest 2020. [DOI: 10.1016/j.chest.2020.05.316] [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] Open
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33
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Kouzuki M, Ichikawa J, Shirasagi D, Katsube F, Kobashi Y, Matsumoto H, Chao H, Yoshida S, Urakami K. Detection and recognition thresholds for five basic tastes in patients with mild cognitive impairment and Alzheimer's disease dementia. BMC Neurol 2020; 20:110. [PMID: 32216773 PMCID: PMC7098139 DOI: 10.1186/s12883-020-01691-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/18/2020] [Indexed: 11/24/2022] Open
Abstract
Background Patients with Alzheimer’s disease dementia (ADD) are thought to exhibit taste disorders; however, this has not been extensively studied. We investigated gustatory functions and factors affecting taste in patients with ADD or mild cognitive impairment (MCI) and in non-demented controls (NDCs) and evaluated associations between cognitive impairment and gustatory functions. Methods We recruited 29 patients with ADD, 43 with MCI, and 14 with NDCs. We obtained medical and medication history, measured salivary secretion volumes, and performed cognitive function tests, blood tests, whole-mouth gustatory tests, and dietary and gustatory questionnaires. Results Patients with ADD showed significantly higher recognition threshold values than NDCs (p < 0.05). Many individuals did not recognize umami at the maximum concentration, and this happened more frequently in patients with ADD or MCI than in NDCs. Evaluation items other than cognitive function tests did not show significant differences among the groups, but many individuals had decreased salivation, low serum zinc levels, and were on multiple medications. We found a significant correlation between recognition threshold and age (r = 0.229, p < 0.05) and cognitive function test score (r = 0.268, p < 0.05). Conclusions Patients with ADD showed impairment of gustatory function. Gustatory impairment in patients with MCI could not be confirmed. However, many individuals with MCI did not recognize umami, either. Our results suggest that taste disorders in elderly people with cognitive decline occur independently of factors affecting taste such as salivation, zinc levels, or prescription drugs. Trial registration The study was registered in the UMIN Clinical Trials Registry on February 10, 2017, with reference number UMIN000026087.
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Affiliation(s)
- Minoru Kouzuki
- Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, 683-8503, Japan.
| | - Junya Ichikawa
- Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, 683-8503, Japan
| | - Daiki Shirasagi
- Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, 683-8503, Japan
| | - Fumiya Katsube
- Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, 683-8503, Japan
| | - Yuuki Kobashi
- Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, 683-8503, Japan
| | - Hideki Matsumoto
- Research Institute for Bioscience & Fine Chemicals, Ajinomoto Co., Inc., 1-1, Suzuki-Cho, Kawasaki-Ku, Kawasaki-Shi, 210-8681, Japan
| | - Huichia Chao
- Research Institute for Bioscience & Fine Chemicals, Ajinomoto Co., Inc., 1-1, Suzuki-Cho, Kawasaki-Ku, Kawasaki-Shi, 210-8681, Japan
| | - Shintaro Yoshida
- Research Institute for Bioscience & Fine Chemicals, Ajinomoto Co., Inc., 1-1, Suzuki-Cho, Kawasaki-Ku, Kawasaki-Shi, 210-8681, Japan
| | - Katsuya Urakami
- Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishi-cho, Yonago, 683-8503, Japan
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Hayabuchi H, Morita R, Ohta M, Nanri A, Matsumoto H, Fujitani S, Yoshida S, Ito S, Sakima A, Takase H, Kusaka M, Tsuchihashi T. Validation of preferred salt concentration in soup based on a randomized blinded experiment in multiple regions in Japan-influence of umami (L-glutamate) on saltiness and palatability of low-salt solutions. Hypertens Res 2020; 43:525-533. [PMID: 31996813 PMCID: PMC8075858 DOI: 10.1038/s41440-020-0397-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/08/2019] [Accepted: 12/22/2019] [Indexed: 12/12/2022]
Abstract
Sodium reduction is an important public health goal. Individual and population approaches are necessary for reducing the sodium content of processed foods and meals. The aim of the present study is to affirm the effect of monosodium l-glutamate (MSG), an umami substance, on the saltiness or palatability of low-salt solutions and to explore the preferred salt concentration in soup. Five hundred and eighty-four healthy participants from nineteen regions in Japan tasted 0.3, 0.6, and 0.9% NaCl solutions with or without 0.3% MSG. Evaluations of saltiness and palatability for each solution were conducted using a visual analog scale in a double-blinded randomized manner. Saltiness gradually increased depending on the concentration of NaCl. The saltiness of the 0.3% NaCl solution with MSG was rated significantly higher than that without MSG. The palatability ratings were higher for the solutions with MSG than for those without MSG for all NaCl concentrations. In particular, the palatability rating of the 0.3% NaCl solution with MSG was twice as high as that without MSG and was significantly higher than that of the other five test solutions. Furthermore, these results were observed to be approximately the same, irrespective of sex, age, region, etc. Salt reduction is believed to result in a loss of palatability. However, our results suggest that umami can compensate for the loss of palatability caused by salt reduction and that the addition of an appropriate amount of an umami substance can facilitate salt reduction from 0.9 to 0.3% without sacrificing palatability.
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Affiliation(s)
- Hitomi Hayabuchi
- Department of Food Science and Nutrition, Faculty of Human Life and Environment, Nara Women's University, Nara, Japan.
| | - Rieko Morita
- Graduate School of Health and Environmental Sciences, Fukuoka Women's University, Fukuoka, Japan
| | - Masanori Ohta
- Graduate School of Health and Environmental Sciences, Fukuoka Women's University, Fukuoka, Japan
| | - Akiko Nanri
- Graduate School of Health and Environmental Sciences, Fukuoka Women's University, Fukuoka, Japan
| | - Hideki Matsumoto
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc, Kawasaki, Japan
| | - Shoji Fujitani
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc, Kawasaki, Japan
| | - Shintaro Yoshida
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc, Kawasaki, Japan
| | - Sadayoshi Ito
- Division of Nephrology, Endocrinology and Hypertension, Tohoku University Graduate Medicine, Sendai, Japan.,Department of Medicine, Katta General Hospital, Miyagi, Japan
| | - Atsushi Sakima
- Health Administration Center, University of the Ryukyus, Okinawa, Japan
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Ishiwata S, Kasai T, Suda S, Matsumoto H, Sato A, Murata A, Yatsu S, Shitara J, Kato T, Hiki M, Daida H. Prognostic impact of sleep-disordered breathing in hospitalized patients following acute decompensated heart failure. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.469] [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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Blais A, Rochefort GY, Moreau M, Calvez J, Wu X, Matsumoto H, Blachier F. Monosodium Glutamate Supplementation Improves Bone Status in Mice Under Moderate Protein Restriction. JBMR Plus 2019; 3:e10224. [PMID: 31687652 PMCID: PMC6820464 DOI: 10.1002/jbm4.10224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/10/2019] [Accepted: 07/15/2019] [Indexed: 12/14/2022] Open
Abstract
Adequate protein intake during development is critical to ensure optimal bone gain and to attain a higher peak bone mass later. Using a mild protein restriction model in Balb/C mice consuming 6% of their total energy intake as soy protein (LP-SOY)-for which we observed a significantly lower femoral cortical thickness, bone volume, trabecular number, and thickness reduction-we evaluated the effects of monosodium glutamate (MSG) supplementation at different concentrations (0.5, 1, 5, 10, and 20 g/kg of diet) on bone characteristics in LP-SOY-fed mice. After 6 and 12 weeks, LP-SOY-fed mice had lower BMD and reduced body weight related to lower lean mass, which was associated with a reduced IGF-1 level. The negative effect of the LP-SOY diet on BMD correlated with impaired bone formation. MSG supplementation, at 5, 10, and 20 g/kg of diet, and PTH injection, used as a positive control, were able to improve BMD and to increase osteoblast activity markers (P1NP and osteocalcin), as well as glutamine plasma concentration. An analysis of bone microarchitecture found that cortical bone was less sensitive to protein restriction than trabecular bone, and that MSG ingestion was able to preserve bone quality through an increase of collagen synthesis, although it did not allow normal bone growth. Our study reinforces the view that glutamate can act as a functional amino acid for bone physiology and support clinical investigation of glutamate supplementation in adults characterized by poor bone status, notably as a result of insufficient protein intake. © 2019 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Anne Blais
- UMR PNCA, AgroParisTech, INRA Université Paris-Saclay Paris France
| | - Gael Y Rochefort
- EA 2496, Dental School Faculty Université Paris Descartes Montrouge France
| | - Manon Moreau
- UMR PNCA, AgroParisTech, INRA Université Paris-Saclay Paris France
| | - Juliane Calvez
- UMR PNCA, AgroParisTech, INRA Université Paris-Saclay Paris France
| | - Xin Wu
- Key Laboratory of Agro-ecological Process in Subtropical Region, Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha China
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Kawachi H, Tamiya M, Tamiya A, Ishii S, Hirano K, Matsumoto H, Yokoyama T, Ishida T, Ryota K, Fujimoto D, Hosoya K, Suzuki H, Hirashima T, Kanazu M, Sawa N, Uchida J, Morita M, Makio T, Hara S, Kumagai T. Prognostic impact of metastatic sites for pembrolizumab efficacy as first-line therapy in patients with PD-L1 tumour proportion score (TPS) ≥ 50% advanced non-small cell lung cancer: A retrospective multicenter study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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38
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Mącznik A, Tumilty S, Dischiavi S, Sera Y, Azuma K, Matsumoto H, Sato K. Exercise programme to reduce the risk of lower limb injuries in young female athletes – cluster randomised controlled trial protocol. J Sci Med Sport 2019. [DOI: 10.1016/j.jsams.2019.08.113] [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: 11/28/2022]
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Tamiya M, Tamiya A, Hosoya K, Taniguchi Y, Yokoyama T, Fukuda Y, Hirano K, Matsumoto H, Kominami R, Suzuki H, Hirashima T, Uchida J, Morita M, Kanazu M, Sawa N, Hara S, Kinoshita Y, Kumagai T, Fujimoto D. The efficacy and safety of pembrolizumab as a first-line therapy in PD-L1 50% positive advanced NSCLC (HOPE-001). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hori T, Ohnishi H, Kadowaki T, Kawamoto N, Matsumoto H, Ohara O, Fukao T. Autosomal dominant Hashimoto's thyroiditis with a mutation in TNFAIP3. Clin Pediatr Endocrinol 2019; 28:91-96. [PMID: 31384100 PMCID: PMC6646238 DOI: 10.1297/cpe.28.91] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 03/11/2019] [Indexed: 12/04/2022] Open
Abstract
Hashimoto’s thyroiditis (HT) is an autoimmune disease thought to involve a combination of
genetic and environmental factors, but its detailed pathogenesis is unknown. We present a
family with haploinsufficiency of the gene encoding tumor necrosis factor α-induced
protein 3 (TNFAIP3, also known as A20) and show a link
with HT in a three-generation pedigree. Currently, TNFAIP3 polymorphisms
are associated with several autoimmune diseases, and haploinsufficiency of A20 was
recently observed in families with an early-onset autoinflammatory disease resembling
Behçet’s disease. However, HT has not been linked with TNFAIP3 variants.
We analyzed TNFAIP3 and human leukocyte antigen (HLA) in
the family showing HT as an autosomal dominant trait, and identified a novel heterozygous
c.2209delC mutation of TNFAIP3 in the members with HT. The known HLA
haplotypes linked to HT could not be identified. Based on our analysis of this pedigree,
we consider HT as a possible phenotype of A20 haploinsufficiency.
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Affiliation(s)
- Tomohiro Hori
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Tomonori Kadowaki
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Norio Kawamoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Hideki Matsumoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Osamu Ohara
- Department of Technology Development, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Toshiyuki Fukao
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, Japan
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Sugimoto M, Murakami K, Fujitani S, Matsumoto H, Sasaki S. Dietary free glutamate comes from a variety of food products in the United States. Nutr Res 2019; 67:67-77. [PMID: 30979663 DOI: 10.1016/j.nutres.2019.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/19/2019] [Accepted: 03/05/2019] [Indexed: 11/28/2022]
Abstract
Glutamate is naturally present in various foods, such as many savory foods. Therefore, we hypothesized that dietary free glutamate comes from a variety of foods in the United States. The aims of this study were to develop a naturally-occurring free glutamate composition database, in addition to further estimate dietary intake and identify major food sources of free glutamate in US children and adults. The composition database of free glutamate was developed based on analytical values obtained from food analysis and available literature. This database was applied to dietary data obtained from a 24-h dietary recall among 8597 children (2-19 y) and 13 969 adults (≥20 y) in the National Health and Nutrition Examination Survey (2009-2014) to estimate dietary intake and major food sources of free glutamate. Mean intake of free glutamate for children and adults was 258 mg/d (136 mg/1000 kcal) and 322 mg/d (155 mg/1000 kcal), respectively. According to the What We Eat in America category, major food sources of free glutamate were fruits (9.3%), condiments and sauces (9.0%), and mixed dishes-grain based (8.1%) for children and vegetables-excluding potatoes (13.6%), mixed dishes-meat, poultry, seafood (8.5%), and condiments and sauces (7.8%) for adults. For both children and adults, the top food sources included watermelon, raw; tomato catsup; tomatoes, raw; and roll, white, soft. To our knowledge, this is the first study to provide valuable data regarding intake of naturally-occurring free glutamate in foods. We found that dietary free glutamate comes from various foods in the US population, not exclusively from protein-rich foods.
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Affiliation(s)
- Minami Sugimoto
- Department of Social and Preventive Epidemiology, Division of Health Sciences and Nursing, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Kentaro Murakami
- Department of Social and Preventive Epidemiology, School of Public Health, University of Tokyo, Tokyo, Japan
| | - Shoji Fujitani
- Institute for Innovation, Ajinomoto Co., Inc., Kanagawa, Japan
| | | | - Satoshi Sasaki
- Department of Social and Preventive Epidemiology, Division of Health Sciences and Nursing, Graduate School of Medicine, University of Tokyo, Tokyo, Japan; Department of Social and Preventive Epidemiology, School of Public Health, University of Tokyo, Tokyo, Japan.
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Alijanpour M, Sasai H, Abdelkreem E, Ago Y, Soleimani S, Moslemi L, Yamaguchi S, Rezapour M, Hakimi MT, Matsumoto H, Fukao T. Beta-ketothiolase deficiency: A case with unusual presentation of nonketotic hypoglycemic episodes due to coexistent probable secondary carnitine deficiency. JIMD Rep 2019; 46:23-27. [PMID: 31240151 PMCID: PMC6498828 DOI: 10.1002/jmd2.12022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Beta-ketothiolase (T2, mitochondrial acetoacetyl-CoA thiolase) deficiency is an autosomal recessive disorder of isoleucine catabolism and ketone body metabolism that is characterized by increased urinary excretion of 2-methylacetoacetate, 2-methyl-3-hydroxybutyrate, and tiglylglycine. Most patients with T2 deficiency develop their first severe ketoacidotic events between 5 and 24 months of age. We encountered a case of T2 deficiency who developed the first hypoglycemic crisis without ketosis during her neonatal period and repeated such nonketotic hypoglycemic crisis during her infancy and early childhood. This is a very atypical clinical phenotype in T2 deficiency. We finally realized that she also has severe carnitine deficiency which might suppress beta-oxidation resulting in nonketotic hypoglycemia. After carnitine supplementation, she actually developed episodes with ketonuria. Her carnitine deficiency was probably a secondary deficiency which is rare in T2 deficiency but if present, may modify the clinical manifestation of T2 deficiency from ketoacidotic events to hypoketotic hypoglycemic events.
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Affiliation(s)
- Morteza Alijanpour
- Department of PediatricsNon‐Communicable Pediatric Diseases Research Center, Health Research Institute, Babol University of Medical SciencesBabolIR Iran
| | - Hideo Sasai
- Department of Pediatrics, Graduate School of MedicineGifu UniversityGifuJapan
| | - Elsayed Abdelkreem
- Department of Pediatrics, Graduate School of MedicineGifu UniversityGifuJapan
- Department of Pediatrics, Faculty of MedicineSohag UniversitySohagEgypt
| | - Yasuhiko Ago
- Department of Pediatrics, Graduate School of MedicineGifu UniversityGifuJapan
| | | | - Leila Moslemi
- Department of PediatricsNon‐Communicable Pediatric Diseases Research Center, Health Research Institute, Babol University of Medical SciencesBabolIR Iran
| | - Seiji Yamaguchi
- Department of PediatricsShimane University School of MedicineIzumoJapan
| | - Masomeh Rezapour
- School of Traditional Medicine, Traditional Medicine and History of Medical Sciences Research Center, Health Research Institute, Babol University of Medical SciencesBabolIR Iran
| | | | - Hideki Matsumoto
- Department of Pediatrics, Graduate School of MedicineGifu UniversityGifuJapan
| | - Toshiyuki Fukao
- Department of Pediatrics, Graduate School of MedicineGifu UniversityGifuJapan
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Mizuno T, Matsumoto H, Mita K, Kogauchi S, Kiyono Y, Kosaka H, Omata N. Psychosis is an extension of mood swings from the perspective of neuronal plasticity impairments. Med Hypotheses 2019; 124:37-39. [PMID: 30798913 DOI: 10.1016/j.mehy.2019.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/04/2019] [Accepted: 02/01/2019] [Indexed: 12/27/2022]
Abstract
We previously hypothesized that depressive and manic states may be consecutive presentations of the same underlying neuronal plasticity, and that moderate impairments in neuronal plasticity cause depressive states while further impairment to neuronal plasticity causes manic states. Psychopathological or biological relationships between bipolar disorder and schizophrenia have also been revealed. Therefore, in addition to depressive and manic states, psychosis may also be considered a manifestation resulting from additional impairments to neuronal plasticity. In the present manuscript, we hypothesize that moderate and more severe impairments to neuronal plasticity cause depressive and manic states, respectively, and that more serious impairments to neuronal plasticity cause psychosis. Many studies have suggested that impairments in neuronal plasticity contribute to schizophrenia and other mental disorders with psychotic features, and that the impairment of neuronal plasticity in schizophrenia is more severe than that in bipolar disorder. Therefore, we hypothesize more specifically that impairments in neuronal plasticity may be more severe in the order of the cases featuring psychosis, mania, and depression. This progression notably overlaps with the arrangement of schizophrenia, bipolar disorder, and depressive disorder in the DSM-5. Psychotic symptoms are thought to appear further towards the base of the psychopathological hierarchy than are manic or depressive symptoms. If impairments to neuronal plasticity contribute to this psychopathological hierarchy, as we contest that they do, our hypothesis may serve as a bridge between clinical psychopathology, diagnosis, and biological psychiatry.
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Affiliation(s)
- T Mizuno
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - H Matsumoto
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan; Psychiatric Medical Center, Fukui Prefectural Hospital, 2-8-1 Yotsui, Fukui-City, Fukui 910-8526, Japan
| | - K Mita
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - S Kogauchi
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - Y Kiyono
- Biomedical Imaging Research Center, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - H Kosaka
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - N Omata
- Department of Neuropsychiatry, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuokashimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan; Department of Nursing, Faculty of Health Science, Fukui Health Science University, 55 Egami-cho 13-1, Fukui-City, Fukui 910-3190, Japan.
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Tozuka K, Nagai SE, Matsumoto H, Hayashi Y, Kubo K, Tsuboi M, Sato A, Takai K, Wang X, Yamada Y, Inoue K. Abstract P5-12-17: Prognostic and predictive value of serum level of vascular endothelial growth factor-A in metastatic breast cancer patients treated with bevacizumab plus paclitaxel. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p5-12-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Several studies showed that first-line bevacizumab plus chemotherapy for HER2-negative metastatic breast cancer improves progression-free survival and tumor response rate but not overall survival. MERiDiAN trial evaluated plasma vascular endothelial growth factor-A (VEGF-A) prospectively as a predictive biomarker for bevacizumab efficacy in metastatic breast cancer. However, results of this trial do not support using baseline plasma VEGF-A to identify patients benefitting most from bevacizumab. We measured baseline serum VEGF-A level from stored blood samples of metastatic breast cancer patient with treated bevacizumab plus paclitaxel as fist-line and later line therapy, and evaluated a correlation between serum VEGF-A level and efficacy of bevacizumab and prognosis of breast cancer patients tread with bevacizumab, retrospectively.
Patients and methods
We examined blood samples from 57 metastatic breast cancer patients treated with bevacizumab and paclitaxel, after obtaining written informed consent. And, we evaluated a correlation between baseline serum VEGF-A level and time to treatment failure (TTF) and overall survival (OS). We also compared the serum VEGF-A level of response group (CR and PR) and that of non-response group (SD and PD).
Results
Baseline serum level of VEGF-A ranged from 80 to 2079 pg/ml. Cases of treatment line were as follows: first-line, 22 cases (38.6%); second line, 11 cases (19.3%) and third-line and the later line, 24 cases (42.1%). The cutoff identified by ROC curve analysis that was able to differentiate response group and non-response group in first-line setting was 360pg/ml for serum VEGF-A. And, we separated high serum VGEF-A group and low serum VEGF-A group of patients treated with bevacizumab plus paclitaxel.
In patients treated as first line therapy, median TTF was 4.0 months with high serum VGEF-A group versus 5.0 months with low serum VEGF-A group, and median OS was 12 months with high serum VGEF-A group versus 11months with low serum VEGF-A group. There were no significant differences in both TTF and OS in first line setting. In patients treated as second line and later line therapy, median TTF was 2.8 months with high serum VGEF-A group versus 7.1 months with low serum VEGF-A group, and median OS was 6.4 months with high serum VGEF-A group versus 12.7 months with low serum VEGF-A group. The prognosis of high serum VEGF-A group was significantly worse than that of low serum group in both TTF and OS.
The serum VEGF-A level of response group was tend to be higher than that of non-response group in first line setting, and was lower in second and later line setting. However, there were no significant differences.
Conclusion
In this study, serum VEGF-A cannot be a predictor for efficacy of bevacizumab plus paclitaxel as first line therapy for metastatic breast cancer patients. On the other hand, there was a possibility that high serum level of VEGF-A can be a poor prognostic factor in late line therapy setting of bevacizumab.
Citation Format: Tozuka K, Nagai SE, Matsumoto H, Hayashi Y, Kubo K, Tsuboi M, Sato A, Takai K, Wang X, Yamada Y, Inoue K. Prognostic and predictive value of serum level of vascular endothelial growth factor-A in metastatic breast cancer patients treated with bevacizumab plus paclitaxel [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-12-17.
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Affiliation(s)
- K Tozuka
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - SE Nagai
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - H Matsumoto
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - Y Hayashi
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - K Kubo
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - M Tsuboi
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - A Sato
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - K Takai
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - X Wang
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - Y Yamada
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
| | - K Inoue
- Saitama Cancer Center, Ina, Kita-adachi-gun, Saitama-Ken, Japan
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Kamiya K, Koga K, Matsumoto H, Muraki Y, Shibata S. Angular and Abundance Distribution of High-energy Gamma Rays and Neutrons Simulated by GEANT4 Code for Solar Flares. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201920814005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the solar flare observed on June 3, 2012, high energy gamma-rays and neutrons were observed. The event includes a remarkable feature of a high neutron/gamma-ratio in the secondary particles. We have examined whether this high n/γ-ratio can be explained by simulation. As a result of simulations using the GEANT4 program, the high n/γ-ratio may be reproduced for the case that helium and other heavy ions were dominantly accelerated in the flare.
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Fukao T, Sasai H, Aoyama Y, Otsuka H, Ago Y, Matsumoto H, Abdelkreem E. Recent advances in understanding beta-ketothiolase (mitochondrial acetoacetyl-CoA thiolase, T2) deficiency. J Hum Genet 2018; 64:99-111. [PMID: 30393371 DOI: 10.1038/s10038-018-0524-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/18/2018] [Accepted: 10/03/2018] [Indexed: 02/08/2023]
Abstract
Beta-ketothiolase (mitochondrial acetoacetyl-CoA thiolase, T2) deficiency (OMIM #203750, *607809) is an inborn error of metabolism that affects isoleucine catabolism and ketone body metabolism. This disorder is clinically characterized by intermittent ketoacidotic crises under ketogenic stresses. In addition to a previous 26-case series, four series of T2-deficient patients were recently reported from different regions. In these series, most T2-deficient patients developed their first ketoacidotic crises between the ages of 6 months and 3 years. Most patients experienced less than three metabolic crises. Newborn screening (NBS) for T2 deficiency is performed in some countries but some T2-deficient patients have been missed by NBS. Therefore, T2 deficiency should be considered in patients with severe metabolic acidosis, even in regions where NBS for T2 deficiency is performed. Neurological manifestations, especially extrapyramidal manifestations, can occur as sequelae to severe metabolic acidosis; however, this can also occur in patients without any apparent metabolic crisis or before the onset of metabolic crisis.
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Affiliation(s)
- Toshiyuki Fukao
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 500-1194, Japan. .,Division of Clinical Genetics, Gifu University Hospital, Gifu, Japan.
| | - Hideo Sasai
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 500-1194, Japan
| | - Yuka Aoyama
- Department of Biomedical Sciences, College of Life and Health Sciences, Education and Training Center of Medical Technology, Chubu University, Kasugai, Japan
| | - Hiroki Otsuka
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 500-1194, Japan
| | - Yasuhiko Ago
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 500-1194, Japan
| | - Hideki Matsumoto
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 500-1194, Japan
| | - Elsayed Abdelkreem
- Department of Pediatrics, Graduate School of Medicine, Gifu University, Gifu, 500-1194, Japan.,Department of Pediatrics, Faculty of Medicine, Sohag University, Sohag, Egypt
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Takemura T, Kataoka Y, Uneno Y, Otoshi T, Matsumoto H, Tsutsumi Y, Tsujimoto Y, Yuasa M, Yoshioka T, Wada H. The reporting quality of prediction models in oncology journals: A systematic review. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy433.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Higuchi Y, Matsumoto H, Matsubara C, Morimoto N, Ishida R, Masuda T, Iwata A, Fuchioka S. SITTING TRUNK EXERCISES FOR OLDER ADULTS TO IMPROVE BALANCE AND MOBILITY: A PILOT STUDY. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | | | | | | | - T Masuda
- Shiga University of Medical Science Hospital
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Narita N, Ito Y, Takabayashi T, Okamoto M, Imoto Y, Ogi K, Tokunaga T, Matsumoto H, Fujieda S. Suppression of SESN1 reduces cisplatin and hyperthermia resistance through increasing reactive oxygen species (ROS) in human maxillary cancer cells. Int J Hyperthermia 2018; 35:269-278. [PMID: 30300027 DOI: 10.1080/02656736.2018.1496282] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
INTRODUCTION Cisplatin is used as a standard chemotherapeutic agent for head and neck cancer treatment. However, some head and neck cancers have cisplatin resistance, leading to difficulty in treatment and poor prognosis. Overcoming cisplatin resistance remains an important strategy to improve prognoses for head and neck cancer patients. OBJECTIVE Elucidation of the mechanisms underlying cisplatin resistance can suggest novel targets to enhance the anticancer effects of cisplatin for treating head and neck cancers. MATERIAL AND METHODS We used a cisplatin-resistant human maxillary cancer cell line, IMC-3CR to analyse the cisplatin resistance mechanisms. Cisplatin-induced genes were analysed in IMC-3CR cells using PCR array. Among the genes with expression increased by cisplatin, we specifically examined SESN1. SESN family reportedly regenerates peroxiredoxin and suppresses oxidative DNA injury by reactive oxygen species (ROS), which can be induced by chemotherapeutic agents such as cisplatin, radiation, and hyperthermia. The function of SESN1 in cisplatin resistance and ROS generation were analysed using specific RNAi. RESULTS Results show that SESN1 was induced by cisplatin treatment in IMC-3CR cells. Suppression of SESN1 by RNAi induced apoptosis and reduced cell viability through enhancement of ROS after cisplatin treatment. Moreover, suppression of SESN1 enhanced the cell-killing effects of hyperthermia with increased ROS, but did not affect the cell-killing effects of radiation. CONCLUSIONS This study demonstrated the participation of SESN1 in cisplatin and hyperthermia resistance of human head and neck cancers. SESN1 is a novel molecular target to overcome cisplatin resistance and hyperthermia resistance and improve head and neck cancer treatment.
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Affiliation(s)
- Norihiko Narita
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Yumi Ito
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Tetsuji Takabayashi
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Masayuki Okamoto
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Yoshimasa Imoto
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Kazuhiro Ogi
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Takahiro Tokunaga
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Hideki Matsumoto
- b Department of Experimental Radiology and Health Physics, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
| | - Shigeharu Fujieda
- a Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medical Sciences , University of Fukui , Fukui , Japan
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Osawa H, Shinozaki E, Nakamura M, Ohhara Y, Shindo Y, Shiozawa M, Uetake H, Matsumoto H, Ureshino N, Satake H, Kobayashi T, Suto T, Kitano S, Ohashi Y, Uemura K, Yamaguchi K. Phase II study of cetuximab rechallenge in patients with ras wild-type metastatic colorectal cancer: E-rechallenge trial. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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