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Kikuchi K, Ikeuchi T, Awata S. Estimation of the number of missing older persons with dementia in Japan. Geriatr Gerontol Int 2024; 24:499-501. [PMID: 38597071 DOI: 10.1111/ggi.14863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/19/2024] [Accepted: 03/05/2024] [Indexed: 04/11/2024]
Affiliation(s)
- Kazunori Kikuchi
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Tomoko Ikeuchi
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Shuichi Awata
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
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Mishima K, Tsuji T, Kodama K, Hayashida H, Kikuchi K, Okuno S, Ochi K, Hiraoka D, Ishimura D, Mizuki S. Сarotid artery ultrasonography for diagnosis and monitoring of cervical and intracranial large vessel vasculitis in a patient with systemic lupus erythematosus and Sjögren syndrome. QJM 2024; 117:63-65. [PMID: 37788134 DOI: 10.1093/qjmed/hcad223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Indexed: 10/05/2023] Open
Affiliation(s)
- K Mishima
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - T Tsuji
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - K Kodama
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - H Hayashida
- Department of Neurology, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - K Kikuchi
- Department of Radiology, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - S Okuno
- Department of Ophthalmology, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - K Ochi
- Clinical Training Center, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - D Hiraoka
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - D Ishimura
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - S Mizuki
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
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Kikuchi K, Ikeuchi T, Awata S. A study on the incidence rate of missing persons with dementia living alone in Chiba prefecture, Japan. Geriatr Gerontol Int 2023; 23:890-891. [PMID: 37823231 DOI: 10.1111/ggi.14695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/20/2023] [Indexed: 10/13/2023]
Affiliation(s)
- Kazunori Kikuchi
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Tomoko Ikeuchi
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Shuichi Awata
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
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Kikuchi K, Ooguchi T, Ikeuchi T, Awata S. Exploratory study on the factors related with the early detection of missing older persons with dementia living alone in Japan. Geriatr Gerontol Int 2023; 23:362-365. [PMID: 37039040 DOI: 10.1111/ggi.14580] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/06/2023] [Accepted: 03/18/2023] [Indexed: 04/12/2023]
Abstract
AIM To clarify the factors related to the early detection of missing older persons with dementia (PwD) who lived alone in Japan. METHODS We carried out a multiple regression analysis with data from 88 missing PwD. RESULTS The location of the discovery was within the municipality where the missing PwD lived. Furthermore, the use of long-term care insurance services was significantly associated with early detection. CONCLUSION Missing PwD were located within the municipality in which they lived, which meant that the individual was found before they went far. In addition, with the long-term care insurance services, professionals should regularly visit the home of PwD according to a care plan. Planned regular visits might trigger the early recognition of a missing person with dementia and enable early search activities. Therefore, use of long-term care insurance services might lead to the early detection of missing PwD living alone. Geriatr Gerontol Int 2023; ••: ••-••.
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Affiliation(s)
- Kazunori Kikuchi
- Research Team for Human Care, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Tatsuya Ooguchi
- Department of Social Welfare, Takasaki University of Health and Welfare, Takasaki-shi, Japan
| | - Tomoko Ikeuchi
- Research Team for Human Care, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Shuichi Awata
- Research Team for Human Care, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
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Ito K, Tsuda S, Yamashita M, Kikuchi K, Hatakeyama A, Ogisawa F, Furuta K, Awata S. [The expected role of Dementia Support Doctors in dealing with complex cases of older people with dementia]. Nihon Ronen Igakkai Zasshi 2023; 60:251-260. [PMID: 37730326 DOI: 10.3143/geriatrics.60.251] [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] [Indexed: 09/22/2023]
Abstract
AIM The present studyinvestigated the roles expected of Dementia Support Doctors (DSDs) in dealing with complex cases. METHODS The participants were attendees of the education programs organised by the Center for Promoting Dementia Support and the Medical Center for Dementia at the Tokyo Metropolitan Geriatric Hospital from April 2021 to March 2022. A self-administered postal questionnaire survey was conducted. The questionnaire included items on the basic attributes of the participants, their experiences with the issues associated with complex cases, and role expectations of consulting/collaboration partners when dealing with complex cases. RESULTS The valid response rate was 49.3%. DSDs were expected by primary physicians, Community General Support Center staff and administrative staff to diagnose dementia and give advice on support strategies for complex cases. Primary physicians further expected them to initiate pharmacotherapy with anti-dementia drugs and address the pharmacotherapy needs for managing Behavioral and Psychological Symptoms of Dementia. It was also found that DSDs' experience with complex cases was comparable to that of the staff at the Medical Centers for Dementia. Of note, DSDs were mentioned less frequently as consulting/collaboration partners than Medical Centers for Dementia and primary physicians. CONCLUSIONS The study showed that DSDs play an important role in dealing with complex cases. The roles of DSDs and ways to collaborate with them need to be communicated through interprofessional education.
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Affiliation(s)
- Kae Ito
- Tokyo Metropolitan Institute of Gerontology, Research Team for Human Care
- Tokyo Metropolitan Geriatric Hospital, Center for Promoting Dementia Support
- Tokyo Metropolitan Geriatric Hospital, Medical Center for Dementia
| | - Shuji Tsuda
- Tokyo Metropolitan Institute of Gerontology, Research Team for Human Care
| | - Mari Yamashita
- Tokyo Metropolitan Geriatric Hospital, Integrated Research Initiative for Living Well with Dementia
| | - Kazunori Kikuchi
- Tokyo Metropolitan Institute of Gerontology, Research Team for Human Care
| | - Akira Hatakeyama
- Tokyo Metropolitan Geriatric Hospital, Center for Promoting Dementia Support
- Tokyo Metropolitan Geriatric Hospital, Medical Center for Dementia
| | - Fumiko Ogisawa
- Tokyo Metropolitan Geriatric Hospital, Medical Center for Dementia
| | - Ko Furuta
- Tokyo Metropolitan Geriatric Hospital, Center for Promoting Dementia Support
- Tokyo Metropolitan Geriatric Hospital, Medical Center for Dementia
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6
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Kikuchi K, Ooguchi T, Ikeuchi T, Ito K, Awata S. Current status and issues of missing older persons with dementia living alone in Japan. Geriatr Gerontol Int 2022; 22:684-686. [PMID: 35830971 DOI: 10.1111/ggi.14434] [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] [Received: 06/30/2021] [Revised: 04/10/2022] [Accepted: 06/17/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Kazunori Kikuchi
- Research Team for Human Care, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Tatsuya Ooguchi
- Department of Social Welfare, Takasaki University of Health and Welfare, Takasaki, Japan
| | - Tomoko Ikeuchi
- Research Team for Human Care, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Kae Ito
- Research Team for Human Care, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Shuichi Awata
- Research Team for Human Care, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Togao O, Obara M, Kikuchi K, Helle M, Arimura K, Nishimura A, Wada T, Murazaki H, Van Cauteren M, Hiwatashi A, Ishigami K. Vessel-Selective 4D-MRA Using Superselective Pseudocontinuous Arterial Spin-Labeling with Keyhole and View-Sharing for Visualizing Intracranial Dural AVFs. AJNR Am J Neuroradiol 2022; 43:368-375. [PMID: 35241425 PMCID: PMC8910818 DOI: 10.3174/ajnr.a7426] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 12/11/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE An accurate assessment of the hemodynamics of an intracranial dural AVF is necessary for treatment planning. We aimed to investigate the utility of 4D-MRA based on superselective pseudocontinuous arterial spin-labeling with CENTRA-keyhole and view-sharing (4D-S-PACK) for the vessel-selective visualization of intracranial dural AVFs. MATERIALS AND METHODS We retrospectively analyzed the images of 21 patients (12 men and 9 women; mean age, 62.2 [SD,19.2] years) with intracranial dural AVFs, each of whom was imaged with DSA, 4D-S-PACK, and nonselective 4D-MRA based on pseudocontinuous arterial spin-labeling combined with CENTRA-keyhole and view-sharing (4D-PACK). The shunt location, venous drainage patterns, feeding artery identification, and Borden classification were evaluated by 2 observers using both MRA methods on separate occasions. Vessel selectivity was evaluated on 4D-S-PACK. RESULTS Shunt locations were correctly evaluated in all 21 patients by both observers on both MRA methods. With 4D-S-PACK, observers 1 and 2 detected 76 (80.0%, P < .001) and 73 (76.8%, P < .001) feeding arteries of the 95 feeding arteries identified on DSA but only 39 (41.1%) and 46 (48.4%) feeding arteries with nonselective 4D-PACK, respectively. Both observers correctly identified 10 of the 11 patients with cortical venous reflux confirmed by DSA with both 4D-S-PACK and 4D-PACK (sensitivity = 90.9%, specificity = 90.9% for each method), and they made accurate Borden classifications in 20 of the 21 patients (95.2%) on both MRA methods. Of the 84 vessel territories examined, vessel selectivity was graded 3 or 4 in 73 (91.2%) and 66 (88.0%) territories by observers 1 and 2, respectively. CONCLUSIONS 4D-S-PACK is useful for the identification of feeding arteries and accurate classifications of intracranial dural AVFs and can be a useful noninvasive clinical tool.
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Affiliation(s)
- O. Togao
- From the Departments of Molecular Imaging & Diagnosis (O.T.)
| | - M. Obara
- Philips Japan (M.O., M.V.C.), Tokyo, Japan
| | | | - M. Helle
- Philips Research (M.H.), Hamburg, Germany
| | - K. Arimura
- Neurosurgery (K.A., A.N.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A. Nishimura
- Neurosurgery (K.A., A.N.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T. Wada
- Division of Radiology (T.W., H.M.), Department of Medical Technology, Kyushu University Hospital, Fukuoka, Japan
| | - H. Murazaki
- Division of Radiology (T.W., H.M.), Department of Medical Technology, Kyushu University Hospital, Fukuoka, Japan
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Ikeuchi T, Suzuki M, Kikuchi K, Kan A, Shimada C. Challenges in caring for people with dementia during COVID-19: Findings from long-term care facilities across Japan. Innov Aging 2021. [PMCID: PMC8680853 DOI: 10.1093/geroni/igab046.2672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
There have been concerns about how social distance policies and lockdowns due to COVID-19 have affected loneliness and depression among older adults in ways that may magnify racial disparities in health. We conducted panel logistic regression analyses with random effects using national data spanning 2004 to 2016 and the COVID-19 module (Wave 2020, administered in June and September) from the Health & Retirement Study (n=15,504). Individuals living in a nursing home, diagnosed with dementia or Alzheimer’s disease, and 64 years of age or younger were excluded from analyses. Age, gender, Hispanic status, education, marital status, working status, wealth, BMI, physical activity, smoking, drinking, and difficulty in meal preparation, eating without help, and grocery shopping were included as control variables. Findings suggest that older adults did not appear to experience increased loneliness during the pandemic relative to prior waves. However, Wave 2020 was an independent risk factor for depression. Greater in-person contact (OR: 0.97, CI: 0.95-0.99, p-val: 0.001) and remote contact (OR: 0.99, CI: 0.97-0.996, p-val: 0.008) were each independently associated with slightly decreased depression. Older Black Americans tended to be more depressed than their White counterparts (OR: 1.50, CI: 1.20-1.86, p-val: <0.001). However, a null interaction between race and wave suggested that Black Americans did not experience more increased depression in 2020 relative to prior waves. Analyses suggest that the COVID-19 pandemic might change at-risk groups for depression and communication by remote technology – often considered an inferior but necessary stopgap measure. Implications for practice and policy will be discussed.
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Affiliation(s)
- Tomoko Ikeuchi
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Tokyo, Japan
| | - Mizue Suzuki
- Hamamatsu Universuty school of medicne, Hamamatsu, Shizuoka, Japan
| | - Kazunori Kikuchi
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Tokyo, Japan
| | - Akiko Kan
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Tokyo, Japan
| | - Chiho Shimada
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Tokyo, Japan
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Hiep N, Somfai T, Hirao Y, Dang-Nguyen T, Men N, Linh N, Nguyen B, Noguchi J, Kaneko H, Kikuchi K. 39 Efficacy of roscovitine and dibutyryl cAMP to block premature meiosis in porcine oocytes vitrified at the germinal vesicle stage and their effect on subsequent embryo development. Reprod Fertil Dev 2021; 34:254. [PMID: 35231292 DOI: 10.1071/rdv34n2ab39] [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: 11/23/2022] Open
Affiliation(s)
- N Hiep
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, Japan
| | - T Somfai
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, Japan
| | - Y Hirao
- Institute of Livestock and Grassland Science, NARO, Tsukuba, Ibaraki, Japan
| | - T Dang-Nguyen
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, Japan
| | - N Men
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, Japan
| | - N Linh
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - B Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - J Noguchi
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, Japan
| | - H Kaneko
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, Japan
| | - K Kikuchi
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, Japan
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Hata S, Kano K, Kikuchi K, Kinoshita S, Sobu Y, Saito H, Saito T, Saido TC, Sano Y, Taru H, Aoki J, Komano H, Tomita T, Natori S, Suzuki T. Suppression of amyloid-β secretion from neurons by cis-9, trans-11-octadecadienoic acid, an isomer of conjugated linoleic acid. J Neurochem 2021; 159:603-617. [PMID: 34379812 DOI: 10.1111/jnc.15490] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 08/04/2021] [Indexed: 11/28/2022]
Abstract
Two common conjugated linoleic acids (LAs), cis-9, trans-11 CLA (c9,t11 CLA) and trans-10, cis-12 CLA (t10,c12 CLA), exert various biological activities. However, the effect of CLA on the generation of neurotoxic amyloid-β (Aβ) protein remains unclear. We found that c9,t11 CLA significantly suppressed the generation of Aβ in mouse neurons. CLA treatment did not affect the level of β-site APP-cleaving enzyme 1 (BACE1), a component of active γ-secretase complex presenilin 1 amino-terminal fragment, or Aβ protein precursor (APP) in cultured neurons. BACE1 and γ-secretase activities were not directly affected by c9,t11 CLA. Localization of BACE1 and APP in early endosomes increased in neurons treated with c9,t11 CLA; concomitantly, the localization of both proteins was reduced in late endosomes, the predominant site of APP cleavage by BACE1. The level of CLA-containing phosphatidylcholine (CLA-PC) increased dramatically in neurons incubated with CLA. Incorporation of phospholipids containing c9,t11 CLA, but not t10,c12 CLA, into the membrane may affect the localization of some membrane-associated proteins in intracellular membrane compartments. Thus, in neurons treated with c9,t11 CLA, reduced colocalization of APP with BACE1 in late endosomes may decrease APP cleavage by BACE1 and subsequent Aβ generation. Our findings suggest that accumulation of c9,t11 CLA-PC/LPC in neuronal membranes suppresses production of neurotoxic Aβ in neurons.
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Affiliation(s)
- Saori Hata
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8566, Japan.,Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Kuniyuki Kano
- Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan.,Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, 980-8578, Japan
| | - Kazunori Kikuchi
- Department of Neuropathology and Neurosciences, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Shoichi Kinoshita
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Yuriko Sobu
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.,Advanced Prevention and Research Laboratory for Dementia, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Haruka Saito
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Takashi Saito
- Laboratory for Proteolytic Neuroscience, RIKEN Center for Brain Science Institute, Wako, 351-0198, Japan.,Department of Neurocognitive Science, Institute of Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan
| | - Takaomi C Saido
- Laboratory for Proteolytic Neuroscience, RIKEN Center for Brain Science Institute, Wako, 351-0198, Japan
| | - Yoshitake Sano
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, 278-8510, Japan
| | - Hidenori Taru
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Junken Aoki
- Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan.,Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, 980-8578, Japan
| | - Hiroto Komano
- Advanced Prevention and Research Laboratory for Dementia, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.,Division of Neuroscience, School of Pharmacy, Iwate Medical University, Yahaba-cho, 028-3694, Japan
| | - Taisuke Tomita
- Department of Neuropathology and Neurosciences, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Shunji Natori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Toshiharu Suzuki
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.,Advanced Prevention and Research Laboratory for Dementia, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
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Kikuchi K, Tatebe T, Sudo Y, Yokoyama M, Kidana K, Chiu YW, Takatori S, Arita M, Hori Y, Tomita T. GPR120 Signaling Controls Amyloid-β Degrading Activity of Matrix Metalloproteinases. J Neurosci 2021; 41:6173-6185. [PMID: 34099509 PMCID: PMC8276734 DOI: 10.1523/jneurosci.2595-20.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 05/16/2021] [Accepted: 05/26/2021] [Indexed: 11/21/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by the extensive deposition of amyloid-β peptide (Aβ) in the brain. Brain Aβ level is regulated by a balance between Aβ production and clearance. The clearance rate of Aβ is decreased in the brains of sporadic AD patients, indicating that the dysregulation of Aβ clearance mechanisms affects the pathologic process of AD. Astrocytes are among the most abundant cells in the brain and are implicated in the clearance of brain Aβ via their regulation of the blood-brain barrier, glymphatic system, and proteolytic degradation. The cellular morphology and activity of astrocytes are modulated by several molecules, including ω3 polyunsaturated fatty acids, such as docosahexaenoic acid, which is one of the most abundant lipids in the brain, via the G protein-coupled receptor GPR120/FFAR4. In this study, we analyzed the role of GPR120 signaling in the Aβ-degrading activity of astrocytes. Treatment with the selective antagonist upregulated the matrix metalloproteinase (MMP) inhibitor-sensitive Aβ-degrading activity in primary astrocytes. Moreover, the inhibition of GPR120 signaling increased the levels of Mmp2 and Mmp14 mRNAs, and decreased the expression levels of tissue inhibitor of metalloproteinases 3 (Timp3) and Timp4, suggesting that GPR120 negatively regulates the astrocyte-derived MMP network. Finally, the intracerebral injection of GPR120-specific antagonist substantially decreased the levels of TBS-soluble Aβ in male AD model mice, and this effect was canceled by the coinjection of an MMP inhibitor. These data indicate that astrocytic GPR120 signaling negatively regulates the Aβ-degrading activity of MMPs.SIGNIFICANCE STATEMENT The level of amyloid β (Aβ) in the brain is a crucial determinant of the development of Alzheimer's disease. Here we found that astrocytes, which are the most abundant cell type in the CNS, harbor degrading activity against Aβ, which is regulated by GPR120 signaling. GPR120 is involved in the inflammatory response and obesity in peripheral organs. However, the pathophysiological role of GPR120 in Alzheimer's disease remains unknown. We found that selective inhibition of GPR120 signaling in astrocytes increased the Aβ-degrading activity of matrix metalloproteases. Our results suggest that GPR120 in astrocytes is a novel therapeutic target for the development of anti-Aβ therapeutics.
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Affiliation(s)
- Kazunori Kikuchi
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Takuya Tatebe
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, Tokyo, 164-8530, Japan
| | - Yuki Sudo
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Miyabishara Yokoyama
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Kiwami Kidana
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
- Department of Home Care Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yung Wen Chiu
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Sho Takatori
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Makoto Arita
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Tokyo, 105-8512, Japan
- Laboratory for Metabolomics, RIKEN Center for Integrative Medical Sciences, Kanagawa, 230-0045, Japan
| | - Yukiko Hori
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Taisuke Tomita
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
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12
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Fujita Y, Kano K, Kishino S, Nagao T, Shen X, Sato C, Hatakeyama H, Ota Y, Niibori S, Nomura A, Kikuchi K, Yasuno W, Takatori S, Kikuchi K, Sano Y, Tomita T, Suzuki T, Aoki J, Zou K, Natori S, Komano H. Dietary cis-9, trans-11-conjugated linoleic acid reduces amyloid β-protein accumulation and upregulates anti-inflammatory cytokines in an Alzheimer's disease mouse model. Sci Rep 2021; 11:9749. [PMID: 33980877 PMCID: PMC8115273 DOI: 10.1038/s41598-021-88870-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/19/2021] [Indexed: 12/14/2022] Open
Abstract
Conjugated linoleic acid (CLA) is an isomer of linoleic acid (LA). The predominant dietary CLA is cis-9, trans-11-CLA (c-9, t-11-CLA), which constitutes up to ~ 90% of total CLA and is thought to be responsible for the positive health benefits associated with CLA. However, the effects of c-9, t-11-CLA on Alzheimer's disease (AD) remain to be elucidated. In this study, we investigated the effect of dietary intake of c-9, t-11-CLA on the pathogenesis of an AD mouse model. We found that c-9, t-11-CLA diet-fed AD model mice significantly exhibited (1) a decrease in amyloid-β protein (Aβ) levels in the hippocampus, (2) an increase in the number of microglia, and (3) an increase in the number of astrocytes expressing the anti-inflammatory cytokines, interleukin-10 and 19 (IL-10, IL-19), with no change in the total number of astrocytes. In addition, liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatographic analysis revealed that the levels of lysophosphatidylcholine (LPC) containing c-9, t-11-CLA (CLA-LPC) and free c-9, t-11-CLA were significantly increased in the brain of c-9, t-11-CLA diet-fed mice. Thus, dietary c-9, t-11-CLA entered the brain and appeared to exhibit beneficial effects on AD, including a decrease in Aβ levels and suppression of inflammation.
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Affiliation(s)
- Yu Fujita
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Kuniyuki Kano
- Laboratory of Molecular and Cellular Biochemistry, Graduates School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Shigenobu Kishino
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan
| | - Toshihiro Nagao
- Osaka Research Institute of Industrial Science and Technology, Morinomiya Center, Joto-ku, Osaka, Japan
| | - Xuefeng Shen
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Chiharu Sato
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Hatsune Hatakeyama
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Yume Ota
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Sho Niibori
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Ayako Nomura
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Kota Kikuchi
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
- Department of Pharmacy, Japanese Red Cross Morioka Hospital, Morioka, Iwate, Japan
| | - Wataru Yasuno
- Institute for Biomedical Sciences, Library, Iwate Medical University, Nishitokuta, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - Sho Takatori
- Laboratory of Neuropathology and Neuroscience, Graduates School of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazunori Kikuchi
- Laboratory of Neuropathology and Neuroscience, Graduates School of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Yoshitake Sano
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, Noda, Japan
| | - Taisuke Tomita
- Laboratory of Neuropathology and Neuroscience, Graduates School of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Toshiharu Suzuki
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Junken Aoki
- Laboratory of Molecular and Cellular Biochemistry, Graduates School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
- Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Kun Zou
- Department of Biochemistry, School of Medicine, Nagoya City University, Nagoya, Aichi, Japan
| | - Shunji Natori
- Graduates School of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan.
| | - Hiroto Komano
- Division of Neuroscience, School of Pharmacy, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan.
- Advanced Prevention and Research Laboratory for Dementia, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
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Ide F, Ito Y, Nishimura M, Kikuchi K. Ectomesenchymal chondromyxoid tumour on the lateral border of the tongue: some historical and clinical considerations. Int J Oral Maxillofac Surg 2021; 50:1400-1401. [PMID: 33663898 DOI: 10.1016/j.ijom.2020.11.025] [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] [Received: 08/27/2020] [Accepted: 11/20/2020] [Indexed: 10/22/2022]
Affiliation(s)
- F Ide
- Division of Pathology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Saitama, Japan; Department of Diagnostic Pathology, Tsurumi University Dental Hospital, Tsurumi, Yokohama, Japan
| | - Y Ito
- Department of Diagnostic Pathology, Tsurumi University Dental Hospital, Tsurumi, Yokohama, Japan.
| | - M Nishimura
- Division of Pathology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Saitama, Japan
| | - K Kikuchi
- Division of Pathology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Saitama, Japan
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Kikuchi K, Hashimoto H, Hosokawa T, Nawata K, Hirao A. Relationship between pedestrian detection specifications of parking sensor and potential safety benefits. Accid Anal Prev 2021; 151:105951. [PMID: 33360876 DOI: 10.1016/j.aap.2020.105951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 11/23/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
Measures to protect vulnerable road users during low-speed maneuvers are required. For example, systems that use cameras to display the vehicle's rearview are popular. However, some vehicles are difficult to equip with a rear view camera system. To avoid a crash when driving in reverse, it is also effective to identify the presence of pedestrians via an audible warning using a device (e.g., clearance sonar). It may be cheaper to install than a rearview camera system. Installation cost is also important for the spread of equipment that reduces a crash. It is necessary to clarify the minimum specifications that balance cost and reduce crashes. Device specifications (e.g., detection distance and response delay) may affect the crash reduction rate. There should be a detection distance required for the sonar to have the same crash reduction effect as the rear view camera system. Thus, in this study, we conducted experiments and obtained data about how a vehicle moves and driver reactions to audible warnings when driving in reverse. Based on the acquired data, a numerical simulation was performed to determine whether a driver could avoid a crash under various circumstances. As a result, it was shown that the clearance sonar must have a detection distance of 0.8 m or more to expect the same effect as a rearview camera system. In other words, to expect sonar to have the same performance as a rearview camera, a detection distance of at least 0.8 m should be set as a specification.
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Affiliation(s)
- Kazunori Kikuchi
- Safety Research Division, Japan Automobile Research Institute (JARI), 2530, Karima, Tsukuba, Ibaraki 305-0822, Japan.
| | - Hiroshi Hashimoto
- Safety Research Division, Japan Automobile Research Institute (JARI), 2530, Karima, Tsukuba, Ibaraki 305-0822, Japan
| | - Takashi Hosokawa
- Safety Research Division, Japan Automobile Research Institute (JARI), 2530, Karima, Tsukuba, Ibaraki 305-0822, Japan
| | - Katsumi Nawata
- Japan Automobile Standards Internationalization Center (JASIC), 3-2-5, Yotsuya, Shinjuku-ku, Tokyo 160-0004, Japan
| | - Akinari Hirao
- Japan Automobile Standards Internationalization Center (JASIC), 3-2-5, Yotsuya, Shinjuku-ku, Tokyo 160-0004, Japan
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Somfai T, Hiep NT, Kikuchi K, Hirao Y. 29 The effect of vitrification at the immature stage on DNA methylation in porcine oocytes and its relevance to subsequent embryo development. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Oocyte vitrification is an important approach for invitro gene banking of female germplasm; however, in pigs, it hampers embryo development. In cattle, vitrification at the MII stage was reported to alter epigenetic status in oocytes and even in subsequently developing embryos (Chen et al. 2016 Theriogenology 86, 868-878). The present study investigated the effect of vitrification at the immature stage of porcine oocytes on DNA methylation status and its relevance to subsequent embryo development. Immature cumulus–oocyte complexes were vitrified in microdrops and warmed (vitrified group) or treated with cryoprotectant agents (17.5% ethylene glycol + 17.5% propylene glycol, CPA group) by our method (Appeltant et al. 2018 Cryobiology 85, 87-94). Then they were subjected to IVM, parthenogenetic activation (PA), and embryo culture. From each batch, a group of oocytes was processed without treatment (control group). Oocyte survival and polar body extrusion were recorded after IVM. Cleavage and blastocyst developmental rates were recorded on Day 2 and 6 of culture, respectively (Day 0=PA). In each replication, DNA methylation was assayed in representative oocytes at the MII stage after IVM and in embryos at the 2- to 4-cell stage on Day 2 by immunostaining with 5-methylcytosine (5mC). Relative fluorescent intensity of 5mC in the chromatin was compared among groups. The experiment was replicated 3 times. Data were analysed by ANOVA. After IVM, there was no significant difference among the control, CPA, and vitrified groups in terms of the percentage of live oocytes (99.3, 96.4, and 94.0%, respectively) or polar body extrusion (88.6, 86.9, and 79.6%, respectively). After PA of oocytes with a polar body, there was no difference between the control and CPA groups in the percentage of cleavage (84.1 and 80.7%, respectively) or blastocyst development of cleaved embryos (63.3 and 79.3%, respectively). However, in the vitrified group, cleavage and blastocyst development rates (46.6 and 33.5%, respectively) were reduced (P<0.05) compared with the other groups. The 5mC fluorescence in the DNA of oocytes at the MII stage in the CPA and vitrified groups were similar and significantly lower than that in the control group (0.88±0.02, 0.87±0.001, and 1.0±0.02, respectively) but higher than that in the negative control processed without primary antibody (0.33±0.02). In the embryos at the 2- to 4-cell stage, 5mC fluorescence was not significantly different among the control, CPA, and vitrified groups (1.0±0.1, 0.99±0.1, and 0.96±0.1, respectively) but was significantly higher than that of the negative control (0.36±0.04). In conclusion, CPA treatment reduced DNA methylation levels in oocytes. However, it was restored during early embryo development and did not affect blastocyst development. The results suggest that reduced DNA methylation in vitrified oocytes is caused by CPA but it may not be responsible for their reduced ability to develop to blastocysts.
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Hiep NT, Somfai T, Hirao Y, Dang-Nguyen TQ, Men NT, Linh NV, Nguyen BX, Noguchi J, Kaneko H, Kikuchi K. 30 The importance of cumulus cells for the survival and timing of meiotic resumption of porcine oocytes vitrified at the immature stage. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab30] [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: 11/23/2022] Open
Abstract
Previous research revealed that vitrification at the immature (the germinal vesicle, GV) stage triggers premature meiotic resumption in cumulus-enclosed porcine oocytes and causes a damage in gap junctions (Appeltant et al. 2017 Reprod. Fertil. Dev. 29, 2419-2429). However, the correlation between the two phenomena was not investigated yet. The present research was conducted to clarify whether premature meiotic resumption is caused by gap junction disruption and to assess the importance of cumulus cells for the survival of porcine oocytes vitrified at the GV stage. Cumulus–oocyte complexes (COCs) were collected from 3- to 6-mm antral follicles of slaughtered gilts. Immediately after collection, approximately half of them were denuded mechanically (DOs). In each replicate, groups of COCs and DOs were processed without vitrification (control groups). Treatment groups of COCs and DOs were vitrified on Cryotop sheets in a combination of 17.5% propylene glycol and 17.5% ethylene glycol and warmed in 0.4M sucrose. The oocytes were then cultured for 22h in a chemically defined porcine oocyte medium (POM) supplemented with 10ngmL−1 epidermal growth factor, 10IUmL−1 equine chorionic gonadotrophin, 10IUmL−1 human chorionic gonadotrophin, and 1mM dibutyryl cAMP. After culture, COCs were denuded and oocyte survival was assessed by morphological evaluation of membrane integrity under a stereo microscope. Then, live oocytes were fixed and stained with 1% orcein and nuclear status was evaluated under a phase-contrast microscope. The experiment was replicated 5 times. Data were analysed by ANOVA followed by Tukey’s multiple comparisons test. After vitrification and culture, the survival rate in the COC group was higher (P<0.05) than that of the DO group (160/191=84.7±3.4% vs. 153/237=65.0±6.2%, respectively) but reduced (P<0.05) compared with those in the control COC and DO groups (138/143=96.6±1.0% and 152/153=99.3±0.6%, respectively). The majority of the control COCs and DOs were at the GV stage with similar percentages (95.6±2.2% and 94.0±2.2%, respectively). In contrast, the percentages of oocytes at the GV stage in the vitrified COC and DO groups were reduced (71.6±9.4% and 45.7±10.5%, respectively; P<0.05) compared with the control groups, which were associated with increased frequencies of diakinesis and MI stages. Percentages of oocytes at the GV stage in the vitrified COC and DO groups were not significantly different (P=0.23). In conclusion, cumulus cells can prevent vitrification-related membrane damage of oocytes. Furthermore, vitrification induced premature meiosis both in the cumulus-enclosed and denuded oocytes even in the presence of the meiotic inhibitor, dibutyryl cAMP. Nevertheless, cumulus removal without vitrification did not induce premature meiosis in the oocytes. Therefore, disruption in communication with cumulus cells might not be the primary reason for premature meiosis in vitrified oocytes.
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Robbins SM, Cossette‐Levasseur M, Kikuchi K, Sarjeant J, Shiu Y, Azar C, Hazel EM. Neuromuscular Activation Differences During Gait in Patients With Ehlers‐Danlos Syndrome and Healthy Adults. Arthritis Care Res (Hoboken) 2020; 72:1653-1662. [DOI: 10.1002/acr.24067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 09/03/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Shawn M. Robbins
- McGill University Centre for Interdisciplinary Research in Rehabilitation, and Lethbridge‐Layton‐MacKay Rehabilitation Centre Montreal Quebec Canada
| | | | | | | | | | - Christiane Azar
- Lethbridge‐Layton‐MacKay Rehabilitation Centre Montreal Quebec Canada
| | - Elizabeth M. Hazel
- McGill University Health Centre Montreal General Hospital Montreal Quebec Canada
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Edahiro A, Miyamae F, Taga T, Sugiyama M, Kikuchi K, Okamura T, Awata S. Incidence and distribution of subtypes of early‐onset dementia in Japan: A nationwide analysis based on annual performance reports of the Medical Centers for Dementia. Geriatr Gerontol Int 2020; 20:1050-1055. [DOI: 10.1111/ggi.14043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Ayako Edahiro
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology Tokyo Japan
| | - Fumiko Miyamae
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology Tokyo Japan
| | - Tsutomu Taga
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology Tokyo Japan
| | - Mika Sugiyama
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology Tokyo Japan
| | - Kazunori Kikuchi
- Research Team for Human Care, Tokyo Metropolitan Institute of Gerontology Tokyo Japan
| | - Tsuyoshi Okamura
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology Tokyo Japan
| | - Shuichi Awata
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology Tokyo Japan
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Manna E, Kikuchi K, Chalubert H, Amri I, Medina P. 137P BRAF mutation testing and results among French patients with solid tumours. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Fujita M, Fukuda K, Hayashi S, Kikuchi K, Takashima Y, Kamenaga T, Maeda T, Matsubara T, Kuroda R. AB0089 THE ANALYSIS FOR THE INHIBITION OF ANGIOGENESIS BY JAK INHIBITOR. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Many blood vessels are generated in the hyperplastic synovial tissue of patients with rheumatoid arthritis (RA), and lead to chronic tissue inflammation and joint destruction [1]. Janus kinase (JAK) family consisting of JAK1, JAK2, JAK3 and tyrosine kinase 2 (TYK2) are chain receptors which phosphorylate signal transducers and activators of transcription (STAT) and mediate inflammatory diseases including RA [2]. Nowadays, several JAK inhibitors such as Tofacitinib (TOF), Baricitinib (BAR) and Peficitinib (PEF) have been developed and demonstrated to have the inhibitory effects on inflammatory arthritis [3-5]. However, there were few reports concerning their effects on angiogenesis in vitro.Objectives:The purpose of the present study is to investigate the influence of JAK inhibitors on angiogenesis of human umbilical vein endothelial cell (HUVEC) activated by vascular endothelial growth factor (VEGF).Methods:The cell line of HUVECs were used for this study. The activity of proliferation and tube formation were analyzed by counting assay and tube formation assay, respectively.In counting assay, HUVECs (5 × 104cells/ml) were seeded onto 96-well cell culture plate with 20 ng/ml VEGF including various doses (0.1µM, 1µM, 5µM) of TOF, BAR or PEF. After 48 hours incubation at 37°C in a humidified atmosphere containing 5% CO2, cell proliferation of each groups was assessed using cell counting kit. In tube formation assay, HUVECs (5 × 104cells/ml) were treated with 20ng/ml VEGF including various dose (0.1µM, 1µM, 5µM) of TOF, BAR or PEF for 00 hours, then seeded onto 48-well plate applied with Matrigel. After 24 hours incubation on Matrigel, the capillary-like tube formation of each well was photographed using phase contrast microscopy. Tube formation were quantitated by measurement of the length of branch.Results:HUVECs were activated in proliferation and tube formation by VEGF treatment. And, the proliferation and tube formation of HUVECs activated by VEGF were suppressed by All of TOF, BAR and PEF. In particular, TOF and PEF could suppress them highly.Conclusion:This study showed the inhibitory effect of JAK inhibitors on proliferation and tube formation of HUVECs activated by VEGF. In particular, the angiogenesis of HUVECs activated by VEGF was highly suppressed by TOF and PEF. VEGF is reported to regulate the angiogenesis through multi JAK-STAT signaling pathways [6]. The inhibitory effects on angiogenesis of TOF, BAR and PEF might depend on the differences in their affinity for JAKs. VEGF has been shown to a have a central involvement in the angiogenic process in RA [7]. JAK inhibitors might suppress the angiogenesis in RA synovial tissues by inhibiting VEGF signaling.References:[1]Scott DL, et al. Rheumatoid arthritis. Lancet. 2010.[2]Banerjee S, et al. JAK-STAT signaling as a target for inflammatory and autoimmune diseases: current and future prospects. Drugs. 2017.[3]William D, et al. JAK inhibitors in dermatology: the promise of a new drug class. Journal of the American Academy of Dermatology. 2017.[4]Dhillon S. Tofacitinib: A Review in Rheumatoid Arthritis. Drugs. 2017.[5]Markham A, et al. Peficitinib: First Global Approval. Drugs. 2019.[6]Zhang HY, et al. Three important components in the regeneration of the cavernous nerve: brain-derived neurotrophic factor, vascular endothelial growth factor and the JAK/STAT signaling pathway. Asian journal of andrology. 2011.[7]Paleolog EM. Angiogenesis in rheumatoid arthritis. Arthritis research. 2002.Acknowledgments:noneDisclosure of Interests:None declared
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Takashima Y, Fukuda K, Hayashi S, Kamenaga T, Fujita M, Kikuchi K, Kuroda R, Funahashi K, Matsubara T. SAT0019 HISTOPATHOLOGICAL CHANGES OF SYNOVIAL TISSUE IN RHEUMATOID ARTHRITIS PATIENTS TREATED WITH TNF INHIBITORS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by hyperplasia of synovial tissues [1]. Tumor necrosis factor (TNF)-α is one of the pro-inflammatory cytokines that play a crucial role in the pathogenesis of RA synovitis, and TNF inhibitors (TNFi) were reported to force the RA to go into remission or low disease activity and have brought revolutionary impacts on RA treatment [2]. TNFi have been shown to act on inflammatory cells and form the discoid fibrosis in the sublining layers [3,4]. However, the changes of synovial tissue and the cause of discoid fibrosis in RA patients treated with TNFi has not been determined in detail.Objectives:The purpose of this study is to demonstrate the histological changes and the types of cells around discoid fibrosis in RA synovium treated with TNFi.Methods:Synovial tissues were obtained from 30 patients with RA during joint surgeries. 6 patients were treated with TNFi (1 patient with golimumab, 3 patients with etanercept, 2 patients with infliximab). As a control, synovial tissues were obtained from 6 patients who were treated only with csDMARDs (6 patients with MTX). The frozen sections were stained by hematoxylin and eosin (HE). To detect the apoptosis, TdT-mediated dUTP nick end labeling (TUNEL) was performed. The immunohistochemical characterization of the synovial cells was performed by using following antibodies: CD20 and CD3 for detecting B and T lymphocytes respectively, CD163 and CD86 for detecting M1 and M2 macrophage respectively.Results:In the sections stained with HE, the formation of discoid fibrosis and the other characteristic changes including hydropic degeneration, vacuolation, sclerosis of small vasculature, and the number of multilayered synovial cells was decreased in synovium from RA patients treated with TNFi. In the sections with TUNEL stain, apoptosis of lining cells around the discoid fibrosis was detected in RA synovium treated with TNFi (Figure 1a, 1b). In the sections with immunohistochemistry stain, CD86 expression increased in lining layer of RA synovium treated with TNFi. CD163 positive cells showed diffuse expression in RA synovium treated with TNFi. In contrast, CD20 and CD3 positive cells decreased around discoid fibrosis compared to control sections. These results showed indicated that the types of cells in lining and sublining layers were mainly macrophages and that the apoptosis of macrophages might form the discoid fibrosis in lining layers.Conclusion:This study showed the apoptosis of lining cells derived from macrophages resulted in the formation of the discoid fibrosis. These findings indicated TNFi might induce apoptosis of macrophage leading to the suppression of RA synovitis.References:[1] Scott Dl, et al. Progression of radiological changes in rheumatoid arthritis. Ann Rheum Dis. 1984.[2]van der Heijde D,et al. Comparison of etanercept and methotrexate, alone and combined, in the treatment of rheumatoid arthritis: two-year clinical and radiographic results from the TEMPO study, a double-blind, randomized trial. Arthritis Rheum. 2006.[3] Hirohata S,et al. TNF inhibitors induce discoid fibrosis in the sublining layers of the synovium with degeneration of synoviocytes in rheumatoid arthritis. Rheumatol Int. 2013.[4] Yamanaka H,et al. Scoring evaluation for histopathological features of synovium in patients with rheumatoid arthritis during anti-tumor necrosis factor therapy. Rheumatol Int. 2010.Acknowledgments :This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.Disclosure of Interests:None declared
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Oba A, Ito S, Okada H, Anzai T, Kikuchi K, Ikeda K. Early and noninvasive diagnosis using serological antigen biomarkers in chronic invasive fungal rhinosinusitis. RHINOL 2020. [DOI: 10.4193/rhinol/20.041] [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: 11/08/2022] Open
Abstract
Background: Chronic invasive form of fungal rhinosinusitis (FRS) is characterized by the invasion of fungal organisms into the sinonasal mucosa in the background of diabetes mellitus and corticosteroid treatment. Although the histopathology has traditionally been used to make a proven diagnosis of invasive fungal infections, the dependence on tissue samples and the slow turnaround time hamper the early confirmation of such infections. Methodology: This is a retrospective case series conducted over 6 years. All patients with a chronic course and immunosuppressive background of FRS diagnosed by radiologic imaging and treated with endoscopic sinus surgery were eligible for inclusion. Data were collected through medical records, including basic characteristics, symptoms and signs, imaging findings, laboratory investigations, pathology, treatment, and outcomes. Results: Fifteen patients with chronic course and immunosuppressive background of FRS diagnosed by radiologic imaging were identified. High values of 1,3-b-D-glucan (BDG) assay were recognized in 5 patients, whereas the other 10 patients with negative findings in the BDG assay showed sinus mycetomas. All the 5 patients showing significant elevations of serum BDG showed positive findings in the polymerase chain reaction (PCR), but only 2 patients were positive in the histopathology. The findings of the BDG assay were consistent with those of the PCR method, which was superior in sensitivity to the histopathology. Conclusion: We first applied BDG assay as a diagnostic tool for chronic invasive FRS. The BDG assay may be useful to distinguish chronic invasive FRS, including its early stage, from noninvasive mycetoma, contributing to timely treatment.
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Somfai T, Nguyen HT, Nguyen MT, Dang-Nguyen TQ, Kaneko H, Noguchi J, Kikuchi K. 27 Vitrification at the germinal vesicle stage does not trigger apoptosis in porcine oocytes and early embryos. Reprod Fertil Dev 2020. [DOI: 10.1071/rdv32n2ab27] [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: 11/23/2022] Open
Abstract
Porcine immature oocytes can survive vitrification at high rates and retain their ability to undergo maturation and fertilization; however, the procedure reduces their competence for subsequent embryo development via unknown mechanisms (Somfai et al. 2014 Plos One 9, e97731). The aim of the present study was to clarify whether our vitrification procedure at the germinal vesicle stage triggers apoptosis in oocytes and subsequent developing embryos. Immature porcine cumulus-oocyte complexes obtained from slaughterhouse-derived ovaries were vitrified and warmed by our method (Appeltant et al. 2018 Cryobiology 85, 87-94) immediately after collection (vitrified group). The oocytes were equilibrated in 2% (vol/vol) ethylene glycol and 2% (vol/vol) propylene glycol for 13-15min. Then, they were vitrified by dropping them into liquid nitrogen in 2-μL microdrops of a medium composed of 17.5% ethylene glycol, 17.5% propylene glycol, 0.3M sucrose, and 50mgmL−1 polyvinylpyrrolidone. After warming, they were subjected to IVM, fertilization (IVF), and embryo culture using chemically defined media (Yoshioka et al. 2008 J. Reprod. Dev. 54, 208-213). From each collected batch, a group of oocytes was processed without vitrification (control group). Apoptosis was assayed in membrane-intact oocytes at the end of IVM and in cleavage-stage embryos on Day 2 after IVF (Day 0) by the CaspACE FITC-VAD-FMK In Situ Caspase Marker (Promega; Experiment 1), deoxynucleotidyl transferase (TdT) dUTP nick-end labelling (TUNEL; Experiment 2), and analysis of mRNA levels by RT-qPCR for the pro-apoptotic Bax and CASP3 genes (Experiment 3). Each experiment was replicated three times. Data were analysed by Kruskal-Wallis test followed by Dunn's multiple comparisons test. The mean survival rate of vitrified oocytes was 89.2%. There was no significant difference between the control and vitrified groups in relative caspase levels in IVM oocytes and in 2- to 4-cell embryos after IVF; however, significantly increased caspase activity (P<0.05) was detected in oocytes and embryos after treatment with 10 μM staurosporine (positive control). There was no significant difference between the control and vitrified groups in the proportion of TUNEL-positive oocytes (4.1 and 0.8%, respectively) and embryos (0 and 0%, respectively), whereas 96.6% of oocytes and 100% of cleavage stage embryos treated with 1000IUmL−1 deoxyribonuclease I (positive control) were proven to be TUNEL positive (P<0.05). Similar mRNA levels for Bax and CASP3 genes were detected in oocytes at the end of IVM and subsequent developing 4- to 8-cell embryos between the control and vitrified groups. In conclusion, vitrification of porcine oocytes at the germinal vesicle stage by our method did not trigger apoptosis in oocytes and subsequent developing embryos.
This work was supported by the Japan Science and Technology Agency (JST)/Japan International Cooperation Agency (JICA) Science and Technology Research Partnership for Sustainable Development (SATREPS).
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Miyagawa Y, Kikuchi K, Tsuchiya M, Adachi S. A statistical model for activation of Factor C by binding to LPS aggregates. Eur Biophys J 2019; 48:743-747. [PMID: 31630219 DOI: 10.1007/s00249-019-01400-4] [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] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Published data on Factor C activity at various LPS and Lipid A concentrations (Nakamura et al. in Eur J Biochem 176:89, 1988; Kobayashi et al. in J Biol Chem 37:25987, 2014) were rearranged to show that Factor C exhibited its maximum activity at a specific concentration of LPS. A statistical model was proposed for examining whether a single LPS molecule binding activates Factor C (monomeric activation) or dimerization of Factor C is necessary for the activation (dimeric activation). In the monomeric activation model the plots of the relative activity of Factor C against the molar ratio of LPS to Factor C were different from those in the published data. The plots in the dimeric activation model lie on a bell-shaped curve, whatever the Factor C concentration, matching the published data and indicating the appropriateness of that model. We suggest that Factor C is activated by multiple molecular interactions of Factor C with LPS aggregates on which it dimerises and that this explains why larger aggregates are less effective at activating Factor C than smaller ones.
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Affiliation(s)
- Y Miyagawa
- Faculty of Bioenvironmental Science, Kyoto Gakuen University, 1-1 Nanjo-Ohtani, Sogabe-cho, Kameoka, Kyoto, 621-8555, Japan
| | - K Kikuchi
- Faculty of Liberal Studies, National Institute of Technology Kumamoto College, 2659-2 Suya, Koshi, Kumamoto, 861-1102, Japan
| | - M Tsuchiya
- Microbial Solutions, Charles River, 1023 Wappoo Road, Suite 43B, Charleston, SC, 29407, USA
| | - S Adachi
- Faculty of Bioenvironmental Science, Kyoto Gakuen University, 1-1 Nanjo-Ohtani, Sogabe-cho, Kameoka, Kyoto, 621-8555, Japan.
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Miyamoto R, Kikuchi K, Uchida A, Ozawa M, Maeda M, Sano N, Tadano S, Inagawa S, Oda T, Ohkohchi N. Complete pathological response after preoperative chemotherapy for locally advanced rectal cancer: a case report. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz343.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yamazaki N, Kikuchi K, Nozawa K, Fukuda H, Shibata T, Hamaguchi T, Takashima A, Shoji H, Boku N, Takatsuka S, Takenouchi T, Nishina T, Hino K, Yoshikawa S, Yamazaki K, Takahashi M, Hasegawa A, Bando H, Masuishi T, Kiyohara Y. Primary analysis results of randomized controlled trial evaluating reactive topical corticosteroid strategies for the facial acneiform rash by EGFR inhibitors (EGFRIs) in patients (pts) with RAS wild-type (wt) metastatic colorectal cancer (mCRC): FAEISS study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz394.090] [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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Miyamoto R, Kikuchi K, Uchida A, Ozawa M, Sano N, Tadano S, Inagawa S, Oda T, Ohkohchi N. Pathological complete response after preoperative chemotherapy including FOLFOX plus bevacizumab for locally advanced rectal cancer: A case report and literature review. Int J Surg Case Rep 2019; 62:85-88. [PMID: 31476559 PMCID: PMC6726879 DOI: 10.1016/j.ijscr.2019.08.010] [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] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/01/2019] [Accepted: 08/06/2019] [Indexed: 12/18/2022] Open
Abstract
Preoperative chemotherapy alone for locally advanced rectal cancer remain unclear. Neoadjuvant chemotherapy was a promising treatment for unresectable rectal cancer. Earlier preoperative systemic chemotherapy was assumed to prevent the dissemination.
Background In Japan, the significance and efficacy of preoperative chemotherapy alone for locally advanced rectal cancer remain controversial. This case report presents the apparent effectiveness of preoperative FOLFOX plus bevacizumab as shown by pathological complete response (pCR). Additionally, we review the relevant literature and discuss the clinical management of locally advanced rectal cancer with preoperative chemotherapy. Case presentation A 59-year-old male presented with severe constipation, bloody stool and a loss of 10% of his body weight over 3 months. Preoperative examination revealed locally advanced rectal cancer with extensive invasion of the bladder wall and enlarged regional lymph nodes. Thus, this lesion was assigned a preoperative classification of T4bN2bM0 stage IIIC according to the 8th Union for International Cancer Control (UICC) guidelines. Therefore, the patient initially underwent an external loop colostomy of the transverse colon. Next, the patient received chemotherapy including FOLFOX plus bevacizumab. After 12 cycles of chemotherapy, the tumor size was markedly decreased, and all lymph node metastases had disappeared. Therefore, the patient underwent conventional resection of the rectum with D3 lymph node dissection and closure of the colostomy. Histopathological analysis of the resected specimen revealed that all lesions were fibrotic and devoid of any viable cancer cells. Thus, this lesion was assigned a final classification of ypT0N0M0 stage 0. Conclusions We present the rare case of a patient with surgically resected locally advanced rectal cancer who demonstrated an impressive pCR with preoperative chemotherapy, which included FOLFOX plus bevacizumab.
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Affiliation(s)
- Ryoichi Miyamoto
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba, Ibaraki 305-8558, Japan; Department of Surgery, Division of Gastroenterological and Hepatobiliary Surgery and Organ Transplantation, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.
| | - Kazunori Kikuchi
- Department of Pathology, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba, Ibaraki 305-8558, Japan
| | - Atsushi Uchida
- Department of Pathology, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba, Ibaraki 305-8558, Japan
| | - Masayoshi Ozawa
- Department of Pathology, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba, Ibaraki 305-8558, Japan
| | - Naoki Sano
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba, Ibaraki 305-8558, Japan
| | - Sosuke Tadano
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba, Ibaraki 305-8558, Japan
| | - Satoshi Inagawa
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, 1-3-1 Amakubo, Tsukuba, Ibaraki 305-8558, Japan
| | - Tatsuya Oda
- Department of Surgery, Division of Gastroenterological and Hepatobiliary Surgery and Organ Transplantation, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Nobuhiro Ohkohchi
- Department of Surgery, Division of Gastroenterological and Hepatobiliary Surgery and Organ Transplantation, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Yamashita K, Hiwatashi A, Togao O, Kikuchi K, Momosaka D, Hata N, Akagi Y, Suzuki SO, Iwaki T, Iihara K, Honda H. Differences between primary central nervous system lymphoma and glioblastoma: topographic analysis using voxel-based morphometry. Clin Radiol 2019; 74:816.e1-816.e8. [PMID: 31400805 DOI: 10.1016/j.crad.2019.06.017] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 06/26/2019] [Indexed: 12/27/2022]
Abstract
AIM To evaluate the diagnostic feasibility of probabilistic analysis using voxel-based morphometry (VBM) in differentiating primary central nervous system lymphoma (PCNSL) from glioblastoma (GBM). MATERIALS AND METHODS In total, 118 patients with GBM (57 males, 61 females; mean [± standard deviation] age, 56.9±19.3 years; median, 61 years) and 52 patients with PCNSL (37 males, 15 females; mean age, 62±13.3 years, median, 66 years) were studied retrospectively. Each patient underwent preoperative contrast-enhanced T1-weighted imaging (CE-T1WI) using a 1.5 or 3 T magnetic resonance imaging (MRI) system. To assess preferential occurrence sites, images from CE-T1WI were co-registered and spatially normalised using the MNI152 T1 template. Subsequently, a region of interest (ROI) was placed in the centre of the enhancing tumour in normalised images with 1-mm isotropic resolution. The same ROI between normalised and T1 template images was set up using an ROI manager function in ImageJ software. A spherical volume of interest (VOI) with a radius of 10 mm was determined. A probability map was created by overlaying each image with the VOI. Each VOI was removed from T1 template images for VBM analysis. VBM analysis was performed using statistical parametric mapping (SPM) 12 software under default settings. RESULTS VBM analysis showed significantly higher frequency in the splenium of the corpus callosum among PCNSL patients than among GBM patients (p<0.05; family-wise error correction). CONCLUSION Topographic analysis using VBM provides useful information for differentiating PCNSL from GBM.
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Affiliation(s)
- K Yamashita
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan.
| | - A Hiwatashi
- Department of Molecular Imaging and Diagnosis, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - O Togao
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - K Kikuchi
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - D Momosaka
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - N Hata
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - Y Akagi
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - S O Suzuki
- Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - T Iwaki
- Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - K Iihara
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
| | - H Honda
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582 Japan
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Kikuchi K, Ijuin M, Awata S, Suzuki T. Exploratory research on outcomes for individuals missing through dementia wandering in Japan. Geriatr Gerontol Int 2019; 19:902-906. [PMID: 31359572 DOI: 10.1111/ggi.13738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 04/22/2019] [Accepted: 06/23/2019] [Indexed: 12/01/2022]
Abstract
AIM To clarify the factors related to outcomes of individuals missing through dementia wandering. METHODS We carried out binary logistic regression analysis with 160 family members of missing persons (88 survivors, 72 decedents). RESULTS Living alone at the point of going missing (OR 13.45, 95% CI 1.12-161.56), being found within the local area (OR 6.36, 95% CI 2.26-17.88), and a long period between going missing and being found (OR 6.14, 95% CI 3.14-12.00) were significantly related with death. CONCLUSIONS Early detection of missing persons is essential in preventing dementia wandering-related deaths. The time taken to locate missing dementia patients who lived alone was longer, relative to that of those who lived with others, and this increased the risk of death. Furthermore, the locations where the deceased were located tended to be local, rather than distant areas. Geriatr Gerontol Int 2019; 19: 902-906.
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Affiliation(s)
- Kazunori Kikuchi
- Research Team for Human Care, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Mutsuo Ijuin
- Department of Communication Sciences and Disorders, Faculty of Health and Welfare, Prefectural University of Hiroshima, Hiroshima, Japan.,Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Shuichi Awata
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Takao Suzuki
- Institute of Gerontology, J. F. Oberlin University, Tokyo, Japan
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Yamashita K, Hatae R, Hiwatashi A, Togao O, Kikuchi K, Momosaka D, Yamashita Y, Kuga D, Hata N, Yoshimoto K, Suzuki S, Iwaki T, Iihara K, Honda H. Predicting TERT promoter mutation using MR images in patients with wild-type IDH1 glioblastoma. Diagn Interv Imaging 2019; 100:411-419. [DOI: 10.1016/j.diii.2019.02.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/19/2019] [Accepted: 02/21/2019] [Indexed: 01/04/2023]
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Kikuchi K, Hiwatashi A, Togao O, Yamashita K, Kamei R, Momosaka D, Hata N, Iihara K, Suzuki SO, Iwaki T, Honda H. Intravoxel Incoherent Motion MR Imaging of Pediatric Intracranial Tumors: Correlation with Histology and Diagnostic Utility. AJNR Am J Neuroradiol 2019; 40:878-884. [PMID: 31023663 DOI: 10.3174/ajnr.a6052] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/27/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND PURPOSE Intravoxel incoherent motion imaging, which simultaneously measures diffusion and perfusion parameters, is promising for brain tumor grading. However, intravoxel incoherent motion imaging has not been tested in children. The purpose of this study was to evaluate the correlation between intravoxel incoherent motion parameters and histology to assess the accuracy of intravoxel incoherent motion imaging for pediatric intracranial tumor grading. MATERIALS AND METHODS Between April 2013 and September 2015, 17 children (11 boys, 6 girls; 2 months to 15 years of age) with intracranial tumors were included in this retrospective study. Intravoxel incoherent motion parameters were fitted using 13 b-values for a biexponential model. The perfusion-free diffusion coefficient, pseudodiffusion coefficient, and perfusion fraction were measured in high- and low-grade tumors. These intravoxel incoherent motion parameters and the ADC were compared using the unpaired t test. The correlations between the intravoxel incoherent motion parameters and microvessel density or the MIB-1 index were analyzed using the Spearman correlation test. Receiver operating characteristic analysis was used to evaluate diagnostic performance. RESULTS The perfusion-free diffusion coefficient and ADC were lower in high-grade than in low-grade tumors (perfusion-free diffusion coefficient, 0.85 ± 0.40 versus 1.53 ± 0.21 × 10-3 mm2/s, P < .001; ADC, 1.04 ± 0.33 versus 1.60 ± 0.21 × 10-3 mm2/s, P < .001). The pseudodiffusion coefficient showed no difference between the groups. The perfusion fraction was higher in high-grade than in low-grade tumors (21.7 ± 8.2% versus 7.6 ± 4.3%, P < .001). Receiver operating characteristic analysis found that the combined perfusion-free diffusion coefficient and perfusion fraction had the best diagnostic performance for tumor differentiation (area under the curve = 0.986). CONCLUSIONS Intravoxel incoherent motion imaging reflects tumor histology and may be a helpful, noninvasive method for pediatric intracranial tumor grading.
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Affiliation(s)
- K Kikuchi
- From the Departments of Clinical Radiology (K.K., A.H., O.T., K.Y., R.K., D.M., H.H.)
| | - A Hiwatashi
- From the Departments of Clinical Radiology (K.K., A.H., O.T., K.Y., R.K., D.M., H.H.)
| | - O Togao
- From the Departments of Clinical Radiology (K.K., A.H., O.T., K.Y., R.K., D.M., H.H.)
| | - K Yamashita
- From the Departments of Clinical Radiology (K.K., A.H., O.T., K.Y., R.K., D.M., H.H.)
| | - R Kamei
- From the Departments of Clinical Radiology (K.K., A.H., O.T., K.Y., R.K., D.M., H.H.)
| | - D Momosaka
- From the Departments of Clinical Radiology (K.K., A.H., O.T., K.Y., R.K., D.M., H.H.)
| | - N Hata
- Neurosurgery (N.H., K.I.)
| | | | - S O Suzuki
- Neuropathology (S.O.S., T.I.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Iwaki
- Neuropathology (S.O.S., T.I.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Honda
- From the Departments of Clinical Radiology (K.K., A.H., O.T., K.Y., R.K., D.M., H.H.)
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Kenji M, Hamamoto Y, Urashima Y, Takata N, Kikuchi K, Miyagawa M, Mochizuki T. PO-0709 External beam radiotherapy for metastatic lesions of differentiated thyroid cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31129-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Somfai T, Nguyen HT, Men NT, Dang-Nguyen TQ, Kaneko H, Noguchi J, Nagai T, Kikuchi K. 36 The effects of E-64 on the developmental competence of porcine oocytes vitrified at the germinal vesicle stage. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab36] [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: 11/23/2022] Open
Abstract
Previous studies reported the activation of the apoptotic cascade by vitrification in mature porcine oocytes (Vallorani et al. 2012 Anim. Reprod. Sci. 135, 68-74) and that the cathepsin B inhibitor E-64 improved developmental competence of bovine oocytes via an antiapoptotic effect (Balboula et al. 2013 Reproduction 146, 407-417). The present study was carried out to test whether E-64 affected the developmental competency of porcine oocytes vitrified at the germinal vesicle stage. Cumulus-enclosed porcine oocytes were vitrified in microdrops and warmed by our method (Somfai et al. 2015 J. Reprod. Dev. 61, 571-579). Then, the oocytes were subjected to in vitro maturation (IVM) for 46h in a chemically defined porcine oocyte medium supplemented with 10ng mL−1 of epidermal growth factor, 10IU mL−1 of eCG, and 10IU mL−1 of hCG and during the first 22h of IVM with 1mM dibutyryl cyclic adenosine monophosphate. Then, cumulus-oocyte complexes were fertilized in vitro and presumptive zygotes were cultured in 50-µL drops of porcine zygote medium-3 for 7 days in 6-well dishes covered by paraffin oil in an atmosphere of 5% CO2, 5% O2, and 90% N2 at 39°C. On Day 5 (Day 0=IVF), the porcine zygote medium-3 was supplemented with 10% (vol/vol) FCS. The effects of 1.0μM of E-64 supplementation during IVM of non-vitrified and vitrified cumulus-oocyte complexes were investigated in a 2×2 factorial design. Survival rates after IVM, cleavage rates on Day 2, blastocyst rates, and total cell numbers in blastocysts on Day 7 were compared among groups. The experiment was replicated 5 times. Results were analysed by ANOVA and Tukey’s multiple comparison test. The percentages of live oocytes were statistically similar when oocytes were matured in the absence or presence of E-64 both in non-vitrified (99.2% v. 99.6%, respectively) and vitrified (94.3% v. 90.8%, respectively) groups. Similarly, IVM without or with E-64 supplementation had no effect on subsequent cleavage and blastocyst development rates in non-vitrified (67.4% v. 71.2% and 38.7% v. 43.2%, respectively) and vitrified (46.8% v. 48.8% and 14.6% v. 22.8%, respectively) oocytes. Irrespective of E-64 treatment, all survival and developmental rates in the vitrified groups were significantly lower (P<0.05) compared with those of their non-vitrified counterparts except for the blastocyst development rate in the E-64-treated vitrified group, which did not differ significantly from those of the non-vitrified groups with or without E-64 treatment. There was no statistical difference in mean blastocyst cell numbers among the groups, ranging between 86.5±15.8 and 118±10.6. In conclusion, E-64 treatment had no effect on embryo production rates, which suggests that in our system, cathepsin-mediated apoptosis during IVM might not be the factor to limit embryo production using either fresh oocytes or those vitrified at the immature stage.
This work was supported by JST/JICA SATREPS.
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Uchida A, Ozawa M, Ueda Y, Murai Y, Nishimura Y, Ishimatsu H, Okouchi Y, Ishiguro K, Hamada Y, Sasamoto R, Watanabe M, Sano N, Miyamoto R, Inagawa S, Kikuchi K. Gastric adenocarcinoma of fundic gland mucosa type localized in the submucosa: A case report. Medicine (Baltimore) 2018; 97:e12341. [PMID: 30212986 PMCID: PMC6156021 DOI: 10.1097/md.0000000000012341] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
RATIONALE Gastric adenocarcinoma of fundic gland type (GA-FG) is a new histological type of gastric cancer manifesting with differentiation into a fundic gland. Furthermore, gastric adenocarcinoma of fundic gland mucosa type (GA-FGM) is a tumor that shows differentiation into not only a fundic gland but also foveolar epithelium and a mucous gland. These tumors tend to invade the submucosal layer. However, no cases of these tumors being localized only in the submucosa have been reported. Here, we present a case of GA-FGM localized in the submucosa and describe the cytological features of this tumor. To our knowledge, this is the first reported case of GA-FGM localized in the submucosa. PATIENT CONCERNS A man in his early 70s was referred to our institution because of the detection of a gastric submucosal tumor during a health checkup. DIAGNOSES Gastric adenocarcinoma of fundic gland mucosa type. INTERVENTIONS Endoscopic ultrasound-guided fine-needle aspiration (FNA), endoscopic submucosal dissection (ESD), and total gastrectomy with lymph node dissection were performed. OUTCOMES The FNA specimen showed epithelial cells with low-grade atypia. In the ESD specimen, adenocarcinoma showing a gastric fundic gland mucosa-like morphology was observed. Immunohistochemical analysis showed positive staining for pepsinogen I, H+/K+-adenosine triphosphatase, MUC6, and MUC5AC and negative staining for MUC2 and CD10, indicating tumor differentiation into fundic gland mucosa. Therefore, the tumor was diagnosed as GA-FGM, with localization in the submucosal layer. Total gastrectomy and lymph node dissection were performed because of the positive margins of the ESD specimen. Neither residual tumor nor lymph node metastasis was detected; however, many foci of heterotopic gastric glands (HGGs) were observed in the gastric wall, suggesting that GA-FGM arose from an HGG. After treatment, no recurrence was observed during a 1-year follow-up period. LESSONS Various tumors may arise from HGGs. Furthermore, when an FNA specimen shows gastric fundic gland mucosa-like epithelial cells with weak atypia, the possibility of GA-FG and GA-FGM should be considered.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Naoki Sano
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Ibaraki, Japan
| | - Ryoichi Miyamoto
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Ibaraki, Japan
| | - Satoshi Inagawa
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Ibaraki, Japan
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Hiwatashi A, Togao O, Yamashita K, Kikuchi K, Momosaka D, Honda H. Diffusion-weighted magnetic resonance imaging of extraocular muscles in patients with Grave's ophthalmopathy using turbo field echo with diffusion-sensitized driven-equilibrium preparation. Diagn Interv Imaging 2018; 99:457-463. [DOI: 10.1016/j.diii.2018.02.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/24/2018] [Accepted: 02/26/2018] [Indexed: 12/26/2022]
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Togao O, Hiwatashi A, Wada T, Yamashita K, Kikuchi K, Tokunaga C, Keupp J, Yoneyama M, Honda H. A Qualitative and Quantitative Correlation Study of Lumbar Intervertebral Disc Degeneration Using Glycosaminoglycan Chemical Exchange Saturation Transfer, Pfirrmann Grade, and T1-ρ. AJNR Am J Neuroradiol 2018; 39:1369-1375. [PMID: 29748204 DOI: 10.3174/ajnr.a5657] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 03/09/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Glycosaminoglycan chemical exchange saturation transfer (gagCEST) imaging allows the direct measurement and mapping of glycosaminoglycans. In this study, we aimed to evaluate the usefulness of gagCEST imaging in the quantitative assessment of intervertebral disc degeneration in a comparison with Pfirrmann grade and T1-ρ measurements. MATERIALS AND METHODS Ninety-six lumbar intervertebral discs in 24 volunteers (36.0 ± 8.5 years of age, 21 men and 3 women) were examined with both gagCEST imaging and T1-ρ measurements. The gagCEST imaging was performed at 3T with a saturation pulse with 1.0-second duration and the B1 amplitude of 0.8 μT followed by imaging by a 2D fast spin-echo sequence. The Z-spectra were obtained at 25 frequency offsets from -3 to +3 ppm (step, 0.25 ppm). A point-by-point B0 correction was performed with a B0 map. The gagCEST signal and T1-ρ values were measured in the nucleus pulposus in each intervertebral disc. The Pfirrmann grades were assessed on T2-weighted images. RESULTS The gagCEST signal at grade I (5.36% ± 2.79%) was significantly higher than those at Pfirrmann grade II (3.15% ± 1.40%, P = .0006), grade III (0.14% ± 1.03%, P < .0001), grade IV (-1.75% ± 2.82%, P < .0001), and grade V (-1.47% ± 0.36%, P < .0001). The gagCEST signal at grade II was significantly higher than those of grade III (P < .0001), grade IV (P < .0001), and grade V (P < .0001). The gagCEST signal was significantly correlated negatively with Pfirrmann grade (P < .0001) and positively correlated with T1-ρ (P < .0001). CONCLUSIONS GagCEST imaging could be a reliable and quantitative technique for assessing intervertebral disc degeneration.
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Affiliation(s)
- O Togao
- From the Department of Clinical Radiology (O.T., A.H., K.Y., K.K., H.H.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Hiwatashi
- From the Department of Clinical Radiology (O.T., A.H., K.Y., K.K., H.H.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Wada
- Division of Radiology (T.W., C.T.), Department of Medical Technology, Kyushu University Hospital, Fukuoka, Japan
| | - K Yamashita
- From the Department of Clinical Radiology (O.T., A.H., K.Y., K.K., H.H.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Kikuchi
- From the Department of Clinical Radiology (O.T., A.H., K.Y., K.K., H.H.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - C Tokunaga
- Division of Radiology (T.W., C.T.), Department of Medical Technology, Kyushu University Hospital, Fukuoka, Japan
| | - J Keupp
- Philips Research (J.K.), Hamburg, Germany
| | | | - H Honda
- From the Department of Clinical Radiology (O.T., A.H., K.Y., K.K., H.H.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Tsedendorj O, Chinuki Y, Ueda K, Yamasaki K, Kikuchi K, Ito Y, Aiba S, Morita E. 249 Different prevalence of sensitization against galactose--1,3-galactose between Shimane and Miyagi in Japan. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ariga H, Kikuchi K, Iwaya T, Oikawa H, Kakuhara H, Segawa T, Yamaguchi S, Nakamura R. PO-0776: Induction chemotherapy with TPF followed by chemoradiotherapy for esophageal squamous cell carcinoma. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31086-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Kikuchi K, Nakamura R, Segawa T, Kakuhara H, Oikawa H, Ariga H. PO-0831: Modified Glasgow prognostic score can predict survival in elderly patients with bladder cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31141-1] [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: 10/14/2022]
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40
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Ishihara S, Arakawa A, Taniguchi M, Luu QM, Pham DL, Nguyen BV, Mikawa S, Kikuchi K. Genetic relationships among Vietnamese local pigs investigated using genome‐wide
SNP
markers. Anim Genet 2018; 49:86-89. [DOI: 10.1111/age.12633] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2017] [Indexed: 11/30/2022]
Affiliation(s)
- S. Ishihara
- Institute of Agrobiological Sciences National Agriculture and Food Research Organization Tsukuba Ibaraki 305‐8572 Japan
| | - A. Arakawa
- Institute of Livestock and Grassland Science National Agriculture and Food Research Organization Tsukuba Ibaraki 305‐0901 Japan
| | - M. Taniguchi
- Institute of Livestock and Grassland Science National Agriculture and Food Research Organization Tsukuba Ibaraki 305‐0901 Japan
| | - Q. M. Luu
- Key Laboratory of Animal Cell Technology National Institute of Animal Sciences Hanoi Vietnam
| | - D. L. Pham
- Key Laboratory of Animal Cell Technology National Institute of Animal Sciences Hanoi Vietnam
| | - B. V. Nguyen
- Key Laboratory of Animal Cell Technology National Institute of Animal Sciences Hanoi Vietnam
| | - S. Mikawa
- Institute of Livestock and Grassland Science National Agriculture and Food Research Organization Tsukuba Ibaraki 305‐0901 Japan
| | - K. Kikuchi
- Institute of Agrobiological Sciences National Agriculture and Food Research Organization Tsukuba Ibaraki 305‐8572 Japan
- United Graduate School of Veterinary Science Yamaguchi University Yamaguchi 753‐8515 Japan
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41
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Miyamoto R, Kikuchi K, Uchida A, Ozawa M, Kemmochi A, Sano N, Tadano S, Inagawa S, Adachi S, Yamamoto M. Collision tumor consisting of a colorectal adenocarcinoma and dissemination of a gastric adenocarcinoma. SAGE Open Med Case Rep 2018; 6:2050313X17751839. [PMID: 29326826 PMCID: PMC5758956 DOI: 10.1177/2050313x17751839] [Citation(s) in RCA: 5] [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: 06/21/2017] [Accepted: 12/12/2017] [Indexed: 01/16/2023] Open
Abstract
Background: Collision tumors, composed of histologically distinct tumor types, are rare entities, especially in the colorectum, and corresponding evidence-based clinical management or treatment strategies are poorly defined. This is the first report of a collision tumor composed of two histologically distinct adenocarcinomas. Case presentation: A 78-year-old male showed severe anemia and a 10% body weight loss over 1 month. Preoperative examination revealed T3N1M0 stage IIIA gastric cancer and T3N0M0 stage IIA rectal cancer. Distal gastrectomy and rectectomy with regional lymph node dissection were performed. Immunohistochemistry revealed two distinct adenocarcinomas with gland duct structures – a colorectal adenocarcinoma and a disseminated gastric adenocarcinoma – that had collided to form an invasive tumor on the serosal surface of the anterior rectum wall. Conclusion: This extremely rare case of a collision tumor supports that precise immunohistochemical identification of all tumor components is needed for guiding decisions affecting overall prognosis, adjuvant treatment and survival.
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Affiliation(s)
- Ryoichi Miyamoto
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Kazunori Kikuchi
- Department of Pathology, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Atsushi Uchida
- Department of Pathology, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Masayoshi Ozawa
- Department of Pathology, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Akira Kemmochi
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Naoki Sano
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Sosuke Tadano
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Satoshi Inagawa
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Shinya Adachi
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Japan
| | - Masayoshi Yamamoto
- Department of Gastroenterological Surgery, Tsukuba Medical Center Hospital, Tsukuba, Japan
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42
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Satoh T, Sugiura S, Shin K, Onuki-Nagasaki R, Ishida S, Kikuchi K, Kakiki M, Kanamori T. A multi-throughput multi-organ-on-a-chip system on a plate formatted pneumatic pressure-driven medium circulation platform. Lab Chip 2017; 18:115-125. [PMID: 29184959 DOI: 10.1039/c7lc00952f] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This paper reports a multi-throughput multi-organ-on-a-chip system formed on a pneumatic pressure-driven medium circulation platform with a microplate-sized format as a novel type of microphysiological system. The pneumatic pressure-driven platform enabled parallelized multi-organ experiments (i.e. simultaneous operation of multiple multi-organ culture units) and pipette-friendly liquid handling for various conventional cell culture experiments, including cell seeding, medium change, live/dead staining, cell growth analysis, gene expression analysis of collected cells, and liquid chromatography-mass spectrometry analysis of chemical compounds in the culture medium. An eight-throughput two-organ system and a four-throughput four-organ system were constructed on a common platform, with different microfluidic plates. The two-organ system, composed of liver and cancer models, was used to demonstrate the effect of an anticancer prodrug, capecitabine (CAP), whose metabolite 5-fluorouracil (5-FU) after metabolism by HepaRG hepatic cells inhibited the proliferation of HCT-116 cancer cells. The four-organ system, composed of intestine, liver, cancer, and connective tissue models, was used to demonstrate evaluation of the effects of 5-FU and two prodrugs of 5-FU (CAP and tegafur) on multiple organ models, including cancer and connective tissue.
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Affiliation(s)
- T Satoh
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan.
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Santos ECS, Appeltant R, Dang-Nguyen TQ, Noguchi J, Kaneko H, Kikuchi K, Somfai T. The effect of resveratrol on the developmental competence of porcine oocytes vitrified at germinal vesicle stage. Reprod Domest Anim 2017; 53:304-312. [DOI: 10.1111/rda.13105] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 09/26/2017] [Indexed: 11/29/2022]
Affiliation(s)
- ECS Santos
- Institute of Livestock and Glassland Science; National Agriculture and Food Research Organization (NARO); Tsukuba Ibaraki Japan
| | - R Appeltant
- Division of Animal Sciences; Institute of Agrobiological Sciences; National Agriculture and Food Research Organization (NARO); Tsukuba Ibaraki Japan
| | - TQ Dang-Nguyen
- Division of Animal Sciences; Institute of Agrobiological Sciences; National Agriculture and Food Research Organization (NARO); Tsukuba Ibaraki Japan
| | - J Noguchi
- Division of Animal Sciences; Institute of Agrobiological Sciences; National Agriculture and Food Research Organization (NARO); Tsukuba Ibaraki Japan
| | - H Kaneko
- Division of Animal Sciences; Institute of Agrobiological Sciences; National Agriculture and Food Research Organization (NARO); Tsukuba Ibaraki Japan
| | - K Kikuchi
- Division of Animal Sciences; Institute of Agrobiological Sciences; National Agriculture and Food Research Organization (NARO); Tsukuba Ibaraki Japan
| | - T Somfai
- Institute of Livestock and Glassland Science; National Agriculture and Food Research Organization (NARO); Tsukuba Ibaraki Japan
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44
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Niimi Y, Ito S, Murate K, Hirota S, Hikichi C, Ishikawa T, Maeda T, Nagao R, Kikuchi K, Shima S, Mizutani Y, Ueda A, Mutoh T. Combinatory use of 123I-FP-CIT-SPECT and cardiac 123I-metaiodobenzylguanidine scintigraphy for the diagnosis of parkinsonisms. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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45
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Ito S, Kikuchi K, Nagao R, Maeda T, Murate K, HIrota S, Hikichi C, Ishikawa T, Shima S, Mizutani Y, Niimi Y, Ueda A, Mutoh T. The serial D-dimer measurements predicts the prognoses of Trousseau’s syndrome patients. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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46
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Kikuchi K, Kidana K, Tatebe T, Tomita T. Dysregulated Metabolism of the Amyloid‐β Protein and Therapeutic Approaches in Alzheimer Disease. J Cell Biochem 2017; 118:4183-4190. [DOI: 10.1002/jcb.26129] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 05/08/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Kazunori Kikuchi
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical SciencesThe University of TokyoTokyoJapan
| | - Kiwami Kidana
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical SciencesThe University of TokyoTokyoJapan
| | - Takuya Tatebe
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical SciencesThe University of TokyoTokyoJapan
| | - Taisuke Tomita
- Laboratory of Neuropathology and Neuroscience, Graduate School of Pharmaceutical SciencesThe University of TokyoTokyoJapan
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47
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Kikuchi K, Asano M, Tagami H, Kato M, Aiba S. Comparison of the measuring efficacy of transepidermal water loss of a reasonably priced, portable closed-chamber system device H4500 with that of rather expensive, conventional devices such as Tewameter®
and Vapometer®. Skin Res Technol 2017; 23:597-601. [DOI: 10.1111/srt.12377] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2017] [Indexed: 11/29/2022]
Affiliation(s)
- K. Kikuchi
- Department of Dermatology; Tohoku University Graduate School of Medicine; Sendai Japan
| | - M. Asano
- Department of Dermatology; Tohoku University Graduate School of Medicine; Sendai Japan
| | | | - M. Kato
- Nikkiso-Therm Co. Ltd.; Tokyo Japan
| | - S. Aiba
- Department of Dermatology; Tohoku University Graduate School of Medicine; Sendai Japan
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48
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Kawai M, Akino N, Ebisawa N, Grisham L, Hanada M, Honda A, Inoue T, Kazawa M, Kikuchi K, Kuriyama M, Kusanagi N, Mogaki K, Noto K, Ohga T, Ooshima K, Tanai Y, Umeda N, Usui K, Yamamoto T, Yamazaki H, Watanabe K. Progress of Negative Ion Source Improvement in N-NBI for JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst03-a387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Kawai
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - N. Akino
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - N. Ebisawa
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - L. Grisham
- Princeton Plasma Physics Laboratory, Princeton, NJ, 08543, U.S.A
| | - M. Hanada
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - A. Honda
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - T. Inoue
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - M. Kazawa
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Kikuchi
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - M. Kuriyama
- Vienna Office, Japan Atomic Energy Research Institute, Baumannstrasse 4-2-13, A1030, Wien, Austria 81-29-270-7453
| | - N. Kusanagi
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Mogaki
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Noto
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - T. Ohga
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Ooshima
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - Y. Tanai
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - N. Umeda
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Usui
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - T. Yamamoto
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - H. Yamazaki
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
| | - K. Watanabe
- Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Ibaraki-ken, 311-0193, Japan
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49
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Tsujimoto K, Oigawa H, Kikuchi K, Kurata Y, Mizumoto M, Sasa T, Saito S, Nishihara K, Umeno M, Takei H. Feasibility of Lead-Bismuth-Cooled Accelerator-Driven System for Minor-Actinide Transmutation. NUCL TECHNOL 2017. [DOI: 10.13182/nt08-a3929] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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]
Affiliation(s)
- K. Tsujimoto
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - H. Oigawa
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - K. Kikuchi
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - Y. Kurata
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - M. Mizumoto
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - T. Sasa
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - S. Saito
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - K. Nishihara
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - M. Umeno
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
| | - H. Takei
- Japan Atomic Energy Agency, Tokai-mura, Ibaraki-ken 319-1195, Japan
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50
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Tsuzuki K, Kimura H, Kusama Y, Sato M, Kawashima H, Kamiya K, Shinohara K, Ogawa H, Uehara K, Kurita G, Kasai S, Hoshino K, Isei N, Miura Y, Yamamoto M, Kikuchi K, Shibata T, Bakhtiari M, Hino T, Hirohata Y, Yamauchi Y, Yamaguchi K, Tsutsui H, Shimada R, Amemiya H, Nagashima Y, Ido T, Hamada Y. Characteristics of Plasma Operation with the Ferritic inside Wall and Its Compatibility with High-Performance Plasmas in JFT-2M. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Tsuzuki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - H. Kimura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - H. Kawashima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Kamiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Shinohara
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - H. Ogawa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Uehara
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - G. Kurita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - S. Kasai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Hoshino
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - N. Isei
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - M. Yamamoto
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - K. Kikuchi
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - T. Shibata
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-shi, Inaraki 319-0193, Japan
| | - M. Bakhtiari
- University of Wisconsin, Madison, Wisconsin 53706
| | - T. Hino
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - Y. Hirohata
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - Y. Yamauchi
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - K. Yamaguchi
- Hokkaido University Sapporo, Hokkaido 060-8628, Japan
| | - H. Tsutsui
- Tokyo Institute of Technology, Meguro-ku Tokyo 152-8550, Japan
| | - R. Shimada
- Tokyo Institute of Technology, Meguro-ku Tokyo 152-8550, Japan
| | - H. Amemiya
- The Institute of Physical and Chemical Research, Wako, Saitama 351-0198, Japan
| | - Y. Nagashima
- National Institute for Fusion Science, Toki-shi 509-5292, Japan
| | - T. Ido
- National Institute for Fusion Science, Toki-shi 509-5292, Japan
| | - Y. Hamada
- National Institute for Fusion Science, Toki-shi 509-5292, Japan
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