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Nakata T, Natsume J, Yamamoto H, Ito Y, Suzuki T, Kawaguchi M, Shiraki A, Kumai S, Sawamura F, Suzui R, Mitsumatsu T, Narita H, Tsuji T, Kubota T, Saitoh S, Okumura A, Kidokoro H. Underlying Disorders in Children With Infection-Related Acute Encephalopathy. Pediatr Neurol 2024; 155:126-132. [PMID: 38636169 DOI: 10.1016/j.pediatrneurol.2024.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/08/2024] [Accepted: 03/18/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Various factors contribute to the development of infection-related acute encephalopathy (AE) in children, such as infectious agents and chronic underlying disorders. We studied underlying disorders in children with AE to identify predisposing factors of AE. METHODS We investigated underlying disorders or past histories in patients with two types of AE from the database in the Tokai area of Japan between 2009 and 2022: 204 patients with AE with reduced subcortical diffusion (AED) and 137 with clinically mild encephalopathy with a reversible splenial lesion (MERS). We compared them with 89 patients with acute disseminated encephalomyelitis (ADEM) to clarify the specific disorders in the two AE types. RESULTS The prevalence of underlying disorders in AED (34%, 70 patients) was significantly higher than that in ADEM (12%, 11 patients) (P < 0.01). The prevalence of underlying disorders in MERS was 23% (32 patients). The underlying disorders included seizure disorders, premature birth, genetic/congenital disorders, and endocrine/renal diseases. In patients with seizure disorders in AED, five patients (18%) had Dravet syndrome and four (15%) had West syndrome, whereas none with MERS had these syndromes. Twenty-five (12%) of 204 patients with AED, three (2%) with MERS, and one (1%) with ADEM were preterm or low birth weight. CONCLUSIONS The high prevalence of seizure disorders suggests that seizure susceptibility is an important predisposing factor in AED. Premature birth also has an impact on the development of AED. Caution is required regarding the development of AE in patients with chronic seizure disorders or premature birth.
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Affiliation(s)
- Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takeshi Suzuki
- Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan
| | - Masahiro Kawaguchi
- Division of Neurology, Aichi Children's Health and Medical Center, Obu, Japan
| | - Anna Shiraki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Pediatrics, Nagoya Memorial Hospital, Nagoya, Japan
| | - Sumire Kumai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fumi Sawamura
- Department of Pediatrics, Aichi Aoitori Medical Welfare Center, Nagoya, Japan
| | - Ryosuke Suzui
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takamasa Mitsumatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hajime Narita
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takeshi Tsuji
- Department of Pediatrics, Aichi Prefecture Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | - Shinji Saitoh
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Aichi, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Aichi, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Shen X, Nakata T, Mizuno S, Imoto I, Selcen D, Ohno K, Engel AG. Impaired gating of γ- and ε-AChR respectively causes Escobar syndrome and fast-channel myasthenia. Ann Clin Transl Neurol 2023; 10:732-743. [PMID: 36891870 PMCID: PMC10187723 DOI: 10.1002/acn3.51756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 02/27/2023] [Indexed: 03/10/2023] Open
Abstract
OBJECTIVE To dissect the kinetic defects of acetylcholine receptor (AChR) γ subunit variant in an incomplete form of the Escobar syndrome without pterygium and compare it with those of a variant of corresponding residue in the AChR ε subunit in a congenital myasthenic syndrome (CMS). METHODS Whole exome sequencing, α-bungarotoxin binding assay, single channel patch-clamp recordings, and maximum likelihood analysis of channel kinetics. RESULTS We identified compound heterozygous variants in AChR γ and ε subunits in three Escobar syndrome (1-3) and three CMS patients (4-6), respectively. Each Escobar syndrome patient carries γP121R along with γV221Afs*44 in patients 1 and 2, and γY63* in patient 3. Three CMS patients share εP121T along with εR20W, εG-8R, and εY15H in patients 4, 5, and 6, respectively. Surface expressions of γP121R- and εP121T-AChR were 80% and 138% of the corresponding wild-type AChR, whereas εR20W, εG-8R, and εY15H reduced receptor expression to 27%, 35%, and 30% of wild-type εAChR, respectively. γV221Afs*44 and γY63* are null variants. Thus, γP121R and εP121T determine the phenotype. γP121R and εP121T shorten channel opening burst duration to 28% and 18% of corresponding wild-type AChR by reducing the channel gating equilibrium constant 44- and 63-fold, respectively. INTERPRETATION Similar impairment of channel gating efficiency of a corresponding P121 residue in the acetylcholine-binding site of the AChR γ and ε subunits causes Escobar syndrome without pterygium and fast-channel CMS, respectively, suggesting that therapy for the fast-channel CMS will benefit Escobar syndrome.
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Affiliation(s)
- Xin‐Ming Shen
- Department of Neurology and Neuromuscular Research LaboratoryMayo ClinicRochesterMinnesotaUSA
| | - Tomohiko Nakata
- Division of Neurogenetics, Center for Neurological Diseases and CancerNagoya University Graduate School of MedicineNagoyaJapan
- Department of PediatricsNagoya University Graduate School of MedicineNagoyaJapan
| | - Seiji Mizuno
- Department of PediatricsCentral Hospital, Aichi Human Service CenterKasugaiJapan
| | - Issei Imoto
- Aichi Cancer Center Research InstituteNagoyaJapan
| | - Duygu Selcen
- Department of Neurology and Neuromuscular Research LaboratoryMayo ClinicRochesterMinnesotaUSA
| | - Kinji Ohno
- Division of Neurogenetics, Center for Neurological Diseases and CancerNagoya University Graduate School of MedicineNagoyaJapan
| | - Andrew G. Engel
- Department of Neurology and Neuromuscular Research LaboratoryMayo ClinicRochesterMinnesotaUSA
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Yamamoto H, Natsume J, Kaneko K, Takahashi T, Wakamatsu M, Ogawa C, Kumai S, Suzui R, Sawamura F, Shiraki A, Nakata T, Kidokoro H, Muramatsu H, Takahashi Y. Two Cases of Juvenile Myelomonocytic Leukemia and Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease. Pediatr Neurol 2023; 144:1-4. [PMID: 37087914 DOI: 10.1016/j.pediatrneurol.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 01/15/2023] [Accepted: 03/02/2023] [Indexed: 04/25/2023]
Abstract
BACKGROUND Myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease (MOGAD) is an autoimmune demyelinating disorder that often manifests after infections or vaccinations. We report two patients who developed MOGAD out of eight patients with juvenile myelomonocytic leukemia (JMML) that has never been reported. METHODS We investigated two patients with JMML who developed MOGAD among 127 patients with leukemia from 2012 to 2021. RESULTS Patient 1 was treated for JMML and developed fever and impaired consciousness at two years and one month of age. Magnetic resonance imaging revealed high-intensity lesions in the left frontal and left occipital white matter. The serum anti-MOG antibody test was positive, while the test was negative in the stored serum 45 days before the onset of encephalopathy. He had relapse of MOGAD after steroid therapy and plasmapheresis. Patient 2, who was treated for JMML, became apathetic and mute at three years and seven months of age. Magnetic resonance imaging revealed left frontoparietal subcortical high-intensity lesions. Anti-MOG antibody at the onset of encephalopathy was positive, while it was negative in stored serum 57 days before and 47 days after the onset. CONCLUSION We treated two patients who developed MOGAD out of eight patients with JMML and none with MOGAD out of 119 patients with acute lymphocytic leukemia, acute myelocytic leukemia, or chronic myelocytic leukemia. The activated autoimmune process via the RAS pathway abnormality may have led to the formation of the anti-MOG antibody and the onset of MOGAD. MOGAD can occur in children with JMML, and abnormalities of the RAS pathway possibly contribute to its onset.
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Affiliation(s)
- Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kimihiko Kaneko
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toshiyuki Takahashi
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Neurology, National Hospital Organization Yonezawa National Hospital, Yonezawa, Japan
| | - Manabu Wakamatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Chikako Ogawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sumire Kumai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ryosuke Suzui
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fumi Sawamura
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Anna Shiraki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Herrera S, Herrera S, Cabacungan E, Cohen S, Thyagarajan B, Jefferies K, Avanaki K, Manwar R, McGuire L, Islam T, Shoo A, Charbel FT, Pillers DAM, Verschuur A, van Steenis A, Boswinkel V, Nijholt I, Boomsma M, Steggerda S, Meijler G, Leijser L, Park SG, Yang HJ, Lim SY, Kim SH, Shin SH, Kim EK, Kim HS, Shiraki A, Kidokoro H, Watanabe H, Taga G, Narita H, Mitsumatsu T, Kumai S, Suzui R, Sawamura F, Ito Y, Yamamoto H, Nakata T, Sato Y, Hayakawa M, Natsume J, Buchmayer J, Kasprian G, Giordano V, Jernej R, Klebermass-Schrehof K, Berger A, Goeral K, Garvey A, El-Shibiny H, Yang E, Inder T, El-Dib M, Garvey A, Grant E, Manning S, Volpe J, Inder T, Roychaudhuri S, Pineda R, Sharon D, Singh E, Steele T, Sheldon Y, Cuddyer D, Yang E, Erdei C, Szakmar E, Andorka C, Barta H, Sesztak T, Varga E, Szabo M, Jermendy A, Panzarini I, King R, Verschuur AS, Hendson L, Carlson H, Scotland J, Zein H, Mohammed K, Meijler G, Leijser L, Bach A, Lambing H, Rogers EE, Xu D, James BA, Ferriero DM, Glass HC, Gano D, Igreja L, Ferreira A, Gomes R, Sousa B, Novo A, Alves JE, Proença E, Carvalho C. Proceedings of the 14th International Newborn Brain Conference: Neuro-imaging studies. J Neonatal Perinatal Med 2023; 16:S75-S101. [PMID: 37599544 DOI: 10.3233/npm-239005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Abdi K, Adams E, Agarwal S, Ergun MA, Altamimi T, Aral A, Arfi H, Armour E, Armstrong L, Mulkey SB, Bambi J, Baxter L, Benner E, Bhattacharya S, Biselele T, Bolay H, Mayorga PC, Carrasco M, Carter E, Chao A, Cooke A, Corsi-Cabrera M, Cubero-Rego L, Cuddyer D, Gano DD, Cubero-Rego MDLA, de Ribaupierre S, Drobyshevsky A, El-Dib M, Elmazoglu Z, Emrick L, Epstein A, Erdei C, Flynn P, Duerden EG, Gibson K, Gregory S, Topa EGA, Aliyu MH, Harmony T, Harshbarger J, Hartley C, Hayakawa M, Kazan HH, Inder T, Ito Y, Jain V, Jurkiewicz M, Kapoor B, Kebaya L, Keles Gulnerman E, Kidokoro H, Kling E, Kumai S, Lebane D, Lemmon M, Salihu HM, Marchant S, Maxfield C, Mbayabo G, Meyerink P, Millman R, Mitsumatsu T, Nakata T, Narita H, Natsume J, Pacheco J, Pagano L, Pardo A, Peyton C, Pineda R, Reddy S, Ricardo-Garcell J, Rikard B, Roychaudhuri S, Nichols ES, Sadowska-Krawczenko I, Sato Y, Sawamura F, Scher M, Sharon D, Sheldon Y, Shiraki A, Singh E, Steele T, Suzui R, Tady BP, Taga G, Tarui T, Trapp N, Tristao L, Tuka D, Ushida T, Usman F, Venkatesan C, Watanabe H, Witulska-Alagöz A, Yamamoto H, Yarnykh V, Younge N. Proceedings of the 14th International Newborn Brain Conference: Fetal and/or neonatal brain development, both normal and abnormal. J Neonatal Perinatal Med 2023; 16:S1-S19. [PMID: 37599540 DOI: 10.3233/npm-239001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
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Suzuki T, Ito Y, Ito T, Kidokoro H, Noritake K, Tsujimura K, Saitoh S, Yamamoto H, Ochi N, Ishihara N, Yasui I, Sugiura H, Nakata T, Natsume J. Pathological gait in Rett syndrome: Quantitative evaluation using three-dimensional gait analysis. Eur J Paediatr Neurol 2023; 42:15-21. [PMID: 36493671 DOI: 10.1016/j.ejpn.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Ataxic-rigid gait is a characteristic gait pathology in patients with Rett syndrome (RTT). In the present study, we aimed to quantitatively evaluate gait pathology in patients with RTT using three-dimensional gait analysis (3DGA). METHODS We performed 3DGA in 11 patients with RTT ranging from 5 to 18 years (median age, 9 years) and in 33 age-matched healthy female controls. We compared the results of 3DGA, including spatiotemporal gait parameters and comprehensive indices of gait kinematics, such as the Gait Deviation Index (GDI) and Gait Profile Score (GPS), between the two groups. The GPS consists of nine sub-indices called Gait Variable Scores (GVSs). Decline in GDI or elevation of GPS and GVS indicated greater abnormal gait pathology. RESULTS The patients demonstrated significantly slower walking speed, lower step length/length of the lower extremities, lower cadence, wider step width, and higher coefficient of variation of step length than the controls. Moreover, the patients had a lower GDI and higher GPS than the controls. The patients also exhibited higher GVSs for eight out of nine gait kinematics, particularly the sagittal plane in the pelvis, hip, knee, and ankle joint; coronal plane in the pelvis and hip joint; and horizontal plane in the pelvis than the controls. CONCLUSIONS Quantitative evaluation of gait pathology in patients with RTT is possible using 3DGA. We found that in addition to ataxic-rigid gait, abnormalities in the coronal plane of the pelvis and hip joint and the horizontal plane of the pelvis were prominent.
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Affiliation(s)
- Takeshi Suzuki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan.
| | - Tadashi Ito
- Three-dimensional motion analysis room, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koji Noritake
- Department of Orthopedic Surgery, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Keita Tsujimura
- Group of Brain Function and Development, Nagoya University Neuroscience Institute of the Graduate School of Science, Nagoya, Japan; Research Unit for Developmental Disorders, Institute for Advanced Research, Nagoya University, Nagoya, Japan
| | - Shinji Saitoh
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobuhiko Ochi
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Naoko Ishihara
- Department of Pediatrics, Fujita Health University School of Medicine, Aichi, Japan
| | - Izumi Yasui
- Department of Pediatrics, Aichi Prefectural Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Nagoya, Japan
| | - Hideshi Sugiura
- Department of Physical Therapy, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Zhang S, Ohkawara B, Ito M, Huang Z, Zhao F, Nakata T, Takeuchi T, Sakurai H, Komaki H, Kamon M, Araki T, Ohno K. A mutation in DOK7 in congenital myasthenic syndrome forms aggresome in cultured cells, and reduces DOK7 expression and MuSK phosphorylation in patient-derived iPS cells. Hum Mol Genet 2022; 32:1511-1523. [PMID: 36579833 PMCID: PMC10117378 DOI: 10.1093/hmg/ddac306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/12/2022] [Accepted: 12/21/2022] [Indexed: 12/30/2022] Open
Abstract
At the neuromuscular junction (NMJ), DOK7 enhances the phosphorylation of muscle-specific kinase (MuSK) and induces clustering of acetylcholine receptors (AChRs). We identified a patient with congenital myasthenic syndrome (CMS) with two heteroallelic mutations in DOK7, c.653-1G>C in intron 5 and c.190G>A predicting p.G64R in the pleckstrin homology domain. iPS cells established from the patient (CMS-iPSCs) showed that c.653-1G>C caused in-frame skipping of exon 6 (120 bp) and frame-shifting activation of a cryptic splice site deleting seven nucleotides in exon 6. p.G64R reduced the expression of DOK7 to 10% of wild-type DOK7, and markedly compromised AChR clustering in transfected C2C12 myotubes. p.G64R-DOK7 made insoluble aggresomes at the juxtanuclear region in transfected C2C12 myoblasts and COS7 cells, which were co-localized with molecules in the autophagosome system. A protease inhibitor MG132 reduced the soluble fraction of p.G64R-DOK7 and enhance the aggresome formation of p.G64R-DOK7. To match the differentiation levels between patient-derived and control iPSCs, we corrected c.190G>A (p.G64R) by CRISPR/Cas9 to make isogenic iPSCs while retaining c.653-1G>C (CMS-iPSCsCas9). Myogenically differentiated CMS-iPSCs showed juxtanuclear aggregates of DOK7, reduced expression of endogenous DOK7, and reduced phosphorylation of endogenous MuSK. Another mutation, p.T77M, also made aggresome to a less extent compared to p.G64R in transfected COS7 cells. These results suggest that p.G64R-DOK7 makes aggresomes in cultured cells and is likely to compromise MuSK phosphorylation for AChR clustering.
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Affiliation(s)
- Shaochuan Zhang
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Bisei Ohkawara
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mikako Ito
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Zhizhou Huang
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fei Zhao
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoya Takeuchi
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hidetoshi Sakurai
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Hirofumi Komaki
- Department of Pediatrics, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Masayoshi Kamon
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Toshiyuki Araki
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Kinji Ohno
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Takasaki A, Kurita T, Yanagisawa M, Ino A, Hiramatsu D, Ikmi A, Ito H, Kato T, Fukuoka S, Sugimoto T, Nakata T, Masuda J, Tanabe M, Kakimoto H, Dohi K. Impact of in-hospital medical management for COVID-19 pandemic on door-to-balloon time in patients with ST-elevation myocardial infarction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Delayed door-to-balloon (DTB) time and deterioration of in-hospital mortality during the coronavirus disease 2019 (COVID-19) pandemic have been reported. Little is known about the impact of changes in in-hospital medical management before primary percutaneous coronary intervention (PCI) for COVID-19 such as screening test (antigen or polymerase chain reaction (PCR) tests, chest CT for excluding the pneumoniae) and primary PCI under full personal protective equipment (PPE) on DTB time and in-hospital mortality.
Purpose
The purpose of this study was to evaluate the impact of in-hospital medical management for COVID-19 on DTB time and in-hospital mortality during COVID-19 pandemic period.
Methods
We compared DTB time and in-hospital mortality of 502 ST-elevation myocardial infarction (STEMI) patients during COVID-19 pandemic (February 2020 and January 2021) with 2035 STEMI patients before pandemic (February 2016 and January 2020) using date from Mie ACS registry, a retrospective and multicenter registry.
Results
The COVID-19 screening tests before primary PCI and/or primary PCI under full PPE was performed on 173/502 (34.5%) patients (antigen or PCR tests; 39 (7.8%), chest CT; 156 (31.3%), full PPE; 11 (2.2%)). These patients had lower rate of achievement of DTB time ≤90 min compared with others (Figure 1A). Moreover, In-hospital management of COVID-19 screening tests and/or primary PCI under full PPE was an independent factor of DTB time>90 min with odds ratio of 1.94 (95% confidential interval: 1.37–2.76, p<0.001). In addition, in-hospital mortality of those patients was higher compared with others (Figure 1B).
Conclusion
In-hospital medical management for COVID-19 screening tests before primary PCI and/or primary PCI under full PPE was the independent factor of DTB time>90 min. This study reinforces the need to focus efforts on shortening DTB time, while controlling the epidemic of infection.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | - T Kurita
- Mie University Hospital , Tsu , Japan
| | | | - A Ino
- Ise City Red Cross Hospital, cardiology , Ise , Japan
| | - D Hiramatsu
- Matsusaka chuo general hospital , matsusaka , Japan
| | - A Ikmi
- Suzuka chuo general hospital , Suzuka , Japan
| | - H Ito
- Mie University Hospital , Tsu , Japan
| | - T Kato
- Mie prefectural general medical center , yokkaichi , Japan
| | - S Fukuoka
- mie chuo medical center , tsu , Japan
| | | | | | - J Masuda
- Mie prefectural general medical center , yokkaichi , Japan
| | - M Tanabe
- Mie University Hospital , Tsu , Japan
| | - H Kakimoto
- saiseikai matsusaka general hospital , matsusaka , Japan
| | - K Dohi
- Mie University Hospital , Tsu , Japan
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Narita K, Muramatsu H, Narumi S, Nakamura Y, Okuno Y, Suzuki K, Hamada M, Yamaguchi N, Suzuki A, Nishio Y, Shiraki A, Yamamori A, Tsumura Y, Sawamura F, Kawaguchi M, Wakamatsu M, Kataoka S, Kato K, Asada H, Kubota T, Muramatsu Y, Kidokoro H, Natsume J, Mizuno S, Nakata T, Inagaki H, Ishihara N, Yonekawa T, Okumura A, Ogi T, Kojima S, Kaname T, Hasegawa T, Saitoh S, Takahashi Y. Whole-exome analysis of 177 pediatric patients with undiagnosed diseases. Sci Rep 2022; 12:14589. [PMID: 36028527 PMCID: PMC9418234 DOI: 10.1038/s41598-022-14161-6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 06/02/2022] [Indexed: 11/09/2022] Open
Abstract
Recently, whole-exome sequencing (WES) has been used for genetic diagnoses of patients who remain otherwise undiagnosed. WES was performed in 177 Japanese patients with undiagnosed conditions who were referred to the Tokai regional branch of the Initiative on Rare and Undiagnosed Diseases (IRUD) (TOKAI-IRUD). This study included only patients who had not previously received genome-wide testing. Review meetings with specialists in various medical fields were held to evaluate the genetic diagnosis in each case, which was based on the guidelines of the American College of Medical Genetics and Genomics. WES identified diagnostic single-nucleotide variants in 66 patients and copy number variants (CNVs) in 11 patients. Additionally, a patient was diagnosed with Angelman syndrome with a complex clinical phenotype upon detection of a paternally derived uniparental disomy (UPD) [upd(15)pat] wherein the patient carried a homozygous DUOX2 p.E520D variant in the UPD region. Functional analysis confirmed that this DUOX2 variant was a loss-of-function missense substitution and the primary cause of congenital hypothyroidism. A significantly higher proportion of genetic diagnoses was achieved compared to previous reports (44%, 78/177 vs. 24-35%, respectively), probably due to detailed discussions and the higher rate of CNV detection.
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Affiliation(s)
- Kotaro Narita
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Satoshi Narumi
- Department of Molecular Endocrinology, National Research Institute for Child Health, Tokyo, Japan.,Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Yuji Nakamura
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
| | - Yusuke Okuno
- Medical Genomics Center, Nagoya University Hospital, Nagoya, Japan.,Department of Virology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Kyogo Suzuki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Motoharu Hamada
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Naoya Yamaguchi
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
| | - Atsushi Suzuki
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan
| | - Yosuke Nishio
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Anna Shiraki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Ayako Yamamori
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Yusuke Tsumura
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Fumi Sawamura
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Masahiro Kawaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Manabu Wakamatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Shinsuke Kataoka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Kohji Kato
- Department of Genetics, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
| | - Hideyuki Asada
- Department of Pediatrics, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, Nagoya, Japan
| | - Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | - Yukako Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Seiji Mizuno
- Department of Clinical Genetics, Aichi Developmental Disability Center Central Hospital, Kasugai, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Hidehito Inagaki
- Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Naoko Ishihara
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Takahiro Yonekawa
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Tomoo Ogi
- Department of Genetics, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
| | - Seiji Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Tadashi Kaname
- Department of Genome Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Tomonobu Hasegawa
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| | - Shinji Saitoh
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan.
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
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10
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Nakata T, Rin I, Yaida YA, Ushimaru A. Horizontal orientation facilitates pollen transfer and rain damage avoidance in actinomorphic flowers of Platycodon grandiflorus. Plant Biol (Stuttg) 2022; 24:798-805. [PMID: 35289975 DOI: 10.1111/plb.13414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
In zoophilous plants, floral orientation evolved under both biotic and abiotic pressure to enhance pollination success. However, the adaptive significance of horizontal orientation in radially symmetrical (actinomorphic) flowers remains largely unknown, although that of bilaterally symmetrical flowers has been well studied. We experimentally altered floral angle in a population of insect-pollinated Platycodon grandiflorus flowers to examine the effects of floral orientation on pollinator behaviour, pollination success and pollen rain damage avoidance. To further investigate the potential pollen damage by rain, we obtained past precipitation records for the study area during the flowering season, and experimentally tested P. grandiflorus pollen damage by water. Horizontally oriented flowers received more pollinator visits and had pollen grains on the stigma in male and/or female phases than downward- and/or upward-oriented flowers and avoided pollen damage by rainfall better than upward-oriented flowers. A pollen germination experiment showed that approximately 30% of pollen grains burst in distilled water, indicating that pollen damage by rainfall may be significant in P. grandiflorus. Our field experiments revealed that upward-oriented flowers cannot avoid pollen damage by rainfall during the flowering period, and that both upward- and downward-oriented flowers experience pollinator limitation in female success. Therefore, horizontal flower orientation appears to be adaptive in this insect-pollinated actinomorphic species that blooms during the rainy season.
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Affiliation(s)
- T Nakata
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | - I Rin
- Faculty of Human Development, Kobe University, Kobe, Japan
| | - Y A Yaida
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | - A Ushimaru
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
- Faculty of Human Development, Kobe University, Kobe, Japan
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11
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Ohno A, Okumura A, Fukasawa T, Nakata T, Suzuki M, Tanaka M, Okai Y, Ito Y, Yamamoto H, Tsuji T, Kidokoro H, Saitoh S, Natsume J. Acute encephalopathy with biphasic seizures and late reduced diffusion: Predictive EEG findings. Brain Dev 2022; 44:221-228. [PMID: 34876315 DOI: 10.1016/j.braindev.2021.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 10/29/2021] [Accepted: 11/10/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) is a common type of acute encephalopathy in Japan; the condition is clinically characterized by prolonged seizures as the initial neurological symptom, followed by late seizures 4-6 days later. It is difficult to differentiate AESD from prolonged febrile seizures (PFSs). Here, we explored the use of electroencephalography to differentiate AESD from PFSs. METHODS We studied the electroencephalograms (EEGs) of children <6 years of age diagnosed with AESD or PFSs; all EEGs were recorded within 48 h of seizure onset (i.e., before the late seizures of AESD). Two pediatric neurologists evaluated all EEGs, focusing on the basic rhythm, slowing during wakefulness/arousal by stimuli, spindles, fast waves, and slowing during sleep. RESULTS The EEGs of 14 children with AESD and 31 children with PFSs were evaluated. Spindles were more commonly reduced or absent in children with AESD than in those with PFSs (71% vs. 31%, p = 0.021). Fast waves were also more commonly reduced or absent in children with AESD (21% vs. 0%, p = 0.030). The rates of all types of slowing did not differ between children with AESD and those with PFSs, but continuous or frequent slowing during sleep was more common in the former (50% vs. 17%, p = 0.035). CONCLUSIONS EEG findings may usefully differentiate AESD from PFSs. Reduced or absent spindles/fast waves and continuous or frequent slowing during sleep are suggestive of AESD in children with prolonged seizures associated with fever.
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Affiliation(s)
- Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan.
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Aichi, Japan
| | | | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Motomasa Suzuki
- Department of Pediatric Neurology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Masaharu Tanaka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Yu Okai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Takeshi Tsuji
- Department of Pediatrics, Okazaki City Hospital, Aichi, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Shinji Saitoh
- Department of Pediatric and Neonatology, Nagoya City University Graduate School of Medical Sciences, Aichi, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
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12
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Sawamura F, Natsume J, Nakata T, Muramatsu H, Takahashi Y. Dorsal myelopathy after nelarabine and intrathecal methotrexate therapy. Pediatr Int 2022; 64:e15334. [PMID: 36331221 DOI: 10.1111/ped.15334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 01/05/2023]
Affiliation(s)
- Fumi Sawamura
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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13
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Abdi K, Abramsky R, Andescavage N, Bambi J, Basu S, Bearer C, Benner EJ, Biselele T, Bliznyuk N, Breckpot J, Carey G, Chao A, Christiansen LI, Comani S, Croce P, De Vos M, Dereymaeker A, Dubois L, Eisch AJ, Epstein A, Geva N, Geva Y, Gewillig M, Gillis S, Goldberg RN, Gram M, Gregory S, Guez-Barber D, Hayakawa M, Henriksen NL, Hermans T, Hershkovitz R, Holgersen K, Holmqvist B, Jain V, Jansen K, Kandula V, Kapse K, Kawaguchi M, Khair A, Khazaei M, Kidokoro H, Kiffer FC, Kisilewicz K, Kumai S, Lacaille H, Ley D, Limperopoulos C, Lindholm SEH, Lukusa P, Lundberg R, MacFarlane P, Matak P, Mavinga L, Mayer C, Mbayabo G, Mitsumatsu T, Mubungu G, Murnick J, Nakata T, Narita H, Nataraj P, Natsume J, Naulaers G, Nikam R, Ortenlöf N, Ottolini K, Pan X, Pankratova S, Pegram K, Penn AA, Pradhan S, Raeisi K, Rickman N, Rikard B, Rotem R, Sangild PT, Sato Y, Sawamura F, Shany E, Shelef I, Shiraki A, Smets L, Sura L, Suzui R, Suzuki T, Tady BP, Taga G, Tamburro G, Thewissen L, Thompson JW, Thymann T, Tokat C, Vacher CM, Valdes C, Vallius S, Vatolin S, Watanabe H, Weintraub AY, Weiss M, Yamamoto H, Yaniv SS, Younge N, Yun S, Zappasodi F. Proceedings of the 13th International Newborn Brain Conference: Fetal and/or neonatal brain development, both normal and abnormal. J Neonatal Perinatal Med 2022; 15:411-426. [PMID: 35431185 DOI: 10.3233/npm-229002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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14
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Ito Y, Maki Y, Okai Y, Kidokoro H, Bagarinao E, Takeuchi T, Ohno A, Nakata T, Ishihara N, Okumura A, Yamamoto H, Maesawa S, Natsume J. Involvement of brain structures in childhood epilepsy with centrotemporal spikes. Pediatr Int 2022; 64:e15001. [PMID: 34562291 DOI: 10.1111/ped.15001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/12/2021] [Accepted: 09/21/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND We aimed to investigate electroencephalography (EEG)-functional magnetic resonance imaging (fMRI) findings to elucidate the interictal epileptiform discharge (IED)-related functional alterations in deep brain structures and the neocortex in childhood epilepsy with centrotemporal spikes (CECTS). METHODS Ten children with CECTS (median age 8.2 years), referred to our hospital within a year of onset, were eligible for inclusion. They underwent EEG-fMRI recording during sleep. Llongitudinal evaluations, including medical examinations, intelligence tests, and questionnaires about developmental disabilities, were performed. The initial evaluation was performed at the same time as the EEG-fMRI, and the second evaluation was performed over 2 years after the initial evaluation. RESULTS Three children were unable to maintain sleep during the EEG-fMRI recording, and the remaining seven children were eligible for further assessment. All patients showed unilateral-dominant centrotemporal spikes during scans. One patient had only positive hemodynamic responses, while the others had both positive and negative hemodynamic responses. All patients showed IED-related hemodynamic responses in the bilateral neocortex. For deep brain structures, IED-related hemodynamic responses were observed in the cingulate gyrus (n = 4), basal ganglia (n = 3), thalamus (n = 2), and default mode network (n = 1). Seizure frequencies at the second evaluation were infrequent or absent, and the longitudinal results of intelligence tests and questionnaires were within normal ranges. CONCLUSIONS We demonstrated that IEDs affect broad brain areas, including deep brain structures such as the cingulate gyrus, basal ganglia, and thalamus. Deep brain structures may play an important role in the pathophysiology of CECTS.
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Affiliation(s)
- Yuji Ito
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Pediatrics, Aichi Prefecture Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Yuki Maki
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yu Okai
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Pediatric Neurology, Toyota Municipal Child Development Center, Toyota, Japan
| | - Hiroyuki Kidokoro
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Tomoya Takeuchi
- Department of Pediatrics, Japanese Red Cross Nagoya Daiichi Hospital, Toyota, Japan
| | - Atsuko Ohno
- Department of Pediatric Neurology, Toyota Municipal Child Development Center, Toyota, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoko Ishihara
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Nagoya, Japan
| | - Hiroyuki Yamamoto
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoshi Maesawa
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Brain & Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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15
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Maeda T, Kidokoro H, Tachibana T, Shiraki A, Yamamoto H, Nakata T, Fukasawa T, Kubota T, Sato Y, Kato T, Natsume J, Okumura A, Hayakawa M. Trajectory of the incidence of brushes on preterm electroencephalogram and its association with neurodevelopment in extremely low birth weight infants. Brain Dev 2021; 43:979-987. [PMID: 34334244 DOI: 10.1016/j.braindev.2021.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/16/2021] [Accepted: 07/11/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Brush or delta brush is a well-known characteristic waveform in preterm electroencephalograms. However, the longitudinal trajectory of brushes and its association with neurodevelopment remain uncertain. METHODS We analyzed the longitudinal incidence of brushes in 36 extremely low birth weight infants without severe brain lesions and its association with neurodevelopment and white matter abnormality. Conventional eight-channel electroencephalograms were recorded at 30, 32, 36, and 40 postmenstrual weeks (PMW). Incidence of brushes was calculated as the sum of brushes from each channel separated by active sleep and quiet sleep. A developmental delay was defined as a developmental quotient of <85 assessed at corrected age of 18 months. White matter abnormalities were evaluated with term-equivalent magnetic resonance imaging. RESULTS The median incidence of brushes (per minute) in 36 infants at PMW 30, 32, 36, and 40 was 16.4, 20.4, 22.5, and 1.8 during active sleep and 7.5, 10.3, 11.5, and 1.7 during quiet sleep, respectively. Among the 36 infants, 14 infants were diagnosed with developmental delay. Longitudinal trajectories of the incidence of brushes were different between the normal and the delayed development groups. Brushes were observed most frequently at 36 PMW in the delayed development group. The incidence of brushes at 36 PMW was significantly correlated with the severity of white matter abnormalities and negatively correlated with the developmental quotient. CONCLUSION The incidence of brushes at 36 PMW can be a unique predictor of early neurodevelopment in extremely low birth weight infants without severe brain lesions.
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Affiliation(s)
- Takashi Maeda
- Department of Pediatric Cardiology and Neonatology, Ogaki Municipal Hospital, Gifu, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan.
| | - Takashi Tachibana
- Department of Pediatric Cardiology and Neonatology, Ogaki Municipal Hospital, Gifu, Japan
| | - Anna Shiraki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | | | - Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Aichi, Japan
| | - Yoshiaki Sato
- Division of Neonatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, Aichi, Japan
| | - Toru Kato
- Department of Pediatrics, Okazaki City Hospital, Aichi, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Aichi, Japan
| | - Masahiro Hayakawa
- Division of Neonatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, Aichi, Japan
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16
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Kobara M, Toba H, Nakata T. Expression and roles of N-type Ca channel in cardiaomyocytes. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Voltage dependent Ca channels are divided to L-, T-, N-, P/Q-, and R-types, and N-type Ca channel (NCC) is mainly expressed in nerve terminal and regulates neurotransmitter release. Recently, NCC has been reported to express in adrenal gland and renal tubular cells. We examined whether NCC is expressed in cardiac myocytes and if so, the roles of this channel.
Methods
Expression of NCC mRNA and protein in cardiomyocytes were assessed by quantitative real time PCR and Western blot analysis using neonatal rat cultured cardiomyocytes, infant, and adult rat hearts. Expression site of NCC in cardiomyocytes was examined by confocal imaging of immunofluorescent staining. The roles of NCC in physiological Ca transient in neonatal myocytes were examined using fluorescence imaging of Fluo4, an intracellular Ca indicator. To examine the effects of pathological condition, such as heart failure and ischemia-reperfusion, on NCC expression, cultured cardiomyocytes were treated with norepinephrine (10 μmol/L, 24 hours) or subjected to 5 hours of hypoxia followed by 30 minutes of reoxygenation. In addition, adult rats were subjected to myocardial infarction by ligating the left anterior coronary artery. Lethal myocyte injury was examined by LDH activity in culture medium and myocyte apoptosis was examined by nuclear staining with DAPI and caspase 3 activity. To clarify the roles of NCC in neonatal myocytes in these pathological conditions, we examine the effect of ω-conotoxin, a selective NCC blocker.
Results
NCC mRNA and protein were expressed in neonatal cardiomyocytes. Immunocytochemical staining showed NCC was expressed in myocyte plasma membrane. During physiological spontaneous beating, ω-conotoxin did not affect beating rate and intra cellular Ca transient, suggesting that the roles of NCC on physiological beating are little. After birth level of NCC mRNA expression in cardiac tissue gradually decreased within 2 weeks and low level of mRNA expressed continuously in adult cardiac tissue. However, in pathological condition, mRNA and protein levels of NCC in non-infarcted region were increased 4 weeks after myocardial infarction. In addition, hypoxia-reoxygenation and norepinephrine administration increased LDH release and myocyte apoptosis in association with increase in NCC expression in neonatal cultured myocytes. ω-conotoxin significantly suppressed hypoxia/reoxygenation- and norepinephrine-induced LDH release and caspase 3 activation.
Conclusion
NCC is expressed in neonatal cardiac myocytes and the expression level was decreased after birth. Pathological condition, such as ischemic heart disease and heart failure, upregulated NCC expression in cardiomyocytes and NCC exacerbated lethal myocyte injury, while roles of NCC in physiological beating are little.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Kobara
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - H Toba
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - T Nakata
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
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17
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Maki Y, Kidokoro H, Okumura A, Yamamoto H, Nakata T, Fukasawa T, Kubota T, Kawaguchi M, Suzuki T, Tanaka M, Okai Y, Sakaguchi Y, Ohno A, Negoro T, Takahashi Y, Natsume J. Repetitive sleep starts: An important differential diagnosis of infantile spasms. Epilepsy Behav 2021; 121:108075. [PMID: 34077901 DOI: 10.1016/j.yebeh.2021.108075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/06/2021] [Accepted: 05/11/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Repetitive sleep starts (RSS) are clusters of nonepileptic, spasm-like movements occurring during sleep onset. However, their characteristics have yet to be defined. We conducted a clinicoelectroencephalographic study of children with RSS to clarify their detailed characteristics. METHODS To differentiate starts from epileptic spasms, we recruited children with brief "crescendo-decrescendo" muscle contractions that simultaneously involved the limbs and trunk without electroencephalogram changes, and that fulfilled the following criteria: (1) repeated occurrence (five or more) and (2) manifestation during sleep stage N1-N2. A total of nine children met these criteria. Their clinical information and video-electroencephalogram data were analyzed retrospectively. RESULTS The background conditions observed at onset of RSS were perinatal hypoxic-ischemic encephalopathy (n = 4), West syndrome of unknown etiology (n = 1), and traumatic brain injury (n = 1). The age at onset of RSS, the number of starts in a given RSS cluster, the interval between starts, and the duration of surface electromyogram activity were between 3 and 46 months, 5 and 547, <1 and 60 s, and 0.3 and 5.4 s, respectively. None of the median value of these parameters differed between children with and without corticospinal tract injury. During the median follow-up period of 33 months, RSS disappeared spontaneously in five. CONCLUSION This is the largest case series of RSS clarifying their clinicoelectroencephalographic characteristics reported to date. To avoid unnecessary antiepileptic therapies, clinicians should be aware of RSS and distinguish it from other disorders involving involuntary movements or seizures, especially epileptic spasms.
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Affiliation(s)
- Yuki Maki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | - Masahiro Kawaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takeshi Suzuki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaharu Tanaka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yu Okai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoko Sakaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tamiko Negoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Nakajima K, Nakata T, Doi T, Tada H, Saito S, Maruyama K. Creation of mortality risk calculator using a I-123 mIBG-based machine learning model: differential prediction of arrhythmic death and heart-failure death. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab111.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Although I-123 meta-iodobenzylguanidine (mIBG) has been applied to patients with chronic heart failure (CHF), a diagnostic tool for differential prediction of fatal arrhythmic events (ArE) and heart-failure death (HFD) has been pursued.
Purpose
The aim of this study was to create a calculator of mortality risk for differentiating mode of cardiac death using a machine learning (ML) method, and to test the accuracy in a new cohort of patients with CHF.
Methods
A total of 529 patients with CHF was used as the training database for ML. The ArE group consisted of patients with arrhythmic death, sudden cardiac death and appropriate therapy by implantable cardioverter defibrillator. A heart-to-mediastinum ratio (H/M) standardized to the medium-energy collimator condition was calculated with a planar anterior mIBG scintigram. The best classifier models for predicting HFD and ArE were determined by four-fold cross validation. Input variables included age, sex, New York Heart Association (NYHA) functional class, left ventricular ejection fraction, ischemic etiology, mIBG H/M and washout rate, and b-type natriuretic peptide (BNP) or NT Pro BNP, estimated glomerular filtration rate, hemoglobin, and complications such as diabetes and hypertension. After creating the ML-based model, the constructed classifier functions for ArE, HFD, and survival were exported for subsequent use. A new cohort of patients (n = 312, age 67 ± 13 years, 2015 or later) was used to test the ML-based model.
Results
The training database included 141 events (27%) with ArE (7%) and HFD (20%). Receiver-operating characteristic analysis by four-fold validation showed area under the curve value of 0.90 for HFD and 0.73 for ArE. Among various ML methods, the logistic regression method demonstrated the most stable calculation of the probability of ArE followed by random forest and gradient boosted tree methods. Therefore, the logistic-regression method was used for calculating both HFD and ArE probabilities. In the test cohort, patients with a high HFD probability >8% resulted in 6.3-fold higher HFD than those with low probability (≤ 8%). Patients with high ArE probability >8% showed 2.5-fold higher ArE than those with low probability (≤ 8%).
Conclusion
The ML-based mortality risk calculator could be used for stratifying patients at high and low risks, which might be useful for estimating appropriate treatment strategy.
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Affiliation(s)
- K Nakajima
- Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Nakata
- Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - T Doi
- Teine Keijinkai Hospital, Sapporo, Japan
| | - H Tada
- Kanazawa University Hospital, Kanazawa, Japan
| | - S Saito
- Kanazawa University Hospital, Kanazawa, Japan
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Nishio Y, Kidokoro H, Takeo T, Narita H, Sawamura F, Narita K, Kawano Y, Nakata T, Muramatsu H, Hara S, Kaname T, Natsume J. The eldest case of MICPCH with CASK mutation exhibiting gross motor regression. Brain Dev 2021; 43:459-463. [PMID: 33272775 DOI: 10.1016/j.braindev.2020.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/02/2020] [Accepted: 11/15/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND MICPCH is manifested as microcephaly associated with pontocerebellar hypoplasia and global developmental delay but developmental regression has never been reported. We describe the detailed clinical history of a woman with intellectual disability and microcephaly with pontine and cerebellar hypoplasia (MICPCH) with a CASK mutation who exhibited gross motor regression after adolescence. CASE The patient experienced severe motor and intellectual developmental delay with microcephaly from infancy. The initial diagnosis was Rett syndrome based on her clinical features, including hand stereotypes and the absence of structural abnormality on magnetic resonance imaging (MRI) performed at the age of 5 years. Although gross motor abilities developed slowly and she could walk independently, she never acquired speech or understanding of languages. After adolescence, her motor ability gradually regressed so that she was unable to stand without support and moved with a wheelchair. At the age of 31 years, because of her atypical clinical course for Rett syndrome, whole exome sequencing was performed, which revealed a de novo heterozygous c.2068 + 1G > A mutation in the CASK gene (NM_001126055). Brain MRI revealed mild pontocerebellar hypoplasia compatible with the clinical phenotype of MICPCH. DISCUSSION This case suggests that MICPCH with a CASK mutation might cause developmental regression after adolescence and might be regarded as a neurodegenerative disorder.
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Affiliation(s)
- Yosuke Nishio
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Pediatrics, TOYOTA Memorial Hospital, Toyota, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Toshiki Takeo
- Department of Pediatrics, TOYOTA Memorial Hospital, Toyota, Japan
| | - Hajime Narita
- Department of Pediatrics, TOYOTA Memorial Hospital, Toyota, Japan
| | - Fumi Sawamura
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kotaro Narita
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshihiko Kawano
- Department of Pediatrics, TOYOTA Memorial Hospital, Toyota, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinya Hara
- Department of Pediatrics, TOYOTA Memorial Hospital, Toyota, Japan
| | - Tadashi Kaname
- Department of Genome Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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20
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Natsume J, Ishihara N, Azuma Y, Nakata T, Takeuchi T, Tanaka M, Sakaguchi Y, Okai Y, Ito Y, Yamamoto H, Ohno A, Kidokoro H, Hattori A, Nabatame S, Kato K. Lenticular nuclei to thalamic ratio on PET is useful for diagnosis of GLUT1 deficiency syndrome. Brain Dev 2021; 43:69-77. [PMID: 32739099 DOI: 10.1016/j.braindev.2020.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/01/2020] [Accepted: 07/01/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To establish an objective method of [18F]-fluorodeoxyglucose positron emission tomography (FDG-PET) that can assist in the diagnosis of glucose transporter 1 deficiency syndrome (GLUT1-DS). METHODS FDG-PET was performed in 8 patients with a mean age of 12.5 years (range, 2-22 years) with GLUT1-DS. Their PET findings were compared with those of 45 controls with a mean age of 11.2 years (range, 2-21 years) by statistical parametric mapping (SPM12, Welcome Neurological Institute). The controls had epilepsy of unknown etiology and normal MRI findings. The age-adjusted ratios of mean radioactivities in regions of interest (ROIs) of bilateral lenticular nuclei, thalami, and the whole cerebral cortex were also measured. The sensitivities and specificities of the ratios for the differential diagnosis of GLUT1-DS were also determined. RESULTS SPM showed significantly decreased uptake in bilateral thalami and increased uptake in bilateral lenticular nuclei in patients with GLUT1-DS. There were no areas in the cerebral cortex with significant differences between patients and controls. On ROI analysis, by setting the cut-off value of the age-adjusted lenticular nuclei/thalami radioactivity ratio to 1.54, patients with GLUT1-DS were differentiated from controls with sensitivity of 1.00 and specificity of 0.98. CONCLUSION The age-adjusted lenticular nuclei/thalami radioactivity ratio on PET can distinguish patients with GLUT1-DS from patients with epilepsy of unknown etiology with high sensitivity and specificity. It is important to pay attention to the metabolism of the lenticular nuclei and thalami on PET for the diagnosis of GLUT1-DS.
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Affiliation(s)
- Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan; Brain and Mind Research Center, Nagoya University, Nagoya, Japan.
| | - Naoko Ishihara
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiteru Azuma
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoya Takeuchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaharu Tanaka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoko Sakaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yu Okai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | - Ayako Hattori
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shin Nabatame
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Katsuhiko Kato
- Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
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21
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Mizutani H, Kurita T, Takasaki A, Nakata T, Konishi K, Izumi D, Omura T, Masuda J, Ito M, Dohi K. Premature acute coronary syndrome patients do not have a better prognosis for their age than mature ACS patients by propensity score match analysis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Acute coronary syndrome (ACS) is the most important cardiovascular (CV) disease with a prevalence that increases with age. There is no data which compared the prognosis with premature ACS and mature ACS using propensity score matched analysis
Purpose
The purpose of this study was to compare the prognosis of premature ACS patients and mature ACS patients using propensity score matched analysis.
Methods
We analyzed of 4249 ACS patients (69.1±12.6, male 77%) including 773 premature ACS patients (50.1±6.8, male 78%) and 3476 mature ACS (73.3±9.3, male 77%) from January 2013 to December 2018, using data from Mie ACS Registry, a prospective and multicenter registry in Japan.
Premature onset of ACS was defined as younger than 65 years old in male and 55 years old in female.
Primary end point was as major adverse cardiac event (MACE) including cardiovascular death, non-fetal myocardial infarction, heart failure requiring admission and unstable angina.
Results
During median follow duration of 742 days ranging from409 to 828 days, 502 MACE were occurred. Premature ACS patients were younger and showed higher body mass index compared to mature ACS patients (50.1±6.8 vs 73.3±9.3 y.o., 25.5 vs 23.0, P<0.001, respectively). However, premature ACS patients were more likely to be associated with ST elevation myocardial infarction, dyslipidemia, family history of coronary artery disease (CAD) and lower Killip classification compared to mature ACS patients (P<0.01, respectively). Common CAD risk factors such as hypertension, diabetes mellitus and past history of CAD were less associated with premature ACS patients compared to mature ACS patients (P<0.01, respectively). Unadjusted Kaplan-Meier survival curves demonstrated the favorable prognosis in premature ACS patients compared to mature ACS patients with hazard ratio of 0.57 (95% CI 0.45–0.71, P<0.001, see Figure 1A). We compared a 1:1 propensity score-matched cohort of 1208 patients with or without premature onset of ACS adjusting the several factors mentioned above (n=604, respectively). Age could not be introduced as a factor of propensity score match when comparing premature and mature ACS patients. After propensity score-match, premature ACS patients is about 18 years younger than mature ACS patients (50.7±6.5 vs 68.5±8.2 y.o., P<0.001). The average age of premature ACS was younger than that of mature ACS, but MACE by Kaplan-Meier survival analysis for premature ACS patients was equivalent to mature ACS patients (P=0.77, see Figure 1B).
Conclusion
Premature ACS patients are required very careful management because they might have factors with unfavorable prognosis, such as lifestyle habit and genetics, that may be beyond age.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - T Kurita
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - A Takasaki
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | | | - K Konishi
- Suzuka General Hospital, Suzuka, Japan
| | - D Izumi
- Ise Red Cross Hospital, Cardiology, Ise, Japan
| | - T Omura
- Kuwana City Medical Center, Kuwana, Japan
| | - J Masuda
- Mie prefectural general medical center, Yokkaichi, Japan
| | - M Ito
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - K Dohi
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
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Hara H, Nakata T, Nagata T, Igarashi T, Murakami M, Ito H, Niwano S, Ako J. Evaluation of temporal changes in longitudinal strain distribution during the systolic period to determine left ventricular activation sequence: a study using 2D speckle-tracking echocardiography. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Evaluation of two-dimensional (2D) speckle-tracking longitudinal strain (LS) is useful for assessing global and regional left ventricular (LV) dysfunction.
Purpose
The purpose of this study was to test the hypothesis that temporal changes in regional 2D-LS distribution, (i.e., changes in area and intensity of the negative strain), during the systolic period may reflect the LV activation sequence.
Methods
We studied 52 patients with an ejection fraction <35% who were classified into four groups: complete left bundle branch block (LBBB, QRS 162±17 ms, n=17); right ventricular pacing from inferior septum (RVP, QRS 180±29 ms, n=16); left VP from lateral branch of the coronary sinus (LVP, QRS 182±21 ms, n=9); and no conduction block (Narrow QRS, QRS 100±9 ms, n=19). Longitudinal strain was evaluated in three standard apical views, and then bulls-eye distribution maps were constructed every 50 ms from the QRS onset to aortic valve closing (AVC) and at the time of the end of QRS. Segments indicating negative strain at the end of QRS were regarded as an early contraction site. Segments with intensifying negativity of strain as it got closer to the AVC were regarded as a late contraction site.
Results
In patients with LBBB, negative strain appeared initially in the septum region. Then, the contracted area enlarged including the apical region, and the basal lateral region contracted late. On the other hand, Narrow QRS showed a few regional differences in strain at the end of QRS (standard deviation in 17-segments: Narrow QRS 1.3±0.4%*, LBBB 3.3±1.1%, RVP 3.2±1.0%, LVP 3.3±1.1%, *p<0.001), and contracted homogeneously during the systolic period. RVP and LVP showed negative strain at the end of QRS in septum and lateral regions respectively, with the contracted area becoming enlarged towards the opposite regions of the early contracted regions.
Conclusion
The 2D-LS distribution during the systolic period reflects the LV contraction process in patients with an altered ventricular activation sequence, and may have potential for identifying the regions of early activation site and subsequent activation propagation.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Hara
- Numazu City Hospital, Cardiology, Numazu, Japan
| | - T Nakata
- Numazu City Hospital, Cardiology, Numazu, Japan
| | - T Nagata
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - T Igarashi
- Numazu City Hospital, Cardiology, Numazu, Japan
| | - M Murakami
- Numazu City Hospital, Cardiology, Numazu, Japan
| | - H Ito
- Numazu City Hospital, Cardiology, Numazu, Japan
| | - S Niwano
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
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Kubota T, Kidokoro H, Narahara S, Fukasawa T, Nakata T, Natsume J, Okumura A. Evaluation of interobserver variability in application of the new neonatal seizure classification proposed by the ILAE Task Force. Epilepsy Behav 2020; 111:107292. [PMID: 32759069 DOI: 10.1016/j.yebeh.2020.107292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 06/23/2020] [Accepted: 06/28/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Clinical identification of neonatal seizures (NS) remains challenging. The International League Against Epilepsy (ILAE) Task Force on Neonatal Seizures has proposed a new classification of NS, based on the 2017 ILAE seizure classification. One of the key points of this proposed NS classification is that seizure types should be determined by the "predominant" clinical feature. However, when the definition of "predominant" is uncertain, interobserver variability may arise. METHODS We asked 49 health professionals to classify 21 NS video-electroencephalogram (EEG) recordings using the proposed 9 seizure types. RESULTS The degree of agreement among participants was low, and agreement was weak among experts in neonatal neurology. Among experts, the rate of agreement was <50% for 2 NS. This disagreement was related to differences in the interpretation of "predominant features." Although interobserver variability was present among users of the new NS classification, the reproducibility of the NS classification was satisfactory. CONCLUSION Education designed to foster consistent application of the standards for NS will be important for reducing interobserver variability and expanding the use of the new NS classification.
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Affiliation(s)
- Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan.
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sho Narahara
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | | | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
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Sakaguchi Y, Natsume J, Kidokoro H, Tanaka M, Okai Y, Ito Y, Yamamoto H, Ohno A, Nakata T, Nakane T, Kawai H, Taoka T, Muramatsu H, Naganawa S, Takahashi Y. Change of White Matter Integrity in Children With Hematopoietic Stem Cell Transplantation. Pediatr Neurol 2020; 111:78-84. [PMID: 32951667 DOI: 10.1016/j.pediatrneurol.2020.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/11/2020] [Accepted: 06/13/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Advances in hematopoietic stem cell transplantation have improved the survival rate of malignant diseases and congenital immunodeficiencies. It has become important to assess long-term complications in survivors. To assess neurological abnormalities in children treated by transplantation, diffusion tensor imaging was performed. METHODS Forty children who underwent head diffusion tensor imaging before and after their first transplantation were enrolled. Patients with brain lesions on conventional MRI were excluded. Fractional anisotropy and mean diffusivity were compared between patients and 28 control subjects using tract-based spatial statistics. The Strengths and Difficulties Questionnaire was administered as a behavioral evaluation after transplantation, and diffusion tensor images of patients with and without behavioral abnormalities were compared. RESULTS The age of patients and controls was 0 to 19 years and 0 to 16 years, respectively. The date of diffusion tensor imaging was 10 to 57 days before and 40 to 153 days after transplantation. Tract-based spatial statistics showed fractional anisotropy reduction in widespread white matter in patients before and after transplantation. Mean diffusivity was high before transplantation and normalized after transplantation. Analysis comparing before and after hematopoietic stem cell transplantation shows no difference in fractional anisotropy and a higher mean diffusivity before hematopoietic stem cell transplantation. In patients with behavioral abnormalities, low fractional anisotropy and high mean diffusivity remained after transplantation. CONCLUSIONS Longitudinal diffusion tensor imaging showed white matter abnormalities in children without conventional MRI abnormalities, which were related to behavioral problems after transplantation. Diffusion tensor imaging is useful for behavioral assessment in children undergoing transplantation.
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Affiliation(s)
- Yoko Sakaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Brain and Mind Research Center, Nagoya University, Nagoya, Japan; Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | - Masaharu Tanaka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yu Okai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | - Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toshiki Nakane
- Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hisashi Kawai
- Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toshiaki Taoka
- Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinji Naganawa
- Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Suzuki T, Kidokoro H, Kubota T, Fukasawa T, Suzui R, Tsuji T, Kato T, Yamamoto H, Ohno A, Nakata T, Saitoh S, Okumura A, Natsume J. Transient cortical diffusion restriction in children immediately after prolonged febrile seizures. Eur J Paediatr Neurol 2020; 27:30-36. [PMID: 32473849 DOI: 10.1016/j.ejpn.2020.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 04/29/2020] [Accepted: 05/10/2020] [Indexed: 11/18/2022]
Abstract
AIM Little is known about acute febrile status epilepticus-induced injury of extrahippocampal structures. To clarify the presence and clinical significance of acute extrahippocampal injuries, we performed diffusion-weighted imaging (DWI) in children immediately after prolonged febrile seizure (PFS). METHOD We performed a retrospective cohort study in children younger than 6 years old who visited one of two hospitals due to PFSs between January 2013 and October 2018. PFS was defined as a febrile seizure that persisted for 15 min or longer. We collected brain DWI data within 6 h of the end of PFS. When the initial DWI detected an abnormality, a follow-up DWI was performed a few days later. RESULTS The study population consisted of 101 patients with PFSs. DWI was performed within 6 h in 51 patients, while the remaining 50 patients did not undergo imaging because of good recovery of consciousness. Restricted cortical diffusion was evident in 9 (18%) patients on initial DWI. All of them underwent DWI within 100 min after PFS. Restricted cortical diffusion was associated with male sex, asymmetrical PFS symptoms, and a shorter duration between the end of the seizure and DWI, but was not associated with seizure duration. All cortical abnormalities had resolved on follow-up DWI of these patients within 72 h after the initial imaging, but ipsilateral hippocampal hyperintensity appeared in one patient. All 9 patients with restricted cortical diffusion were finally diagnosed with PFS and discharged without sequelae. CONCLUSIONS Some children with PFSs exhibit transient restricted diffusion in the regional cortex on DWI performed immediately after the end of PFS. These transient diffusion changes were not associated with unfavorable epileptic sequelae or neuroimaging in the short-term.
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Affiliation(s)
- Takeshi Suzuki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | | | - Ryosuke Suzui
- Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan
| | - Takeshi Tsuji
- Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan
| | - Toru Kato
- Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinji Saitoh
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medicinal Sciences, Nagoya, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Kawaguchi M, Sassa T, Kidokoro H, Nakata T, Kato K, Muramatsu H, Okuno Y, Yamamoto H, Kaname T, Kihara A, Natsume J. Novel biallelic FA2H mutations in a Japanese boy with fatty acid hydroxylase-associated neurodegeneration. Brain Dev 2020; 42:217-221. [PMID: 31837835 DOI: 10.1016/j.braindev.2019.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 11/14/2019] [Accepted: 11/21/2019] [Indexed: 11/19/2022]
Abstract
FA2H encodes fatty acid 2-hydroxylase, which plays a significant role in maintaining the neuronal myelin sheath. Previous reports have revealed that a FA2H mutation leads to spastic paraplegia, leukodystrophy, and neurodegeneration with brain iron accumulation, collectively referred to as fatty acid hydroxylase-associated neurodegeneration (FAHN). The disease severity of FAHN varies among individual patients and may be explained by the enzyme activity of FA2H mutant proteins. Here we report a 10-year-old Japanese boy with FAHN having novel heterozygous mutations in FA2H. The patient presented with a spastic gait since the age of 5 years and was unable to walk without a cane by the time he was 8 years old. Brain MRI demonstrated a partial thinning of the corpus callosum, slight reduction of cerebellar volume, and posterior dominant periventricular leukodystrophy. Whole exome sequencing revealed two novel missense mutations in FA2H with compound heterozygous inheritance (NM_024306, p.Val149Leu, and p.His260Gln mutations). The enzyme activities of the p.Val149Leu and p.His260Gln variants were 60%-80% and almost 0%, respectively. Our cell-based enzyme assay demonstrated partial functionality for one of the variants, indicating a milder phenotype. However, considered along with previous reports, there was no definite relationship between the disease severity and residual enzyme activity measured using a similar method. Further research is needed to precisely predict the phenotypic severity of this disorder.
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Affiliation(s)
- Masahiro Kawaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takayuki Sassa
- Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kohji Kato
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yusuke Okuno
- Medical Genomics Center, Nagoya University Hospital, Nagoya, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tadashi Kaname
- Department of Genome Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Akio Kihara
- Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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27
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Tanaka M, Kidokoro H, Kubota T, Fukasawa T, Okai Y, Sakaguchi Y, Ito Y, Yamamoto H, Ohno A, Nakata T, Negoro T, Okumura A, Kato T, Watanabe K, Takahashi Y, Natsume J. Pseudo-sawtooth pattern on amplitude-integrated electroencephalography in neonatal hypoxic-ischemic encephalopathy. Pediatr Res 2020; 87:529-535. [PMID: 31493771 DOI: 10.1038/s41390-019-0567-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 08/08/2019] [Accepted: 08/16/2019] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The objective of this study was to describe a novel amplitude-integrated electroencephalography (aEEG) pattern in infants with hypoxic-ischemic encephalopathy (HIE) and to assess the clinical significance. METHODS The aEEG traces of infants with HIE who were treated with therapeutic hypothermia (TH) from 2012 to 2017 were analyzed. A pseudo-sawtooth (PST) pattern was defined as a periodic increase of the upper and/or lower margin of the trace on aEEG without showing seizure activities on conventional EEG (CEEG). RESULTS Of the 46 infants, 6 (13%) had the PST pattern. The PST pattern appeared following a flat trace or a continuous low-voltage pattern and was followed by a burst-suppression pattern. On CEEG, the PST pattern consists of alternating cycles of low-voltage irregular activities and almost flat tracing. The PST pattern was associated with neuroimaging abnormalities and with various degrees of neurodevelopmental outcomes. Positive predictive values of the PST or worse pattern for adverse outcomes were high at 12 h after birth. CONCLUSION A novel aEEG background pattern in infants with HIE was reported. The PST pattern likely indicates a suppressed background pattern and may be linked to unfavorable outcomes. Further multicenter validation study is needed to clarify its clinical significance.
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Affiliation(s)
- Masaharu Tanaka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | | | - Yu Okai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoko Sakaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tamiko Negoro
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | - Akihisa Okumura
- Department of Pediatrics, Aichi Medical University, Nagakute, Japan
| | - Toru Kato
- Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan
| | - Kazuyoshi Watanabe
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Ozawa H, Hoashi T, Nakata T, Shimada M, Ichikawa H. P37 Long-term outcomes of patients at risks for Fontan operation: role of temporary fenestration. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Purpose
Whereas fenestration at Fontan operation was reported to be effective for smooth initiation to Fontan circulation, subsequently developed aortopulmonary collateral arteries under the presence of remaining hypoxia were a matter of concern.So as our institutional policy, it is closed as much and early as possible (temporary fenestration). This study aimed to reveal long-term outcomes for patients at riskswho underwent Fontan operation with temporary fenestration.
Methods
Of 107 patients undergoing Fontan operation from 1995 to 2004, 79 patients (73.8%) were free from any risks (NR group) and 28 patients (26.2%) had risks for Fontan operation (R group). Hypoplastic left heart syndrome, heterotaxy syndrome with obstructive total anomalous of pulmonary venous connection, and individual cases with high preoperative pulmonary artery pressure (PAP), systemic ventricular end diastolic pressure (SVEDP) or low ejection fraction (SVEF) were defined as a risk for Fontan completion.Age at Fontan operation was older in R group (6.6 vs 2.3years-old, p = 0.0004). Preoperative PAP (12.8 vs 11.3mmHg, p = 0.03) and SVEDP (8.8 vs 7.1mmHg, p = 0.02) were higher and SVEF (53.7 vs 60.0%, p = 0.002) was lower in R group. Pulmonary vascular resistance (PVR) was not different. Fenestration was created in all patients in R group, then it was closed at the mean duration of 2.9 years after Fontan operation.
Results
Freedom from death or protein-losing enteropathy rate at 5, 10, and 15 years after Fontan operation were 97, 96, and 93% in NR group and 96, 93, and 86% in R group (log-rank: p = 0.20). Fifty-one patients (64.6%) in NR group and 17 patients (60.7%) in R group underwent serial catheter examinations at 5, 10, and 15 years after Fontan operation and exercise capacity testing at 15 years after Fontan operation (Figure). In R group, arterial oxygen saturation was lower and PVR was higher even after close of fenestration (Figure). In addition, 12 patients (71%) in R group developed significant veno-venous collaterals, which were defined by more than 3mm in diameter of collateral veins or a condition where pulmonary veins were contrasted in venography. On the contrary, cardiac index (CI), SVEDP, and PAP were not different and no significant difference on peak oxygen uptake and anaerobic threshold were observed between in 2 groups.
Conclusions
Although the mild cyanosis remained due to the development of veno-venous collaterals after the closure of temporary fenestration, CI, SVEDP and PAP well maintained in patients at risk for Fontan operation. These results might to lead acceptable life prognosis and freedom fromprotein-losing enteropathy rate for patients at risk for Fontan operation.
Abstract P37 Figure
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Affiliation(s)
- H Ozawa
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - T Hoashi
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - T Nakata
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - M Shimada
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - H Ichikawa
- National Cerebral & Cardiovascular Center, Suita, Japan
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29
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Toba H, Yamaoka A, Sakurai S, Tanaka Y, Miyamoto A, Nessa N, Watanabe Y, Kobara M, Nakata T. P713Short term treatment of a low dose erythropoietin improves vascular function in a rat model of insulin resistance. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
Erythropoietin (EPO) exerts haematopoiesis-independent cardiovascular and renal protective effects by binding to EPO receptors expressed in hearts, arteries, and kidneys. We have reported that EPO inhibits vascular and renal injury in rat models of hypertension and type 1 diabetes. Recent studies report that EPO improves glucose tolerance in insulin resistant animals.
Purpose
This study investigated whether EPO would inhibit vascular and renal dysfunction in the setting of insulin resistance.
Methods
Rats were treated with sucrose (12% in drinking water) for 10 weeks to induce insulin resistance. EPO (3 times/week, s.c) was administered at the dose of 150U/kg for 10 weeks from the beginning (group A) or at the dose of 75U/kg for the last 4 weeks (group B) of sucrose treatment. Blood pressure was measured every second week by the tail-cuff method. HOMA-IR, haematocrit, and urinary protein excretion were measured. Using isolated aortas, acetylcholine-induced vasorelaxation under phenylephrine-induced pre-contraction was examined. Aortic sections were stained with haematoxylin-eosin.
Results
Both groups A and B showed higher haematocrit levels compared with the control and sucrose alone-treated groups. Sucrose treatment increased HOMA-IR (7.7±2.0 vs. 24±4.5, p<0.05), which was attenuated in groups A (3.6±0.9) and B (9.7±4.0). EPO treatment (150U/kg) had no effects on blood pressure for the first 4 weeks but caused time-dependent increases in blood pressure from the 6th week. Increased proteinuria and impaired aortic vasorelaxation in sucrose-treated rats were exacerbated by EPO (150U/kg) maybe because of hypertension (Control 122±2mmHg, Sucrose 125±2mmHg, group A 148±5mmHg), one of the major side effects of EPO. According to these results, we treated a half dose of EPO only for the last 4 weeks (group B). A lower dose of EPO treatment for a shorter period did not increase proteinuria (Control 15±2mg/day, Sucrose 25±3mg/day, group B 24±3mg/day) despite a mild increase in blood pressure (132±2mmHg). Impaired endothelium-dependent vasodilation and aortic thickening in the aorta of sucrose alone-treated rats were attenuated by lower and shorter EPO treatment (group B).
Conclusions
EPO inhibited insulin resistance and vascular injury in sucrose-induced insulin resistant rats. Further investigation into the mechanisms of tissue protective effects of EPO, especially focusing on the effects on insulin signalling in not only hepatic and muscle cell but also vascular and renal cells, will be needed.
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Affiliation(s)
- H Toba
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - A Yamaoka
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - S Sakurai
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - Y Tanaka
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - A Miyamoto
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - N Nessa
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - Y Watanabe
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - M Kobara
- Kyoto Pharmaceutical University, Kyoto, Japan
| | - T Nakata
- Kyoto Pharmaceutical University, Kyoto, Japan
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Kobara M, Naseratun N, Watanabe Y, Toba H, Nakata T. P6275Role of autophagy in imatinib-induced cardiotoxicity. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Cardiotoxicity is one of the severe adverse effects of chemotherapeutic agents. Imatinib, a therapeutic agent for chronic myelogenous leukemia, has been reported to induce cardiotoxicity. Autophagy is an intracellular bulk protein and organelle degradation process, but it is unclear whether autophagy functions as pro-death or pro-survival program during disease conditions. We examined whether imatinib induces myocyte autophagy and the role of autophagy in imatinib-induced cardiotoxicity in in vitro and in vivo experiments.
Methods
In in vitro experiments, neonatal rat cardiac myocytes were treated with imatinib (1, 5, 10 μM; 1–6 hrs). Inhibition of autophagy was performed using 3-methyl-adenine (3MA), an autophagic inhibitor, and transfection with Atg5-targeted siRNA. Myocyte apoptosis was detected by morphological change in nuclei and caspase 3 activity. Mitochondria-derived reactive oxygen species production was detected using MitoSOX and mitochondrial membrane potential was assessed by TMRM staining. Expressions of cytochrome c in mitochondria and cytosole were examined by Werstern blotting. Myocyte autophagy was assessed by monodansylcadaverine staining and microtubule-associated protein light chain (LC) 3-II expression. In in vivo experiments, C57BL6 mice were treated with imatinib (50 and 200 mg/kg/day) for 5 weeks in the presence or absence of 3MA. Cardiac function was examined by echocardiography. In cardiac tissue, apoptotic myocytes were examined by TUNEL assay and autophagy was examined by LC3-II expression.
Results
In in vitro experiments, imatinib increased apoptotic nuclei and caspase 3 activity, in a dose-dependent manner. Consequently, imatinib augmented production of mitochondria-derived reactive oxygen species, loss of mitochondrial membrane potential, and the release of cytochrome c from mitochondria to cytosole, suggesting that imatinib induced mitochondrial-apoptotic pathway. On the other hand, imatinib significantly increased monodansylcadaverine stained dots and LC3-II expression, suggesting that imatinib increased autophagy. 3MA and Atg5 siRNA augmented imatinib-induced apoptosis by 60% and 30%, respectively. In in vivo experiments, imatinib (200 mg) exhibited the dilatation of left ventricle by 15% and the depression of left ventricular fractional shortening by 23%. Ratio of apoptotic myocytes was significantly increased and LC3-II expression in cardiac tissue was enhanced by imatinib in a dose-dependent fashion. Co-treatment with 3MA and imatinib further impaired imatinib-induced myocyte apoptosis by 3 fold and LV dysfunction by 20%.
Conclusion
These results indicate that imatinib induced myocyte apoptosis, leading to cardiac dysfunction. Imatinib enhanced myocyte autophagy as a consequence of apoptosis and autophagy was a beneficial phenomenon in this condition.
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Affiliation(s)
- M Kobara
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - N Naseratun
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - Y Watanabe
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - H Toba
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - T Nakata
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
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Kobara M, Naseratun N, Watanabe Y, Toba H, Nakata T. P1603Nicorandil suppresses ischemia-induced cardiac interstitial norepinephrine enhancement and ventricular arrhythmia in hypertrophic hearts. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Myocardial infarction (MI) is a major cause of death in western countries and Japan, and hypertension is a major risk factor of MI. In hypertensive heart, acute myocardial infarction often leads to lethal ventricular arrhythmia. Nicorandil, an ATP sensitive potassium channel (KATP) opener, is usually used in the treatment of acute myocardial infarction. The effects of nicorandil on ischemic myocyte are fully defined. On the other hand, KATP in neuroterminals is known to regulate norepinephrine release, but the effect of nicorandil on ischemic norepinephrine release in cardiac tissue has remained unexplored.
Purpose
We examined whether nicorandil suppressed norepinephrine release via neuronal KATP and ventricular arrhythmia during acute ischemia in pressure overload-induced hypertrophic hearts.
Methods
SD Rats were divided into two groups; abdominal aortic constriction (AAC) group and sham-operated (Sham) group. Four weeks after constriction, cardiac geometry and function were examined using echocardiography. Then, myocardial ischemia was induced by the left anterior descending artery occlusion for 100 minutes in the presence or absence of intravenous infusion of nicorandil. Cardiac interstitial norepinephrine concentration in ischemic region was measured using the microdialysis method and concentration of cyclic AMP, a second messenger of norepinephrine, in cardiac tissue was measured by ELISA. Ventricular arrhythmias were monitered by ECG during whole ischemic period.
Results
Four weeks after constriction, remarkable left ventricular wall thickening was observed in AAC group. Before ischemia, ventricular arrhythmia was not found in both groups. Number of ventricular arrhythmia, including ventricular tachycardia and ventricular fibrillation, was increased in early ischemic period (- 40 min) in both groups, and was grater in AAC group. Before ischemia, interstitial norepinephrine concentration in cardiac tissue was higher level in AAC group than in Sham group. Ischemia obviously increased norepinephrine concentration in both groups time dependently and AAC further increased norepinephrine than Sham group. Concentration of cyclic AMP in cardiac tissue was raised in early ischemic period (- 40 min) and then gradually decreased. Nicorandil significantly suppressed the number of ventricular arrhythmias, and abolished the ventricular tachycardia and fibrillation without hemodynamic alterations. Nicorandil also attenuated norepinephrine and cAMP enhancement in acute ischemic period in both groups.
Conclusion
Ischemia-induced ventricular arrhythmia was more frequent and severe in hypertrophic hearts and interstitial norepinephrine enhancement may play a role in this ischemic arrhythmia. Nicorandil suppressed ischemia-induced interstitial norepinephrine release by neuronal KATP opening, which attenuated ventricular arrhythmias in normal and hypertrophic hearts.
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Affiliation(s)
- M Kobara
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - N Naseratun
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - Y Watanabe
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - H Toba
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
| | - T Nakata
- Kyoto Pharmaceutical University, Department of Clinical Pharmacology, Kyoto, Japan
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Yokoi S, Kidokoro H, Yamamoto H, Ohno A, Nakata T, Kubota T, Tsuji T, Morishita M, Kawabe T, Naiki M, Maruyama K, Itomi K, Kato T, Ito K, Natsume J. Hippocampal diffusion abnormality after febrile status epilepticus is related to subsequent epilepsy. Epilepsia 2019; 60:1306-1316. [DOI: 10.1111/epi.16059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 05/12/2019] [Accepted: 05/13/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Setsuri Yokoi
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
- Brain and Mind Research Center Nagoya University Nagoya Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Atsuko Ohno
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Tomohiko Nakata
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
| | - Tetsuo Kubota
- Department of Pediatrics Anjo Kosei Hospital Anjo Japan
| | - Takeshi Tsuji
- Department of Pediatrics Okazaki City Hospital Okazaki Japan
| | | | - Takashi Kawabe
- Department of Pediatrics Kasugai Municipal Hospital Kasugai Japan
| | - Misako Naiki
- Department of Pediatrics Kasugai Municipal Hospital Kasugai Japan
| | - Koichi Maruyama
- Department of Pediatric Neurology Aichi Prefectural Colony Central Hospital Kasugai Japan
| | - Kazuya Itomi
- Department of Neurology Aichi Children's Health and Medical Center Obu Japan
| | - Toru Kato
- Department of Pediatrics Okazaki City Hospital Okazaki Japan
| | - Komei Ito
- Department of Allergology Aichi Children's Health and Medical Center Obu Japan
| | - Jun Natsume
- Department of Pediatrics Nagoya University Graduate School of Medicine Nagoya Japan
- Brain and Mind Research Center Nagoya University Nagoya Japan
- Department of Pediatrics Japanese Red Cross Nagoya First Hospital Nagoya Japan
- Department of Developmental Disability Medicine Nagoya University Graduate School of Medicine Nagoya Japan
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Nakajima K, Nakata T, Matsuo S, Doi T, Jacobson A. 239Machine learning model for predicting sudden cardiac death and heart failure death using 123I-metaiodobenzylguanidine. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez145.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Nakajima
- Kanazawa University Hospital, Kanazawa, Japan
| | - T Nakata
- Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - S Matsuo
- Kanazawa University Hospital, Kanazawa, Japan
| | - T Doi
- Teine Keijinkai Hospital, Sapporo, Japan
| | - A Jacobson
- Diagram Consulting, Kihei, United States of America
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Sakaguchi Y, Kidokoro H, Ogawa C, Okai Y, Ito Y, Yamamoto H, Ohno A, Nakata T, Tsuji T, Nakane T, Kawai H, Kato K, Naganawa S, Natsume J. Longitudinal Findings of MRI and PET in West Syndrome with Subtle Focal Cortical Dysplasia. AJNR Am J Neuroradiol 2018; 39:1932-1937. [PMID: 30213810 DOI: 10.3174/ajnr.a5772] [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: 04/23/2018] [Accepted: 07/08/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Despite the development of neuroimaging, identification of focal cortical dysplasia remains challenging. The purpose of this study was to show the longitudinal changes of MR imaging and FDG-PET in patients with West syndrome and subtle focal cortical dysplasia. MATERIALS AND METHODS Among 52 consecutive patients with West syndrome, 4 were diagnosed with subtle focal cortical dysplasia on 3T MR imaging. MR imaging and PET findings were evaluated longitudinally at onset and at 12 and 24 months of age. RESULTS At the onset of West syndrome, MR imaging demonstrated focal signal abnormalities of the subcortical white matter in 2 patients. In the other 2 patients, focal subcortical high-intensity signals became visible on follow-up T2WI as myelination progressed. PET at onset showed focal cortical hypometabolism in 3 patients, with 1 of these patients also having focal hypermetabolism and 1 having normal findings. On PET at 24 months, hypometabolism persisted in 2 patients and disappeared in 1, and hypermetabolism disappeared in 1. In 1 patient with normal MR imaging and PET findings at onset, focal hyperintensity and hypometabolism first appeared at 24 months of age. The findings on MR imaging and PET in these patients evolved differently with brain maturation and the clinical course. CONCLUSIONS Subtle focal cortical dysplasia can be undetectable on MR imaging at the onset of West syndrome and is not always accompanied by hypometabolism or hypermetabolism on PET. Longitudinal MR imaging and PET studies may be useful for detecting such lesions. Even in West syndrome with a congenital structural abnormality, PET findings evolve differently with brain maturation and the clinical condition.
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Affiliation(s)
- Y Sakaguchi
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.)
| | - H Kidokoro
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.).,Brain and Mind Research Center (H. Kidokoro, Y.I., H.Y., H. Kawai, S.N., J.N.), Nagoya University, Nagoya, Japan
| | - C Ogawa
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.)
| | - Y Okai
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.)
| | - Y Ito
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.).,Brain and Mind Research Center (H. Kidokoro, Y.I., H.Y., H. Kawai, S.N., J.N.), Nagoya University, Nagoya, Japan
| | - H Yamamoto
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.).,Brain and Mind Research Center (H. Kidokoro, Y.I., H.Y., H. Kawai, S.N., J.N.), Nagoya University, Nagoya, Japan
| | - A Ohno
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.)
| | - T Nakata
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.)
| | - T Tsuji
- Department of Pediatrics (T.T.), Okazaki City Hospital, Okazaki, Japan
| | - T Nakane
- Radiology (T. Nakane, H. Kawai, S.N.)
| | - H Kawai
- Radiology (T. Nakane, H. Kawai, S.N.).,Brain and Mind Research Center (H. Kidokoro, Y.I., H.Y., H. Kawai, S.N., J.N.), Nagoya University, Nagoya, Japan
| | - K Kato
- Radiological and Medical Laboratory Sciences (K.K.)
| | - S Naganawa
- Radiology (T. Nakane, H. Kawai, S.N.).,Brain and Mind Research Center (H. Kidokoro, Y.I., H.Y., H. Kawai, S.N., J.N.), Nagoya University, Nagoya, Japan
| | - J Natsume
- From the Departments of Pediatrics (Y.S., H. Kidokoro, C.O., Y.O., Y.I., H.Y., A.O., T. Nakata, J.N.) .,Developmental Disability Medicine (J.N.), Nagoya University Graduate School of Medicine, Nagoya, Japan.,Brain and Mind Research Center (H. Kidokoro, Y.I., H.Y., H. Kawai, S.N., J.N.), Nagoya University, Nagoya, Japan
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Yamagata Y, Ikeda S, Nakata T, Yonekura T, Eguchi M, Koga S, Muroya T, Koide Y, Kawano H, Yao T, Seko Y, Maemura K. P1632Oxidative stress-responsive apoptosis inducing protein (ORAIP), a new oxidative stress marker, is associated with pulmonary hemodynamics in chronic thromboembolic pulmonary hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Yamagata
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - S Ikeda
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - T Nakata
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - T Yonekura
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - M Eguchi
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - S Koga
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - T Muroya
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - Y Koide
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - H Kawano
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
| | - T Yao
- Institute for Adult Diseases, Division of Cardiovascular Medicine, Tokyo, Japan
| | - Y Seko
- Juntendo University School of Medicine, Department of Biofunctional Microbiota, Tokyo, Japan
| | - K Maemura
- Nagasaki University Hospital, Department of cardiovascular medicine, Nagasaki, Japan
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Fukuoka S, Kurita T, Dohi K, Takasaki A, Nakata T, Fujimoto N, Masuda J, Hoshino K, Tanigawa T, Fujii E, Koyabu S, Ito M. P3660Clinical usefulness of instantaneous wave-free ratio for evaluation of coronary artery lesion with prior myocardial infarction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Fukuoka
- Mie University Hospital, Cardiology, Tsu, Japan
| | - T Kurita
- Mie University Hospital, Cardiology, Tsu, Japan
| | - K Dohi
- Mie University Hospital, Cardiology, Tsu, Japan
| | - A Takasaki
- Matsusaka General Hospital, Cardiology, Matsusaka, Japan
| | - T Nakata
- Mie Prefecture General Medical Center, Cardiology, Yokkaichi, Japan
| | - N Fujimoto
- Mie University Hospital, Cardiology, Tsu, Japan
| | - J Masuda
- Mie University Hospital, Cardiology, Tsu, Japan
| | - K Hoshino
- Nagai Hospital, Cardiology, Tsu, Japan
| | - T Tanigawa
- Matsusaka General Hospital, Cardiology, Matsusaka, Japan
| | - E Fujii
- Mie University Hospital, Cardiology, Tsu, Japan
| | - S Koyabu
- Owase General Hospital, Cardiology, Owase, Japan
| | - M Ito
- Mie University Hospital, Cardiology, Tsu, Japan
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Isshiki A, Ito H, Nakato T, Nakata T, Inokuchi T, Inoue Y, Sasaki O, Nishioka T, Yoshimoto N. 57Prognosis of Patients with Vasospastic Angina Resuscitated from Cardiac Arrest. Europace 2018. [DOI: 10.1093/europace/euy015.019] [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: 11/14/2022] Open
Affiliation(s)
- A Isshiki
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - H Ito
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - T Nakato
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - T Nakata
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - T Inokuchi
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - Y Inoue
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - O Sasaki
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - T Nishioka
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
| | - N Yoshimoto
- Saitama Medical center, Saitama Medical University, Department of Cardiology, Kawagoe, Saitama, Japan
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Ogawa C, Kidokoro H, Fukasawa T, Yamamoto H, Ishihara N, Ito Y, Sakaguchi Y, Okai Y, Ohno A, Nakata T, Azuma Y, Hattori A, Kubota T, Tsuji T, Hirakawa A, Kawai H, Natsume J. Cytotoxic edema at onset in West syndrome of unknown etiology: A longitudinal diffusion tensor imaging study. Epilepsia 2018; 59:440-448. [PMID: 29315514 DOI: 10.1111/epi.13988] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To clarify longitudinal changes in white matter microstructures from the onset of disease in patients with West syndrome (WS) of unknown etiology. METHODS Diffusion tensor imaging (DTI) was prospectively performed at onset and at 12 and 24 months old in 17 children with WS of unknown etiology. DTI was analyzed using tract-based spatial statistics (TBSS) and tract-specific analysis (TSA) of 13 fiber tracts, and fractional anisotropy (FA) and mean diffusivity (MD) were compared with those of 42 age-matched controls. Correlations of FA and MD with developmental quotient (DQ) at age 24 months were analyzed. Multiple comparisons were adjusted for using the false discovery rate (q-value). RESULTS TBSS analysis at onset showed higher FA and lower MD in the corpus callosum and brainstem in patients. TSA showed lower MD in bilateral uncinate fasciculi (UF) (right: q < 0.001; left: q = 0.03) at onset in patients. TBSS showed a negative correlation between FA at onset and DQ in the right frontal lobe, whereas FA at 24 months old exhibited a positive correlation with DQ in the diffuse white matter. MD for bilateral UF at 24 months old on TSA correlated positively with DQ (q = 0.04, both). SIGNIFICANCE These findings may indicate the existence of cytotoxic edema in the immature white matter and dorsal brainstem at onset, and subsequent alterations in the diffuse white matter in WS of unknown etiology. Microstructural development in the UF might play important roles in cognitive development in WS.
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Affiliation(s)
- Chikako Ogawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Brain and Mind Research Center, Nagoya University, Nagoya, Japan
| | | | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoko Ishihara
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoko Sakaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yu Okai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiteru Azuma
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ayako Hattori
- Department of Pediatrics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tetsuo Kubota
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Japan
| | - Takeshi Tsuji
- Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan
| | - Akihiro Hirakawa
- Department of Biostatistics and Bioinformatics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hisashi Kawai
- Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Brain and Mind Research Center, Nagoya University, Nagoya, Japan.,Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Ban H, Sugimoto M, Otsuka T, Murata M, Nakata T, Hasegawa H, Fukuda M, Inatomi O, Bamba S, Kushima R, Andoh A. Letter: a potassium-competitive acid blocker vs a proton pump inhibitor for healing endoscopic submucosal dissection-induced artificial ulcers after treatment of gastric neoplasms. Aliment Pharmacol Ther 2017; 46:564-565. [PMID: 28776744 DOI: 10.1111/apt.14202] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- H Ban
- Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu, Japan
| | - M Sugimoto
- Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu, Japan
| | - T Otsuka
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - M Murata
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - T Nakata
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - H Hasegawa
- Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu, Japan
| | - M Fukuda
- Department of Clinical Laboratory Medicine, Shiga University of Medical Science Hospital, Otsu, Japan
| | - O Inatomi
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - S Bamba
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
| | - R Kushima
- Department of Clinical Laboratory Medicine, Shiga University of Medical Science Hospital, Otsu, Japan
| | - A Andoh
- Department of Gastroenterology, Shiga University of Medical Science Hospital, Otsu, Japan
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40
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Nakata T, Nakata M. THE RELATIONSHIP BETWEEN SOCIAL SUPPORT AND DISTANCE TO THE PARENTS’ HOUSE IN JAPAN. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4297] [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: 11/13/2022] Open
Affiliation(s)
- T. Nakata
- Hokusei Gakuen University, Sapporo, Japan,
| | - M. Nakata
- Sapporo Gakuin University, Sapporo, Japan
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41
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Shiba K, Tanigawa H, Hirose T, Nakata T. Development of the Toughness-Improved Reduced-Activation F82H Steel for DEMO Reactor. Fusion Science and Technology 2017. [DOI: 10.13182/fst12-a14127] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Shiba
- Japan Atomic Energy Agency, Tokai, Ibaraki, Japan
| | - H. Tanigawa
- Japan Atomic Energy Agency, Rokkasho, Aomori, Japan
| | - T. Hirose
- Japan Atomic Energy Agency, Naka, Ibaraki, Japan
| | - T. Nakata
- Japan Atomic Energy Agency, Rokkasho, Aomori, Japan
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Ito Y, Kidokoro H, Negoro T, Tanaka M, Okai Y, Sakaguchi Y, Ogawa C, Takeuchi T, Ohno A, Yamamoto H, Nakata T, Maesawa S, Watanabe K, Takahashi Y, Natsume J. Paroxysmal nonepileptic events in children with epilepsy. Epilepsy Res 2017; 132:59-63. [PMID: 28315806 DOI: 10.1016/j.eplepsyres.2017.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 02/10/2017] [Accepted: 02/23/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The aim of this study was to clarify the characteristics of paroxysmal nonepileptic events (PNEs) suspected as being epileptic seizures by families of children with epilepsy. METHODS The video-EEG (vEEG) recordings of habitual paroxysmal events in children with epilepsy at Nagoya University Hospital between October 2006 and January 2016 were reviewed. Based on the doctor's suspicion before the vEEG, the PNEs were divided into two groups that included PNEs suspected as epileptic seizures and PNEs suspected as PNEs. PNEs in the former group were classified based on the suspected seizure type. RESULTS Of 886 habitual paroxysmal events, vEEG confirmed that 83 events (68 children) were PNEs. The median age of the 68 children was 3.2 years. Concurrent epilepsies included focal epilepsies (n=33), infantile spasms (n=16), and other types (n=19). The most common types of PNEs were sleep myoclonus (n=11), followed by stereotypies (n=9), awake myoclonus (n=8), paroxysmal ocular deviations (PODs, n=8), and tonic posturing (n=8). Even after direct observation or video viewing, the doctors suspected epileptic seizures in all three of the PODs and two of the tonic posturing children. Before the vEEG, however, the accurate visual information led to the speculation that the four psychogenic and two sleep myoclonus events were all PNEs. Myoclonus, stereotypies, and head drops were often misdiagnosed as epileptic spasms, while PODs and tonic posturing were often misdiagnosed as focal seizures with motor components. Additionally, staring and motion arrest during a drowsy state were often misdiagnosed as focal dyscognitive seizures. Seven of eight patients with PODs had epileptic spasms that were concurrent with epileptic seizures. A diffuse cerebral lesion or reduced visual acuity was seen in seven patients with PODs. CONCLUSION We re-emphasize that vEEG is essential for accurate diagnosis and provides evidence for listing POD in the differential diagnosis of oculomotor paroxysmal events.
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Affiliation(s)
- Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan; Brain & Mind Research Center, Nagoya University, Aichi, Japan
| | - Hiroyuki Kidokoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan; Brain & Mind Research Center, Nagoya University, Aichi, Japan
| | - Tamiko Negoro
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Masaharu Tanaka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Yu Okai
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Yoko Sakaguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Chikako Ogawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Tomoya Takeuchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Atsuko Ohno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Hiroyuki Yamamoto
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Satoshi Maesawa
- Brain & Mind Research Center, Nagoya University, Aichi, Japan
| | - Kazuyoshi Watanabe
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Yoshiyuki Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan; Brain & Mind Research Center, Nagoya University, Aichi, Japan.
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Shoji A, Aris-Brosou S, Culina A, Fayet A, Kirk H, Padget O, Juarez-Martinez I, Boyle D, Nakata T, Perrins CM, Guilford T. Breeding phenology and winter activity predict subsequent breeding success in a trans-global migratory seabird. Biol Lett 2016; 11:rsbl.2015.0671. [PMID: 26510674 PMCID: PMC4650180 DOI: 10.1098/rsbl.2015.0671] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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] [Indexed: 11/23/2022] Open
Abstract
Inter-seasonal events are believed to connect and affect reproductive performance (RP) in animals. However, much remains unknown about such carry-over effects (COEs), in particular how behaviour patterns during highly mobile life-history stages, such as migration, affect RP. To address this question, we measured at-sea behaviour in a long-lived migratory seabird, the Manx shearwater (Puffinus puffinus) and obtained data for individual migration cycles over 5 years, by tracking with geolocator/immersion loggers, along with 6 years of RP data. We found that individual breeding and non-breeding phenology correlated with subsequent RP, with birds hyperactive during winter more likely to fail to reproduce. Furthermore, parental investment during one year influenced breeding success during the next, a COE reflecting the trade-off between current and future RP. Our results suggest that different life-history stages interact to influence RP in the next breeding season, so that behaviour patterns during winter may be important determinants of variation in subsequent fitness among individuals.
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Affiliation(s)
- A Shoji
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - S Aris-Brosou
- Department of Mathematics and Statistics, University of Ottawa, Ottawa, Canada K1N 6N5
| | - A Culina
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - A Fayet
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - H Kirk
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - O Padget
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - I Juarez-Martinez
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - D Boyle
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - T Nakata
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - C M Perrins
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - T Guilford
- Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
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44
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Hattori T, Minami M, Narita K, Nakata T, Itomi S, Kubota K, Oya T, Nishiyama H, Kato H, Yuasa N. Recurrent bacteremia with different strains of Streptococcus pyogenes in an immunocompromised child. J Infect Chemother 2016; 22:421-3. [PMID: 26846458 DOI: 10.1016/j.jiac.2015.12.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/16/2015] [Accepted: 12/25/2015] [Indexed: 10/22/2022]
Abstract
We report an immunocompromised child who experienced two episodes of bacteremia due to Streptococcus pyogenes. Random amplification of polymorphic DNA profiles, emm genotypes, superantigen profiles, antimicrobial susceptibility, and resistance-related genes were investigated, and the results showed different profiles between the two isolates. This is the first report describing recurrent bacteremia caused by different strains of S. pyogenes.
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Affiliation(s)
- Takuya Hattori
- Department of Clinical Laboratory, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan.
| | - Masaaki Minami
- Department of Bacteriology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Kotaro Narita
- Department of Pediatrics, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Tomohiko Nakata
- Department of Pediatrics, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Seiko Itomi
- Department of Pediatrics, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Kinya Kubota
- Department of Pediatric Cardiology, Social Insurance Chukyo Hospital, Nagoya, Japan
| | - Teruaki Oya
- Department of Clinical Laboratory, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Hideki Nishiyama
- Department of Clinical Laboratory, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Hideki Kato
- Department of Clinical Laboratory, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Norihiro Yuasa
- Department of Clinical Laboratory, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
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Hashimoto A, Nakata T, Moroi M, Tamaki N, Nishimura T, Hasebe N, Kikuchi K, Salgado C, Jimenez-Heffernan A, Lopez-Martin J, Ramos-Font C, Sanchez De Mora E, Rivera F, Lopez-Aguilar R, Martinez A, Manovel A, Soriano E, Mushtaq S, Pontone G, Bertella E, Conte E, Segurini C, Volpato V, Beltrama V, Pepi M, Annoni A, Andreini D, Leen A, Scholte A, De Graaf M, Van Den Hoogen I, Kharagjitsingh A, Wolterbeek R, Kroft L, Jukema J, Bax J, Piccinelli M, Santana C, Sirineni G, Cooke C, Aguade Bruix S, Keidar Z, Frenkel A, Israel O, Candell Riera J, Garcia E, Sharma A, Bajwa A, Bhatnagar U, Thompson E, Patil S, Thompson R, Khoorshed A, Spencer F, Farncombe T, Tandon V, Singnurkar A, Gulenchyn K, Benito Gonzalez TF, Delgado Sanchez-Gracian C, Trinidad Lopez C, Mera Fernandez D, Villanueva Campos AM, Bustos Fiore A, Alonso Fernandez V, Mayorga Bajo A, Martinez Paz E, Iglesias Garriz I. Moderated Poster Session 1: Sunday 3 May 2015, 10:00-11:00 * Room: Moderated Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Pellegrino T, Petretta M, Boemio A, Piscopo V, Carotenuto R, Russo B, Pellegrino S, De Matteis G, Cuocolo A, Ryzhkova DV, Kostina I, Azevedo Coutinho M, Cortez-Dias N, Cantinho G, Guimaraes T, Silva G, Menezes M, Francisco A, Placido R, Conceicao I, Pinto F, Nakajima K, Nakata T, Matsuo S, Jacobson A, Paterson CA, Al Jabri AJ, Robinson J, Martin W, Reid S, Smith SA, Harms H, Tolbod L, Kero T, Bouchelouche K, Frokiaer J, Sorensen J, Matsuo S, Nakajima K, Kinuya S, Yamagishi M. Moderated Poster Session 3: Monday 4 May 2015, 10:00-11:00 * Room: Moderated Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Azuma Y, Nakata T, Tanaka M, Shen XM, Ito M, Iwata S, Okuno T, Nomura Y, Ando N, Ishigaki K, Ohkawara B, Masuda A, Natsume J, Kojima S, Sokabe M, Ohno K. Congenital myasthenic syndrome in Japan: ethnically unique mutations in muscle nicotinic acetylcholine receptor subunits. Neuromuscul Disord 2015; 25:60-9. [PMID: 25264167 DOI: 10.1016/j.nmd.2014.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/09/2014] [Accepted: 09/03/2014] [Indexed: 11/22/2022]
Abstract
Congenital myasthenic syndromes (CMS) are caused by mutations in genes expressed at the neuromuscular junction. Most CMS patients have been reported in Western and Middle Eastern countries, and only four patients with COLQ mutations have been reported in Japan. We here report six mutations in acetylcholine receptor (AChR) subunit genes in five Japanese patients. Five mutations are novel, and one mutation is shared with a European American patient but with a different haplotype. Among the observed mutations, p.Thr284Pro (p.Thr264Pro according to the legacy annotation) in the epsilon subunit causes a slow-channel CMS. Five other mutations in the delta and epsilon subunits are splice site, frameshift, null, or missense mutations causing endplate AChR deficiency. We also found a heteroallelic p.Met465Thr in the beta subunit in another patient. p.Met465Thr, however, was likely to be polymorphism, because single channel recordings showed mild shortening of channel openings without affecting cell surface expression of AChR, and the minor allelic frequency of p.Met465Thr was 5.1% in the Japanese population. Lack of shared mutant alleles between the Japanese and the other patients suggests that most mutations described here are ethnically unique or de novo in each family.
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Affiliation(s)
- Yoshiteru Azuma
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiko Nakata
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Motoki Tanaka
- Department of Physiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Xin-Ming Shen
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Mikako Ito
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoshi Iwata
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tatsuya Okuno
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Naoki Ando
- Department of Pediatrics, Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Ishigaki
- Department of Pediatrics, Tokyo Women's Medical University, Tokyo, Japan
| | - Bisei Ohkawara
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akio Masuda
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Seiji Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahiro Sokabe
- Department of Physiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kinji Ohno
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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Sciancalepore AG, Sallustio F, Girardo S, Passione LG, Camposeo A, Mele E, Di Lorenzo M, Costantino V, Schena FP, Pisignano D, Casino FG, Mostacci SD, Di Carlo M, Sabato A, Procida C, Creput C, Vanholder R, Stolear JC, Lefrancois G, Hanoy M, Nortier J, Potier J, Sereni L, Ferraresi M, Pereno A, Nazha M, Barbero S, Piccoli GB, Ficheux A, Gayrard N, Duranton F, Guzman C, Szwarc I, Bismuth -Mondolfo J, Brunet P, Servel MF, Argiles A, Bernardo A, Demers J, Hutchcraft A, Marbury TC, Minkus M, Muller M, Stallard R, Culleton B, Krieter DH, Korner T, Devine E, Ruth M, Jankowski J, Wanner C, Lemke HD, Surace A, Rovatti P, Steckiph D, Mancini E, Santoro A, Leypoldt JK, Agar BU, Bernardo A, Culleton BF, Vankova S, Havlin J, Klomp DJ, Van Beijnum F, Day JPR, Wieringa FP, Kooman JP, Gremmels H, Hazenbrink DH, Simonis F, Otten ML, Wester M, Boer WH, Joles JA, Gerritsen KG, Umimoto K, Shimamoto Y, Mastushima K, Miyata M, Muller M, Naik A, Pokropinski S, Bairstow S, Svatek J, Young S, Johnson R, Bernardo A, Rikker C, Juhasz E, Gaspar R, Rosivall L, Rusu E, Zilisteanu D, Balanica S, Achim C, Atasie T, Carstea F, Voiculescu M, Monzon Vazquez T, Saiz Garcia S, Mathani V, Escamilla Cabrera B, Cornelis T, Van Der Sande FM, Eloot S, Cardinaels E, Bekers O, Damoiseaux J, Leunissen KM, Kooman J, Baamonde Laborda E, Bosch Benitez-Parodi E, Perez Suarez G, Anton Perez G, Batista Garcia F, Lago Alonso M, Garcia Canton C, Hashimoto S, Seki M, Tomochika M, Yamamoto R, Okamoto N, Nishikawa A, Koike T, Ravagli E, Maldini L, Badiali F, Perazzini C, Lanciotti G, Steckiph D, Surace A, Rovatti P, Severi S, Rigotti A, McFarlane P, Marticorena R, Dacouris N, Pauly R, Nikitin S, Amdahl M, Bernardo A, Culleton B, Calabrese G, Mancuso D, Mazzotta A, Vagelli G, Balenzano C, Steckiph D, Bertucci A, Della Volpe M, Gonella M, Uchida T, Ando K, Kofuji M, Higuchi T, Momose N, Ito K, Ueda Y, Miyazawa H, Kaku Y, Nabata A, Hoshino T, Mori H, Yoshida I, Ookawara S, Tabei K, Umimoto K, Suyama M, Shimamoto Y, Miyata M, Kamada A, Sakai R, Minakawa A, Fukudome K, Hisanaga S, Ishihara T, Yamada K, Fukunaga S, Inagaki H, Tanaka C, Sato Y, Fujimoto S, Potier J, Bouet J, Queffeulou G, Bell R, Nolin L, Pichette V, Provencher H, Lamarche C, Nadeau-Fredette AC, Ouellet G, Leblanc M, Bezzaoucha S, Kouidmir Y, Kassis J, Alonso ML, Lafrance JP, Vallee M, Fils J, Mailley P, Cantaluppi V, Medica D, Quercia AD, Dellepiane S, Ferrario S, Gai M, Leonardi G, Guarena C, Caiazzo M, Biancone L, Enos M, Culleton B, Wiebenson D, Potier J, Hanoy M, Duquennoy S, Tingli W, Ling Z, Yunying S, Ping F, Dolley-Hitze T, Hamel D, Lombart ML, Leypoldt JK, Bernardo A, Hutchcraft AM, Vanholder R, Culleton BF, Movilli E, Camerini C, Gaggia P, Zubani R, Feller P, Pola A, Carli O, Salviani C, Manenti C, Cancarini G, Bozzoli L, Colombini E, Ricchiuti G, Pisanu G, Gargani L, Donadio C, Sidoti A, Lusini ML, Biagioli M, Ghezzi PM, Sereni L, Caiazzo M, Palladino G, Tomo T, Ishida K, Nakata T, Hamel D, Dolley-Hitze T. HAEMODIALYSIS TECHNIQUES AND ADEQUACY 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu153] [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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Kokunai Y, Nakata T, Furuta M, Sakata S, Kimura H, Aiba T, Yoshinaga M, Osaki Y, Nakamori M, Itoh H, Sato T, Kubota T, Kadota K, Shindo K, Mochizuki H, Shimizu W, Horie M, Okamura Y, Ohno K, Takahashi MP. A Kir3.4 mutation causes Andersen-Tawil syndrome by an inhibitory effect on Kir2.1. Neurology 2014; 82:1058-64. [DOI: 10.1212/wnl.0000000000000239] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Iwashita Y, Matsuduki M, Yukimitsu M, Yokoyama K, Nakata T, Yamamoto A, Ishikura K, Imai H. Initial anticoagulation strategy for extracorporeal cardiopulmonary resuscitation patients. Crit Care 2014. [PMCID: PMC4069367 DOI: 10.1186/cc13678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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