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Arai Y, Kosugiyama K, Tamura T, Matsumoto S, Sudo A, Shiraishi H, Ivor C, Ohtake A, Nagumo K. Successful recovery from severe hypertension in a patient with Leigh syndrome. Mol Genet Metab Rep 2021; 25:100684. [PMID: 34589414 PMCID: PMC8461110 DOI: 10.1016/j.ymgmr.2020.100684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/14/2020] [Accepted: 11/15/2020] [Indexed: 11/27/2022] Open
Abstract
Hypertension is a rare complication of Leigh Syndrome (LS), but prognosis of patients with hypertension is poor and its presence is indicative of the terminal stage of the disease. Herein, we report a four-year-old girl case diagnosed with LS at 15 months of age who subsequently developed severe hypertension and respiratory failure. Physical examination and laboratory findings did not indicate a secondary cause of hypertension. Her respiratory failure was treated with non-invasive ventilation and hypertension controlled with enalapril, furosemide and spironolactone. To our knowledge, this is the first case of a patient with LS recovering from severe hypertension.
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Affiliation(s)
- Yuto Arai
- Department of Pediatrics, Teine-Keijinkai Hospital, Sapporo, Japan
| | - Kiyotaka Kosugiyama
- Department of Pediatrics, Hokkaido University School of Medicine, Sapporo, Japan
| | - Takuya Tamura
- Department of Pediatrics, Teine-Keijinkai Hospital, Sapporo, Japan
| | - Sasagu Matsumoto
- Department of Pediatrics, Teine-Keijinkai Hospital, Sapporo, Japan
| | - Akira Sudo
- Social Welfare Corporation Nire-no-kai Children's Clinic, Sapporo, Japan
| | - Hideaki Shiraishi
- Department of Pediatrics, Hokkaido University School of Medicine, Sapporo, Japan
| | - Cammack Ivor
- Department of Clinical Residency Training, Teine-Keijinkai Hospital, Sapporo, Japan
| | - Akira Ohtake
- Center for Intractable Diseases, Saitama Medical University Hospital, Saitama, Japan
| | - Kiyoshi Nagumo
- Department of Pediatrics, Teine-Keijinkai Hospital, Sapporo, Japan
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Keino D, Kondoh K, Kim Y, Sudo A, Ohyama R, Morimoto M, Nihira H, Izawa K, Iwaki-Egawa S, Mori T, Kinoshita A. Successful treatment with cyclosporine and anti-tumour necrosis factor agent for deficiency of adenosine deaminase-2. Scand J Rheumatol 2020; 50:243-245. [PMID: 32720851 DOI: 10.1080/03009742.2020.1772868] [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: 10/23/2022]
Affiliation(s)
- D Keino
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan.,Division of Hematology and Oncology, Kanagawa Children`s Medical Center, Yokohama, Japan
| | - K Kondoh
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan
| | - Y Kim
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan
| | - A Sudo
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan
| | - R Ohyama
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan
| | - M Morimoto
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan
| | - H Nihira
- Department of Pediatrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - K Izawa
- Department of Pediatrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - S Iwaki-Egawa
- Department of Life Sciences, Hokkaido Pharmaceutical University School of Pharmacy, Hokkaido, Japan
| | - T Mori
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan
| | - A Kinoshita
- Department of Pediatrics, St Marianna University School of Medicine Hospital, Kanagawa, Japan
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Kawamura E, Maruyama M, Abe J, Sudo A, Takeda A, Takada S, Yokota T, Kinugawa S, Harashima H, Yamada Y. Validation of Gene Therapy for Mutant Mitochondria by Delivering Mitochondrial RNA Using a MITO-Porter. Mol Ther Nucleic Acids 2020; 20:687-698. [PMID: 32388194 PMCID: PMC7210581 DOI: 10.1016/j.omtn.2020.04.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/10/2020] [Accepted: 04/15/2020] [Indexed: 10/29/2022]
Abstract
Here, we report on validating a mitochondrial gene therapy by delivering nucleic acids to mitochondria of diseased cells by a MITO-Porter, a liposome-based carrier for mitochondrial delivery. We used cells derived from a patient with a mitochondrial disease with a G625A heteroplasmic mutation in the tRNAPhe of the mitochondrial DNA (mtDNA). It has been reported that some mitochondrial gene diseases are caused by heteroplasmic mutations, in which both mutated and wild-type (WT) genes are present, and the accumulation of pathological mutations leads to serious, intractable, multi-organ diseases. Therefore, the decrease of the mutated gene rate is considered to be a useful gene therapy strategy. To accomplish this, wild-type mitochondrial pre-tRNAPhe (pre-WT-tRNAPhe), prepared by in vitro transcription, was encapsulated in the MITO-Porter. The pre-WT-tRNAPhe encapsulated in the MITO-Porter was transfected into diseased mitochondrial cells, and the resulting mutant levels were examined by an amplification refractory mutation system (ARMS)-quantitative PCR. The mutation rate of tRNAPhe was decreased, and this therapeutic effect was sustained even on the 8th day after transfection. Furthermore, mitochondrial respiratory activity of the disease cells was increased after the transfection of therapeutic pre-WT-tRNAPhe. These results support the conclusion that the mitochondrial delivery of therapeutic nucleic acids represents a viable strategy for mitochondrial gene therapy.
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Affiliation(s)
- Eriko Kawamura
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Minako Maruyama
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Jiro Abe
- Department of Pediatrics, Hokkaido University Hospital, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Akira Sudo
- Nire-no-kai Children's Clinic, Atsubetsu-cho Shimonopporo-49, Atsubetsu-ku, Sapporo 004-0007, Japan; Department of Pediatrics, Sapporo City General Hospital, Kita-11, Nishi-13, Chuo-ku, Sapporo 060-8604, Japan
| | - Atsuhito Takeda
- Department of Pediatrics, Hokkaido University Hospital, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Shingo Takada
- Department of Cardiovascular Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Takashi Yokota
- Department of Cardiovascular Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Shintaro Kinugawa
- Department of Cardiovascular Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Hideyoshi Harashima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Yuma Yamada
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan.
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Ng YS, Lax NZ, Maddison P, Alston CL, Blakely EL, Hepplewhite PD, Riordan G, Meldau S, Chinnery PF, Pierre G, Chronopoulou E, Du A, Hughes I, Morris AA, Kamakari S, Chrousos G, Rodenburg RJ, Saris CGJ, Feeney C, Hardy SA, Sakakibara T, Sudo A, Okazaki Y, Murayama K, Mundy H, Hanna MG, Ohtake A, Schaefer AM, Champion MP, Turnbull DM, Taylor RW, Pitceathly RDS, McFarland R, Gorman GS. MT-ND5 Mutation Exhibits Highly Variable Neurological Manifestations at Low Mutant Load. EBioMedicine 2018; 30:86-93. [PMID: 29506874 PMCID: PMC5952215 DOI: 10.1016/j.ebiom.2018.02.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/03/2018] [Accepted: 02/12/2018] [Indexed: 01/06/2023] Open
Abstract
Mutations in the m.13094T>C MT-ND5 gene have been previously described in three cases of Leigh Syndrome (LS). In this retrospective, international cohort study we identified 20 clinically affected individuals (13 families) and four asymptomatic carriers. Ten patients were deceased at the time of analysis (median age of death was 10years (range: 5·4months-37years, IQR=17·9years). Nine patients manifested with LS, one with mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS), and one with Leber hereditary optic neuropathy. The remaining nine patients presented with either overlapping syndromes or isolated neurological symptoms. Mitochondrial respiratory chain activity analysis was normal in five out of ten muscle biopsies. We confirmed maternal inheritance in six families, and demonstrated marked variability in tissue segregation, and phenotypic expression at relatively low blood mutant loads. Neuropathological studies of two patients manifesting with LS/MELAS showed prominent capillary proliferation, microvacuolation and severe neuronal cell loss in the brainstem and cerebellum, with conspicuous absence of basal ganglia involvement. These findings suggest that whole mtDNA genome sequencing should be considered in patients with suspected mitochondrial disease presenting with complex neurological manifestations, which would identify over 300 known pathogenic variants including the m.13094T>C.
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Affiliation(s)
- Yi Shiau Ng
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Nichola Z Lax
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Paul Maddison
- Department of Neurology, Queen's Medical Centre, Nottingham, UK
| | - Charlotte L Alston
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Emma L Blakely
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Philippa D Hepplewhite
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Gillian Riordan
- Paediatric Neurology Department, Red Cross War Memorial Children's Hospital, Cape Town, South Africa
| | - Surita Meldau
- Division of Chemical Pathology, Faculty of Health Sciences, University of Cape Town, South Africa; National Health Laboratory Service, Cape Town, South Africa
| | - Patrick F Chinnery
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; Medical Research Council Mitochondrial Biology Unit, Cambridge Biomedical Campus, Cambridge, UK
| | - Germaine Pierre
- Department of Inherited Metabolic Disease, Division of Women's and Children's Services, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Efstathia Chronopoulou
- Department of Inherited Metabolic Disease, Division of Women's and Children's Services, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Ailian Du
- Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Imelda Hughes
- Royal Manchester Children's Hospital, Central Manchester University Hospitals NHS Foundation Trust, UK
| | - Andrew A Morris
- Institute of Human Development, University of Manchester, Manchester M13 9WL, UK; Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9WL, UK
| | - Smaragda Kamakari
- Ophthalmic Genetics Unit, OMMA, Institute of Ophthalmology, Athens, Greece
| | - Georgia Chrousos
- Pediatric Ophthalmology Department, MITERA Children's Hospital, Athens, Greece
| | - Richard J Rodenburg
- Radboud Center for Mitochondrial Medicine, Department of Pediatrics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Christiaan G J Saris
- Department of Neurology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Catherine Feeney
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Steven A Hardy
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Takafumi Sakakibara
- Department of Pediatrics, Nara Medical University Hospital, Nara 634-8522, Japan
| | - Akira Sudo
- Department of Pediatrics, Sapporo City General Hospital, Sapporo 060-8604, Japan
| | - Yasushi Okazaki
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
| | - Kei Murayama
- Department of Metabolism, Chiba Children's Hospital, Chiba 266-0007, Japan
| | - Helen Mundy
- Evelina London Children's Hospital, Guy's & St Thomas' NHS Foundation Trust, London, UK
| | - Michael G Hanna
- MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, UK
| | - Akira Ohtake
- Department of Pediatrics, Faculty of Medicine, Saitama Medical University, Saitama 350-0495, Japan
| | - Andrew M Schaefer
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Mike P Champion
- Evelina London Children's Hospital, Guy's & St Thomas' NHS Foundation Trust, London, UK
| | - Doug M Turnbull
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Robert W Taylor
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Robert D S Pitceathly
- MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, UK
| | - Robert McFarland
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Gráinne S Gorman
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK.
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Niimi R, Kono T, Nishihara A, Hasegawa M, Kono T, Sudo A. Rebound-associated vertebral fractures after discontinuation of denosumab for the treatment of maxillitis. Osteoporos Int 2018; 29:769-772. [PMID: 29230512 DOI: 10.1007/s00198-017-4334-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 11/29/2017] [Indexed: 10/18/2022]
Abstract
We reported a 69-year-old female who discontinued denosumab due to dental treatment and subsequently suffered rebound-associated vertebral fractures 10 months after the last injection. This case raised an alarm regarding the discontinuation of denosumab for dental treatment. Denosumab, a human monoclonal antibody administered by subcutaneous injection, to the best of our knowledge, is the only fully investigated inhibitor of receptor activator of nuclear factor kappa B ligand. Discontinuation of denosumab leads to bone turnover rebound and rapid bone mineral density loss. Several studies have reported rebound-associated vertebral fractures after discontinuation of denosumab. We report on a new case of rebound-associated vertebral fractures after discontinuation of denosumab. A 69-year-old female, who withdrew from denosumab treatment after 3 years due to maxillitis, presented to our hospital with severe low back pain without any history of trauma. Ten months had passed since the last injection. Magnetic resonance imaging showed five acute vertebral fractures, which appeared to be rebound-associated vertebral fractures caused by discontinuation of denosumab due to dental treatment. This case clearly demonstrates the risk of discontinuation of denosumab for dental treatment.
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi City, Mie, 510-8008, Japan.
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi City, Mie, 510-8008, Japan
| | - A Nishihara
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi City, Mie, 510-8008, Japan
| | - M Hasegawa
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi City, Mie, 510-8008, Japan
| | - A Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
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Hasegawa M, Wada H, Tone S, Yamaguchi T, Wakabayashi H, Ikejiri M, Watanabe M, Fujimoto N, Matsumoto T, Ohishi K, Yamashita Y, Katayama N, Sudo A. Monitoring of hemostatic abnormalities in major orthopedic surgery patients treated with edoxaban by APTT waveform. Int J Lab Hematol 2017; 40:49-55. [PMID: 28869359 DOI: 10.1111/ijlh.12727] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 05/01/2017] [Accepted: 07/11/2017] [Indexed: 11/30/2022]
Abstract
INTRODUCTION An analysis of the activated partial thromboplastin time (APTT) in major orthopedic surgery patients receiving edoxaban for the prevention of venous thromboembolism (VTE) was carried out. METHODS The APTT waveform was analyzed in the above patients to monitor edoxaban administration. RESULTS Of these 99 patients, 12 exhibited deep vein thrombosis, and 25 had massive bleeding. An increased biphasic pattern of the APTT waveform was observed after the administration of edoxaban, but there were no significant differences between the patients with and without complications. The peak times of acceleration, velocity, and 1/2 fibrin formation were significantly prolonged after the administration of edoxaban, especially in patients with massive bleeding, and were moderately correlated with the anti-Xa activity. While the heights of velocity and acceleration peak 2 were lower in patients receiving warfarin treatment than in those receiving edoxaban, the widths of these parameters were significantly longer. The height of 1/2 fibrin formation and the width of acceleration peaks 1 and 2 and the velocity were significantly increased after the administration of edoxaban. CONCLUSION The peak time of the APTT waveform was significantly prolonged after the administration of edoxaban. The analysis of the APTT waveform may therefore be useful for the prediction of the risk of massive bleeding.
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Affiliation(s)
- M Hasegawa
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Wada
- Departments of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - S Tone
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Yamaguchi
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Wakabayashi
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Ikejiri
- Departments of Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Watanabe
- Departments of Central Laboratory, Mie University Graduate School of Medicine, Tsu, Japan
| | - N Fujimoto
- Departments of Molecular and Laboratory Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Matsumoto
- Departments of Blood Transfusion Service, Mie University Graduate School of Medicine, Tsu, Japan
| | - K Ohishi
- Departments of Blood Transfusion Service, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Yamashita
- Departments of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - N Katayama
- Departments of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Japan
| | - A Sudo
- Departments of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
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Sudo A, Kuroda Y. Media exposure, interactive health literacy, and adolescents' susceptibility to future smoking. Int J Adolesc Med Health 2017; 29:/j/ijamh.2017.29.issue-2/ijamh-2015-0052/ijamh-2015-0052.xml. [PMID: 26536575 DOI: 10.1515/ijamh-2015-0052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 06/01/2015] [Accepted: 08/16/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND Few studies have investigated interactive health literacy (IHL)'s relationship with adolescents' smoking-related behavior. This study investigated IHL's association with adolescents' susceptibility to future smoking. MATERIALS AND METHODS We conducted a school-based cross-sectional study of Japanese students enrolled in public junior high school, grades 7-9 (n=1937), who completed a self-report questionnaire. Variables were grade, gender, media exposure [television (TV), internet, and magazines], IHL (interest in learning about health, understanding what they hear about health, trying to follow what is taught about health), and susceptibility to future smoking. RESULTS Significant findings were: [1] media exposure was positively associated with adolescents' susceptibility to future smoking (TV: p<0.01, internet: p<0.01, magazines: p<0.01); [2] IHL was negatively associated with adolescents' susceptibility to future smoking (interest in learning about health: p<0.001; understanding what they hear about health: p<0.05; trying to follow what is taught about health: p<0.001). IHL's influence on susceptibility to future smoking was found to be marginally stronger than that of media exposure. CONCLUSION School health-education programs that promote adolescents' IHL may effectively reduce adolescents' susceptibility to future smoking.
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Affiliation(s)
- Akira Sudo
- Faculty of Medicine, Department of Public Health, University of Miyazaki, Miyazaki
| | - Yoshiki Kuroda
- Faculty of Medicine, Department of Public Health, University of Miyazaki, Miyazaki
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Niimi R, Kono T, Nishihara A, Hasegawa M, Kono T, Sudo A. A retrospective analysis of nonresponse to daily teriparatide treatment. Osteoporos Int 2016; 27:2845-2853. [PMID: 27055464 DOI: 10.1007/s00198-016-3581-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 03/22/2016] [Indexed: 11/26/2022]
Abstract
UNLABELLED Some patients with osteoporosis do not respond to teriparatide treatment. Prior bisphosphonate use, lower bone turnover marker (BTMs) concentrations, and lower early increases in BTMs were significantly associated with a blunted lumbar spine (LS) bone mineral density (BMD) response to daily treatment with teriparatide, although the impact was limited. INTRODUCTION Some osteoporosis patients do not respond to teriparatide treatment. To better understand the factors underlying treatment nonresponses, we compared nonresponders' and responders' characteristics. METHODS We retrospectively analyzed 354 male and female patients with osteoporosis who were administered teriparatide (20 μg/day) for 24 months. The patients were categorized as responders (≥3 % lumber spine (LS) bone mineral density (BMD) increase) or nonresponders (<3 % LS BMD increase), and the groups were compared. RESULTS The univariate analyses determined that prior bisphosphonate use, a lower baseline procollagen type I N-terminal propeptide (PINP) concentration and a lower urinary N-telopeptide of type I collagen (uNTX) concentration at baseline were significantly associated with teriparatide nonresponses, but these factors were not significant following multivariate analysis. Diminished early increases in the bone turnover markers (BTMs) were also related to nonresponses after teriparatide treatment began. In the nonresponders, the mean (standard deviation (SD)) absolute LS and femoral neck (FN) BMD changes were -0.002 g/cm(2) (0.032) and -0.010 g/cm(2) (0.045), respectively. In the responders, the mean (SD) absolute LS and FN BMD changes were 0.118 g/cm(2) (0.056) and 0.021 g/cm(2) (0.046), respectively. The serum PINP and uNTX levels increased rapidly in both groups, but the responders showed higher early absolute serum PINP and uNTX increases. CONCLUSIONS The factors associated with nonresponses were prior bisphosphonate use, lower baseline BTM levels, and lower early increases in the BTMs after starting teriparatide treatment, but the impact of these factors on achieving a ≥3 % LS BMD increase at 24 months was limited.
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan.
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - A Nishihara
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - M Hasegawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Mie University, Tsu, Japan
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - A Sudo
- Department of Orthopaedic Surgery, Graduate School of Medicine, Mie University, Tsu, Japan
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Niimi R, Kono T, Nishihara A, Hasegawa M, Kono T, Sudo A. Erratum to: A retrospective analysis of nonresponse to daily teriparatide treatment. Osteoporos Int 2016; 27:2887-2888. [PMID: 27189605 DOI: 10.1007/s00198-016-3625-4] [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: 11/28/2022]
Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan.
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - A Nishihara
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - M Hasegawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Mie University, Tsu, Japan
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - A Sudo
- Department of Orthopaedic Surgery, Graduate School of Medicine, Mie University, Tsu, Japan
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Miyamura G, Wakabayashi H, Kato S, Nakagawa T, Naito Y, Sudo A. AB0781 Effects of Teriparatide for Bone Loss and Pain-Related Behavior in The Hind Limb-Unloaded Mouse Model of Disuse Osteoporosis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wakabayashi H, Hasegawa M, Kato S, Miyamura G, Yamaguchi T, Sudo A. AB0198 Clinical Analysis of Preoperative Deep Vein Thrombosis Risk Factors in Patients Undergoing Primary Total Knee Arthroplasty. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kato S, Wakabayashi H, Naito Y, Miyamura G, Sudo A. THU0487 Teriparatide Improved Bone Loss and Hyperalgesia in A Mouse Model of Osteoporosis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Asanuma K, Yoshikawa T, Yoshida K, Okamoto T, Asanuma Y, Hayashi T, Akita N, Oi T, Nishimura A, Hasegawa M, Sudo A. Argatroban more effectively inhibits the thrombin activity in synovial fluid than naturally occurring thrombin inhibitors. Cell Mol Biol (Noisy-le-grand) 2016; 62:27-32. [PMID: 27262798] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 05/03/2016] [Indexed: 06/05/2023]
Abstract
The purpose of this study was to clarify the precise effect of argatroban on the inhibition of cytokine secretion induced by thrombin on synovial cells. The efficiency of thrombin inactivation by thrombin inhibitors was evaluated in human synovial fluids (SFs). In SFs from 13 osteoarthritis (OA) and 11 rheumatoid arthritis (RA) patients, thrombin, Factor Xa (FXa), plasmin activity, IL-6, MMP-3, VEGF, and D-dimer concentrations were measured. Tissue factor (TF) activity or IL-6, MMP-3, and VEGF secretion of human synovial cells with or without thrombin and argatroban were measured. The efficiency of thrombin inactivation in SFs was compared for thrombin inhibitors: argatroban, antithrombin III (ATIII), or heparin cofactor II (HCII). In SFs, thrombin, FXa, plasmin, D-dimer, IL-6, and MMP-3 were significantly higher in RA than in OA. In synovial cell experiments, TNF-alpha and thrombin enhanced TF activity on the cell surface, and IL-6, MMP-3, and VEGF secretion were enhanced by thrombin. Increased TF activity, and IL-6, MMP-3, and VEGF secretion induced by thrombin were inhibited by argatroban. In SFs, argatroban inactivated thrombin more effectively than ATIII or HCII. Since thrombin plays an important role in the disease activity of OA and RA, it is a potential therapeutic molecular target. Argatroban was the most effective anticoagulant to inhibit thrombin activity in SF. Intra-articular injection is ideal administration because it can deliver high dose of argatroban without high risk of systematic complication.
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Affiliation(s)
- K Asanuma
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
| | - T Yoshikawa
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
| | - K Yoshida
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
| | - T Okamoto
- Mie University School of Medicine Department of Molecular Pathobiology Tsu City, Mie Japan
| | - Y Asanuma
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
| | - T Hayashi
- Mie Prefecture Collage of Nursing Department of Biochemistry Tsu City, Mie Japan
| | - N Akita
- Suzuka University of Medical Science Department of Medical Engineering Suzuka City, Mie Japan
| | - T Oi
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
| | - A Nishimura
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
| | - M Hasegawa
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
| | - A Sudo
- Mie University School of Medicine Department of Orthopedic Surgery Tsu City, Mie Japan
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Niimi R, Kono T, Nishihara A, Hasegawa M, Matsumine A, Kono T, Sudo A. Usefulness of daily teriparatide treatment in elderly patients over 80 years of age. Osteoporos Int 2016; 27:1869-74. [PMID: 26759334 DOI: 10.1007/s00198-015-3479-1] [Citation(s) in RCA: 10] [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: 11/18/2015] [Accepted: 12/29/2015] [Indexed: 10/22/2022]
Abstract
UNLABELLED The percent and absolute lumbar spine and femoral neck bone mineral densities and procollagen type I N-terminal propeptide (PINP) and urinary N-telopeptide level increases noted after teriparatide 20 μg/day treatment for 24 months were similar in the older (age ≥ 80 years) and younger (age < 80 years) subgroups. INTRODUCTION Many individuals are living into their eighth and ninth decades, but little is known about the efficacy of osteoporosis medication for this population. We retrospectively compared usefulness of daily teriparatide therapy in osteoporosis patients ≥80 and <80 years to detect possible age-related differences. METHODS We analyzed 628 osteoporosis patients treated with teriparatide 20 μg/day for 24 months. The primary efficacy measures were changes in lumbar spine (LS) and femoral neck (FN) bone mineral density (BMD) over 24 months. Changes in serum procollagen type I N-terminal propeptide levels and urinary N-telopeptide (uNTX) excretion were also measured. Patients were divided into age subgroups (older, ≥80 years; younger, <80 years) for BMD and bone turnover marker comparison. RESULTS In the older subgroup, the percent LS BMD significantly increased by 14.6 ± 10.4 % (mean ± SD) and FN BMD significantly increased by 4.5 ± 10.7 % at 24 months. In the younger subgroup, the percent LS BMD significantly increased by 12.2 ± 8.5 % and FN BMD significantly increased by 2.9 ± 8.3 % at 24 months. In the older subgroup, the mean absolute LS BMD change was 0.111 ± 0.071 g/cm(2) and FN BMD change was 0.019 ± 0.043 g/cm(2). In the younger subgroup, the mean absolute LS BMD change was 0.098 ± 0.065 g/cm(2) and FN BMD change was 0.016 ± 0.045 g/cm(2). The percent and absolute BMD increases in LS and FN and changes in PINP and uNTX were similar between the subgroups. CONCLUSIONS The usefulness of daily teriparatide treatment is not age dependent.
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan.
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - A Nishihara
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - M Hasegawa
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - A Matsumine
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Kono
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan
| | - A Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
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Tsujii M, Iida R, Satonaka H, Sudo A. Usefulness and complications associated with thenar and standard portals during arthroscopic surgery of thumb carpometacarpal joint. Orthop Traumatol Surg Res 2015; 101:741-4. [PMID: 26168880 DOI: 10.1016/j.otsr.2015.04.009] [Citation(s) in RCA: 7] [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: 02/12/2015] [Revised: 03/25/2015] [Accepted: 04/27/2015] [Indexed: 02/02/2023]
Abstract
PURPOSE Advances in small arthroscopy have enabled a minimally invasive surgery for thumb carpometacarpal joints. However, surgery is often difficult using standard CM-radial (CM-R) and CM-ulnar portals (CM-U). Here, we describe the clinical applications and complications associated with using thenar portal (TP) and standard portals. METHODS Arthroscopic surgeries of thumb carpometacarpal joint were performed in 21 patients including 15 patients with osteoarthritis and six Bennett's fracture-dislocations. Complications and the frequency of use associated with each portal were evaluated. RESULTS Complications associated with the CM-R portal comprised paresthesia due to damage of the radial nerve branches in two patients. No nerves were damaged but the operation scar became tender at the TP in three patients. The CM-R was used at a lower frequency when the TP was utilized. CONCLUSION The clinical use of TP may decrease the risk of radial sensory nerve damage through decreasing frequency of use of the CM-R that is located near the nerve. LEVEL OF STUDY IV.
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Affiliation(s)
- M Tsujii
- Department of Orthopaedic Surgery, Graduate School of Medicine, Mie University, 2-174 Edobashi, 514-8507 Tsu City, Japan.
| | - R Iida
- Department of Orthopaedic Surgery, Nagai Hospital, Nagai, Japan
| | - H Satonaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Mie University, 2-174 Edobashi, 514-8507 Tsu City, Japan
| | - A Sudo
- Department of Orthopaedic Surgery, Graduate School of Medicine, Mie University, 2-174 Edobashi, 514-8507 Tsu City, Japan
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Nakamura T, Matsumine A, Asanuma K, Matsubara T, Sudo A. The value of the high-sensitivity modified Glasgow prognostic score in predicting the survival of patients with a soft-tissue sarcoma. Bone Joint J 2015; 97-B:847-52. [PMID: 26033068 DOI: 10.1302/0301-620x.97b.35098] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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] [Indexed: 01/14/2023]
Abstract
The aim of this study was to determine whether the high-sensitivity modified Glasgow prognostic score (Hs-mGPS) could predict the disease-specific survival and oncological outcome in adult patients with non-metastatic soft-tissue sarcoma before treatment. A total of 139 patients treated between 2001 and 2012 were retrospectively reviewed. The Hs-mGPS varied between 0 and 2. Patients with a score of 2 had a poorer disease-specific survival than patients with a score of 0 (p < 0.001). The estimated five-year rate of disease-specific survival for those with a score of 2 was 0%, compared with 85.4% (95% CI 77.3 to 93.5) for those with a score of 0. Those with a score of 2 also had a poorer disease-specific survival than those with a score of 1 (75.3%, 95% CI 55.8 to 94.8; p < 0.001). Patients with a score of 2 also had a poorer event-free rate than those with a score of 0 (p < 0.001). Those with a score of 2 also had a poorer event-free survival than did those with a score of 1 (p = 0.03). A multivariate analysis showed that the Hs-mGPS remained an independent predictor of survival and recurrence. The Hs-mGPS could be a useful prognostic marker in patients with a soft-tissue sarcoma.
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Affiliation(s)
- T Nakamura
- Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu-city, Mie, Japan
| | - A Matsumine
- Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu-city, Mie, Japan
| | - K Asanuma
- Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu-city, Mie, Japan
| | - T Matsubara
- Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu-city, Mie, Japan
| | - A Sudo
- Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu-city, Mie, Japan
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan,
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Nakagawa T, Wakabayashi H, Naito Y, Kato S, Iino T, Sudo A. FRI0306 Effects of Bisphosphonate for Pain-Related Behavior and Immunohistochemical Analysis in the Hind Limb-Unloaded Mouse Model of Disuse Osteoporosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kato S, Wakabayashi H, Nakagawa T, Naito Y, Sudo A. SAT0300 Teriparatide Inhibits Bone Loss and Improves Hyperalgesia in Ovariectomized Mice. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wakabayashi H, Hasegawa M, Niimi R, Noriki M, Miyazaki S, Sudo A. AB0267 Rheumatoid Arthritis and Revision Surgery Increase the Risk of Preoperative Deep Vein Thrombosis in Patients Undergoing Total Knee Arthroplasty. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2190] [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: 11/04/2022]
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Abstract
OBJECTIVES Salubrinal is a synthetic agent that elevates phosphorylation of eukaryotic translation initiation factor 2 alpha (eIF2α) and alleviates stress to the endoplasmic reticulum. Previously, we reported that in chondrocytes, Salubrinal attenuates expression and activity of matrix metalloproteinase 13 (MMP13) through downregulating nuclear factor kappa B (NFκB) signalling. We herein examine whether Salubrinal prevents the degradation of articular cartilage in a mouse model of osteoarthritis (OA). METHODS OA was surgically induced in the left knee of female mice. Animal groups included age-matched sham control, OA placebo, and OA treated with Salubrinal or Guanabenz. Three weeks after the induction of OA, immunoblotting was performed for NFκB p65 and p-NFκB p65. At three and six weeks, the femora and tibiae were isolated and the sagittal sections were stained with Safranin O. RESULTS Salubrinal suppressed the progression of OA by downregulating p-NFκB p65 and MMP13. Although Guanabenz elevates the phosphorylation level of eIF2α, it did not suppress the progression of OA. CONCLUSIONS Administration of Salubrinal has chondroprotective effects in arthritic joints. Salubrinal can be considered as a potential therapeutic agent for alleviating symptoms of OA. Cite this article: Bone Joint Res 2015;4:84-92.
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Affiliation(s)
- K Hamamura
- Indiana University, Purdue University, Indianapolis, 723 West Michigan Street, Indianapolis, Indiana 46202, USA
| | - A Nishimura
- Indiana University, Purdue University, Indianapolis, 723 West Michigan Street, Indianapolis, Indiana 46202, USA. Mie University Graduate School of Medicine, Mie 514, Japan
| | - T Iino
- Mie University Graduate School of Medicine, Mie 514, Japan
| | - S Takigawa
- Indiana University, Purdue University, Indianapolis, 723 West Michigan Street, Indianapolis, Indiana 46202, USA
| | - A Sudo
- Mie University Graduate School of Medicine, Mie 514, Japan
| | - H Yokota
- Indiana University, Purdue University, Indianapolis, 723 West Michigan Street, Indianapolis, Indiana 46202, USA
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Niimi R, Kono T, Nishihara A, Hasegawa M, Matsumine A, Kono T, Sudo A. Analysis of daily teriparatide treatment for osteoporosis in men. Osteoporos Int 2015; 26:1303-9. [PMID: 25567777 DOI: 10.1007/s00198-014-3001-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 12/09/2014] [Indexed: 10/24/2022]
Abstract
UNLABELLED The percent and absolute lumbar spine and femoral neck bone mineral densities and absolute procollagen type I N-terminal propeptide (PINP) increases following a 20-μg/day teriparatide treatment for 12 months were similar in men and women regardless of sex differences. INTRODUCTION Several placebo-controlled studies have measured the effects of daily teriparatide in men and postmenopausal women with osteoporosis but none have directly compared the effects between these groups. We retrospectively compared the effects of daily teriparatide therapy in men and postmenopausal women with osteoporosis and investigated biochemical markers of bone turnover to detect possible sex differences. METHODS Patients (563; 75 men and 488 women) with osteoporosis were retrospectively investigated. All patients were administered with teriparatide at 20 μg/day for 12 months. The primary efficacy measure was changed in lumbar spine (LS) and femoral neck (FN) bone mineral density (BMD) after 12 months of treatment. The change in serum levels of procollagen type I N-terminal propeptide (PINP) and urinary N-telopeptide (uNTX) excretion after 4, 8 and 12 months of treatment were also measured. RESULTS In men, the percent LS BMD significantly increased by 11.3 ± 9.9 % (mean ± standard deviation (SD)) and the FN BMD increased by 0.4 ± 6.4 % without a significant difference at 12 months. In postmenopausal women, the percent LS BMD significantly increased by 9.6 ± 8.1 % and the FN BMD significantly increased by 2.4 ± 7.8 % at 12 months. The percent and absolute BMD increases in LS and FN between men and women were similar. The absolute increases in PINP were similar in both groups at 4, 8 and 12 months. However, the absolute increases in uNTX were significantly lower in men than in women at 8 and 12 months. CONCLUSION Daily teriparatide treatment was as effective in men as in postmenopausal women regardless of sex differences.
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan,
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Shigemura T, Nakazawa Y, Amano Y, Sudo A, Watanabe M, Kobayashi M, Kobayashi N, Koike K, Agematsu K, Nishimura K. Subcutaneous abscess due to the basidiomycete Phellinus mori in a patient with chronic granulomatous disease. Infection 2015; 43:371-5. [DOI: 10.1007/s15010-015-0724-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 01/07/2015] [Indexed: 11/27/2022]
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Affiliation(s)
- H Satonaka
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - M Tsujii
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - A Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Naito Y, Wakabayashi H, Nakagawa T, Iino T, Sudo A. SAT0498 Alendronate Inhibits Hyperalgesia and Suppresses Neuropeptide Markers of Pain in A Mouse Model of Osteoporosis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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26
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Wakabayashi H, Hasegawa M, Niimi R, Naito Y, Nakagawa T, Sudo A. AB0245 Clinical Analysis of Preoperative Deep Vein Thrombosis Risk Factors in Patients with Total Hip Arthroplasty. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Nakagawa T, Wakabayashi H, Naito Y, Sudo A. SAT0495 Evaluation of Pain-Related Behavior in the Hindlimb-Unloaded Mouse Model of Bone Loss. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Niimi R, Kono T, Nishihara A, Hasegawa M, Matsumine A, Kono T, Sudo A. Efficacy of the dynamic radiographs for diagnosing acute osteoporotic vertebral fractures. Osteoporos Int 2014; 25:605-12. [PMID: 23903955 DOI: 10.1007/s00198-013-2456-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 06/14/2013] [Indexed: 10/26/2022]
Abstract
UNLABELLED We investigated the efficacy of dynamic radiographs for diagnosing acute osteoporotic vertebral fractures (OVFs) compared with supine radiographs or sitting radiographs alone. Evaluation of the dynamic radiographs was superior to the other evaluations. Dynamic radiographs provide a convenient and useful method of diagnosing acute OVFs. INTRODUCTION Identifying acute OVFs on plain radiographs is difficult. We studied a new approach to identify acute OVFs on the basis of fracture mobility. METHODS We performed a retrospective radiographic analysis of 472 acute OVFs (<3 weeks after onset), which were diagnosed on the basis of magnetic resonance imaging of T5 through L5 (a total of 5,239 vertebrae). Supine lateral radiographs were compared with sitting lateral radiographs to determine the presence or absence of mobility. Vertebrae showing changes in the vertebral body height were diagnosed as acute OVFs. We analyzed the diagnostic accuracy on the basis of comparative supine and sitting lateral radiographs and compared it with that of radiographs obtained in the supine or the sitting position alone. RESULTS Of the 472 acute OVFs diagnosed, 313 (66 %) exhibited vertebral mobility on supine lateral and sitting lateral radiographs. Correct diagnoses of acute OVFs or no acute OVFs were made in 4,883 vertebrae. There were 159 unreadable OVFs (3 %), and 197 previous OVFs (4 %) were misdiagnosed as acute OVFs. The sensitivity was 66 % and the specificity was 96 %. Evaluation of the mobility of acute OVFs in the supine and the sitting position was superior to evaluation using radiographs in either the supine or the sitting position alone. CONCLUSIONS Dynamic radiographs provide a convenient way to identify acute OVFs.
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan,
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Niimi R, Kono T, Nishihara A, Hasegawa M, Matsumine A, Nakamura T, Kono T, Sudo A. An algorithm using the early changes in PINP to predict the future BMD response for patients treated with daily teriparatide. Osteoporos Int 2014; 25:377-84. [PMID: 23812597 DOI: 10.1007/s00198-013-2426-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 05/28/2013] [Indexed: 11/30/2022]
Abstract
UNLABELLED About two thirds of patients with a procollagen type I N-terminal propeptide (PINP) increase of >80 μg/l at 1 month after starting teriparatide therapy showed a ≥10 % increase in lumbar spine (LS) bone mineral density (BMD) from baseline at 12 months. We recommend this algorithm as an aid in the clinical management of patients treated with daily teriparatide. INTRODUCTION An algorithm using PINP is provided in osteoporotic patients with teriparatide treatment. The correlations between the early changes in PINP and the subsequent BMD changes after daily teriparatide therapy were studied to develop an algorithm to monitor patients. METHODS We evaluated whether early changes in PINP correlated with the changes in BMD at 12 months and developed an algorithm using the early changes in PINP to predict the upcoming BMD increases. RESULTS The highest correlation coefficient for the relationship between PINP and LS BMD response was determined for the absolute change in PINP at 1 month and the percent change in LS BMD at 12 months (r = 0.36, p <0.01). Using a receiver operator curve analysis, we determined that an 80 μg/l increase in PINP was the most convenient predictor of a 10% increase in LS BMD from baseline (area under curve = 0.72). Using a cut-off value of 80 μg/l, the positive predictive value for predicting a 10% increase in LS BMD from baseline to 12 months was 65%. CONCLUSION Greater short-term changes in PINP with teriparatide therapy are associated with greater 12-month increases in LS BMD. About two thirds of patients with a PINP increase of >80 μg/l at 1 month after starting treatment showed a ≥10 % increase in LS BMD from baseline at 12 months. We recommend this algorithm as an aid in the clinical management of patients treated with teriparatide.
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Tomidahama Hospital, 26-14, Tomidahamacho, Yokkaichi, Mie, 510-8008, Japan,
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Sudo A, Sano H, Kawamura N. [Determination of the critical time point for efficacy of L-arginine infusion therapy in a case of MELAS with frequent stroke-like episodes]. No To Hattatsu 2014; 46:39-43. [PMID: 24620430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
MELAS (mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes) is the most representative subtype of mitochondrial diseases. Administration of L-arginine (L-Arg) or a precursor of nitric oxide (NO) has been proposed as a promising medication for MELAS because one of the pathophysiological mechanisms is supposedly a decreased capacity for NO-dependent vasodilation. We experienced a girl with MELAS and frequent stroke-like episodes who was treated with L-Arg infusion. We evaluated the efficacy of L-Arg infusion therapy based on whether her headache and nausea were disappeared and neurological symptoms were improved within 24 hours of L-Arg administration. L-Arg infusions were effective in all four episodes when the treatment was started within 4 hours of the onset of stroke-like episodes. On the other hand, the infusion was effective in only one out of five episodes when the medication was delayed by more than 4 hours after the onset. Furthermore, the early administration of L-Arg resulted in better outcomes regarding new lesions determined by brain MRI. Our data suggest that L-Arg infusion may be most effective when it is started within 4 hours of the onset of neurological symptoms in the acute phase of MELAS. The study of a large number of episodes in many patients will be needed to determine the critical time point of L-Arg administration after the onset of the acute phase of MELAS.
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Sudo A, Hayashi Y, Sano H, Kawamura N, Nishino I, Nonaka I. [Sibling cases of severe infantile form of nemaline myopathy with ACTA1-gene mutation]. No To Hattatsu 2013; 45:452-456. [PMID: 24313005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Severe infantile form of nemaline myopathy is clinically characterized by marked muscle hypotonia and weakness with respiratory and feeding difficulties since infancy. Recently, mutations in the skeletal muscle alpha-actine gene (ACTA1) have been identified in many patients with the nemaline myopathy. We experienced two cases of severe infantile form of nemaline myopathy with ACTA1 mutation (missence heterozygous mutation;c.553C>T, p.R185C) in siblings presenting with different clinical symptoms and courses. The elder brother was a typical "floppy infant" at birth. Because he could not suck and swallow at all, he was fed completely through a nasogastric tube. At 2 months of age, he developed respiratory insufficiency and was placed on a respirator all day. He was diagnosed with having nemaline myopathy from his muscle biopsy, which revealed marked variation in muscle fiber size with large numbers of nemaline bodies on Gomori-trichrome stain. In contrast, the younger brother presented with mild muscular hypotonia and feeding difficulty during the neonatal stage;therefore, he was partly fed through a nasogastric tube. At 2 months of age, he was admitted to our hospital because of respiratory distress, and he required nasal continuous positive airway pressure with oxygen followed by noninvasive positive pressure ventilation intermittently, mainly at night. He was followed at his home by parents with no serious problems;however he unexpectedly died at the age of 15 months. Although most cases of severe infantile form of nemaline myopathy caused by ACTA1 mutations are sporadic and have no family history, we emphasize that clinical symptoms are variable in siblings with the same mutation.
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Affiliation(s)
- Akira Sudo
- Department of Pediatrics, Sapporo City General Hospital, Sapporo, Hokkaido.
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Nakamura T, Grimer RJ, Carter SR, Tillman RM, Abudu A, Jeys L, Sudo A. Outcome of soft-tissue sarcoma patients who were alive and event-free more than five years after initial treatment. Bone Joint J 2013; 95-B:1139-43. [PMID: 23908433 DOI: 10.1302/0301-620x.95b8.31379] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We evaluated the risk of late relapse and further outcome in patients with soft-tissue sarcomas who were alive and event-free more than five years after initial treatment. From our database we identified 1912 patients with these pathologies treated between 1980 and 2006. Of these 1912 patients, 603 were alive and event-free more than five years after initial treatment and we retrospectively reviewed them. The mean age of this group was 48 years (4 to 94) and 340 were men. The mean follow-up was 106 months (60 to 336). Of the original cohort, 582 (97%) were alive at final follow-up. The disease-specific survival was 96.4% (95% confidence interval (CI) 94.4 to 98.3) at ten years and 92.9% (95% CI 89 to 96.8) at 15 years. The rate of late relapse was 6.3% (38 of 603). The ten- and 15-year event-free rates were 93.2% (95% CI 90.8 to 95.7) and 86.1% (95% CI 80.2 to 92.1), respectively. Multivariate analysis showed that tumour size and tumour grade remained independent predictors of events. In spite of further treatment, 19 of the 38 patients died of sarcoma. The three- and five-year survival rates after the late relapse were 56.2% (95% CI 39.5 to 73.3) and 43.2% (95% CI 24.7 to 61.7), respectively, with a median survival time of 46 months. Patients with soft-tissue sarcoma, especially if large, require long-term follow-up, especially as they have moderate potential to have their disease controlled.
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Affiliation(s)
- T Nakamura
- The Royal Orthopaedic Hospital, Oncology Service, Bristol Road South, Birmingham, UK.
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Yamaguchi T, Matsumine A, Niimi R, Nakamura T, Matsubara T, Asanuma K, Hasegawa M, Sudo A. Deep-vein thrombosis after resection of musculoskeletal tumours of the lower limb. Bone Joint J 2013; 95-B:1280-4. [PMID: 23997146 DOI: 10.1302/0301-620x.95b9.30905] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aim of this study was to define the incidence of venous thromboembolism (VTE) and risk factors for the development of deep-vein thrombosis (DVT) after the resection of a musculoskeletal tumour. A total of 94 patients who underwent resection of a musculoskeletal tumour between January 2003 and December 2005 were prospectively studied. There were 42 men and 52 women with a mean age of 54.4 years (18 to 86). All patients wore intermittent pneumatic compression devices and graduated compression stockings. Ultrasound examination of the lower limbs was conducted to screen for DVT between the fifth and ninth post-operative days. DVT was detected in 21 patients (22%). Of these, two were symptomatic (2%). One patient (1%) had a fatal pulmonary embolism. Patients aged ≥ 70 years had an increased risk of DVT (p = 0.004). The overall incidence of DVT (both symptomatic and asymptomatic) after resection of a musculoskeletal tumour with mechanical prophylaxis was high. It seems that both mechanical and anticoagulant prophylaxis is needed to prevent VTE in patients who have undergone the resection of a musculoskeletal tumour.
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Affiliation(s)
- T Yamaguchi
- Mie University Graduate School of Medicine, Department of Orthopedic Surgery, 2-174 Edobashi, Tsu City, Mie 514-8507, Japan
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Wakabayashi H, Hasegawa M, Sudo A, Nishioka Y, Nishioka K. AB0533 Tocilizumab improves treatment outcomes in patients with rheumatoid arthritis for whom anti-TNF agents has failed. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Naito Y, Wakabayashi H, Sudo A. THU0410 Evaluation of Pain-Related Behavior in Osteoporotic Mouse. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.938] [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: 11/04/2022]
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Nakamura T, Grimer RJ, Gaston CL, Watanuki M, Sudo A, Jeys L. The prognostic value of the serum level of C-reactive protein for the survival of patients with a primary sarcoma of bone. Bone Joint J 2013; 95-B:411-8. [PMID: 23450030 DOI: 10.1302/0301-620x.95b3.30344] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [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: 12/31/2022]
Abstract
The aim of this study was to determine whether the level of circulating C-reactive protein (CRP) before treatment predicted overall disease-specific survival and local tumour control in patients with a sarcoma of bone. We retrospectively reviewed 318 patients who presented with a primary sarcoma of bone between 2003 and 2010. Those who presented with metastases and/or local recurrence were excluded. Elevated CRP levels were seen in 84 patients before treatment; these patients had a poorer disease-specific survival (57% at five years) than patients with a normal CRP (79% at five years) (p < 0.0001). They were also less likely to be free of recurrence (71% at five years) than patients with a normal CRP (79% at five years) (p = 0.04). Multivariate analysis showed the pre-operative CRP level to be an independent predictor of survival and local control. Patients with a Ewing's sarcoma or chondrosarcoma who had an elevated CRP before their treatment started had a significantly poorer disease-specific survival than patients with a normal CRP (p = 0.02 and p < 0.0001, respectively). Patients with a conventional osteosarcoma and a raised CRP were at an increased risk of poorer local control. We recommend that CRP levels are measured routinely in patients with a suspected sarcoma of bone as a further prognostic indicator of survival.
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Affiliation(s)
- T Nakamura
- The Royal Orthopaedic Hospital, Oncology Service, Bristol Road South, Northfield, Birmingham B31 2AP, UK.
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Kuga A, Kanagawa M, Sudo A, Chan Y, Tajiri M, Manya H, Kobayashi K, Endo T, Lu Q, Wada Y, Toda T. G.P.11 Fukutin-related protein (FKRP) is involved in the post-phosphoryl modification of α-dystroglycan. Neuromuscul Disord 2012. [DOI: 10.1016/j.nmd.2012.06.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Jo W, Sano H, Sudo A, Matsunami Y, Kawamura N, Tajima T. A Case of Novel Mutation of HNF1B in Maturity-onset Diabetes of the Young Type 5 (MODY5). Clin Pediatr Endocrinol 2012; 21:53-5. [PMID: 23926411 PMCID: PMC3687648 DOI: 10.1297/cpe.21.53] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 05/21/2012] [Indexed: 11/26/2022] Open
Affiliation(s)
- Wakako Jo
- Department of Pediatrics, Sapporo City Hospital, Sapporo, Japan
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Yamauchi T, Fujita T, Tachimori H, Takeshima T, Inagaki M, Sudo A. Age-adjusted relative suicide risk by marital and employment status over the past 25 years in Japan. J Public Health (Oxf) 2012; 35:49-56. [PMID: 22789751 DOI: 10.1093/pubmed/fds054] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND There have been no longitudinal studies in Japan examining national-level data for suicide risk by marital and employment status. We examined the age-adjusted relative suicide risk (RR) by marital and employment status from national data acquired for all suicides in Japan occurring in the past 25 years. METHODS All deaths identified as suicides according to ICD-9 and ICD-10 were extracted from vital statistics data of Japan for the years 1980, 1985, 1990, 1995, 2000 and 2005. Population statistics for Japanese residents aged ≥15 years were obtained from the census. RESULTS Suicide rates for almost all categories analyzed decreased in both genders between 1985 and 1990 and increased between 1995 and 2000, especially among men. Unemployed and divorced men had a consistently higher RR in each year analyzed. Unemployed and divorced women had a higher risk than those in other categories, especially in 2000 and 2005. In women, particularly in 1980, 1985 and 1990, those who were unemployed and never married had a similar RR to those who were unemployed and divorced. CONCLUSIONS Unemployed and divorced people were at a high risk of suicide over the past 25 years, particularly in 2000 and 2005. Our findings suggest that the effects of divorce and unemployment on suicide risk are synergistic.
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Affiliation(s)
- T Yamauchi
- Center for Suicide Prevention, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawahigashi, Kodaira, Tokyo 187-8553, Japan.
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Niimi R, Hasegawa M, Shi DQ, Sudo A. The influence of fondaparinux on the diagnosis of postoperative deep vein thrombosis by soluble fibrin and D-dimer. Thromb Res 2011; 130:759-64. [PMID: 22192153 DOI: 10.1016/j.thromres.2011.11.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2011] [Revised: 11/10/2011] [Accepted: 11/24/2011] [Indexed: 10/14/2022]
Abstract
INTRODUCTION There are many reports concerning the fondaparinux prophylaxis of deep vein thrombosis (DVT) after surgery, but little is known about the usefulness of diagnosing DVT by the thrombotic markers such as soluble fibrin (SF) and D-dimer in patients treated with fondaparinux. The main purpose of this study was to evaluate the accuracy of SF and D-dimer tests for DVT screening in patients undergoing total hip arthroplasty (THA) and total knee arthroplasty (TKA) treated with fondaparinux. MATERIALS AND METHODS A total of 519 patients who underwent THA or TKA were evaluated. SF and D-dimer levels were evaluated on postoperative days 1, 4, 7, 14 and 21. DVT was confirmed by ultrasonography 4 days after surgery. RESULTS The incidence of DVT in patients treated with fondaparinux was significantly lower than in patients without fondaparinux. The SF test on postoperative day 1, and the D-dimer test on postoperative days 1, 4, and 7 were useful in untreated patients. However, in the patients treated with fondaparinux, the D-dimer test on postoperative day 7 only was useful for DVT screening. CONCLUSION The accuracy of SF and D-dimer test for the diagnosis of DVT was decreased by administration of fondaparinux. A new strategy for diagnosing DVT might be required for patients receiving fondaparinux.
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Affiliation(s)
- R Niimi
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Edobashi, Tsu City, Mie, 514-8507, Japan
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Okumura A, Uematsu M, Imataka G, Tanaka M, Okanishi T, Kubota T, Sudo A, Tohyama J, Tsuji M, Ohmori I, Naiki M, Hiraiwa-Sofue A, Sato H, Saitoh S, Shimizu T. Acute encephalopathy in children with Dravet syndrome. Epilepsia 2011; 53:79-86. [DOI: 10.1111/j.1528-1167.2011.03311.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Toda T, Kanagawa M, Lu Z, Ito C, Kuga A, Hozoji-Inada M, Sudo A, Kobayashi K. P2.21 Dysferlin-mediated membrane repair system contributes to maintenance of skeletal muscle cell viability in mouse models for muscular dystrophy. Neuromuscul Disord 2011. [DOI: 10.1016/j.nmd.2011.06.844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sano H, Watanabe S, Koseki N, Fujiwara SI, Sudo A, Kawamura N. A 17-month-old boy with cerebral infarction following mild respiratory symptoms. J Clin Virol 2011; 52:160-3. [PMID: 21937267 DOI: 10.1016/j.jcv.2011.08.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Revised: 08/23/2011] [Accepted: 08/24/2011] [Indexed: 11/18/2022]
Affiliation(s)
- Hitomi Sano
- Department of Pediatrics, Sapporo City General Hospital, North-11, West-13, Chuo-ku, Sapporo 0608604, Japan.
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Hannibal MC, Buckingham KJ, Ng SB, Ming JE, Beck AE, McMillin MJ, Gildersleeve HI, Bigham AW, Tabor HK, Mefford HC, Cook J, Yoshiura KI, Matsumoto T, Matsumoto N, Miyake N, Tonoki H, Naritomi K, Kaname T, Nagai T, Ohashi H, Kurosawa K, Hou JW, Ohta T, Liang D, Sudo A, Morris CA, Banka S, Black GC, Clayton-Smith J, Nickerson DA, Zackai EH, Shaikh TH, Donnai D, Niikawa N, Shendure J, Bamshad MJ. Spectrum of MLL2 (ALR) mutations in 110 cases of Kabuki syndrome. Am J Med Genet A 2011; 155A:1511-6. [PMID: 21671394 DOI: 10.1002/ajmg.a.34074] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Accepted: 03/30/2011] [Indexed: 12/24/2022]
Abstract
Kabuki syndrome is a rare, multiple malformation disorder characterized by a distinctive facial appearance, cardiac anomalies, skeletal abnormalities, and mild to moderate intellectual disability. Simplex cases make up the vast majority of the reported cases with Kabuki syndrome, but parent-to-child transmission in more than a half-dozen instances indicates that it is an autosomal dominant disorder. We recently reported that Kabuki syndrome is caused by mutations in MLL2, a gene that encodes a Trithorax-group histone methyltransferase, a protein important in the epigenetic control of active chromatin states. Here, we report on the screening of 110 families with Kabuki syndrome. MLL2 mutations were found in 81/110 (74%) of families. In simplex cases for which DNA was available from both parents, 25 mutations were confirmed to be de novo, while a transmitted MLL2 mutation was found in two of three familial cases. The majority of variants found to cause Kabuki syndrome were novel nonsense or frameshift mutations that are predicted to result in haploinsufficiency. The clinical characteristics of MLL2 mutation-positive cases did not differ significantly from MLL2 mutation-negative cases with the exception that renal anomalies were more common in MLL2 mutation-positive cases. These results are important for understanding the phenotypic consequences of MLL2 mutations for individuals and their families as well as for providing a basis for the identification of additional genes for Kabuki syndrome.
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Affiliation(s)
- Mark C Hannibal
- Department of Pediatrics, University of Washington, Seattle, 98195, USA
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Wakabayashi H, Oka H, Nishioka Y, Hasegawa M, Sudo A, Nishioka K. Do biologics-naïve patients with rheumatoid arthritis respond better to tocilizumab than patients for whom anti-TNF agents have failed? A retrospective study. Clin Exp Rheumatol 2011; 29:314-317. [PMID: 21418781] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Accepted: 12/15/2010] [Indexed: 05/30/2023]
Abstract
OBJECTIVES To determine responses to tocilizumab between patients with rheumatoid arthritis (RA) who switched to anti-TNF agents and those who are biologics-naïve. METHODS This retrospective study investigated 107 patients with RA who were treated with tocilizumab. At baseline, 61 of them had already been treated with anti-TNF agents (switched group; 46 for inefficacy and 15 for adverse events), and 46 were biologics-naïve (naïve group). Treatment responses to tocilizumab at week 12 and 24 were compared between the switched and naïve groups using the disease activity score 28 (DAS28). RESULTS Forty-two (91.3%) and 50 (82.0%) patients in the naïve and switched groups, respectively, completed 24 weeks of tocilizumab treatment. The DAS28-ESR and DAS28-CRP values (means±SD) at weeks 12 and 24 compared to baseline decreased significantly for the naïve and switched groups. The DAS28-ESR and DAS28-CRP values at weeks 12 and 24 were significantly decreased in the naïve group, compared to the switched group. Disease activity was improved in the naïve patients compared to the switched patients. CONCLUSIONS Tocilizumab was safe, tolerable, and clinically effective for patients with inadequate responses to anti-TNF therapy and for those who were biologics-naïve, and it was more effective among the latter.
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Affiliation(s)
- H Wakabayashi
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan.
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Saitsu H, Kato M, Okada I, Orii KE, Higuchi T, Hoshino H, Kubota M, Arai H, Tagawa T, Kimura S, Sudo A, Miyama S, Takami Y, Watanabe T, Nishimura A, Nishiyama K, Miyake N, Wada T, Osaka H, Kondo N, Hayasaka K, Matsumoto N. STXBP1 mutations in early infantile epileptic encephalopathy with suppression-burst pattern. Epilepsia 2010; 51:2397-405. [DOI: 10.1111/j.1528-1167.2010.02728.x] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Matsubara T, Kusuzaki K, Matsumine A, Murata H, Marunaka Y, Hosogi S, Uchida A, Sudo A. Photodynamic therapy with acridine orange in musculoskeletal sarcomas. ACTA ACUST UNITED AC 2010; 92:760-2. [PMID: 20513869 DOI: 10.1302/0301-620x.92b6.23788] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Limb salvage involving wide resection and reconstruction is now well established for managing musculoskeletal sarcomas. However, involvement of major nerves and vessels with a large volume of muscle and skin may result in a useless limb, contributing to depression and a low quality of life. We have been studying alternative treatments for musculoskeletal sarcoma since 1990, and have recently established a regime using photodynamic surgery with cells labelled with acridine orange, photodynamic therapy with cells treated similarly and radiodynamic treatment using the effect of X-rays on such cells. These techniques have been used after marginal or intralesional resection of tumours since 1999 and have enabled maintenance of excellent limb function in patients with sarcomas.
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Affiliation(s)
- T Matsubara
- Department of Orthopaedic Surgery Mie University Graduate School of Medicine, Edobashi 2-174 Tsu City, Japan
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Nakamura M, Yabe I, Sudo A, Hosoki K, Yaguchi H, Saitoh S, Sasaki H. MERRF/MELAS overlap syndrome: a double pathogenic mutation in mitochondrial tRNA genes. J Med Genet 2010; 47:659-64. [PMID: 20610441 DOI: 10.1136/jmg.2009.072058] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Myoclonic epilepsy with ragged-red fibres (MERRF) and mitochondrial encephalopathy, lactic acidosis and stroke-like episodes (MELAS) are established phenotypes of mitochondrial encephalomyopathy. The m.8356T>C transition in the mitochondrial tRNA(Lys) gene is a pathogenic mutations of MERRF. The m.3243A>G transition in the mitochondrial tRNA(Leu) gene is detected in most MELAS patients. Although previous analyses of double mutations in mitochondrial DNA (mtDNA) were useful for discussing their nature, many unsolved questions remain. OBJECTIVE To describe the clinical and genetic features of a family with the above mtDNA double-point mutations and discuss the role of double mtDNA mutations in diverse clinical features in the family. PATIENTS AND METHODS The proband was a 23-year-old woman with MERRF harbouring m.8356T>C and m.3243A>G transitions in mitochondrial tRNA genes. We assessed clinical aspects of her and those of her three relatives and performed mutation analyses on their mtDNA. RESULTS Phenotypes of the four patients were MERRF, MERRF/MELAS overlap syndrome and asymptomatic carrier. We hypothesise that the course of the phenotype of this family begins with MERRF and is followed by MELAS. This double mutation was heteroplasmic in blood of all four patients but with different rates in each patient, while m.8356T>C appeared homoplasmic and m.3243A>G was heteroplasmic in muscle of the two examined cases. No other mutations were detected in the total mtDNA sequence in this family. CONCLUSIONS This is the first reported case of a double-point mutation in mtDNA, both of which were heteroplasmic and pathogenic for the established phenotypes.
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Affiliation(s)
- M Nakamura
- Department of Neurology, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo 060-8638, Japan
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Hori K, Matsumine A, Niimi R, Maeda M, Uchida K, Nakamura T, Sudo A. Diffuse gliomas in an adolescent with multiple enchondromatosis (Ollier's disease). Oncol Lett 2010; 1:595-597. [PMID: 22966349 DOI: 10.3892/ol_00000105] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Accepted: 05/24/2010] [Indexed: 11/05/2022] Open
Abstract
Ollier's disease is characterized by the hamartomatous proliferation of cartilage cells, producing masses termed chondromas. A patient presented with Ollier's disease which was found to be associated with diffuse gliomas. Investigating this disease is crucial as there is a high risk of sarcomatous transformation of the skeletal lesions as well as an increased risk of developing extra-osseous malignancies.
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Affiliation(s)
- K Hori
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, Mie, Japan
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Okamura N, Hasegawa M, Nakoshi Y, Iino T, Sudo A, Imanaka-Yoshida K, Yoshida T, Uchida A. Deficiency of tenascin-C delays articular cartilage repair in mice. Osteoarthritis Cartilage 2010; 18:839-48. [PMID: 19747998 DOI: 10.1016/j.joca.2009.08.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [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: 06/02/2009] [Revised: 08/13/2009] [Accepted: 08/26/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVE In human articular cartilage, tenascin-C (TN-C) expression decreases during maturation of chondrocytes, and almost disappears in adults; however, it reappears in damaged cartilage. To examine the effects of TN-C on cartilage degeneration and repair, we compared articular cartilage degeneration between wild-type (WT) and tenascin-C knockout mouse (TNKO) mice using a spontaneous osteoarthritis (OA) in aged joints and surgical OA model. In addition, we made full-thickness cartilage defects and compared the cartilage repair process between the two groups. METHODS The surgical procedure to create degenerative OA model was performed by transecting the anterior cruciate ligament and medial collateral ligament. Full-thickness defects were created in the center of the femoral trochlea to evaluate cartilage repair. Sections of cartilage were stained with hematoxylin and eosin or safranin-O, and immunostaining for TN-C. The degrees of degeneration and repair were graded. RESULTS In the WT surgical OA model, the articular cartilage was almost normal at 2 weeks, but safranin-O decreased staining at 4 weeks. In TNKO mice, safranin-O decreased staining at 2 weeks, and cartilage was injured intensely at 4 weeks. In the cartilage repair model, TN-C was expressed after 1 week, was strongly expressed in the upper layer of regenerated tissue after 3 weeks, and disappeared after 6 weeks. The defects were restored until 6 weeks in WT mice; however, defects in TNKO mice were filled with fibrous tissue with no cartilage-like tissue. CONCLUSIONS This study revealed that cartilage repair in TNKO mice was significantly slower than that in WT mice and that the deficiency of TN-C progressed during cartilage degeneration.
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Affiliation(s)
- N Okamura
- Departments of Orthopedic Surgery, Mie University Graduate School of Medicine, Mie, Japan
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