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Nagase H, Oka H, Uchimura H, Arita Y, Hirai T, Makita N, Tashiro N, Matsunaga K. Changes in disease burden and treatment reality in patients with severe asthma. Respir Investig 2024; 62:431-437. [PMID: 38492333 DOI: 10.1016/j.resinv.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/29/2023] [Accepted: 02/11/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Biologics are clinically available for patients with severe asthma, but changes in asthma control over time are unknown. We examined changes in disease burden and treatment in severe asthma patients. METHODS This retrospective study used a Japanese health insurance database (Cross Fact) and included patients aged ≥16 years treated continuously with an inhaled corticosteroid (ICS) for a diagnosis of asthma in each calendar year from 2015 to 2019. Severe asthma was defined as annual use of high-dose ICS plus one or more asthma controller medications four or more times, oral corticosteroids for ≥183 days, or biologics for ≥16 weeks. Changes in asthma exacerbations, prescriptions, and laboratory testing were examined. RESULTS Demographic characteristics were similar throughout the study. The number and proportion of patients with severe asthma among those with asthma increased (2724; 15.3% in 2015 vs 4485; 19.0% in 2019). The proportion of severe asthma patients with two or more asthma exacerbations decreased from 24.4% to 21.5%. Odds ratios (95% confidence interval) of ≥2 asthma exacerbations in each year compared with 2015 were 0.96 (0.85-1.08) in 2016 and 0.86 (0.76-0.97) in 2017, with significant reductions observed in subsequent years. Short-acting beta agonists and oral corticosteroid prescriptions for asthma exacerbations decreased and long-acting muscarinic antagonist and biologic prescriptions for maintenance treatment increased. CONCLUSIONS This study showed improvements in disease burden and treatment in severe asthma patients. There remains an unmet medical need for patients with severe asthma, given the proportion who continue to have asthma exacerbations.
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Affiliation(s)
- Hiroyuki Nagase
- Division of Respiratory Medicine and Allergology, Department of Medicine, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.
| | - Hayato Oka
- AstraZeneca K. K., 3-1 Ofukacho, Kita-ku, Osaka, 530-0011, Japan
| | - Hitomi Uchimura
- AstraZeneca K. K., 3-1 Ofukacho, Kita-ku, Osaka, 530-0011, Japan
| | - Yoshifumi Arita
- AstraZeneca K. K., 3-1 Ofukacho, Kita-ku, Osaka, 530-0011, Japan
| | - Takehiro Hirai
- AstraZeneca K. K., 3-1 Ofukacho, Kita-ku, Osaka, 530-0011, Japan
| | - Naoyuki Makita
- AstraZeneca K. K., 3-1 Ofukacho, Kita-ku, Osaka, 530-0011, Japan
| | - Naoki Tashiro
- AstraZeneca K. K., 3-1 Ofukacho, Kita-ku, Osaka, 530-0011, Japan
| | - Kazuto Matsunaga
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minamikogushi, Ube, Yamaguchi, 755-8505, Japan
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Osuka Y, Okubo Y, Nofuji Y, Maruo K, Fujiwara Y, Oka H, Shinkai S, Lord SR, Sasai H. Occupational Fall Risk Assessment Tool for older workers. Occup Med (Lond) 2023; 73:161-166. [PMID: 36893360 DOI: 10.1093/occmed/kqad035] [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] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND No easy-to-use fall risk assessment tools have been devised to assess occupational fall risk in older workers. AIMS To develop an Occupational Fall Risk Assessment Tool (OFRAT) and report its predictive validity and reliability in older workers. METHODS The baseline fall risk assessment was completed by 1113 participants aged ≥60 years who worked ≥4 days/month in Saitama, Japan. Participants were followed up for falls during occupational activities for 1 year, and 30 participants were assessed twice for test-retest reliability. The following assessment measures were summed to form the OFRAT risk score: older age, male sex, history of falls, physical work participation, diabetes, use of medications increasing fall risk, reduced vision, poor hearing, executive dysfunction and slow stepping. The scores were then classified into four grades (0-2 points: very low, 3 points: low, 4 points: moderate and ≥5 points: high). RESULTS During follow-up, 112 participants fell 214 times during work. The negative binomial regression model showed that participants with higher grades had a higher incidence rate ratio [95% confidence interval] for falls than those with very low grades (low: 1.64 [1.08-2.47], moderate: 4.23 [2.82-6.34] and high: 6.12 [3.83-9.76]). The intraclass correlation coefficient for risk score was 0.86 [0.72-0.93], and the weighted kappa coefficient for grade assessment was 0.74 [0.52-0.95]. CONCLUSIONS The OFRAT is a valid and reliable tool for estimating the occupational fall risk in older workers. It may assist occupational physicians implement strategies to prevent falls in this group.
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Affiliation(s)
- Y Osuka
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo 173-0015, Japan
- Department of Frailty Research, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi 474-8511, Japan
| | - Y Okubo
- Falls, Balance and Injury Research Center, Neuroscience Research Australia, Sydney 2031, Australia
- School of Population Health, University of New South Wales, Sydney 2052, Australia
| | - Y Nofuji
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo 173-0015, Japan
| | - K Maruo
- Department of Biostatistics, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Y Fujiwara
- Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo 173-0015, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical and Research Center, Faculty of Medicine, University of Tokyo, Tokyo 113-8655, Japan
| | - S Shinkai
- Graduate School of Nutrition and Health Science, Kagawa Nutrition University, Saitama 350-0214, Japan
| | - S R Lord
- Falls, Balance and Injury Research Center, Neuroscience Research Australia, Sydney 2031, Australia
- School of Population Health, University of New South Wales, Sydney 2052, Australia
| | - H Sasai
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo 173-0015, Japan
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Shimizu H, Oka H, Sumitomo S, Kanamori M, Miyakoshi C, Yoshimoto A, Nishioka H, Ohmura K. AB0439 COMPARATIVE EFFECTIVENESS OF RAPID AND CONVENTIONAL GLUCOCORTICOID TAPERING REGIMENS IN TREATING PATIENTS WITH PROLIFERATIVE LUPUS NEPHRITIS IN THE REAL WORLD SETTING. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRapid glucocorticoid (GC) tapering is recommended for lupus nephritis (LN) by 2019 EULAR/ERA-EDTA recommendations [1]. However, slower conventional GC tapering regimen is still common in the real world setting, and it is controversial whether a rapid GC tapering regimen is as effective as the conventional regimen.ObjectivesWe aimed to compare the renal outcomes between rapid and slower GC tapering regimens in patients with LN.MethodsWe retrospectively surveyed the medical records of 27 patients with proliferative LN (class Ⅲ or Ⅳ) at Kobe City Medical Center General Hospital. These patients were divided into two groups (rapid GC tapering group and conventional GC tapering group) according to GC dosage at month 6. Logistic regression analyses were performed to examine the association of GC tapering regimens with achievement of primary efficacy renal response (PERR) and complete renal response (CRR) which were defined by Furie et al. [2] at month 24.ResultsTwenty-seven patients (19 women and 8 men) with class Ⅲ or Ⅳ LN were included. The mean age was 43 years. The mean eGFR and urine protein-to-creatinine ratio at baseline were 66.7 mL/min/1.73m2 and 3.125 g/gCr, respectively. Concomitant class Ⅴ LN was present in 26.0%. The rapid GC tapering group (PSL≦10 mg/day at month 6) and the conventional GC tapering group (PSL>10 mg/day at month 6) were 11 and 16 patients, respectively. Baseline characteristics were balanced between the two groups except for use of cyclophosphamide or mycophenolate mofetil. Mean urine protein-to-creatinine ratio at month 24 were 0.46 g/gCr in the rapid GC tapering regimen group and 1.08 g/gCr in the conventional GC tapering regimen group (p=0.790). Achievements of PERR and CRR at month 24 were 54.0% and 43.8% in the rapid GC tapering group and 54.5% and 25.0% in the conventional GC tapering group, respectively. After adjustment of cyclophosphamide or mycophenolate mofetil usage and urine protein-to-creatinine ratio at baseline, adjusted odds ratio was 1.52 (95% confidence interval [0.126 to 18.29], p=0.743) and 2.99 (95% confidence interval [0.34 to 28.52], p=0.341), respectively.ConclusionOur results suggest rapid GC tapering regimen is as effective as conventional slower tapering regimen for patients with proliferative LN.References[1]Fanouriakis A, Kostopoulou M, Cheema K, et al. 2019 Update of the Joint European League Against Rheumatism and European Renal Association-European Dialysis and Transplant Association (EULAR/ERA-EDTA) recommendations for the management of lupus nephritis. Ann Rheum Dis 2020;79:713–723.[2]Furie R, Rovin BH, Houssiau F, et al. Two-Year, Randomized, Controlled Trial of Belimumab in Lupus Nephritis. N Engl J Med 2020;383:1117–1128.Table 1.Baseline patients characteristics.Rapid GC tapering group(n=11)Conventional GC tapering group(n=16)P valueAge – years41.7 ± 14.743.9 ± 16.20.863Female – no. (%)9 (81.8)10 (62.5)0.405Class Ⅲ LN – no. (%)6 (54.5)7 (43.8)0.704Class Ⅳ LN – no. (%)6 (45.5)9 (56.3)0.704Concomitant Class Ⅴ LN – no. (%)4 (36.4)3 (18.8)0.391Induction therapy (use of CY or MMF) – no. (%)10 (90.9)8 (50.0)0.042Serum creatinine – mg/dL1.15 ± 0.721.14 ± 0.800.882eGFR – mL/min/1.73m265.2 ± 39.067.8 ± 34.50.835UPCR – g/gCr3.29 ± 2.963.01 ± 3.250.604C3 – mg/dL41.1 ± 20.145.0 ± 21.50.639C4 – mg/dL6.8 ± 4.710.1 ± 8.00.346GC, glucocorticoid; LN, lupus nephritis; UPCR, urine protein-to-creatinine ratio; CY, cyclophosphamide; MMF, mycophenolate mofetilDisclosure of InterestsNone declared
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Horii C, Iidaka T, Muraki S, Oka H, Asai Y, Tsutsui S, Hashizume H, Yamada H, Yoshida M, Kawaguchi H, Nakamura K, Akune T, Oshima Y, Tanaka S, Yoshimura N. The cumulative incidence of and risk factors for morphometric severe vertebral fractures in Japanese men and women: the ROAD study third and fourth surveys. Osteoporos Int 2022; 33:889-899. [PMID: 34797391 DOI: 10.1007/s00198-021-06143-7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 08/30/2021] [Indexed: 10/19/2022]
Abstract
UNLABELLED This population-based cohort study with a 3-year follow-up revealed that the annual incidence rates of vertebral fracture (VF) and severe VF (sVF) were 5.9%/year and 1.7%/year, respectively. The presence of mild VF at the baseline was a significant risk factor for incident sVF in participants without prevalent sVF. INTRODUCTION This study aimed to estimate the incidence of morphometric vertebral fracture (VF) and severe VF (sVF) in men and women and clarify whether the presence of a mild VF (mVF) increases the risk of incident sVF. METHODS Data from the population-based cohort study, entitled the Research on Osteoarthritis/Osteoporosis Against Disability (ROAD) study, were analyzed. In total, 1190 participants aged ≥ 40 years (mean age, 65.0 ± 11.2) years completed whole-spine lateral radiography both at the third (2012-2013, baseline) and fourth surveys performed 3 years later (2015-2016, follow-up). VF was defined using Genant's semi-quantitative (SQ) method: VF as SQ ≥ 1, mVF as SQ = 1, and sVF as SQ ≥ 2. Cumulative incidence of VF and sVF was estimated. Multivariate logistic regression analyses were performed to evaluate risk factors for incident sVF. RESULTS The baseline prevalence of mVF and sVF were 16.8% and 6.0%, respectively. The annual incidence rates of VF and sVF were 5.9%/year and 1.7%/year, respectively. The annual incidence rates of sVF in participants without prevalent VF, with prevalent mVF, and with prevalent sVF were 0.6%/year, 3.8%/year, and 11.7%/year (p < 0.001), respectively. Multivariate logistic regression analyses in participants without prevalent sVF showed that the adjusted odds ratios for incident sVF were 4.12 [95% confident interval 1.85-9.16] and 4.53 [1.49-13.77] if the number of prevalent mVF at the baseline was 1 and ≥ 2, respectively. CONCLUSIONS The annual incidence rates of VF and sVF were 5.9%/year and 1.7%/year, respectively. The presence of prevalent mVF was an independent risk factor for incident sVF.
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Affiliation(s)
- C Horii
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - T Iidaka
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - S Muraki
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Y Asai
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - S Tsutsui
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - H Hashizume
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - H Yamada
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - M Yoshida
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - H Kawaguchi
- Department of Orthopaedic Surgery, Tokyo Neurological Center, 4-1-17, Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - K Nakamura
- Department of Orthopaedics, Towa Hospital, Towa 4-7-10, Adachi-ku, Tokyo, 120-0003, Japan
| | - T Akune
- Department of Orthopaedics, National Rehabilitation Center for Persons With Disabilities, 4-1 Namiki, Tokorozawa City, Saitama, 359-0042, Japan
| | - Y Oshima
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Noriko Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan.
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Heo J, Hashimoto N, Oka H, Noto H. Improvement of thermal conductivity by adding tungsten and/or copper wire in F82H. J NUCL SCI TECHNOL 2021. [DOI: 10.1080/00223131.2021.1961635] [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: 10/20/2022]
Affiliation(s)
- Jeongwoo Heo
- Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - N. Hashimoto
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - H. Oka
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - H. Noto
- Materials System Research Section, National Institute for Fusion Science, Toki, Japan
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Umehara T, Oka H, Shiraishi T, Sato T, Nakahara A, Matsuno H, Komatsu T, Omoto S, Murakami H, Iguchi Y. Cardiac sympathetic dysfunction associated with dopaminergic depletion in striatal subregions in de novo Parkinson's disease. Parkinsonism Relat Disord 2020. [DOI: 10.1016/j.parkreldis.2020.06.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Iidaka T, Muraki S, Oka H, Horii C, Kawaguchi H, Nakamura K, Akune T, Tanaka S, Yoshimura N. Incidence rate and risk factors for radiographic hip osteoarthritis in Japanese men and women: a 10-year follow-up of the ROAD study. Osteoarthritis Cartilage 2020; 28:182-188. [PMID: 31629024 DOI: 10.1016/j.joca.2019.09.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 11/06/2018] [Revised: 06/17/2019] [Accepted: 09/17/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the incidence and progression rate of radiographic hip osteoarthritis (OA) and its risk factors in Japanese men and women using a large-scale population of a nationwide cohort study, Research on Osteoarthritis/osteoporosis Against Disability (ROAD). METHODS From the baseline survey of the ROAD study, 2,975 participants (1,043 men and 1,932 women) aged 23-94 years (mean, 70.2 years) living in urban, mountainous, and coastal communities were followed up with hip radiography at 3, 7, and 10 years (mean follow-up, 7.1 years). Radiographs were scored using the Kellgren/Lawrence (K/L) grading system, and radiographic hip OA was defined as K/L ≥ 2. The incidence and progression rate of hip OA were examined. Acetabular dysplasia was defined as a central-edge angle <20°. Cox's proportional hazard model was used to assess risk factors for incident and progressive radiographic hip OA. RESULTS The incidence rate of radiographic hip OA was 5.6/1,000 person-years and 8.4/1,000 person-years in men and women, respectively. The progression rate of hip OA was 2.2/1,000 person-years and 6.0/1,000 person-years in men and women, respectively. The significant risk factors for incident hip OA were age, obesity, and acetabular dysplasia at baseline (hazard risk [HR] 1.05, 95% confidence interval [CI] 1.03-1.08; 1.78, 1.10-2.75; 2.06, 1.30-3.17, respectively). The significant risk factors for progressive hip OA were baseline hip pain and acetabular dysplasia (HR 5.68, 95%CI 1.07-22.61; 14.78, 3.66-56.06, respectively). CONCLUSION Continued longitudinal surveys of the ROAD study will contribute to knowledge about and potential prevention of incident and progressive hip OA.
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Affiliation(s)
- T Iidaka
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - S Muraki
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - C Horii
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - H Kawaguchi
- Department of Orthopaedic Surgery, Japan Community Health Care Organization Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - K Nakamura
- National Rehabilitation Center for Persons with Disabilities, Saitama, Japan
| | - T Akune
- National Rehabilitation Center for Persons with Disabilities, Saitama, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - N Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan.
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MacNeil JD, Martz VK, Korsrud GO, Salisbury CDC, Oka H, Epstein RL, Barnes CJ, Alfredsson G, Barry C, Bergner B, Chan W, Diserens JM, IInicki LP, Klein E, Koscinski B, Vasco G, Phillippo T, Mawhinny H, Mϋller E, Petz M, Oka H, Patel R, Telling GM, Webb M, Henry C, Farrington WH. Chlortetracycline, Oxytetracycline, and Tetracycline in Edible Animal Tissues, Liquid Chromatographic Method: Collaborative Study. J AOAC Int 2020. [DOI: 10.1093/jaoac/79.2.405] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Thirteen laboratories analyzed samples of edible animal tissues for tetracycline residues. The method included extraction of analytes into buffer, elution from a C18 solid-phase extraction (SPE) cartridge, and reversed-phase liquid chromatographic (LC) analysis, including use of a confirmation column. An additional laboratory, using an alternative LC assay based on a different sample cleanup, also analyzed the samples. Results showed the 2 methods are comparable. The LC method for determination of cholortetracycline, oxytetracycline, and tetracycline in edible animal tissues has been adopted by AOAC INTERNATIONAL. Results from 13 laboratories indicate that the method under study provides generally better results at the higher concentrations tested than at concentrations near the detection limit and that there is less problem with interferences in muscle tissue than in kidney. The method can achieve reliable results for analytes and matrixes studied at concentrations from 0.1 to 0.6 ppm and above, depending on the analyte-matrix combination, with generally better performance to be expected with muscle than with kidney. The poorer performance for fortified samples, particularly kidney, was attributed to additional homogenization steps required to prepare these samples. Recovery of analytes from different
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Affiliation(s)
- James D MacNeil
- Agriculture and Agri-Food Canada, Health of Animals Laboratory, Saskatoon, SK, S7N 2R3, Canada
| | - Valerie K Martz
- Agriculture and Agri-Food Canada, Health of Animals Laboratory, Saskatoon, SK, S7N 2R3, Canada
| | - Gary O Korsrud
- Agriculture and Agri-Food Canada, Health of Animals Laboratory, Saskatoon, SK, S7N 2R3, Canada
| | - Craig D C Salisbury
- Agriculture and Agri-Food Canada, Health of Animals Laboratory, Saskatoon, SK, S7N 2R3, Canada
| | - Hisao Oka
- Aichi Prefectural Institute of Public Health, Laboratory of Food and Drug Chemistry, 7-6 Nagare, Tsujmachi, Kita-Ku Nagoya 462, Japan
| | - Robert L Epstein
- U.S. Department of Agriculture, Agricultural Marketing Service, Science Division, PO Box 96456, Washington, DC 20090
| | - Charlie J Barnes
- U.S. Food and Drug Administration, Office of Science, HFV-501, Bldg 328A, BARC-East, Beltsville, MD 20705
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Harigaya Y, Ikeda M, Oka H, Aoki S, Mizushima K, Murayama S, Ikeda Y. Clinical analysis of adult-onset neuronal intranuclear inclusion disease. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.904] [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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Yoshimura N, Muraki S, Oka H, Iidaka T, Kodama R, Horii C, Kawaguchi H, Nakamura K, Akune T, Tanaka S. Do sarcopenia and/or osteoporosis increase the risk of frailty? A 4-year observation of the second and third ROAD study surveys. Osteoporos Int 2018; 29:2181-2190. [PMID: 29931626 DOI: 10.1007/s00198-018-4596-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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: 12/26/2017] [Accepted: 05/31/2018] [Indexed: 01/07/2023]
Abstract
UNLABELLED In this 4-year follow-up study including 1083 subjects (≥ 60 years), the prevalence of frailty was estimated to be 5.6%; osteoporosis was found to be significantly associated with frailty. Moreover, the presence of both osteoporosis and sarcopenia increased the risk of frailty compared to the presence of osteoporosis or sarcopenia alone. INTRODUCTION This study aims to examine the contribution of sarcopenia and osteoporosis to the occurrence of frailty using 4-year follow-up information of a population-based cohort study. METHODS The second survey of the Research on Osteoarthritis/Osteoporosis Against Disability (ROAD) study was conducted between 2008 and 2010; 1083 subjects (aged ≥ 60 years, 372 men, 711 women) completed all examinations on frailty, sarcopenia, and osteoporosis, which were defined using Fried's definition, Asian Working Group for Sarcopenia criteria, and WHO criteria, respectively. The third survey was conducted between 2012 and 2013; 749 of 1083 individuals enrolled from the second survey (69.2%, 248 men, 501 women) completed assessments identical to those in the second survey. RESULTS The prevalence of frailty in the second survey was 5.6% (men, 3.8%; women, 6.6%). The cumulative incidence of frailty was 1.2%/year (men, 0.8%/year; women, 1.3%/year). After adjustment for confounding factors, logistic regression analysis indicated that osteoporosis was significantly associated with the occurrence of frailty (odds ratio, 3.07; 95% confidence interval, 1.26-7.36; p = 0.012). Moreover, the occurrence of frailty significantly increased according to the presence of osteoporosis and sarcopenia (odds ratio vs. neither osteoporosis nor sarcopenia: osteoporosis alone, 2.50; osteoporosis and sarcopenia, 5.80). CONCLUSIONS Preventing osteoporosis and coexistence of osteoporosis and sarcopenia may help reduce the risk of frailty.
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Affiliation(s)
- N Yoshimura
- Department of Prevention Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - S Muraki
- Department of Prevention Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical and Research Center, The University of Tokyo, Tokyo, 113-8655, Japan
| | - T Iidaka
- Department of Prevention Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - R Kodama
- Department of Orthopaedic Surgery, Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - C Horii
- Department of Orthopaedic Surgery, Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - H Kawaguchi
- JCHO Tokyo Shinjuku Medical Center, Tokyo, 162-8542, Japan
| | - K Nakamura
- National Rehabilitation Center for Persons with Disabilities, Saitama, 359-0042, Japan
| | - T Akune
- National Rehabilitation Center for Persons with Disabilities, Saitama, 359-0042, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
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11
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Yozu A, Katsuhira J, Oka H, Matsudaira K. Hemodynamic response of the cerebral cortex during walking with truncal support. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.991] [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: 10/28/2022]
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12
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Fukushima S, Kikuchi H, Miyazu M, Hamada A, Ouchi K, Takagi H, Mihara H, Sasaki T, Oka H, Bosch-Castells V, Oster P. A Safety and Immunogenicity Study of a Single Dose of a Meningococcal (Groups A, C, W, and Y) Polysaccharide Diphtheria Toxoid Conjugate Vaccine (MEN-ACWY-D) in Healthy Japanese Participants. Jpn J Infect Dis 2018; 71:402-407. [PMID: 29962480 DOI: 10.7883/yoken.jjid.2017.277] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Meningococcal disease can cause significant disability and mortality. The quadrivalent meningococcal polysaccharide diphtheria toxoid conjugate vaccine (Men-ACWY-D) protects against invasive meningococcal disease caused by serogroups A, C, W, and Y. This phase III, open-label, single-arm, multicenter study evaluated the safety and immunogenicity of a single vaccine dose in healthy Japanese adults. The study enrolled 200 participants between 2 and 55 years of age. Immunogenicity was assessed by quantifying the seroprotection rates (the proportion of participants with antibody titers ≥ 1:128 against the capsular polysaccharide from all 4 serogroups measured 28 days after vaccination). Safety endpoints included occurrence, nature, time to onset, duration, intensity, relationship to vaccination, and outcome of solicited and unsolicited adverse events (AEs) and serious AEs (SAEs). Participants included 194 adults, 2 adolescents, and 4 children. Among adults, the seroprotection rates for serogroups A, C, W, and Y were 91.2%, 80.2%, 89.1%, and 93.8%, respectively. Seroconversion rates (the proportion of participants with pre-vaccination titers of < 1:4 and a ≥ 4-fold rise from baseline) were 87.3%, 83.0%, 94.4%, and 96.4%, respectively. No immediate AEs, adverse reactions, SAEs, or deaths were reported for any age group. Men-ACWY-D is well tolerated and immunogenic, eliciting antibodies against capsular polysaccharides from all 4 serogroups in Japanese adults.
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Oka H, Ishida Y, Hong G, Nguyen PTT. Perceptions of dental students in Japanese national universities about studying abroad. Eur J Dent Educ 2018; 22:e1-e6. [PMID: 27246258 DOI: 10.1111/eje.12212] [Citation(s) in RCA: 3] [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] [Accepted: 05/03/2016] [Indexed: 06/05/2023]
Abstract
PURPOSE Dental faculties in Japan have organised many short-term international exchange programs to enable their undergraduates to study abroad. However, not many students apply for those programs. In this present study, we attempted to clarify the factors that discourage undergraduate dental students from studying abroad. METHODS We administered a questionnaire survey to 512 undergraduate dental students in three national universities located in different areas in Japan. RESULTS Although 61.7% of the participants expressed interest in studying abroad, only 19.1% of them had prior experiences of study abroad or plans to do so. Their main worries were about lack of sufficient language ability in academic fields. Comparing those who were interested in studying abroad with those who were not revealed significant differences regarding their concern about lack of language ability and lack of specialised knowledge in dentistry. Participants who did not want to study abroad indicated that they did not perceive a purpose in doing so and cited not having foreign friends as a problem. Household income was significantly correlated with concerns about overall expenses. CONCLUSION Overall, language ability and academic knowledge appeared to be the two strongest factors affecting dental students' consideration of studying abroad. Dental schools in Japan can use the findings of this study to improve their undergraduate exchange programs in such a way as to stimulate greater interest amongst their students.
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Affiliation(s)
- H Oka
- Department of International Collaboration Development for Dentistry, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Ishida
- Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - G Hong
- Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University, Miyagi, Japan
| | - P T T Nguyen
- Department of International Collaboration Development for Dentistry, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
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Matsuoka O, Patel DM, Sasaki S, Oka H, Sasaki T, Pietrobon PJ, Laot T, Bouckenooghe A, Menezes J, de Bruyn G. Safety and immunogenicity of Clostridium difficile toxoid vaccine in Japanese adults. Hum Vaccin Immunother 2017; 14:322-328. [PMID: 29116880 PMCID: PMC5806652 DOI: 10.1080/21645515.2017.1395538] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This was a randomized, placebo-controlled, Phase I/II study conducted in a Japanese cohort to assess the safety and immunogenicity of Clostridium difficile vaccine (the same formulation as that used in the ongoing global Phase III study). Healthy Japanese adults aged 40-75 years were randomized to receive either C. difficile vaccine (N = 67) or placebo (N = 34) by intramuscular injection on Days 0, 7, and 30. Serum IgG specific for toxins A and B was measured by enzyme-linked immunosorbent assay (ELISA) and in vitro functional activity by toxin neutralizing assay (TNA). The seroconversion rate (percentage of participants with a ≥4-fold rise in antibody levels from baseline) was high for both toxin A (ELISA and TNA) and toxin B (ELISA), approaching 100% for each by Day 60. For toxin B assessed by TNA, however, the response was lower, with the seroconversion rate not rising significantly beyond the value of 42.9% seen on Day 14 (44.4% at Day 60). Although the response in the participants who were seronegative at baseline was slower than that in those who were seropositive, seroconversion was seen in nearly all (100%) subjects by Day 60, with the exception of the response to toxin B evaluated using TNA (16-18% on Days 14-60). The proportion of participants with solicited local reactions, solicited systemic reactions, and vaccine-related unsolicited reactions were 67.6%, 19.1%, and 20.6%, respectively. Most of the adverse reactions were mild to moderate in intensity, occurring within 3 days post-vaccination, and resolving by 3-6 days post-vaccination. There were no withdrawals due to adverse events and no serious adverse events. These data confirm the safety and immunogenicity of C. difficile vaccine in Japanese adults.
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Affiliation(s)
| | - Dhaval M Patel
- b Sanofi Pasteur, Research and Development , Swiftwater , PA , USA
| | - Shin Sasaki
- c Sanofi K.K., Sanofi Pasteur Medical , Tokyo , Japan
| | - Hayato Oka
- c Sanofi K.K., Sanofi Pasteur Medical , Tokyo , Japan
| | - Toru Sasaki
- d Sanofi K.K., Medical Operation , Tokyo , Japan
| | | | - Thelma Laot
- e Sanofi Pasteur, Global Clinical Science , Manila , Philippines
| | | | | | - Guy de Bruyn
- b Sanofi Pasteur, Research and Development , Swiftwater , PA , USA
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15
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Iidaka T, Muraki S, Oka H, Kodama R, Tanaka S, Kawaguchi H, Nakamura K, Akune T, Yoshimura N. Radiographic measurements of the hip joint and their associations with hip pain in Japanese men and women: the Research on Osteoarthritis/osteoporosis Against Disability (ROAD) study. Osteoarthritis Cartilage 2017; 25:2072-2079. [PMID: 28844568 DOI: 10.1016/j.joca.2017.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 07/31/2017] [Accepted: 08/17/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate radiographic measurements of the hip joint and their associations with hip pain, and the prevalence of acetabular dysplasia defined by radiographic measurements of the hip joint in Japanese men and women using the large-scale population-based cohort of the Research on Osteoarthritis/osteoporosis Against Disability (ROAD) study. METHODS From the baseline survey of the ROAD study (cross-sectional study), 2963 participants (1040 men, 1923 women; mean age, 70.2 years) were analyzed. All participants underwent radiographic examinations of both hips using an anteroposterior view under weight-bearing. Minimum joint space width (mJSW), central-edge (CE) angle, acetabular depth-to-width ratio (ADR), and acetabular head index (AHI) were measured. Associations between these radiographic measurements and hip pain were assessed by calculating odds ratios (ORs) using multivariable logistic-regression analysis. Acetabular dysplasia was defined as a CE angle <20°. RESULTS Mean radiographic measurements of the hip joint for men were: mJSW, 3.8 mm; CE angle, 30.6°; ADR, 262.1 per 1000; and AHI, 81.4%. For women, these values were: mJSW, 3.4 mm; CE angle, 29.9°; ADR, 262.7 per 1000; and AHI, 81.2%. Associations were seen between hip pain and each of mJSW, CE angle, ADR, and AHI (OR 4.52, 95% confidence interval 3.45-5.97; 1.14, 1.11-1.18; 1.31, 1.24-1.40; and 1.15, 1.12-1.18, respectively). Acetabular dysplasia showed an overall prevalence of 13.9%, and was significantly more prevalent in women than in men (P = 0.012). CONCLUSION The present study of radiographic measurements of the hip joint showed that mJSW, CE angle, ADR, and AHI were associated with hip pain.
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Affiliation(s)
- T Iidaka
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - S Muraki
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - R Kodama
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - H Kawaguchi
- Department of Orthopaedic Surgery, Japan Community Health Care Organization Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - K Nakamura
- National Rehabilitation Center for Persons with Disabilities, Saitama, Japan
| | - T Akune
- National Rehabilitation Center for Persons with Disabilities, Saitama, Japan
| | - N Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan.
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Umehara T, Oka H, Nakahara A, Matsuno H, Toyoda C. Serum free triiodothyronine in Parkinson’s disease: A novel biomarker of weight variation and motor severity. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Nakahara A, Umehara T, Matsuno H, Oka H. Efficacy of Rotigotine for abnormal nocturnal blood pressure fall in Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2583] [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: 12/01/2022]
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18
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Takezawa H, Katsumori T, Tamura A, Fujii A, Goto Y, Yokoya S, Oka H, Hashimoto Y, Hino A. Two neuro-interventionists treated twice or more patients than one neuro-interventionist did. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3118] [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: 11/17/2022]
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19
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Oka H, Nishikawa M, Takeishi T, Yamaguchi J, Nishi M, Hayashi T, Kobayashi K. Calculation Code of System Effect Using Serial Reactor Model. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a22669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Oka
- Kyushu University, Graduate School of Engineering Science Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan 81-92-642-3785
| | - M. Nishikawa
- Kyushu University, Graduate School of Engineering Science Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan 81-92-642-3785
| | - T. Takeishi
- Kyushu University, Graduate School of Engineering Science Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan 81-92-642-3785
| | - J. Yamaguchi
- Kyushu University, Graduate School of Engineering Science Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan 81-92-642-3785
| | - M. Nishi
- Tritium Process Laboratory, Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
| | - T. Hayashi
- Tritium Process Laboratory, Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
| | - K. Kobayashi
- Tritium Process Laboratory, Japan Atomic Energy Research Institute, Tokai, Ibaraki, Japan
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Umehara T, Nakahara A, Matsuno H, Toyoda C, Oka H. Body weight and dysautonomia in early Parkinson's disease. Acta Neurol Scand 2017; 135:560-567. [PMID: 27357472 DOI: 10.1111/ane.12633] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Patients with Parkinson's disease (PD) begin to lose weight several years before diagnosis, which suggests weight variation is associated with some factor(s) that precede the onset of motor symptoms. This study aimed to investigate the association of autonomic nervous system with body weight in patients with PD. MATERIALS AND METHODS The subjects were 90 patients with early de novo PD. We examined the associations of body mass index (BMI) with sympathetic nervous activity reflected in orthostatic intolerance or cardiac uptake of 123 I-metaiodobenzylguanidine and parasympathetic nervous activity reflected in constipation or heart rate variability (HRV). RESULTS Twelve patients (13.3%) were overweight (BMI>25 kg/m2 ), 62 patients (68.9%) were normal-weight (18.5≦BMI<25 kg/m2 ), and 16 patients (17.8%) were underweight (BMI<18.5 kg/m2 ). Underweight patients had greater disease severity and decrease in blood pressure on head-up tilt-table testing, higher cardiac washout ratio of 123 I-metaiodobenzylguanidine, and lower HRV and complained of constipation more often than those with normal-weight or overweight patients. On multiple regression analyses, the correlation of these variables with BMI maintained statistical significance after adjustment for age, sex, symptom duration, and motor subtype. CONCLUSIONS Dysautonomia and disease severity are closely related to body weight independently of age, sex, symptom duration, and motor subtype. Dysautonomia may play a partial role on weight variation in the early stage of PD.
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Affiliation(s)
- T. Umehara
- Department of Neurology; Daisan Hospital; The Jikei University School of Medicine; Tokyo Japan
| | - A. Nakahara
- Department of Neurology; Daisan Hospital; The Jikei University School of Medicine; Tokyo Japan
| | - H. Matsuno
- Department of Neurology; The Jikei University School of Medicine; Tokyo Japan
| | - C. Toyoda
- Department of Neurology; The Jikei University School of Medicine; Tokyo Japan
| | - H. Oka
- Department of Neurology; Daisan Hospital; The Jikei University School of Medicine; Tokyo Japan
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21
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Oka H. P11.10 Atypical teratoid/rhabdoid tumor in the internal auditory canal. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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Yoshimura N, Muraki S, Oka H, Iidaka T, Kodama R, Kawaguchi H, Nakamura K, Tanaka S, Akune T. Is osteoporosis a predictor for future sarcopenia or vice versa? Four-year observations between the second and third ROAD study surveys. Osteoporos Int 2017; 28:189-199. [PMID: 27885410 DOI: 10.1007/s00198-016-3823-0] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [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: 03/31/2016] [Accepted: 10/26/2016] [Indexed: 11/25/2022]
Abstract
UNLABELLED In a 4-year follow-up study that enrolled 1099 subjects aged ≥60 years, sarcopenia prevalence was estimated at 8.2%. Moreover, the presence of osteoporosis was significantly associated with short-term sarcopenia occurrence, but the reciprocal relationship was not observed, suggesting that osteoporosis would increase the risk of osteoporotic fracture and sarcopenia occurrence. INTRODUCTION The present 4-year follow-up study was performed to clarify the prevalence, incidence, and relationships between sarcopenia (SP) and osteoporosis (OP) in older Japanese men and women. METHODS We enrolled 1099 participants (aged, ≥60 years; 377 men) from the second survey of the Research on Osteoarthritis/Osteoporosis against Disability (ROAD) study (2008-2010) and followed them up for 4 years. Handgrip strength, gait speed, skeletal muscle mass, and bone mineral density were assessed. SP was defined according to the Asian Working Group for Sarcopenia. OP was defined based on the World Health Organization criteria. RESULTS SP prevalence was 8.2% (men, 8.5%; women, 8.0%) in the second survey. In those with SP, 57.8% (21.9%; 77.6%) had OP at the lumbar spine L2-4 and/or femoral neck. SP cumulative incidence was 2.0%/year (2.2%/year; 1.9%/year). Multivariate regression analysis revealed that OP was significantly associated with SP occurrence within 4 years (odds ratio, 2.99; 95% confidence interval, 1.46-6.12; p < 0.01), but the reciprocal relationship was not significantly observed (2.11; 0.59-7.59; p = 0.25). CONCLUSIONS OP might raise the short-term risk of SP incidence. Therefore, OP would not only increase the risk for osteoporotic fracture but may also increase the risk for SP occurrence.
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Affiliation(s)
- N Yoshimura
- Department of Joint Disease Research, 22nd Century Medical and Research Center, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - S Muraki
- Department of Joint Disease Research, 22nd Century Medical and Research Center, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical and Research Center, The University of Tokyo, Tokyo, 113-8655, Japan
| | - T Iidaka
- Department of Joint Disease Research, 22nd Century Medical and Research Center, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - R Kodama
- Department of Orthopaedic Surgery, Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - H Kawaguchi
- JCHO Tokyo Shinjuku Medical Center, Tokyo, 162-8542, Japan
| | - K Nakamura
- National Rehabilitation Center for Persons with Disabilities, Saitama, 359-0042, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - T Akune
- National Rehabilitation Center for Persons with Disabilities, Saitama, 359-0042, Japan
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Abstract
Destruction of cementum and alveolar bone is the main causative event for the exfoliation of teeth as a consequence of periodontitis. Prostaglandin E2 (PGE2) and PGE receptor subtypes (EPs) play an important role in modulating osteoblast-mediated osteoclastogenesis; however, no information is available on the role of PGE2 and EPs in regulating cementoblast-mediated cementoclastogenesis. We hypothesized that the PGE2-EPs pathway also regulates cementoblasts’ ability to activate cementoclasts. For these studies, OCCM-30 cells (a mouse cementoblast cell line) were exposed to PGE2 and specific EP agonists. PGE2 (100 ng/mL) and EP4 agonist (1 μM) up-regulated RANKL and IL-6 mRNA levels, while they down-regulated OPG mRNA expression. The EP4 antagonist (1 μM) eliminated these effects of PGE2. PGE2 treatment of co-cultures of OCCM-30 cells with bone marrow cells induced TRAP-positive cells via the EP4 pathway. These findings suggest that PGE2 promotes cementoblast-mediated cementoclastogenesis by regulating the expression of RANKL and OPG via the EP4 pathway.
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Affiliation(s)
- H Oka
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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Takagi K, Kanemitsu H, Tomukai N, Oka H, Tamura A, Kohno M, Mitsuda K, Yoshida S, Sano K. Changes of superoxide dismutase activity and ascorbic acid in focal cerebral ischaemia in rats. Neurol Res 2016; 14:26-30. [PMID: 1351255 DOI: 10.1080/01616412.1992.11740006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Free radical reactions are supposed to cause ischaemic brain damage, and active oxygens can initiate these chains reaction. If active oxygens play important roles in ischaemic brain damage, the activity of superoxide dismutase, scavenger of superoxide anion, is supposed to decrease in ischaemic brain. The reduced form of ascorbic acid also scavenges superoxide anion. In rat middle cerebral artery focal ischaemia, we investigated the changes in superoxide dismutase activity and the concentration of reduced ascorbate up to 48 hours. Middle cerebral artery territory of each cerebral hemisphere was homogenized. The supernatant was divided into two aliquots; one was dialysed to remove ascorbate and the other was not. The enzyme activity of the dialysed specimen from the ischaemic hemisphere did not decrease within 4 h after the arterial occlusion. The activity of the dialysed specimen from the nonischaemic side remained unchanged during the examination. Reduced ascorbate levels in nondialysed samples showed similar changes to the superoxide dismutase activities in the dialysed samples. Our data suggest that ascorbic acid may exert the enzyme activity and that the enzyme activity remains at the normal level in the early phase of ischaemia despite the irreversible ischaemic changes that take place within 4 h after the onset of ischaemia.
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Affiliation(s)
- K Takagi
- Department of Neurosurgery, University Hospital, Teikyo University School of Medicine, Kawasaki-shi, Japan
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Oka H, Kanemitsu H, Nihei H, Nakayama H, Tamura A, Sano K. Change of xanthine dehydrogenase and xanthine oxidase activities in rat brain following complete ischaemia. Neurol Res 2016; 14:321-4. [PMID: 1360627 DOI: 10.1080/01616412.1992.11740077] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We studied the activities of xanthine dehydrogenase and xanthine oxidase in rat forebrain after complete ischaemia. Complete ischaemia was induced by decapitation after transcardiac infusion with saline. The activities of xanthine dehydrogenase and xanthine oxidase immediately after ischaemia were 93.3 +/- 38.7 and 18.8 +/- 7.7 microU/mg protein, respectively, and at 24 h after ischaemia were 183.5 +/- 75.1 and 60.8 +/- 15.2 microU/mg protein, respectively. The ratios of xanthine dehydrogenase/xanthine oxidase immediately and 24 h after ischaemia were 5.04 +/- 1.03 and 3.04 +/- 0.99, respectively. These data indicate that xanthine dehydrogenase and xanthine oxidase activities were maintained even 24 h after complete ischaemia. Conversion of xanthine dehydrogenase to xanthine oxidase proceeds slowly during complete ischaemia.
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Affiliation(s)
- H Oka
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo, Japan
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Yoshimura N, Muraki S, Oka H, Tanaka S, Kawaguchi H, Nakamura K, Akune T. THU0464 Osteoporosis, Not Osteoarthritis, Could Predict The Occurrence of Sarcopenia in The Near Future: A 4-Year Follow-up of The Road Study. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Muraki S, Akune T, Oka H, Tanaka S, Kawaguchi H, Nakamura K, Yoshimura N. SAT0431 Threshold of Joint Space Width for Knee Pain: The Road Study. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2302] [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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Ono K, Ohashi S, Oka H, Kadono Y, Omata Y, Matsumoto T, Izawa N, Nishino J, Tanaka S, Tohma S. AB1058 The New Joint Weighted Scoring System Which Predicts The Modified Health Assessment Questionnaires Scores in Rheumatoid Arthritis Patients: A Validation Study Using The National Database of Rheumatic Diseases by iR-net in Japan. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4505] [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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Ono D, Shibue Y, Kurokawa M, Oka H. Mild encephalitis/encephalopathy with a reversible splenial lesion caused by Legionnaires’ disease presenting with cerebellar ataxia symptoms and impaired consciousness. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Iidaka T, Muraki S, Akune T, Oka H, Kodama R, Tanaka S, Kawaguchi H, Nakamura K, Yoshimura N. Prevalence of radiographic hip osteoarthritis and its association with hip pain in Japanese men and women: the ROAD study. Osteoarthritis Cartilage 2016; 24:117-23. [PMID: 26241774 DOI: 10.1016/j.joca.2015.07.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [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: 01/26/2015] [Revised: 07/17/2015] [Accepted: 07/20/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Although hip osteoarthritis (OA) is a major cause of hip pain and disability in elderly people, few epidemiologic studies have been performed. We investigated the prevalence of radiographic hip OA and its association with hip pain in Japanese men and women using a large-scale population of a nationwide cohort study, Research on Osteoarthritis/osteoporosis Against Disability (ROAD). METHODS From the baseline survey of the ROAD study, 2975 participants (1043 men and 1932 women), aged 23-94 years (mean 70.2 years), living in urban, mountainous, and coastal communities were analyzed. The radiographic severity at both hips was determined by the Kellgren/Lawrence (K/L) grading system. Radiographic hip OA was defined as K/L ≥ 2, and severe radiographic hip OA as K/L ≥ 3. RESULTS The crude prevalence of radiographic hip OA was 18.2% and 14.3% in men and women, respectively, that of severe radiographic hip OA was 1.34% and 2.54%, and that of symptomatic K/L ≥ 2 OA was 0.29% and 0.99%, respectively. The crude prevalence of hip OA, including severe OA, was not age-dependent in men or women. Male sex was a risk factor for radiographic hip OA, whereas female sex was a risk factor for severe radiographic hip OA and hip pain. Compared with K/L = 0/1, hip pain was significantly associated with K/L ≥ 3, but not with K/L = 2. CONCLUSION The present cross-sectional study revealed the prevalence of radiographic hip OA and severe hip OA in Japanese men and women. Hip pain was strongly associated with K/L ≥ 3.
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Affiliation(s)
- T Iidaka
- Department of Joint Disease Research, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Muraki
- Department of Clinical Motor System Medicine, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan.
| | - T Akune
- National Rehabilitation Center for Persons with Disabilities, Saitama, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - R Kodama
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Kawaguchi
- Department of Orthopaedic Surgery, Japan Community Healthcare Organization Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - K Nakamura
- National Rehabilitation Center for Persons with Disabilities, Saitama, Japan
| | - N Yoshimura
- Department of Joint Disease Research, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Kurishiba R, Endo T, Miyazaki N, Wang Y, Oka H, Sato Y, Sawa A, Hashimoto N, Ohnuki S. B23-P-16Multi-layer Method combined with Nano-indentation, FIB and XTEM for Nano-hardness Measurement. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Yoshimura N, Muraki S, Oka H, Tanaka S, Kawaguchi H, Nakamura K, Akune T. Factors affecting changes in the serum levels of 25-hydroxyvitamin D: a 3-year follow-up of the ROAD study. Osteoporos Int 2015; 26:2597-605. [PMID: 26089134 DOI: 10.1007/s00198-015-3184-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 09/02/2014] [Accepted: 05/19/2015] [Indexed: 01/09/2023]
Abstract
UNLABELLED In this 3-year population-based cohort study, among 1346 subjects, the mean annual change in the serum 25-hydroxyvitamin D levels was 7.6 %/year, which tended to increase during the 3-year period. Multivariate regression analysis indicated that the L2-4 bone mineral density and total daily energy intake were significant independent associated factors. INTRODUCTION The aim of this study was to clarify the change rate of the serum levels of 25-hydroxyvitamin D (25D) and the associated factors in a general Japanese population during a 3-year period. METHODS The baseline survey of Research on Osteoarthritis/osteoporosis Against Disability study (ROAD), a large-scale population-based cohort study, was performed between 2005 and 2007, and a follow-up survey was repeated 3 years later. Among 1690 participants at baseline, the change rate of the serum 25D levels were assessed in 1346 individuals (79.6 %; 458 men and 888 women) who completed measurements of 25D at both the baseline and follow-up examinations. The change rate was calculated, and the factors associated with the changes in the 25D levels were determined using multivariate regression analysis after adjustment for age, gender, body mass index, participated month, and regional differences at baseline. RESULTS The mean (standard deviation) change rate of the 25D levels in all subjects was 7.6 (13.3) %/year (men, 8.2 [12.4] %/year; women, 7.3 [13.7] %/year). Multivariate regression analysis indicated that higher bone mineral density at lumbar spine L2-4 (p = 0.05) and total daily energy intake (p = 0.04) were significantly associated with the change rate of the 25D levels. CONCLUSIONS The serum levels of 25D tended to increase over the 3-year period, and higher lumbar bone mineral density and daily energy intake were found to be associated with increases in the 25D levels over time.
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Affiliation(s)
- N Yoshimura
- Department of Joint Disease Research, 22nd Century Medical and Research Center, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - S Muraki
- Department of Clinical Motor System Medicine, 22nd Century Medical and Research Center, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical and Research Center, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Kawaguchi
- JCHO Tokyo Shinjuku Medical Center, 5-1, Tsukudo-cho, Shinjyuku-ku, Tokyo, 162-8542, Japan
| | - K Nakamura
- National Rehabilitation Center for Persons with Disabilities, 1, Namiki 4-chome, Tokorozawa City, Saitama Prefecture, 359-8555, Japan
| | - T Akune
- National Rehabilitation Center for Persons with Disabilities, 1, Namiki 4-chome, Tokorozawa City, Saitama Prefecture, 359-8555, Japan
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Omata Y, Hagiwara F, Nishino J, Nakayama H, Matsui T, Oka H, Yasui T, Ono K, Kadono Y, Tohma S, Tanaka S. SAT0092 Predictors for Functional Disability in Postmenopausal Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5910] [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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Yoshimura N, Muraki S, Oka H, Tanaka S, Kawaguchi H, Nakamura K, Akune T. SAT0297 Prognosis of Vitamin D Insufficiency: A 3-Year Follow-Up of the Road Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3005] [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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Omata Y, Koizumi Y, Oka H, Yasui T, Ohashi S, Ono K, Shoda N, Yoshimura N, Kadono Y, Nishino J, Tanaka S. AB0402 Comparison of Quantitative Measurement of Knee Radiographs Revealed that Lateral Joint Space Narrowing Suggested Rheumatoid Arthritis Rather than Osteoarthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3933] [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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Muraki S, Akune T, Oka H, Tanaka S, Kawaguchi H, Nakamura K, Yoshimura N. AB1174 Knee Symptoms are More Strongly Associated with Quadriceps Muscle Strength than Grip Strength or Muscle Mass: The Road Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2961] [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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Ono K, Ohashi S, Oka H, Kadono Y, Yasui T, Omata Y, Shoda N, Tanaka S. SAT0287 Factors Associated with Spine Strength Assessed by Finite Element Analysis of Clinical Computed Tomography Increase in Response to Daily Teriparatide Treatment in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4665] [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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Matsumoto Y, Lee JH, Morimoto T, Nakanishi R, Nishimura S, Baba T, Oka H, Kakei S, Okada Y, Ando H, Kawamata T. Quantitative evaluation of movement disorder of wrist joint in patients with cerebral, thalamic and cerebellar stroke. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1820] [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: 11/16/2022]
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Yoshimura N, Muraki S, Oka H, Nakamura K, Kawaguchi H, Tanaka S, Akune T. Serum levels of 25-hydroxyvitamin D and the occurrence of musculoskeletal diseases: a 3-year follow-up to the road study. Osteoporos Int 2015; 26:151-61. [PMID: 25138262 DOI: 10.1007/s00198-014-2844-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 03/07/2014] [Accepted: 08/06/2014] [Indexed: 12/18/2022]
Abstract
UNLABELLED Assessment of serum 25-hydroxyvitamin D levels in association with the occurrence of musculoskeletal diseases using a population-based cohort study design revealed that serum 25-hydroxyvitamin D levels could predict the occurrence of osteoporosis at the femoral neck within 3 years, but not the occurrence of knee osteoarthritis or lumbar spondylosis. INTRODUCTION The aim of this study is to clarify the association between serum 25-hydroxyvitamin D (25D) levels and occurrence of osteoporosis and osteoarthritis in the general population. METHODS The Research on Osteoarthritis/Osteoporosis Against Disability study, a large-scale population-based cohort study, was performed during 2005-2007. Serum 25D levels were measured in 1,683 participants. Of these, 1,384 individuals (81.9%) completed a second follow-up survey 3 years later. Osteoporosis was defined according to World Health Organization criteria, in which osteoporosis is diagnosed by T-scores of bone mineral density (BMD) that are 2.5 standard deviations (SD) less than normal BMD. Knee osteoarthritis and lumbar spondylosis were defined as Kellgren-Lawrence grade ≥2, using paired X-ray films. Cumulative incidences were determined according to changes in measurements using World Health Organization criteria for osteoporosis or Kellgren-Lawrence grades for osteoarthritis between the baseline and second survey. RESULTS The mean (SD) serum 25D level of the 1,384 participants in both surveys was 23.4 ng/mL (6.5). The annual cumulative incidences of osteoporosis at L2-4 and the femoral neck were 0.76 and 1.83%/year, respectively. The incidences of knee osteoarthritis and lumbar spondylosis were 3.3 and 11.4%/year, respectively. After adjusting for potential associated factors, logistic regression analyses revealed that the odds ratio for the occurrence of femoral neck osteoporosis significantly decreased as serum 25D levels increased (+1 SD; odds ratio 0.67; 95% confidence interval 0.49-0.92; p = 0.014). CONCLUSIONS Higher serum 25D levels may prevent the occurrence of osteoporosis at the femoral neck, but not knee osteoarthritis, lumbar spondylosis, or osteoporosis at L2-4.
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Affiliation(s)
- N Yoshimura
- Department of Joint Disease Research, 22nd Century Medical and Research Center, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan,
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Ono K, Ohashi S, Oka H, Kadono Y, Yasui T, Isawa K, Shoda N, Nishino J, Tanaka S, Tohma S. THU0562 The Impacts of Disease of the Joints on Modified Health Assessment Questionnaire Scores in Rheumatoid Arthritis Patients: A Retrospective Study Using the National Database of Rheumatic Diseases by Ir-Net in Japan. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Muraki S, Akune T, Tanaka S, Kawaguchi H, Nakamura K, Oka H, Yoshimura N. SAT0444 Does Osteophytosis at the Knee PREDICT Health-Related Quality of Life Decline? A 3-Year Follow-Up of the ROAD Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4934] [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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Oka H, Ohashi S, Kadono Y, Yasui T, Ono K, Isawa K, Yoshimura N, Nishino J, Tanaka S. FRI0241 Assessment of Joint Destruction at the Knee in Rheumatoid Arthritis Using Semi-Automated Software for Magnetic Resonance Image Analysis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3099] [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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Yoshimura N, Muraki S, Oka H, Tanaka S, Kawaguchi H, Nakamura K. SAT0079 Mutual Associations among Musculoskeletal Diseases, Metabolic Syndrome, and Cognitive Impairment: A 3-Year Follow-Up of the ROAD Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3577] [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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Ohashi S, Kadono Y, Yasui T, Ono K, Oka H, Nishino J, Tanaka S, Mori T, Masuda K, Iwasawa M, Matsui T, Tohma S. THU0567 Using the National Database of Rheumatic Diseases by Ir-Net in Japan to Investigate Factors Influencing Medium-Term Physical Function following Total Knee and Total Hip Arthroplasty. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3985] [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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Aoki A, Oka H, Nakamura M, Aoki I. AB0564 Starting Dose of Prednisolone for Japanese Patients with Polymyalgia Rheumatica. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1157] [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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Yoshimura N, Nagata K, Muraki S, Oka H, Yoshida M, Enyo Y, Kagotani R, Hashizume H, Yamada H, Ishimoto Y, Teraguchi M, Tanaka S, Kawaguchi H, Toyama Y, Nakamura K, Akune T. Prevalence and progression of radiographic ossification of the posterior longitudinal ligament and associated factors in the Japanese population: a 3-year follow-up of the ROAD study. Osteoporos Int 2014; 25:1089-98. [PMID: 23974860 DOI: 10.1007/s00198-013-2489-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [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: 05/14/2013] [Accepted: 08/05/2013] [Indexed: 01/22/2023]
Abstract
SUMMARY The prevalence of radiographic cervical ossification of the posterior longitudinal ligament (OPLL) in 1,562 Japanese from a population-based cohort was 1.9 %. The presence of OPLL showed a significant association with the femoral neck bone mineral density (BMD), presence of diffuse idiopathic skeletal hyperostosis (DISH) and plasma pentosidine levels. Only one new case of radiographic OPLL was detected, but OPLL progressed in all affected subjects. INTRODUCTION The purpose of this study was to clarify the prevalence and progression of radiographic OPLL and the associated factors, using the population-based cohort Research on Osteoarthritis/osteoporosis Against Disability (ROAD). METHODS In the ROAD study, 1,690 participants underwent X-ray examination of the entire spine and both knees. Radiographic OPLL, lumbar spondylosis, knee osteoarthritis and DISH were diagnosed by a single, well-experienced orthopaedic surgeon. An interviewer-administered questionnaire and tests for anthropometric measurements were administered, and the BMDs of the lumbar spine and proximal femur were determined. A new OPLL case was considered if heterotopic ossification in the posterior longitudinal ligament was absent at baseline but present during follow-up. Progression was defined as an increase in the maximum length or width of the ossification at follow-up over that at baseline. RESULTS Radiographic OPLL was detected in 30 (17 men, 13 women) of 1,562 individuals who underwent X-ray examination of the cervical spine (prevalence = 1.9 %). Its prevalence was significantly higher in men than in women (p = 0.007), but no association with age was observed. In a logistic regression analysis, OPLL showed a significant association with the femoral neck BMD, presence of DISH and plasma pentosidine levels. Only one new case of radiographic OPLL was detected, but OPLL progressed in all affected subjects. CONCLUSION This population-based study clarified the prevalence of radiographic OPLL in the Japanese population as well as its progression. OPLL showed significant association with plasma pentosidine levels, BMD and DISH.
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Affiliation(s)
- N Yoshimura
- Department of Joint Disease Research, 22nd Century Medical and Research Center, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan,
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Akune T, Muraki S, Oka H, Tanaka S, Kawaguchi H, Nakamura K, Yoshimura N. Exercise habits during middle age are associated with lower prevalence of sarcopenia: the ROAD study. Osteoporos Int 2014; 25:1081-8. [PMID: 24146097 DOI: 10.1007/s00198-013-2550-z] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [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: 07/08/2013] [Accepted: 10/03/2013] [Indexed: 01/01/2023]
Abstract
SUMMARY The present cross-sectional study investigated the prevalence of sarcopenia and clarified its associated factors in 1,000 elderly participants of Japanese population-based cohorts. Exercise habit in middle age was associated with low prevalence of sarcopenia in older age, suggesting that it is a protective factor against sarcopenia in older age. INTRODUCTION The present study investigated the prevalence of sarcopenia using the European Working Group on Sarcopenia in Older People (EWGSOP) definition, and clarified the association of sarcopenia with physical performance in the elderly participants of Japanese population-based cohorts of the Research on Osteoarthritis/osteoporosis Against Disability (ROAD) study. METHODS We enrolled 1,000 participants (aged ≥65 years) from the second visit of the ROAD study who had completed assessment of handgrip strength, gait speed, and skeletal muscle mass measured by bioimpedance analysis. Presence of sarcopenia was determined according to the EWGSOP algorithm. Information collected included exercise habits in middle age. RESULTS Prevalence of sarcopenia was 13.8 % in men and 12.4 % in women, and tended to be significantly higher according to increasing age in both sexes. Factors associated with sarcopenia, as determined by logistic regression analysis, were chair stand time (odds ratio [OR], 1.09; 95 % confidence interval [CI], 1.04-1.14), one-leg standing time (OR, 0.97; 95 % CI, 0.96-0.99), and exercise habit in middle age (OR, 0.53; 95 % CI, 0.31-0.90). Exercise habit in middle age was associated with low prevalence of sarcopenia in older age. Furthermore, linear regression analysis revealed that exercise habits in middle age were significantly associated with grip strength (P < .001), gait speed (P < .001), and one-leg standing time (P = .005) in older age. CONCLUSIONS This cross-sectional study suggests that exercise habit in middle age is a protective factor against sarcopenia in older age and effective in maintaining muscle strength and physical performance in older age.
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Affiliation(s)
- T Akune
- Department of Clinical Motor System Medicine, 22nd Century Medical and Research Center, Graduate School of Medicine, University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo, 113-8655, Japan,
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Kageji T, Oka H, Obata F, Tani K, Bando H, Tabata R, Kohno M. New support system using a mobile device for diagnostic image display and treatment of acute stroke in Japanese depopulated areas. Crit Care 2014. [PMCID: PMC4069488 DOI: 10.1186/cc13644] [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: 11/12/2022] Open
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Teraguchi M, Yoshimura N, Hashizume H, Muraki S, Yamada H, Minamide A, Oka H, Ishimoto Y, Nagata K, Kagotani R, Takiguchi N, Akune T, Kawaguchi H, Nakamura K, Yoshida M. Prevalence and distribution of intervertebral disc degeneration over the entire spine in a population-based cohort: the Wakayama Spine Study. Osteoarthritis Cartilage 2014; 22:104-10. [PMID: 24239943 DOI: 10.1016/j.joca.2013.10.019] [Citation(s) in RCA: 279] [Impact Index Per Article: 27.9] [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] [Received: 05/23/2013] [Revised: 10/22/2013] [Accepted: 10/29/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVES The purposes of this study were to investigate the prevalence and distribution of intervertebral disc degeneration (DD) over the entire spine using magnetic resonance imaging (MRI), and to examine the factors and symptoms potentially associated with DD. DESIGN This study included 975 participants (324 men, mean age of 67.2 years; 651 women, mean age of 66.0 years) with an age range of 21-97 years in the Wakayama Spine Study. DD on MRI was classified into Pfirrmann's system (grades 4 and 5 indicating DD). We assessed the prevalence of DD at each level in the cervical, thoracic, and lumbar regions and the entire spine, and examined DD-associated factors and symptoms. RESULTS The prevalence of DD over the entire spine was 71% in men and 77% in women aged <50 years, and >90% in both men and women aged >50 years. The prevalence of an intervertebral space with DD was highest at C5/6 (men: 51.5%, women: 46%), T6/7 (men: 32.4%, women: 37.7%), and L4/5 (men: 69.1%, women: 75.8%). Age and obesity were associated with the presence of DD in all regions. Low back pain was associated with the presence of DD in the lumbar region. CONCLUSION The current study established the baseline data of DD over the entire spine in a large population of elderly individuals. These data provide the foundation for elucidating the causes and mechanisms of DD.
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Affiliation(s)
- M Teraguchi
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - N Yoshimura
- Department of Joint Disease Research, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Hashizume
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan.
| | - S Muraki
- Department of Clinical Motor System Medicine, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Yamada
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - A Minamide
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Oka
- Department of Joint Disease Research, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Y Ishimoto
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - K Nagata
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - R Kagotani
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - N Takiguchi
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - T Akune
- Department of Clinical Motor System Medicine, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Kawaguchi
- Department of Sensory & Motor System Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Nakamura
- Rehabilitation Services Bureau, National Rehabilitation Center for Persons with Disabilities, Saitama, Japan
| | - M Yoshida
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
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Yoshimura N, Muraki S, Oka H, Morita M, Yamada H, Tanaka S, Kawaguchi H, Nakamura K, Akune T. Profiles of vitamin D insufficiency and deficiency in Japanese men and women: association with biological, environmental, and nutritional factors and coexisting disorders: the ROAD study. Osteoporos Int 2013; 24:2775-87. [PMID: 23673463 DOI: 10.1007/s00198-013-2372-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [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: 09/13/2012] [Accepted: 04/09/2013] [Indexed: 12/12/2022]
Abstract
UNLABELLED Assessments of serum 25-hydroxyvitamin D levels in 1,683 Japanese from a population-based cohort revealed prevalences of vitamin D insufficiency and deficiency were 81.3 and 1.2%, respectively. Vitamin D deficiency was significantly associated with female sex, examined month, current smoking, lack of regular walking, higher intact parathyroid hormone (iPTH), and poor daily vitamin D intake. INTRODUCTION To clarify the characteristics of subjects with vitamin D insufficiency and deficiency among men and women in the general Japanese population. METHODS We initiated research on osteoarthritis/osteoporosis against disability (ROAD), a large-scale population-based cohort study, in 2005-2007. Blood examination was performed to measure serum 25-hydroxyvitamin D (25D) and iPTH levels and biochemical markers of bone turnover in 1,683 participants (595 men, 1,088 women). Participants completed an interviewer-administered questionnaire, measurements of bone mineral density, and x-ray examination. Vitamin D deficiency and insufficiency were defined by serum 25D levels <10 and ≥10 but <30 ng/mL, respectively. RESULTS The prevalence of vitamin D insufficiency and deficiency was 81.3 and 1.2%, respectively. Multinominal logistic regression analyses using potentially confounding variables revealed vitamin D insufficiency was significantly associated with age (+1 year, relative risk ratio, 0.98; 95% confidence interval, 0.96-0.99), gender (women vs. men, 2.28; 1.59-3.30), residing areas (coastal area vs. mountainous area, 0.58; 0.41-0.81), examined month (October, November, December vs. January, 0.51; 0.34-0.76), and serum levels of iPTH (+1 pg/mL, 1.02; 1.01-1.03). Vitamin D deficiency was significantly characterised by female sex (20.5; 3.1-136.7), examined month (0.28; 0.09-0.95), current smoking habit (6.39; 1.78-23.0), lack of regular outside walking (3.96; 1.34-11.7), higher iPTH (1.02; 1.01-1.03) and poor daily vitamin D intake (+10 μg/day, 0.48; 0.24-0.93). CONCLUSIONS A high prevalence of vitamin D insufficiency and a low prevalence of vitamin D deficiency were found in Japanese men and women, and the characteristics of vitamin D status were clarified.
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Affiliation(s)
- N Yoshimura
- Department of Joint Disease Research, 22nd Century Medical and Research Center, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan,
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