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Wang KL, Zhang M, Li Q, Kan H, Liu HY, Mu YT, Li ZG, Cao YM, Dong Y, Hu AQ, Zheng YJ. [Association between gestational diabetes mellitus and preterm birth subtypes]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:809-815. [PMID: 37221072 DOI: 10.3760/cma.j.cn112338-20220927-00815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Objective: To investigate the association between gestational diabetes mellitus (GDM) and preterm birth subtypes. Methods: Based on the cohort of pregnant women in Anqing Prefectural Hospital, the pregnant women who received prenatal screening in the first or second trimesters were recruited into baseline cohorts; and followed up for them was conducted until delivery, and the information about their pregnancy status and outcomes were obtained through electronic medical record system and questionnaire surveys. The log-binomial regression model was used to explore the association between GDM and preterm birth [iatrogenic preterm birth, spontaneous preterm birth (preterm premature rupture of membranes and preterm labor)]. For multiple confounding factors, the propensity score correction model was used to compute the adjusted association. Results: Among the 2 031 pregnant women with a singleton delivery, the incidence of GDM and preterm birth were 10.0% (204 cases) and 4.4% (90 cases) respectively. The proportions of iatrogenic preterm birth and spontaneous preterm birth in the GDM group (n=204) were 1.5% and 5.9% respectively, while the proportions in non-GDM group (n=1 827) were 0.9% and 3.2% respectively, and the difference in the proportion of spontaneous preterm birth between the two groups was significant (P=0.048). Subtypes of spontaneous preterm were further analyzed, and the results showed that the proportions of preterm premature rupture of membranes and preterm labor in the GDM group were 4.9% and 1.0% respectively, while the proportions in the non-GDM group were 2.1% and 1.1% respectively. It showed that the risk of preterm premature rupture of membranes in GDM pregnant women was 2.34 times (aRR=2.34, 95%CI: 1.16-4.69) higher than that in non-GDM pregnant women. Conclusions: Our results showed that GDM might increase the risk of preterm premature rupture of membranes. No significant increase in the proportion of preterm labor in pregnant women with GDM was found.
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Affiliation(s)
- K L Wang
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, Key Laboratory for Health Technology Assessment, National Commission of Health/School of Public Health, Fudan University, Shanghai 200032, China
| | - M Zhang
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, Key Laboratory for Health Technology Assessment, National Commission of Health/School of Public Health, Fudan University, Shanghai 200032, China
| | - Q Li
- Department of Obstetrics and Gynecology, Anqing Prefectural Hospital, Anhui Province, Anqing 246003, China
| | - H Kan
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, Key Laboratory for Health Technology Assessment, National Commission of Health/School of Public Health, Fudan University, Shanghai 200032, China
| | - H Y Liu
- Department of Clinical Laboratory, Anqing Prefectural Hospital, Anhui Province, Anqing 246003, China
| | - Y T Mu
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, Key Laboratory for Health Technology Assessment, National Commission of Health/School of Public Health, Fudan University, Shanghai 200032, China
| | - Z G Li
- Department of Clinical Laboratory, Anqing Prefectural Hospital, Anhui Province, Anqing 246003, China
| | - Y M Cao
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, Key Laboratory for Health Technology Assessment, National Commission of Health/School of Public Health, Fudan University, Shanghai 200032, China
| | - Y Dong
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, Key Laboratory for Health Technology Assessment, National Commission of Health/School of Public Health, Fudan University, Shanghai 200032, China
| | - A Q Hu
- Department of Clinical Laboratory, Anqing Prefectural Hospital, Anhui Province, Anqing 246003, China
| | - Y J Zheng
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, Key Laboratory for Health Technology Assessment, National Commission of Health/School of Public Health, Fudan University, Shanghai 200032, China
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Komaki S, Nakagawa S, Arai Y, Inoue A, Kaihara K, Hino M, Kan H, Kenji Takahashi. Cartilage degeneration of patellofemoral joint occurs in open wedge high tibial osteotomy, rather than in hybrid closed wedge high tibial osteotomy, during the early postoperative period: A qualitative analysis using MRI T 2 mapping. J Orthop Surg (Hong Kong) 2023; 31:10225536221151132. [PMID: 36757867 DOI: 10.1177/10225536221151132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
PURPOSE After high tibial osteotomy, the patella may change position and osteoarthritis of the patellofemoral joint (PFJ) may occur. It was hypothesized that the course of PFJ degeneration would differ between open wedge high tibial osteotomy (OWHTO) and hybrid closed wedge high tibial osteotomy (hybrid HTO). Accordingly, this study aimed to evaluate the qualitative changes in PFJ articular cartilage, during the early postoperative period after OWHTO and hybrid HTO. METHODS This was a retrospective observational study of 75 knees that underwent OWHTO (N = 37) or hybrid HTO (N = 38) for medial knee osteoarthritis. OWHTO and hybrid HTO were indicated for corrections of less than 10° and more than 10°, respectively. MRI of all knees was performed before and 6 months after surgery to evaluate patellar cartilage in sagittal images for T2 mapping. Three regions of interest (medial, middle, and lateral facets) were defined in the articular cartilage, and T2 values were measured. Patellar tilting angle, lateral shift ratio, and patellar height were compared before and after surgery. RESULTS There was no significant change in arthroscopic findings of PFJ articular cartilage between the OWHTO and hybrid HTO groups. In the OWHTO group, the mean T2 value of medial and middle facets increased significantly (lateral, 43.0 ± 3.9 to 43.7 ± 3.5; middle, 44.2 ± 3.9 to 46.2 ± 3.8; medial 41.0 ± 4.3 to 42.4 ± 4.0). Conversely, no significant change was observed in the hybrid HTO group (lateral, 41.1 ± 4.0 to 42.3 ± 4.0; middle, 43.6 ± 4.2 to 44.5 ± 4.3; medial, 40.7 ± 4.1 to 41.5 ± 4.5). Patellar height decreased and increased in the OWHTO and hybrid HTO groups, respectively, and patellar tilt decreased in the OWHTO group. Lateral shift ratio decreased significantly in both groups. CONCLUSIONS OWHTO with a small correction angle may result in qualitative changes in PFJ articular cartilage from an early stage, while hybrid HTO with a relatively large correction angle is unlikely to affect PFJ articular cartilage.
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Affiliation(s)
- Shintaro Komaki
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan.,Department of Orthopaedics, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shuji Nakagawa
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsuo Inoue
- Department of Orthopaedics, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenta Kaihara
- Department of Orthopaedics, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Manabu Hino
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan.,Department of Orthopaedics, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyuki Kan
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan.,Department of Orthopaedics, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenji Takahashi
- Department of Orthopaedics, Graduate School of Medical Science, 12898Kyoto Prefectural University of Medicine, Kyoto, Japan
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Huang G, Li W, Kan H, Lu X, Liao W, Zhao X. Genetic influences of the effect of circulating inflammatory cytokines on osteoarthritis in humans. Osteoarthritis Cartilage 2022:S1063-4584(22)00961-X. [PMID: 36529415 DOI: 10.1016/j.joca.2022.12.007] [Citation(s) in RCA: 2] [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] [Received: 05/04/2022] [Revised: 12/05/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The causal relationship between inflammatory cytokines and Osteoarthritis (OA) has not been well investigated. This study investigated the causal role of inflammatory cytokines in the risk of OA and total joint arthroplasty using the Mendelian randomization (MR) method. METHOD Single nucleotide polymorphisms (SNPs) robustly associated with inflammatory cytokines were used as instrumental variables. The inverse-variance weighted (IVW) method with false discovery rate (FDR) adjusted P-value (q-value) for multiple comparisons were used as the main MR method to estimate causal effects based on the summary-level data for OA (knee and hip OA, respectively) and total joint arthroplasty (TJA). Sensitivity analyses validated the robustness of the results and ensured the absence of heterogeneity and horizontal pleiotropy. RESULTS After FDR adjustment, macrophage colony-stimulating factor (MCSF) and vascular endothelial growth factor (VEGF) were identified as causally associated with knee OA (MCSF, odds ratio [OR]: 1.16, 95% confidence interval [CI]: 1.09-1.23, q = 5.05 × 10-5; VEGF, OR: 1.09, 95% CI: 1.04-1.15, q = 0.011). We also observed that genetically predicted MCSF and VEGF were positively associated with the risk of TJA, and MCP3 was negatively associated with for the risk of TJA, although the effects seem fairly modest. Sensitivity analysis further excluded the influence of heterogeneity and horizontal pleiotropy. CONCLUSIONS Inflammatory cytokines, namely MCSF and VEGF, were causally associated with knee OA, which could enhance our understanding of inflammation in OA pathology.
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Affiliation(s)
- G Huang
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Tramatology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - W Li
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Tramatology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - H Kan
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - X Lu
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Tramatology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - W Liao
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Tramatology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - X Zhao
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Orthopedics and Tramatology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China.
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Prins A, Naarding K, Holst van der M, Verschuuren J, Niks E, Kan H. IMAGING. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.361] [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: 10/20/2022]
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Geuens S, Sleurs C, Lemiere J, Verly M, Niks E, Goemans N, Kan H, De Waele L, Doorenweerd N. IMAGING. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.353] [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: 10/20/2022]
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Abbassi-Daloii T, Abdellaoui SE, Voortman L, Meuffels D, van Arkel E, Raz V, ’t Hoen P, Kan H. NEW INSIGHTS INTO CELLULAR OR MUSCLE FUNCTION. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.335] [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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Keene K, Beenakker J, Notting I, de Nie J, Verschuuren J, Kan H, Tannemaat M. NEUROMUSCULAR JUNCTION RELATED DISORDERS. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.322] [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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Doorenweerd N, Hoegen M, Broek E, Hollingsworth K, Marini-Bettolo C, Hendriksen J, Niks E, Straub V, Kan H. DMD - BRAIN. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.162] [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: 10/20/2022]
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Ikelaar N, Hendriksen R, van Dijk J, Kerkhof F, Reijntjes R, Roest A, van Osch M, Kan H, Thijs R, Doorenweerd N, Niks E. DMD - BRAIN. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.161] [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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Zhang M, Zhu YM, Li YX, Mou YT, Kan H, Fan W, Dai JH, Zheng YJ. [Formation of study population for causal inference]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1292-1298. [PMID: 34814546 DOI: 10.3760/cma.j.cn112338-20200612-00839] [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: 06/13/2023]
Abstract
Epidemiological analysis describes and compares the characteristics of a certain number of people to make causal inferences. The formation of the study population is always the first step. In this paper, we first define the concepts of cross-sections at both individual level and population level and introduce the three assumptions needed in the measurements in observational studies, i. e. the true values of the attributes are stable with time, the attribute variables are independent and the individuals are independent during the measuring process. We also determine that the causal inference research should be unified based on the time of the occurrence or beginning of a postulated cause, or exposure, should be in. Then, based on the dual roles of the population cross-section with causal thinking, we propose that research designs can be classified into two types with different characteristics: history reconstruction research and future exploration research. Finally, we briefly analyze the research design framework and the relationship between estimated effects and different designs. The discussion of the formation of a study population from the perspective of causal thinking can make a foundation for the classification of causal inference research design with appropriate effect parameters, which needs to be further studied.
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Affiliation(s)
- M Zhang
- Department of Epidemiology/Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning/Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y M Zhu
- Department of Epidemiology/Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning/Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y X Li
- Department of Epidemiology/Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning/Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y T Mou
- Department of Epidemiology/Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning/Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - H Kan
- Department of Epidemiology/Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning/Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - W Fan
- Department of Epidemiology/Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning/Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - J H Dai
- Department of Epidemiology and Biostatistics, School of Public Health, Xinjiang Medical University, Urumqi 830011, China
| | - Y J Zheng
- Department of Epidemiology/Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning/Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
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Vicedo-Cabrera AM, Scovronick N, Sera F, Royé D, Schneider R, Tobias A, Astrom C, Guo Y, Honda Y, Hondula DM, Abrutzky R, Tong S, de Sousa Zanotti Stagliorio Coelho M, Saldiva PHN, Lavigne E, Correa PM, Ortega NV, Kan H, Osorio S, Kyselý J, Urban A, Orru H, Indermitte E, Jaakkola JJK, Ryti N, Pascal M, Schneider A, Katsouyanni K, Samoli E, Mayvaneh F, Entezari A, Goodman P, Zeka A, Michelozzi P, de’Donato F, Hashizume M, Alahmad B, Diaz MH, De La Cruz Valencia C, Overcenco A, Houthuijs D, Ameling C, Rao S, Ruscio FD, Carrasco-Escobar G, Seposo X, Silva S, Madureira J, Holobaca IH, Fratianni S, Acquaotta F, Kim H, Lee W, Iniguez C, Forsberg B, Ragettli MS, Guo YLL, Chen BY, Li S, Armstrong B, Aleman A, Zanobetti A, Schwartz J, Dang TN, Dung DV, Gillett N, Haines A, Mengel M, Huber V, Gasparrini A. The burden of heat-related mortality attributable to recent human-induced climate change. Nat Clim Chang 2021; 11:492-500. [PMID: 34221128 PMCID: PMC7611104 DOI: 10.1038/s41558-021-01058-x] [Citation(s) in RCA: 196] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 04/20/2021] [Indexed: 05/19/2023]
Abstract
Climate change affects human health; however, there have been no large-scale, systematic efforts to quantify the heat-related human health impacts that have already occurred due to climate change. Here, we use empirical data from 732 locations in 43 countries to estimate the mortality burdens associated with the additional heat exposure that has resulted from recent human-induced warming, during the period 1991-2018. Across all study countries, we find that 37.0% (range 20.5-76.3%) of warm-season heat-related deaths can be attributed to anthropogenic climate change and that increased mortality is evident on every continent. Burdens varied geographically but were of the order of dozens to hundreds of deaths per year in many locations. Our findings support the urgent need for more ambitious mitigation and adaptation strategies to minimize the public health impacts of climate change.
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Affiliation(s)
- A. M. Vicedo-Cabrera
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
| | - N. Scovronick
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - F. Sera
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- Department of Statistics, Computer Science and Applications ‘G. Parenti’, University of Florence, Florence, Italy
| | - D. Royé
- Department of Geography, University of Santiago de Compostela, Santiago de Compostela, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - R. Schneider
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- Φ-Lab, European Space Agency (ESA-ESRIN), Frascati, Italy
- The Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
- European Centre for Medium-Range Weather Forecast (ECMWF), Reading, UK
| | - A. Tobias
- Institute of Environmental Assessment and Water Research, Spanish Council for Scientific Research, Barcelona, Spain
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - C. Astrom
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Y. Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Y. Honda
- Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
| | - D. M. Hondula
- School of Geographical Sciences and Urban Planning, Arizona State University, Tempe, AZ, USA
| | - R. Abrutzky
- Facultad de Ciencias Sociales, Instituto de Investigaciones Gino Germani, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - S. Tong
- Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- School of Public Health, Institute of Environment and Population Health, Anhui Medical University, Hefei, China
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | | | | | - E. Lavigne
- Air Health Science Division, Health Canada, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - P. Matus Correa
- Department of Public Health, Universidad de los Andes, Santiago, Chile
| | - N. Valdes Ortega
- Department of Public Health, Universidad de los Andes, Santiago, Chile
| | - H. Kan
- School of Public Health, Fudan University, Shanghai, China
| | - S. Osorio
- Department of Environmental Health, University of São Paulo, São Paulo, Brazil
| | - J. Kyselý
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic
| | - A. Urban
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic
| | - H. Orru
- Institute of Family Medicine and Public Health, University of Tartu, Tartu, Estonia
| | - E. Indermitte
- Institute of Family Medicine and Public Health, University of Tartu, Tartu, Estonia
| | - J. J. K. Jaakkola
- Center for Environmental and Respiratory Health Research (CERH), University of Oulu, Oulu, Finland
- Finnish Meteorological Institute, Helsinki, Finland
| | - N. Ryti
- Center for Environmental and Respiratory Health Research (CERH), University of Oulu, Oulu, Finland
| | - M. Pascal
- Santé Publique France, Department of Environmental Health, French National Public Health Agency, Saint Maurice, France
| | - A. Schneider
- Institute of Epidemiology, Helmholtz Zentrum München—German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - K. Katsouyanni
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- MRC-PHE Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, London, UK
| | - E. Samoli
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - F. Mayvaneh
- Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, Iran
| | - A. Entezari
- Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, Iran
| | - P. Goodman
- School of Physics, Technological University Dublin, Dublin, Ireland
| | - A. Zeka
- Institute for Environment, Health and Societies, Brunel University London, London, UK
| | - P. Michelozzi
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - F. de’Donato
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - M. Hashizume
- Department of Global Health Policy, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - B. Alahmad
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - M. Hurtado Diaz
- Department of Environmental Health, National Institute of Public Health, Cuernavaca Morelos, Mexico
| | - C. De La Cruz Valencia
- Department of Environmental Health, National Institute of Public Health, Cuernavaca Morelos, Mexico
| | - A. Overcenco
- Laboratory of Management in Science and Public Health, National Agency for Public Health of the Ministry of Health, Chisinau, Republic of Moldova
| | - D. Houthuijs
- Centre for Sustainability and Environmental Health, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - C. Ameling
- Centre for Sustainability and Environmental Health, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - S. Rao
- Norwegian Institute of Public Health, Oslo, Norway
| | - F. Di Ruscio
- Norwegian Institute of Public Health, Oslo, Norway
| | - G. Carrasco-Escobar
- Health Innovation Laboratory, Institute of Tropical Medicine ‘Alexander von Humboldt’, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - X. Seposo
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - S. Silva
- Department of Epidemiology, Instituto Nacional de Saúde Dr Ricardo Jorge, Lisbon, Portugal
| | - J. Madureira
- Department of Enviromental Health, Instituto Nacional de Saúde Dr Ricardo Jorge, Porto, Portugal
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - I. H. Holobaca
- Faculty of Geography, Babes-Bolay University, Cluj-Napoca, Romania
| | - S. Fratianni
- Department of Earth Sciences, University of Torino, Turin, Italy
| | - F. Acquaotta
- Department of Earth Sciences, University of Torino, Turin, Italy
| | - H. Kim
- Graduate School of Public Health & Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
| | - W. Lee
- Graduate School of Public Health & Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
| | - C. Iniguez
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Department of Statistics and Computational Research, Universitat de Valencia, Valencia, Spain
| | - B. Forsberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - M. S. Ragettli
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Y. L. L. Guo
- Environmental and Occupational Medicine, and Institute of Environmental and Occupational Health Sciences, National Taiwan University (NTU) and NTU Hospital, Taipei, Taiwan
- National Institute of Environmental Health Science, National Health Research Institutes, Zhunan,Taiwan
| | - B. Y. Chen
- National Institute of Environmental Health Science, National Health Research Institutes, Zhunan,Taiwan
| | - S. Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - B. Armstrong
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- The Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
| | - A. Aleman
- Department of Preventive Medicine, School of Medicine, University of the Republic, Montevideo, Uruguay
| | - A. Zanobetti
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - J. Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - T. N. Dang
- Department of Environmental Health, Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - D. V. Dung
- Department of Environmental Health, Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - N. Gillett
- Canadian Centre for Climate Modelling and Analysis, Environment and Climate Change Canada, Victoria, British Colombia, Canada
| | - A. Haines
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- Φ-Lab, European Space Agency (ESA-ESRIN), Frascati, Italy
| | - M. Mengel
- Potsdam Institute for Climate Impact Research, Potsdam, Germany
| | - V. Huber
- Potsdam Institute for Climate Impact Research, Potsdam, Germany
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Seville, Spain
| | - A. Gasparrini
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- The Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
- Centre for Statistical Methodology, London School of Hygiene & Tropical Medicine, London, UK
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Hino M, Nakagawa S, Arai Y, Inoue H, Kan H, Fujii Y, Ikoma K, Kubo T. Extensor hallucis longus tendon is a new distal landmark for coronal tibial component alignment in total knee arthroplasty: A study of magnetic resonance imaging. J Orthop Surg (Hong Kong) 2020; 28:2309499020912340. [PMID: 32223512 DOI: 10.1177/2309499020912340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
PURPOSE In total knee arthroplasty (TKA), various landmarks are generally used to ensure correct osteotomy. In this study, we examined whether the tibialis anterior tendon (TAT) or the extensor hallucis longus tendon (EHLT) could be used as a landmark of the center of the ankle joint in patients with knee osteoarthrosis (OA), using magnetic resonance imaging (MRI). METHODS The subjects were 61 patients with OA in 79 knees (males: 8 with 9 knees and females: 53 with 70 knees). With the ankle joint secured in the intermediate position, MRI from the knee joint to the ankle joint was performed in the same foot position. We prepared individual lines connecting the center of the ankle joint with the TAT or EHLT to measure the angle difference (ΔA) from Akagi's line in the knee joint. We analyzed whether the ΔA might be affected by deformity of the knee joint or foot region, and tibial torsion. RESULTS At the ankle joint level, the ΔA of EHLT was the smallest, with an average of 1.6 ± 3.4°. The ΔA for the femorotibial angle, hallux valgus angle, and varus-valgus angle showed no correlations with deformity of the knee joint and foot region, or tibial torsion. CONCLUSIONS MRI findings showed that EHLT would be useful as a landmark of the ankle joint center in extramedullary tibial osteotomy in TKA for medial knee OA. It was also clarified that the landmark would not be affected by severe deformity of the knee joint, deformity of the foot region, or external torsion of the tibia.
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Affiliation(s)
- Manabu Hino
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Shuji Nakagawa
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroaki Inoue
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyuki Kan
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Yuta Fujii
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuya Ikoma
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Kan H, Nakagawa S, Hino M, Komaki S, Arai Y, Inoue H, Takahashi K. Arthroscopic Fixation Technique for Avulsion Fracture of the Posterior Cruciate Ligament From the Tibia. Arthrosc Tech 2020; 9:e1819-e1824. [PMID: 33294346 PMCID: PMC7695752 DOI: 10.1016/j.eats.2020.08.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 08/06/2020] [Indexed: 02/03/2023] Open
Abstract
This study describes an arthroscopic pullout fixation technique for small and comminuted avulsion fractures of the posterior cruciate ligament from the tibia. Intra-articular surgery required 3 arthroscopic portals, the anterolateral, anteromedial, and posteromedial portals. To simplify surgery, the posterolateral portal was omitted. A 2.4-mm K-wire was inserted through the anterior incision to the center of the bone fragment. This central guidewire was subsequently overdrilled with a 4.0-mm cannulated drill. The fixation material consisted of Pass Telos artificial ligaments inserted through the fiber loop of a fixed suspensory device such as RIGIDLOOP. The leading end of the thread of the RIGIDLOOP was pulled out through the anteromedial portal. The button of RIGIDLOOP was gradually advanced through the bone tunnel. The button was pulled out and flipped over the bony fragment. The artificial ligament was pulled distally to reduce the bony fragment, and fixed onto the tibia using a ligament button while applying anterior drawer force to the proximal tibia with the knee flexed at 90°. This minimally invasive procedure was successful in treating small and comminuted avulsion fracture of the tibial attachment of the posterior cruciate ligament.
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Affiliation(s)
- Hiroyuki Kan
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Shuji Nakagawa
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Manabu Hino
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Shintaro Komaki
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan,Address correspondence to Yuji Arai, M.D., Ph.D., Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan.
| | - Hiroaki Inoue
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenji Takahashi
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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van de Velde N, Hooijmans M, Koeks Z, Alleman I, Veeger T, Sardjoe-Mishre A, van Zwet E, Verschuuren J, Niks E, Kan H. MUSCLE IMAGING – MRI. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Cameron D, Burakiewicz J, van de Velde N, Baligand C, Veeger T, Hooijmans M, Verschuuren J, Niks E, Kan H. DMD & BMD – CLINICAL. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.058] [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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16
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Naarding K, Keene K, Mishre AS, Veeger T, de Velde NV, Verschuuren J, Van der Holst M, Niks E, Kan H. MUSCLE IMAGING – MRI. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.169] [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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17
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Veeger T, van Zwet E, al Mohamad D, Naarding K, Hooijmans M, Niks E, de Groot J, Kan H. MUSCLE IMAGING – MRI. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fujii Y, Nakagawa S, Arai Y, Inoue H, Kan H, Hino M, Kaihara K, Mikami Y. Clinical outcomes after medial patellofemoral ligament reconstruction: an analysis of changes in the patellofemoral joint alignment. Int Orthop 2020; 45:1215-1222. [PMID: 32770307 DOI: 10.1007/s00264-020-04765-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 07/28/2020] [Indexed: 01/15/2023]
Abstract
PURPOSE Medial patellofemoral ligament (MPFL) reconstruction using the hamstring tendon is widely performed to treat recurrent patellar dislocation. MPFL reconstruction includes a post-operative process of necrosis and reperfusion of the hamstring tendon graft. We hypothesise that the patella gradually shifts laterally because of this process, ultimately affecting the patellofemoral joint alignment. This study aimed to analyse the chronological changes in the patellofemoral joint alignment and the outcomes of MPFL reconstruction. METHODS In this retrospective case-series study, the Knee Society, Lysholm, and Kujala scores were evaluated in 24 consecutive patients (27 knees). To evaluate patellar tracking defects, radiographic indices including the tilting angle, the lateral shift ratio, and the congruence angle were measured before, immediately after, and three, 12, and 36 months after MPFL reconstruction. RESULTS Post-operative Kujala, Knee Society, and Lysholm scores for the study population significantly improved relative to the pre-operative scores. The tilting and congruence angles at three months after the operation significantly increased relative to those recorded immediately after the operation. The tilting and congruence angles were not significantly different at three, 12, and 36 months after the operation. CONCLUSIONS The post-operative outcomes of MPFL reconstruction for recurrent patellar dislocation were favourable. Insufficient union between the bone tunnel and tendon graft, along with an elongation of the necrotic tendon graft, may change the alignment of the patellofemoral joint within three months after the operation. Therefore, we believe it is necessary to refrain from knee rotation that places lateral stress on the patella until three months after the operation.
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Affiliation(s)
- Yuta Fujii
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shuji Nakagawa
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajiicho 465, Kawaramachi-Hirokoji, Kamigyo-Ku, Kyoto, 602-8566, Japan
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajiicho 465, Kawaramachi-Hirokoji, Kamigyo-Ku, Kyoto, 602-8566, Japan.
| | - Hiroaki Inoue
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyuki Kan
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Manabu Hino
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Kenta Kaihara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuo Mikami
- Department of Rehabilitation Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Lin Z, Niu Y, Jiang Y, Chen B, Peng L, Mi T, Huang N, Li W, Xu D, Chen R, Kan H. Protective effects of dietary fish‐oil supplementation on skin inflammatory and oxidative stress biomarkers induced by fine particulate air pollution: a pilot randomized, double‐blind, placebo‐controlled trial*. Br J Dermatol 2020; 184:261-269. [DOI: 10.1111/bjd.19156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Z. Lin
- School of Public Health Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment Fudan University Shanghai 200032 China
- Department of Toxicology School of Public Health Anhui Medical University Hefei 230032 China
| | - Y. Niu
- School of Public Health Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment Fudan University Shanghai 200032 China
| | - Y. Jiang
- School of Public Health Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment Fudan University Shanghai 200032 China
| | - B. Chen
- School of Public Health Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment Fudan University Shanghai 200032 China
| | - L. Peng
- Shanghai Typhoon Institute/CMA Shanghai Key Laboratory of Meteorology and Health Shanghai 200030 China
| | - T. Mi
- Unilever Research and Development Center Shanghai 200335 China
| | - N. Huang
- Unilever Research and Development Center Shanghai 200335 China
| | - W. Li
- Key Laboratory of Reproduction Regulation of National Population and Family Planning Commission Shanghai Institute of Planned Parenthood Research Institute of Reproduction and Development Fudan University Shanghai 200032 China
| | - D. Xu
- Department of Toxicology School of Public Health Anhui Medical University Hefei 230032 China
| | - R. Chen
- School of Public Health Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment Fudan University Shanghai 200032 China
- Shanghai Typhoon Institute/CMA Shanghai Key Laboratory of Meteorology and Health Shanghai 200030 China
| | - H. Kan
- School of Public Health Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment Fudan University Shanghai 200032 China
- Key Laboratory of Reproduction Regulation of National Population and Family Planning Commission Shanghai Institute of Planned Parenthood Research Institute of Reproduction and Development Fudan University Shanghai 200032 China
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Li YJ, Kan H, He YN, Li YX, Mu YT, Dai JH, Zheng YJ. [May cross-sectional studies provide causal inferences?]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:589-593. [PMID: 32344487 DOI: 10.3760/cma.j.cn112338-20191030-00770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Due to the flaws inherited in synchronicity, statistical association and survivor bias on variables under measurement, a common 'consensus' has been reached on "cross-sectiional studies (CSS) can lead to failure on causal inference". In this paper, under both causal thinking and diagram, the real and measured cross-sections are clearly defined that these two concepts only exist theoretically. In real CSS research, the temporal orders of measured variables are all non-synchronic, equivalent to the assumption that measurement variables are independent to each other, or there is no differentiated classification bias. Similar to cumulative case-control or historical cohort studies, both exposure and outcome that exist or occur before their measurements in cross-sectional studies, are actions of historical reconstruction or doing 'Archaeology'. One of the common preconditions for causal inference in such studies is that: there must be a causal relation between the measured variables and their historical counterparts. The measured variables are all agents of their corresponding real counterparts, and the temporal orders are not that important in causal inference. It is necessary to better understand the analytic role of the CSS.
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Affiliation(s)
- Y J Li
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - H Kan
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y N He
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y X Li
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y T Mu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - J H Dai
- Department of Epidemiology and Biostatistics, School of Public Health, Xinjiang Medical University, Urumqi 830011, China
| | - Y J Zheng
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
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Kan H, Zhang M, Zheng YJ. [On 'Negative control methods': related principles, methods and applications]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:594-598. [PMID: 32344488 DOI: 10.3760/cma.j.cn112338-20191109-00796] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Negative control methods (NCM) are developed based on the idea that negative controls should be tested with negative results. It also extends to the multiple comparison groups and used for specificity of association in population studies. Negative controls do not take part in studying the causal hypothesis but sharing the same potential bias structures. Under different purposes, NCM can be divided into methods on negative exposure, negative period or negative outcome controls. They are mainly used to detect and control bias, such as: selection bias, confounding bias and measurement bias, but leaving the sample size at secondary importance. Rational application of NCM can help improving the accuracy of causal inference in both experimental and observational processes.
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Affiliation(s)
- H Kan
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - M Zhang
- Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China
| | - Y J Zheng
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory for Health Technology Assessment, National Commission of Health and Family Planning, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
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Affiliation(s)
- N Arai
- Department of RadiologyNagoya City University HospitalNagoya, Japan
| | - H Kan
- Radiological and Medical Laboratory SciencesNagoya University Graduate School of MedicineNagoya, Japan
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Arai N, Kan H, Ogawa M, Uchida Y, Takizawa M, Omori K, Miyati T, Kasai H, Kunitomo H, Shibamoto Y. Visualization of Nigrosome 1 from the Viewpoint of Anatomic Structure. AJNR Am J Neuroradiol 2019; 41:86-91. [PMID: 31806600 DOI: 10.3174/ajnr.a6338] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 10/10/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Parkinson disease is related to neurodegeneration and iron deposition in the substantia nigra pars compacta and nigrosome 1. However, visualization of nigrosome 1 via MR imaging is poor owing to the bilateral asymmetry, regardless of whether it is healthy. We focused on the magic angle and susceptibility effect and evaluated the anatomic slant structure of nigrosome 1 by tilting subjects' heads in the B0 direction. MATERIALS AND METHODS To investigate the effectiveness of the magic angle, we tilted the volunteers' heads to the right and left in the B0 direction or not at all for evaluating correlations between the degree of head tilting and visualization of the right nigrosome 1 and left nigrosome 1 using 3D spoiled gradient-echo sequences with multiecho acquisitions. We evaluated the susceptibility of nigrosome 1 and the local field using quantitative susceptibility mapping to assess static magnetic field inhomogeneity. RESULTS The heads tilted to the right and left showed significantly higher contrasts of nigrosome 1 and the substantia nigra pars compacta than the nontilted heads. No significant differences were observed in the visualization and susceptibility between the right nigrosome 1 and left nigrosome 1 for each head tilt. The effect of the magic angle was remarkable in the nontilted heads. This finding was supported by quantitative susceptibility mapping because the anatomic slant structure of nigrosome 1 was coherent between the axis of nigrosome 1 and the magic angle. CONCLUSIONS The asymmetric visualization of nigrosome 1 is affected by the magic angle and susceptibility. The anatomic slant structure of nigrosome 1 causes these challenges in visualization.
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Affiliation(s)
- N Arai
- From the Department of Radiology (N.A., H. Kasai, H. Kunitomo), Nagoya City University Hospital, Nagoya, Japan
| | - H Kan
- Radiological and Medical Laboratory Sciences (H. Kan), Nagoya University Graduate School of Medicine, Nagoya, Japan.,Departments of Radiology (H. Kan, M.O., Y.S.)
| | - M Ogawa
- Departments of Radiology (H. Kan, M.O., Y.S.)
| | - Y Uchida
- Neurology (Y.U.), Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - M Takizawa
- Healthcare Business Unit (M.T., K.O.), Hitachi Ltd, Tokyo, Japan
| | - K Omori
- Healthcare Business Unit (M.T., K.O.), Hitachi Ltd, Tokyo, Japan
| | - T Miyati
- Division of Health Sciences, Graduate School of Medical Science (T.M.), Kanazawa University, Kanazawa, Japan
| | - H Kasai
- From the Department of Radiology (N.A., H. Kasai, H. Kunitomo), Nagoya City University Hospital, Nagoya, Japan
| | - H Kunitomo
- From the Department of Radiology (N.A., H. Kasai, H. Kunitomo), Nagoya City University Hospital, Nagoya, Japan
| | - Y Shibamoto
- Departments of Radiology (H. Kan, M.O., Y.S.)
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Lionarons J, Hendriksen J, Berns A, Marini-Bettolo C, Hollingsworth K, Goeman J, Straub V, Niks E, Vles J, Kan H, Doorenweerd N. P.283Reading performance in relation to white matter network connectivity detected with MRI in Duchenne muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.397] [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: 10/25/2022]
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Naarding K, Veeger T, Sardjoe Mishre A, Van de Velde N, Verschuuren J, Van der Holst M, Kan H, Niks E. P.305MRI brachialis contractile cross-sectional area is correlated strongest to elbow flexion in non-ambulant Duchenne muscular dystrophy patients. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.419] [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: 10/25/2022]
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Naarding K, Van der Holst M, Van de Velde N, Van Schaik-Bank P, Kan H, Niks E. EP.95Patient perception of outcome measures for non-ambulant Duchenne muscular dystrophy patients. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.501] [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: 10/25/2022]
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Otakara E, Nakagawa S, Arai Y, Inoue H, Kan H, Nakayama Y, Fujii Y, Ueshima K, Ikoma K, Fujiwara H, Kubo T. Large deformity correction in medial open-wedge high tibial osteotomy may cause degeneration of patellofemoral cartilage: A retrospective study. Medicine (Baltimore) 2019; 98:e14299. [PMID: 30702601 PMCID: PMC6380813 DOI: 10.1097/md.0000000000014299] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
To evaluate retrospectively any association between the degree of deformity correction by medial open-wedge high tibial osteotomy (HTO) and patellofemoral joint degeneration. We hypothesized that development of patellofemoral joint degeneration depended on the degree of intraoperative deformity correction.Fifty-seven patients who underwent medial open-wedge HTO for treatment of osteoarthritis in one knee were included in this study. Knees were classified into degeneration (D) and non-degeneration (ND) groups according to worsening of the patellar and/or femoral trochlear cartilage at the time of hardware removal (D group, 27 knees) and no degeneration or improvement (ND group, 30 knees). We compared pre- to post-surgery change in hip-knee-ankle angle (HKA) and medial-proximal-tibial angle (MPTA), open-wedge HTO correction angle, and arthroscopic findings between groups.Mean age, height, weight, and body mass index were 54.1 ± 9.9 years, 160.4 ± 8.7 cm, 66.4 ± 12.1 kg, and 25.7 ± 3.3 kg/m, respectively. Change in both HKA and MPTA differed significantly between groups. The MPTA cut-off values to predict patellofemoral degeneration were determined to be 10°, associated with an AUC of 0.75 (95% confidence interval [CI] 0.62-0.87).This study evaluated retrospectively the effect of the correction angle during medial open-wedge HTO on patellofemoral joint degeneration. If deformity correction exceeds an MPTA of 10° during open-wedge HTO, degeneration of patellofemoral joint needs to be considered.Level of evidence: Level IV.
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Affiliation(s)
- Eigo Otakara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shuji Nakagawa
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroaki Inoue
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyuki Kan
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Yusuke Nakayama
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuta Fujii
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiro Ueshima
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuya Ikoma
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyoshi Fujiwara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Abstract
Human and animal studies have confirmed that inhalation of particles from ambient air or occupational settings not only causes pathophysiological changes in the respiratory system, but causes cardiovascular effects as well. At an equal mass lung burden, nanoparticles are more potent in causing systemic microvascular dysfunction than fine particles of similar composition. Thus, accumulated evidence from animal studies has led to heightened concerns about the potential short- and long-term deleterious effects of inhalation of engineered nanoparticles on the cardiovascular system. This review highlights the new observations from animal studies, which document the adverse effects of pulmonary exposure to engineered nanoparticles on the cardiovascular system and elucidate the potential mechanisms involved in regulation of cardiovascular function, in particular, how the neuronal system plays a role and reacts to pulmonary nanoparticle exposure based on both in vivo and in vitro studies. In addition, this review also discusses the possible influence of altered autonomic nervous activity on preexisting cardiovascular conditions. Whether engineered nanoparticle exposure serves as a risk factor in the development of cardiovascular diseases warrants further investigation.
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Affiliation(s)
- H Kan
- a Health Effects Laboratory Division , National Institute for Occupational Safety and Health , Morgantown , WV , USA.,b Department of Pharmaceutical Sciences , West Virginia University , Morgantown , WV , USA
| | - D Pan
- a Health Effects Laboratory Division , National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - V Castranova
- b Department of Pharmaceutical Sciences , West Virginia University , Morgantown , WV , USA
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Inoue H, Hara K, Arai Y, Nakagawa S, Kan H, Hino M, Fujiwara H, Kubo T. Outcome of Low-Invasive Local Split-Thickness Lengthening for Iliotibial Band Friction Syndrome. Int J Sports Med 2018; 39:232-236. [PMID: 29361639 DOI: 10.1055/s-0043-122152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Conventional surgical methods for iliotibial band friction syndrome (ITBFS) may affect the iliotibial band (ITB), delaying return to sports activities or impeding performance. We have developed a minimally invasive method. This study retrospectively analyzed the outcomes of this procedure in individuals with ITBFS. This study included 34 knees of 31 individuals. Surgery involved lengthening the central part of the ITB by splitting it into a superficial and a deep layer, maintaining the anterior and posterior fibers immediately above the lateral epicondyle. Outcomes included time to resume sports activity, personal best times to run a 5000-m race before and after surgery, and 2-month post-surgery muscle strengths. The mean postoperative time to return to competition was 5.8 weeks. Personal best times of 5000-m race improved in 13 of 17 runners. Two months post-surgery, the mean extensor muscle strengths on the healthy and affected sides did not significantly differ nor did the flexor muscle strengths. In ITBFS, the ITB itself is normal. Lengthening the limited region of the ITB immediately above the lateral femoral epicondyle removes the cause of ITBFS, with a reduction in inflammation. This technique resulted in early return to competition without degrading performance.
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Affiliation(s)
- Hiroaki Inoue
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Orthopaedics, Kyoto, Japan
| | - Kunio Hara
- Japan Community Health care Organization Kyoto Kuramaguchi Medical Center, Department of Orthopaedics, Kyoto, Japan
| | - Yuji Arai
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Sports and Para-Sport Medicine, Kyoto, Japan
| | - Shuji Nakagawa
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Sports and Para-Sport Medicine, Kyoto, Japan
| | - Hiroyuki Kan
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Orthopaedics, Kyoto, Japan
| | - Manabu Hino
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Orthopaedics, Kyoto, Japan
| | - Hiroyoshi Fujiwara
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Orthopaedics, Kyoto, Japan
| | - Toshikazu Kubo
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Department of Orthopaedics, Kyoto, Japan
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Nakai S, Nakatsuka M, Fujita H, Miyanaga N, Jitsuno T, Kanabe T, Izawa Y, Norimatsu T, Takagi M, Yamanaka T, Kato Y, Azechi H, Nishimura H, Shiraga H, Nakai M, Tanaka K, Kodama R, Takabe H, Nishihara K, Mima K, Kitagawa Y, Sakabe S, Yamanaka M, Kosaki Y, Yamanaka C, Sasaki T, Mori Y, Miyazaki K, Nishikawa M, Kan H, Hiruma T, Soman Y, Ito H, Perlado J, Alonso E, Munoz E, Sanz J. Laser Fusion Research at Ile Osaka University. ACTA ACUST UNITED AC 2018. [DOI: 10.13182/fst96-a11963008] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Nakai
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - M. Nakatsuka
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - H. Fujita
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - N. Miyanaga
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - T. Jitsuno
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - T. Kanabe
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - Y. Izawa
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - T. Norimatsu
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - M. Takagi
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - T. Yamanaka
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - Y. Kato
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - H. Azechi
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - H. Nishimura
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - H. Shiraga
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - M. Nakai
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - K.A. Tanaka
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - R. Kodama
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - H. Takabe
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - K. Nishihara
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - K. Mima
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - Y. Kitagawa
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - S. Sakabe
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - M. Yamanaka
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - Y. Kosaki
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - C. Yamanaka
- Institute of Laser Engineering, Osaka University 2-6 Yamada-oka, Suita, Osaka 565 Japan
| | - T. Sasaki
- Faculy of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565 Japan
| | - Y. Mori
- Faculy of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565 Japan
| | - K. Miyazaki
- Faculy of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565 Japan
| | - M. Nishikawa
- Faculy of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565 Japan
| | - H. Kan
- Hamamatsu Photonics K.K. 5000 Hirakuchi, Hamakita, Shizuoka 434 Japan
| | - T. Hiruma
- Hamamatsu Photonics K.K. 5000 Hirakuchi, Hamakita, Shizuoka 434 Japan
| | - Y. Soman
- Mitsubishi Heavy Industries. Ltd. 1-1-1 Wadasaki-cho, Hyogo-ku, Kobe 562 Japan
| | - H. Ito
- Kawasaki Heavy Industries. Ltd. 2-4-25 Minamisuna, Koto-ku, Tokyo 136 Japan
- Members of Laser Fusion Reactor Committee of Laser Society of Japan
| | - J.M. Perlado
- Instituto de Fusion Nuclear, Universidad Politecnica de Madrid 28006 Madrid Spain
| | - E. Alonso
- Instituto de Fusion Nuclear, Universidad Politecnica de Madrid 28006 Madrid Spain
| | - E. Munoz
- Instituto de Fusion Nuclear, Universidad Politecnica de Madrid 28006 Madrid Spain
| | - J. Sanz
- Instituto de Fusion Nuclear, Universidad Politecnica de Madrid 28006 Madrid Spain
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Kan H, van der Zant FM, Wondergem M, Knol RJJ. Incidental extra-cardiac findings on 13N-ammonia myocardial perfusion PET/CT. J Nucl Cardiol 2017; 24:1860-1868. [PMID: 28390039 DOI: 10.1007/s12350-017-0824-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 12/08/2016] [Accepted: 02/06/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND The objective of this study was to describe the prevalence of incidental extra-cardiac findings (IECFs) on myocardial perfusion PET/CTs and the prevalence of potentially clinically relevant and clinically irrelevant IECFs, as well as detection rate of previously unknown malignancies. METHODS AND RESULTS From September 2013 until February 2016, a total of 1397 consecutive patients referred for the evaluation of possible ischemia by 13NH3 PET/CT were prospectively included in a database. IECFs were categorized into three groups: potentially clinically relevant IECFs, IECFs that could potentially cause chest pain, and clinically irrelevant IECFs. Additionally, the prevalence of previously unknown malignancies was determined. In 717 (51%) of these patients, 775 IECFs were reported and 115 IECFs were categorized as potentially clinically relevant in 109 (8%) patients. A total of 145 IECFs that could potentially cause chest pain were detected in 139 (10%) patients and 515 clinically irrelevant IECFs were detected in 469 (34%) of the patients. An unknown primary malignancy was histologically proven in 19 patients (1.4%). CONCLUSIONS IECFs are detected on myocardial perfusion PET/CT in approximately half of the patients. In the present study, IECFs were potentially clinically relevant in 8% of the patients and in 1.4% an unknown malignancy was found, most of which were lung cancers.
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Affiliation(s)
- H Kan
- Cardiac Imaging Division Alkmaar, Northwest Clinics, Alkmaar, The Netherlands.
- Department of Nuclear Medicine, Northwest Clinics, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands.
| | - F M van der Zant
- Cardiac Imaging Division Alkmaar, Northwest Clinics, Alkmaar, The Netherlands
- Department of Nuclear Medicine, Northwest Clinics, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands
| | - M Wondergem
- Cardiac Imaging Division Alkmaar, Northwest Clinics, Alkmaar, The Netherlands
- Department of Nuclear Medicine, Northwest Clinics, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands
| | - R J J Knol
- Cardiac Imaging Division Alkmaar, Northwest Clinics, Alkmaar, The Netherlands
- Department of Nuclear Medicine, Northwest Clinics, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands
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Kan H, Arai Y, Kobayashi M, Nakagawa S, Inoue H, Hino M, Komaki S, Ikoma K, Ueshima K, Fujiwara H, Yokota I, Kubo T. Fixed-flexion view X-ray of the knee superior in detection and follow-up of knee osteoarthritis. Medicine (Baltimore) 2017; 96:e9126. [PMID: 29245351 PMCID: PMC5728966 DOI: 10.1097/md.0000000000009126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
A fixed flexion view (FFV) is useful for evaluating joint space when assessing the severity of osteoarthritis (OA) of the knee. We analyzed changes in joint space revealed by standing extended view (SEV) and FFV over a mean 4 years, to compare both views on their capacity to measure joint space width accurately at particular time points during follow-up.SEV and FFV images were acquired in patients with knee OA. The 81 patients (157 knees) followed up for ≥24 months were selected as study subjects. Medial joint space widths (MJSW), Kellgren-Lawrence (KL) grades, and reductions in MJSW on SEV (ΔSEV) and FFV (ΔFFV) were compared in knees evaluated by SEV and FFV.At both time-points, mean MJSW was significantly lower by FFV than by SEV. Mean MJSW was significantly lower at follow-up than at first examination by both SEV and FFV. At both time-points, the KL grade was higher by FFV than by SEV group. The ΔFFV was significantly greater than the ΔSEV. ΔSEV did not differ significantly among KL grades, but ΔFFV was significantly greater in patients with KL grade II than in patients with other KL grades.FFV is not only useful for evaluating joint space in knees with OA, but also for accurately evaluating the progression of OA. The risk of rapid progression of knee OA may be higher in patients with KL grade II, as determined by FFV. FFV may be superior to SEV in determining appropriate treatment strategies for knee OA.
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Affiliation(s)
- Hiroyuki Kan
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
| | | | - Shuji Nakagawa
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
| | - Hiroaki Inoue
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
| | - Manabu Hino
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine
| | - Shintaro Komaki
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
- Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine
| | - Kazuya Ikoma
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
| | - Keiichiro Ueshima
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
| | - Hiroyoshi Fujiwara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
| | - Isao Yokota
- Department of Biostatistics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine
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Doorenweerd N, Bettolo C, Hollingsworth K, Hendriksen J, Niks E, Straub V, Kan H. Brain imaging indicates genotype-phenotype association in Duchenne muscular dystrophy. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hasegawa H, Okabayashi K, Tsuruta M, Koike J, Funahashi K, Yokomizo H, Yoshimatsu K, Kan H, Yamada T, Ishida H, Ishibashi K, Saida Y, Enomoto T, Katsumata K, Koda K, Ochiai T, Sakamoto K, Ogawa S, Itabashi M, Kameoka S. Updated survival results of FACT trial: Multicenter phase II trial of neoadjuvant chemotherapy with mFOLFOX6 for stage II/III rectal cancer with a T3/T4 tumor. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.033] [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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Kan H, Arai Y, Kobayashi M, Nakagawa S, Inoue H, Hino M, Komaki S, Ikoma K, Ueshima K, Fujiwara H, Kubo T. Radiographic Measurement of Joint Space Width Using the Fixed Flexion View in 1,102 Knees of Japanese Patients with Osteoarthritis in Comparison with the Standing Extended View. Knee Surg Relat Res 2017; 29:63-68. [PMID: 28231651 PMCID: PMC5336370 DOI: 10.5792/ksrr.16.046] [Citation(s) in RCA: 11] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/18/2016] [Accepted: 10/18/2016] [Indexed: 12/22/2022] Open
Abstract
Purpose The fixed flexion view (FFV) of the knee is considered useful for evaluating the joint space when assessing the severity of osteoarthritis (OA) of the knee. To clarify the usefulness of FFV for evaluation of the joint space and severity of knee OA, this study evaluated changes in the joint space on the FFV and standing extended view (SEV) in patients with knee OA. Materials and Methods The SEV and FFV images were acquired in 567 patients (1,102 knees) who visited the hospital with a chief complaint of knee joint pain. Medial joint space width (MJSW) and Kellgren-Lawrence (K-L) classification assessed using the SEV and FFV images were compared. Results Mean MJSW was significantly smaller when assessed on the FFV than on the SEV (3.02±1.55 mm vs. 4.31±1.30 mm; p<0.001). The K-L grade was the same or higher on the FFV than on the SEV. Conclusions The FFV is more useful than the SEV for evaluating the joint space in OA knees. Treatment strategies in patients with knee OA should be determined based on routinely acquired FFV images.
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Affiliation(s)
- Hiroyuki Kan
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | | | - Shuji Nakagawa
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroaki Inoue
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Manabu Hino
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Orthopaedics, Kyoto Interdisciplinary Institute Hospital of Community Medicine, Kyoto, Japan
| | - Shintaro Komaki
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuya Ikoma
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiro Ueshima
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyoshi Fujiwara
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Departments of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Kan H, Arai Y, Nakagawa S, Inoue H, Minami G, Ikoma K, Fujiwara H, Kubo T. Medial and Lateral Discoid Menisci of Both Knees. Knee Surg Relat Res 2016; 28:330-333. [PMID: 27894182 PMCID: PMC5134786 DOI: 10.5792/ksrr.15.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/27/2016] [Accepted: 02/03/2016] [Indexed: 11/24/2022] Open
Abstract
Discoid menisci on both the medial and lateral sides are rare, and there are very few reports on cases involving both sides. We report a case of a 52-year-old female with medial and lateral discoid menisci in both knees. Arthroscopy revealed the lateral menisci of both knees were complete discoid menisci, and partial meniscectomy was performed. The medial menisci were incomplete discoid menisci, but there were no findings of abnormal mobility or injury; therefore, the medial menisci were observed without treatment. At six months postoperatively, her pain and range of motion restrictions disappeared.
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Affiliation(s)
- Hiroyuki Kan
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Arai
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shuji Nakagawa
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroaki Inoue
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ginjiro Minami
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuya Ikoma
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyoshi Fujiwara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Gershman A, Chiang K, Do M, Abbink E, Harbers V, Audebert C, Campana-Salort E, Monforte M, Iyadurai S, Carey L, Heskamp L, Kan H, Heerschap A, Kissel J, Ricci E, Attarian S, Blackburn K, Mendlein J, Ashlock M. A randomized, double-blinded, placebo-controlled, multiple ascending dose study to evaluate the safety, tolerability, pharmacokinetics, immunogenicity, and biological activity of ATYR1940 in adult patients with facioscapulohumeral muscular dystrophy (FSHD). Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.293] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nakagawa S, Arai Y, Inoue H, Kan H, Hino M, Ichimaru S, Ikoma K, Fujiwara H, Amaya F, Sawa T, Kubo T. Comparative Effects of Periarticular Multimodal Drug Injection and Single-Shot Femoral Nerve Block on Pain Following Total Knee Arthroplasty and Factors Influencing Their Effectiveness. Knee Surg Relat Res 2016; 28:233-8. [PMID: 27595078 PMCID: PMC5009049 DOI: 10.5792/ksrr.2016.28.3.233] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/14/2016] [Accepted: 03/27/2016] [Indexed: 11/04/2022] Open
Abstract
Purpose This study compared the analgesic effects of local infiltration analgesia (LIA) and femoral nerve block (FNB) after total knee arthroplasty (TKA) and assessed factors associated with analgesia obtained by these two methods. Materials and Methods Study subjects included 66 patients (72 knees) who underwent TKA for osteoarthritis of the knee. Pain visual analogue scale (VAS), the amount of analgesics used, number of days to achieve 90° of flexion of the knee joint, date of initiating parallel-bar walking, range of motion of the knee joint at discharge, and adverse events were investigated. Results The VAS scores did not differ significantly between two groups, whereas the amount of analgesics used was significantly lower in the LIA group. Preoperative flexion contracture was significantly more severe in the LIA group with high VAS compared with low VAS. No serious adverse event occurred in the LIA or FNB group. Conclusions The lower analgesic usage in the LIA group than the FNB group indicates that the analgesic effect of LIA was greater than that of singleshot FNB after TKA. There were no serious complications in either group. The postoperative analgesic effect of LIA was smaller in patients with severe than less severe preoperative flexion contracture.
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Affiliation(s)
- Shuji Nakagawa
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Arai
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroaki Inoue
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyuki Kan
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Manabu Hino
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shohei Ichimaru
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuya Ikoma
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyoshi Fujiwara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Fumimasa Amaya
- Department of Anesthesiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Teiji Sawa
- Department of Anesthesiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Mori Y, Nishimura Y, Hanayama R, Nakayama S, Ishii K, Kitagawa Y, Sekine T, Sato N, Kurita T, Kawashima T, Kan H, Komeda O, Nishi T, Azuma H, Hioki T, Motohiro T, Sunahara A, Sentoku Y, Miura E. Fast Heating of Imploded Core with Counterbeam Configuration. Phys Rev Lett 2016; 117:055001. [PMID: 27517775 DOI: 10.1103/physrevlett.117.055001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Indexed: 06/06/2023]
Abstract
A tailored-pulse-imploded core with a diameter of 70 μm is flashed by counterirradiating 110 fs, 7 TW laser pulses. Photon emission (>40 eV) from the core exceeds the emission from the imploded core by 6 times, even though the heating pulse energies are only one seventh of the implosion energy. The coupling efficiency from the heating laser to the core using counterirradiation is 14% from the enhancement of photon emission. Neutrons are also produced by counterpropagating fast deuterons accelerated by the photon pressure of the heating pulses. A collisional two-dimensional particle-in-cell simulation reveals that the collisionless two counterpropagating fast-electron currents induce mega-Gauss magnetic filaments in the center of the core due to the Weibel instability. The counterpropagating fast-electron currents are absolutely unstable and independent of the core density and resistivity. Fast electrons with energy below a few MeV are trapped by these filaments in the core region, inducing an additional coupling. This might lead to the observed bright photon emissions.
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Affiliation(s)
- Y Mori
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Y Nishimura
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - R Hanayama
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - S Nakayama
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - K Ishii
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Y Kitagawa
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Sekine
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - N Sato
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kurita
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kawashima
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - H Kan
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - O Komeda
- Advanced Material Engineering Division, Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
| | - T Nishi
- Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - H Azuma
- Aichi Synchrotron Radiation Center, Minamiyamaguchi-cho, Seto-shi, Aichi-ken 489-0965, Japan
| | - T Hioki
- Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - T Motohiro
- Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - A Sunahara
- Institute for Laser Technology, 1-8-4 Utsubo-honmachi, Nishi-ku, Osaka 550-0004, Japan
| | - Y Sentoku
- Department of Physics, University of Nevada, Reno, 1664 North Virginia Street, Reno, Nevada 89557, USA
| | - E Miura
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Drenkard C, Bao G, Kan H, Pobiner B, Julie P, Eastman W, Lim S. THU0595 Impact of Physician-Patient Interactions on Disease Activity in Patients with Systemic Lupus Erythematosus:. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2381] [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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Stott-Miller M, Egger P, Eudy A, Maskell J, Fu Q, Kan H, Alfonso-Cristancho R, Costenbader K. OP0039 Impact of Belimumab Use on Flares among Patients Diagnosed with Systemic Lupus Erythematosus (SLE) in A Us Commercially Insured Database: 2010-2014. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3607] [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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Zheng W, McKinney W, Kashon M, Salmen R, Castranova V, Kan H. The influence of inhaled multi-walled carbon nanotubes on the autonomic nervous system. Part Fibre Toxicol 2016; 13:8. [PMID: 26864021 PMCID: PMC4750189 DOI: 10.1186/s12989-016-0119-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 02/02/2016] [Indexed: 11/10/2022] Open
Abstract
Background Heart rate and cardiovascular function are regulated by the autonomic nervous system. Heart rate variability (HRV) as a marker reflects the activity of autonomic nervous system. The prognostic significance of HRV in cardiovascular disease has been reported in clinical and epidemiological studies. The present study focused on the influence of inhaled multi-walled carbon nanotubes (MWCNTs) on autonomic nervous system by HRV analysis. Methods Male Sprague–Dawley rats were pre-implanted with a telemetry device and kept in the individual cages for recovery. At week four after device implantation, rats were exposed to MWCNTs for 5 h at a concentration of 5 mg/m3. The real-time EKGs were recorded by a telemetry system at pre-exposure, during exposure, 1 day and 7 days post-exposure. HRV was measured by root mean square of successive differences (RMSSD); the standard deviation of inter-beat (RR) interval (SDNN); the percentage of successive RR interval differences greater than 5 ms (pNN5) and 10 ms (pNN10); low frequency (LF) and high frequency (HF). Results Exposure to MWCNTs increased the percentage of differences between adjacent R-R intervals over 10 ms (pNN10) (p < 0.01), RMSSD (p < 0.01), LF (p < 0.05) and HF (p < 0.01). Conclusions Inhalation of MWCNTs significantly alters the balance between sympathetic and parasympathetic nervous system. Whether such transient alterations in autonomic nervous performance would alter cardiovascular function and raise the risk of cardiovascular events in people with pre-existing cardiovascular conditions warrants further study.
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Affiliation(s)
- W Zheng
- Health Effects Laboratory Division, Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV, 26505, USA.
| | - W McKinney
- Health Effects Laboratory Division, Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV, 26505, USA.
| | - M Kashon
- Health Effects Laboratory Division, Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV, 26505, USA.
| | - R Salmen
- Health Effects Laboratory Division, Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV, 26505, USA.
| | - V Castranova
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, WV, 26505, USA.
| | - H Kan
- Health Effects Laboratory Division, Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV, 26505, USA. .,Department of Physiology and Pharmacology, West Virginia University, Morgantown, WV, 26505, USA.
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Kawaoka T, Imamura M, Kan H, Fujino H, Fukuhara T, Kobayashi T, Honda Y, Naeshiro N, Hiramatsu A, Tsuge M, Hayes CN, Kawakami Y, Aikata H, Ochi H, Ishiyama K, Tashiro H, Ohdan H, Chayama K. Two patients treated with simeprevir plus pegylated-interferon and ribavirin triple therapy for recurrent hepatitis C after living donor liver transplantation: case report. Transplant Proc 2016; 47:809-14. [PMID: 25891736 DOI: 10.1016/j.transproceed.2014.10.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 10/15/2014] [Accepted: 10/28/2014] [Indexed: 12/22/2022]
Abstract
We previously reported our data on telaprevir (TVR) used in combination with pegylated-interferon and ribavirin (PEG-IFN/RBV) for the treatment of recurrent hepatitis C virus (HCV) genotype 1 infection after liver transplantation (LT). TVR substantially increases the blood levels of immunosuppressive agents such as cyclosporine and tacrolimus for drug-drug interactions. On the other hand, the effect of simeprevir (SMV) on the blood levels of these immunosuppressive agents is unclear. We report 2 patients who achieved viral responses with little effect on the blood levels of cyclosporine and tacrolimus using SMV plus PEG-IFN/RBV treatment. The first was a 71-year-old woman with HCV-related liver cirrhosis and hepatocellular carcinoma who failed to respond to PEG-IFN/RBV after living donor LT. She was treated with 40 mg/d of cyclosporine, and received SMV plus PEG-IFN/RBV treatment. The second was a 65-year-old man with HCV-related liver cirrhosis who failed to respond to PEG-IFN/RBV after living donor LT. He was treated with 3 mg/d of tacrolimus, and received SMV plus PEG-IFN/RBV treatment. Serum HCV RNA became undetectable using TaqMan polymerase chain reaction (PCR) test after 4 weeks of treatment in both patients, and no remarkable fluctuation in blood concentration was observed either in cyclosporine or tacrolimus during the 12 weeks of SMV treatment. Completion of 12-week SMV triple therapy was followed by PEG-IFNα2b plus RBV, and both patients achieved sustained virological response 12 weeks after the end of treatment. SMV plus PEG-IFNRBV treatment showed a remarkable viral response with little effect on blood levels of immunosuppressive agents for recurrent HCV genotype 1 infection after LT.
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Affiliation(s)
- T Kawaoka
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - M Imamura
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - H Kan
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - H Fujino
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - T Fukuhara
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - T Kobayashi
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Honda
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - N Naeshiro
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - A Hiramatsu
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - M Tsuge
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - C N Hayes
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Kawakami
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - H Aikata
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - H Ochi
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - K Ishiyama
- Division of Frontier Medical Science, Department of Surgery, Programs for Biomedical Research, Graduate School of Biomedical Science, Hiroshima University, Hiroshima, Japan
| | - H Tashiro
- Division of Frontier Medical Science, Department of Surgery, Programs for Biomedical Research, Graduate School of Biomedical Science, Hiroshima University, Hiroshima, Japan
| | - H Ohdan
- Division of Frontier Medical Science, Department of Surgery, Programs for Biomedical Research, Graduate School of Biomedical Science, Hiroshima University, Hiroshima, Japan
| | - K Chayama
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan.
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Collins CE, Dall'Era M, Kan H, Macahilig C, Molta C, Koscielny V, Chang DJ. Response to belimumab among patients with systemic lupus erythematosus in clinical practice settings: 24-month results from the OBSErve study in the USA. Lupus Sci Med 2016; 3:e000118. [PMID: 26835146 PMCID: PMC4716417 DOI: 10.1136/lupus-2015-000118] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [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: 07/23/2015] [Revised: 11/05/2015] [Accepted: 11/17/2015] [Indexed: 11/13/2022]
Abstract
Objective To examine disease activity and clinical outcomes, and describe overall patterns of systemic lupus erythematosus (SLE) care in patients who received belimumab in a real-world clinical setting. Methods This observational cohort study was conducted in US clinical practices. Rheumatologists (n=92) identified adults with SLE who had received ≥8 infusions of belimumab plus standard of care (SoC). Physicians assessed disease outcomes at 6-month intervals using patient medical charts, for up to 24 months. The primary outcome was physician-assessed change in SLE disease. Other outcomes included change in steroid use, laboratory tests and healthcare resource utilisation (HCRU). Results Of 501 patients (intent-to-treat population (ITT)), 446 were female, mean age was 43.3 years and 98% had moderate/severe disease activity at baseline (first dose of belimumab). Data for 277 patients who completed 24 months of belimumab treatment were available. Among the ITT, a ≥50% improvement in overall clinical response between baseline and month 6 was reported for 48.7% of patients; continued improvement was seen at all subsequent 6-month intervals relative to the previous timepoint. The percentage of patients with moderate/severe disease also decreased at each timepoint. At baseline, 77.0% of patients received steroids at a mean (SD) prednisone equivalent dose of 19.9 (14.39) mg/day, which decreased to 8.4 (7.35) mg/day at month 6 and 6.1 (9.31) mg/day at month 24. Abnormal laboratory values typically associated with SLE also demonstrated improvements at month 6, which continued through 24 months. HCRU decreased over the duration of the study. Conclusions Patients with SLE who received belimumab plus SoC for up to 24 months demonstrated improvements in disease severity and laboratory values and a reduction in steroid use and HCRU as early as month 6. Improvements continued through 24 months, providing evidence of reduced disease activity among patients taking belimumab in real-world clinical practice.
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Affiliation(s)
- C E Collins
- MedStar Washington Hospital Center , Washington DC , USA
| | - M Dall'Era
- University of California , San Francisco, California , USA
| | - H Kan
- GlaxoSmithKline, Research Triangle Park, North Carolina , USA
| | - C Macahilig
- Medical Data Analytics , Parsippany, New Jersey , USA
| | - C Molta
- GlaxoSmithKline , Philadelphia, Pennsylvania , USA
| | | | - D J Chang
- GlaxoSmithKline , Philadelphia, Pennsylvania , USA
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Takahashi G, Yamada T, Kan H, Matsumoto S, Koizumi M, Shinji S, Matsuda A, Yokoyama Y, Iwai T, Masuda Y, Watanabe A, Uchida E. 153P Novel, highly sensitive molecular biomarkers for metastatic colorectal cancer. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.14] [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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Kato K, Arai Y, Ikoma K, Nakagawa S, Inoue H, Kan H, Matsuki T, Fujiwara H, Kubo T. Early postoperative cartilage evaluation by magnetic resonance imaging using T2 mapping after arthroscopic partial medial meniscectomy. Magn Reson Imaging 2015; 33:1274-1280. [DOI: 10.1016/j.mri.2015.08.002] [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: 01/19/2015] [Revised: 04/10/2015] [Accepted: 08/07/2015] [Indexed: 01/15/2023]
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Yamada T, Koda K, Ishibashi K, Kato H, Nishimura G, Ooki S, Yoshimatsu K, Uchida E, Kan H, Kosugi C, Tanaka S, Kato R, Kouketsu S, Nakajima H, Maekawa H, Kobayashi M, Tsubaki M, Yokoyama M, Tanakaya K, Ishida H. 182P Phase II clinical trial of adjuvant chemotherapy with mFOLFOX6/XELOX for stage III colon cancer in Japanese subjects. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Doorenweerd N, Niks E, Straathof C, Webb A, Hendriksen J, Verschuuren J, van Buchem M, Kan H. Brain metabolite concentrations in Duchenne muscular dystrophy are unaltered compared to controls. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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