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Lim WX, Khor HM, Lee JK, Ong T. Fracture Liaison Service and Its Role in Secondary Fracture Prevention in Malaysia: A Scoping Review. Malays Orthop J 2023; 17:1-6. [PMID: 37583523 PMCID: PMC10425002 DOI: 10.5704/moj.2307.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 02/02/2023] [Indexed: 08/17/2023] Open
Abstract
Introduction Fragility fractures, which occur after a low-trauma injury, increases with advancing age. Such fracture doubles the life-time risk of sustaining another fracture. This risk is highest in the immediate 18 months after the index fracture. However, most patients do not receive the appropriate risk assessment and intervention to reduce this risk. A coordinated model of care termed Fracture Liaison Service (FLS) has been reported to address this treatment gap. Materials and methods This scoping review aims to explore the potential role and delivery of FLS services in Malaysia. Scientific and non-scientific sources relevant to FLS were identified from electronic bibliographic databases, specialist journals and relevant websites. Findings were categorised into themes and presented narratively. Results FLS services remain concentrated in the Klang Valley. Even within FLS services, many do not have extensive coverage to risk assess all fracture patients. These services are multidisciplinary in nature where there are links between different departments, such as orthopaedics, osteoporosis expertise, bone densitometry, rehabilitation, falls services and primary care. FLS was able to increase the number of people undergoing fracture risk assessment and treatment. The importance of FLS was highlighted by local experts and stakeholders. Its implementation and delivery are supported by a number of national guidelines. Conclusion FLS is central to our national efforts to reduce the impending fragility fracture crisis in the coming years. Continued effort is needed to increase coverage within FLS services and across the country. Training, awareness of the problem, research, and policy change will support this endeavour.
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Affiliation(s)
- W X Lim
- Department of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - H M Khor
- Department of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - J K Lee
- Department of Orthopaedics, Beacon Hospital, Kuala Lumpur, Malaysia
| | - T Ong
- Department of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
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Tran MX, Smyrek P, Park J, Pfleging W, Lee JK. Ultrafast-Laser Micro-Structuring of LiNi 0.8Mn 0.1Co 0.1O 2 Cathode for High-Rate Capability of Three-Dimensional Li-ion Batteries. Nanomaterials (Basel) 2022; 12:3897. [PMID: 36364674 PMCID: PMC9654857 DOI: 10.3390/nano12213897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Femtosecond ultrafast-laser micro-patterning was employed to prepare a three-dimensional (3D) structure for the tape-casting Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811) cathode. The influences of laser structuring on the electrochemical performance of NMC811 were investigated. The 3D-NMC811 cathode retained capacities of 77.8% at 2 C of initial capacity at 0.1 C, which was thrice that of 2D-NMC811 with an initial capacity of 27.8%. Cyclic voltammetry (CV) and impedance spectroscopy demonstrated that the 3D electrode improved the Li+ ion transportation at the electrode-electrolyte interface, resulting in a higher rate capability. The diffusivity coefficient DLi+, calculated by both CV and electrochemical impedance spectroscopy, revealed that 3D-NMC811 delivered faster Li+ ion transportation with higher DLi+ than that of 2D-NMC811. The laser ablation of the active material also led to a lower charge-transfer resistance, which represented lower polarization and improved Li+ ion diffusivity.
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Affiliation(s)
- Minh Xuan Tran
- Division of Energy and Environmental Technology, KIST School, Korea University of Science and Technology (UST), Deajeon 34113, Korea
- Center for Energy Storage Research, Green City Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
| | - Peter Smyrek
- Karlsruhe Institute of Technology, Institute for Applied Materials, P.O. Box 3640, 76021 Karlsruhe, Germany
- Karlsruhe Nano Micro Facility, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Jihun Park
- APC Technology, 108 68 Gangbyeonyeok-ro-4-gil, Gwangjin-gu, Seoul 05116, Korea
| | - Wilhelm Pfleging
- Karlsruhe Institute of Technology, Institute for Applied Materials, P.O. Box 3640, 76021 Karlsruhe, Germany
- Karlsruhe Nano Micro Facility, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Joong Kee Lee
- Division of Energy and Environmental Technology, KIST School, Korea University of Science and Technology (UST), Deajeon 34113, Korea
- Center for Energy Storage Research, Green City Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
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3
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Lee JK, Choi JH, Kim BS, Shin YS. Recovery from Cranial Nerve Symptoms after Flow Diversion without Coiling for Unruptured Very Large and Giant ICA Aneurysms. AJNR Am J Neuroradiol 2022; 43:736-740. [PMID: 35450858 PMCID: PMC9089254 DOI: 10.3174/ajnr.a7498] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/08/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND PURPOSE Cranial nerve symptoms, including visual impairment and ophthalmoplegia, are one of the most common presentations of very large and giant (≥15 mm) ICA aneurysms. In this study, we evaluated the treatment outcomes of flow diversion and conventional coiling in terms of recovery from cranial nerve symptoms and postoperative complications. MATERIALS AND METHODS Seventy-nine patients with unruptured ICA aneurysms of >15 mm who were treated with flow diversion or conventional coiling between December 2009 and December 2020 were retrospectively evaluated. We compared the radiologic and clinical outcomes, including recovery from cranial nerve symptoms, between the 2 groups. RESULTS Twenty-eight of 49 patients (57.1%) treated with flow diversion and 10 of 30 patients (33.3%) treated with conventional coiling initially presented with cranial nerve symptoms (P = .068). In the clinical follow-up, the symptom recovery rate was significantly higher in those treated with flow diversion (15 [50%] versus 3 [25%] with conventional coiling, P = .046). Multivariate logistic regression analysis demonstrated that flow diversion was significantly associated with symptom recovery (OR, 7.425; 95% CI, 1.091-50.546; P = .040). The overall postoperative complication rate was similar (flow diversion, 10 [20.4%]; conventional coiling, 6 [20.0%], P = .965), though fatal hemorrhagic complications occurred only in patients with intradurally located aneurysms treated with flow diversion (4 [8.2%] versus 0 [0.0%] with coiling, P = .108). CONCLUSIONS Flow diversion without coiling for very large and giant ICA aneurysms yielded a higher rate of recovery from cranial nerve symptoms, but it may be related to an increased hemorrhagic complication rate, especially for intradurally located aneurysms.
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Affiliation(s)
- J K Lee
- From the Departments of Neurosurgery (J.K.L., J.H.C., Y.S.S.)
| | - J H Choi
- From the Departments of Neurosurgery (J.K.L., J.H.C., Y.S.S.)
| | - B-S Kim
- Radiology (B.-S.K.), Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - Y S Shin
- From the Departments of Neurosurgery (J.K.L., J.H.C., Y.S.S.)
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Kim JY, Liu G, Ardhi REA, Park J, Kim H, Lee JK. Correction to: Stable Zn Metal Anodes with Limited Zn-Doping in MgF 2 Interphase for Fast and Uniformly Ionic Flux. Nanomicro Lett 2022; 14:70. [PMID: 35243552 PMCID: PMC8894508 DOI: 10.1007/s40820-022-00814-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Ji Young Kim
- Energy Storage Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Guicheng Liu
- Department of Physics, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Ryanda Enggar Anugrah Ardhi
- Energy Storage Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Jihun Park
- APC Technology, 108 68 Gangbyeonyeok-ro-4-gil, Gwangjin-gu, Seoul, 05116, Republic of Korea
| | - Hansung Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Joong Kee Lee
- Energy Storage Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
- Department of Energy and Environmental Engineering, KIST School, Korea University of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
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Kim JY, Liu G, Ardhi REA, Park J, Kim H, Lee JK. Stable Zn Metal Anodes with Limited Zn-Doping in MgF 2 Interphase for Fast and Uniformly Ionic Flux. Nanomicro Lett 2022; 14:46. [PMID: 35064848 PMCID: PMC8783935 DOI: 10.1007/s40820-021-00788-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/07/2021] [Indexed: 06/04/2023]
Abstract
The practical applications of aqueous Zn metal batteries are currently restricted by the inherent drawbacks of Zn such as the hydrogen evolution reaction, sluggish kinetics, and dendrite formation. To address these problems, herein, a limitedly Zn-doped MgF2 interphase comprising an upper region of pure, porous MgF2 and a lower region of gradient Zn-doped MgF2 is achieved via radio frequency sputtering technique. The porous MgF2 region is a polar insulator whose high corrosion resistance facilitates the de-solvation of the solvated Zn ions and suppression of hydrogen evolution, resulting in Zn metal electrodes with a low interfacial resistance. The Zn-doped MgF2 region facilitates fast transfer kinetics and homogeneous deposition of Zn ions owing to the interfacial polarization between the Zn dopant and MgF2 matrix, and the high concentration of the Zn dopant on the surface of the metal substrate as fine nuclei. Consequently, a symmetric cell incorporating the proposed Zn metal exhibits low overpotentials of ~ 27.2 and ~ 99.7 mV without Zn dendrites over 250 to 8000 cycles at current densities of 1.0 and 10.0 mA cm-2, respectively. The developed Zn/MnO2 full cell exhibits superior capacity retentions of 97.5% and 84.0% with average Coulombic efficiencies of 99.96% after 1000 and 3000 cycles, respectively.
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Affiliation(s)
- Ji Young Kim
- Energy Storage Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Guicheng Liu
- Department of Physics, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Ryanda Enggar Anugrah Ardhi
- Energy Storage Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Jihun Park
- APC Technology, 108 68 Gangbyeonyeok-ro-4-gil, Gwangjin-gu, Seoul, 05116, Republic of Korea
| | - Hansung Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Joong Kee Lee
- Energy Storage Research Center, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
- Department of Energy and Environmental Engineering, KIST School, Korea University of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
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Andreas Arie A, Lenora S, Kristianto H, Frida Susanti R, Kee Lee J. Potato Peel Based Carbon-Sulfur Composite as Cathode Materials for Lithium Sulfur Battery. J Nanosci Nanotechnol 2021; 21:6243-6247. [PMID: 34229827 DOI: 10.1166/jnn.2021.19288] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lithium sulfur battery has become one of the promising rechargeable battery systems to replace the conventional lithium ion battery. Commonly, it uses carbon-sulfur composites as cathode materials. Biomass based carbons has an important role in enhancing its electrochemical characteristics due to the high conductivity and porous structures. Here, potato peel wastes have been utilized to prepare porous carbon lithium sulfur battery through hydrothermal carbonization followed by the chemical activation method using KOH. After sulfur loading, as prepared carbon-sulfur composite shows stable coulombic efficiencies of above 98% and a reversible specific capacity of 804 mAh g-1 after 100 cycles at current density of 100 mA g-1. These excellent electrochemical properties can be attributed to the unique structure of PPWC showing mesoporous structure with large specific surface areas. These results show the potential application of potato peel waste based porous carbon as electrode's materials for lithium sulfur battery.
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Affiliation(s)
- Arenst Andreas Arie
- Department of Chemical Engineering, Faculty of Industrial Technology, Parahyangan Catholic University, Ciumbuleuit 94 Bandung 40141, Indonesia
| | - Shealyn Lenora
- Department of Chemical Engineering, Faculty of Industrial Technology, Parahyangan Catholic University, Ciumbuleuit 94 Bandung 40141, Indonesia
| | - Hans Kristianto
- Department of Chemical Engineering, Faculty of Industrial Technology, Parahyangan Catholic University, Ciumbuleuit 94 Bandung 40141, Indonesia
| | - Ratna Frida Susanti
- Department of Chemical Engineering, Faculty of Industrial Technology, Parahyangan Catholic University, Ciumbuleuit 94 Bandung 40141, Indonesia
| | - Joong Kee Lee
- Center of Energy Convergence, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Korea
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Lee JK, Moraru GM, Stokes JV, Wills RW, Mitchell E, Unz E, Moore-Henderson B, Harper AB, Varela-Stokes AS. Corrigendum to: Rickettsia parkeri and "Candidatus Rickettsia andeanae" in questing Amblyomma maculatum (Acari: Ixodidae) from Mississippi. J Med Entomol 2021; 58:2548. [PMID: 34596685 PMCID: PMC8824422 DOI: 10.1093/jme/tjab138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- J K Lee
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
- Diagnostic Pathology Center, Animal Health Institute, Midwestern University, College of Veterinary Medicine, Glendale, AZ, USA
| | - G M Moraru
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
| | - J V Stokes
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
| | - R W Wills
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
| | - E Mitchell
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
| | - E Unz
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
| | - B Moore-Henderson
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
| | - A B Harper
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS, USA
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Lee JK, Flowers A, Williams J, Li S, Yi X, Huang R. Immunoglobulin D Multiple Myeloma with a “Hidden” Lambda Light Chain. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction/Objective
In rare cases, the conventional immunofixation gel electrophoresis technique fails to detect the light chain of an M-protein. We report a case of immunoglobulin (Ig) D multiple myeloma with a hidden lambda (λ) light chain.
Methods/Case Report
Capillary electrophoresis (CE) (Sebia CAPILLARYS 2) was used to detect and quantify M- proteins in serum specimens. Immunosubtraction (IS) on the CAPILLARYS 2 systems was used to identify the classes of M-proteins. Conventional gel immunofixation electrophoresis (IFE) was performed, using monospecific antisera for IgD, IgE, kappa (κ) or λ in the Sebia HYDRASYS system, and IgG, IgA, IgM, κ or λ in the Helena SPIFE3000 system. Beta-mercaptoethanol (BME) with Fluidil were used as reduction agents.
Results (if a Case Study enter NA)
Results of serum CE showed two abnormal peaks in beta 2 and gamma regions, suspected to be positive for M-proteins. IS results showed subtraction for λ light chain only in both peaks, suggesting two monoclonal λ light chains. In contrary, no monoclonal λ light chain was detected in gamma region by IFE (Sebia). Epitope masking in the folded monoclonal protein was suspected to cause the “hidden λ light chain” and was further investigated by two laboratory approaches. IFE performed on the Helena SPIFE3000 system found two λ bands in beta 2 and gamma regions, which was consistent with the results from IS. The treatment of BME with Fluidil helped unmasking the hidden epitope and revealed the λ band in gamma region on IFE (Sebia).
Conclusion
The medical laboratories should be aware of the described scenario. The failure to detect light chains of certain intact M-proteins is most likely due to the structurally inaccessibility of light chains. It is recommended that treatment with reduction agents or use of an alternative methodology or IS might be helpful for investigating suspected heavy chain only cases, due to the limitation of conventional methodology.
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Affiliation(s)
- J K Lee
- Pathology, The Ohio State University, Columbus, Ohio, UNITED STATES
| | - A Flowers
- Pathology, The Ohio State University, Columbus, Ohio, UNITED STATES
| | - J Williams
- Pathology, The Ohio State University, Columbus, Ohio, UNITED STATES
| | - S Li
- Pathology, The Ohio State University, Columbus, Ohio, UNITED STATES
| | - X Yi
- Pathology and Genomic Medicine, Houston Methodist Hospital and Research Institute, Houston, Texas, UNITED STATES
| | - R Huang
- Pathology and Immunology, Baylor College of Medicine, Houston, Texas, UNITED STATES
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Lee JK, Li S. The Variations of Insulin-like Growth Factor 1 Measured between Siemens Immulite, DiaSorin Liaison and IDS iSYS. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction/Objective
Insulin-like Growth Factor 1 (IGF-1) is a biomarker for the evaluation of growth hormone activity in the hypothalamic-pituitary axis. The current most common methodology for IGF-1 measurement is automated immunometric assays. In this study, we compared the IGF-1 on Siemens Immulite 2000, DiaSorin Liaison XL and IDS iSYS.
Methods/Case Report
Residual 30-110 serum specimens were randomly selected from routine hospital orders. IGF- 1 was measured on these three platforms and compared with Passing-Bablok regression. Bias was evaluated using the Bland-Altman method.
Results (if a Case Study enter NA)
Weighted Deming regression analysis showed approximately 80% and 56% positive bias on IDS iSYS and DiaSorin Liaison, compared with Siemens Immulite (iSYS=1.81*Immulite-117.65, r=0.91; Liaison=1.56*Immulite-4.58, r=0.98). There was approximately 8% positive bias on Liaison, compared with iSYS (Liaison=1.08*iSYS+0.56, r=0.99). The Passing-Bablok regression analysis revealed approximately 67% and 54% positive bias (iSYS=1.67*Immulite-75, r=0.91; Liaison=1.54*Immulite-3.44, r=0.91). Approximately 8% positive bias on Liaison was observed, compared with iSYS (Liaison=1.08*iSYS+5.65, r=0.99). The Bland-Altman plot showed the agreement between iSYS and Immulite IGF-1 was on average 129.6±123.3 ng/mL, 98.6±148.8 ng/mL between Liaison and Immulite and 37.0±46.5 ng/mL between Liaison and iSYS.
Conclusion
Immunoassays rely on the specificity of antibodies. There are wide variations between different immunoassay platforms for IGF-1 measurement. The standardization of IGF-1 assay is lack. It would be a challenge for clinicians to monitor IGF-1 or treat the patients with pituitary disorders, when switching to another platform. The potential impact of the variations in IGF-1 measurement between different immunoassay platforms should be aware.
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Affiliation(s)
- J K Lee
- Pathology, The Ohio State University, Columbus, Ohio, UNITED STATES
| | - S Li
- Pathology, The Ohio State University, Columbus, Ohio, UNITED STATES
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Chandran M, Mitchell PJ, Amphansap T, Bhadada SK, Chadha M, Chan DC, Chung YS, Ebeling P, Gilchrist N, Habib Khan A, Halbout P, Hew FL, Lan HPT, Lau TC, Lee JK, Lekamwasam S, Lyubomirsky G, Mercado-Asis LB, Mithal A, Nguyen TV, Pandey D, Reid IR, Suzuki A, Chit TT, Tiu KL, Valleenukul T, Yung CK, Zhao YL. Publisher Correction to: Development of the Asia Pacific Consortium on Osteoporosis (APCO) framework: clinical standards of care for the screening, diagnosis, and management of osteoporosis in the Asia-Pacific region. Osteoporos Int 2021; 32:1277-1278. [PMID: 34043033 PMCID: PMC8192350 DOI: 10.1007/s00198-021-05953-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M Chandran
- Department of Endocrinology, Osteoporosis and Bone Metabolism Unit, Singapore General Hospital, 20, College Road, Academia, Singapore, 169856, Singapore.
| | - P J Mitchell
- Synthesis Medical NZ Limited, Pukekohe, Auckland, New Zealand
| | - T Amphansap
- Department of Orthopedics, Police General Hospital, Bangkok, Thailand
| | - S K Bhadada
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - M Chadha
- Department of Endocrinology, Hinduja Hospital and Research Centre, Mumbai, India
| | - D-C Chan
- Internal Medicine, National University Hospital Chu-Tung Branch, Chinese Taipei, Taiwan
| | - Y-S Chung
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, South Korea
| | - P Ebeling
- Department of Medicine in the School of Clinical Sciences, Monash Health, Melbourne, Australia
| | - N Gilchrist
- Canterbury District Health Board, Christchurch, New Zealand
| | - A Habib Khan
- Section of Chemical Pathology, Department of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan
| | - P Halbout
- International Osteoporosis Foundation, Nyon, Switzerland
| | - F L Hew
- Department of Medicine, Subang Jaya Medical Centre, Subang Jaya, Malaysia
| | - H-P T Lan
- Musculoskeletal and Metabolic Unit, Biomedical Research Center, Pham Ngoc Thach University of Medicine, Bone and Muscle Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - T C Lau
- Division of Rheumatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - J K Lee
- Department of Orthopedics, Beacon International Specialist Centre, Petaling Jaya, Malaysia
| | - S Lekamwasam
- Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka
| | | | - L B Mercado-Asis
- Faculty of Medicine and Surgery, University of Santo Tomas, Manila, Philippines
| | - A Mithal
- Endocrinology, Diabetes Division, Mithal, M. Max Healthcare - Pan-Max, Gurgaon, India
| | - T V Nguyen
- Genetics and Epidemiology of Osteoporosis Laboratory, Bone Biology Division, Garvan Institute of Medical Reseach, Sydney, Australia
| | - D Pandey
- Department of Orthopaedics, National Trauma Centre, Kathmandu, Nepal
| | - I R Reid
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - A Suzuki
- Department of Endocrinology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - T T Chit
- East Yangon General Hospital, Yangon, Myanmar
| | - K L Tiu
- Polytrauma and Fragility Fracture Team, Department of Orthopaedics and Traumatology, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - T Valleenukul
- Department of Orthopedics, Bhumibol Adulyadej Hospital, Bangkok, Thailand
| | - C K Yung
- Department of Endocrinology and Patient Safety Unit, Raja Isteri Pengiran Anak Saleha Hospital, Bandar Seri Begawan, Brunei Darussalam
| | - Y L Zhao
- Department of Obstetrics and Gynecology, Beijing United Family Hospital, Beijing, China
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11
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Chandran M, Mitchell PJ, Amphansap T, Bhadada SK, Chadha M, Chan DC, Chung YS, Ebeling P, Gilchrist N, Habib Khan A, Halbout P, Hew FL, Lan HPT, Lau TC, Lee JK, Lekamwasam S, Lyubomirsky G, Mercado-Asis LB, Mithal A, Nguyen TV, Pandey D, Reid IR, Suzuki A, Chit TT, Tiu KL, Valleenukul T, Yung CK, Zhao YL. Development of the Asia Pacific Consortium on Osteoporosis (APCO) Framework: clinical standards of care for the screening, diagnosis, and management of osteoporosis in the Asia-Pacific region. Osteoporos Int 2021; 32:1249-1275. [PMID: 33502559 PMCID: PMC8192320 DOI: 10.1007/s00198-020-05742-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [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] [Received: 10/02/2020] [Accepted: 11/11/2020] [Indexed: 01/07/2023]
Abstract
UNLABELLED Guidelines for doctors managing osteoporosis in the Asia-Pacific region vary widely. We compared 18 guidelines for similarities and differences in five key areas. We then used a structured consensus process to develop clinical standards of care for the diagnosis and management of osteoporosis and for improving the quality of care. PURPOSE Minimum clinical standards for assessment and management of osteoporosis are needed in the Asia-Pacific (AP) region to inform clinical practice guidelines (CPGs) and to improve osteoporosis care. We present the framework of these clinical standards and describe its development. METHODS We conducted a structured comparative analysis of existing CPGs in the AP region using a "5IQ" model (identification, investigation, information, intervention, integration, and quality). One-hundred data elements were extracted from each guideline. We then employed a four-round Delphi consensus process to structure the framework, identify key components of guidance, and develop clinical care standards. RESULTS Eighteen guidelines were included. The 5IQ analysis demonstrated marked heterogeneity, notably in guidance on risk factors, the use of biochemical markers, self-care information for patients, indications for osteoporosis treatment, use of fracture risk assessment tools, and protocols for monitoring treatment. There was minimal guidance on long-term management plans or on strategies and systems for clinical quality improvement. Twenty-nine APCO members participated in the Delphi process, resulting in consensus on 16 clinical standards, with levels of attainment defined for those on identification and investigation of fragility fractures, vertebral fracture assessment, and inclusion of quality metrics in guidelines. CONCLUSION The 5IQ analysis confirmed previous anecdotal observations of marked heterogeneity of osteoporosis clinical guidelines in the AP region. The Framework provides practical, clear, and feasible recommendations for osteoporosis care and can be adapted for use in other such vastly diverse regions. Implementation of the standards is expected to significantly lessen the global burden of osteoporosis.
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Affiliation(s)
- M Chandran
- Department of Endocrinology, Osteoporosis and Bone Metabolism Unit, Singapore General Hospital, 20, College Road, Academia, Singapore, 169856, Singapore.
| | - P J Mitchell
- Synthesis Medical NZ Limited, Pukekohe, Auckland, New Zealand
| | - T Amphansap
- Department of Orthopedics, Police General Hospital, Bangkok, Thailand
| | - S K Bhadada
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - M Chadha
- Department of Endocrinology, Hinduja Hospital and Research Centre, Mumbai, India
| | - D-C Chan
- Internal Medicine, National University Hospital Chu-Tung Branch, Chinese Taipei, Taiwan
| | - Y-S Chung
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, South Korea
| | - P Ebeling
- Department of Medicine in the School of Clinical Sciences, Monash Health, Melbourne, Australia
| | - N Gilchrist
- Canterbury District Health Board, Christchurch, New Zealand
| | - A Habib Khan
- Section of Chemical Pathology, Department of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan
| | - P Halbout
- International Osteoporosis Foundation, Nyon, Switzerland
| | - F L Hew
- Department of Medicine, Subang Jaya Medical Centre, Subang Jaya, Malaysia
| | - H-P T Lan
- Musculoskeletal and Metabolic Unit, Biomedical Research Center, Pham Ngoc Thach University of Medicine, Bone and Muscle Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - T C Lau
- Division of Rheumatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - J K Lee
- Department of Orthopedics, Beacon International Specialist Centre, Petaling Jaya, Malaysia
| | - S Lekamwasam
- Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka
| | | | - L B Mercado-Asis
- Faculty of Medicine and Surgery, University of Santo Tomas, Manila, Philippines
| | - A Mithal
- Endocrinology, Diabetes Division, Mithal, M. Max Healthcare - Pan-Max, Gurgaon, India
| | - T V Nguyen
- Genetics and Epidemiology of Osteoporosis Laboratory, Bone Biology Division, Garvan Institute of Medical Reseach, Sydney, Australia
| | - D Pandey
- Department of Orthopaedics, National Trauma Centre, Kathmandu, Nepal
| | - I R Reid
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - A Suzuki
- Department of Endocrinology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - T T Chit
- East Yangon General Hospital, Yangon, Myanmar
| | - K L Tiu
- Polytrauma and Fragility Fracture team, Department of Orthopaedics and Traumatology, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - T Valleenukul
- Department of Orthopedics, Bhumibol Adulyadej Hospital, Bangkok, Thailand
| | - C K Yung
- Department of Endocrinology and Patient Safety Unit, Raja Isteri Pengiran Anak Saleha Hospital, Bandar Seri Begawan, Brunei Darussalam
| | - Y L Zhao
- Department of Obstetrics and Gynecology, Beijing United Family Hospital, Beijing, China
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Abstract
AbstractPorous carbons were prepared from the biomass waste rambutan peels using hydrothermal carbonization followed by the KOH activation process. Rambutan peel derived porous carbons (RPC) with high surface area of 2104 m2 g−1 and large pore volume of 1.2 cm3 g−1 were obtained at KOH/carbon ratio of 4 and activation temperature of 900 °C. The as-obtained porous carbons were capable of encapsulating sulfur with a high loading of 68.2 wt% to form RPC/S composite cathode for lithium sulfur (Li–S) battery. High specific discharge capacities of about 1275 mAh g−1 were demonstrated by the RPC/S composites at 0.1 C. After 200 cycles at 0.1 C, a high specific capacity of 936 mAh g−1 was maintained, showing an excellent capacity retention of about 73%.
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13
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Choi HG, Lee JK, Lee MJ, Park B, Sim S, Lee SM. Blindness increases the risk for hip fracture and vertebral fracture but not the risk for distal radius fracture: a longitudinal follow-up study using a national sample cohort. Osteoporos Int 2020; 31:2345-2354. [PMID: 32632509 DOI: 10.1007/s00198-020-05475-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/21/2020] [Indexed: 12/14/2022]
Abstract
UNLABELLED The risks for hip fracture and vertebral fracture, but not the risk for distal radius fracture, were significantly higher in the blindness group than in the control group with a maximum 12-year follow-up. PURPOSE To evaluate the influence of visual impairment on the risk for osteoporotic fractures at common sites: hip, thoracic/lumbar vertebra, and distal radius. METHODS This longitudinal follow-up study used a database of a national sample cohort from 2002 to 2013 provided by the Korean National Health Insurance Service. Of a total of 1,125,691 subjects, 3918 patients with visual impairment and age ≥ 50 years were enrolled in a 1:4 ratio; 15,672 control participants were matched for age, sex, income, and region of residence. Stratified Cox proportional-hazards models were used to evaluate the crude and adjusted (for steroid medication, rheumatoid arthritis, depression, osteoporosis, diabetes mellitus, and stroke history) hazard ratios (HRs) for each fracture site. Fracture diagnoses were based on the ICD-10 codes: hip fracture (S720, S721, S722), vertebral fracture (S220, S320), and distal radius fracture (S525). RESULTS The HRs for hip and vertebral fracture were significantly higher in the blindness group (adjusted HR = 2.46, p < 0.001 for hip fracture; adjusted HR = 1.42, p = 0.020 for thoracic/lumbar vertebral fracture) than in the matched control group. However, the HR for distal radius fracture was not higher in the blindness group. The HRs for all three fracture sites were not significantly higher in the non-blindness visual impairment group after adjustment. CONCLUSION The risks for hip fracture and vertebral fracture were significantly higher in the blindness group. However, the risk for distal radius fracture was not related to visual impairment including blindness.
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Affiliation(s)
- H G Choi
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University College of Medicine, Anyang, Republic of Korea
- Hallym Data Science Laboratory, Hallym University College of Medicine, Anyang, Republic of Korea
| | - J K Lee
- Department of Orthopaedic Surgery, Konkuk University Medical Center, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - M J Lee
- Department of Ophthalmology, Hallym University College of Medicine, Anyang, Republic of Korea
| | - B Park
- Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University College of Medicine, Anyang, Republic of Korea
| | - S Sim
- Department of Statistics and Institute of Statistics, Hallym University, 1 Hallymdaehak-gil, Chuncheon-si, Gangwon-do, 24252, Republic of Korea.
| | - S-M Lee
- Department of Cornea, External Disease & Refractive Surgery, HanGil Eye Hospital, Catholic Kwandong University College of Medicine, 35 Bupyeong-daero, Bupyeong-gu, Incheon, 21388, Republic of Korea.
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14
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Ong T, Khor HM, Kumar CS, Singh S, Chong E, Ganthel K, Lee JK. The Current and Future Challenges of Hip Fracture Management in Malaysia. Malays Orthop J 2020; 14:16-21. [PMID: 33403058 PMCID: PMC7751988 DOI: 10.5704/moj.2011.004] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 11/01/2020] [Indexed: 12/27/2022] Open
Abstract
By 2050, it is predicted that six million hip fractures will occur each year of which the majority will happen in Asia. Malaysia is not spared from this predicted rise and its rate of increase will be one of the highest in this region. Much of this is driven by our unprecedented growth in the number of older people. Characteristics of individuals with hip fractures in Malaysia mirror what has been reported in other countries. They will be older multimorbid people who were already at risk of falls and fractures. Outcomes were poor with at least a quarter do not survive beyond 12 months and in those that do survive have limitation in their mobility and activities of daily living. Reviewing how these fractures are managed and incorporating new models of care, such as orthogeriatric care, could address these poor outcomes. Experts have warned of the devastating impact of hip fracture in Malaysia and that prompt action is urgently required. Despite that, there remains no national agenda to highlight the need to improve musculoskeletal health in the country.
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Affiliation(s)
- T Ong
- Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - H M Khor
- Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - C S Kumar
- Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - S Singh
- Department of Orthopaedic Surgery, University of Malaya, Kuala Lumpur, Malaysia
| | - Egm Chong
- Department of Geriatric Medicine, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - K Ganthel
- Department of Orthopaedics, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - J K Lee
- Department of Orthopaedics, Beacon Hospital, Petaling Jaya, Malaysia
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15
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Ebeling PR, Chan DC, Lau TC, Lee JK, Songpatanasilp T, Wong SH, Hew FL, Sethi R, Williams M. Secondary prevention of fragility fractures in Asia Pacific: an educational initiative. Osteoporos Int 2020; 31:805-826. [PMID: 31788717 DOI: 10.1007/s00198-019-05197-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 10/15/2019] [Indexed: 12/16/2022]
Abstract
The Asia -Pacific Bone Academy (APBA) Fracture Liaison Service (FLS) Focus Group educational initiative has stimulated activity across the Asia -Pacific region with the intention of supporting widespread implementation of new FLS. In 2017, the APBA FLS Focus Group developed a suite of tools to support implementation of FLS across the Asia-Pacific region as a component of a multi-faceted educational initiative. This article puts this initiative into context with a narrative review describing the burden of fragility fractures in the region, the current secondary fracture prevention care gap and a summary of emerging best practice. The results of a survey to evaluate the impact of the APBA educational initiative is presented, in addition to commentary on recent activities intended to improve the care of individuals who sustain fragility fractures across the Asia -Pacific. A FLS Toolbox for Asia-Pacific was developed which included the following sections:1. The burden of fragility fractures in the Asia-Pacific region.2. A summary of evidence for FLS in the Asia-Pacific.3. A generic, fully referenced FLS business plan template.4. Potential cost savings accrued by each country, based on a country-specific FLS Benefits Calculator.5. How to start and expand FLS programmes in the Asia-Pacific context.6. A step-by-step guide to setting up FLS in countries in the Asia-Pacific region.7. Other practical tools to support FLS establishment.8. FLS online resources and publications.The FLS Toolbox was provided as a resource to support FLS workshops immediately following the 5th Scientific Meeting of the Asian Federation of Osteoporosis Societies (AFOS) held in Kuala Lumpur in October 2017. The FLS workshops addressed three key themes:• The FLS business case.• Planning the FLS patient pathway.• The role of the FLS coordinator in fragility fracture care management.A follow-up survey of 142 FLS workshop participants was conducted in August-September 2018. The survey included questions regarding how FLS were developed, funded, the scope of service provision and the support provided by the educational initiative. Almost one-third (30.3%) of FLS workshop participants completed the survey. Survey responses were reported for those who had established a FLS at the time the survey was conducted and, separately, for those who had not established a FLS. Findings for those who had established a FLS included:• 78.3% of respondents established a multidisciplinary team to develop the business case for their FLS.• 87.0% of respondents stated that a multidisciplinary team was established to design the patient pathway for their FLS.• 26.1% of respondents stated that their FLS has sustainable funding.• The primary source of funding for FLS was from public hospitals (83.3%) as compared with private hospitals (16.7%).Most hospitals that had not established a FLS at the time the survey was conducted were either in the process of setting-up a FLS (47%) or had plans in place to establish a FLS for which approval is being sought (29%). The primary barrier to establishing a new FLS was lack of sustainable funding. The APBA FLS Focus Group educational initiative has stimulated activity across the Asia-Pacific region with the intention of supporting widespread implementation of new FLS. A second edition of the FLS Toolbox is in development which is intended to complement ongoing efforts throughout the region to expedite widespread implementation of FLS.
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Affiliation(s)
- P R Ebeling
- Department of Medicine, School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash Health, Translational Research Facility, Level 7, 246 Clayton Rd, Clayton, VIC, 3168, Australia.
| | - D-C Chan
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Superintendent Office, Chutung Branch, National Taiwan University Hospital, Hsinchu, Taiwan
| | - T C Lau
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - J K Lee
- Department of Orthopedic Surgery, Beacon International Specialist Centre, Petaling Jaya, Selangor, Malaysia
| | - T Songpatanasilp
- Department of Orthopaedics, Phramongkutklao Hospital and College of Medicine, Bangkok, Thailand
| | - S H Wong
- Department of Orthopaedics, International Medical Centre, Central, Hong Kong
| | - F L Hew
- Puchong Medical Specialist Centre, Puchong, Selangor, Malaysia
- Sime Darby Medical Centre, Subang Jaya, Selangor, Malaysia
| | - R Sethi
- Amgen Asia Holding Limited, Hong Kong, Hong Kong
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16
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Caria G, Urquijo P, Adachi I, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Babu V, Badhrees I, Bahinipati S, Bakich AM, Behera P, Beleño C, Bennett J, Bhuyan B, Bilka T, Biswal J, Bozek A, Bračko M, Browder TE, Campajola M, Červenkov D, Chang P, Cheaib R, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho HE, Cho K, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Dash N, De Nardo G, Di Capua F, Di Carlo S, Doležal Z, Dong TV, Eidelman S, Epifanov D, Fast JE, Ferber T, Ferlewicz D, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Greenwald D, Grzymkowska O, Guan Y, Hartbrich O, Hayasaka K, Hayashii H, Higuchi T, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Kaliyar AB, Kang KH, Karyan G, Kawasaki T, Kichimi H, Kim CH, Kim DY, Kim HJ, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krohn JF, Krokovny P, Kuhr T, Kumar R, Kwon YJ, Lange JS, Lee IS, Lee JK, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Lieret K, Liventsev D, Luo T, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Metzner F, Miyabayashi K, Mohanty GB, Moon TJ, Mori T, Mussa R, Nakamura KR, Nakao M, Nath KJ, Nayak M, Nisar NK, Nishida S, Nishimura K, Ogawa K, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pal B, Pang T, Park H, Park SH, Patra S, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Prim MT, Rabusov A, Resmi PK, Ritter M, Rozanska M, Russo G, Sahoo D, Sakai Y, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Sevior ME, Shebalin V, Shiu JG, Shwartz B, Simon F, Sokolov A, Solovieva E, Starič M, Stottler ZS, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uglov T, Uno S, Usov Y, Vahsen SE, Van Tonder R, Varner G, Varvell KE, Vossen A, Waheed E, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanuki S, Wiechczynski J, Won E, Yamamoto H, Yang SB, Ye H, Yin JH, Yuan CZ, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Measurement of R(D) and R(D^{*}) with a Semileptonic Tagging Method. Phys Rev Lett 2020; 124:161803. [PMID: 32383937 DOI: 10.1103/physrevlett.124.161803] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 03/10/2020] [Indexed: 06/11/2023]
Abstract
The experimental results on the ratios of branching fractions R(D)=B(B[over ¯]→Dτ^{-}ν[over ¯]_{τ})/B(B[over ¯]→Dℓ^{-}ν[over ¯]_{ℓ}) and R(D^{*})=B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}ℓ^{-}ν[over ¯]_{ℓ}), where ℓ denotes an electron or a muon, show a long-standing discrepancy with the standard model predictions, and might hint at a violation of lepton flavor universality. We report a new simultaneous measurement of R(D) and R(D^{*}), based on a data sample containing 772×10^{6} BB[over ¯] events recorded at the ϒ(4S) resonance with the Belle detector at the KEKB e^{+}e^{-} collider. In this analysis the tag-side B meson is reconstructed in a semileptonic decay mode and the signal-side τ is reconstructed in a purely leptonic decay. The measured values are R(D)=0.307±0.037±0.016 and R(D^{*})=0.283±0.018±0.014, where the first uncertainties are statistical and the second are systematic. These results are in agreement with the standard model predictions within 0.2, 1.1, and 0.8 standard deviations for R(D), R(D^{*}), and their combination, respectively. This work constitutes the most precise measurements of R(D) and R(D^{*}) performed to date as well as the first result for R(D) based on a semileptonic tagging method.
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Affiliation(s)
- G Caria
- School of Physics, University of Melbourne, Victoria 3010
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - D M Asner
- Brookhaven National Laboratory, Upton, New York 11973
| | - H Atmacan
- University of South Carolina, Columbia, South Carolina 29208
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - V Babu
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - P Behera
- Indian Institute of Technology Madras, Chennai 600036
| | - C Beleño
- II. Physikalisches Institut, Georg-August-Universität Göttingen, 37073 Göttingen
| | - J Bennett
- University of Mississippi, University, Mississippi 38677
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - T Bilka
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - M Campajola
- INFN-Sezione di Napoli, 80126 Napoli
- Università di Napoli Federico II, 80055 Napoli
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - P Chang
- Department of Physics, National Taiwan University, Taipei 10617
| | - R Cheaib
- University of Mississippi, University, Mississippi 38677
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | - B G Cheon
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - K Chilikin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - H E Cho
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 34141
| | - Y Choi
- Sungkyunkwan University, Suwon 16419
| | - S Choudhury
- Indian Institute of Technology Hyderabad, Telangana 502285
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - S Cunliffe
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - N Dash
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - G De Nardo
- INFN-Sezione di Napoli, 80126 Napoli
- Università di Napoli Federico II, 80055 Napoli
| | - F Di Capua
- INFN-Sezione di Napoli, 80126 Napoli
- Università di Napoli Federico II, 80055 Napoli
| | - S Di Carlo
- LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay 91898
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - T V Dong
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - D Ferlewicz
- School of Physics, University of Melbourne, Victoria 3010
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - R Garg
- Panjab University, Chandigarh 160014
| | - V Gaur
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Giri
- Indian Institute of Technology Hyderabad, Telangana 502285
| | - P Goldenzweig
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - D Greenwald
- Department of Physics, Technische Universität München, 85748 Garching
| | - O Grzymkowska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - Y Guan
- University of Cincinnati, Cincinnati, Ohio 45221
| | - O Hartbrich
- University of Hawaii, Honolulu, Hawaii 96822
| | | | | | - T Higuchi
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - C-L Hsu
- School of Physics, University of Sydney, New South Wales 2006
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - G Inguglia
- Institute of High Energy Physics, Vienna 1050
| | - A Ishikawa
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Iwasaki
- Osaka City University, Osaka 558-8585
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - H B Jeon
- Kyungpook National University, Daegu 41566
| | - S Jia
- Beihang University, Beijing 100191
| | - Y Jin
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - K K Joo
- Chonnam National University, Gwangju 61186
| | - A B Kaliyar
- Indian Institute of Technology Madras, Chennai 600036
| | - K H Kang
- Kyungpook National University, Daegu 41566
| | - G Karyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Kawasaki
- Kitasato University, Sagamihara 252-0373
| | - H Kichimi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - C H Kim
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - D Y Kim
- Soongsil University, Seoul 06978
| | - H J Kim
- Kyungpook National University, Daegu 41566
| | - K T Kim
- Korea University, Seoul 02841
| | - S H Kim
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - R Kroeger
- University of Mississippi, University, Mississippi 38677
| | - J-F Krohn
- School of Physics, University of Melbourne, Victoria 3010
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - R Kumar
- Punjab Agricultural University, Ludhiana 141004
| | | | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I S Lee
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - J K Lee
- Seoul National University, Seoul 08826
| | - S C Lee
- Kyungpook National University, Daegu 41566
| | - L K Li
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y B Li
- Peking University, Beijing 100871
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - K Lieret
- Ludwig Maximilians University, 80539 Munich
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - T Luo
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - C MacQueen
- School of Physics, University of Melbourne, Victoria 3010
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - T Matsuda
- University of Miyazaki, Miyazaki 889-2192
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | - M Merola
- INFN-Sezione di Napoli, 80126 Napoli
- Università di Napoli Federico II, 80055 Napoli
| | - F Metzner
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | | | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - T J Moon
- Seoul National University, Seoul 08826
| | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - K R Nakamura
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K J Nath
- Indian Institute of Technology Guwahati, Assam 781039
| | - M Nayak
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Wayne State University, Detroit, Michigan 48202
| | - N K Nisar
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Nishimura
- University of Hawaii, Honolulu, Hawaii 96822
| | - K Ogawa
- Niigata University, Niigata 950-2181
| | - H Ono
- Nippon Dental University, Niigata 951-8580
- Niigata University, Niigata 950-2181
| | - Y Onuki
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - P Oskin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - P Pakhlov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- Brookhaven National Laboratory, Upton, New York 11973
| | - T Pang
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - H Park
- Kyungpook National University, Daegu 41566
| | | | - S Patra
- Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | | | - L E Piilonen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - V Popov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | | | - M T Prim
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Rabusov
- Department of Physics, Technische Universität München, 85748 Garching
| | - P K Resmi
- Indian Institute of Technology Madras, Chennai 600036
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - M Rozanska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - G Russo
- Università di Napoli Federico II, 80055 Napoli
| | - D Sahoo
- Tata Institute of Fundamental Research, Mumbai 400005
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- University of Cincinnati, Cincinnati, Ohio 45221
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - J Schueler
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- University of Hawaii, Honolulu, Hawaii 96822
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - Z S Stottler
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - W Sutcliffe
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - M Takizawa
- J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Theoretical Research Division, Nishina Center, RIKEN, Saitama 351-0198
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195
| | - F Tenchini
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - K Trabelsi
- LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay 91898
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | - R Van Tonder
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - K E Varvell
- School of Physics, University of Sydney, New South Wales 2006
| | - A Vossen
- Duke University, Durham, North Carolina 27708
| | - E Waheed
- School of Physics, University of Melbourne, Victoria 3010
| | - B Wang
- Max-Planck-Institut für Physik, 80805 München
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X L Wang
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - S Watanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - J Wiechczynski
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - E Won
- Korea University, Seoul 02841
| | - H Yamamoto
- Department of Physics, Tohoku University, Sendai 980-8578
| | | | - H Ye
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - J H Yin
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhukova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
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Kanis JA, Harvey NC, McCloskey E, Bruyère O, Veronese N, Lorentzon M, Cooper C, Rizzoli R, Adib G, Al-Daghri N, Campusano C, Chandran M, Dawson-Hughes B, Javaid K, Jiwa F, Johansson H, Lee JK, Liu E, Messina D, Mkinsi O, Pinto D, Prieto-Alhambra D, Saag K, Xia W, Zakraoui L, Reginster JY. Correction to: Algorithm for the management of patients at low, high and very high risk of osteoporotic fractures. Osteoporos Int 2020; 31:797-798. [PMID: 32065251 PMCID: PMC7075819 DOI: 10.1007/s00198-020-05297-0] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The article 'Algorithm for the management of patients at low, high and very high risk of osteoporotic fractures',written by J. A. Kanis, was originally published Online First without Open Access. After publication in volume [#], issue [#] and page [#-#], the author decided to opt for Open Choice and to make the article an Open Access publication.
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Affiliation(s)
- J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK.
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia.
| | - N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - E McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
- MRC and Arthritis Research UK Centre for Integrated Research in Musculoskeletal Ageing Mellanby, Sheffield, UK
| | - O Bruyère
- World Health Organization Collaborating Center for the Public Health Aspects of Musculoskeletal Health and Aging, Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - N Veronese
- National Research Council, Neuroscience Institute, Aging Branch, Via Giustiniani 2, 35128, Padova, Italy
| | - M Lorentzon
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, Geriatric Medicine Clinic, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - R Rizzoli
- Service of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - G Adib
- Syrian National Osteoporosis Society, Damascus, Syria
| | - N Al-Daghri
- Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - C Campusano
- Clinica Universidad de los Andes and Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - M Chandran
- Osteoporosis and Bone Metabolism Unit, Department of Endocrinology, Singapore General Hospital, ACADEMIA, 20, College Road, Singapore, 169856, Singapore
| | - B Dawson-Hughes
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
| | - K Javaid
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - F Jiwa
- International Osteoporosis Foundation, Osteoporosis Canada, Toronto, Canada
| | - H Johansson
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
| | - J K Lee
- Beacon International Specialist Centre, Petaling Jaya, Malaysia
| | - E Liu
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
| | - D Messina
- IRO Medical Research Center, Buenos Aires and Rheumatology Section, Cosme Argerich, Buenos Aires, Argentina
| | - O Mkinsi
- Department of Rheumatology, Ibn Rochd University Hospital, Casablanca, Morocco
| | - D Pinto
- Department of Physical Therapy, Marquette University, Milwaukee, WI, USA
- Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - D Prieto-Alhambra
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
- GREMPAL Research Group, CIBERFes and Idiap Jordi Gol, Instituto de Salud Carlos III and Universitat Autonoma deBarcelona, Barcelona, Spain
| | - K Saag
- University of Alabama at Birmingham, Birmingham, AL, USA
| | - W Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Shuaifuyuan No. 1, Wangfujing, Dongcheng District, Beijing, 100730, China
| | - L Zakraoui
- Service de Rhumatologie, University Tunis Manar and HôpitalMongi-Slim, la Marsa, Tunisia
| | - J Y Reginster
- Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
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Yu H, Liu G, Wang M, Ren R, Shim G, Kim JY, Tran MX, Byun D, Lee JK. Plasma-Assisted Surface Modification on the Electrode Interface for Flexible Fiber-Shaped Zn-Polyaniline Batteries. ACS Appl Mater Interfaces 2020; 12:5820-5830. [PMID: 31922390 DOI: 10.1021/acsami.9b19172] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel flexible fiber-shaped zinc-polyaniline battery (FZPB) is proposed to enhance the electrochemical performance, mass loading, and stability of polyaniline cathodes. To this end, electron-cyclotron-resonance oxygen plasma-modified carbon fibers are employed. During plasma treatment, on the carbon-fiber surface, O2+ plasma breaks the C-C, C-H, and C-N bonds to form C radicals, while the O2 molecules are broken down to reactive oxygen species (O+, O2+, O2+, and O22+). The C radicals and the reactive oxygen species are combined to homogeneously form oxygen functional groups, such as -OH, -COOH, and -C═O. The surface area and total pore volume of the treated carbon fibers increase as the plasma attacks. During electrodeposition, aniline interacts with the oxygen functional groups to form N-O and N-H bonds and π-π stacking, resulting in a homogeneous and high-loading polyaniline structure and improved adhesion between polyaniline and carbon fibers. In an FZPB, the cathode with plasma-treated carbon fibers and a polyaniline loading of 0.158 mg mgCF-1 (i.e., 2.36 mg cmCF-1) exhibits a capacity retention of 95.39% after 200 cycles at 100 mA g-1 and a discharge capacity of 83.96 mA h g-1 at such a high current density of 2000 mA g-1, which are ∼1.67 and 1.24 times those of the pristine carbon-fiber-based one, respectively. Furthermore, the FZPB exhibits high flexibility with a capacity retention of 86.4% after bending to a radius of 2.5 mm for 100 cycles as a wearable energy device.
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Affiliation(s)
- Hyunjin Yu
- Center for Energy Storage Research, Clean Energy Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Material Science & Engineering , Korea University , Anam-ro , Seongbuk-gu, Seoul 02841 , Republic of Korea
| | - Guicheng Liu
- Center for Energy Storage Research, Clean Energy Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Physics , Dongguk University , Seoul 04620 , Republic of Korea
| | - Manxiang Wang
- Department of Physics , Dongguk University , Seoul 04620 , Republic of Korea
| | - Ren Ren
- Center for Energy Storage Research, Clean Energy Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Gayoung Shim
- Center for Energy Storage Research, Clean Energy Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Material Science & Engineering , Korea University , Anam-ro , Seongbuk-gu, Seoul 02841 , Republic of Korea
| | - Ji Young Kim
- Center for Energy Storage Research, Clean Energy Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Chemical and Biomolecular Engineering , Yonsei University , 50 Yonsei-ro , Seodaemun-gu, Seoul 03722 , Republic of Korea
| | - Minh Xuan Tran
- Center for Energy Storage Research, Clean Energy Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Energy and Environment Engineering, KIST-School , Korea University of Science and Technology (UST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Dongjin Byun
- Department of Material Science & Engineering , Korea University , Anam-ro , Seongbuk-gu, Seoul 02841 , Republic of Korea
| | - Joong Kee Lee
- Center for Energy Storage Research, Clean Energy Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Energy and Environment Engineering, KIST-School , Korea University of Science and Technology (UST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
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19
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Abstract
OBJECTIVES To analyse the results of treatment for nasolabial cysts according to whether an intraoral sublabial or endoscopic transnasal approach was used, and to determine the recent surgical trend in our hospital. METHODS Twenty-four patients with a histopathologically and radiologically confirmed nasolabial cyst between January 2010 and December 2017 were enrolled in this study. RESULTS Nasolabial cysts were predominant in females (91.7 per cent) and on the left side (54.2 per cent). Treatment involved an intraoral sublabial approach in 12 cases (48.0 per cent) and a transnasal endoscopic approach in 13 cases (52.0 per cent). In 13 cases (52.0 per cent) surgery was performed under local anaesthesia, while in 12 cases (48.0 per cent) it was conducted under general anaesthesia. The most common post-operative complications were numbness of the upper lip or teeth (n = 9, 36.0 per cent). Only one patient (4.0 per cent), who underwent a transnasal endoscopic approach, experienced a reoccurrence. CONCLUSION Surgical resection through an intraoral sublabial or transnasal endoscopic approach is the best treatment for a nasolabial cyst, showing very good results and a low recurrence rate. The recent surgical trend in our hospital is to treat nasolabial cysts using a transnasal endoscopic approach under local anaesthesia.
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Affiliation(s)
- D H Lee
- Department of Otolaryngology - Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Jeonnam, South Korea
| | - T M Yoon
- Department of Otolaryngology - Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Jeonnam, South Korea
| | - J K Lee
- Department of Otolaryngology - Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Jeonnam, South Korea
| | - S C Lim
- Department of Otolaryngology - Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Jeonnam, South Korea
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20
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Kanis JA, Harvey NC, McCloskey E, Bruyère O, Veronese N, Lorentzon M, Cooper C, Rizzoli R, Adib G, Al-Daghri N, Campusano C, Chandran M, Dawson-Hughes B, Javaid K, Jiwa F, Johansson H, Lee JK, Liu E, Messina D, Mkinsi O, Pinto D, Prieto-Alhambra D, Saag K, Xia W, Zakraoui L, Reginster JY. Algorithm for the management of patients at low, high and very high risk of osteoporotic fractures. Osteoporos Int 2020; 31:1-12. [PMID: 31720707 PMCID: PMC7018677 DOI: 10.1007/s00198-019-05176-3] [Citation(s) in RCA: 180] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/18/2019] [Indexed: 01/26/2023]
Abstract
Guidance is provided in an international setting on the assessment and specific treatment of postmenopausal women at low, high and very high risk of fragility fractures. INTRODUCTION The International Osteoporosis Foundation and European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis published guidance for the diagnosis and management of osteoporosis in 2019. This manuscript seeks to apply this in an international setting, taking additional account of further categorisation of increased risk of fracture, which may inform choice of therapeutic approach. METHODS Clinical perspective and updated literature search. RESULTS The following areas are reviewed: categorisation of fracture risk and general pharmacological management of osteoporosis. CONCLUSIONS A platform is provided on which specific guidelines can be developed for national use to characterise fracture risk and direct interventions.
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Affiliation(s)
- J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, S10 2RX, Sheffield, UK.
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia.
| | - N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - E McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, S10 2RX, Sheffield, UK
- MRC and Arthritis Research UK Centre for Integrated Research in Musculoskeletal Ageing Mellanby, Sheffield, UK
| | - O Bruyère
- World Health Organization Collaborating Center for the Public Health Aspects of Musculoskeletal Health and Aging, Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - N Veronese
- National Research Council, Neuroscience Institute, Aging Branch, Via Giustiniani, 2, 35128, Padova, Italy
| | - M Lorentzon
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Region Västra Götaland, Geriatric Medicine Clinic, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - R Rizzoli
- Service of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - G Adib
- Syrian National Osteoporosis Society, Damascus, Syria
| | - N Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Dept., College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - C Campusano
- Clinica Universidad de los Andes and Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - M Chandran
- Osteoporosis and Bone Metabolism Unit, Department of Endocrinology, Singapore General Hospital, ACADEMIA, 20, College Road, Singapore, 169856, Singapore
| | - B Dawson-Hughes
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - K Javaid
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - F Jiwa
- Chair of the Committee of Patients Societies at the International Osteoporosis Foundation, Osteoporosis Canada, Toronto, Canada
| | - H Johansson
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Beech Hill Road, S10 2RX, Sheffield, UK
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
| | - J K Lee
- Beacon International Specialist Centre, Petaling Jaya, Malaysia
| | - E Liu
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
| | - D Messina
- IRO Medical Research Center, Buenos Aires and Rheumatology section, Cosme Argerich, Buenos Aires, Argentina
| | - O Mkinsi
- Department of Rheumatology, Ibn Rochd University Hospital, Casablanca, Morocco
| | - D Pinto
- Department of Physical Therapy, Marquette University, Milwaukee, WI, USA
- Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - D Prieto-Alhambra
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
- GREMPAL Research Group, CIBERFes and Idiap Jordi Gol, Instituto de Salud Carlos III and Universitat Autonoma de Barcelona, Barcelona, Spain
| | - K Saag
- University of Alabama at Birmingham, Birmingham, AL, USA
| | - W Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Shuaifuyuan No. 1, Wangfujing, Dongcheng District, Beijing, 100730, China
| | - L Zakraoui
- Service de Rhumatologie, University Tunis Manar and Hôpital Mongi-Slim, la Marsa, Tunisia
| | - J -Y Reginster
- Chair for Biomarkers of Chronic Diseases, Biochemistry Dept., College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
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Lee DH, Kim JH, Yoon TM, Lee JK, Lim SC. Outcomes of treatment of mammary analogue secretory carcinoma of the parotid gland. Br J Oral Maxillofac Surg 2019; 58:158-162. [PMID: 31859109 DOI: 10.1016/j.bjoms.2019.11.003] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 11/04/2019] [Indexed: 01/30/2023]
Abstract
Mammary analogue secretory carcinoma (MASC) of the salivary gland is a newly-described, rare, malignant tumour. Few patients present with MASC of the parotid gland, so the exact characteristics, outcomes of treatment, and prognosis are unknown. The aim of this study was to analyse the clinical features and outcomes of treatment of MASC of the parotid gland in patients being treated at a single hospital. Five patients with histopathologically-confirmed MASC of the parotid gland between January 2015 and August 2018 were retrospectively enrolled. In all cases preoperative fine-needle aspiration cytology had failed to provide an accurate diagnosis. All patients underwent a macroscopically complete oncological resection. Two patients had postoperative radiotherapy (RT). On immunohistochemical examination all tumours stained for S-100 and mammaglobin but not for DOG1. There were no regional recurrences or distant metastases in any of the patients at their last follow-up. We obtained good results for patients with MASC of the parotid gland with surgical treatment and postoperative RT.
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Affiliation(s)
- D H Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Hwasun Hospital, Hwasun, South Korea.
| | - J H Kim
- Department of Otolaryngology-Head and Neck Surgery, and Pathology, Chonnam National University Medical School & Hwasun Hospital, Hwasun, South Korea
| | - T M Yoon
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Hwasun Hospital, Hwasun, South Korea
| | - J K Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Hwasun Hospital, Hwasun, South Korea
| | - S C Lim
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Hwasun Hospital, Hwasun, South Korea
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22
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Kim S, Song JY, Lee JK, Lee NW. 1796 Learning Curve Could Affect the Surgical Outcome of Radical Hysterectomy in Cervical Cancer. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.481] [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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23
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Cho HW, Lee JK, Ouh YT. 2000 Survival Outcomes of Neoadjuvant Chemotherapy Followed By Laparoscopic or Open Radical Hysterectomy Versus Concurrent Chemoradiation in Patients with Locally Advanced Cervical Cancer. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.494] [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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Lee DH, Yoon TM, Lee JK, Lim SC. Dental implant and fungus ball in the ethmoid sinus. Int J Oral Maxillofac Surg 2019; 48:1594-1596. [PMID: 31416680 DOI: 10.1016/j.ijom.2019.07.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 02/23/2019] [Revised: 06/12/2019] [Accepted: 07/23/2019] [Indexed: 01/04/2023]
Abstract
Dental migration into the ethmoid sinus is extremely rare. Furthermore, it is very unusual that a displaced dental implant is associated with a concomitant fungus ball in the ethmoid sinus. Herein, we report an unusual case of the coexistence of a dental implant and fungus ball in the ethmoid sinus. It appears that this condition has not been reported previously.
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Affiliation(s)
- D H Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, South Korea
| | - T M Yoon
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, South Korea
| | - J K Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, South Korea
| | - S C Lim
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, Hwasun, South Korea.
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Moon SR, Kang HS, Rha HY, Lee JK. C-band PAM-4 signal transmission using soft-output MLSE and LDPC code. Opt Express 2019; 27:110-120. [PMID: 30645352 DOI: 10.1364/oe.27.000110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 12/07/2018] [Indexed: 06/09/2023]
Abstract
We propose a DSP scheme with soft-output maximum likelihood sequence equalizer (sMLSE) and low-overhead (8.51%) low density parity check (LDPC) code for C-band PAM-4 transmission. In order to apply LDPC code in conjunction with MLSE, the conventional hard-output MLSE is modified to have a soft-output value by using the Max-log BCJR algorithm. The feasibility of this approach is experimentally investigated in a 56 Gb/s C-band PAM-4 system. In order to investigate the advantages of the proposed scheme, we compare the performance of the sMLSE-LDPC code to that of MLSE-RS code. Relatively, additional OSNR gain of 0.6 dB ~2.1 dB is achieved. The variation of the relative OSNR gain depends on the burst errors, which originate from the power fading effect. By using an interleaver that spreads burst errors in time, one can see that the relative OSNR gain is improved as 1.6 dB ~2.1 dB. Using the proposed scheme with the interleaver, one can see that the 30 km transmission of 56 Gb/s PAM-4 in the C-band was experimentally demonstrated.
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Peticca KD, Lee JK, Russell MR, Chen BA. Outcomes of hysteroscopic sterilization in an urban academic medical center from 2003 to 2014. Contraception 2018. [DOI: 10.1016/j.contraception.2018.07.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hudaya C, Ahn M, Oh SH, Jeon BJ, Sung YE, Lee JK. Simultaneous etching and transfer — Free multilayer graphene sheets derived from C60 thin films. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Huang CC, Chen YH, Hung CS, Lee JK, Hsu TP, Chuang PY, Chen MF, Ho YL. P951Short-term exposure to ambient air pollutants affected home blood pressure in patients with chronic cardiovascular diseases. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C C Huang
- National Taiwan University Hospital, Taipei, Taiwan ROC
| | - Y H Chen
- National Taiwan University Hospital, Taipei, Taiwan ROC
| | - C S Hung
- National Taiwan University Hospital, Taipei, Taiwan ROC
| | - J K Lee
- National Taiwan University Hospital, Taipei, Taiwan ROC
| | - T P Hsu
- National Taiwan University Hospital, Taipei, Taiwan ROC
| | - P Y Chuang
- National Taiwan University Hospital, Taipei, Taiwan ROC
| | - M F Chen
- National Taiwan University Hospital, Taipei, Taiwan ROC
| | - Y L Ho
- National Taiwan University Hospital, Taipei, Taiwan ROC
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Ardhi REA, Liu G, Tran MX, Hudaya C, Kim JY, Yu H, Lee JK. Self-Relaxant Superelastic Matrix Derived from C 60 Incorporated Sn Nanoparticles for Ultra-High-Performance Li-Ion Batteries. ACS Nano 2018; 12:5588-5604. [PMID: 29863848 DOI: 10.1021/acsnano.8b01345] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Homogeneously dispersed Sn nanoparticles approximately ⩽10 nm in a polymerized C60 (PC60) matrix, employed as the anode of a Li-ion battery, are prepared using plasma-assisted thermal evaporation coupled by chemical vapor deposition. The self-relaxant superelastic characteristics of the PC60 possess the ability to absorb the stress-strain generated by the Sn nanoparticles and can thus alleviate the problem of their extreme volume changes. Meanwhile, well-dispersed dot-like Sn nanoparticles, which are surrounded by a thin SnO2 layer, have suitable interparticle spacing and multilayer structures for alleviating the aggregation of Sn nanoparticles during repeated cycles. The Ohmic characteristic and the built-in electric field formed in the interparticle junction play important roles in enhancing the diffusion and transport rate of Li ions. SPC-50, a Sn-PC60 anode consisting of 50 wt % Sn and 50 wt % PC60, as confirmed by energy-dispersive X-ray spectroscopy analysis, exhibited the highest electrochemical performance. The resulting SPC-50 anode, in a half-cell configuration, exhibited an excellent capacity retention of 97.18%, even after 5000 cycles at a current density of 1000 mA g-1 with a discharge capacity of 834.25 mAh g-1. In addition, the rate-capability performance of this SPC-50 half-cell exhibited a discharge capacity of 544.33 mAh g-1 at a high current density of 10 000 mA g-1, even after the current density was increased 100-fold. Moreover, a very high discharge capacity of 1040.09 mAh g-1 was achieved with a capacity retention of 98.67% after 50 cycles at a current density of 100 mA g-1. Futhermore, a SPC-50 full-cell containing the LiCoO2 cathode exhibited a discharge capacity of 801.04 mAh g-1 and an areal capacity of 1.57 mAh cm-2 with a capacity retention of 95.27% after 350 cycles at a current density of 1000 mA g-1.
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Affiliation(s)
- Ryanda Enggar Anugrah Ardhi
- Center for Energy Storage Research, Green City Research Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Division of Energy and Environment Technology, KIST-School , Korea University of Science and Technology (UST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Guicheng Liu
- Center for Energy Storage Research, Green City Research Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Minh Xuan Tran
- Center for Energy Storage Research, Green City Research Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Division of Energy and Environment Technology, KIST-School , Korea University of Science and Technology (UST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Chairul Hudaya
- Department of Electrical Engineering, Faculty of Engineering , Universitas Indonesia , Kampus Baru UI , Depok 16424 , Indonesia
| | - Ji Young Kim
- Center for Energy Storage Research, Green City Research Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Chemical and Biomolecular Engineering , Yonsei University , 50 Yonsei-ro , Sodaemun-gu, Seoul 120-749 , Republic of Korea
| | - Hyunjin Yu
- Center for Energy Storage Research, Green City Research Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Material Science and Engineering , Korea University , Seoul 136-701 , Republic of Korea
| | - Joong Kee Lee
- Center for Energy Storage Research, Green City Research Institute , Korea Institute of Science and Technology (KIST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Division of Energy and Environment Technology, KIST-School , Korea University of Science and Technology (UST) , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
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Baldwin D, Chow KL, Mashbari H, Omi E, Lee JK. Case reports of atrial and pericardial rupture from blunt cardiac trauma. J Cardiothorac Surg 2018; 13:71. [PMID: 29914563 PMCID: PMC6006918 DOI: 10.1186/s13019-018-0753-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 05/31/2018] [Indexed: 11/20/2022] Open
Abstract
Background Blunt cardiac trauma is diagnosed in less than 10% of trauma patients and covers the range of severity from clinically insignificant myocardial contusions to lethal multi-chamber cardiac rupture. The most common mechanisms of injury include: motor vehicle collisions (MVC), pedestrians struck by motor vehicles and falls from significant heights. A severe complication from blunt cardiac trauma is cardiac chamber rupture with pericardial tear. It is an exceedingly rare diagnosis. A retrospective review identified only 0.002% of all trauma patients presented with this condition. Most patients with atrial rupture do not survive transport to the hospital and upon arrival diagnosis remains difficult. Case presentation We present two cases of atrial and pericardial rupture. The first case is a 33-year-old female involved in a MVC, who presented unresponsive, hypotensive and tachycardic. A left sided hemothorax was diagnosed and a chest tube placed with 1200 mL of bloody output. The patient was taken to the OR emergently. Intraoperatively, a laceration in the right pericardium and a 3 cm defect in the anterior, right atrium were identified. Despite measures to control hemorrhage and resuscitate the patient, the patient did not survive. The second case is a 58-year-old male involved in a high-speed MVC. Similar to the first case, the patient presented unresponsive, hypotensive and tachycardic with a left sided hemothorax. A chest tube was placed with 900 mL of bloody output. Based on the output and ongoing resuscitation requirements, the patient was taken to the OR. Intraoperatively, a 15 cm anterior pericardial laceration was identified. Through the defect, there was brisk bleeding from a 1 cm laceration on the left atrial appendage. The injury was debrided and repaired using a running 3–0 polypropylene suture over a Satinsky clamp. The patient eventually recovered and was discharged home. Conclusions We present two cases of uncontained atrial and pericardial rupture from blunt cardiac trauma. Contained ruptures with an intact pericardium present as a cardiac tamponade while uncontained ruptures present with hemomediastinum or hemothorax. A high degree of suspicion is required to rapidly diagnose and perform the cardiorrhaphy to offer the best chance at survival.
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Affiliation(s)
- D Baldwin
- Department of Surgery, Division of Surgical Critical Care, University of Illinois at Chicago, 1740 W Taylor St, Chicago, IL, 60612, USA.
| | - K L Chow
- Department of Surgery, Division of Surgical Critical Care, University of Illinois at Chicago, 1740 W Taylor St, Chicago, IL, 60612, USA
| | - H Mashbari
- Department of Surgery, Division of Surgical Critical Care, University of Illinois at Chicago, 1740 W Taylor St, Chicago, IL, 60612, USA
| | - E Omi
- Department of Trauma, Division of Trauma /Surgical Critical Care, Advocate Christ Medical Center, Oak Lawn, IL, USA
| | - J K Lee
- Department of Trauma, Division of Trauma /Surgical Critical Care, Advocate Christ Medical Center, Oak Lawn, IL, USA
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Wang M, Yu W, Zhang Y, Woo JY, Chen Y, Wang B, Yun Y, Liu G, Lee JK, Wang L. A novel flexible micro-ratchet/ZnO nano-rods surface with rapid recovery icephobic performance. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wang L, Teng C, Liu J, Wang M, Liu G, Kim JY, Mei Q, Lee JK, Wang J. Robust anti-icing performance of silicon wafer with hollow micro-/nano-structured ZnO. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Wang M, Liu G, Yu H, Lee SH, Wang L, Zheng J, Wang T, Yun Y, Lee JK. ZnO Nanorod Array Modified PVDF Membrane with Superhydrophobic Surface for Vacuum Membrane Distillation Application. ACS Appl Mater Interfaces 2018; 10:13452-13461. [PMID: 29616789 DOI: 10.1021/acsami.8b00271] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The vacuum membrane distillation (VMD) is a promising technology for lots of applications. To solve the membrane fouling and wetting problems, in this paper, a novel ZnO nanorods 1 H,1 H,2 H,2 H-perfluorodecyltriethoxysilane (PDTS) modified poly(vinylidene fluoride) (PVDF) membrane with a micro/nanoscale hierarchical structure and a superhydrophobic surface has been prepared and applied to the VMD process for distilling highly salty water, for the first time. Among these, a pyrolysis-adhesion method is created to obtain the ZnO seeds and fasten them on the PVDF substrate firmly. The novel modified membrane shows a stable superhydrophobic surface with a water contact angle of 152°, easy cleaning property, excellent thermal and mechanical stability, because of the Cassie's state caused by pocketing much air in the hydrophobized ZnO nanorods, the low surface energy of PDTS coating, and the strong adhesion between ZnO nanorods and PVDF membrane, which has built an ideal structure for VMD application. After 8 h VMD of 200 g L-1 NaCl solution, compared to the virgin PVDF membrane, the novel membrane shows a similar permeate flux but a much higher quality permeated liquid because of its unique antifouling and antiwetting caused by the several microns gap between the feed and the membrane. Due to its easy cleaning property, the novel membrane also exhibits an excellent reusability.
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Affiliation(s)
- Manxiang Wang
- College of Environmental Science and Engineering , Beijing Forestry University , Beijing 100083 , P. R. China
| | | | | | - Sang-Hyup Lee
- Green School , Korea University , 145 Anam-ro , Seongbuk-gu, Seoul 02841 , Republic of Korea
| | - Lei Wang
- Beijing Key Lab of Cryobiomedical Engineering and Key Lab of Cryogenics, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China
| | - Jianzhong Zheng
- College of Resources and Environment , University of Chinese Academy of Sciences , 19 A Yuquan Road , Beijing 100049 , P. R. China
| | - Tao Wang
- College of Environmental Science and Engineering , Beijing Forestry University , Beijing 100083 , P. R. China
| | - Yanbin Yun
- College of Environmental Science and Engineering , Beijing Forestry University , Beijing 100083 , P. R. China
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Kim JY, Kim AY, Liu G, Woo JY, Kim H, Lee JK. Li 4SiO 4-Based Artificial Passivation Thin Film for Improving Interfacial Stability of Li Metal Anodes. ACS Appl Mater Interfaces 2018; 10:8692-8701. [PMID: 29461043 DOI: 10.1021/acsami.7b18997] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An amorphous SiO2 (a-SiO2) thin film was developed as an artificial passivation layer to stabilize Li metal anodes during electrochemical reactions. The thin film was prepared using an electron cyclotron resonance-chemical vapor deposition apparatus. The obtained passivation layer has a hierarchical structure, which is composed of lithium silicide, lithiated silicon oxide, and a-SiO2. The thickness of the a-SiO2 passivation layer could be varied by changing the processing time, whereas that of the lithium silicide and lithiated silicon oxide layers was almost constant. During cycling, the surface of the a-SiO2 passivation layer is converted into lithium silicate (Li4SiO4), and the portion of Li4SiO4 depends on the thickness of a-SiO2. A minimum overpotential of 21.7 mV was observed at the Li metal electrode at a current density of 3 mA cm-2 with flat voltage profiles, when an a-SiO2 passivation layer of 92.5 nm was used. The Li metal with this optimized thin passivation layer also showed the lowest charge-transfer resistance (3.948 Ω cm) and the highest Li ion diffusivity (7.06 × 10-14 cm2 s-1) after cycling in a Li-S battery. The existence of the Li4SiO4 artificial passivation layer prevents the corrosion of Li metal by suppressing Li dendritic growth and improving the ionic conductivity, which contribute to the low charge-transfer resistance and high Li ion diffusivity of the electrode.
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Affiliation(s)
- Ji Young Kim
- Center for Energy Convergence Research , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Chemical and Biomolecular Engineering , Yonsei University , 50 Yonsei-ro , Seodaemun-gu, Seoul 03722 , Republic of Korea
| | - A-Young Kim
- Center for Energy Convergence Research , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Guicheng Liu
- Center for Energy Convergence Research , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Jae-Young Woo
- Center for Energy Convergence Research , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
| | - Hansung Kim
- Department of Chemical and Biomolecular Engineering , Yonsei University , 50 Yonsei-ro , Seodaemun-gu, Seoul 03722 , Republic of Korea
| | - Joong Kee Lee
- Center for Energy Convergence Research , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Republic of Korea
- Department of Energy and Environmental Engineering , Korea University of Science and Technology , Daejeon 34113 , Republic of Korea
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Liu G, Wang H, Wang M, Liu W, Anugrah Ardhi RE, Zou D, Lee JK. Study on a stretchable, fiber-shaped, and TiO2 nanowire array-based dye-sensitized solar cell with electrochemical impedance spectroscopy method. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.02.075] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Casati S, Aschberger K, Barroso J, Casey W, Delgado I, Kim TS, Kleinstreuer N, Kojima H, Lee JK, Lowit A, Park HK, Régimbald-Krnel MJ, Strickland J, Whelan M, Yang Y, Zuang V. Standardisation of defined approaches for skin sensitisation testing to support regulatory use and international adoption: position of the International Cooperation on Alternative Test Methods. Arch Toxicol 2018; 92:611-617. [PMID: 29127450 PMCID: PMC5818556 DOI: 10.1007/s00204-017-2097-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 10/17/2017] [Indexed: 11/05/2022]
Abstract
Skin sensitisation is the regulatory endpoint that has been at the centre of concerted efforts to replace animal testing in recent years, as demonstrated by the Organisation for Economic Co-operation and Development (OECD) adoption of five non-animal methods addressing mechanisms under the first three key events of the skin sensitisation adverse outcome pathway. Nevertheless, the currently adopted methods, when used in isolation, are not sufficient to fulfil regulatory requirements on the skin sensitisation potential and potency of chemicals comparable to that provided by the regulatory animal tests. For this reason, a number of defined approaches integrating data from these methods with other relevant information have been proposed and documented by the OECD. With the aim to further enhance regulatory consideration and adoption of defined approaches, the European Union Reference Laboratory for Alternatives to Animal testing in collaboration with the International Cooperation on Alternative Test Methods hosted, on 4-5 October 2016, a workshop on the international regulatory applicability and acceptance of alternative non-animal approaches, i.e., defined approaches, to skin sensitisation assessment of chemicals used in a variety of sectors. The workshop convened representatives from more than 20 regulatory authorities from the European Union, United States, Canada, Japan, South Korea, Brazil and China. There was a general consensus among the workshop participants that to maximise global regulatory acceptance of data generated with defined approaches, international harmonisation and standardisation are needed. Potential assessment criteria were defined for a systematic evaluation of existing defined approaches that would facilitate their translation into international standards, e.g., into a performance-based Test Guideline. Informed by the discussions at the workshop, the ICATM members propose practical ways to further promote the regulatory use and facilitate adoption of defined approaches for skin sensitisation assessments.
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Affiliation(s)
- S Casati
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - K Aschberger
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - J Barroso
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - W Casey
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, Morrisville, NC, 27709, USA
| | - I Delgado
- BraCVAM, National Institute of Quality Control in Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - T S Kim
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, Cheongju, Chungcheongbuk-do, Republic of Korea
| | - N Kleinstreuer
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, Morrisville, NC, 27709, USA
| | - H Kojima
- Japanese Center for the Validation of Alternative Methods, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - J K Lee
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, Cheongju, Chungcheongbuk-do, Republic of Korea
| | - A Lowit
- Office of Pesticide Programs, U.S. Environmental Protection Agency, Washington DC, 20460, USA
| | - H K Park
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, Cheongju, Chungcheongbuk-do, Republic of Korea
| | - M J Régimbald-Krnel
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - J Strickland
- Integrated Laboratory Systems inc., Research Triangle Park, Morrisville, NC, 27709, USA
| | - M Whelan
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - Y Yang
- Institute of Toxicology, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 510300, China
| | - Valérie Zuang
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy.
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Liu CW, Lee JK, Huang JH, Lin HH. Image Quiz: An Old Woman with a Fava-Bean in the Heart. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791402100311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- CW Liu
- Tri-service General Hospital, Division of Cardiology, Department of Medicine, Songshan Branch, No. 131, Jiankang Road, Songshan District, Taipei City 105, Taiwan
| | | | - JH Huang
- Far Eastern Memorial Hospital, Division of Cardiovascular Surgery, Cardiovascular Center, No.21, Sec. 2, Nanya S. Road, Banqiao District, New Taipei City, Taiwan
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Lee JK, Akgun B, Jiang Z, Narayanan S, Foster MD. Altering surface fluctuations by blending tethered and untethered chains. Soft Matter 2017; 13:8264-8270. [PMID: 29071320 DOI: 10.1039/c7sm01616f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
"Partially tethering" a thin film of a polymer melt by covalently attaching to the substrate a fraction of the chains in an unentangled melt dramatically increases the relaxation time of the surface height fluctuations. This phenomenon is observed even when the film thickness, h, is 20 times the unperturbed chain radius, Rg,tethered, of the tethered chains, indicating that partial tethering is more influential than any physical attraction with the substrate. Furthermore, a partially tethered layer of a low average molecular weight of 5k showed much slower surface fluctuations than did a reference layer of pure untethered chains of much greater molecular weight (48k), so the partial tethering effect is stronger than the effects of entanglement and increase in glass transition temperature, Tg, with molecular weight. Partial tethering offers a means of tailoring these fluctuations which influence wetting, adhesion, and tribology of the surface.
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Affiliation(s)
- J K Lee
- Department of Polymer Science, The University of Akron, Akron, OH 44325, USA.
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Barry OH, Lee JK, Burke A. Concordance between antenatal contraception plan and postpartum contraception received: how often do women receive their requested method? Contraception 2017. [DOI: 10.1016/j.contraception.2017.07.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Wei FY, Lee JK, Wei L, Qu F, Zhang JZ. Correlation of insulin-like growth factor 1 and osteoarthritic cartilage degradation: a spontaneous osteoarthritis in guinea-pig. Eur Rev Med Pharmacol Sci 2017; 21:4493-4500. [PMID: 29131268 PMCID: PMC6100760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE The pathogenesis of osteoarthritis centers on the imbalance between catabolic and anabolic processes in cartilage metabolism. Insulin growth factor 1 (IGF-1) has been shown to have anabolic effects in cartilage in vitro. This study aim to determine whether IGF-1 on cartilage is associated with loss of chondrocyte and extracellular matrix breakdown using the Hartley guinea pig model. MATERIALS AND METHODS Cartilage from the medial and lateral tibial plateau of 6-month and 12-month old Hartley guinea pigs were used for this study. Histological analysis was performed with hematoxylin-eosin (HE) and toluidine blue staining. Safranin-O staining was used to quantify proteoglycan (PG) loss and the extent of cartilage damage by Modified Mankin score. Distribution of IGF-1 was demonstrated with in situ hybridization techniques. IGF-1 mRNA levels were assessed using Real-time PCR. RESULTS Histological loss of chondrocytes, and cartilage matrix and decreased IGF-1 distribution were demonstrated in a temporal and spatial manner. Compared to the 6-month old samples, the 12-month specimens had significantly cartilage degeneration and less cartilage matrix and PGs staining. Decreased level of IGF-1 was also observed in the 12-month samples. These observations were more pronounced in the medial tibial plateau when compared to the lateral plateau. CONCLUSIONS The decreased level of IGF-1 may play a critical role for maintaining the balance between catabolic and anabolic processes in cartilage metabolism during the development of osteoarthritis. Thus, the increase of IGF-1 may be applicable to developing OA therapy.
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Affiliation(s)
- F-Y Wei
- Department of Orthopedics, Beijing Tongren Hospital, Capital Medical University, Beijing, China.
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Ma SJ, Sa KJ, Hong TK, Lee JK. Genetic diversity and population structure analysis in Perilla frutescens from Northern areas of China based on simple sequence repeats. Genet Mol Res 2017; 16:gmr-16-03-gmr.16039746. [PMID: 28973731 DOI: 10.4238/gmr16039746] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, 21 simple sequence repeat (SSR) markers were used to evaluate the genetic diversity and population structure among 77 Perilla accessions from high-latitude and middle-latitude areas of China. Ninety-five alleles were identified with an average of 4.52 alleles per locus. The average polymorphic information content (PIC) and genetic diversity values were 0.346 and 0.372, respectively. The level of genetic diversity and PIC value for cultivated accessions of Perilla frutescens var. frutescens from middle-latitude areas were higher than accessions from high-latitude areas. Based on the dendrogram of unweighted pair group method with arithmetic mean (UPGMA), all accessions were classified into four major groups with a genetic similarity of 46%. All accessions of the cultivated var. frutescens were discriminated from the cultivated P. frutescens var. crispa. Furthermore, most accessions of the cultivated var. frutescens collected in high-latitude and middle-latitude areas were distinguished depending on their geographical location. However, the geographical locations of several accessions of the cultivated var. frutescens have no relation with their positions in the UPGMA dendrogram and population structure. This result implies that the diffusion of accessions of the cultivated Perilla crop in the northern areas of China might be through multiple routes. On the population structure analysis, 77 Perilla accessions were divided into Group I, Group II, and an admixed group based on a membership probability threshold of 0.8. Finally, the findings in this study can provide useful theoretical knowledge for further study on the population structure and genetic diversity of Perilla and benefit for Perilla crop breeding and germplasm conservation.
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Affiliation(s)
- S J Ma
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Korea
| | - K J Sa
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Korea
| | - T K Hong
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Korea
| | - J K Lee
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Korea
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Lee JK, Wu J, Banks S, Bernick C, Massand MG, Modic MT, Ruggieri P, Jones SE. Prevalence of Traumatic Findings on Routine MRI in a Large Cohort of Professional Fighters. AJNR Am J Neuroradiol 2017; 38:1303-1310. [PMID: 28473342 PMCID: PMC7959893 DOI: 10.3174/ajnr.a5175] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 07/20/2016] [Accepted: 02/10/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND PURPOSE Previous studies investigating MR imaging abnormalities among fighters have had small sample sizes. This investigation assessed a large number of fighters using the same conventional sequences on the same scanner. MATERIALS AND METHODS Conventional 3T MR imaging was used to assess 499 fighters (boxers, mixed martial artists, and martial artists) and 62 controls for nonspecific WM changes, cerebral microhemorrhage, cavum septum pellucidum, and cavum vergae. The lengths of the cavum septum pellucidum and cavum vergae and the ratio of cavum septum pellucidum to the septum pellucidum lengths were assessed. RESULTS The prevalence of nonspecific WM changes was similar between groups. Fighters had a prevalence of cerebral microhemorrhage (4.2% versus 0% for controls, P = .152). Fighters had a higher prevalence of cavum septum pellucidum versus controls (53.1% versus 17.7%, P < .001) and cavum vergae versus controls (14.4% versus 0%, P < .001). The lengths of the cavum septum pellucidum plus the cavum vergae (P < .001), cavum septum pellucidum (P = .025), and cavum septum pellucidum to the septum pellucidum length ratio (P = .009) were higher in fighters than in controls. The number of fights slightly correlated with cavum septum pellucidum plus cavum vergae length (R = 0.306, P < .001) and cavum septum pellucidum length (R = 0.278, P < .001). When fighters were subdivided into boxers, mixed martial artists, and martial artists, results were similar to those in the whole-group analysis. CONCLUSIONS This study assessed MR imaging findings in a large cohort demonstrating a significantly increased prevalence of cavum septum pellucidum among fighters. Although cerebral microhemorrhages were higher in fighters than in controls, this finding was not statistically significant, possibly partially due to underpowering of the study.
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Affiliation(s)
- J K Lee
- From the Imaging Institute (J.K.L., J.W., M.G.M., M.T.M., P.R., S.E.J.)
| | - J Wu
- From the Imaging Institute (J.K.L., J.W., M.G.M., M.T.M., P.R., S.E.J.)
| | - S Banks
- Lou Ruvo Center for Brain Health (S.B., C.B.), Cleveland Clinic, Cleveland, Ohio
| | - C Bernick
- Lou Ruvo Center for Brain Health (S.B., C.B.), Cleveland Clinic, Cleveland, Ohio
| | - M G Massand
- From the Imaging Institute (J.K.L., J.W., M.G.M., M.T.M., P.R., S.E.J.)
| | - M T Modic
- From the Imaging Institute (J.K.L., J.W., M.G.M., M.T.M., P.R., S.E.J.)
| | - P Ruggieri
- From the Imaging Institute (J.K.L., J.W., M.G.M., M.T.M., P.R., S.E.J.)
| | - S E Jones
- From the Imaging Institute (J.K.L., J.W., M.G.M., M.T.M., P.R., S.E.J.)
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Halim M, Liu G, Ardhi REA, Hudaya C, Wijaya O, Lee SH, Kim AY, Lee JK. Pseudocapacitive Characteristics of Low-Carbon Silicon Oxycarbide for Lithium-Ion Capacitors. ACS Appl Mater Interfaces 2017; 9:20566-20576. [PMID: 28557417 DOI: 10.1021/acsami.7b04069] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Lithium-ion capacitors (LICs) and lithium-ion batteries (LIBs) are important energy storage devices. As a material with good mechanical, thermal, and chemical properties, low-carbon silicon oxycarbide (LC-SiOC), a kind of silicone oil-derived SiOC, is of interest as an anode material, and we have examined the electrochemical behavior of LC-SiOC in LIB and LIC devices. We found that the lithium storage mechanism in LC-SiOC, prepared by pyrolysis of phenyl-rich silicon oil, depends on an oxygen-driven rather than a carbon-driven mechanism within our experimental scope. An investigation of the electrochemical performance of LC-SiOC in half- and full-cell LIBs revealed that LC-SiOC might not be suitable for full-cell LIBs because it has a lower capacity (238 mAh g-1) than that of graphite (290 mAh g-1) in a cutoff voltage range of 0-1 V versus Li/Li+, as well as a substantial irreversible capacity. Surprisingly, LC-SiOC acts as a pseudocapacitive material when it is tested in a half-cell configuration within a narrow cutoff voltage range of 0-1 V versus Li/Li+. Further investigation of a "hybrid" supercapacitor, also known as an LIC, in which LC-SiOC is coupled with an activated carbon electrode, demonstrated that a power density of 156 000 W kg-1 could be achieved while maintaining an energy density of 25 Wh kg-1. In addition, the resulting capacitor had an excellent cycle life, holding ∼90% of its energy density even after 75 000 cycles. Thus, LC-SiOC is a promising active material for LICs in applications such as heavy-duty electric vehicles.
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Affiliation(s)
- Martin Halim
- Center for Energy Convergence, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
- Energy and Environmental Engineering, Korea University of Science and Technology , Daejeon 34113, Republic of Korea
| | - Guicheng Liu
- Center for Energy Convergence, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
| | - Ryanda Enggar Anugrah Ardhi
- Center for Energy Convergence, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
- Energy and Environmental Engineering, Korea University of Science and Technology , Daejeon 34113, Republic of Korea
| | - Chairul Hudaya
- Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia , Depok 16421, Republic of Indonesia
| | - Ongky Wijaya
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Katolik Parahyangan , Bandung 40141, Republic of Indonesia
| | - Sang-Hyup Lee
- Center of Water Resource Cycle Research, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
| | - A-Young Kim
- Center for Energy Convergence, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
| | - Joong Kee Lee
- Center for Energy Convergence, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
- Energy and Environmental Engineering, Korea University of Science and Technology , Daejeon 34113, Republic of Korea
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Zhu Y, Hamlow LA, He CC, Lee JK, Gao J, Berden G, Oomens J, Rodgers MT. Gas-Phase Conformations and N-Glycosidic Bond Stabilities of Sodium Cationized 2'-Deoxyguanosine and Guanosine: Sodium Cations Preferentially Bind to the Guanine Residue. J Phys Chem B 2017; 121:4048-4060. [PMID: 28355483 DOI: 10.1021/acs.jpcb.7b02906] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
2'-Deoxyguanosine (dGuo) and guanosine (Guo) are fundamental building blocks of DNA and RNA nucleic acids. In order to understand the effects of sodium cationization on the gas-phase conformations and stabilities of dGuo and Guo, infrared multiple photon dissociation (IRMPD) action spectroscopy experiments and complementary electronic structure calculations are performed. The measured IRMPD spectra of [dGuo+Na]+ and [Guo+Na]+ are compared to calculated IR spectra predicted for the stable low-energy structures computed for these species to determine the most favorable sodium cation binding sites, identify the structures populated in the experiments, and elucidate the influence of the 2'-hydroxyl substituent on the structures and IRMPD spectral features. These results are compared with those from a previous IRMPD study of the protonated guanine nucleosides to elucidate the differences between sodium cationization and protonation on structure. Energy-resolved collision-induced dissociation (ER-CID) experiments and survival yield analyses of protonated and sodium cationized dGuo and Guo are performed to compare the effects of these cations toward activating the N-glycosidic bonds of these nucleosides. For both [dGuo+Na]+ and [Guo+Na]+, the gas-phase structures populated in the experiments are found to involve bidentate binding of the sodium cation to the O6 and N7 atoms of guanine, forming a 5-membered chelation ring, with guanine found in both anti and syn orientations and C2'-endo (2T3 or 3T2) puckering of the sugar. The ER-CID results, IRMPD yields and the computed C1'-N9 bond lengths indicate that sodium cationization activates the N-glycosidic bond less effectively than protonation for both dGuo and Guo. The 2'-hydroxyl substituent of Guo is found to impact the preferred structures very little except that it enables a 2'OH···3'OH hydrogen bond to be formed, and stabilizes the N-glycosidic bond relative to that of dGuo in both the sodium cationized and protonated complexes.
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Affiliation(s)
- Y Zhu
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
| | - L A Hamlow
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
| | - C C He
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
| | - J K Lee
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
| | - J Gao
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University , Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - G Berden
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University , Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - J Oomens
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University , Toernooiveld 7c, 6525ED Nijmegen, The Netherlands
| | - M T Rodgers
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
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Lee DH, Kim JH, Lee JK, Lim SC. Sclerosing mucoepidermoid carcinoma of the sublingual gland. Eur Ann Otorhinolaryngol Head Neck Dis 2017; 134:355-356. [PMID: 28330594 DOI: 10.1016/j.anorl.2016.07.010] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 06/21/2016] [Accepted: 07/04/2016] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Sclerosing mucoepidermoid carcinoma of the salivary gland is a rare subtype of mucoepidermoid carcinoma. The most common site of sclerosing mucoepidermoid carcinoma of the salivary glands is the parotid gland, followed by the submandibular gland, and the minor salivary glands. OBSERVATION Here we report the first case of sclerosing mucoepidermoid carcinoma of the sublingual gland. DISCUSSION Clinicians should consider sclerosing mucoepidermoid carcinoma in the differential diagnosis of salivary gland neoplasm. Surgical excision with clear margins seems to be a sufficient initial treatment option for sclerosing mucoepidermoid carcinoma of the salivary gland.
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Affiliation(s)
- D H Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, 160 Ilsimri, 519-809 Hwasun, Jeonnam, South Korea
| | - J H Kim
- Department of Pathology, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, 160 Ilsimri, 519-809 Hwasun, Jeonnam, South Korea
| | - J K Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, 160 Ilsimri, 519-809 Hwasun, Jeonnam, South Korea.
| | - S C Lim
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, 160 Ilsimri, 519-809 Hwasun, Jeonnam, South Korea
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Lee JK, Moraru GM, Stokes JV, Wills RW, Mitchell E, Unz E, Moore-Henderson B, Harper AB, Varela-Stokes AS. Rickettsia parkeri and "Candidatus Rickettsia andeanae" in Questing Amblyomma maculatum (Acari: Ixodidae) From Mississippi. J Med Entomol 2017; 54:476-480. [PMID: 27773866 PMCID: PMC5850715 DOI: 10.1093/jme/tjw175] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 09/22/2016] [Indexed: 05/27/2023]
Abstract
Amblyomma maculatum Koch (Acari: Ixodidae), the primary vector for Rickettsia parkeri, may also be infected with a rickettsia of unknown pathogenicity, "Candidatus Rickettsia andeanae." Infection rates with these rickettsiae vary geographically, and coinfected ticks have been reported. In this study, infection rates of R. parkeri and "Ca. R. andeanae" were evaluated, and rickettsial DNA levels quantified, in 335 questing adult A. maculatum collected in 2013 (n = 95), 2014 (n = 139), and 2015 (n = 101) from Oktibbeha County, MS. Overall infection rates of R. parkeri and "Ca. R. andeanae" were 28.7% and 9.3%, respectively, with three additional A. maculatum (0.9%) coinfected. While R. parkeri-infected ticks were detected all three years (34.7% in 2013; 13.7% in 2014; 43.6% in 2015), "Ca. R. andeanae" was not detected in 2013, and was detected at rates of 10.8% in 2014, and 15.8% in 2015. Interestingly, rickettsial DNA levels in singly-infected ticks were significantly lower in "Ca. R. andeanae"-infected ticks compared to R. parkeri-infected ticks (P < 0.0001). Thus, both infection rates and rickettsial DNA levels were higher for R. parkeri than "Ca. R. andeanae." Infection rates of R. parkeri were also higher, and "Ca. R. andeanae" lower, here compared to A. maculatum reported previously in Kansas and Oklahoma. As we continue to monitor infection rates and levels, we anticipate that understanding temporal changes will improve our awareness of human risk for spotted fever rickettsioses. Further, these data may lead to additional studies to evaluate potential interactions among sympatric Rickettsia species in A. maculatum at the population level.
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Affiliation(s)
- J K Lee
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
| | - G M Moraru
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
| | - J V Stokes
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
| | - R W Wills
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762
| | - E Mitchell
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
| | - E Unz
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
| | - B Moore-Henderson
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
| | - A B Harper
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
| | - A S Varela-Stokes
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, 240 Wise Center Dr., Mississippi State, MS 39762 (; ; ; ; ; ; ; )
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Kim JT, Hong SH, Park HJ, Kim YS, Suh JY, Lee JK, Park JM, Maity T, Eckert J, Kim KB. Deformation mechanisms to ameliorate the mechanical properties of novel TRIP/TWIP Co-Cr-Mo-(Cu) ultrafine eutectic alloys. Sci Rep 2017; 7:39959. [PMID: 28067248 PMCID: PMC5220307 DOI: 10.1038/srep39959] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 11/01/2016] [Accepted: 11/28/2016] [Indexed: 11/09/2022] Open
Abstract
In the present study, the microstructural evolution and the modulation of the mechanical properties have been investigated for a Co-Cr-Mo (CCM) ternary eutectic alloy by addition of a small amount of copper (0.5 and 1 at.%). The microstructural observations reveal a distinct dissimilarity in the eutectic structure such as a broken lamellar structure and a well-aligned lamellar structure and an increasing volume fraction of Co lamellae as increasing amount of copper addition. This microstructural evolution leads to improved plasticity from 1% to 10% without the typical tradeoff between the overall strength and compressive plasticity. Moreover, investigation of the fractured samples indicates that the CCMCu alloy exhibits higher plastic deformability and combinatorial mechanisms for improved plastic behavior. The improved plasticity of CCMCu alloys originates from several deformation mechanisms; i) slip, ii) deformation twinning, iii) strain-induced transformation and iv) shear banding. These results reveal that the mechanical properties of eutectic alloys in the Co-Cr-Mo system can be ameliorated by micro-alloying such as Cu addition.
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Affiliation(s)
- J T Kim
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - S H Hong
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - H J Park
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - Y S Kim
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - J Y Suh
- High Temperature Energy Materials Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seoungbuk-gu, Seoul 136-791, Republic of Korea
| | - J K Lee
- Division of Advanced Materials Engineering, Kongju National University, Cheonan 330-717, Republic of Korea
| | - J M Park
- Global Technology Center, Samsung Electronics Co., Ltd, 129 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-742, Republic of Korea
| | - T Maity
- Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700 Leoben, Austria
| | - J Eckert
- Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700 Leoben, Austria.,Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700 Leoben, Austria
| | - K B Kim
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
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Ma SJ, Lee JK. Research Article Morphological Variation of Perilla Crop and Their Weedy Types from Northern and Southern Areas of China. Genet Mol Res 2017. [DOI: 10.4238/gmr16039853] [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: 11/03/2022]
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Abstract
The structural similarity of eugenol with capsaicin suggests that these two agents may share molecular mechanisms to produce their effects. We investigated the effects of eugenol in comparison with those of capsaicin using whole-cell patch clamp and Fura-2-based calcium-imaging techniques in a heterologous expression system and with sensory neurons. In vanilloid receptor 1 (VR1)-expressing human embryonic kidney (HEK) 293 cells and trigeminal ganglion (TG) neurons, eugenol activated inward currents, whereas capsazepine, a competitive VR antagonist, and ruthenium red (RR), a functional VR antagonist, completely blocked eugenol-induced inward currents. Moreover, eugenol caused elevation of [Ca2+]i, and this was completely abolished by both capsazepine and ruthenium red in VR1-expressing HEK 293 cells and TG neurons. Our results provide strong evidence that eugenol produces its effects, at least in part, via VR1 expressed by the sensory nerve endings in the teeth.
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Affiliation(s)
- B H Yang
- Department of Physiology, College of Dentistry and Dental Research Institute, Seoul National University, 28-2 Yeongeon-Dong ChongNo-Ku, Seoul, Korea 110-749
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Kristianto H, Arie AA, Susanti RF, Halim M, Lee JK. The effect of activated carbon support surface modification on characteristics of carbon nanospheres prepared by deposition precipitation of Fe-catalyst. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1757-899x/162/1/012034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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