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Lim S, Ng W, Chua W, Descallar J, Spring K, De Souza P. 1558 Quality of life and circulating tumour cells in patients treated with neoadjuvant chemoradiation for rectal cancer - is there a link? Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30648-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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202
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Kim YA, Kim KM, Lim S, Choi SH, Moon JH, Kim JH, Kim SW, Jang HC, Shin CS. Favorable effect of dietary vitamin C on bone mineral density in postmenopausal women (KNHANES IV, 2009): discrepancies regarding skeletal sites, age, and vitamin D status. Osteoporos Int 2015; 26:2329-37. [PMID: 25906241 DOI: 10.1007/s00198-015-3138-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/07/2015] [Indexed: 01/30/2023]
Abstract
UNLABELLED Dietary vitamin C intake showed significant positive associations with BMD in postmenopausal women, especially with vitamin D deficiency. INTRODUCTION Although there is a positive role of vitamin C in osteoblastogenesis, debate remains about the contribution of vitamin C to bone mineral density (BMD) in humans. METHODS Data were derived from the Fourth Korean National Health and Nutrition Examination Survey. Dietary information was assessed using a 24-h dietary recall questionnaire. BMD was measured by dual-energy X-ray absorptiometry at the lumbar and hip. RESULTS A total of 1,196 postmenopausal women aged 50 years and older were stratified into tertiles by daily dietary vitamin C intake. After adjusting for traditional confounders, dietary vitamin C intake tertile was significantly positively associated with BMD at all sites (R = 0.513 for lumbar spine (LS) and R = 0.657 for femoral neck (FN), P < 0.05 for each). The subjects with osteoporosis had significantly lower dietary vitamin C intake than did subjects without osteoporosis (74.4 ± 66.2 vs 94.1 ± 78.6 mg/day for LS and 65.5 ± 56.6 vs 94.3 ± 79.2 mg/day for FN, respectively, P < 0.001). The multiple-adjusted odds ratio for osteoporosis for dietary vitamin C <100 mg/day was 1.790 (95 % CI 1.333-2.405, P < 0.001). However, the significant association between vitamin C intake and BMD was only observed in subjects with vitamin D deficiency and aged 50-59 years or >70 years. CONCLUSION Dietary vitamin C intake was positively associated with BMD in postmenopausal women, and inadequate vitamin C intake could increase the risk of osteoporosis.
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Moon J, Lim S, Han J. Carotid Intima-Media Thickness Is Associated With the Progression of Cognitive Impairment in Older Adults. J Vasc Surg 2015. [DOI: 10.1016/j.jvs.2015.06.198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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204
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Moon JH, Lim S, Han JW, Kim KM, Choi SH, Kim KW, Jang HC. Serum 25-hydroxyvitamin D level and the risk of mild cognitive impairment and dementia: the Korean Longitudinal Study on Health and Aging (KLoSHA). Clin Endocrinol (Oxf) 2015; 83:36-42. [PMID: 25641087 DOI: 10.1111/cen.12733] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 01/09/2015] [Accepted: 01/28/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The association of low vitamin D status with mild cognitive impairment (MCI), a preclinical condition that can lead to dementia, has not yet been fully explored. Our aim was to investigate the association between vitamin D status and the future risk of MCI and dementia in older adults. DESIGN, SETTING AND PARTICIPANTS We conducted a population-based prospective study as a part of the Korean Longitudinal Study on Health and Aging. Four hundred and twelve elderly participants who completed evaluations of cognitive function and metabolic parameters in 2005-2006 and 2010-2011 were analysed. MAJOR OUTCOME MEASURE The rate of development of MCI or dementia during the study period was compared according to baseline vitamin D status. Binary logistic regression analysis was performed to investigate any independent association between vitamin D status and the risks of MCI or dementia. RESULTS Among 405 subjects that remained after excluding seven demented subjects at baseline, 338 subjects remained unchanged or improved in their diagnosis for cognitive function during the study period, whereas 67 subjects showed progression to MCI or dementia. When analyzing 236 subjects whose baseline mini-mental state examination (MMSE) scores were <27, severe vitamin D deficiency at baseline, defined as <25 nmol/l, was independently associated with the progression of cognitive impairment. Among 297 subjects who were normal at baseline, 50 acquired MCI and 247 remained normal. Severe vitamin D deficiency was also independently associated with the development of MCI when analyzing 145 subjects whose baseline MMSE scores were <27. CONCLUSION Severe vitamin D deficiency was independently associated with the future risk of MCI as well as dementia, especially in older adults whose baseline MMSE scores had decreased only modestly.
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Lim S, LoSasso T. SU-E-P-16: A Feasibility Study of Using Eclipse AAA for SRS Treatement. Med Phys 2015. [DOI: 10.1118/1.4923950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tang G, LoSasso T, Saleh Z, Mechalakos J, Lim S, Laufer I, Bilsky M, Yamada J, Lovelock D. SU-E-T-328: Dosimetric Impact of Cobalt-Chrome Stabilization Hardware in Paraspinal Radiation Therapy. Med Phys 2015. [DOI: 10.1118/1.4924689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Spring K, Lim S, Descallar J, Ng W, Chua W, de Souza P, Bokey L, MacKenzie S. P-300 Circulating tumour cell release in the peri-operative setting during curative colorectal cancer surgery. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Aguilar M, Aisa D, Alpat B, Alvino A, Ambrosi G, Andeen K, Arruda L, Attig N, Azzarello P, Bachlechner A, Barao F, Barrau A, Barrin L, Bartoloni A, Basara L, Battarbee M, Battiston R, Bazo J, Becker U, Behlmann M, Beischer B, Berdugo J, Bertucci B, Bigongiari G, Bindi V, Bizzaglia S, Bizzarri M, Boella G, de Boer W, Bollweg K, Bonnivard V, Borgia B, Borsini S, Boschini MJ, Bourquin M, Burger J, Cadoux F, Cai XD, Capell M, Caroff S, Casaus J, Cascioli V, Castellini G, Cernuda I, Cerreta D, Cervelli F, Chae MJ, Chang YH, Chen AI, Chen H, Cheng GM, Chen HS, Cheng L, Chou HY, Choumilov E, Choutko V, Chung CH, Clark C, Clavero R, Coignet G, Consolandi C, Contin A, Corti C, Cortina Gil E, Coste B, Creus W, Crispoltoni M, Cui Z, Dai YM, Delgado C, Della Torre S, Demirköz MB, Derome L, Di Falco S, Di Masso L, Dimiccoli F, Díaz C, von Doetinchem P, Donnini F, Du WJ, Duranti M, D'Urso D, Eline A, Eppling FJ, Eronen T, Fan YY, Farnesini L, Feng J, Fiandrini E, Fiasson A, Finch E, Fisher P, Galaktionov Y, Gallucci G, García B, García-López R, Gargiulo C, Gast H, Gebauer I, Gervasi M, Ghelfi A, Gillard W, Giovacchini F, Goglov P, Gong J, Goy C, Grabski V, Grandi D, Graziani M, Guandalini C, Guerri I, Guo KH, Haas D, Habiby M, Haino S, Han KC, He ZH, Heil M, Hoffman J, Hsieh TH, Huang ZC, Huh C, Incagli M, Ionica M, Jang WY, Jinchi H, Kanishev K, Kim GN, Kim KS, Kirn T, Kossakowski R, Kounina O, Kounine A, Koutsenko V, Krafczyk MS, La Vacca G, Laudi E, Laurenti G, Lazzizzera I, Lebedev A, Lee HT, Lee SC, Leluc C, Levi G, Li HL, Li JQ, Li Q, Li Q, Li TX, Li W, Li Y, Li ZH, Li ZY, Lim S, Lin CH, Lipari P, Lippert T, Liu D, Liu H, Lolli M, Lomtadze T, Lu MJ, Lu SQ, Lu YS, Luebelsmeyer K, Luo JZ, Lv SS, Majka R, Mañá C, Marín J, Martin T, Martínez G, Masi N, Maurin D, Menchaca-Rocha A, Meng Q, Mo DC, Morescalchi L, Mott P, Müller M, Ni JQ, Nikonov N, Nozzoli F, Nunes P, Obermeier A, Oliva A, Orcinha M, Palmonari F, Palomares C, Paniccia M, Papi A, Pauluzzi M, Pedreschi E, Pensotti S, Pereira R, Picot-Clemente N, Pilo F, Piluso A, Pizzolotto C, Plyaskin V, Pohl M, Poireau V, Postaci E, Putze A, Quadrani L, Qi XM, Qin X, Qu ZY, Räihä T, Rancoita PG, Rapin D, Ricol JS, Rodríguez I, Rosier-Lees S, Rozhkov A, Rozza D, Sagdeev R, Sandweiss J, Saouter P, Sbarra C, Schael S, Schmidt SM, Schulz von Dratzig A, Schwering G, Scolieri G, Seo ES, Shan BS, Shan YH, Shi JY, Shi XY, Shi YM, Siedenburg T, Son D, Spada F, Spinella F, Sun W, Sun WH, Tacconi M, Tang CP, Tang XW, Tang ZC, Tao L, Tescaro D, Ting SCC, Ting SM, Tomassetti N, Torsti J, Türkoğlu C, Urban T, Vagelli V, Valente E, Vannini C, Valtonen E, Vaurynovich S, Vecchi M, Velasco M, Vialle JP, Vitale V, Vitillo S, Wang LQ, Wang NH, Wang QL, Wang RS, Wang X, Wang ZX, Weng ZL, Whitman K, Wienkenhöver J, Wu H, Wu X, Xia X, Xie M, Xie S, Xiong RQ, Xin GM, Xu NS, Xu W, Yan Q, Yang J, Yang M, Ye QH, Yi H, Yu YJ, Yu ZQ, Zeissler S, Zhang JH, Zhang MT, Zhang XB, Zhang Z, Zheng ZM, Zhuang HL, Zhukov V, Zichichi A, Zimmermann N, Zuccon P, Zurbach C. Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station. PHYSICAL REVIEW LETTERS 2015; 114:171103. [PMID: 25978222 DOI: 10.1103/physrevlett.114.171103] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Indexed: 06/04/2023]
Abstract
A precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1 GV to 1.8 TV is presented based on 300 million events. Knowledge of the rigidity dependence of the proton flux is important in understanding the origin, acceleration, and propagation of cosmic rays. We present the detailed variation with rigidity of the flux spectral index for the first time. The spectral index progressively hardens at high rigidities.
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Lim S, Kaiser M. Developmental time windows for axon growth influence neuronal network topology. BIOLOGICAL CYBERNETICS 2015; 109:275-86. [PMID: 25633181 PMCID: PMC4366563 DOI: 10.1007/s00422-014-0641-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/21/2014] [Indexed: 06/04/2023]
Abstract
Early brain connectivity development consists of multiple stages: birth of neurons, their migration and the subsequent growth of axons and dendrites. Each stage occurs within a certain period of time depending on types of neurons and cortical layers. Forming synapses between neurons either by growing axons starting at similar times for all neurons (much-overlapped time windows) or at different time points (less-overlapped) may affect the topological and spatial properties of neuronal networks. Here, we explore the extreme cases of axon formation during early development, either starting at the same time for all neurons (parallel, i.e., maximally overlapped time windows) or occurring for each neuron separately one neuron after another (serial, i.e., no overlaps in time windows). For both cases, the number of potential and established synapses remained comparable. Topological and spatial properties, however, differed: Neurons that started axon growth early on in serial growth achieved higher out-degrees, higher local efficiency and longer axon lengths while neurons demonstrated more homogeneous connectivity patterns for parallel growth. Second, connection probability decreased more rapidly with distance between neurons for parallel growth than for serial growth. Third, bidirectional connections were more numerous for parallel growth. Finally, we tested our predictions with C. elegans data. Together, this indicates that time windows for axon growth influence the topological and spatial properties of neuronal networks opening up the possibility to a posteriori estimate developmental mechanisms based on network properties of a developed network.
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Park HJ, Lee MW, Rhim H, Cha DI, Kang TW, Lim S, Song KD, Lim HK. Percutaneous ultrasonography-guided radiofrequency ablation of hepatocellular carcinomas: usefulness of image fusion with three-dimensional ultrasonography. Clin Radiol 2015; 70:387-94. [PMID: 25582889 DOI: 10.1016/j.crad.2014.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 11/25/2014] [Accepted: 12/03/2014] [Indexed: 12/14/2022]
Abstract
AIM To evaluate the usefulness of fusion imaging with real-time ultrasonography (US) and three-dimensional (3D) US for the guidance of radiofrequency ablation (RFA) of hepatocellular carcinomas (HCCs) 2-5 cm in diameter. MATERIALS AND METHODS This study was conducted as a retrospective cohort study. It was approved by the institutional review board and informed consent was waived. During percutaneous RFA of HCCs, targeting was performed under conventional fusion imaging guidance, whereas monitoring and controlling were conducted under fusion with 3D US guidance. Technical success, technique effectiveness, incidence of major complications, and local tumour progression rate were evaluated. According to tumour size (small: <3 cm versus medium: 3-5 cm), the roundness indexes of the ablation zones and local tumour progression rates were compared. RESULTS There were 29 small-sized HCCs (2.5 ± 0.3 cm) and 17 medium-sized HCCs (3.4 ± 0.5 cm). All RFA procedures were performed in a single RFA session. Both the technical success and technique effectiveness rates were 100%. One patient with medium-sized HCC developed a hepatic abscess (n = 1) as a major complication. The local tumour progression rate was 8.7% (4/46) with a mean follow-up period of 18.2 months. The roundness indexes of the ablation zone were not significantly different between small- and medium-sized HCCs, and the local tumour progression rates were also not significantly different between the two groups [3.4% (1/29) versus 17.6% (3/17); p = 0.135]. CONCLUSION Image fusion with real-time US and 3D US is useful for the guidance of percutaneous RFA for HCCs 2-5 cm in diameter.
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Simpson L, Eng J, Klassen T, Lim S, Louie D, Parappilly B, Sakakibara B, Zbogar D. Capturing step counts at slow walking speeds in older adults: Comparison of ankle and waist placement of measuring device. J Rehabil Med 2015; 47:830-5. [DOI: 10.2340/16501977-1993] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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212
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Aguilar M, Aisa D, Alpat B, Alvino A, Ambrosi G, Andeen K, Arruda L, Attig N, Azzarello P, Bachlechner A, Barao F, Barrau A, Barrin L, Bartoloni A, Basara L, Battarbee M, Battiston R, Bazo J, Becker U, Behlmann M, Beischer B, Berdugo J, Bertucci B, Bigongiari G, Bindi V, Bizzaglia S, Bizzarri M, Boella G, de Boer W, Bollweg K, Bonnivard V, Borgia B, Borsini S, Boschini MJ, Bourquin M, Burger J, Cadoux F, Cai XD, Capell M, Caroff S, Casaus J, Cascioli V, Castellini G, Cernuda I, Cervelli F, Chae MJ, Chang YH, Chen AI, Chen H, Cheng GM, Chen HS, Cheng L, Chikanian A, Chou HY, Choumilov E, Choutko V, Chung CH, Clark C, Clavero R, Coignet G, Consolandi C, Contin A, Corti C, Coste B, Crispoltoni M, Cui Z, Dai M, Delgado C, Della Torre S, Demirköz MB, Derome L, Di Falco S, Di Masso L, Dimiccoli F, Díaz C, von Doetinchem P, Donnini F, Du WJ, Duranti M, D'Urso D, Eline A, Eppling FJ, Eronen T, Fan YY, Farnesini L, Feng J, Fiandrini E, Fiasson A, Finch E, Fisher P, Galaktionov Y, Gallucci G, García B, García-López R, Gargiulo C, Gast H, Gebauer I, Gervasi M, Ghelfi A, Gillard W, Giovacchini F, Goglov P, Gong J, Goy C, Grabski V, Grandi D, Graziani M, Guandalini C, Guerri I, Guo KH, Habiby M, Haino S, Han KC, He ZH, Heil M, Hoffman J, Hsieh TH, Huang ZC, Huh C, Incagli M, Ionica M, Jang WY, Jinchi H, Kanishev K, Kim GN, Kim KS, Kirn T, Kossakowski R, Kounina O, Kounine A, Koutsenko V, Krafczyk MS, Kunz S, La Vacca G, Laudi E, Laurenti G, Lazzizzera I, Lebedev A, Lee HT, Lee SC, Leluc C, Li HL, Li JQ, Li Q, Li Q, Li TX, Li W, Li Y, Li ZH, Li ZY, Lim S, Lin CH, Lipari P, Lippert T, Liu D, Liu H, Lomtadze T, Lu MJ, Lu YS, Luebelsmeyer K, Luo F, Luo JZ, Lv SS, Majka R, Malinin A, Mañá C, Marín J, Martin T, Martínez G, Masi N, Maurin D, Menchaca-Rocha A, Meng Q, Mo DC, Morescalchi L, Mott P, Müller M, Ni JQ, Nikonov N, Nozzoli F, Nunes P, Obermeier A, Oliva A, Orcinha M, Palmonari F, Palomares C, Paniccia M, Papi A, Pauluzzi M, Pedreschi E, Pensotti S, Pereira R, Pilo F, Piluso A, Pizzolotto C, Plyaskin V, Pohl M, Poireau V, Postaci E, Putze A, Quadrani L, Qi XM, Räihä T, Rancoita PG, Rapin D, Ricol JS, Rodríguez I, Rosier-Lees S, Rozhkov A, Rozza D, Sagdeev R, Sandweiss J, Saouter P, Sbarra C, Schael S, Schmidt SM, Schuckardt D, Schulz von Dratzig A, Schwering G, Scolieri G, Seo ES, Shan BS, Shan YH, Shi JY, Shi XY, Shi YM, Siedenburg T, Son D, Spada F, Spinella F, Sun W, Sun WH, Tacconi M, Tang CP, Tang XW, Tang ZC, Tao L, Tescaro D, Ting SCC, Ting SM, Tomassetti N, Torsti J, Türkoğlu C, Urban T, Vagelli V, Valente E, Vannini C, Valtonen E, Vaurynovich S, Vecchi M, Velasco M, Vialle JP, Wang LQ, Wang QL, Wang RS, Wang X, Wang ZX, Weng ZL, Whitman K, Wienkenhöver J, Wu H, Xia X, Xie M, Xie S, Xiong RQ, Xin GM, Xu NS, Xu W, Yan Q, Yang J, Yang M, Ye QH, Yi H, Yu YJ, Yu ZQ, Zeissler S, Zhang JH, Zhang MT, Zhang XB, Zhang Z, Zheng ZM, Zhuang HL, Zhukov V, Zichichi A, Zimmermann N, Zuccon P, Zurbach C. Precision Measurement of the (e^{+}+e^{-}) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station. PHYSICAL REVIEW LETTERS 2014; 113:221102. [PMID: 25494065 DOI: 10.1103/physrevlett.113.221102] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Indexed: 06/04/2023]
Abstract
We present a measurement of the cosmic ray (e^{+}+e^{-}) flux in the range 0.5 GeV to 1 TeV based on the analysis of 10.6 million (e^{+}+e^{-}) events collected by AMS. The statistics and the resolution of AMS provide a precision measurement of the flux. The flux is smooth and reveals new and distinct information. Above 30.2 GeV, the flux can be described by a single power law with a spectral index γ=-3.170±0.008(stat+syst)±0.008(energy scale).
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Park HJ, Lee MW, Song KD, Cha DI, Rhim H, Kang TW, Lim S, Lim HK. Comparison of therapeutic efficacy and safety of radiofrequency ablation of hepatocellular carcinomas between internally cooled 15-G and 17-G single electrodes. Br J Radiol 2014; 87:20130534. [PMID: 24646182 DOI: 10.1259/bjr.20130534] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE To compare the ablation volume, local tumour progression rate and complication rate of radiofrequency ablation (RFA) for small hepatocellular carcinomas (HCCs) using 15-G and 17-G single electrodes. METHODS This retrospective study was approved by the institutional review board and informed consent was waived. We reviewed percutaneous RFA cases for HCCs using 15-G or 17-G electrodes without multiple overlapping ablations. A total of 36 pairs of HCCs matched according to tumour size and active tip length were included. We compared ablation volume and complication rate between the two electrode groups. Cumulative local tumour progression rates were estimated using the Kaplan–Meier method and compared using the log-rank test. RESULTS Tumour size and ablation time were not significantly different between the 15-G and 17-G groups (p50.661 and p50.793, respectively). However, ablation volume in the 15-G electrode group was larger than that in the 17-G group (14.465.4cm3 vs 8.762.5cm3; p,0.001). No statistical difference in complication rates between the two electrode groups was found. The 10- and 20-month local tumour progression rates were not significantly different between the two groups (2.8% and 5.6% vs 11.1% and 19.3%; p50.166). CONCLUSION Ablation volume by the 15-G electrode was larger than that by the 17-G electrode. However, local tumour progression rate and complication rate were not significantly different between the two electrode groups. ADVANCES IN KNOWLEDGE RFA of HCC using a 15-G electrode is useful to create larger ablation volumes than a 17-G electrode.
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Aguilar M, Aisa D, Alvino A, Ambrosi G, Andeen K, Arruda L, Attig N, Azzarello P, Bachlechner A, Barao F, Barrau A, Barrin L, Bartoloni A, Basara L, Battarbee M, Battiston R, Bazo J, Becker U, Behlmann M, Beischer B, Berdugo J, Bertucci B, Bigongiari G, Bindi V, Bizzaglia S, Bizzarri M, Boella G, de Boer W, Bollweg K, Bonnivard V, Borgia B, Borsini S, Boschini MJ, Bourquin M, Burger J, Cadoux F, Cai XD, Capell M, Caroff S, Casaus J, Cascioli V, Castellini G, Cernuda I, Cervelli F, Chae MJ, Chang YH, Chen AI, Chen H, Cheng GM, Chen HS, Cheng L, Chikanian A, Chou HY, Choumilov E, Choutko V, Chung CH, Clark C, Clavero R, Coignet G, Consolandi C, Contin A, Corti C, Coste B, Cui Z, Dai M, Delgado C, Della Torre S, Demirköz MB, Derome L, Di Falco S, Di Masso L, Dimiccoli F, Díaz C, von Doetinchem P, Du WJ, Duranti M, D'Urso D, Eline A, Eppling FJ, Eronen T, Fan YY, Farnesini L, Feng J, Fiandrini E, Fiasson A, Finch E, Fisher P, Galaktionov Y, Gallucci G, García B, García-López R, Gast H, Gebauer I, Gervasi M, Ghelfi A, Gillard W, Giovacchini F, Goglov P, Gong J, Goy C, Grabski V, Grandi D, Graziani M, Guandalini C, Guerri I, Guo KH, Habiby M, Haino S, Han KC, He ZH, Heil M, Hoffman J, Hsieh TH, Huang ZC, Huh C, Incagli M, Ionica M, Jang WY, Jinchi H, Kanishev K, Kim GN, Kim KS, Kirn T, Kossakowski R, Kounina O, Kounine A, Koutsenko V, Krafczyk MS, Kunz S, La Vacca G, Laudi E, Laurenti G, Lazzizzera I, Lebedev A, Lee HT, Lee SC, Leluc C, Li HL, Li JQ, Li Q, Li Q, Li TX, Li W, Li Y, Li ZH, Li ZY, Lim S, Lin CH, Lipari P, Lippert T, Liu D, Liu H, Lomtadze T, Lu MJ, Lu YS, Luebelsmeyer K, Luo F, Luo JZ, Lv SS, Majka R, Malinin A, Mañá C, Marín J, Martin T, Martínez G, Masi N, Maurin D, Menchaca-Rocha A, Meng Q, Mo DC, Morescalchi L, Mott P, Müller M, Ni JQ, Nikonov N, Nozzoli F, Nunes P, Obermeier A, Oliva A, Orcinha M, Palmonari F, Palomares C, Paniccia M, Papi A, Pedreschi E, Pensotti S, Pereira R, Pilo F, Piluso A, Pizzolotto C, Plyaskin V, Pohl M, Poireau V, Postaci E, Putze A, Quadrani L, Qi XM, Rancoita PG, Rapin D, Ricol JS, Rodríguez I, Rosier-Lees S, Rozhkov A, Rozza D, Sagdeev R, Sandweiss J, Saouter P, Sbarra C, Schael S, Schmidt SM, Schuckardt D, Schulz von Dratzig A, Schwering G, Scolieri G, Seo ES, Shan BS, Shan YH, Shi JY, Shi XY, Shi YM, Siedenburg T, Son D, Spada F, Spinella F, Sun W, Sun WH, Tacconi M, Tang CP, Tang XW, Tang ZC, Tao L, Tescaro D, Ting SCC, Ting SM, Tomassetti N, Torsti J, Türkoğlu C, Urban T, Vagelli V, Valente E, Vannini C, Valtonen E, Vaurynovich S, Vecchi M, Velasco M, Vialle JP, Wang LQ, Wang QL, Wang RS, Wang X, Wang ZX, Weng ZL, Whitman K, Wienkenhöver J, Wu H, Xia X, Xie M, Xie S, Xiong RQ, Xin GM, Xu NS, Xu W, Yan Q, Yang J, Yang M, Ye QH, Yi H, Yu YJ, Yu ZQ, Zeissler S, Zhang JH, Zhang MT, Zhang XB, Zhang Z, Zheng ZM, Zhuang HL, Zhukov V, Zichichi A, Zimmermann N, Zuccon P, Zurbach C. Electron and positron fluxes in primary cosmic rays measured with the alpha magnetic spectrometer on the international space station. PHYSICAL REVIEW LETTERS 2014; 113:121102. [PMID: 25279617 DOI: 10.1103/physrevlett.113.121102] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Indexed: 06/03/2023]
Abstract
Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to 500 GeV are presented. The electron flux and the positron flux each require a description beyond a single power-law spectrum. Both the electron flux and the positron flux change their behavior at ∼30 GeV but the fluxes are significantly different in their magnitude and energy dependence. Between 20 and 200 GeV the positron spectral index is significantly harder than the electron spectral index. The determination of the differing behavior of the spectral indices versus energy is a new observation and provides important information on the origins of cosmic-ray electrons and positrons.
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Accardo L, Aguilar M, Aisa D, Alpat B, Alvino A, Ambrosi G, Andeen K, Arruda L, Attig N, Azzarello P, Bachlechner A, Barao F, Barrau A, Barrin L, Bartoloni A, Basara L, Battarbee M, Battiston R, Bazo J, Becker U, Behlmann M, Beischer B, Berdugo J, Bertucci B, Bigongiari G, Bindi V, Bizzaglia S, Bizzarri M, Boella G, de Boer W, Bollweg K, Bonnivard V, Borgia B, Borsini S, Boschini MJ, Bourquin M, Burger J, Cadoux F, Cai XD, Capell M, Caroff S, Carosi G, Casaus J, Cascioli V, Castellini G, Cernuda I, Cerreta D, Cervelli F, Chae MJ, Chang YH, Chen AI, Chen H, Cheng GM, Chen HS, Cheng L, Chikanian A, Chou HY, Choumilov E, Choutko V, Chung CH, Cindolo F, Clark C, Clavero R, Coignet G, Consolandi C, Contin A, Corti C, Coste B, Cui Z, Dai M, Delgado C, Della Torre S, Demirköz MB, Derome L, Di Falco S, Di Masso L, Dimiccoli F, Díaz C, von Doetinchem P, Du WJ, Duranti M, D'Urso D, Eline A, Eppling FJ, Eronen T, Fan YY, Farnesini L, Feng J, Fiandrini E, Fiasson A, Finch E, Fisher P, Galaktionov Y, Gallucci G, García B, García-López R, Gast H, Gebauer I, Gervasi M, Ghelfi A, Gillard W, Giovacchini F, Goglov P, Gong J, Goy C, Grabski V, Grandi D, Graziani M, Guandalini C, Guerri I, Guo KH, Haas D, Habiby M, Haino S, Han KC, He ZH, Heil M, Henning R, Hoffman J, Hsieh TH, Huang ZC, Huh C, Incagli M, Ionica M, Jang WY, Jinchi H, Kanishev K, Kim GN, Kim KS, Kirn T, Kossakowski R, Kounina O, Kounine A, Koutsenko V, Krafczyk MS, Kunz S, La Vacca G, Laudi E, Laurenti G, Lazzizzera I, Lebedev A, Lee HT, Lee SC, Leluc C, Levi G, Li HL, Li JQ, Li Q, Li Q, Li TX, Li W, Li Y, Li ZH, Li ZY, Lim S, Lin CH, Lipari P, Lippert T, Liu D, Liu H, Lolli M, Lomtadze T, Lu MJ, Lu YS, Luebelsmeyer K, Luo F, Luo JZ, Lv SS, Majka R, Malinin A, Mañá C, Marín J, Martin T, Martínez G, Masi N, Massera F, Maurin D, Menchaca-Rocha A, Meng Q, Mo DC, Monreal B, Morescalchi L, Mott P, Müller M, Ni JQ, Nikonov N, Nozzoli F, Nunes P, Obermeier A, Oliva A, Orcinha M, Palmonari F, Palomares C, Paniccia M, Papi A, Pauluzzi M, Pedreschi E, Pensotti S, Pereira R, Pilastrini R, Pilo F, Piluso A, Pizzolotto C, Plyaskin V, Pohl M, Poireau V, Postaci E, Putze A, Quadrani L, Qi XM, Rancoita PG, Rapin D, Ricol JS, Rodríguez I, Rosier-Lees S, Rossi L, Rozhkov A, Rozza D, Rybka G, Sagdeev R, Sandweiss J, Saouter P, Sbarra C, Schael S, Schmidt SM, Schuckardt D, Schulz von Dratzig A, Schwering G, Scolieri G, Seo ES, Shan BS, Shan YH, Shi JY, Shi XY, Shi YM, Siedenburg T, Son D, Spada F, Spinella F, Sun W, Sun WH, Tacconi M, Tang CP, Tang XW, Tang ZC, Tao L, Tescaro D, Ting SCC, Ting SM, Tomassetti N, Torsti J, Türkoğlu C, Urban T, Vagelli V, Valente E, Vannini C, Valtonen E, Vaurynovich S, Vecchi M, Velasco M, Vialle JP, Vitale V, Volpini G, Wang LQ, Wang QL, Wang RS, Wang X, Wang ZX, Weng ZL, Whitman K, Wienkenhöver J, Wu H, Wu KY, Xia X, Xie M, Xie S, Xiong RQ, Xin GM, Xu NS, Xu W, Yan Q, Yang J, Yang M, Ye QH, Yi H, Yu YJ, Yu ZQ, Zeissler S, Zhang JH, Zhang MT, Zhang XB, Zhang Z, Zheng ZM, Zhou F, Zhuang HL, Zhukov V, Zichichi A, Zimmermann N, Zuccon P, Zurbach C. High statistics measurement of the positron fraction in primary cosmic rays of 0.5-500 GeV with the alpha magnetic spectrometer on the international space station. PHYSICAL REVIEW LETTERS 2014; 113:121101. [PMID: 25279616 DOI: 10.1103/physrevlett.113.121101] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Indexed: 06/03/2023]
Abstract
A precision measurement by AMS of the positron fraction in primary cosmic rays in the energy range from 0.5 to 500 GeV based on 10.9 million positron and electron events is presented. This measurement extends the energy range of our previous observation and increases its precision. The new results show, for the first time, that above ∼200 GeV the positron fraction no longer exhibits an increase with energy.
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Lim S, Lee YH, Igori D, Zhao F, Yoo RH, Lee SH, Baek IY, Moon JS. First Report of Peanut mottle virus Infecting Soybean in South Korea. PLANT DISEASE 2014; 98:1285. [PMID: 30699670 DOI: 10.1094/pdis-04-14-0356-pdn] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In July 2013, soybean (Glycine max) plants at the research field in Daegu, South Korea, showed virus-like symptoms, such as mosaic, mottle, yellowing, and stunting. Overall, there were approximately 1% of soybean plants that showed these symptoms. Sixteen soybean samples were collected based on visual symptoms and subjected to laboratory characterization. Total RNA was extracted from each sample with the Tri Reagent (Molecular Research Center, Cincinnati, OH) and cDNA was synthesized using random N25 primer with RevertAid Reverse Transcriptase (Thermo Scientific, Waltham, MA), according to the manufacturers' instructions. All samples were tested by PCR with Prime Taq Premix (2X) (GeNet Bio, Daejeon, Korea) and primer sets specific to Soybean mosaic virus (SMV; 5'-CATATCAGTTTGTTGGGCA-3' and 5'-TGCCTATACCCTCAACAT-3'), Peanut stunt virus (PSV; 5'-TGACCGCGTGCCAGTAGGAT-3' and 5'-AGGTDGCTTTCTWTTGRATTTA-3'), Soybean yellow mottle mosaic virus (SYMMV; 5'-CAACCCTCAGCCACATTCAACTAT-3' and 5'-TCTAACCACCCCACCCGAAGGATT-3'), and Soybean yellow common mosaic virus (SYCMV; 5'-TTGGCTGAGAGGAGTGGCTT-3' and 5'-TGCGGTCGTGTAGTCAGTG-3'). Among 16 samples tested, five were positive for SMV and two for SYMMV. Three samples were found infected by both SMV and SYMMV and four by both SMV and PSV. Since two of the symptomatic samples were not infected by viruses described above, a pair of primers specific to Peanut mottle virus (PeMoV; 5'-GCTGTGAATTGTTGTTGAGAA-3' and 5'-ACAATGATGAAGTTCGTTAC-3') was tested (1). All 16 samples were subjected to RT-PCR with primers specific to PeMoV. Four were found positive for PeMoV. Two of them were already found infected with SYMMV. In order to identify the complete nucleotide sequences of PeMoV coat protein (CP), another primer set (5'-TGAGCAGGAAAGAATTGTTTC-3' and 5'-GGAAGCGATATACACACCAAC-3') was used. RT-PCR product was cloned into RBC TA Cloning Vector (RBC Bioscience, Taipei, Taiwan) and the nucleotide sequence of the insert was determined by Macrogen (Seoul, Korea). CP gene of the PeMoV (GenBank Accession No. KJ664838) showed the highest nucleotide sequence identity with PeMoV isolate Habin (KF977830; 99% identity), and the highest amino acid identity with GenBank Accession No. ABI97347 (100% identity). In order to fulfill Koch's postulates, several G. max cv. Williams 82 were inoculated with the extracts of PeMoV-infected leaf tissue. At 14 days post-inoculation, plants showed systemic mottle symptoms. These symptomatic plants were subjected to RT-PCR, and the nucleotide sequences of the PCR product were found identical to that of the virus in the inoculum. To our knowledge, this is the first report of soybean-infecting PeMoV, a member of the genus Potyvirus in the family Potyviridae, in South Korea. Reference: (1) R. G. Dietzgen et al. Plant Dis. 85:989, 2001.
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Kang TW, Lee MW, Hye MJ, Song KD, Lim S, Rhim H, Lim HK, Cha DI. Percutaneous radiofrequency ablation of hepatic tumours: factors affecting technical failure of artificial ascites formation using an angiosheath. Clin Radiol 2014; 69:1249-58. [PMID: 25149600 DOI: 10.1016/j.crad.2014.07.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 07/08/2014] [Accepted: 07/10/2014] [Indexed: 01/15/2023]
Abstract
AIM To evaluate the technical feasibility of artificial ascites formation using an angiosheath before percutaneous radiofrequency ablation (RFA) for hepatic tumours and to determine predictive factors affecting the technical failure of artificial ascites formation. MATERIALS AND METHODS This retrospective study was approved by the institutional review board. One hundred and thirteen patients underwent percutaneous RFA of hepatic tumours after trying to make artificial ascites using an angiosheath to avoid collateral thermal damage. The technical success rate of making artificial ascites using an angiosheath and conversion rate to other techniques after initial failure of making artificial ascites were evaluated. The technical success rate for RFA was assessed. In addition, potential factors associated with technical failure including previous history of transcatheter arterial chemoembolization (TACE) or RFA, type of abdominal surgery, and adjacent perihepatic structures were reviewed. Predictive factors for the technical failure of artificial ascites formation were analysed using multivariate analysis. RESULTS The technical success rates of artificial ascites formation by angiosheath and that of RFA were 84.1% (95/113) and 97.3% (110/113), respectively. The conversion rate to other techniques after the failure of artificial ascites formation using an angiosheath was 15.9% (18/113). Previous hepatic resection was the sole independent predictive factor affecting the technical failure of artificial ascites formation (p<0.001, odds ratio = 29.03, 95% confidence interval: 4.56-184.69). CONCLUSION Making artificial ascites for RFA of hepatic tumours using an angiosheath was technically feasible in most cases. However, history of hepatic resection was a significant predictive factor affecting the technical failure of artificial ascites formation.
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Kuo L, Yorke E, Lim S, Mechalakos J, Rimner A. SU-F-BRD-15: The Impact of Dose Calculation Algorithm and Hounsfield Units Conversion Tables On Plan Dosimetry for Lung SBRT. Med Phys 2014. [DOI: 10.1118/1.4889069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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219
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Tang G, Lim S, LoSasso T. SU-E-T-440: Elliptical Source Model for IMRT and VMAT with Complex Modulation. Med Phys 2014. [DOI: 10.1118/1.4888773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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220
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Lim S, Lovelock D, Yorke E, Kuo L, LoSasso T. SU-E-T-496: A Study of Two Commercial Dose Calculation Algorithms in Low Density Phantom. Med Phys 2014. [DOI: 10.1118/1.4888829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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221
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LoSasso T, Lim S, Tang G, Chan M, Li J, Obcemea C, Song Y, Ma R, Yang G, Xiong W, Huang D, Burman C, Mechalakos J, Hunt M. SU-E-T-52: Beam Data Comparison for 20 Linear Accelerators in One Network. Med Phys 2014. [DOI: 10.1118/1.4888382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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222
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Driscoll T, Jacklyn G, Orchard J, Passmore E, Vos T, Freedman G, Lim S, Punnett L. The global burden of occupationally related low back pain: estimates from the Global Burden of Disease 2010 study. Ann Rheum Dis 2014; 73:975-81. [PMID: 24665117 DOI: 10.1136/annrheumdis-2013-204631] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES The study was part of the Global Burden of Disease 2010 study and aimed to quantify the burden arising from low back pain (LBP) due to occupational exposure to ergonomic risk factors. METHODS Exposure prevalence was based on occupation distribution; estimates of relative risk came from a meta-analysis of relevant published literature. The work-related burden was estimated as disability-adjusted life years (DALYs). Estimates were made for each of 21 world regions and 187 countries, separately for 1990 and 2010 using consistent methods. RESULTS Worldwide, LBP arising from ergonomic exposures at work was estimated to cause 21.7 million DALYs in 2010. The overall population attributable fraction was 26%, varying considerably with age, sex and region. 62% of LBP DALYs were in males-the largest numbers were in persons aged 35-55 years. The highest relative risk (3.7) was in the agricultural sector. The largest number of DALYs occurred in East Asia and South Asia, but on a per capita basis the biggest burden was in Oceania. There was a 22% increase in overall LBP DALYs arising from occupational exposures between 1990 and 2010 due to population growth; rates dropped by 14% over the same period. CONCLUSIONS LBP arising from ergonomic exposures at work is an important cause of disability. There is a need for improved information on exposure distributions and relative risks, particularly in developing countries.
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Min J, Lee M, Rhim H, Cha D, Lim S, Choi SY, Lim H. Local tumour progression after loco-regional therapy of hepatocellular carcinomas: Value of fusion imaging-guided radiofrequency ablation. Clin Radiol 2014; 69:286-93. [DOI: 10.1016/j.crad.2013.10.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 10/17/2013] [Accepted: 10/21/2013] [Indexed: 01/20/2023]
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Lim S, Ho V, Lee S, Yoo D, Kim J. Determination of Optimal Location and Capacity of Detention Facilities. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.proeng.2014.02.115] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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225
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Chae DH, Drenkard CM, Lewis TT, Lim S. Racial discrimination and disease damage among African American women with systemic lupus erythematosus. Arthritis Res Ther 2014. [PMCID: PMC4179513 DOI: 10.1186/ar4629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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McDougall JA, Helmick CG, Lim S, Gordon C, Ferucci ED. Impact of provider specialty on the diagnosis and management of systemic lupus erythematosus in the American Indian/Alaska Native population. Arthritis Res Ther 2014. [PMCID: PMC4179511 DOI: 10.1186/ar4628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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227
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Lim S, Han CE, Uhlhaas PJ, Kaiser M. Preferential detachment during human brain development: age- and sex-specific structural connectivity in diffusion tensor imaging (DTI) data. ACTA ACUST UNITED AC 2013; 25:1477-89. [PMID: 24343892 PMCID: PMC4428296 DOI: 10.1093/cercor/bht333] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Human brain maturation is characterized by the prolonged development of structural and functional properties of large-scale networks that extends into adulthood. However, it is not clearly understood which features change and which remain stable over time. Here, we examined structural connectivity based on diffusion tensor imaging (DTI) in 121 participants between 4 and 40 years of age. DTI data were analyzed for small-world parameters, modularity, and the number of fiber tracts at the level of streamlines. First, our findings showed that the number of fiber tracts, small-world topology, and modular organization remained largely stable despite a substantial overall decrease in the number of streamlines with age. Second, this decrease mainly affected fiber tracts that had a large number of streamlines, were short, within modules and within hemispheres; such connections were affected significantly more often than would be expected given their number of occurrences in the network. Third, streamline loss occurred earlier in females than in males. In summary, our findings suggest that core properties of structural brain connectivity, such as the small-world and modular organization, remain stable during brain maturation by focusing streamline loss to specific types of fiber tracts.
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Park J, Lim S, Chon H, Hong M, Kang B, Jung M, Rha S, Ahn JB, Chung H, Kim H. Clinicopathologic Features Predicting HER2 Overexpression in Gastric Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt444.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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229
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Devries KM, Mak JYT, García-Moreno C, Petzold M, Child JC, Falder G, Lim S, Bacchus LJ, Engell RE, Rosenfeld L, Pallitto C, Vos T, Abrahams N, Watts CH. The Global Prevalence of Intimate Partner Violence Against Women. Science 2013; 340:1527-8. [DOI: 10.1126/science.1240937] [Citation(s) in RCA: 840] [Impact Index Per Article: 76.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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230
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Lim S. SU-E-J-220: Respiration Simulating Phantom for Verifying Four-Dimensional Radiation Therapy. Med Phys 2013. [DOI: 10.1118/1.4814432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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231
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Lim S, Tang G, LoSasso T. SU-E-T-71: An Investigation of Measurement Techniques for Small Field Dosimetry Using Commercially Available Detectors. Med Phys 2013. [DOI: 10.1118/1.4814506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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232
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Lim S, Tang G, LoSasso T. SU-E-T-33: A Comparative Study of Commissioning Data of Two TrueBeam LINACs with TrueBeam Representative Beam Data. Med Phys 2013. [DOI: 10.1118/1.4814468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Abstract
Abstract
An experimental study of the development of orientation of mixed fiber and flake polymer compounds in polymer processing operation including extrusion and molding is discussed. Aramid fiber and talc and mica flakes are studied. The orientation of the particles is determined using wide angle x-ray diffraction. It is found that mixed particle systems lead to lower orientation of both fibers and flakes. The fibers tend to orient in the primary machine direction, while the flakes tend to orient perpendicular to the fibers. This is distinct from fiber compounds and flake compounds where fibers orient in the plane of the machine and transverse directions and flakes orient parallel to machine surfaces.
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Lim S, White JL. Development of Phase Morphology of a Polyethylene-Polyamide 6-Blend in a Modular Co-rotating Twin Screw Extruder. INT POLYM PROC 2013. [DOI: 10.3139/217.930119] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
A basic study of blending two different polymers (polyethylene and polyamide 6) in a modular co-rotating twin screw extruder is presented. The development of phase morphology was observed along the axis of the modular screw. Five different modular screw designs are considered. We first look at a machine containing all right-handed screw elements. We then consider a machine with all right-handed elements plus a single left-handed screw element. The study then turns to machines with combined screw and kneading disc elements. The kneading discs play a key role in both melting polymers and in enhancing dispersive mixing. Increasing the number of kneading disc blocks gives enhanced dispersion.
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Lim S, White JL. Flow Mechanisms, Material Distributions and Phase Morphology Development in a Modular Intermeshing Counter-Rotating Twin Screw Extruder of Leistritz Design. INT POLYM PROC 2013. [DOI: 10.3139/217.940033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
An experimental study is presented of the mixing of polyamide-6 and polyethylene in a Leistritz modular counter-rotating twin screw extruder. Seven different screw configurations were investigated and the material distributions and phase morphology developments along the axis of the screw were characterized. The behavior of different modular elements was determined including screw flights of varying thickness, Kiesskalt compression elements and shearing elements.
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Kang TW, Kim SH, Park HJ, Lim S, Jang KM, Choi D, Lee SJ. Differentiating xanthogranulomatous cholecystitis from wall-thickening type of gallbladder cancer: added value of diffusion-weighted MRI. Clin Radiol 2013; 68:992-1001. [PMID: 23622795 DOI: 10.1016/j.crad.2013.03.022] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/05/2013] [Accepted: 03/06/2013] [Indexed: 12/21/2022]
Abstract
AIM To evaluate the benefit of diffusion-weighted imaging (DWI) in differentiating xanthogranulomatous cholecystitis from the wall-thickening type of gallbladder cancer. MATERIALS AND METHODS This retrospective study was approved by the institutional review board. Fourteen patients with xanthogranulomatous cholecystitis and 19 patients with the wall-thickening type of gallbladder cancer were included. Qualitative (visual diffusion restriction compared to liver parenchyma) and quantitative [apparent diffusion coefficient (ADC)] analyses were performed. Conventional MRI findings including dynamic enhancement pattern between the two groups were also analysed. Two observers independently reviewed conventional magnetic resonance imaging (MRI) images and subsequently reviewed combined conventional MRI and DWI images. Pairwise comparison of the receiver operating characteristic (ROC) curves was used to compare diagnostic performances. RESULTS In conventional MRI findings, xanthogranulomatous cholecystitis showed significant continuity of enhancing mucosal line [79% (11/14) versus 26% (5/19), p = 0.003] and intramural T2-high signal intensity [64% (9/14) versus 21% (4/19), p = 0.012] compared to the wall-thickening type of gallbladder cancer. The enhancement pattern of gallbladder cancer compared to liver parenchyma showed earlier onset than that of xanthogranulomatous cholecystitis (p = 0.001). Diffusion restriction was more frequently seen in the wall-thickening type of gallbladder cancer (68%, 13/19) than in xanthogranulomatous cholecystitis (7%, 1/14; p < 0.001). The mean ADC value of xanthogranulomatous cholecystitis was higher than that of the wall-thickening type of gallbladder cancer with statistical significance (1.637 × 10(-3) mm(2)/s versus 1.076 × 10(-3) mm(2)/s, p = 0.005). Diagnostic performance [area under ROC curve (Az)] of both observers improved significantly after additional review of DWI; Az improved from 0.737 to 0.930 (p = 0.027) for observer 1 and from 0.675 to 0.938 (p = 0.008) for observer 2. CONCLUSION Addition of DWI to conventional MRI improves discrimination between xanthogranulomatous cholecystitis and the wall-thickening type of gallbladder cancer.
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Liu JJ, Toy W, Wong M, Tan C, Tavintharan S, Wong M, Sum C, Lim S. Elevated Undercarboxylated and Reduced Carboxylated Osteocalcin are Associated with Metabolic Syndrome in Middle Age Asian Females. Exp Clin Endocrinol Diabetes 2013; 121:329-33. [DOI: 10.1055/s-0033-1334883] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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238
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Altman M, Bergerot C, Thibault H, Aussoleil A, Skuldadt Davidsen E, Barthelet M, Derumeaux GA, Grapsa J, Zimbarra Cabrita I, Afilalo J, Paschou S, Dawson D, Durighel G, O'regan D, Howard L, Gibbs J, Nihoyannopoulos P, Morenate Navio M, Mesa Rubio M, Ortega MD, Ruiz Ortiz M, Castillo Bernal F, Del Pino CL, Toledano F, Alvarez-Ossorio MP, Ojeda Pineda S, Lezo Cruz-Conde JSD, Jasaityte R, Claus P, Teske A, Herbots L, Verheyden B, Rademakers F, D'hooge J, Tocchetti CG, Coppola C, Rea D, Quintavalle C, Guarino L, Castaldo N, De Lorenzo C, Condorelli G, Arra C, Maurea N, Voilliot D, Huttin O, Camara Y, Djaballah W, Carillo S, Zinzius P, Sellal J, Angioi M, Juilliere Y, Selton-Suty C, Dobrowolski P, Klisiewicz A, Florczak E, Prejbisz A, Szwench E, Rybicka J, Januszewicz A, Hoffman P, Jurado Roman A, De Dios Perez S, De Nicolas JMM, Diaz Anton B, Rubio Alonso B, Martin Asenjo R, Mayordomo Gomez S, Villagraz Tecedor L, Blazquez L, De Meneses RT, Bernard A, Hernandez AI, Reynaud A, Lerclercq C, Daubert J, Donal E, Arjan Singh R, Sivarani S, Lim S, Azman W, Almeida M, Cardim N, Fonseca V, Carmelo V, Santos S, Santos T, Toste J, Kosmala W, Orda A, Karolko B, Mysiak A, Przewlocka-Kosmala M, Farsalinos K, Tsiapras D, Kyrzopoulos S, Avramidou E, Vassilopoulou D, Voudris V, Hayrapetyan H, Adamyan K, Jurado Roman A, De Dios Perez S, Rubio Alonso B, De Nicolas JMM, Diaz Anton B, Martin Asenjo R, Montero Cabezas J, Granda Nistal C, Garcia Aranda B, Sanchez Sanchez V, Sestito A, Lamendola P, Di Franco A, Lauria C, Lanza G, Kukucka M, Unbehaun A, Buz S, Mladenow A, Kuppe H, Pasic M, Habazettl H, Gemma D, Montoro Lopez N, De Celix MGR, Lopez Fernandez T, De Torres Alba F, Del Valle DI, Ramirez U, Mesa J, Moreno Yanguela M, Lopez Sendon J, Eveborn GW, Schirmer H, Lunde P, Heggelund G, Rasmussen K, Wang Z, Lasota B, Mizia-Stec K, Mizia M, Chmiel A, Adamczyk T, Chudek J, Gasior Z, Venkatesh A, Johnson J, Sahlen A, Brodin L, Winter R, Shahgaldi K, Manouras A, Valbuena S, Iniesta A, Lopez T, De Torres F, Salinas P, Garcia S, Ramirez U, Mesa J, Moreno M, Lopez-Sendon J, Lebid I, Kobets T, Kuzmenko T, Katsanos S, Yiu K, Clavel M, Nina Ajmone N, Van Der Kley F, Rodes Cabau J, Schalij M, Bax J, Pibarot P, Delgado V, Fusini L, Tamborini G, Muratori M, Gripari P, Marsan N, Cefalu' C, Ewe S, Maffessanti F, Delgado V, Pepi M, Hasselberg N, Haugaa K, Petri H, Berge K, Leren T, Bundgaard H, Edvardsen T, Ancona R, Comenale Pinto S, Caso P, Coppola M, Rapisarda O, Cavallaro C, Vecchione F, D'onofrio A, Calabro' R, Rimbas R, Mihaila S, Enescu O, Patrascu N, Dragoi R, Rimbas M, Pop C, Vinereanu D, Gustafsson S, Morner S, Gronlund C, Suhr O, Lindqvist P, Di Bella G, Zito C, Minutoli F, Madaffari A, Cusma Piccione M, Mazzeo A, Massimo R, Pasquale M, Vita G, Carerj S, Rangel I, Goncalves A, Sousa C, Correia A, Martins E, Silva-Cardoso J, Macedo F, Maciel M, Pfeiffer B, Rigopoulos A, Seggewiss H, Alvarez Fuente M, Sainz Costa T, Medrano C, Navarro M, Blazquez Gamero D, Ramos J, Mellado M, De Jose M, Munoz M, Maroto E, Gargani L, Gosciniak P, Pratali L, Agoston G, Bruni C, Guiducci S, Matucci Cerinic M, Varga A, Sicari R, Picano E, Yiu K, Zhao C, Mei M, Yeung C, Siu C, Tse H, Florescu M, Enescu O, Magda L, Mincu R, Vinereanu D, Daha I, Stanescu CM, Chirila L, Baicus C, Vlase A, Dan G, Montoro Lopez M, Florez Gomez R, Alonso Ladreda A, Itziar Soto C, Rios Blanco J, Gemma D, De Torres Alba F, Moreno Yanguela M, Lopez Sendon J, Guzman Martinez G, Lichodziejewska B, Kurnicka K, Goliszek S, Kostrubiec M, Dzikowska-Diduch O, Ciurzynski M, Labyk A, Krupa M, Palczewski P, Pruszczyk P, De Sousa CC, Rangel I, Correia A, Martins E, Vigario A, Pinho T, Silva Cardoso J, Goncalves A, Macedo F, Maciel M, Park SJ, Song JE, Lee YJ, Ha MR, Chang SA, Choi JO, Lee SC, Park S, Oh J, Van De Bruaene A, De Meester P, Buys R, Vanhees L, Delcroix M, Voigt J, Budts W, Blundo A, Buccheri S, Monte IP, Leggio S, Tamburino C, Sotaquira M, Fusini L, Maffessanti F, Pepi M, Lang R, Caiani E, Floria M, De Roy L, Xhaet O, Blommaert D, Jamart J, Gerard M, Deceuninck O, Marchandise B, Seldrum S, Schroeder E, Unsworth B, Sohaib S, Kulwant-Kaur K, Malcolme-Lawes L, Kanagaratnam P, Malik I, Ren B, Mulder H, Haak A, Van Stralen M, Szili-Torok T, Pluim J, Geleijnse M, Bosch J, Baglini R, Amaducci A, D'ancona G, Van Den Oord S, Akkus Z, Bosch J, Ten Kate G, Renaud G, Sijbrands E, De Jong N, Van Der Lugt A, Van Der Steen A, Schinkel A, Bjallmark A, Larsson M, Grishenkov D, Brodin LA, Brismar T, Paradossi G, Sveen KA, Nerdrum T, Hanssen K, Dahl-Jorgensen K, Steine K, Cimino S, Pedrizzetti G, Tonti G, Canali E, Petronilli V, Cicogna F, Arcari L, De Luca L, Iacoboni C, Agati L, Abdel Moneim SS, Eifert Rain S, Bernier M, Bhat G, Hagen M, Bott-Kitslaar D, Castello R, Wilansky S, Pellikka P, Mulvagh S, Delithanasis I, Celutkiene J, Kenny C, Monaghan M, Park W, Hong G, Son J, Lee S, Kim U, Park J, Shin D, Kim Y, Toutouzas K, Drakopoulou M, Aggeli C, Felekos I, Nikolaou C, Synetos A, Stathogiannis K, Tsiamis E, Siores E, Stefanadis C, Plicht B, Kahlert P, Grave T, Buck T, Konorza T, Gursoy M, Gokdeniz T, Astarcioglu M, Bayram Z, Cakal B, Karakoyun S, Kalcik M, Acar R, Kahveci G, Ozkan M, Maffessanti F, Tamborini G, Tsang W, Weinert L, Gripari P, Fusini L, Muratori M, Caiani E, Lang R, Pepi M, Yurdakul S, Avci B, Sahin S, Dilekci B, Aytekin S, Ancona R, Comenale Pinto S, Caso P, Arenga F, Coppola M, Rapisarda O, Calabro' R, Hascoet S, Martin R, Dulac Y, Peyre M, Benzouid C, Hadeed K, Acar P, Celutkiene J, Zakarkaite D, Skorniakov V, Zvironaite V, Grabauskiene V, Burca J, Ciparyte L, Laucevicius A, Di Salvo G, Rea A, D'aiello A, Del Gaizo F, Pergola V, D'andrea A, Caso P, Pacileo G, Calabro R, Russo M, Dedobbeleer C, Hadefi A, Naeije R, Unger P, Mornos C, Cozma D, Ionac A, Mornos A, Valcovici M, Pescariu S, Petrescu L, Hu K, Liu D, Niemann M, Herrmann S, Cikes M, Stoerk S, Knop S, Ertl G, Bijnens B, Weidemann F, De Knegt M, Biering-Sorensen T, Sogaard P, Sivertsen J, Jensen J, Mogelvang R, Dedobbeleer C, Hadefi A, Unger P, Naeije R, Lam W, Tang M, Chan K, Yang Y, Fang F, Sun J, Yu C, Lam Y, Panoulas V, Sulemane S, Bratsas A, Konstantinou K, Nihoyannopoulos P, Cimino S, Canali E, Petronilli V, Cicogna F, Arcari L, De Luca L, Francone M, Iacoboni C, Agati L, Schau T, Seifert M, Ridjab D, Schoep M, Gottwald M, Neuss M, Meyhoefer J, Zaenker M, Butter C, Tarr A, Stoebe S, Pfeiffer D, Hagendorff A, Maret E, Ahlander BM, Bjorklund PG, Engvall J, Staskiewicz G, Czekajska-Chehab E, Adamczyk P, Siek E, Przybylski P, Maciejewski R, Drop A, Jimenez Rubio C, Isasti Aizpurua G, Miralles Ibarra J, Al-Mallah M, Somg T, Alam S, Chattahi J, Zweig B, Dhanalakota K, Boedeker S, Ananthasubramaniam K, Park C, March K, Jones S, Mayet J, Tillin T, Chaturvedi N, Hughes A, Hamodraka E, Kallistratos E, Karamanou A, Tsoukas T, Mavropoulos D, Kouremenos N, Zaharopoulou I, Nikolaidis N, Kremastinos D, Manolis A, Loboz-Rudnicka M, Jaroch J, Bociaga Z, Kruszynska E, Ciecierzynska B, Dziuba M, Dudek K, Uchmanowicz I, Loboz-Grudzien K, Silva D, Magalhaes A, Jorge C, Cortez-Dias N, Carrilho-Ferreira P, Silva Marques J, Portela I, Pascoa C, Nunes Diogo A, Brito D, Roosens B, Bala G, Droogmans S, Hostens J, Somja J, Delvenne E, Schiettecatte J, Lahoutte T, Van Camp G, Cosyns B. Poster Session: Right ventricular systolic function. Eur Heart J Cardiovasc Imaging 2012. [DOI: 10.1093/ehjci/jes268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bosch P, van Luijtelaar G, Groetelaers L, van den Noort M, Lim S, Egger J, Coenen A. The Munich Parasomnia Screening in psychiatry. SOMNOLOGIE 2012. [DOI: 10.1007/s11818-012-0587-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Melamed P, Savulescu D, Lim S, Wijeweera A, Luo Z, Luo M, Pnueli L. Gonadotrophin-releasing hormone signalling downstream of calmodulin. J Neuroendocrinol 2012; 24:1463-75. [PMID: 22775470 DOI: 10.1111/j.1365-2826.2012.02359.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 06/24/2012] [Accepted: 07/03/2012] [Indexed: 01/26/2023]
Abstract
Gonadotrophin-releasing hormone (GnRH) regulates reproduction via binding a G-protein coupled receptor on the surface of the gonadotroph, through which it transmits signals, mostly via the mitogen-activated protein (MAPK) cascade, to increase synthesis of the gonadotrophin hormones: luteinising hormone (LH) and follicle-stimulating hormone (FSH). Activation of the MAPK cascade requires an elevation in cytosolic Ca(2+) levels, which is a result of both calcium influx and mobilisation from intracellular stores. However, Ca(2+) also transmits signals via an MAPK-independent pathway, through binding calmodulin (CaM), which is then able to bind a number of proteins to impart diverse downstream effects. Although the ability of GnRH to activate CaM was recognised over 20 years ago, only recently have some of the downstream effects been elucidated. GnRH was shown to activate the CaM-dependent phosphatase, calcineurin, which targets gonadotrophin gene expression both directly and indirectly via transcription factors such as nuclear factor of activated T-cells and Nur77, the Transducer of Regulated CREB (TORC) co-activators and also the prolyl isomerase, Pin1. Gonadotrophin gene expression is also regulated by GnRH-induced CaM-dependent kinases (CaMKs); CaMKI is able to derepress the histone deacetylase-inhibition of β-subunit gene expression, whereas CaMKII appears to be essential for the GnRH-activation of all three subunit genes. Asides from activating gonadotrophin gene expression, GnRH also exerts additional effects on gonadotroph function, some of which clearly occur via CaM, including the proliferation of immature gonadotrophs, which is dependent on calcineurin. In this review, we summarise these pathways, and discuss the additional functions that have been proposed for CaM with respect to modifying GnRH-induced signalling pathways via the regulation of the small GTP-binding protein, Gem, and/or the regulator of G-protein signalling protein 2.
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Ke Z, Lim S, Wang S, Fulwood J, Proffitt K, Madan B, Choong M, Flotow H, Virshup D, Lee M. 172 Identification of Small Molecule Inhibitors of Wnt Secretion. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71970-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lim S, Lee KB, Park CY. Comparison of Complications by Uterine Weight in Total Laparoscopic Hysterectomy. J Minim Invasive Gynecol 2012. [DOI: 10.1016/j.jmig.2012.08.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Rha S, Lim S, Koh M, Jeong H, Kim H, Lee S, Ahn J. 574 FGFR1, a Significant Prognostic Factor in Muscle Invasive Bladder Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72371-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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John M, Lim S. Expression of IL-10 and GM-CSF in Blood Monocytes and Alveolar Macrophages. METHODS IN MOLECULAR MEDICINE 2012; 44:81-90. [PMID: 21312122 DOI: 10.1385/1-59259-072-1:81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Peripheral blood monocytes (PBMs) and alveolar macrophages (AMs) are widely recognized as cells that play a central role in the regulation of immune and inflammatory activities, as well as in tissue remodeling. The fulfillment of these activities is mediated by complex and multifactorial processes involving products derived from macrophages and monocytes (1). Monocytes are an important source of cytokines that are released in asthma and are likely precursor cells to AMs. Macrophages usually elaborate powerful suppressive signals to limit the proliferative potential of T-cells, thus maintaining local immunologic homeostasis (2). In asthma, macrophages and monocytes may be stimulated by specific allergens to augment T-cell proliferation (3), which may result from a different profile of cytokines released from these cells. For example, increased release of granulocyte-macrophage colony-stimulating factor (GM-CSF) may inhibit the immunosuppressive effect of macrophages (4). Indeed, macrophages and monocytes from asthmatic subjects release increased amounts of proinflammatory cytokines, such as interleukin-1β (IL-1), tumor necrosis factor-α, Interferon-γ (IFN-γ), IL-6, and GM-CSF (5-8). Inhaled steroids used for the treatment of asthma reduce the number of infiltrating eosinophils, T-cells, macrophages, and mast cells in the airway submucosa (9). Suppression of proinflammatory cytokine release, such as GM-CSF, IL-4, IL-5, and regulated upon activation, normal T-cell expressed and secreted (RANTES), from many inflammatory and resident airway cells, is a likely mechanism of steroid action (10-12). Proinflammatory cytokine expression.
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Strand V, Baraf H, Lavin P, Lim S, Hosokawa H. Effectiveness and Safety of a Multicenter Extension and Retreatment Trial of Gel-200 in Patients with Knee Osteoarthritis. Cartilage 2012; 3:297-304. [PMID: 26069640 PMCID: PMC4297150 DOI: 10.1177/1947603512451024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To assess the continued effectiveness and safety of Gel-200 following observation and open-label retreatment in an extension protocol following a randomized, double-blind, phosphate buffered saline (PBS)-controlled trial (initial treatment trial). DESIGN Patients who completed initial blinded treatment were allowed to enroll into this extension protocol that permitted retreatment with Gel-200 when eligibility criteria were met. Retreatment was administered with a Gel-200 injection, without knowledge of initial treatment assignment (Gel-200 or PBS). Retreated patients were followed for up to 13 weeks. In the extension phase, durability of response following the first injection was analyzed by time to retreatment eligibility. During separate extension and retreatment phases, responses were assessed by WOMAC pain, stiffness, and physical function subscores, total score, and global assessments of disease activity (patient, physician) as well as safety of Gel-200. RESULTS In the extension phase, time-to-event analyses through 26 weeks following the initial injection showed statistically significantly longer times to retreatment in patients receiving Gel-200 compared with PBS (P < 0.05). Retreatment with Gel-200, e.g., a second injection, resulted in statistically significant improvements from retreatment baseline in all outcome measures (P < 0.0001). The incidence and type of adverse events after retreatment were comparable to those observed following initial injection of Gel-200 without allergic reactions, including "pseudosepsis" or unanticipated treatment-related serious adverse events. CONCLUSIONS These data demonstrate that a single injection of Gel-200 resulted in durable effectiveness through 26 weeks and that repeated treatment with Gel-200 relieved symptomatic osteoarthritis with a favorable safety profile.
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Park CY, Lim S, Lee KB. M287 FACTORS ASSOCIATED WITH PARAMETRIAL INVOLVEMENT IN PATIENTS WITH STAGE IB1 CERVICAL CANCER: WHO IS SUITABLE FOR LESS RADICAL SURGERY? Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61478-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Marchesan JT, Morelli T, Lundy SK, Jiao Y, Lim S, Inohara N, Nunez G, Fox DA, Giannobile WV. Divergence of the systemic immune response following oral infection with distinct strains of Porphyromonas gingivalis. Mol Oral Microbiol 2012; 27:483-95. [PMID: 23134613 DOI: 10.1111/omi.12001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2012] [Indexed: 12/17/2022]
Abstract
Periodontitis is a polymicrobial oral infection characterized by the destruction of tooth-supporting structures that can be linked to systemic diseases such as cardiovascular disease, diabetes or rheumatoid arthritis. Porphyromonas gingivalis, a bacterium implicated in the etiology of periodontitis, has shown variation in inducing T-cell responses among different strains. Therefore, in this study we investigated the strain-specific immune response using a murine experimental model of periodontitis. Periodontitis was induced by P. gingivalis strains A7A1-28, W83 and W50, and later confirmed by the presence of P. gingivalis in the oral microflora and by alveolar bone resorption. Splenocytes were evaluated for gene expression, cellular proteins and cytokine expression. Dendritic cells were stimulated in vitro for T helper cell-cytokine profiling. Results showed that P. gingivalis had the ability to alter the systemic immune response after bacterial exposure. Strains W50 and W83 were shown to induce alveolar bone loss, whereas the A7A1-28 strain did not significantly promote bone resorption in mice. Splenocytes derived from mice infected with strains W50 and W83 induced expression of high levels of interleukin-4 (IL-4) but A7A1-28 stimulated increased IL-10. Stimulation of dendritic cells in vitro showed a similar pattern of cytokine expression of IL-12p40, IL-6 and transforming growth factor-β among strains. A distinct systemic response in vivo was observed among different strains of P. gingivalis, with IL-10 associated with the least amount of alveolar bone loss. Evaluation of pathogen-driven systemic immune responses associated with periodontal disease pathogenesis may assist in defining how periodontitis may impact other diseases.
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Hong ES, Khang AR, Yoon JW, Kang SM, Choi SH, Park KS, Jang HC, Shin H, Walford GA, Lim S. Comparison between sitagliptin as add-on therapy to insulin and insulin dose-increase therapy in uncontrolled Korean type 2 diabetes: CSI study. Diabetes Obes Metab 2012; 14:795-802. [PMID: 22443183 DOI: 10.1111/j.1463-1326.2012.01600.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AIM Individuals requiring insulin therapy for type 2 diabetes often require escalation of their regimen to achieve glycaemic control. Optimal management strategies for uncontrolled type 2 diabetes would improve glycaemic control without hypoglycaemia and weight gain. This study compared the efficacy and tolerability of adding sitagliptin, an oral dipeptidyl peptidase-4 inhibitor, and an up to 20% increase in insulin dose in patients with uncontrolled type 2 diabetes on insulin therapy. METHODS We conducted a 24-week, randomized, active-competitor, parallel-group study in subjects with uncontrolled type 2 diabetes [haemoglobin A1c (HbA1c) = 7.5-11%] currently using insulin therapy. Subjects were randomly assigned to either the sitagliptin adding (100 mg daily, n = 70) or an insulin-increasing arm (≥ 10% at week 12 and ≥ 10% at week 24, n = 70) while continuing other medications. RESULTS Average baseline HbA1c was 9.2% in both groups. HbA1c decreased more at 24 weeks in the sitagliptin adding than the insulin-increasing arm (-0.6 ± 0.1% vs. -0.2 ± 0.1%, p < 0.01). Insulin was increased by 25% at 24 weeks in the insulin-increasing group. Hypoglycaemic events were less common and less severe in sitagliptin adding arm than insulin-increasing arm (7.0 vs. 14.3 events per patient-year, p < 0.05). Weight was stable in the sitagliptin adding subjects (68.6 ± 11.6 vs. 68.1 ± 11.4 kg) but increased in the insulin-increasing subjects (66.2 ± 10.6 vs. 67.4 ± 9.7 kg, p < 0.05). Other adverse events occurred at similar rates in both arms. CONCLUSIONS Compared to a 25% increase in insulin dose, adding sitagliptin to an insulin-based regimen was more effective at lowering HbA1c and associated with less hypoglycaemia and weight gain over 24 weeks. CLINICAL TRIAL NUMBER NCT01100125.
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Lim S, LoSasso T. SU-E-T-534: Beam and MLC Commissioning and Assessment of Three Commercial Treatment Planning Systems. Med Phys 2012; 39:3828. [PMID: 28518514 DOI: 10.1118/1.4735623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE To assess and compare the open beam and multi-leaf collimator modeling of Pinnacle, Ecilpse (AAA and Acuros) and RayStation planning systems. METHOD AND MATERIALS The 6MV photon beam of a Varian TrueBeam with Millennium 120 MLC was used for this study. Measurements made with combinations of ion chamber, radiochromic film, and diodes in water and plastic phantoms. Depth and crossplane profiles of open square fields shaped by jaws or MLC ranged from 3×3 to 40×40cm2 and from 0 to 20 cm depth. Depth dose, flatness (80% of FWHM), and penumbra (20-80%) of calculated and measured profiles were compared. Various MLC test patterns were calculated and compared with measurements to assess the modeling of the round leaf edge, tongue-and-groove, and interleaf transmissions. RESULTS Calculated depth doses are within 1.0% and flatness is within 2% for all field sizes and depths. Jaw penumbrae are within 2mm and 3mm for 20×20 and 30×30cm2 at 10cm depth respectively. MLC penumbrae (20-80%) of the three systems are within 0.3mm and 1.0mm for a 3×3cm2 and 10×10cm2 MLC apertures. Notably, to match the measured MLC round-edge transmission, the half thickness (10% transmission) leaf-tip width of the current RayStation MLC model has to be broadened to 10mm. All three systems appear to adequately model the tongue-and-groove. Pinnacle explicitly models the interleaf transmission while Eclipse and RayStation simply use average MLC transmission. CONCLUSIONS All three systems are capable of generating clinically acceptable beam models for open fields. Based upon the round-edge profile, Eclipse and Pinnacle provide better MLC models than RayStation. Among the three systems, Eclipse took the least time and effort to commission these features.
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Lovelock D, Lim S, LoSasso T. SU-C-213CD-02: The Use of Optically Stimulated Luminescent Dosimeters in a Cone Beam Quality Assurance Testing. Med Phys 2012. [DOI: 10.1118/1.4734631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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