1
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Ng AS, Tan J, Ng E, Tay KY, Au WL, Tan LC, Tan EK. Serum peroxiredoxin 3 is reduced in genetic carriers of Parkinson's disease. J Neurol Neurosurg Psychiatry 2023; 94:250-251. [PMID: 36171102 DOI: 10.1136/jnnp-2022-329433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/08/2022] [Indexed: 11/04/2022]
Affiliation(s)
- Adeline Sl Ng
- Department of Neurology, National Neuroscience Institute, Singapore .,Neuroscience and Behavioural Disorders Program, Duke-NUS Medical School, Singapore
| | - Jayne Tan
- Department of Neurology, National Neuroscience Institute, Singapore
| | - E Ng
- Department of Neurology, National Neuroscience Institute - Singapore General Hospital, Singapore
| | - Kay Yaw Tay
- Department of Neurology, National Neuroscience Institute, Singapore
| | - Wing Lok Au
- Department of Neurology, National Neuroscience Institute, Singapore
| | - Louis Cs Tan
- Department of Neurology, National Neuroscience Institute, Singapore
| | - Eng King Tan
- Neuroscience and Behavioural Disorders Program, Duke-NUS Medical School, Singapore .,Department of Neurology, National Neuroscience Institute - Singapore General Hospital, Singapore
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2
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Ng E, Tay JRH, Leung NHL, Seneviratne CJ. Letter to the Editor, "Sources of SARS-CoV-2 and Other Microorganisms in Dental Aerosols". J Dent Res 2021; 101:236. [PMID: 34928742 DOI: 10.1177/00220345211037224] [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: 11/15/2022] Open
Affiliation(s)
- E Ng
- Department of Restorative Dentistry, National Dental Centre Singapore, Singapore
| | - J R H Tay
- Department of Restorative Dentistry, National Dental Centre Singapore, Singapore
| | - N H L Leung
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - C J Seneviratne
- Oral Health Academic Clinical Programme, Duke-NUS Medical School, Singapore.,Singapore Oral Microbiomics Initiative, National Dental Research Institute Singapore, National Dental Centre Singapore, Singapore
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3
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Affiliation(s)
- S. Denning
- Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - E. Ng
- The Hospital for Sick Children, Toronto, Canada
- University of Toronto, Toronto, Canada
| | - K.W.Y. Wong Riff
- The Hospital for Sick Children, Toronto, Canada
- University of Toronto, Toronto, Canada
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4
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Macrae J, Ng E, Whyte H. Anaesthesia for premature infants. BJA Educ 2021; 21:355-363. [PMID: 34447582 DOI: 10.1016/j.bjae.2021.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- J Macrae
- Imperial College Healthcare Trust, London, UK
| | - E Ng
- Hospital for Sick Children, Toronto, Ontario, Canada
| | - H Whyte
- Hospital for Sick Children, Toronto, Ontario, Canada
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5
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Ng E, Tay JRH, Ong MMA, Bostanci N, Belibasakis GN, Seneviratne CJ. Probiotic therapy for periodontal and peri-implant health - silver bullet or sham? Benef Microbes 2021; 12:215-230. [PMID: 34057054 DOI: 10.3920/bm2020.0182] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Probiotics are thought to be beneficial microbes that influence health-related outcomes through host immunomodulation and modulation of the bacteriome. Its reported success in the treatment of gastrointestinal disorders has led to further research on its potential applicability within the dental field due to similarities such as a polymicrobial aetiology and disease associated microbial-shifts. Although the literature is replete with studies demonstrating its efficacy, the use of probiotics in dentistry continues to polarise opinion. Here, we explore the evidence for probiotics and its effect on periodontal and peri-implant health. MEDLINE, EMBASE, and CENTRAL were systemically searched from June 2010 to June 2020 based on a formulated search strategy. Of 1,956 potentially relevant articles, we selected 27 double-blinded randomised clinical trials in the areas of gingivitis, periodontitis, residual pockets during supportive periodontal therapy, and peri-implant diseases, and reviewed their efficacy in these clinical situations. We observed substantial variation in treatment results and protocols between studies. Overall, the evidence for probiotic therapy for periodontal and peri-implant health appears unconvincing. The scarcity of trials with adequate power and follow-up precludes any meaningful clinical recommendations. Thus, the routine use of probiotics for these purposes are currently unsubstantiated. Further multi-centre trials encompassing a standardised investigation on the most promising strains and administration methods, with longer observation times are required to confirm the benefits of probiotic therapy for these applications.
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Affiliation(s)
- E Ng
- Department of Restorative Dentistry, National Dental Centre Singapore, 5 Second Hospital Ave, 168938, Singapore
| | - J R H Tay
- Department of Restorative Dentistry, National Dental Centre Singapore, 5 Second Hospital Ave, 168938, Singapore
| | - M M A Ong
- Department of Restorative Dentistry, National Dental Centre Singapore, 5 Second Hospital Ave, 168938, Singapore.,Oral Health Academic Clinical Programme, Duke-NUS Medical School, 8 College Road, 169857, Singapore
| | - N Bostanci
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, P.O. Box 4064, 14104 Huddinge, Sweden
| | - G N Belibasakis
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, P.O. Box 4064, 14104 Huddinge, Sweden
| | - C J Seneviratne
- Oral Health Academic Clinical Programme, Duke-NUS Medical School, 8 College Road, 169857, Singapore.,Singapore Oral Microbiomics Initiative, National Dental Research Institute Singapore, National Dental Centre Singapore, Second Hospital Ave, 168938, Singapore
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6
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Aviram A, Quaglietta P, Warshafsky C, Zaltz A, Weiner E, Melamed N, Ng E, Barrett J, Ronzoni S. Utility of ultrasound assessment in management of pregnancies with preterm prelabor rupture of membranes. Ultrasound Obstet Gynecol 2020; 55:806-814. [PMID: 31332850 DOI: 10.1002/uog.20403] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/20/2019] [Accepted: 07/02/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES To evaluate the utility of ultrasound markers in the management of pregnancies complicated by preterm prelabor rupture of membranes (PPROM) between 23 + 0 and 33 + 6 weeks' gestation, and to assess the ability of ultrasound markers to predict adverse neonatal outcomes. METHODS This was a retrospective cohort study of all patients with PPROM between 23 + 0 and 33 + 6 weeks' gestation and latency period (PPROM to delivery) > 48 h, who delivered before 34 weeks' gestation at a tertiary referral center between 2005 and 2017. All patients underwent a non-stress test daily and an ultrasound scan twice a week for assessment of amniotic fluid volume, biophysical profile (BPP) and umbilical artery (UA) pulsatility index (PI). In patients with suspected fetal growth restriction, fetal middle cerebral artery (MCA)-PI was also assessed and the cerebroplacental ratio (CPR) calculated. The last ultrasound examination performed prior to delivery was analyzed. We compared the characteristics and outcomes between women who were delivered owing to clinical suspicion of chorioamnionitis and those who were not delivered for this indication. The primary objective was to evaluate the utility of ultrasound in the management of patients with PPROM. The secondary objective was to assess the diagnostic performance of ultrasound markers (BPP score < 6, oligohydramnios, UA-PI > 95th percentile, MCA-PI < 5th percentile, CPR < 5th percentile) for the prediction of composite adverse neonatal outcome, which was defined as the presence of one or more of: perinatal death, respiratory distress syndrome, periventricular leukomalacia, intraventricular hemorrhage Grade 3 or 4, necrotizing enterocolitis, hypoxic ischemic encephalopathy, neonatal sepsis or neonatal seizures. RESULTS A total of 504 women were included in the study, comprising 120 with suspected chorioamnionitis and 384 without. Women with suspected chorioamnionitis, compared with those without, were less likely to be nulliparous (34.2% vs 45.3%; P = 0.03) and more likely to have fever (50.8% vs 2.6%; P < 0.001) and be delivered by Cesarean section (69.2% vs 42.4%; P < 0.001), mainly owing to a history of previous Cesarean section (18.3% vs 9.1%; P = 0.005) and to having non-reassuring fetal heart rate tracings (32.5% vs 14.6%; P < 0.001). No significant differences were found between the two groups with regard to the median amniotic fluid volume, overall BPP score, BPP score < 6, MCA-PI or CPR. Median UA-PI was slightly higher in the suspected-chorioamnionitis group, yet the incidence of UA-PI > 95th percentile was similar between the two groups. There was a higher incidence of composite adverse neonatal outcome in the group with suspected chorioamnionitis than in the group without (78.3% vs 64.3%, respectively; P = 0.004). However, on logistic regression analysis, none of the ultrasound markers evaluated was found to be associated with chorioamnionitis or composite adverse neonatal outcome, and they all had a poor diagnostic performance for the prediction of chorioamnionitis and composite adverse neonatal outcome. CONCLUSIONS Commonly used ultrasound markers in pregnancies complicated by PPROM were similar between women delivered for suspected chorioamnionitis and those delivered for other indications, and performed poorly in predicting composite adverse neonatal outcome. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- A Aviram
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, affiliated with the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - P Quaglietta
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, affiliated with the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - C Warshafsky
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, affiliated with the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - A Zaltz
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, affiliated with the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - E Weiner
- Department of Obstetrics and Gynecology, the Edith Wolfson Medical Center, Holon, Israel, affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - N Melamed
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, affiliated with the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - E Ng
- Department of Newborn and Developmental Paediatrics, Sunnybrook Health Sciences Centre, affiliated with the Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - J Barrett
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, affiliated with the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - S Ronzoni
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, affiliated with the Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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Bogdan A, Barnett C, Ali A, AlQwaifly M, Abraham A, Mannan S, Ng E, Bril V. Chronic stress, depression and personality type in patients with myasthenia gravis. Eur J Neurol 2019; 27:204-209. [PMID: 31408565 DOI: 10.1111/ene.14057] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 03/13/2019] [Accepted: 08/05/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Stress is a known risk factor for the onset and modulation of disease activity in autoimmune disorders. The aim of this cross-sectional study was to determine any associations between myasthenia gravis (MG) severity and chronic stress, depression and personality type. METHODS In all, 179 consecutive adult patients with confirmed MG attending the Neuromuscular Clinic between March 2017 and December 2017 were included. At baseline, patients were assessed clinically and they completed self-administered scales for disease severity, perceived stress, depression and personality type. RESULTS Higher disease severity [Myasthenia Gravis Impairment Index (MGII)] showed a moderate correlation with depression score (Beck's Depression Inventory, Second Edition, r = 0.52, P < 0.001) and a lower correlation with chronic stress (Trier Inventory for Assessment of Chronic Stress, r = 0.28, P = 0.001). Chronic stress scores were different according to personality types (anova, P = 0.02). The linear regression model with MGII score as the dependent variable showed R2 = 0.34, likelihood ratio chi-squared 74.55, with P < 0.0001. The only variables that predicted disease severity were depression scores (P < 0.0001) and female sex (P = 0.003). CONCLUSIONS A significant association of MG severity with depression and chronic stress was found, as well as with female gender. These findings should raise awareness that the long-term management of MG should address depression and potential stress and consider behavioural management to prevent stress-related immune imbalance.
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Affiliation(s)
- A Bogdan
- Division of Neurology, Department of Medicine, Ellen and Martin Prosserman Centre for Neuromuscular Diseases, University Health Network, University of Toronto, Toronto, ON, Canada
| | - C Barnett
- Division of Neurology, Department of Medicine, Ellen and Martin Prosserman Centre for Neuromuscular Diseases, University Health Network, University of Toronto, Toronto, ON, Canada.,Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - A Ali
- National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | - M AlQwaifly
- College of Medicine, Qassim University, Buraidah, Saudi Arabia
| | - A Abraham
- Neuromuscular Diseases Unit, Department of Neurology, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - S Mannan
- Division of Neurology, Department of Medicine, Ellen and Martin Prosserman Centre for Neuromuscular Diseases, University Health Network, University of Toronto, Toronto, ON, Canada
| | - E Ng
- Division of Neurology, Department of Medicine, Ellen and Martin Prosserman Centre for Neuromuscular Diseases, University Health Network, University of Toronto, Toronto, ON, Canada
| | - V Bril
- Division of Neurology, Department of Medicine, Ellen and Martin Prosserman Centre for Neuromuscular Diseases, University Health Network, University of Toronto, Toronto, ON, Canada
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Ng E, Topliss D, Paraskeva M, Paul E, Sztal-Mazer S. The Utility of Prophylactic Zoledronic Acid in Patients Undergoing Lung Transplantation - A Retrospective Analysis. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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9
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Croker J, Mincham S, Harper C, Chee R, Ng E, Lim T. EP-1378: Stereotactic body radiotherapy in an Australia centre for biopsy proven non-small cell lung cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31687-6] [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: 10/14/2022]
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10
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Wai KM, Wang XM, Lin TH, Wong MS, Zeng SK, He N, Ng E, Lau K, Wang DH. Observational evidence of a long-term increase in precipitation due to urbanization effects and its implications for sustainable urban living. Sci Total Environ 2017; 599-600:647-654. [PMID: 28494289 DOI: 10.1016/j.scitotenv.2017.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/27/2017] [Accepted: 05/02/2017] [Indexed: 06/07/2023]
Abstract
Although projected precipitation increases in East Asia due to future climate change have aroused concern, less attention has been paid by the scientific community and public to the potential long-term increase in precipitation due to rapid urbanization. A ten-year precipitation dataset was analysed for both a rapidly urbanized megacity and nearby suburban/rural stations in southern China. Rapid urbanization in the megacity was evident from satellite observations. A statistically significant, long-term, increasing trend of precipitation existed only at the megacity station (45.6mm per decade) and not at the other stations. The increase was attributed to thermal and dynamical modifications of the tropospheric boundary layer related to urbanization, which was confirmed by the results of our WRF-SLUCM simulations. The results also suggested that a long-term regional increase in precipitation, caused by greenhouse gas-induced climate change, for instance, was not evident within the study period. The urbanization-induced increase was found to be higher than the precipitation increase (18.3mm per decade) expected from future climate change. The direct climate impacts due to rapid urbanization is highlighted with strong implications for urban sustainable development and the planning of effective adaptation strategies for issues such as coastal defenses, mosquito-borne disease spread and heat stress mortality.
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Affiliation(s)
- K M Wai
- Institute of Future Cities, Chinese University of Hong Kong, Hong Kong Special Administrative Region.
| | - X M Wang
- School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China.
| | - T H Lin
- Center for Space and Remote Sensing Research, National Central University, Taiwan
| | - M S Wong
- Department of Land Surveying and Geo-informatics, Hong Kong Polytechnic University, Hong Kong Special Administrative Region
| | - S K Zeng
- Graduate Institute of Space Science, National Central University, Taiwan
| | - N He
- Institute of Environment, Energy and Sustainability, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - E Ng
- Institute of Future Cities, Chinese University of Hong Kong, Hong Kong Special Administrative Region; Institute of Environment, Energy and Sustainability, Chinese University of Hong Kong, Hong Kong Special Administrative Region; School of Architecture, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - K Lau
- School of Architecture, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - D H Wang
- School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China
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Wong V, Yung M, Chan L, Lee J, Lee K, Chiu P, Wong S, Ng E. OR38: Does Early Total Parenteral Nutrition Improve Post-Operative Outcome for Intestinal Obstruction? – A Randomized Controlled Trial. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30749-5] [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: 11/29/2022]
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12
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Loong H, Mo F, Li L, Lee C, Lam KC, Koh J, Chiu P, Teoh A, Chan A, Ng E, Yeo W. A Phase I/II study everolimus in combination with paclitaxel-carboplatin in patients with advanced adenocarcinoma of the stomach. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Ohuabunwa U, Ng E. COMPREHENSIVE CARE FOR JOINT REPLACEMENT PATIENTS: HISTORY AND NEW ACHIEVEMENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4822] [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: 11/12/2022] Open
Affiliation(s)
| | - E. Ng
- Montefiore, New York, New York
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Glover J, Reynolds S, Echavarria M, Ng E, Velez-Cubian F, Moodie C, Garrett J, Fontaine J, Toloza E. P178 Smoking history as a risk factor for atrial fibrillation following robotic-assisted video-thoracoscopic pulmonary lobectomy. Chest 2017. [DOI: 10.1016/j.chest.2017.04.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Reynolds S, Glover J, Echavarria M, Ng E, Velez-Cubian F, Moodie C, Garrett J, Fontaine J, Toloza E. P187 Diabetes predisposes patients to atrial fibrillation after robotic-assisted video-thoracoscopic pulmonary lobectomy. Chest 2017. [DOI: 10.1016/j.chest.2017.04.090] [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: 11/29/2022] Open
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Fruchter R, Castilla C, Ng E, Pomeranz M, Femia A. Erythema nodosum in association with idiopathic granulomatous mastitis: a case series and review of the literature. J Eur Acad Dermatol Venereol 2017; 31:e391-e393. [DOI: 10.1111/jdv.14194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- R. Fruchter
- The Ronald O. Perelman Department of Dermatology; New York University Langone Medical Center; 10016 New York NY USA
| | - C. Castilla
- The Ronald O. Perelman Department of Dermatology; New York University Langone Medical Center; 10016 New York NY USA
| | - E. Ng
- The Ronald O. Perelman Department of Dermatology; New York University Langone Medical Center; 10016 New York NY USA
| | - M.K. Pomeranz
- The Ronald O. Perelman Department of Dermatology; New York University Langone Medical Center; 10016 New York NY USA
- Chief of Dermatology; NYC Health and Hospital/Bellevue; 10016 New York NY USA
| | - A.N. Femia
- The Ronald O. Perelman Department of Dermatology; New York University Langone Medical Center; 10016 New York NY USA
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Reynolds S, Glover J, Echavarria M, Ng E, Velez-Cubian F, Moodie C, Garrett J, Fontaine J, Toloza E. Diabetes predisposes patients to atrial fibrillation after robotic-assisted video-thoracoscopic pulmonary lobectomy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx085.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Glover J, Reynolds S, Ng E, Echavarria M, Velez-Cubian F, Moodie C, Garrett J, Fontaine J, Toloza E. Effect of age on risk for atrial fibrillation following robotic-assisted video-thoracoscopic pulmonary lobectomy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx085.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Glover J, Reynolds S, Echavarria M, Ng E, Velez-Cubian F, Moodie C, Garrett J, Fontaine J, Toloza E. Smoking history as a risk factor for atrial fibrillation following robotic-assisted video-thoracoscopic pulmonary lobectomy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx085.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wu X, Stener-Victorin E, Liu J, Wu T, Ng E, Legro R, Zhang H. Acupuncture and clomiphene for infertility in the polycystic ovary syndrome: a multicentre rondomized controlled trial. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.08.002] [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: 10/21/2022]
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Church P, Ng E, Weisz D, Cavanagh A, Dunn M. Location! Location! Location! The Impact of Single-Room Design on Neurodevelopment of Preterm Infants. Paediatr Child Health 2016. [DOI: 10.1093/pch/21.supp5.e83] [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
BACKGROUND: The impact of neonatal intensive care unit (NICU) design on neurodevelopmental outcomes of preterm infants is uncertain. Although single room design (SRD) reduces nosocomial infections and improves breastfeeding rates and parental satisfaction, recent data suggests that SRD may be associated with language delays and alterations in cortical development.
OBJECTIVES: To compare neurodevelopmental outcomes of preterm infants who received care in a contemporary SRD environment compared with a similar cohort who received care during an earlier period with an open bay design (OBD).
DESIGN/METHODS: Retrospective single-centre cohort study comparing the neurodevelopmental outcomes of all surviving extremely low birth weight (ELBW) i nfants admitted within 24 hours of birth in 2009 (OBD epoch) and 2011 (SRD epoch). The primary outcome was moderate or severe neurodevelopmental impairment using the Bayley Scales of Infant Development, third edition (BSID-III) at 18 months corrected age. Secondary outcomes included severe NDI and BSID-III scores. Multivariable logistic regression (MLR) analysis was used to evaluate the independent association between NICU design and outcomes.
RESULTS: The study included 100 ELBW infants in 2009, and 98 in 2011. The 2 epochs were similar in follow-up rates (80% in 2009; 82% in 2011) and infant characteristics (including those lost to follow up). Mortality was 7.9% in 2009 and 6.1% in 2011. BSID-III language scores (median [interquartile range]) were similar for infants in the OBD and SRD epochs (86 [71,100] vs. 81 [71,94], p=NS). On MLR analysis, NICU design was not associated with significant differences in NDI or BSID-III language score less than 80 after adjustment for antenatal and perinatal confounders. (Table1)
CONCLUSION: There was no significant difference in NDI between cohorts of ELBW infants cared for in an SRD compared with an OBD NICU design environment. The contrast in findings from earlier studies may be attributable to the local context of government-supported parental leave and strong promotion of parental presence in the NICU.
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Joshi R, Thrift A, Praveen D, Ntim M, Ng E, Vedanthan R, Thorogood M, Gyamfi J. OC05_01 Task-Shifting for the Management of Hypertension: Lessons From the Global Alliance for Chronic Diseases. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.016] [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: 11/28/2022] Open
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Yu WY, Ng E, Hale C, Hu S, Pomeranz MK. Papular acantholytic dyskeratosis of the vulva associated with familial Hailey-Hailey disease. Clin Exp Dermatol 2016; 41:628-31. [PMID: 27028372 DOI: 10.1111/ced.12848] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2015] [Indexed: 11/28/2022]
Abstract
Papular acantholytic dyskeratosis (PAD) of the vulva is a rare, chronic disorder first described in 1984. It presents in young women as white to skin-coloured smooth papules over the vulva, which are persistent but asymptomatic. Histologically, there is hyperkeratosis and focal parakeratosis with acantholytic and dyskeratotic cells forming corps ronds and grains, placing PAD within Ackerman's spectrum of focal acantholytic dyskeratoses with Hailey-Hailey disease (HHD) and Darier disease. There have been 17 previous reports of PAD of the vulva, to our knowledge. Only one demonstrated a familial pattern, and none of the cases was associated with a family history of HHD. This is the first report of PAD and HHD in a single family, suggesting that PAD and HHD lie on a spectrum of disease and are genetically linked.
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Affiliation(s)
- W Y Yu
- School of Medicine, University of California, San Francisco, CA, USA
| | - E Ng
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA
| | - C Hale
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA
| | - S Hu
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA
| | - M K Pomeranz
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA
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Peters OA, Galicia J, Arias A, Tolar M, Ng E, Shin SJ. Effects of two calcium silicate cements on cell viability, angiogenic growth factor release and related gene expression in stem cells from the apical papilla. Int Endod J 2015; 49:1132-1140. [DOI: 10.1111/iej.12571] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 10/30/2015] [Indexed: 12/30/2022]
Affiliation(s)
- O. A. Peters
- Department of Endodontics; University of the Pacific Arthur A. Dugonic School of Dentistry; San Francisco CA USA
| | - J. Galicia
- Department of Endodontics; University of the Pacific Arthur A. Dugonic School of Dentistry; San Francisco CA USA
| | - A. Arias
- Department of Endodontics; University of the Pacific Arthur A. Dugonic School of Dentistry; San Francisco CA USA
| | - M. Tolar
- Department of Orthodontics; University of the Pacific Arthur A. Dugonic School of Dentistry; San Francisco CA USA
| | - E. Ng
- Department of Endodontics; University of the Pacific Arthur A. Dugonic School of Dentistry; San Francisco CA USA
| | - S. J. Shin
- Department of Endodontics; University of the Pacific Arthur A. Dugonic School of Dentistry; San Francisco CA USA
- Department of Conservative Dentistry and Oral Science Research Center; College of Dentistry; Gangnam Severance Hospital; Yonsei University; Seoul Korea
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Kuk N, To J, McBride C, Hong A, Ng E, Li N, Teo M, Zhang V, Velasco D, Ling L, Sun Y, Keem M. P14.02 Systematic review: does a positive human papillomavirus vaccination status increase the risk of unsafe sexual health practice in australian women? Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Shah PS, Mirea L, Ng E, Solimano A, Lee SK. Association of unit size, resource utilization and occupancy with outcomes of preterm infants. J Perinatol 2015; 35:522-9. [PMID: 25675049 DOI: 10.1038/jp.2015.4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 11/28/2014] [Accepted: 12/17/2014] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Assess association of NICU size, and occupancy rate and resource utilization at admission with neonatal outcome. STUDY DESIGN Retrospective cohort study of 9978 infants born at 23-32 weeks gestation and admitted to 23 tertiary-level Canadian NICUs during 2010-2012. Adjusted odds ratios (AOR) were estimated for a composite outcome of mortality/any major morbidity with respect to NICU size, occupancy rate and intensity of resource utilization at admission. RESULTS A total of 2889 (29%) infants developed the composite outcome, the odds of which were higher for 16-29, 30-36 and >36-bed NICUs compared with <16-bed NICUs (AOR (95% CI): 1.47 (1.25-1.73); 1.49 (1.25-1.78); 1.55 (1.29-1.87), respectively) and for NICUs with higher resource utilization at admission (AOR: 1.30 (1.08-1.56), Q4 vs Q1) but not different according to NICU occupancy. CONCLUSION Larger NICUs and more intense resource utilization at admission are associated with higher odds of a composite adverse outcome in very preterm infants.
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Affiliation(s)
- P S Shah
- 1] Maternal-Infant Care Research Centre, Mount Sinai Hospital, Toronto, ON, Canada [2] Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - L Mirea
- 1] Maternal-Infant Care Research Centre, Mount Sinai Hospital, Toronto, ON, Canada [2] Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - E Ng
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - A Solimano
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - S K Lee
- 1] Maternal-Infant Care Research Centre, Mount Sinai Hospital, Toronto, ON, Canada [2] Department of Pediatrics, University of Toronto, Toronto, ON, Canada
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Ng E, Tandon A, Ho B, Chong B. Characterising benign fibrous soft-tissue tumours in adults: why is it so difficult and what do we need to know? Clin Radiol 2015; 70:684-97. [DOI: 10.1016/j.crad.2015.02.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 01/28/2015] [Accepted: 02/05/2015] [Indexed: 01/06/2023]
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Hwang J, Ng E, O'campo P, Muntaner C. Associations between labour market expenditures and self-rated health: A pooled cross-sectional analysis of 19 European nations and 5 welfare regimes. Eur J Public Health 2014. [DOI: 10.1093/eurpub/cku164.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ng E, Rodriguez K, Velez-Cubian FO, Thau MR, Zhang WW, Moodie CC, Garrett J, Fontaine JP, Robinson L, Toloza E. P-171 * DOES SOCIO-ECOMOMIC STATUS MATTER WITH PERIOPERATIVE OUTCOMES AFTER ROBOTIC-ASSISTED PULMONARY LOBECTOMY? Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.171] [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: 11/12/2022] Open
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Abstract
Decades of research into the pathophysiology and management of diabetic retinopathy have revolutionized our understanding of the disease process. Diabetic retinopathy is now more accurately defined as a neurovascular rather than a microvascular disease as neurodegenerative disease precedes and coexists with microvascular changes. However, the complexities of the pathways involved in different stages of disease severity continue to remain a challenging issue for drug discovery. Currently, laser photocoagulation is the mainstay of treatment for proliferative diabetic retinopathy, but is gradually being superseded for diabetic macular oedema. However, it is destructive and at best results in a gradual but modest improvement in vision in the long term. So, diabetic retinopathy remains the most prevalent cause of visual impairment in the working-age population despite established screening programmes, early diagnosis and treatment of the condition. The recent discovery of inhibitors of vascular endothelial growth factor is revolutionizing the management of diabetic retinopathy, particularly diabetic macular oedema. However, not all patients respond to anti-vascular endothelial growth factor agents, reinforcing the fact that diabetic retinopathy is a multifactorial disease. Studies are still required to improve our understanding of how retinal structure correlates with visual function. It is hoped that these will lead to better characterization of the disease phenotype based on treatment responses to different agents and allow an algorithm to be developed that will guide the management of diabetic retinopathy and diabetic macular oedema at different stages of severity.
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Affiliation(s)
- L Z Heng
- NIHR Biomedical Research Centre at Moorfields Eye Hospital, NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK
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Wu T, Ahmed A, Bril V, Orszag A, Ng E, Nwe P, Perkins BA. Variables associated with corneal confocal microscopy parameters in healthy volunteers: implications for diabetic neuropathy screening. Diabet Med 2012; 29:e297-303. [PMID: 22519850 DOI: 10.1111/j.1464-5491.2012.03678.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM Corneal confocal microscopy is a promising screening method for diabetic neuropathy. Although much research in this field has been accomplished, we aimed to determine and confirm the known clinical and eyewear variables associated with the parameters of corneal confocal microscopy specifically in healthy volunteers, in particular associations with corneal nerve fibre length. METHODS Clinical characteristics, electrophysiological examination and a general clinical eye history were collected from 64 healthy volunteers. Corneal confocal microscopy was performed to determine corneal nerve fibre length, corneal nerve branch density, corneal nerve fibre density and tortuosity coefficient. Univariate and multivariate linear regression analysis was used to determine clinical variables associated with corneal nerve fibre length parameters. RESULTS We observed that corneal nerve fibre length has a broad distribution in healthy volunteers (18 ± 4 mm/mm(2), 95% confidence interval, 12.3-25.7 mm/mm(2)). Multivariate regression analysis demonstrated that HbA(1c) was the only independent clinical factor to account for variations in corneal nerve fibre length, independent of age and status of contact lens wear. CONCLUSIONS This study does not provide convincing evidence that corneal nerve fibre length is independently associated with age or the wearing of contact lenses, and that these factors are therefore unlikely to hinder valid screening for polyneuropathies such as diabetic neuropathy. Furthermore, the strong inverse association of corneal nerve fibre length with glycaemic exposure may support the use of this parameter to detect subclinical pre-diabetic nerve injury.
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Affiliation(s)
- T Wu
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Toronto, Canada
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Comin J, David E, Pugash R, Annamalai G, Ng E. Abstract No. 154: Use of the Amplatzer Vascular Plug 4 for proximal splenic artery embolization. J Vasc Interv Radiol 2012. [DOI: 10.1016/j.jvir.2011.12.198] [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] Open
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Hertz P, Bril V, Orszag A, Ahmed A, Ng E, Nwe P, Ngo M, Perkins BA. Reproducibility of in vivo corneal confocal microscopy as a novel screening test for early diabetic sensorimotor polyneuropathy. Diabet Med 2011; 28:1253-60. [PMID: 21434993 DOI: 10.1111/j.1464-5491.2011.03299.x] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AIM With the goal of identifying a valid biomarker of early diabetic sensorimotor polyneuropathy, we aimed to identify the most reliable in vivo corneal confocal microscopy (CCM) parameter for detection of abnormality of small nerve fibre morphology. METHODS Cross-sectional examination of 46 subjects (26 with Type 1 diabetes and 20 healthy volunteers) examined by corneal confocal microscopy for intra- and interobserver reproducibility by the intraclass correlation coefficient method. Corneal nerve fibre density, nerve branch density, nerve fibre length and tortuosity were measured on the same day that subjects underwent clinical and electrophysiological examination. RESULTS The 26 subjects with Type 1 diabetes had mean age and diabetes duration 42.8 ± 16.9 and 22.7 ± 16.4 years, respectively. Twelve of those subjects (46%) did not meet criteria for diabetic sensorimotor polyneuropathy, while five (19%) had mild, three (12%) had moderate and six (23%) had severe diabetic sensorimotor polyneuropathy. None of the healthy volunteers (mean age 41.4 ± 17.3 years) had polyneuropathy. Re-examination of selected corneal confocal microscopy images or sets of 40 images yielded very good to excellent intraclass correlation coefficients for all parameters. However, only one parameter (corneal nerve fibre length) emerged with consistently very good reproducibility using a clinically relevant 'study-level' protocol of subject re-examination (intra-observer intraclass correlation coefficient 0.72; interobserver intraclass correlation coefficient 0.73). Despite no differences in intraclass correlation coefficient between subgroups, corneal nerve fibre length was significantly lower (14.76 vs. 16.15 mm/mm(2), P = 0.04) in those with diabetes. CONCLUSIONS Development of corneal confocal microscopy may need to focus on the measurement of corneal nerve fibre length, as it appears to have superior reliability in comparison with other parameters, and as evidence exists for its potential as a clinical biomarker of early diabetic sensorimotor polyneuropathy.
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Affiliation(s)
- P Hertz
- Division of Endocrinology and Metabolism Division of Neurology, University of Toronto, Toronto, ON, Canada
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Vlantis AC, Gao H, Wong E, Ng E, Chiu P, van Hasselt CA. O29. Endoscopic oesophageal screening for synchronous primaries in patients with oral cavity carcinoma. Oral Oncol 2011. [DOI: 10.1016/j.oraloncology.2011.06.140] [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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Barth D, Nabavi Nouri M, Ng E, Nwe P, Bril V. Comparison of IVIg and PLEX in patients with myasthenia gravis. Neurology 2011; 76:2017-23. [PMID: 21562253 PMCID: PMC3109880 DOI: 10.1212/wnl.0b013e31821e5505] [Citation(s) in RCA: 194] [Impact Index Per Article: 14.9] [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: 10/26/2010] [Accepted: 02/18/2011] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Both IV immunoglobulin (IVIg) and plasma exchange (PLEX) are immunomodulatory treatments used to treat patients with myasthenia gravis (MG), but the choice of which treatment to administer to patients is limited due to lack of evidence from adequately powered, masked, randomized, standardized trials. METHODS We randomized 84 patients with moderate to severe MG defined as a Quantitative Myasthenia Gravis Score for disease severity (QMGS) of >10.5 and worsening weakness to IVIg (Gamunex®, Talecris Biotherapeutics) 1 g/kg/day for 2 consecutive days or PLEX (Caridian Spectra) 1.0 plasma volume exchanges for 5 exchanges. The patients were evaluated at day 14 after treatment for the primary efficacy parameter of change in QMGS and secondary clinical and electrophysiologic parameters and were followed for a total of 60 days. RESULTS Both IVIg and PLEX reduced the QMGS, and IVIg was comparable to PLEX in efficacy. The dropout rate was the same for both treatment arms and both treatments were well-tolerated. The presence of acetylcholine receptor antibodies and greater baseline disease severity predicted a better response to therapy. The postintervention status revealed that the same proportion of patients improved with treatment: 69% on IVIg and 65% on PLEX. The duration of improvement was similar with both treatments. CONCLUSIONS IVIg has comparable efficacy to PLEX in the treatment of patients with moderate to severe MG. Both treatments are well-tolerated, and the duration of effect is comparable. Either treatment may be offered to patients depending on availability of resources. CLASSIFICATION OF EVIDENCE This study provides Class I evidence that IVIg and PLEX have comparable efficacy and are equally tolerated in adult patients with moderate to severe MG within 2 weeks of treatment.
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Affiliation(s)
- D Barth
- Department of Pathology, University Health Network, Toronto General Hospital, Toronto, Canada
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Ng E, Vega-Saenz de Miera E, Tan B, Gai W, Goldberg JD, Osman I, Berwick M, Lazovich D, Polsky D. A population-based, case-control study of MC1R variants, ultraviolet light exposure, and melanoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.8504] [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: 11/20/2022] Open
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Glenzer SH, MacGowan BJ, Meezan NB, Adams PA, Alfonso JB, Alger ET, Alherz Z, Alvarez LF, Alvarez SS, Amick PV, Andersson KS, Andrews SD, Antonini GJ, Arnold PA, Atkinson DP, Auyang L, Azevedo SG, Balaoing BNM, Baltz JA, Barbosa F, Bardsley GW, Barker DA, Barnes AI, Baron A, Beeler RG, Beeman BV, Belk LR, Bell JC, Bell PM, Berger RL, Bergonia MA, Bernardez LJ, Berzins LV, Bettenhausen RC, Bezerides L, Bhandarkar SD, Bishop CL, Bond EJ, Bopp DR, Borgman JA, Bower JR, Bowers GA, Bowers MW, Boyle DT, Bradley DK, Bragg JL, Braucht J, Brinkerhoff DL, Browning DF, Brunton GK, Burkhart SC, Burns SR, Burns KE, Burr B, Burrows LM, Butlin RK, Cahayag NJ, Callahan DA, Cardinale PS, Carey RW, Carlson JW, Casey AD, Castro C, Celeste JR, Chakicherla AY, Chambers FW, Chan C, Chandrasekaran H, Chang C, Chapman RF, Charron K, Chen Y, Christensen MJ, Churby AJ, Clancy TJ, Cline BD, Clowdus LC, Cocherell DG, Coffield FE, Cohen SJ, Costa RL, Cox JR, Curnow GM, Dailey MJ, Danforth PM, Darbee R, Datte PS, Davis JA, Deis GA, Demaret RD, Dewald EL, Di Nicola P, Di Nicola JM, Divol L, Dixit S, Dobson DB, Doppner T, Driscoll JD, Dugorepec J, Duncan JJ, Dupuy PC, Dzenitis EG, Eckart MJ, Edson SL, Edwards GJ, Edwards MJ, Edwards OD, Edwards PW, Ellefson JC, Ellerbee CH, Erbert GV, Estes CM, Fabyan WJ, Fallejo RN, Fedorov M, Felker B, Fink JT, Finney MD, Finnie LF, Fischer MJ, Fisher JM, Fishler BT, Florio JW, Forsman A, Foxworthy CB, Franks RM, Frazier T, Frieder G, Fung T, Gawinski GN, Gibson CR, Giraldez E, Glenn SM, Golick BP, Gonzales H, Gonzales SA, Gonzalez MJ, Griffin KL, Grippen J, Gross SM, Gschweng PH, Gururangan G, Gu K, Haan SW, Hahn SR, Haid BJ, Hamblen JE, Hammel BA, Hamza AV, Hardy DL, Hart DR, Hartley RG, Haynam CA, Heestand GM, Hermann MR, Hermes GL, Hey DS, Hibbard RL, Hicks DG, Hinkel DE, Hipple DL, Hitchcock JD, Hodtwalker DL, Holder JP, Hollis JD, Holtmeier GM, Huber SR, Huey AW, Hulsey DN, Hunter SL, Huppler TR, Hutton MS, Izumi N, Jackson JL, Jackson MA, Jancaitis KS, Jedlovec DR, Johnson B, Johnson MC, Johnson T, Johnston MP, Jones OS, Kalantar DH, Kamperschroer JH, Kauffman RL, Keating GA, Kegelmeyer LM, Kenitzer SL, Kimbrough JR, King K, Kirkwood RK, Klingmann JL, Knittel KM, Kohut TR, Koka KG, Kramer SW, Krammen JE, Krauter KG, Krauter GW, Krieger EK, Kroll JJ, La Fortune KN, Lagin LJ, Lakamsani VK, Landen OL, Lane SW, Langdon AB, Langer SH, Lao N, Larson DW, Latray D, Lau GT, Le Pape S, Lechleiter BL, Lee Y, Lee TL, Li J, Liebman JA, Lindl JD, Locke SF, Loey HK, London RA, Lopez FJ, Lord DM, Lowe-Webb RR, Lown JG, Ludwigsen AP, Lum NW, Lyons RR, Ma T, MacKinnon AJ, Magat MD, Maloy DT, Malsbury TN, Markham G, Marquez RM, Marsh AA, Marshall CD, Marshall SR, Maslennikov IL, Mathisen DG, Mauger GJ, Mauvais MY, McBride JA, McCarville T, McCloud JB, McGrew A, McHale B, MacPhee AG, Meeker JF, Merill JS, Mertens EP, Michel PA, Miller MG, Mills T, Milovich JL, Miramontes R, Montesanti RC, Montoya MM, Moody J, Moody JD, Moreno KA, Morris J, Morriston KM, Nelson JR, Neto M, Neumann JD, Ng E, Ngo QM, Olejniczak BL, Olson RE, Orsi NL, Owens MW, Padilla EH, Pannell TM, Parham TG, Patterson RW, Pavel G, Prasad RR, Pendlton D, Penko FA, Pepmeier BL, Petersen DE, Phillips TW, Pigg D, Piston KW, Pletcher KD, Powell CL, Radousky HB, Raimondi BS, Ralph JE, Rampke RL, Reed RK, Reid WA, Rekow VV, Reynolds JL, Rhodes JJ, Richardson MJ, Rinnert RJ, Riordan BP, Rivenes AS, Rivera AT, Roberts CJ, Robinson JA, Robinson RB, Robison SR, Rodriguez OR, Rogers SP, Rosen MD, Ross GF, Runkel M, Runtal AS, Sacks RA, Sailors SF, Salmon JT, Salmonson JD, Saunders RL, Schaffer JR, Schindler TM, Schmitt MJ, Schneider MB, Segraves KS, Shaw MJ, Sheldrick ME, Shelton RT, Shiflett MK, Shiromizu SJ, Shor M, Silva LL, Silva SA, Skulina KM, Smauley DA, Smith BE, Smith LK, Solomon AL, Sommer S, Soto JG, Spafford NI, Speck DE, Springer PT, Stadermann M, Stanley F, Stone TG, Stout EA, Stratton PL, Strausser RJ, Suter LJ, Sweet W, Swisher MF, Tappero JD, Tassano JB, Taylor JS, Tekle EA, Thai C, Thomas CA, Thomas A, Throop AL, Tietbohl GL, Tillman JM, Town RPJ, Townsend SL, Tribbey KL, Trummer D, Truong J, Vaher J, Valadez M, Van Arsdall P, Van Prooyen AJ, Vergel de Dios EO, Vergino MD, Vernon SP, Vickers JL, Villanueva GT, Vitalich MA, Vonhof SA, Wade FE, Wallace RJ, Warren CT, Warrick AL, Watkins J, Weaver S, Wegner PJ, Weingart MA, Wen J, White KS, Whitman PK, Widmann K, Widmayer CC, Wilhelmsen K, Williams EA, Williams WH, Willis L, Wilson EF, Wilson BA, Witte MC, Work K, Yang PS, Young BK, Youngblood KP, Zacharias RA, Zaleski T, Zapata PG, Zhang H, Zielinski JS, Kline JL, Kyrala GA, Niemann C, Kilkenny JD, Nikroo A, Van Wonterghem BM, Atherton LJ, Moses EI. Demonstration of ignition radiation temperatures in indirect-drive inertial confinement fusion hohlraums. Phys Rev Lett 2011; 106:085004. [PMID: 21405580 DOI: 10.1103/physrevlett.106.085004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Indexed: 05/30/2023]
Abstract
We demonstrate the hohlraum radiation temperature and symmetry required for ignition-scale inertial confinement fusion capsule implosions. Cryogenic gas-filled hohlraums with 2.2 mm-diameter capsules are heated with unprecedented laser energies of 1.2 MJ delivered by 192 ultraviolet laser beams on the National Ignition Facility. Laser backscatter measurements show that these hohlraums absorb 87% to 91% of the incident laser power resulting in peak radiation temperatures of T(RAD)=300 eV and a symmetric implosion to a 100 μm diameter hot core.
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Affiliation(s)
- S H Glenzer
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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Ng E, Ang S, Li H, Lim K, Choo S, Ngeow JY, Toh H, Chow PK, Tan M. The Singapore liver cancer recurrence (SLICER) score for relapse prediction in patients with resected hepatocellular carcinoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.169] [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: 11/20/2022] Open
Abstract
169 Background: Hepatocellular carcinoma (HCC) is a common worldwide cancer associated with extremely poor survival, with surgery the only option for cure in patients with localized disease. Current prognostic models for HCC are algorithms developed on datasets of mainly patients with metastatic or unresectable cancer, and may be less relevant to resectable HCC. Nomograms provide individualized outcome estimates. We constructed a postoperative nomogram, the Singapore liver cancer recurrence (SLICER) score, to predict outcomes of HCC patients who have undergone surgical resection. Methods: Records for Singaporean patients undergoing first-line curative surgery for localized HCC in one institution between 1992 and 2007 were retrospectively reviewed (n=405). Freedom from relapse (FFR) was the primary outcome measure. An outcome-blinded modeling strategy including clustering, data reduction and transformation, was used. Calibration was tested with bootstrapping (n=200). We compared the performance of this model with other alternative models including CLIP, CUPI, BCLC, and Okuda scores using c-indices and likelihood analysis. Results: A nomogram (SLICER score) predicting FFR was designed, incorporating vascular invasion, tumor size, multifocality, ECOG status, pre-operative AFP, Childs-Pugh score and cirrhosis. Bootstrap estimates show good calibration at 1, 2, 3, and 5 years postsurgery Comparison of the SLICER score with alternative prognostic models shows superior performance (Table). Conclusions: The SLICER score enables individualized relapse predictions for patients following curative resection of localized HCC. It permits optimal patient selection for adjuvant therapy trials, biomarker development, and individual counseling. [Table: see text] No significant financial relationships to disclose.
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Affiliation(s)
- E. Ng
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - S. Ang
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - H. Li
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - K. Lim
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - S. Choo
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - J. Y. Ngeow
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - H. Toh
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - P. K. Chow
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
| | - M. Tan
- Singapore General Hospital, Singapore, Singapore; Department of Pathology, Singapore General Hospital, Singapore, Singapore; National Cancer Centre Singapore, Singapore, Singapore
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Abstract
Fluoronavigation is an image-guided technology which uses intra-operative fluoroscopic images taken under a real-time tracking system and registration to guide surgical procedures. With the skeleton and the instrument registered, guidance under an optical tracking system is possible, allowing fixation of the fracture and insertion of an implant. This technology helps to minimise exposure to x-rays, providing multiplanar views for monitoring and accurate positioning of implants. It allows real-time interactive quantitative data for decision-making and expands the application of minimally invasive surgery. In orthopaedic trauma its use can be further enhanced by combining newer imaging technologies such as intra-operative three-dimensional fluoroscopy and optical image guidance, new advances in software for fracture reduction, and new tracking mechanisms using electromagnetic technology. The major obstacles for general and wider applications are the inability to track individual fracture fragments, no navigated real-time fracture reduction, and the lack of an objective assessment method for cost-effectiveness. We believe that its application will go beyond the operating theatre and cover all aspects of patient management, from pre-operative planning to intra-operative guidance and postoperative rehabilitation.
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Affiliation(s)
- K S Leung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, 5/F, Clinical Sciences Building, Prince of Wales Hospital, Shatin, Hong Kong.
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Abstract
Fluoronavigation is an image-guided technology which uses intra-operative fluoroscopic images taken under a real-time tracking system and registration to guide surgical procedures. With the skeleton and the instrument registered, guidance under an optical tracking system is possible, allowing fixation of the fracture and insertion of an implant. This technology helps to minimise exposure to x-rays, providing multiplanar views for monitoring and accurate positioning of implants. It allows real-time interactive quantitative data for decision-making and expands the application of minimally invasive surgery. In orthopaedic trauma its use can be further enhanced by combining newer imaging technologies such as intra-operative three-dimensional fluoroscopy and optical image guidance, new advances in software for fracture reduction, and new tracking mechanisms using electromagnetic technology. The major obstacles for general and wider applications are the inability to track individual fracture fragments, no navigated real-time fracture reduction, and the lack of an objective assessment method for cost-effectiveness. We believe that its application will go beyond the operating theatre and cover all aspects of patient management, from pre-operative planning to intra-operative guidance and postoperative rehabilitation.
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Affiliation(s)
- K. S. Leung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, 5/F, Clinical Sciences Building, Prince of Wales Hospital, Shatin, Hong Kong
| | - N. Tang
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, 5/F, Clinical Sciences Building, Prince of Wales Hospital, Shatin, Hong Kong
| | - L. W. H. Cheung
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, 5/F, Clinical Sciences Building, Prince of Wales Hospital, Shatin, Hong Kong
| | - E. Ng
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, 5/F, Clinical Sciences Building, Prince of Wales Hospital, Shatin, Hong Kong
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Fujii R, Fujita S, Waseda T, Oka Y, Takagi H, Tomizawa H, Sasagawa T, Makinoda S, Cavagna M, Braga DPAF, Figueira RCS, Aoki T, Maldonado LGL, Iaconelli A, Borges E, Prabhakar S, Dittrich R, Beckmann MW, Hoffmann I, Mueller A, Kjotrod S, Carlsen SM, Rasmussen PE, Holst-Larsen T, Mellembakken J, Thurin-Kjellberg A, Haapaniemi Kouru K, Morin Papunen L, Humaidan P, Sunde A, von During V, Pappalardo S, Valeri C, Crescenzi F, Manna C, Sallam HN, Polec A, Raki M, Tanbo T, Abyholm T, Fedorcsak P, Tabanelli C, Ferraretti AP, Feliciani E, Magli MC, Fasolino C, Gianaroli L, Wang T, Feng C, Song Y, Dong MY, Sheng JZ, Huang HF, Sayyah Melli M, Kazemi-shishvan M, Snajderova M, Zemkova D, Pechova M, Teslik L, Lanska V, Ketel I, Serne E, Stehouwer C, Korsen T, Hompes P, Smulders Y, Voorstemans L, Homburg R, Lambalk C, Bellver J, Martinez-Conejero JA, Pellicer A, Labarta E, Alama P, Melo MAB, Horcajadas JA, Agirregoitia N, Peralta L, Mendoza R, Exposito A, Matorras R, Agirregoitia E, Ajina M, Chaouache N, Gaddas M, Souissi A, Tabka Z, Saad A, Zaouali-Ajina M, Zbidi A, Eguchi N, Jinno M, Watanabe A, Hirohama J, Hatakeyama N, Choi YM, Kim JJ, Kim DH, Yoon SH, Ku SY, Kim SH, Kim JG, Lee KS, Moon SY, Hirohama J, Jinno M, Watanabe A, Eguchi N, Hatakeyama N, Jinno M, Watanabe A, Hirohama J, Eguchi N, Hatakeyama N, Xiong Y, Liang X, Li Y, Yang X, Wei L, Makinoda S, Tomizawa H, Fujita S, Takagi H, Oka Y, Waseda T, Sasagawa T, Fujii R, Utsunomiya T, Chu S, Li P, Akarsu S, Dirican EK, Akin KO, Kormaz C, Goktolga U, Ceyhan ST, Kara C, Nadamoto K, Tarui S, Ida M, Sugihara K, Haruki A, Hukuda A, Morimoto Y, Albu A, Albu D, Sandu L, Kong G, Cheung L, Lok I, Pinto A, Teixeira L, Figueiredo H, Pires I, Silva Carvalho JL, Pereira ML, Faut M, de Zuniga I, Colaci D, Barrios E, Oubina A, Terrado Gil G, Motta A, Colaci D, de Zuniga I, Horton M, Faut M, Sobral F, Gomez Pena M, Motta A, Gleicher N, Barad DH, Li YP, Zhao HC, Spaczynski RZ, Guzik P, Banaszewska B, Krauze T, Wykretowicz A, Wysocki H, Pawelczyk L, Sarikaya E, Gulerman C, Cicek N, Mollamahmutoglu L, Venetis CA, Kolibianakis EM, Toulis K, Goulis D, Loutradi K, Chatzimeletiou K, Papadimas I, Bontis I, Tarlatzis BC, Schultze-Mosgau A, Griesinger G, Schoepper B, Cordes T, Diedrich K, Al-Hasani S, Gomez R, Jovanovic V, Sauer CM, Shawber CJ, Sauer MV, Kitajewski J, Zimmermann RC, Bungum L, Jacobsson AK, Rosen F, Becker C, Andersen CY, Guner N, Giwercman A, Kiapekou E, Zapanti E, Boukelatou D, Mavreli T, Bletsa R, Stefanidis K, Drakakis P, Mastorakos G, Loutradis D, Malhotra N, Sharma V, Kumar S, Roy KK, Sharma JB, Ferraretti A, Gianaroli L, Magli MC, Crippa A, Stanghellini I, Robles F, Serdynska-Szuster M, Spaczynski RZ, Banaszewska B, Pawelczyk L, Kristensen SL, Ernst E, Toft G, Olsen SF, Bonde JP, Vested A, Ramlau-Hansen CH, Wang FF, Qu F, Ding GL, Huang HF, Gallot V, Genro V, Roux I, Scheffer JB, Frydman R, Fanchin R, Kanta Goswami S, Banerjee S, Chakravarty BN, Kabir SN, Seeber BE, Morandell E, Kurzthaler D, Wildt L, Dieplinger H, Tutuncu L, Bodur S, Dundar O, Ron - El R, Seger R, Komarovsky D, Kasterstein E, Komsky A, Maslansky B, Strassburger D, Ben-Ami I, Zhao XM, Ni RM, Lin L, Dong M, Tu CH, He ZH, Yang DZ, Karamalegos C, Polidoropoulos N, Papanikopoulos C, Stefanis P, Argyrou M, Doriza S, Sisi V, Moschopoulou M, Karagianni T, Mentorou C, Economou K, Davies S, Mastrominas M, Gougeon A, De Los Santos MJ, Garcia-Laez V, Martinez-Conejero JA, Horcajadas JA, Esteban F, Labarta E, Crespo J, Pellicer A, Li HWR, Anderson RA, Yeung WSB, Ho PC, Ng EHY, Yang HI, Lee KE, Seo SK, Kim HY, Cho SH, Choi YS, Lee BS, Park KH, Cho DJ, Hart R, Doherty D, Mori T, Hickey M, Sloboda D, Norman R, Huang RC, Beilin L, Freiesleben N, Lossl K, Johannsen TH, Loft A, Bangsboll S, Hougaard D, Friis-Hansen L, Christiansen M, Nyboe Andersen A, Thum MY, Abdalla H, Martinez-Salazar J, De la Fuente G, Kohls G, Pellicer A, Garcia Velasco JA, Yasmin E, Kukreja S, Barth J, Balen AH, Esra T, Var T, Citil A, Dogan M, Cicek N, Messini CI, Dafopoulos K, Chalvatzas N, Georgoulias P, Anifandis G, Messinis IE, Celik O, Hascalik S, Celik N, Sahin I, Aydin S, Hanna CW, Bretherick KL, Liu CC, Stephenson MD, Robinson WP, Louwers YV, Goodarzi MO, Taylor KD, Jones MR, Cui J, Kwon S, Chen YDI, Guo X, Stolk L, Uitterlinden AG, Laven JSE, Azziz R, Navaratnarajah R, Grun B, Sinclair J, Dafou D, Gayther S, Timms JF, Hardiman PJ, Ye Y, Wu R, Ou J, Kim SD, Jee BC, Lee JY, Suh CS, Kim SH, Jung JH, Moon SY, Opmeer BC, Broeze KA, Coppus SF, Collins JA, Den Hartog JE, Land JA, Van der Linden PJ, Marianowski P, Ng E, Van der Steeg JW, Steures P, Strandell A, Mol BW, Tarlatzi TB, Kyrou D, Mertzanidou A, Fatemi HM, Tarlatzis BC, Devroey P, Batenburg TE, Konig TE, Overbeek A, Hompes P, Schats R, Lambalk CB, Carone D, Vizziello G, Vitti A, Chiappetta R, Topcu HO, Yuksel B, Islimye M, Karakaya J, ozat M, Batioglu S, Kuchenbecker WK, Groen H, Bolster JH, van Asselt S, Wolffenbuettel BH, Land JA, Hoek A, Wu Y, Pan H, Chen X, Wang T, Huang H, Zavos A, Dafopoulos K, Georgoulias P, Messini CI, Verikouki C, Messinis IE, Van Os L, Vink-Ranti CQJ, Rijnders PM, Tucker KE, Jansen CAM, Lucco F, Pozzobon C, Lara E, Galliano D, Pellicer A, Ballesteros A, Ghoshdastidar B, Maity SP, Ghoshdastidar B, Ghoshdastidar S, Luna M, Vela G, Sandler B, Barritt J, Flisser ED, Copperman AB, Nogueira D, Prat L, Degoy J, Bonald F, Montagut J, Ghoshdastidar S, Maity S, Ghoshdastidar B, Chen S, Chen X, Luo C, Zhen H, Shi X, Wu F, Ni Y, Merdassi G, Chaker A, Kacem K, Benmeftah M, Fourati S, Wahabi D, Zhioua F, Zhioua A, Saini P, Saini A, Sugiyama R, Nakagawa K, Nishi Y, Jyuen H, Kuribayashi Y, Sugiyama R, Inoue M, Jancar N, Vrtacnik Bokal E, Virant-Klun I, Lee JH, Kim SG, Cha EM, Park IH, Lee KH, Dahdouh EM, Desrosiers P, St-Michel P, Villeneuve M, Fontaine JY, Granger L, Ramon O, Matorras R, Burgos J, Abanto E, Gonzalez M, Mugica J, Corcostegui B, Exposito A, Tal J, Ziskind G, Ohel G, Paltieli Y, Paz G, Lewit N, Sendel H, Khouri S, Calderon I, van Gelder P, Al-Inany HG, Antaki R, Dean N, Lapensee L, Racicot M, Menard S, Kadoch I, Meylaerts LJ, Dreesen L, Vandersteen M, Neumann C, Zollner U, Kato K, Segawa T, Kawachiya S, Okuno T, Kobayashi T, Takehara Y, Kato O, Jayaprakasan K, Nardo L, Hopkisson J, Campbell B, Raine-Fenning N. Posters * Reproductive Endocrinology (i.e. PCOS, Menarche, Menopause etc.). Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ng E, Liew Y, Ding Y, Koh L, Jin J, Hsu L. Patients with hematological malignancies who are prescribed quinolone prophylaxis postchemotherapy in a hospital with high gram-negative quinolone resistance are at a higher risk for febrile neutropenia. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.1578] [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: 11/29/2022] Open
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EtehadTavakol M, Lucas C, Sadri S, Ng E. Analysis of Breast Thermography Using Fractal Dimension to Establish Possible Difference between Malignant and Benign Patterns. Journal of Healthcare Engineering 2010. [DOI: 10.1260/2040-2295.1.1.27] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Mills G, Cleugh H, Emmanuel R, Endlicher W, Erell E, McGranahan G, Ng E, Nickson A, Rosenthal J, Steemer K. Climate Information for Improved Planning and Management of Mega Cities (Needs Perspective). ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proenv.2010.09.015] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ng E, Kwong A, Tsang W, Leung C, Wong C, Kwok T, Ma E. Role of miR-143 Regulating DNA Methyltransferases 3A in Breast Cancer. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-3148] [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: 11/16/2022]
Abstract
Abstract
Background and Aims: MicroRNAs (miRNAs) are 19-25-nucleotides regulatory non-protein-coding RNA molecules that regulate the expressions of a wide variety of genes including some involved in cancer development. In particular, decreased expression of miR-143 has been reported in various human cancers including colorectal cancer and B-cell lymphomas. The aim of this study was to elucidate the role of miR-143 dysregulation in breast cancer.Methods: Expression levels of human mature microRNAs (miRNAs) were compared with paired breast carcinomas and adjacent normal tissues by TaqMan real-time PCR based expression arrays. Decreased expression of miR-143 was further confirmed in breast cancer cell lines and paired breast tumors and normal adjacent tissues by qRT-PCR. Potential targets of miR-143 were defined. The functional effect of miR-143 and its targets was performed in human breast cancer cell lines to confirm target association.Results: Down-regulation of miR-143 was verified in both human breast cancer cell lines and 80% (12/15) of breast tumors (P < 0.001). DNA methyltranferase 3A (DNMT3A), one of a key enzyme involved in DNA methylation, was defined as a potential target of miR-143 by in-silico analysis. Overexpression of miR-143 in breast cancer cell lines down-regulated expression of DNMT3A, decreased tumor cell growth by MTT assay and soft agar colony formation assay. DNMT3A was demonstrated to be a direct target of miR-143 by luciferase reporter assay. Inverse correlation between DNMT3A protein and miR-143 was found in tumor and normal breast tissues.Conclusions: In this study, we show for the first time in breast cancer that miR-143 specifically targeted DNMT3A and the expression of miR-143 was inversely correlated with DNMT3A expression. Our findings demonstrated that down-regulation of miR-143 and up-regulation of DNMT3A are significant changes in breast tumors. These findings indicate a tumor suppressive role of miR-143 in epigenetic aberration of breast cancer.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 3148.
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Affiliation(s)
- E. Ng
- 1The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - A. Kwong
- 1The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - W. Tsang
- 2The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - C. Leung
- 1The University of Hong Kong, Hong Kong Special Administrative Region of China
| | - C. Wong
- 3Hong Kong Sanatorium & Hospital, Hong Kong Special Administrative Region of China
| | - T. Kwok
- 2The Chinese University of Hong Kong, Hong Kong Special Administrative Region of China
| | - E. Ma
- 3Hong Kong Sanatorium & Hospital, Hong Kong Special Administrative Region of China
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Grelewicz Z, Suzuki K, Kohlbrenner R, Obajuluwa A, Ng E, Tompkins R, Epstein M, Hori M, Baron R. SU-FF-I-03: Computer-Aided Diagnostic Scheme for Detection of Hepatocellular Carcinoma in Contrast-Enhanced Hepatic CT: Preliminary Results. Med Phys 2009. [DOI: 10.1118/1.3181122] [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: 11/07/2022] Open
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Tang E, Kwong A, Wong C, Law F, Wong C, Ng E, Ma E, Ford JM. Novel de novo BRCA1 mutation in a woman with early onset breast cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e22143] [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: 11/20/2022] Open
Abstract
e22143 Background: Germline mutations in BRCA1/2 account for a significant portion of hereditary breast/ovarian cancer. Mutation carriers usually have a family history of breast/ovarian cancer or early onset disease. Rarely, germline mutations are found only in the probands but not in any family members. Such de novo mutations have been reported in diseases such as hemophilia A, thalassaemia and familial adenomatous polyposis. De novo mutations in the BRCA1 or BRCA2 genes are rare and the few reported have been in BRCA2. Here, we describe de novo as well as novel mutation of the BRCA1 gene in a breast cancer patient. Methods: Blood DNA samples from a 30 year old Chinese woman with breast cancer and no family history of cancer was tested for a BRCA1/2 mutation by full gene sequencing and Multiple Ligation-dependent Probe Amplification (MLPA). Family members were analyzed for the same mutation. Paternity was determined by a set of highly polymorphic short tandem repeat (STR) markers. Results: Full gene sequencing found no deleterious mutation. MLPA revealed a large deletion of exons 1 to 12 of BRCA1 in the proband. MLPA performed on 5 family members: proband's mother and father (who were 1st degree relative- cousins), stepmother (mother's biological sister), 2 sisters (1, same parents; 1, same father and stepmother) found no similar deletion. By using a set of highly polymorphic STR markers, the proband's father and mother were confirmed to be her biological parents. Conclusions: We report a novel de novo BRCA1 deletion mutation encompassing exons 1 - 12 in a Chinese breast cancer patient of early onset with no family history. Identification of this large deletion confirms the importance of pursuing rearrangement testing if full gene sequencing fails to detect a point mutation or short insertion deletion. The mutation found in this study is de novo. This may simply be a random mutation event which occurred in the parents' germ cells during their lifetime which passed onto one of their offspring or maybe a result of gene inversion or splicing deficiency. The relations of such mutations with consanguineous marriage cannot be ruled out. Mutation screening is important in early onset breast cancer patients even if there is no family history. No significant financial relationships to disclose.
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Affiliation(s)
- E. Tang
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
| | - A. Kwong
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
| | - C. Wong
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
| | - F. Law
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
| | - C. Wong
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
| | - E. Ng
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
| | - E. Ma
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
| | - J. M. Ford
- The University of Hong Kong, Hong Kong, China; Hong Kong Sanatorium and Hospital, Hong Kong, China; Stanford University School of Medicine, Stanford, CA
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