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Burger A, Smit MI, van Dyk D, Reed AR, Dyer RA, Hofmeyr R. Predictors of difficult tracheal intubation during general anaesthesia: an analysis of an obstetric airway management registry. Southern African Journal of Anaesthesia and Analgesia 2022. [DOI: 10.36303/sajaa.2022.28.5.2829] [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: 12/12/2022]
Affiliation(s)
- A Burger
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town and Groote Schuur Hospital,
South Africa
| | - MI Smit
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town and Groote Schuur Hospital,
South Africa
| | - D van Dyk
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town and Groote Schuur Hospital,
South Africa
| | - AR Reed
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town and Groote Schuur Hospital,
South Africa
| | - RA Dyer
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town and Groote Schuur Hospital,
South Africa
| | - R Hofmeyr
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town and Groote Schuur Hospital,
South Africa
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Corbane C, Politis P, Kempeneers P, Simonetti D, Soille P, Burger A, Pesaresi M, Sabo F, Syrris V, Kemper T. A global cloud free pixel- based image composite from Sentinel-2 data. Data Brief 2020; 31:105737. [PMID: 32490091 PMCID: PMC7262415 DOI: 10.1016/j.dib.2020.105737] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 11/29/2022] Open
Abstract
Large-scale land cover classification from satellite imagery is still a challenge due to the big volume of data to be processed, to persistent cloud-cover in cloud-prone areas as well as seasonal artefacts that affect spatial homogeneity. Sentinel-2 times series from Copernicus Earth Observation program offer a great potential for fine scale land cover mapping thanks to high spatial and temporal resolutions, with a decametric resolution and five-day repeat time. However, the selection of best available scenes, their download together with the requirements in terms of storage and computing resources pose restrictions for large-scale land cover mapping. The dataset presented in this paper corresponds to global cloud-free pixel based composite created from the Sentinel-2 data archive (Level L1C) available in Google Earth Engine for the period January 2017- December 2018. The methodology used for generating the image composite is described and the metadata associated with the 10 m resolution dataset is presented. The data with a total volume of 15 TB is stored on the Big Data platform of the Joint Research Centre. It can be downloaded per UTM grid zone, loaded into GIS clients and displayed easily thanks to pre-computed overviews.
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Affiliation(s)
- C. Corbane
- European Commission, Joint Research Centre
| | - P. Politis
- Arhs Developments S.A., 4370, Belvaux, Luxembourg
| | | | | | - P. Soille
- European Commission, Joint Research Centre
| | - A. Burger
- European Commission, Joint Research Centre
| | | | - F. Sabo
- Arhs Developments S.A., 4370, Belvaux, Luxembourg
| | - V. Syrris
- European Commission, Joint Research Centre
| | - T. Kemper
- European Commission, Joint Research Centre
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Rabie MA, Rankin A, Burger A, Youssef MMG. The effect of Oncotype DX ® on adjuvant chemotherapy treatment decisions in early breast cancer. Ann R Coll Surg Engl 2019; 101:596-601. [PMID: 31219316 PMCID: PMC6818070 DOI: 10.1308/rcsann.2019.0096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2018] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION The aim of this study was to objectively establish the value of the Oncotype DX® (ODX) gene assay in adjuvant treatment decisions for intermediate risk patients with early, oestrogen receptor positive, human epidermal growth factor receptor 2 negative, lymph node negative breast cancer at a district general hospital. METHODS All patients who underwent surgery for breast cancer between January 2015 and December 2017 at Queen Elizabeth Hospital in King's Lynn were considered for inclusion in the study. Those who did not meet the criteria for ODX referral were excluded. Patients were divided into two cohorts based on whether they were treated before or after the introduction of ODX testing in this hospital (June 2016): the pre-ODX and post-ODX groups. The primary outcome was the percentage of patients for whom adjuvant chemotherapy (AC) was recommended in each group. RESULTS Of the 462 patients who underwent surgery during the study period, 43 met the eligibility criteria for ODX testing: 18 in the pre-ODX group and 25 in the post-ODX group. AC was recommended and given to 11 (61%) of the patients in the pre-ODX group. In the post-ODX group, AC was recommended for seven patients with an ODX Recurrence Score® (RS) of >25; this was given to six patients (24%). One patient (with a RS of 26) declined AC. ODX testing led to a significant reduction in the proportion of patients who received AC (p=0.015). CONCLUSIONS In intermediate risk patients with breast cancer, the results of the ODX gene assay may change the decision for adjuvant treatment. It represents a valuable tool to assist patients' and clinicians' decision making regarding adjuvant chemotherapy.
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Affiliation(s)
- MA Rabie
- Department of General Surgery, Ain Shams University, Cairo, Egypt
- Queen Elizabeth Hospital King’s Lynn NHS Foundation Trust, UK
| | - A Rankin
- Queen Elizabeth Hospital King’s Lynn NHS Foundation Trust, UK
| | - A Burger
- Queen Elizabeth Hospital King’s Lynn NHS Foundation Trust, UK
| | - MMG Youssef
- Surgical Oncology department, National Cancer Institute, Cairo, Egypt
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Burger A, Huenges B, Köster U, Thomas M, Woestmann B, Lieverscheidt H, Rusche HH, Schäfer T. 15 years of the model study course in medicine at the Ruhr University Bochum. GMS J Med Educ 2019; 36:Doc59. [PMID: 31815169 PMCID: PMC6883250 DOI: 10.3205/zma001267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 07/09/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
The Faculty of Medicine of the Ruhr University Bochum (RUB) introduced a model study course in medicine (MSM) in the winter semester 2003. For 9 consecutive years, 42 out of 280 first year students at the Ruhr University Bochum had the opportunity to begin their studies in the model study course in medicine. The places were allocated amongst the applicants internally through a raffle. The MSM was consistently problem-, practice- and patient-oriented and largely did away with lectures, broke with the distinction between a pre-clinical and clinical phase and tested basic knowledge in equivalent integrated exams focusing on clinical application. Following a comparative evaluation of the standard degree course (RSM) and the MSM, the faculty merged the two degree courses into the Integrated Reformed Medical Curriculum (IRMC), which has been on offer since 2013 and is characterized by a topic-oriented hybrid curriculum. This article examines experiences relating to the origins, conception and introduction of the MSM.
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Affiliation(s)
- A. Burger
- Ruhr University Bochum, Zentrum für Medizinische Lehre, Bochum, Germany
| | - B. Huenges
- Ruhr University Bochum, Abteilung für Allgemeinmedizin, Bochum, Germany
| | - U. Köster
- Ruhr University Bochum, Zentrum für Medizinische Lehre, Bochum, Germany
| | - M. Thomas
- Ruhr University Bochum, Zentrum für Medizinische Lehre, Bochum, Germany
| | - B. Woestmann
- Ruhr University Bochum, Abteilung für Allgemeinmedizin, Bochum, Germany
| | - H. Lieverscheidt
- Ruhr University Bochum, Zentrum für Medizinische Lehre, Bochum, Germany
| | - H. H. Rusche
- Ruhr University Bochum, Zentrum für Medizinische Lehre, Bochum, Germany
- Ruhr University Bochum, Abteilung für Allgemeinmedizin, Bochum, Germany
| | - T. Schäfer
- Ruhr University Bochum, Zentrum für Medizinische Lehre, Bochum, Germany
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Mitaka H, Seijo L, Motohashi K, Nakai M, Burger A. Posterior reversible encephalopathy syndrome induced by red blood cell transfusion. QJM 2019; 112:617-618. [PMID: 31127941 DOI: 10.1093/qjmed/hcz126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Indexed: 11/14/2022] Open
Affiliation(s)
- H Mitaka
- From the Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine, First Avenue and 16th Street, Baird Hall 20th Floor, New York, NY, USA
| | - L Seijo
- From the Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine, First Avenue and 16th Street, Baird Hall 20th Floor, New York, NY, USA
| | - K Motohashi
- Department of General Internal Medicine, Nerima Hikarigaoka Hospital, 2-11-1, Hikarigaoka, Nerima, Tokyo, Japan
| | - M Nakai
- Department of General Internal Medicine, Nerima Hikarigaoka Hospital, 2-11-1, Hikarigaoka, Nerima, Tokyo, Japan
| | - A Burger
- From the Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine, First Avenue and 16th Street, Baird Hall 20th Floor, New York, NY, USA
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Abstract
Aims Our intention was to investigate if the highly porous biological fixation surfaces of a new 3D-printed total knee arthroplasty (TKA) achieved adequate fixation of the tibial and patellar components to the underlying bone. Patients and Methods A total of 29 patients undergoing primary TKA consented to participate in this prospective cohort study. All patients received a highly porous tibial baseplate and metal-backed patella. Patient-reported outcomes measures were recorded and implant migration was assessed using radiostereometric analysis. Results Patient function significantly improved by three months postoperatively (p < 0.001). Mean difference in maximum total point motion between 12 and 24 months was 0.021 mm (-0.265 to 0.572) for the tibial implant and 0.089 mm (-0.337 to 0.758) for the patellar implant. The rate of tibial and patellar migration was largest over the first six postoperative weeks, with no changes in mean tibia migration occurring after six months, and no changes in mean patellar migration occurring after six weeks. One patellar component showed a rapid rate of migration between 12 and 24 months. Conclusion Biological fixation appears to occur reliably on the highly porous implant surface of the tibial baseplate and metal-backed patellar component. Rapid migration after 12 months was measured for one patellar component. Further investigation is required to assess the long-term stability of the 3D-printed components and to determine if the high-migrating components achieve fixation. Cite this article: Bone Joint J 2019;101-B(7 Supple C):40–47
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Affiliation(s)
- S. Sporer
- Rush University Medical Centre, Chicago, Illinois, USA
| | | | - A. Burger
- Halifax Biomedical Inc., Mabou, Canada
| | - M. Moric
- Rush University Medical Centre, Department of Anesthesiology, Chicago, Illinois, USA
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Burger A, Hodkinson PW, Wallis LA. Emergency Centre-based paediatric procedural sedation: current practice and challenges in Cape Town. Southern African Journal of Anaesthesia and Analgesia 2019. [DOI: 10.1080/22201181.2018.1541561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- A Burger
- Department of Anaesthesia and Perioperative Medicine, University of Cape Town, Cape Town, South Africa
| | - PW Hodkinson
- Department of Surgery, Division of Emergency Medicine, University of Cape Town, Cape Town, South Africa
| | - LA Wallis
- Joint Division of Emergency Medicine, University of Cape Town, Cape Town, South Africa
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Driscoll MA, Higgins D, Shamaskin-Garroway A, Burger A, Buta E, Goulet JL, Heapy A, Kerns RD, Brandt CA, Haskell SG. Examining Gender as a Correlate of Self-Reported Pain Treatment Use Among Recent Service Veterans with Deployment-Related Musculoskeletal Disorders. Pain Med 2018; 18:1767-1777. [PMID: 28379576 DOI: 10.1093/pm/pnx023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Objective Women veterans with chronic pain utilize health care with greater frequency than their male counterparts. However, little is known about gender differences in the use of specialty pain care in this population. This investigation examined gender differences in self-reported use of opioids, interventional pain treatments, rehabilitation therapies, and complementary and integrative health (CIH) services for chronic pain treatment both within and outside of the Veterans Health Administration in a sample of veterans who served in support of recent conflicts. Methods Participants included 325 veterans (54% women) who completed a baseline survey as part of the Women Veterans Cohort Study and reported deployment-related musculoskeletal conditions and chronic pain. Measures included self-reported use of pain treatment modalities, pain severity, self-rated health, access to specialty care, disability status, and presence of a mental health condition. Results Men were more likely to report a persistent deployment-related musculoskeletal condition but were no more likely than women to report chronic pain. Overall, 21% of the sample reported using opioids, 27% used interventional strategies, 59% used rehabilitation therapies, and 57% used CIH services. No significant gender differences in use of any pain treatment modality were observed. Conclusions Use of pain specialty services was common among men and women, particularly rehabilitative and CIH services. There were no gender differences in the self-reported use of different modalities. These results are inconsistent with documented gender differences in pain care. They encourage further examination of gender differences in preferences and other individual difference variables as predictors of specialty pain care utilization.
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Affiliation(s)
- Mary A Driscoll
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Diana Higgins
- VA Boston Healthcare System, Jamaica Plain, Massachusetts.,Boston University School of Medicine, Boston, Massachusetts
| | - Andrea Shamaskin-Garroway
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | | | - Eugenia Buta
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Joseph L Goulet
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Alicia Heapy
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Robert D Kerns
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Cynthia A Brandt
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Sally G Haskell
- VA Connecticut Healthcare System, Pain Research, Informatics, Multimorbidities, and Education (PRIME), A Health Services Research and Development Center of Innovation, West Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
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Garcia-Prats AJ, du Plessis L, Draper HR, Burger A, Seddon JA, Zimri K, Hesseling AC, Schaaf HS. Outcome of culture-confirmed isoniazid-resistant rifampicin-susceptible tuberculosis in children. Int J Tuberc Lung Dis 2018; 20:1469-1476. [PMID: 27776587 DOI: 10.5588/ijtld.16.0293] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Isoniazid-resistant rifampicin-susceptible (HRRS) tuberculosis (TB) is the most prevalent form of drug-resistant TB globally, and may be a risk factor for poor outcomes, but has been poorly described in children. OBJECTIVE To characterise the clinical presentation, treatment, and clinical and microbiological outcomes among children with culture-confirmed HRRS TB. DESIGN Retrospective hospital-based cohort study. RESULTS Of the 72 children included in the study, the median age was 50.1 months (IQR 21.5-102.5); 42% were male. Forty-four (51%) had a potential source case; only 13 were confirmed HRRS TB. Of 66 tested, 12 (17%) were human immunodeficiency virus (HIV) infected, and 36 (60%) of the 60 with pulmonary TB (PTB) had severe disease. Seventy children had treatment data; the median total duration of treatment was 11.3 months (IQR 9-12.3); 25 (36%) initiated treatment with a three-drug intensive phase; 52 (74%) received a fluoroquinolone. Of 63 children with known outcomes, 55 (88%) had a favourable outcome, 1 died and 3 had treatment failure. Ten had positive follow-up cultures at ⩾2 months after starting treatment. Older age (P = 0.008), previous anti-tuberculosis treatment (P = 0.023) and severe PTB (P = 0.018) were associated with failure to culture-convert at ⩾2 months. CONCLUSIONS Although overall outcomes were good, prolonged culture positivity and cases of treatment failure emphasise the need for additional attention to the management of children with HRRS TB.
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Affiliation(s)
- A J Garcia-Prats
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - L du Plessis
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - H R Draper
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - A Burger
- Brewelskloof Hospital, Western Cape Government Department of Health, Worcester, South Africa
| | - J A Seddon
- Department of Paediatrics, Imperial College London, London, UK
| | - K Zimri
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - A C Hesseling
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - H S Schaaf
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
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Leung SL, Barber JA, Burger A, Barnes RD. Factors associated with healthy and unhealthy workplace eating behaviours in individuals with overweight/obesity with and without binge eating disorder. Obes Sci Pract 2018; 4:109-118. [PMID: 29670748 PMCID: PMC5893464 DOI: 10.1002/osp4.151] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/15/2017] [Accepted: 12/19/2017] [Indexed: 11/24/2022] Open
Abstract
Objective Most Americans spend an average of 8 hours per day in the workplace. Current understanding of eating behaviours in the workplace and their association with overweight, obesity and binge eating disorder (BED) is limited. Workplace eating behaviours and weight‐related self‐efficacy were examined in a sample of 98 individuals with overweight or obesity, with or without BED. Design Participants completed the Weight Efficacy Lifestyle Questionnaire, Work and Social Adjustment Scale, Worker's Perception of Environmental Factors, and a Workplace Questionnaire. Results Eating unplanned food occurred on average 2.43 times per week (SD = 3.37), and eating unplanned food even when meals were brought from home occurred on average 1.28 times per week (SD = 1.84). Individuals with BED purchased lunch even when they brought food from home significantly more frequently than did individuals without BED. Those with BED also reported significantly poorer work and social adjustment related to binge eating as compared with those without BED. The most significant barriers to healthy eating in the workplace were coworker influence, eating more food in general and more junk food in response to stress, eating unplanned food at work and time constraints. Conclusions These factors may be important to target in weight‐loss treatment to increase individuals' weight loss success. As individuals with BED may be the most vulnerable to eating unplanned foods, clinicians may want to focus on this potential barrier in BED treatment.
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Affiliation(s)
- S L Leung
- Wyckoff Heights Medical Center Brooklyn NY USA
| | - J A Barber
- VA Connecticut Healthcare System West Haven CT USA.,Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - A Burger
- St Elizabeth Family Medicine Residency Youngstown OH USA
| | - R D Barnes
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
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Dunham CM, McClain JV, Burger A. Comparison of Bispectral Index™ values during the flotation restricted environmental stimulation technique and results for stage I sleep: a prospective pilot investigation. BMC Res Notes 2017; 10:640. [PMID: 29187246 PMCID: PMC5707909 DOI: 10.1186/s13104-017-2947-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 11/20/2017] [Indexed: 11/18/2022] Open
Abstract
Objective To determine whether Bispectral Index™ values obtained during flotation-restricted environment stimulation technique have a similar profile in a single observation compared to literature-derived results found during sleep and other relaxation-induction interventions. Results Bispectral Index™ values were as follows: awake-state, 96.6; float session-1, 84.3; float session-2, 82.3; relaxation-induction, 82.8; stage I sleep, 86.0; stage II sleep, 66.2; and stages III–IV sleep, 45.1. Awake-state values differed from float session-1 (%difference 12.7%; Cohen’s d = 3.6) and float session-2 (%difference 14.8%; Cohen’s d = 4.6). Relaxation-induction values were similar to float session-1 (%difference 1.8%; Cohen’s d = 0.3) and float session-2 (%difference 0.5%; Cohen’s d = 0.1). Stage I sleep values were similar to float session-1 (%difference 1.9%; Cohen’s d = 0.4) and float session-2 (%difference 4.3%; Cohen’s d = 1.0). Stage II sleep values differed from float session-1 (%difference 21.5%; Cohen’s d = 4.3) and float session-2 (%difference 19.6%; Cohen’s d = 4.0). Stages III–IV sleep values differed from float session-1 (%difference 46.5%; Cohen’s d = 5.6) and float session-2 (%difference 45.2%; Cohen’s d = 5.4). Bispectral Index™ values during flotation were comparable to those found in stage I sleep and nadir values described with other relaxation-induction techniques. Electronic supplementary material The online version of this article (10.1186/s13104-017-2947-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- C Michael Dunham
- Trauma, Critical Care, and General Surgery Services, St. Elizabeth Youngstown Hospital, 1044 Belmont Ave., Youngstown, OH, 44501, USA.
| | - Jesse V McClain
- Advanced Neurology Associates, Inc, 1340 Belmont Ave., Youngstown, OH, 44504, USA
| | - Amanda Burger
- Behavioral Medicine, St. Elizabeth Family Medicine Residency, 1053 Belmont Ave., Youngstown, OH, 44504, USA
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Savitsky B, Manor O, Friedlander Y, Burger A, Lawrence G, Calderon-Margalit R, Siscovick DS, Enquobahrie DA, Williams MA, Hochner H. Associations of socioeconomic position in childhood and young adulthood with cardiometabolic risk factors: the Jerusalem Perinatal Family Follow-Up Study. J Epidemiol Community Health 2016; 71:43-51. [PMID: 27417428 DOI: 10.1136/jech-2014-204323] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 11/30/2015] [Accepted: 06/29/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Several stages in the life course have been identified as important to the development of cardiovascular disease. This study aimed to assess the associations of childhood and adulthood socioeconomic position (SEP) and social mobility with cardiometabolic risk factors (CMRs) later in life. METHODS We conducted follow-up examinations of 1132 offspring, aged 32, within a population-based cohort of all births in Jerusalem from 1974 to 1976. SEP was indicated by parents' occupation and education, and adulthood SEP was based on offspring's occupation and education recorded at age 32. Linear regression models were used to investigate the associations of SEP and social mobility with CMRs. RESULTS Childhood-occupational SEP was negatively associated with body mass index (BMI; β=-0.29, p=0.031), fat percentage (fat%; β=-0.58, p=0.005), insulin (β=-0.01, p=0.031), triglycerides (β=-0.02, p=0.024) and low-density lipoprotein cholesterol (LDL-C; β=-1.91, p=0.015), independent of adulthood SEP. Adulthood-occupational SEP was negatively associated with waist-to-hip ratio (WHR; β=-0.01, p=0.002), and positively with high-density lipoprotein cholesterol (HDL-C; β=0.87, p=0.030). Results remained similar after adjustment for smoking and inactivity. Childhood-educational SEP was associated with decreased WHR and LDL-C level (p=0.0002), and adulthood-educational SEP was inversely associated with BMI (p=0.001), waist circumference (p=0.008), WHR (p=0.001) and fat% (p=0.0002) and positively associated with HDL-C (p=0.030). Additionally, social mobility (mainly upward) was shown to have adverse cardiometabolic outcomes. CONCLUSIONS Both childhood and adulthood SEP contribute independently to CMR. The match-mismatch hypothesis may explain the elevated CMRs among participants experiencing social mobility. Identification of life-course SEP-related aspects that translate into social inequality in cardiovascular risk may facilitate efforts for improving health and for reducing disparities in cardiovascular disease.
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Affiliation(s)
- B Savitsky
- The Braun School of Public Health, The Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - O Manor
- The Braun School of Public Health, The Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - Y Friedlander
- The Braun School of Public Health, The Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - A Burger
- The Braun School of Public Health, The Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - G Lawrence
- The Braun School of Public Health, The Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - R Calderon-Margalit
- The Braun School of Public Health, The Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - D S Siscovick
- Cardiovascular Health Research Unit, Department of Medicine and Epidemiology, University of Washington, Seattle, Washington, USA
| | - D A Enquobahrie
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, USA
| | - M A Williams
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - H Hochner
- The Braun School of Public Health, The Hebrew University-Hadassah Medical Center, Jerusalem, Israel
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Musso G, Mosimann C, Panáková D, Burger A, Zhou Y, Zon LI, MacRae CA. Generating and evaluating a ranked candidate gene list for potential vertebrate heart field regulators. Genom Data 2015; 6:199-201. [PMID: 26697374 PMCID: PMC4664750 DOI: 10.1016/j.gdata.2015.09.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 09/12/2015] [Indexed: 11/20/2022]
Abstract
The vertebrate heart develops from two distinct lineages of cardiomyocytes that arise from the first and second heart fields (FHF and SHF, respectively). The FHF forms the primitive heart tube, while adding cells from the SHF allows elongation at both poles of the tube. Initially seen as an exclusive characteristic of higher vertebrates, recent work has demonstrated the presence of a distinct FHF and SHF in lower vertebrates, including zebrafish. We found that key transcription factors that regulate septation and chamber formation in higher vertebrates, including Tbx5 and Pitx2, influence relative FHF and SHF contributions to the zebrafish heart tube. To identify molecular modulators of heart field migration, we used microarray-based expression profiling following inhibition of tbx5a and pitx2ab in embryonic zebrafish (Mosimann & Panakova, et al, 2015; GSE70750). Here, we describe in more detail the procedure used to process, prioritize, and analyze the expression data for functional enrichment.
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Affiliation(s)
- G Musso
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - C Mosimann
- Howard Hughes Medical Institute, Boston, MA 02115, USA ; Stem Cell Program, Boston Children's Hospital, MA 02115, USA ; Division of Hematology/Oncology, Boston Children's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA ; Institute of Molecular Life Sciences (IMLS), University of Zürich, 8057 Zürich, Switzerland
| | - D Panáková
- Max-Delbrück Center for Molecular Medicine (MDC), 13125 Berlin, Buch, Germany
| | - A Burger
- Institute of Molecular Life Sciences (IMLS), University of Zürich, 8057 Zürich, Switzerland
| | - Y Zhou
- Howard Hughes Medical Institute, Boston, MA 02115, USA ; Stem Cell Program, Boston Children's Hospital, MA 02115, USA ; Division of Hematology/Oncology, Boston Children's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
| | - L I Zon
- Howard Hughes Medical Institute, Boston, MA 02115, USA ; Stem Cell Program, Boston Children's Hospital, MA 02115, USA ; Division of Hematology/Oncology, Boston Children's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA
| | - C A MacRae
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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14
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Temmingh H, Stein DJ, Howells FM, Botha UA, Koen L, Mazinu M, Jordaan E, Niehaus DJH, Burger A, Brooks S, Stein DJ, Howells FM, Burger A, Roos A, Kwiatkowski M, Stein DJ, Donald KA, Howells FM, Chiliza B, Asmal L, Emsley R, Clark HM, Du Plessis I, Du Plessis I, Du Plessis S, Vink M, Joska JA, Koutsilieri E, Bagadia A, Stein DJ, Emsley R, Emsley R, Sian MJ, Hemmings SMJ, Martin LI, Van der Merwe L, Benecke R, Domschke K, Seedat S, Janse van Rensburg S, Van Toorn R, Schoeman JF, Peeters A, Fisher LR, Moremi K, Kotze MJ, Joubert P, Lippi G, Lochner C, Taljaard L, Stein DJ, Louw KA, Phillips N, Ipser J, Hoare J, Malan-Muller S, Fairbairn L, Daniels WMU, Dashti MJS, Oakeley EJ, Altorfer M, Harvey J, Seedat S, Gamieldien J, Hemmings SMJ, Maodi ML, Rataemande ST, Kyaw T, McGregor NW, Dimatelis J, Hemmings SMJ, Kinnear CJ, Stein DJ, Russel V, Nortje G. Biological Psychiatry Congress 2015. S Afr J Psychiatr 2015. [DOI: 10.4102/sajpsychiatry.v21i3.893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
<p><strong>List of Abstract Titles and authors:<br /></strong></p><p><strong>1. Psychosis: A matter of mental effort?</strong></p><p>M Borg, Y Y van der Zee, J H Hsieh, H Temmingh, D J Stein, F M Howells</p><p><strong>2.In search of an affordable, effective post-discharge intervention: A randomised control trial assessing the influence of a telephone-based intervention on readmissions for patients with severe mental illness in a developing country</strong></p><p><strong></strong>U A Botha, L Koen, M Mazinu, E Jordaan, D J H Niehaus</p><p><strong>3. The effect of early abstinence from long-term methamphetamine use on brain metabolism using 1H-magnetic resonance spectro-scopy (1H-MRS)</strong></p><p>A Burger, S Brooks, D J Stein, F M Howells</p><p><strong>4. The effect of <em>in utero exposure </em>to methamphetamine on brain metabolism in childhood using 1H-magnetic resonance spectroscopy (1H-MRS)</strong></p><p>A Burger, A Roos, M Kwiatkowski, D J Stein, K A Donald, F M Howells</p><p><strong>5. A prospective study of clinical, biological and functional aspects of outcome in first-episode psychosis: The EONKCS Study</strong></p><p><strong></strong>B Chiliza, L Asmal, R Emsley</p><p><strong>6. Stimulants as cognitive enhancers - perceptions v. evidence in a very real world</strong></p><p><strong></strong>H M Clark</p><p><strong>7. Pharmacogenomics in antipsychotic drugs</strong></p><p><strong></strong>Ilse du Plessis</p><p><strong>8. Serotonin in anxiety disorders and beyond</strong></p><p><strong></strong>Ilse du Plessis</p><p><strong>9. HIV infection results in ventral-striatal reward system hypo-activation during cue processing</strong></p><p><strong></strong>S du Plessis, M Vink, J A Joska, E Koutsilieri, A Bagadia, D J Stein, R Emsley</p><p><strong>10. Disease progression in schizophrenia: Is the illness or the treatment to blame?</strong></p><p>R Emsley, M J Sian</p><p><strong>11. Serotonin transporter variants play a role in anxiety sensitivity in South African adolescents</strong></p><p> S M J Hemmings, L I Martin, L van der Merwe, R Benecke, K Domschke, S Seedat</p><p><strong>12. Iron deficiency in two children diagnosed with multiple sclerosis: Report on whole exom sequencing</strong></p><p><strong></strong>S Janse van Rensburg, R van Toorn, J F Schoeman, A Peeters, L R Fisher, K Moremi, M J Kotze</p><p><strong>13. Benzodiazepines: Practical pharmacokinetics</strong></p><p><strong></strong>P Joubert</p><p><strong>14. What to consider when prescribing psychotropic medications</strong></p><p><strong></strong>G Lippi</p><p><strong>15. Current prescribing practices for obsessive-compulsive disorder in South Africa: Controversies and consensus</strong></p><p><strong></strong>C Lochner, L Taljaard, D J Stein</p><p><strong>16. Correlates of emotional and behavioural problems in children with preinatally acquired HIV in Cape Town, South Africa</strong></p><p><strong></strong>K-A Louw, N Phillips, JIpser, J Hoare</p><p><strong>17. The role of non-coding RNAs in fear extinction</strong></p><p><strong></strong>S Malan-Muller, L Fairbairn, W M U Daniels, M J S Dashti, E J Oakleley, M Altorfer, J Harvey, S Seedat, J Gamieldien, S M J Hemmings</p><p><strong>18. An analysis of the management og HIV-mental illness comorbidity at the psychiatric unit of the Dr George Mukhari Academic Hospital</strong></p><p><strong></strong>M L Maodi, S T Rataemane, T Kyaw</p><p><strong>19. The identification of novel genes in anxiety disorders: A gene X environment correlation and interaction study</strong></p><p><strong></strong>N W McGregor, J Dimatelis, S M J Hemmings, C J Kinnear, D J Stein, V Russel, C Lochner</p><p><strong>20. Collaborations between conventional medicine and traditional healers: Obstacles and possibilities</strong></p><p><strong></strong>G Nortje, S Seedat, O Gureje</p><p><strong>21. Thought disorder and form perception: Relationships with symptoms and cognitive function in first-episode schizophrenia</strong></p><p>M R Olivier, R Emsley</p><p><strong>22. Investigating the functional significance of genome-wide variants associated with antipsychotic treatment response</strong></p><p><strong></strong>E Ovenden, B Drogemoller, L van der Merwe, R Emsley, L Warnich</p><p><strong>23. The moral and bioethical determinants of "futility" in psychiatry</strong></p><p><strong></strong>W P Pienaar</p><p><strong>24. Single voxel proton magnetic resonance spectroscopy (1H-MRS) and volumetry of the amylgdala in social anxiety disorder in the context of early developmental trauma</strong></p><p>D Rosenstein, A T Hess, J Zwart, F Ahmed-Leitao, E Meintjies, S Seedat</p><p><strong>25. Schizoaffective disorder in an acute psychiatric unit: Profile of users and agreement with Operational Criteria (OPCRIT)</strong></p><p><strong></strong>R R Singh, U Subramaney</p><p><strong>26. The right to privacy and confidentiality: The ethics of expert diagnosis in the public media and the Oscar Pistorius trial</strong></p><p><strong></strong>C Smith</p><p><strong>27. A birth cohort study in South Africa: A psychiatric perspective</strong></p><p>D J Stein</p><p><strong>28. 'Womb Raiders': Women referred for observation in terms of the Criminal Procedures Act (CPA) charged with fetal abduction and murder</strong></p><p><strong></strong>U Subramaney</p><p><strong>29. Psycho-pharmacology of sleep wake disorders: An update</strong></p><p>R Sykes</p><p><strong>30. Refugee post-settlement in South Africa: Role of adjustment challenges and family in mental health outcomes</strong></p><p><strong></strong>L Thela, A Tomita, V Maharaj, M Mhlongo, K Jonathan</p><p><strong>31. Dstinguishing ADHD symptoms in psychotic disorders: A new insight in the adult ADHD questionnaire</strong></p><p>Y van der Zee, M Borg, J H Hsieh, H Temmingh, D J Stein, F M Howells</p><p><strong>32. Oscar Pistorius ethical dilemmas in a trial by media: Does this include psychiatric evaluation by media?</strong></p><p>M Vorster</p><p><strong>33. Genetic investigation of apetite aggression in South African former young offenders: The involvement of serotonin transporter gene</strong></p><p>K Xulu, J Somer, M Hinsberger, R Weierstall, T Elbert, S Seedat, S Hemmings</p><p><strong>34. Effects of HIV and childhood trauma on brain morphemtry and neurocognitive function</strong></p><p>G Spies, F Ahmed-Leitao, C Fennema-Notestine, M Cherner, S Seedat</p><p><strong>35. Measuring intentional behaviour normative data of a newly developed motor task battery</strong></p><p><strong></strong>S Bakelaar, J Blampain, S Seedat, J van Hoof, Y Delevoye-Turrel</p><p><strong>36. Resilience in social anxiety disorder and post-traumatic stress disorder in the context of childhood trauma</strong></p><p>M Bship, S Bakelaar, D Rosenstein, S Seedat</p><p><strong>37. The ethical dilemma of seclusion practices in psychiatry</strong></p><p>G Chiba, U Subramaney</p><p><strong>38. Physical activity and neurological soft signs in patients with schizophrenia</strong></p><p>O Esan, C Osunbote, I Oladele, S Fakunle, C Ehindero</p><p><strong>39. A retrospective study of completed suicides in the Nelson Mandela Bay Metropolitan Area from 2008 to 2013 - preliminary results</strong></p><p><strong></strong>C Grobler, J Strumpher, R Jacobs</p><p><strong>40. Serotonin transporter variants play a role in anxiety sensitivity in South African adolescents</strong></p><p><strong></strong>S M J Hemmings, L I Martin, L van der Merwe, R Benecke, K Domschke, S Seedat</p><p><strong>41. Investigation of variants within antipsychotic candidate pharmacogenes associated with treatment outcome</strong></p><p>F Higgins, B Drogmoller, G Wright, L van der Merwe, N McGregor, B Chiliza, L Asmal, L Koen, D Niehaus, R Emsley, L Warnich</p><p><strong>42. Effects of diet, smoking and alcohol consumption on disability (EDSS) in people diagnosed with multiple sclerosis</strong></p><p>S Janse van Rensburg, W Davis, D Geiger, F J Cronje, L Whati, M Kidd, M J Kotze</p><p><strong>43. The clinical utility of neuroimaging in an acute adolescnet psychiatric inpatient population</strong></p><p><strong></strong>Z Khan, A Lachman, J Harvey</p><p><strong>44. Relationships between childhood trauma (CT) and premorbid adjustment (PA) in a highly traumatised sample of patients with first-episode schizophrenia (FES</strong>)</p><p>S Kilian, J Burns, S Seedat, L Asmal, B Chiliza, S du Plessis, R Olivier, R Emsley</p><p><strong>45. Functional and cognitive outcomes using an mTOR inhibitor in an adolescent with TSC</strong></p><p>A Lachman, C van der Merwe, P Boyes, P de Vries</p><p><strong>46. Perceptions about adolescent body image and eating behaviour</strong></p><p><strong></strong>K Laxton, A B R Janse van Rensburg</p><p><strong>47. Clinical relevance of FTO rs9939609 as a determinant of cardio-metabolic risk in South African patients with major depressive disorder</strong></p><p>H K Luckhoff, M J Kotze</p><p><strong>48. Childhood abuse and neglect as predictors of deficits in verbal auditory memory in non-clinical adolescents with low anxiety proneness</strong></p><p>L Martin, K Martin, S Seedat</p><p><strong>49. The changes of pro-inflammatory cytokines in a prenatally stressed febrile seizure animal model and whether <em>Rhus chirindensis</em> may attenuate these changes</strong></p><p><strong></strong>A Mohamed, M V Mabandla, L Qulu</p><p><strong>50. Influence of TMPRSS6 A736v and HFE C282y on serum iron parameters and age of onset in patients with multiple sclerosis</strong></p><p><strong></strong>K E Moremi, M J Kotze, H K Luckhoff, L R Fisher, M Kidd, R van Toorn, S Janse van Rensburg</p><p><strong>51. Polypharmacy in pregnant women with serious mental illness</strong></p><p>E Thomas, E du Toit, L Koen, D Niehaus</p><p><strong>52. Infant attachment and maternal depression as predictors of neurodevelopmental and behavioural outcomes at follow-up</strong></p><p>J Nothling, B Laughton, S Seedat</p><p><strong>53. Differences in abuse, neglect and exposure to community violence in adolescents with and without PTSD</strong></p><p><strong></strong>J Nothling, S Suliman, L Martin, C Simmons, S Seedat</p><p><strong>54. Assessment of oxidative stress markers in children with autistic spectrum disorders in Lagos, Nigeria</strong></p><p><strong></strong>Y Oshodi, O Ojewunmi, T A Oshodi, T Ijarogbe, O F Aina, J Okpuzor, O C F E A Lesi</p><p><strong>55. Change in diagnosis and management of 'gender identity disorder' in pre-adolescent children</strong></p><p>S Pickstone-Taylor</p><p><strong>56. Brain network connectivity in women exposed to intimate partner violence</strong></p><p>A Roos, J-P Fouche, B Vythilingum, D J Stein</p><p><strong>57. Prolonged exposure treatment for PTSD in a Third-World, task-shifting, community-based environment</strong></p><p>J Rossouw, E Yadin, I Mbanga, T Jacobs, W Rossouw, D Alexander, S Seedat</p><p><strong>58. Contrasting effects of early0life stress on mitochondrial energy-related proteins in striatum and hippocampus of a rat model of attention-deficit/ hyperactivity disorder</strong></p><p><strong></strong>V Russell, J Dimatelis, J Womersley, T-L Sterley</p><p><strong>59. Attention-deficit hyperactivity disorder in adults: A South African perspective</strong></p><p>R Schoeman, M de Klerk, M Kidd</p><p><strong>60. Cognitive function in women with HIV infection and early-life stress</strong></p><p>G Spies, C Fennema-Notestine, M Cherner, S Seedat</p><p><strong>61. Changes in functional connectivity networks in bipolar disorder patients after mindfulness-based cognitic therapy</strong></p><p>J A Starke, C F Beckmann, N Horn</p><p><strong>62. Post-traumatic stress disorder, overweight and obesity: A systematic review and meta-analysis</strong></p><p><strong></strong>S Suliman, L Anthonissen, J Carr, S du Plessis, R Emsley, S M J Hemmings, C Lochner, N McGregor L van den Heuvel, S Seedat</p><p><strong>63. The brain and behaviour in a third-trimester equivalent animal model of fetal alcohol spectrum disorders</strong></p><p>P C Swart, C B Currin, J J Dimatelis, V A Russell</p><p><strong>64. Irritability Assessment Model (IAM) to monitor irritability in child and adolescent psychiatric disorders.</strong></p><p>D van der Westhuizen</p><p><strong>65. Outcome of parent-adolescent training in chilhood victimisation: Adaptive functioning, psychosocial and physiological variables</strong></p><p>D van der Westhuizen</p><p><strong>66. The effect of ketamine in the Wistar-Kyoto and Sprague Dawley rat models of depression</strong></p><p>P J van Zyl, J J Dimatelis, V A Russell</p><p><strong>67. Investigating COMT variants in anxiety sensitivity in South African adolescents</strong></p><p>L J Zass, L Martin, S Seedat, S M J Hemmings</p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p><strong><br /></strong></p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p>
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15
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Hsu HT, Chen HM, Yang Z, Wang J, Lee NK, Burger A, Zaret K, Liu T, Levine E, Mango SE. TRANSCRIPTION. Recruitment of RNA polymerase II by the pioneer transcription factor PHA-4. Science 2015; 348:1372-6. [PMID: 26089518 DOI: 10.1126/science.aab1223] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Pioneer transcription factors initiate cell-fate changes by binding to silent target genes. They are among the first factors to bind key regulatory sites and facilitate chromatin opening. Here, we identify an additional role for pioneer factors. In early Caenorhabditis elegans foregut development, the pioneer factor PHA-4/FoxA binds promoters and recruits RNA polymerase II (Pol II), often in a poised configuration in which Pol II accumulates near transcription start sites. At a later developmental stage, PHA-4 promotes chromatin opening. We found many more genes with poised RNA polymerase than had been observed previously in unstaged embryos, revealing that early embryos accumulate poised Pol II and that poising is dynamic. Our results suggest that Pol II recruitment, in addition to chromatin opening, is an important feature of PHA-4 pioneer factor activity.
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Affiliation(s)
- H-T Hsu
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA
| | - H-M Chen
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA
| | - Z Yang
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - J Wang
- Department of Biochemistry, University at Buffalo, Buffalo, NY, USA
| | - N K Lee
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA
| | - A Burger
- Department of Physics and Center for Systems Biology, Harvard University, Cambridge, MA, USA
| | - K Zaret
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - T Liu
- Department of Biochemistry, University at Buffalo, Buffalo, NY, USA. Department of Biostatistics, University at Buffalo, Buffalo, NY 14214, USA
| | - E Levine
- Department of Physics and Center for Systems Biology, Harvard University, Cambridge, MA, USA
| | - S E Mango
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA.
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16
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Polen E, Weintraub M, Stoffer C, Jaffe DH, Burger A, Revel-Vilk S. Post-thrombotic syndrome after central venous catheter removal in childhood cancer survivors: A prospective cohort study. Pediatr Blood Cancer 2015; 62:285-290. [PMID: 25359689 DOI: 10.1002/pbc.25302] [Citation(s) in RCA: 22] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Accepted: 09/14/2014] [Indexed: 11/11/2022]
Abstract
BACKGROUND Although the use of central venous catheters (CVCs) has greatly improved the quality of care of children with cancer, these catheters increase the risk of deep vein thrombosis (DVT) and the potential long-term complication of post-thrombotic syndrome (PTS). We aimed to study PTS post-CVC removal using physical, functional and health related quality of life (HRQoL) domains in childhood cancer and bone marrow transplantation (BMT) survivors. PROCEDURE We conducted a prospective study in a cohort of childhood cancer and BMT survivors post-CVC use. Participants were evaluated for PTS with the Modified Villalta Score (MVS) and the Manco-Johnson Instrument (MJI). HRQoL was assessed using the PedsQL™ questionnaire. RESULTS A total of 158 children were enrolled at a median of 41 (4-149) months from CVC removal. Signs and symptoms of PTS were present in 34% (95% confidence interval [CI] 27-43%) (MVS criteria) and 30.5% (95% CI 23.1-37.8%) (MJI criteria). Diagnosis of PTS was associated with history of CVC occlusion, history of CVC-related DVT and the use of ≥2 CVCs. The presence of signs and symptoms of PTS was a predictor for low HRQoL tested by the PedsQL™ Total Scale scores and Physical Health Summary scores. CONCLUSIONS PTS post-CVC removal in pediatric cancer survivors is not a rare event. The association between PTS and the history of CVC occlusion confirms earlier findings, and suggests that CVC occlusion may indicate asymptomatic DVT. PTS is also associated with lower HRQoL scores highlighting the need to study preventive measures, especially for high risk groups. Pediatr Blood Cancer 2015;62:285-290. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- E Polen
- Pediatric Hematology/Oncology Department, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - M Weintraub
- Pediatric Hematology/Oncology Department, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - C Stoffer
- Pediatric Hematology/Oncology Department, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - D H Jaffe
- Braun School of Public Health, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - A Burger
- Braun School of Public Health, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - S Revel-Vilk
- Pediatric Hematology/Oncology Department, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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17
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Barthes NPF, Karpenko IA, Dziuba D, Spadafora M, Auffret J, Demchenko AP, Mély Y, Benhida R, Michel BY, Burger A. Development of environmentally sensitive fluorescent and dual emissive deoxyuridine analogues. RSC Adv 2015. [DOI: 10.1039/c5ra02709h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We designed and developed fluorescent deoxyuridine analogues with strong sensitivity to hydration for the major groove labelling of DNA.
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Affiliation(s)
- N. P. F. Barthes
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - I. A. Karpenko
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - D. Dziuba
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - M. Spadafora
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - J. Auffret
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | | | - Y. Mély
- Laboratoire de Biophotonique et Pharmacologie
- UMR 7213
- Faculté de Pharmacie
- Université de Strasbourg
- CNRS
| | - R. Benhida
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - B. Y. Michel
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - A. Burger
- Institut de Chimie de Nice
- UMR 7272
- Université de Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
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18
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Klots AR, Newaz AKM, Wang B, Prasai D, Krzyzanowska H, Lin J, Caudel D, Ghimire NJ, Yan J, Ivanov BL, Velizhanin KA, Burger A, Mandrus DG, Tolk NH, Pantelides ST, Bolotin KI. Probing excitonic states in suspended two-dimensional semiconductors by photocurrent spectroscopy. Sci Rep 2014; 4:6608. [PMID: 25318849 PMCID: PMC4198869 DOI: 10.1038/srep06608] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 08/28/2014] [Indexed: 12/23/2022] Open
Abstract
The optical response of semiconducting monolayer transition-metal dichalcogenides (TMDCs) is dominated by strongly bound excitons that are stable even at room temperature. However, substrate-related effects such as screening and disorder in currently available specimens mask many anticipated physical phenomena and limit device applications of TMDCs. Here, we demonstrate that that these undesirable effects are strongly suppressed in suspended devices. Extremely robust (photogain > 1,000) and fast (response time < 1 ms) photoresponse allow us to study, for the first time, the formation, binding energies, and dissociation mechanisms of excitons in TMDCs through photocurrent spectroscopy. By analyzing the spectral positions of peaks in the photocurrent and by comparing them with first-principles calculations, we obtain binding energies, band gaps and spin-orbit splitting in monolayer TMDCs. For monolayer MoS2, in particular, we obtain an extremely large binding energy for band-edge excitons, E bind ≥ 570 meV. Along with band-edge excitons, we observe excitons associated with a van Hove singularity of rather unique nature. The analysis of the source-drain voltage dependence of photocurrent spectra reveals exciton dissociation and photoconversion mechanisms in TMDCs.
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Affiliation(s)
- A. R. Klots
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
| | - A. K. M. Newaz
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
| | - Bin Wang
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
| | - D. Prasai
- Interdisciplinary Graduate Program in Materials Science, Vanderbilt University, Nashville, TN-37234, USA
| | - H. Krzyzanowska
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
| | - Junhao Lin
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN-37831, USA
| | - D. Caudel
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
| | - N. J. Ghimire
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN-37996, USA
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN-37831, USA
| | - J. Yan
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN-37831, USA
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN-37996, USA
| | - B. L. Ivanov
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
| | - K. A. Velizhanin
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM-87545, USA
| | - A. Burger
- Department of Physics, Fisk University, Nashville, TN-37208, USA
| | - D. G. Mandrus
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN-37996, USA
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN-37831, USA
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN-37996, USA
| | - N. H. Tolk
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
| | - S. T. Pantelides
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN-37831, USA
| | - K. I. Bolotin
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN-37235, USA
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Burger A, Buzurovic I, Hurwitz M, Mishra P, Williams C, Seco J, Lewis J. SU-D-18A-04: Quantifying the Ability of Tumor Tracking to Spare Normal Tissue. Med Phys 2014. [DOI: 10.1118/1.4887904] [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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Burger A, Hoffman LC, Cloete JJE, Muller M, Cloete SWP. Carcass composition of Namaqua Afrikaner, Dorper and SA Mutton Merino ram lambs reared under extensive conditions. S AFR J ANIM SCI 2014. [DOI: 10.4314/sajas.v43i5.5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Miller S, Bissett C, Burger A, Courtenay B, Dickerson T, Druce D, Ferreira S, Funston P, Hofmeyr D, Kilian P, Matthews W, Naylor S, Parker D, Slotow R, Toft M, Zimmermann D. Management of Reintroduced Lions in Small, Fenced Reserves in South Africa: An Assessment and Guidelines. ACTA ACUST UNITED AC 2013. [DOI: 10.3957/056.043.0202] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Pankratov V, Popov A, Shirmane L, Kotlov A, Bizarri G, Burger A, Bhattacharya P, Tupitsyn E, Rowe E, Buliga V, Williams R. Luminescence and ultraviolet excitation spectroscopy of SrI2 and SrI2:Eu2+. RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2013.02.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rowe E, Tupitsyn E, Wiggins B, Bhattacharya P, Matei L, Groza M, Buliga V, Burger A, Beck P, Cherepy N, Payne S. Double Salts Iodide Scintillators: Cesium Barium Iodide, Cesium Calcium Iodide, and Barium Bromine Iodide. Cryst Res Technol 2013. [DOI: 10.1002/crat.201300010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Packer C, Loveridge A, Canney S, Caro T, Garnett S, Pfeifer M, Zander K, Swanson A, MacNulty D, Balme G, Bauer H, Begg C, Begg K, Bhalla S, Bissett C, Bodasing T, Brink H, Burger A, Burton A, Clegg B, Dell S, Delsink A, Dickerson T, Dloniak S, Druce D, Frank L, Funston P, Gichohi N, Groom R, Hanekom C, Heath B, Hunter L, DeIongh H, Joubert C, Kasiki S, Kissui B, Knocker W, Leathem B, Lindsey P, Maclennan S, McNutt J, Miller S, Naylor S, Nel P, Ng'weno C, Nicholls K, Ogutu J, Okot-Omoya E, Patterson B, Plumptre A, Salerno J, Skinner K, Slotow R, Sogbohossou E, Stratford K, Winterbach C, Winterbach H, Polasky S. Conserving large carnivores: dollars and fence. Ecol Lett 2013; 16:635-41. [PMID: 23461543 DOI: 10.1111/ele.12091] [Citation(s) in RCA: 153] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 11/19/2012] [Accepted: 01/17/2013] [Indexed: 11/26/2022]
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Suckel A, Burger A, Wülker N, Wünschel M. [Ankle arthrodesis - clinical, radiological and biomechanical aspects with special regard to the adjacent joints]. Z Orthop Unfall 2013; 150:588-93. [PMID: 23303612 DOI: 10.1055/s-0032-1327931] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Arthrodesis as well as total arthroplasty are well established but controversially discussed treatment options for end-stage osteoarthritis of the ankle joint. For guidance concerning the significance of both surgical procedures we have correlated our clinical, radiological and biomechanical data with an up-to-date literature review. MATERIAL AND METHODS 15 patients after arthrodesis because of an isolated end-stage osteoarthritis of the ankle joint were followed clinically and radiologically 4 (1.9-8.8) years after surgery. To evaluate the outcome, different scores (AOFAS, Kellgren and Lawrence) were used. In the second part of the study a dynamic foot model was implemented to simulate a foot strike in vitro utilising a cadaver foot. By controlling 6 extrinsic tendons via steel cables, a hydraulic force application and a moving ground plate, a foot strike was simulated. Intraarticular compression load was measured in the talonavicular and calcaneocuboid joints with pressure-sensitive foils. RESULTS The mean AOFAS score for the subcategory pain was 28 ± 12 points. In the subcategory function the patients had a mean score of 38 ± 9 points summing up to a mean total AOFAS score of 66 ± 18 points. Six patients showed radiological evidence of degeneration of the talonavicular joint. For these patients the Kellgren and Lawrence score was 2.3 (1-4) points higher than for the opposite side. Concerning the subtalar joint in 6 patients the Kellgren and Lawrence score was 1.6 (1-3) points higher compared to the non-surgery side. In contrast we noted only one case with degeneration of the calcaneocuboid joint. The native trial utilising the foot model revealed a continuous rise of load transmission in both parts of the Chopart joint. After performing an arthrodesis, load transmission rose significantly in the second half of the foot strike concerning the talonavicular joint whereas the calcaneocuboid joint showed a decreased transmission of load. CONCLUSION Referring to published data complication rates after ankle arthrodesis are lower compared to total ankle arthroplasty whilst adjacent joint degeneration of the subtalar and talonavicular joints is more common.
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Affiliation(s)
- A Suckel
- Orthopädie und Unfallchirurgie, Katharinenhospital, Stuttgart
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Bamiduro O, Chennamadhava G, Bowie C, Robinson B, Dondapati H, Konda RB, Robertson B, Bahoura M, Pradhan AK, Cui Y, Bhattacharya P, Burger A. Self-assembled hierarchical nanostructures composed of novel chalcopyrite nanosheets for photovoltaic properties. J Nanosci Nanotechnol 2013; 13:467-476. [PMID: 23646756 DOI: 10.1166/jnn.2013.6724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Self-assembled nanostructures of CulnGaSe2 (CIGS) comprising of nanosheets with sheet thickness of 20 nm have been developed via one-step electrochemically alloying technique. These self-assembled nanoplates exhibit highly intersecting behavior and transform from CuSe to CIGS as the reduction potential was varied. The morphological analysis indicated that the process resulted in a progression of crystallites to a series of heavy dense intersecting nanoplates. Further analyses revealed that the nanostructures keep their integrity on heat treatment. The structure confirms the inclusion of Indium and Gallium at higher reduction potentials and its transition from pseudoamorphous to polycrystalline structure. A strong correlation between reduction potential, and the composition was established. The spectroscopic and optical spectra clearly prove that the direct band gap for the as-grown and annealed thin films, and appropriate for solar cell applications. These self-assembled dense interweaved nanoplates structure have not been observed previously in CIGS semiconductor system and have potential implications forenergy applications.
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Affiliation(s)
- O Bamiduro
- Center for Materials Research, Norfolk State University, Norfolk, Virginia VA 23504, USA
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Van Rooyen J, Kotzee L, Kruger R, Mels C, Burger A. P1.31 A COMPARISON OF THE POPLITEAL AND CAROTID ARTERIES IN YOUNG AND OLDER CAUCASIAN MEN AND WOMEN. Artery Res 2013. [DOI: 10.1016/j.artres.2013.10.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Abstract
A number of genes differentially expressed in breast cancer were isolated using a subtractive cloning technique. DNA sequence analysis and GenBank searches of T4F10, T2H7, and T2E5 cDNA clones found them to be identical with E2A, MSS1, and SEC13R genes. Their expression in a variety of primary breast tumor and cancer cell lines was compared with c-ERB-B2 and pS2 by Northern blot analysis. In breast cancer cell lines, the genes that we isolated are more frequently expressed than the previously described c-ERB-B2 and pS2.
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Affiliation(s)
- A Burger
- UNIV TORONTO,DEPT PATHOL,FAC MED,TORONTO,ON,CANADA. UNIV TORONTO,FAC DENT,TORONTO,ON,CANADA. UNIV TORONTO,WOMENS COLL HOSP,TORONTO,ON,CANADA. UNIV BRADFORD,CLIN ONCOL UNIT,BRADFORD BD7 1DP,W YORKSHIRE,ENGLAND. MEM SLOAN KETTERING CANC CTR,NEW YORK,NY. NCI,MOLEC ONCOL LAB,FREDERICK,MD
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Schubiner H, Burger A, Lumley M. P02.147. Emotions matter: sustained reductions in chronic non-structural pain after a brief, manualized emotional processing program. Altern Ther Health Med 2012. [PMCID: PMC3373633 DOI: 10.1186/1472-6882-12-s1-p203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Benzimra JD, Kapoor B, Edmeades N, Burger A, Simcock PR. Surgical repair of bilateral full thickness macular holes in a patient with blue sclera secondary to osteogenesis imperfecta. Eye (Lond) 2012; 26:1023-4. [PMID: 22498800 DOI: 10.1038/eye.2012.63] [Citation(s) in RCA: 2] [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: 11/09/2022] Open
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van Rooyen J, Kotzee L, Mels C, Kruger R, Burger A. P2.44 A COMPARISON OF THE CAROTID AND POPLITEAL ARTERIES IN YOUNG AND OLDER CAUCASIAN MEN. Artery Res 2012. [DOI: 10.1016/j.artres.2012.09.124] [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: 10/27/2022] Open
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Mannu G, Navi A, Morgan A, Mirza S, Down S, Farooq N, Burger A, Hussien M. Sentinel lymph node biopsy before mastectomy and immediate breast reconstruction may predict post-mastectomy radiotherapy, reduce delayed complications and improve the choice of reconstruction. Int J Surg 2012; 10:259-64. [DOI: 10.1016/j.ijsu.2012.04.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 03/24/2012] [Accepted: 04/12/2012] [Indexed: 10/28/2022]
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Waqar S, Burger A, Smith M, Simcock P. A day at the races: ocular injuries in extreme motorcycle racing spectators. Eye (Lond) 2011; 26:172-3. [PMID: 22056865 DOI: 10.1038/eye.2011.280] [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: 11/10/2022] Open
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Gadgeel SM, Ruckdeschel JC, Wozniak AJ, Chen W, Hackstock D, Galasso C, Burger A, Ivy SP, LoRusso P, Edelman MJ. Cediranib, a VEGF receptor 1, 2, and 3 inhibitor, and pemetrexed in patients (pts) with recurrent non-small cell lung cancer (NSCLC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.7564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [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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Chen H, Hayes M, Chattopadhyay K, Chen KT, Burger A, Heffelfinger J, James RB. Photoluminescence Investigation of Surface Oxidation of C0.9Zn0.1 Te Detectors. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-487-65] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractThe effect of surface oxidation of Cd1−xZnxTe (x = 0.1) detectors by chemical etching in hydrogen peroxide aqueous solution (H2O2) at different concentrations and etching times was investigated by low temperature photoluminescence (PL). The treatment resulted in better surface condition evidenced by the larger I(D0, X)/Idef intensity ratio and the narrower full width at half maximum of the main peak (D0, X). Peak shifts in the PL spectra associated with bound exciton lines and free to bound transition were also observed and attributed to the oxide layer. These surface effects were found to be dependent on H2O2 concentration and etching time. The significance of this surface oxidation on device passivation and the subsequent improvements in the detector performance are also discussed.
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Cherepy N, Payne SA, Hawrami R, Burger A, Boatner L, Van Loef E, Shah K. Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium Iodide. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-1164-l11-04] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractEuropium-doped strontium iodide scintillators offer a light yield exceeding 100,000 photons/MeV and excellent light yield proportionality, while at the same time, SrI2 is readily grown in single crystal form. Thus far, our collaboration has demonstrated an energy resolution with strontium iodide of 2.6% at 662 keV and 7.6% at 60 keV, and we have grown single crystals surpassing 30 cm3 in size (with lower resolution). Our analysis indicates that SrI2(Eu) has the potential to offer 2% energy resolution at 662 keV with optimized material, optics, and read-out. In particular, improvements in feedstock purity may result in crystal structural and chemical homogeneity, leading to improved light yield uniformity throughout the crystal volume, and consequently, better energy resolution. Uniform, efficient light collection and detection, is also required to achieve the best energy resolution with a SrI2(Eu) scintillator device.
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Burger A, Wijewardena C, Clayson S, Greatorex RA. Bare below elbows: does this policy affect handwashing efficacy and reduce bacterial colonisation? Ann R Coll Surg Engl 2010; 93:13-6. [PMID: 20727253 DOI: 10.1308/003588410x12771863936882] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION UK Department of Health guidelines recommend that clinical staff are 'bare below the elbows'. There is a paucity of evidence to support this policy. One may hypothesise that absence of clothing around wrists facilitates more effective handwashing: this study aims to establish whether dress code affects bacterial colonisation before and after handwashing. SUBJECTS AND METHODS Sixty-six clinical staff volunteered to take part in the study, noting whether they were bare below the elbows (BBE) or not bare (NB). Using a standardised technique, imprints of left and right fingers, palms, wrists and forearms were taken onto mini agar plates. Imprints were repeated after handwashing. After incubation, colonies per plate were counted, and subcultures taken. RESULTS Thirty-eight staff were BBE and 28 were not. A total of 1112 plates were cultured. Before handwashing there was no significant difference in number of colonies between BBE and NB groups (Mann-Whitney, P < 0.05). Handwashing reduced the colony count, with greatest effect on fingers, palms and dominant wrists (t-test, P < 0.05). Comparing the two groups again after handwashing revealed no significant difference (Mann-Whitney, P < 0.05). Subcultures revealed predominantly skin flora. CONCLUSIONS There was a large variation in number of colonies cultured. Handwashing resulted in a statistically significant reduction in colony count on fingers, palms and dominant wrist regardless of clothing. We conclude that handwashing produces a significant reduction in number of bacterial colonies on staff hands, and that clothing that is not BBE does not impede this reduction.
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Affiliation(s)
- A Burger
- Department of Surgery and Microbiology. The Queen Elizabeth Hospital, King's Lynn, Norfolk, UK.
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Anwar IF, Down SK, Rizvi S, Farooq N, Burger A, Morgan A, Hussien MI. Invasive lobular carcinoma of the breast: should this be regarded as a chronic disease? Int J Surg 2010; 8:346-52. [PMID: 20420942 DOI: 10.1016/j.ijsu.2010.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2009] [Revised: 03/08/2010] [Accepted: 04/20/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND The surgical treatment of patients with invasive lobular carcinoma is still controversial due to its different clinical and pathological features. Most studies report local recurrence after relatively short follow-up periods, which is usually 5 years. However there is some evidence to suggest that local recurrence may occur late in the course of follow-up. AIM OF THE STUDY To study the implications and outcome of extending the follow-up period of patients treated for invasive lobular carcinoma. PATIENTS AND METHODS Patients (268) treated between 1989 and 1996 were reviewed. Thirty-three patients were excluded as they had primary hormonal therapy. The outcomes for 235 patients were analyzed. RESULTS Seventy-nine patients (33.6%) had breast conservation surgery (group I), which was followed by re-excision due to positive margins in 23 patients (29%), and 156 patients (66.3%) had mastectomy (group II). Compared to group II, tumours in group I were smaller (mean size 17 vs. 37 mm, P=0.001), multifocal [20 (25%) vs. 14 (9%), P=0.003] and with more positive margins [23 (29%) vs. 24 (15%), P=0.0009]. Only 33 patients (21%) in group II, and all patients in group I had post-operative radiotherapy (P=0.0001). Forty-eight patients (17.9%) developed local recurrence [27 (34%) in group I and 21 (13.4%) in group II, P=0.0005] after a median follow-up period of 167.8 months. The mean time to local recurrence was 127 (range 24-196) months. Univariate analysis showed that the type of surgery, margin status, adjuvant radiotherapy and chemotherapy significantly affected local recurrence (P=0.0005, 0.02, 0.04 and 0.05 respectively). Cox regression analysis showed that the only factor affected local recurrence was the type of surgery (relative risk 2.43, 95% confidence interval 1.22-4.83, P=0.01) The overall survival was 99.3 months (78.2%). Univariate and Cox regression analyses showed that only the patients age at diagnosis significantly affected survival (P=0.003). CONCLUSION Local recurrence may be a late event in patients treated for invasive lobular carcinoma of the breast and extended follow-up may be considered. In this study mastectomy offers better local control.
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Affiliation(s)
- I F Anwar
- Breast Surgery Unit, Norfolk & Norwich University Hospital, Norwich, UK
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Naing A, LoRusso P, Mills G, Berry D, Doyle L, Rohren E, Burger A, Chen H, Busaidy NL, Kurzrock R. Phase I study combining an IGFR inhibitor (IMC-A12) and an mTOR inhibitor (temsirolimus) in patients with solid tumors or lymphoma. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e14535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14535 Background: IMC-A12 is a fully humanized IgG1/ lambda monoclonal antibody directed at the type I Insulin-Like Growth Factor Receptor (IGF-IR). Temsirolimus, an ester of the macrocyclic immunosuppressive agent sirolimus, is a cytostatic cell cycle inhibitor, which specifically inhibits the mammalian target of rapamycin (mTOR). A paradoxical increase in AKT activation by an mTOR inhibitor through an IGF-1R-dependent mechanism may compromise the therapeutic effect of mTOR inhibitors. Hence we evaluated the combination of temsirolimus and IMC-A12. Methods: This standard “3+3” design used a fixed dose of 25 mg IV weekly of temsirolimus with an escalating weekly dose of IV IMC-A12 at 3 mg/kg, 4 mg/kg and 6 mg/kg with no intrapatient dose escalation. The goal of this study is to define the MTD and to evaluate the biologic effects and metabolic activity of IMC-A12 and temsirolimus, individually and in combination. Patients with advanced solid tumors and lymphoma are eligible. No history of diabetes is allowed in dose escalation cohorts. Results: To date, 11 patients (4 males and 7 females, median age 47) with various solid tumor histologies have been enrolled across 3 dose cohorts with the current dose cohort at 6 mg/kg weekly IV of IMC-A12 and 25 mg weekly IV of temsirolimus. The MTD has not been determined. The most common grade 1 and grade 2 toxicities have been dysgeusia (n=5), fatigue (n=5), hyperglycemia (n=6), hypertriglyceridemia (n=6), leucopenia (n=4), mucositis (n=4), and ocular flashes of light (n=3). No grade 3 or 4 toxicity lasted more than 7 days (nausea n=1; vomiting n=1; thrombocytopenia n=1). Two patients (metastatic prostate cancer and metastatic breast cancer) demonstrated prolonged stable disease for 4 and 6 months, respectively. Conclusions: Preliminary data suggest that the combination is well tolerated and that it warrants further investigation. The expansion phase of this study will evaluate the biologic effects and metabolic activity of IMC-A12 and temsirolimus, individually and in combination, through the use of RPPA (Reverse Phase Protein Assays) and PET scans. [Table: see text]
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Affiliation(s)
- A. Naing
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - P. LoRusso
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - G. Mills
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - D. Berry
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - L. Doyle
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - E. Rohren
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - A. Burger
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - H. Chen
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - N. L. Busaidy
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
| | - R. Kurzrock
- M. D. Anderson Cancer Center, Houston, TX; Karmanos Cancer Institute, Detroit, MI; National Cancer Institute, Bethesda, MD; National Cancer Institute, Bethesda, MD
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Westgren U, Burger A, Levin K, Melander A, Nilsson G, Pettersson U. Divergent changes of serum 3,5,3'-triiodothyronine and 3,3',5'-triiodothyronine in patients with acute myocardial infarction. Acta Med Scand 2009; 201:269-72. [PMID: 403745 DOI: 10.1111/j.0954-6820.1977.tb15698.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The serum levels of thyroxine (T4), 3,5,3'-triiodothyronine (T3), 3,3',5'-triiodothyronine (reverse T3, rT3), thyroxine-binding globulin and thyroid-stimulating hormone have been monitored in 13 patients with acute myocardial infarction. The major changes recorded were a transient decrease in T3 and a transient increase in rT3. They reached a nadir and a peak, respectively, within three days. A conceivable explanation for these alterations is that the monodeiodination of T4 is diverted from the activating pathway (T4 to T3) to the inactivating pathway (T4 to rT3).
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Westgren U, Ahrén B, Burger A, Ingemansson S, Melander A. Effects of dexamethasone, desoxycorticosterone, and ACTH on serum concentrations of thyroxine, 3,5,3'-triiodothyronine and 3,3',5'-triiodothyronine. Acta Med Scand 2009; 202:89-92. [PMID: 197800 DOI: 10.1111/j.0954-6820.1977.tb16790.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The effects of a pure glucocorticoid, dexamethasone, and a pure mineralocorticoid, desoxycorticosterone, on the serum concentrations of thyroxine (T4), 3,5,3'-triiodothyronine (T3), and 3,3',5'-triiodothyronine (reverse T3, rT3) were compared both in healthy subjects and in athyreotic T4-substituted patients. In addition, the effect of exogenous ACTH was examined in healthy subjects. Both in healthy subjects and in T4-substituted athyreotic patients, administration of a single oral dose of dexamethasone caused a rapid and sharp decrease in the serum concentration of T3, and a corresponding increase in the serum concentration of rT3. The T4 concentration was not changed. A single oral dose of desoxycorticosterone evoked no significant changes in the serum concentrations of T3, rT3, or T4 either in healthy subjects or in T4-substituted athyreotic patients. Like dexamethasone, ACTH (two i.v. injections of 60 IU each, at a 6-hour interval) evoked a serum T3 reduction and a serum rT3 increase. Hence, it appears that both endogenous and exogenous glucocorticoids, but not mineralocorticoids, may partially divert the deiodination of T4 from the activating (T4 lead to T3) to the inactivating (T4 leads to rT3) pathway.
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Westgren U, Burger A, Ingemansson S, Melander A, Tibblin S, Wåhlin E. Blood levels of 3,5,3'-triiodothyronine and thyroxine: differences between children, adults, and elderly subjects. Acta Med Scand 2009; 200:493-5. [PMID: 1015359 DOI: 10.1111/j.0954-6820.1976.tb08271.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The serum levels of 3,5,3'-triiodothyronine (T3) and thyroxine (T4) in children, adolescents, adults, and elderly subjects have been measured by radioimmunoassays. It was found that while the T4 levels were essentially equal in all age groups examined, the T3 levels were markedly different. In children and adolescents (1-15 years), high values were recorded; indeed, they exceeded the upper normal limit in adults (20-80 years). From the age of 20, the T3 levels remained unaltered until the age of 80, after which there was a further reduction, to values approaching the lower normal limit for T3 in middle-aged subjects. The findings emphasize that separate normal values must be established for different age groups, in order to avoid diagnostic misinterpretations and therapeutic failures.
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Phatak P, Edelman M, Hendriks H, Burger A. 439 POSTER The cytotoxic activity of the telomere binding agent KML001 in non-small cell lung cancer cells is dependent on telomere length and p53 status and is enhanced by cisplatin. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72373-5] [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: 11/26/2022] Open
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Brahemi G, Fiasella A, Brancale A, Westwell A, Burger A. 135 POSTER Design and synthesis of BCA2 inhibitors. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72067-6] [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: 11/26/2022] Open
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Roussel JP, Burger A, Hetru C. Etude de l'activité inhibitrice de dérivés alléniques du cholestérol sur la biosynthèse de l'ecdysone. ACTA ACUST UNITED AC 2008. [DOI: 10.3109/13813459009113985] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Badros AZ, Philip S, Niesvizk R, Goloubeva O, Harris C, Zweibel J, Wright JJ, Burger A, Baer MR, Egorin MJ, Grant S. Phase I trial of vorinostat plus bortezomib (bort) in relapsed/refractory multiple myeloma (mm) patients (pts). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.8548] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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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Pradhan AK, Konda RB, Mustafa H, Mundle R, Bamiduro O, Roy UN, Cui Y, Burger A. Surface plasmon resonance in CdSe semiconductor coated with gold nanoparticles. Opt Express 2008; 16:6202-6208. [PMID: 18545322 DOI: 10.1364/oe.16.006202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We have grown CdSe semiconductor films on glass substrates and the films were coated with Au nanoparticles of 10 nm in size by the pulsed-laser deposition technique. The films demonstrate a large enhancement of Raman intensity and photoluminescence of CdSe semiconductor via excitation of surface plasmon resonances in proximate gold metal nanoparticles deposited on the surface of CdSe film. These observations suggest a variety of approaches for improving the performance of devices such as photodetectors, photovoltaics, and related devices, including biosensors.
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Affiliation(s)
- A K Pradhan
- Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504, USA.
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