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O 'Sullivan D, Silke C, Whelan B, McGowan B, O 'Sullivan M, McCabe JP, Heaney F, Armstrong C, Gsel AM, Connaughton B, Carey JJ. Osteoporotic fracture admissions compared to other major medical admissions in Irish public hospitals. Arch Osteoporos 2022; 18:12. [PMID: 36527534 DOI: 10.1007/s11657-022-01199-2] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022]
Abstract
Multinational reports suggest Ireland has one of the greatest illness burdens related to osteoporosis. Hospital care represents the costliest portion of health services. We found public hospital bed days for fragility fractures in Ireland increased by 43% between 2008 and 2017 which exceeded those for other common diseases. INTRODUCTION Recent multinational reports suggest Ireland has one of the greatest illness burdens related to osteoporosis, manifesting clinically as fragility fractures (FF). International reports show that FF incidence, rate of hospital admission and cost are similar or greater than those for breast cancer, myocardial infarction and stroke. Studies addressing the illness burden of osteoporosis in Ireland are few, and none compares fragility fractures to other common chronic diseases. METHODS A retrospective analysis of national administrative data for all public hospital admissions was performed on adults aged 50 years and older from January 2008 to December 2017. RESULTS In 2017, public hospital bed days for FF totalled 249,887 outnumbering Chronic Obstructive Pulmonary Disease (COPD): 131,897; 6 solid cancers (CA): 118,098; myocardial infarction (MI): 83,477; and diabetes mellitus (DM): 31,044. Bed days for FF increased by 43% between 2008 and 2017, in contrast to a 32%, 28% and 31% reduction for CA, MI and DM, respectively, and a 12% increase for COPD. Public hospital bed days for FF in 2016 were greater than MI, stroke, atrial fibrillation and chest pain combined but less than a combination of COPD, pneumonia and lower respiratory tract infection. CONCLUSION Osteoporotic fractures represent a large and rapidly increasing illness burden amongst older Irish adults, with substantial care requirements and the resulting onus on our healthcare system. Urgent action is needed to address this public health issue and the services for those at risk of fracture.
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Affiliation(s)
- D O 'Sullivan
- Department of Trauma and Orthopaedics, Galway University Hospitals, Galway, Ireland
| | - C Silke
- School of Medicine, National University of Ireland, Galway, H91 V4AY, Ireland
- Department of Rheumatology, Our Lady's Hospital, Manorhamilton, Ireland
| | - B Whelan
- School of Medicine, National University of Ireland, Galway, H91 V4AY, Ireland
- Department of Rheumatology, Our Lady's Hospital, Manorhamilton, Ireland
| | - B McGowan
- School of Medicine, National University of Ireland, Galway, H91 V4AY, Ireland
| | - M O 'Sullivan
- School of Medicine, National University of Ireland, Galway, H91 V4AY, Ireland
- Department of Rheumatology, Our Lady's Hospital, Manorhamilton, Ireland
| | - J P McCabe
- Department of Trauma and Orthopaedics, Galway University Hospitals, Galway, Ireland
- School of Medicine, National University of Ireland, Galway, H91 V4AY, Ireland
| | - F Heaney
- Department of Rheumatology, Galway University Hospitals, Galway, Ireland
| | - C Armstrong
- Department of Rheumatology, Galway University Hospitals, Galway, Ireland
| | - A M Gsel
- School of Medicine, National University of Ireland, Galway, H91 V4AY, Ireland
- Department of Rheumatology, Galway University Hospitals, Galway, Ireland
| | - B Connaughton
- Department of Rheumatology, Galway University Hospitals, Galway, Ireland
| | - J J Carey
- School of Medicine, National University of Ireland, Galway, H91 V4AY, Ireland.
- Department of Rheumatology, Galway University Hospitals, Galway, Ireland.
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Kufera J, Armstrong C, Wu F, Singhal A, Zhang H, Lai J, Wilkins H, Simonetti F, Siliciano J, Siliciano R. OP 3.6 – 00023 Effect of HIV-1 infection, viral particle production, and proviral integration site on CD4+ T cell proliferation. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100178] [Citation(s) in RCA: 1] [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: 01/28/2023] Open
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3
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O'Neil J, Whelan J, Armstrong C, Schroyer R. Assessing the Nutrition Knowledge, Family Activity-Eating Behaviors, and Food Accessibility of Parents with Children Diagnosed with Spina Bifida. J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Armstrong C, Best G, Marcus S. P.123 Peripartum spontaneous coronary artery dissection. Int J Obstet Anesth 2021. [DOI: 10.1016/j.ijoa.2021.103121] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Bondy GS, Curran IHC, Coady LC, Armstrong C, Bourque C, Bugiel S, Caldwell D, Kwong K, Lefebvre DE, Maurice C, Marchetti F, Pantazopoulos PP, Ross N, Gannon AM. A one-generation reproductive toxicity study of the mycotoxin ochratoxin A in Fischer rats. Food Chem Toxicol 2021; 153:112247. [PMID: 33951485 DOI: 10.1016/j.fct.2021.112247] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 02/08/2021] [Revised: 04/08/2021] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
Ochratoxin A (OTA) is a mycotoxin produced by Aspergillus and Penicillium molds. Grain-based foods account for most human dietary exposures to OTA. OTA is a teratogen, but its reproductive and developmental effects are poorly understood. A one-generation reproductive toxicity study was conducted with groups of 16 male and 16 female Fischer rats exposed to 0, 0.026, 0.064, 0.16, 0.4 or 1.0 mg OTA/kg in diet. Dams exposed to 1.0 mg OTA/kg diet had statistically significant F1 pup losses between implantation and postnatal day (PND 4). Delays in preputial separation (PPS) and vaginal opening (VO) were indicative of delayed puberty in F1 rats. Mild renal lesions in nursing pups indicated that exposure prior to weaning impacted the kidneys. The developing kidney was more susceptible to OTA than the adult kidney. Significant increases in multi-oocyte follicles (MOFs) and proportional changes in resting and growing follicles were observed in F1 female ovaries. Plasma testosterone was reduced in F0 males, and there were negative effects on sperm quality in F0 and F1 male rats. The results confirm that continuous dietary exposure to OTA causes post-implantation fetotoxicity in dams, and renal and reproductive toxicity in their male and female offspring.
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Affiliation(s)
- G S Bondy
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - I H C Curran
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - L C Coady
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - C Armstrong
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - C Bourque
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - S Bugiel
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - D Caldwell
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - K Kwong
- Ontario Food Laboratory, Laboratories Directorate, Regulatory Operations and Enforcement Branch, Toronto, Ontario, M1P 4R7, Canada
| | - D E Lefebvre
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - C Maurice
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - F Marchetti
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - P P Pantazopoulos
- Ontario Food Laboratory, Laboratories Directorate, Regulatory Operations and Enforcement Branch, Toronto, Ontario, M1P 4R7, Canada
| | - N Ross
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada
| | - A M Gannon
- Bureau of Chemical Safety, Food Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, K1A 0K9, Canada.
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Mizusawa M, Vindenes T, Buckley S, Armstrong C. A case series of rapidly growing mycobacterial catheter-related bloodstream infections among immunocompetent patients. J Clin Tuberc Other Mycobact Dis 2020; 21:100196. [PMID: 33195824 PMCID: PMC7642862 DOI: 10.1016/j.jctube.2020.100196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Rapidly growing mycobacteria (RGM) are ubiquitous in the environment and can cause a variety of human infections. Catheter-related bloodstream infections (CRBSI) caused by RGM have been reported predominantly among immunocompromised patients. Removal of central lines and antimicrobial therapy with at least 2 active agents are generally recommended for immunocompromised patients. RGM bloodstream infections (BSIs) are rare in immunocompetent patients and clinical data are very limited. Retrospective medical record review was conducted on patients with blood cultures positive for RGM from July 2012 through March 2015 at Lemuel Shattuck Hospital, a public teaching hospital in Jamaica Plain, Massachusetts, United States. RGM was suspected by presence of beaded Gram-positive bacilli on Gram staining of positive conventional blood cultures and it was confirmed as RGM by Massachusetts State Public Health Laboratory. Nineteen episodes of RGM BSI were identified in 17 patients who had no known immunocompromised conditions that predispose them to opportunistic pathogens. They were predominantly young male with history of intravenous drug use. Peripherally inserted central catheter (PICC) was present in all episodes of RGM BSI and 74% of them clinically improved with PICC removal alone without specific antibiotic therapy for RGM. They were followed up for median duration of 45 days (interquartile range 25–385). The patients remained alive and asymptomatic until the end of follow-up periods. In immunocompetent patients, removal of catheters alone without adding specific antibiotics may be sufficient for RGM CRBSI.
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Affiliation(s)
- Masako Mizusawa
- Section of Infectious Diseases, Department of Internal Medicine, University of Missouri, Kansas City, MO, USA
| | - Tine Vindenes
- Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, MA, USA
| | - Sarah Buckley
- Microbiology Laboratory, The Brigham and Women's Faulkner Hospital, Boston, MA, USA
| | - Catharina Armstrong
- Division of Infectious Diseases, The Newton-Wellesley Hospital, Newton, MA, USA
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7
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Robinson HK, Zaklyazminskaya E, Povolotskaya I, Surikova Y, Mallin L, Armstrong C, Mabin D, Benke PJ, Chrisant MR, McDonald M, Marboe CC, Agre KE, Deyle DR, McWalter K, Douglas G, Balashova MS, Kaimonov V, Shirokova N, Pomerantseva E, Turner CL, Ellard S. Biallelic variants in PPP1R13L cause paediatric dilated cardiomyopathy. Clin Genet 2020; 98:331-340. [PMID: 32666529 DOI: 10.1111/cge.13812] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 04/27/2020] [Revised: 06/12/2020] [Accepted: 06/29/2020] [Indexed: 12/21/2022]
Abstract
Childhood dilated cardiomyopathy (DCM) is a leading cause of heart failure requiring cardiac transplantation and approximately 5% of cases result in sudden death. Knowledge of the underlying genetic cause can aid prognostication and clinical management and enables accurate recurrence risk counselling for the family. Here we used genomic sequencing to identify the causative genetic variant(s) in families with children affected by severe DCM. In an international collaborative effort facilitated by GeneMatcher, biallelic variants in PPP1R13L were identified in seven children with severe DCM from five unrelated families following exome or genome sequencing and inheritance-based variant filtering. PPP1R13L encodes inhibitor of apoptosis-stimulating protein of p53 protein (iASPP). In addition to roles in apoptosis, iASPP acts as a regulator of desmosomes and has been implicated in inflammatory pathways. DCM presented early (mean: 2 years 10 months; range: 3 months-9 years) and was progressive, resulting in death (n = 3) or transplant (n = 3), with one child currently awaiting transplant. Genomic sequencing technologies are valuable for the identification of novel and emerging candidate genes. Biallelic variants in PPP1R13L were previously reported in a single consanguineous family with paediatric DCM. The identification here of a further five families now provides sufficient evidence to support a robust gene-disease association between PPP1R13L and severe paediatric DCM. The PPP1R13L gene should be included in panel-based genetic testing for paediatric DCM.
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Affiliation(s)
- H K Robinson
- Exeter Genomics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - E Zaklyazminskaya
- Medical Genetics Laboratory, Petrovsky National Research Centre of Surgery, Moscow, Russia.,NGS Laboratory
- Genotyping Laboratory
- Genetic Counseling Department, Centre of Genetics and Reproductive Medicine "Genetico", Moscow, Russia
| | - I Povolotskaya
- NGS Laboratory
- Genotyping Laboratory
- Genetic Counseling Department, Centre of Genetics and Reproductive Medicine "Genetico", Moscow, Russia
| | - Y Surikova
- Medical Genetics Laboratory, Petrovsky National Research Centre of Surgery, Moscow, Russia
| | - L Mallin
- Exeter Genomics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - C Armstrong
- Paediatric Cardiac Service, Bristol Royal Hospital for Children, Bristol, UK
| | - D Mabin
- Paediatrics Service, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - P J Benke
- Clinical Genetics Dpt, Joe DiMaggio Children's Hospital, Hollywood, Florida, USA.,Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, Florida, USA
| | - M R Chrisant
- Clinical Genetics Dpt, Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - M McDonald
- Department of Pediatrics, Division of Medical Genetics, Duke University Medical Center, Durham, North Carolina, USA
| | - C C Marboe
- Department of Pathology and Cell Biology, Columbia University Medical Centre, New York, New York, USA
| | - K E Agre
- Department of Clinical Genomics, Mayo Clinic, Rochester, Minnesota, USA
| | - D R Deyle
- Department of Clinical Genomics, Mayo Clinic, Rochester, Minnesota, USA
| | - K McWalter
- Clinical Genomics, GeneDx Inc, Gaithersburg, Maryland, USA
| | - G Douglas
- Clinical Genomics, GeneDx Inc, Gaithersburg, Maryland, USA
| | - M S Balashova
- NGS Laboratory
- Genotyping Laboratory
- Genetic Counseling Department, Centre of Genetics and Reproductive Medicine "Genetico", Moscow, Russia.,Chair of Genetics, I.M. Sechenov First Moscow State Medical University (Sechenov University)
| | - V Kaimonov
- NGS Laboratory
- Genotyping Laboratory
- Genetic Counseling Department, Centre of Genetics and Reproductive Medicine "Genetico", Moscow, Russia
| | - N Shirokova
- NGS Laboratory
- Genotyping Laboratory
- Genetic Counseling Department, Centre of Genetics and Reproductive Medicine "Genetico", Moscow, Russia
| | - E Pomerantseva
- NGS Laboratory
- Genotyping Laboratory
- Genetic Counseling Department, Centre of Genetics and Reproductive Medicine "Genetico", Moscow, Russia
| | - C L Turner
- Peninsula Clinical Genetics Service, Department of Clinical Genetics, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - S Ellard
- Exeter Genomics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK.,Institute of Biomedical and Clinical Science, College of Medicine and Health, Exeter, UK
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8
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Kiran M, Donnelly TD, Armstrong C, Kapoor B, Kumar G, Peter V. Diagnostic utility of fluorodeoxyglucose positron emission tomography in prosthetic joint infection based on MSIS criteria. Bone Joint J 2019; 101-B:910-914. [PMID: 31362552 DOI: 10.1302/0301-620x.101b8.bjj-2018-0929.r2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Prosthetic joint infection (PJI) and aseptic loosening in total hip arthroplasty (THA) can present with pain and osteolysis. The Musculoskeletal Infection Society (MSIS) has provided criteria for the diagnosis of PJI. The aim of our study was to analyze the utility of F18-fluorodeoxyglucose (FDG) positron emission tomography (PET) CT scan in the preoperative diagnosis of septic loosening in THA, based on the current MSIS definition of prosthetic joint infection. PATIENTS AND METHODS A total of 130 painful unilateral cemented THAs with a mean follow-up of 5.17 years (sd 1.12) were included in this prospective study. The mean patient age was 67.5 years (sd 4.85). Preoperative evaluation with inflammatory markers, aspiration, and an F18 FDG PET scan were performed. Diagnostic utility tests were also performed, based on the MSIS criteria for PJI and three samples positive on culture alone. RESULTS The mean erythrocyte sedimentation rate, C-reactive protein, and white cell count were 47.83 mm/hr, 25.21 mg/l, and 11.05 × 109/l, respectively. The sensitivity, specificity, accuracy, negative predictive value, and false-positive rate of FDG PET compared with MSIS criteria were 94.87%, 38.46 %, 56.38%, 94.59 %, and 60.21%, respectively. The false-positive rate of FDG PET compared with culture alone was 77.4%. CONCLUSION FDG PET has a definitive role in the preoperative evaluation of suspected PJI. This the first study to evaluate its utility based on MSIS criteria and compare it with microbiology results alone. However, FDG PET has a high false-positive rate. Therefore, we suggest that F18 FDG PET is useful in confirming the absence of infection, but if positive, may not be confirmatory of PJI. Cite this article: Bone Joint J 2019;101-B:910-914.
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Affiliation(s)
- M Kiran
- Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - T D Donnelly
- Trauma and Orthopaedics, Royal Liverpool University Hospital, Liverpool, UK
| | - C Armstrong
- Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - B Kapoor
- Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - G Kumar
- Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - V Peter
- Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
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Kiran M, Lacey A, Awad M, Armstrong C, Airey N, Peter V. Enhanced recovery protocol in total hip replacement does not increase general practitioner visits. Br J Anaesth 2018; 121:682-683. [PMID: 30115274 DOI: 10.1016/j.bja.2018.06.003] [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] [Received: 11/27/2017] [Revised: 02/02/2018] [Accepted: 06/10/2018] [Indexed: 11/28/2022] Open
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10
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Liu H, Liao GQ, Zhang YH, Zhu BJ, Zhang Z, Li YT, Scott GG, Rusby DR, Armstrong C, Zemaityte E, Carroll DC, Astbury S, Bradford P, Woolsey NC, McKenna P, Neely D. Cherenkov radiation-based optical fibre diagnostics of fast electrons generated in intense laser-plasma interactions. Rev Sci Instrum 2018; 89:083302. [PMID: 30184626 DOI: 10.1063/1.5024872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 07/21/2018] [Indexed: 06/08/2023]
Abstract
Diagnosing fast electrons is important to understand the physics underpinning intense laser-produced plasmas. Here, we demonstrate experimentally that a Cherenkov radiation-based optical fibre can serve as a reliable diagnostic to characterize the fast electrons escaping from solid targets irradiated by ultra-intense laser pulses. Using optical fibre loops, the number and angular distributions of the escaping electrons are obtained. The data agree well with measurements made using image plate stacks. The optical fibre can be operated at high-repetition rates and is insensitive to x-rays and ion beams, which makes it advantageous over other routinely used fast electron diagnostics in some aspects.
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Affiliation(s)
- H Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - G-Q Liao
- Key Laboratory for Laser Plasmas (MoE) and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Y-H Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - B-J Zhu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Z Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Y-T Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - G G Scott
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - D R Rusby
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - C Armstrong
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - E Zemaityte
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - D C Carroll
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - S Astbury
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - P Bradford
- Department of Physics, York Plasma Institute, University of York, Heslington York YO10 5DD, United Kingdom
| | - N C Woolsey
- Department of Physics, York Plasma Institute, University of York, Heslington York YO10 5DD, United Kingdom
| | - P McKenna
- Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, United Kingdom
| | - D Neely
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom
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Ryu S, Moon A, Youn C, Howland A, Armstrong C, Song P. 1176 Mechanistic analysis of B16F10 melanoma cell death induced by treatment with recombinant TRAIL and bortezomib. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yourshaw J, Armstrong C, Mishra P, Steinberg D, Ramu B, Craig M, Van Bakel A, Tedford R, Houston B. Effects of Percutaneous LVAD Support on Right Ventricular Load and Adaptation Acutely and Over Time. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.096] [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: 11/30/2022] Open
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13
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Mccarron A, Xu J, Armstrong C, Glynn G, Millar BC, Mcclurg RB, Han L, Goldsmith CE, Rooney PJ, Moore JE. Comparison of the identification of Acinetobacter spp. with API20NE and 16S rRNA gene sequencing techniques. Br J Biomed Sci 2018; 68:94-7. [DOI: 10.1080/09674845.2011.11978233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A.J. Mccarron
- Northern Ireland Public Health Laboratory, Department of Bacteriology, Belfast City Hospital, Belfast, Northern Ireland
- School of Biomedical Sciences, Centre for Molecular Biosciences, University of Ulster, Coleraine, Northern Ireland
| | - J. Xu
- Northern Ireland Public Health Laboratory, Department of Bacteriology, Belfast City Hospital, Belfast, Northern Ireland
- Department of Immunology and Pathogenic Biology, Molecular Bacteriology Laboratory, Key Laboratory of Environment and Genes related to Diseases of Chinese Ministry of Education, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China, Northern Ireland
| | - C. Armstrong
- Department of Microbiology, Craigavon Area Hospital, Craigavon, Co. Armagh, Northern Ireland
| | - G. Glynn
- Department of Microbiology,, Altnagelvin Hospital, Glenshane Road, Londonderry, Co. Londonderry, Northern Ireland
| | - B. C. Millar
- Northern Ireland Public Health Laboratory, Department of Bacteriology, Belfast City Hospital, Belfast, Northern Ireland
| | - R. B. Mcclurg
- Northern Ireland Public Health Laboratory, Department of Bacteriology, Belfast City Hospital, Belfast, Northern Ireland
| | - L. Han
- Department of Immunology and Pathogenic Biology, Molecular Bacteriology Laboratory, Key Laboratory of Environment and Genes related to Diseases of Chinese Ministry of Education, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China, Northern Ireland
| | - C. E. Goldsmith
- Northern Ireland Public Health Laboratory, Department of Bacteriology, Belfast City Hospital, Belfast, Northern Ireland
| | - P. J. Rooney
- Northern Ireland Public Health Laboratory, Department of Bacteriology, Belfast City Hospital, Belfast, Northern Ireland
| | - J. E. Moore
- Northern Ireland Public Health Laboratory, Department of Bacteriology, Belfast City Hospital, Belfast, Northern Ireland
- School of Biomedical Sciences, Centre for Molecular Biosciences, University of Ulster, Coleraine, Northern Ireland
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Maxwell P, Labonte M, McKechnie M, Duddy O, Armstrong C, Ong C, Zoubeidi A, Worthington J, Waugh D. Treatment-induced hypoxia attenuates enzalutamide response and promotes resistance in pre-clinical models of prostate cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx361.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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15
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Mizusawa M, Vindenes T, Armstrong C, Buckley S. A Case Series of Nontuberculous Mycobacterial Blood Stream Infections Among Non-cancer Patients. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Masako Mizusawa
- Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, Massachusetts
| | - Tine Vindenes
- Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, Massachusetts
| | | | - Sarah Buckley
- Hematology Laboratory, Lemuel Shattuck Hospital, Jamaica Plain, Massachusetts
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Mccarron A, Armstrong C, Glynn G, Millar B, Rooney P, Goldsmith C, Xu J, Moore J. Antibacterial effects on Acinetobacter species of commonly employed antineoplastic agents used in the treatment of haematological malignancies: an in vitro laboratory evaluation. Br J Biomed Sci 2016; 69:14-7. [DOI: 10.1080/09674845.2012.11669916] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- A.J. Mccarron
- Northern Ireland Public Health Laboratory, Department of Bacteriology Belfast City Hospital
- School of Biomedical Sciences, Centre for Molecular Biosciences, University of Ulster, Coleraine
| | - C. Armstrong
- Department of Microbiology, Altnagelvin Hospital, Glenshane Road, Londonderry Northern Ireland
| | - G. Glynn
- Department of Microbiology, Altnagelvin Hospital, Glenshane Road, Londonderry Northern Ireland
| | - B.C. Millar
- Northern Ireland Public Health Laboratory, Department of Bacteriology Belfast City Hospital
| | - P.J. Rooney
- Northern Ireland Public Health Laboratory, Department of Bacteriology Belfast City Hospital
| | - C.E. Goldsmith
- Northern Ireland Public Health Laboratory, Department of Bacteriology Belfast City Hospital
| | - J. Xu
- Department of Immunology and Pathogenic Biology, Molecular Bacteriology Laboratory, School of Medicine, Xi’an Jiaotong University, People’s Republic of China
| | - J.E. Moore
- Northern Ireland Public Health Laboratory, Department of Bacteriology Belfast City Hospital
- School of Biomedical Sciences, Centre for Molecular Biosciences, University of Ulster, Coleraine
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Armstrong C, Hamilton L, Shenkin SD. 26 * FACTORS PREDICTIVE OF NURSING HOME ADMISSION DIRECTLY FROM HOSPITAL: A SYSTEMATIC REVIEW. Age Ageing 2015. [DOI: 10.1093/ageing/afv029.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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18
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Solomon PM, Bryce BA, Kuroda MA, Keech R, Shetty S, Shaw TM, Copel M, Hung LW, Schrott AG, Armstrong C, Gordon MS, Reuter KB, Theis TN, Haensch W, Rossnagel SM, Miyazoe H, Elmegreen BG, Liu XH, Trolier-McKinstry S, Martyna GJ, Newns DM. Pathway to the piezoelectronic transduction logic device. Nano Lett 2015; 15:2391-2395. [PMID: 25793915 DOI: 10.1021/nl5046796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The piezoelectronic transistor (PET) has been proposed as a transduction device not subject to the voltage limits of field-effect transistors. The PET transduces voltage to stress, activating a facile insulator-metal transition, thereby achieving multigigahertz switching speeds, as predicted by modeling, at lower power than the comparable generation field effect transistor (FET). Here, the fabrication and measurement of the first physical PET devices are reported, showing both on/off switching and cycling. The results demonstrate the realization of a stress-based transduction principle, representing the early steps on a developmental pathway to PET technology with potential to contribute to the IT industry.
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Affiliation(s)
- P M Solomon
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - B A Bryce
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - M A Kuroda
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
- ‡Department of Physics, Auburn University, Auburn, Alabama 36849, United States
| | - R Keech
- §Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - S Shetty
- §Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - T M Shaw
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - M Copel
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - L-W Hung
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - A G Schrott
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - C Armstrong
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - M S Gordon
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - K B Reuter
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - T N Theis
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - W Haensch
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - S M Rossnagel
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - H Miyazoe
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - B G Elmegreen
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - X-H Liu
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - S Trolier-McKinstry
- §Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - G J Martyna
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - D M Newns
- †IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, United States
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Patrick K, Lau W, Gassas A, McDougall E, Doyle J, Ali M, Krueger J, Courtney S, Armstrong C, Egeler RM, Schechter T. Major ABO incompatible BMT in children: determining what residual volume of donor red cells can safely be infused following red cell depletion. Bone Marrow Transplant 2015; 50:536-9. [PMID: 25621802 DOI: 10.1038/bmt.2014.309] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 11/03/2014] [Accepted: 11/25/2014] [Indexed: 11/09/2022]
Abstract
Major ABO incompatible BM transplantation carries a risk of acute haemolysis. Red cell depletion reduces this risk but not all incompatible RBC (iRBCs) are removed and in children the residual volume can be significant relative to body weight. We sought to determine the volume of iRBCs that can be safely given to children. All patients receiving fresh BM from a donor with a major ABO blood group mismatch between January 2000 and July 2013 at the Hospital for Sick Children, Toronto, were included. Seventy-eight patients were identified. The median volume of iRBCs transfused was 1.6 mL/kg (range 0.1-10.6 mL/kg). Thirty-five patients had minor haemolytic events and five patients had clinically significant adverse events. Two patients, who received 3.66 and 3.9 mL iRBCs/kg, developed renal impairment and in one case hypoxia and hyperbilirubinaemia. One patient had mild hypotension that resolved with i.v. fluid. Two patients developed hypotension secondary to sepsis and unrelated to BM infusion. Although signs of haemolysis occur, with appropriate hydration and monitoring of renal function, clinically significant adverse events related to the infusion of ABO incompatible BM are rare, and, in this study, were only seen in patients receiving >3 mL/kg of iRBCs per kg.
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Affiliation(s)
- K Patrick
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - W Lau
- Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - A Gassas
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - E McDougall
- Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - J Doyle
- Division of Paediatric Haematology/Oncology, Cancer Care Manitoba, Winnipeg, Manitoba, Canada
| | - M Ali
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - J Krueger
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - S Courtney
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - C Armstrong
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - R M Egeler
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - T Schechter
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
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Kunheri B, Arjunan A, Krishnan P, Pillai B, Prasad S, Bernier-Chastagner V, Desandes E, Carrie C, Alapetite C, Hankinson T, Jones D, Handler M, Foreman N, Liu A, Smiley NP, Alden T, Hartsell W, Fangusaro J, Hill-Kayser CE, Lustig RA, Minturn JE, Both S, Waanders AJ, Belasco JB, Armstrong C, Phillips PC, Fisher MJ, Hill-Kayser CE, Paltin I, Lustig RA, Fisher MJ, Both S, Belasco JB, Cole KA, Waanders AJ, Phillips PC, Minturn JE, Wells E, Vezina G, Kilburn L, Rood B, Crozier F, Hwang E, Packer R, Janssens GO, van den Bosch S, van Kollenburg PG, Gidding CE, Schieving JH, Kaanders JH, van Lindert EJ, Kramer K, Pandit-Taskar N, Souweidane MM, Wolden S, DeSelm C, Cheung NKV, Lassen-Ramshad Y, Hansen J, Seiersen K, Petersen JBB, Mahajan A, Grosshans D, Ris D, Chintagumpala M, Okcu F, McAleer MF, Moore B, Stancel H, Minard C, Guffey D, Kahalley L, Blomgren K, Zhou K, Xie C, Zhu C, McAleer MF, Zhao Z, Weinberg J, Sandberg D, Hughes D, Mahajan A, Anderson P, Guha-Thakurta N, Muller K, Hoffmann M, Seidel C, Warmuth-Metz M, Pietsch T, Kordes U, Sander A, Rossler J, Graf N, Scheithauer H, Kortmann RD, Kramm CM, von Bueren AO, Gunther J, Sato M, Chintagumpala M, Jo E, Paulino A, Adesina A, Ketonen L, Jones J, Su J, Okcu F, Khatua S, Dauser R, Whitehead W, Weinberg J, Mahajan A, Gandola L, Pecori E, Biassoni V, Chiruzzi C, Schiavello E, Meroni S, Spreafico F, Pignoli E, Massimino M, Jalali R, Krishna U, Gupta T, Goswami S, Deodhar J, Dutta D, Kannan S, Goel A, Sarin R, Sastry J, Ronghe M, Murphy D, Forbes K, Jones R, Cowie F, Brown J, Indelicato D, Goksel EO, Tezcanli E, Bilge H, Yasemin, Yarar Y, Sato M, Gunther J, Mahajan A, Jo E, Paulino A, Adesina A, Jones J, Ketonen L, Su J, Okcu M, Khatua S, Dauser R, Whitehead W, Weinberg J, Chintagumpala M, Paulino A, Jo E, Sato M, Su J, Okcu MF, Mahajan A, Dauser R, Whitehead W, Adesina A, Chintagumpala M, Danielsson A, Tisell M, Rydenhag B, Caren H. RADIATION ONCOLOGY. Neuro Oncol 2014; 16:i117-i122. [PMCID: PMC4046296 DOI: 10.1093/neuonc/nou080] [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: 09/10/2023] Open
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21
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Huber GM, Blok HP, Butuceanu C, Gaskell D, Horn T, Mack DJ, Abbott D, Aniol K, Anklin H, Armstrong C, Arrington J, Assamagan K, Avery S, Baker OK, Barrett B, Beise EJ, Bochna C, Boeglin W, Brash EJ, Breuer H, Chang CC, Chant N, Christy ME, Dunne J, Eden T, Ent R, Fenker H, Gibson EF, Gilman R, Gustafsson K, Hinton W, Holt RJ, Jackson H, Jin S, Jones MK, Keppel CE, Kim PH, Kim W, King PM, Klein A, Koltenuk D, Kovaltchouk V, Liang M, Liu J, Lolos GJ, Lung A, Margaziotis DJ, Markowitz P, Matsumura A, McKee D, Meekins D, Mitchell J, Miyoshi T, Mkrtchyan H, Mueller B, Niculescu G, Niculescu I, Okayasu Y, Pentchev L, Perdrisat C, Pitz D, Potterveld D, Punjabi V, Qin LM, Reimer PE, Reinhold J, Roche J, Roos PG, Sarty A, Shin IK, Smith GR, Stepanyan S, Tang LG, Tadevosyan V, Tvaskis V, van der Meer RLJ, Vansyoc K, Van Westrum D, Vidakovic S, Volmer J, Vulcan W, Warren G, Wood SA, Xu C, Yan C, Zhao WX, Zheng X, Zihlmann B. Separated response function ratios in exclusive, forward π(±) electroproduction. Phys Rev Lett 2014; 112:182501. [PMID: 24856691 DOI: 10.1103/physrevlett.112.182501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Indexed: 06/03/2023]
Abstract
The study of exclusive π(±) electroproduction on the nucleon, including separation of the various structure functions, is of interest for a number of reasons. The ratio RL=σL(π-)/σL(π+) is sensitive to isoscalar contamination to the dominant isovector pion exchange amplitude, which is the basis for the determination of the charged pion form factor from electroproduction data. A change in the value of RT=σT(π-)/σT(π+) from unity at small -t, to 1/4 at large -t, would suggest a transition from coupling to a (virtual) pion to coupling to individual quarks. Furthermore, the mentioned ratios may show an earlier approach to perturbative QCD than the individual cross sections. We have performed the first complete separation of the four unpolarized electromagnetic structure functions above the dominant resonances in forward, exclusive π(±) electroproduction on the deuteron at central Q(2) values of 0.6, 1.0, 1.6 GeV(2) at W=1.95 GeV, and Q(2)=2.45 GeV(2) at W=2.22 GeV. Here, we present the L and T cross sections, with emphasis on RL and RT, and compare them with theoretical calculations. Results for the separated ratio RL indicate dominance of the pion-pole diagram at low -t, while results for RT are consistent with a transition between pion knockout and quark knockout mechanisms.
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Affiliation(s)
- G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - H P Blok
- VU university, NL-1081 HV Amsterdam, The Netherlands and NIKHEF, Postbus 41882, NL-1009 DB Amsterdam, The Netherlands
| | - C Butuceanu
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Horn
- Catholic University of America, Washington, DC 20064, USA
| | - D J Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Abbott
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Aniol
- California State University Los Angeles, Los Angeles, California 90032, USA
| | - H Anklin
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Florida International University, Miami, Florida 33119, USA
| | - C Armstrong
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - J Arrington
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - K Assamagan
- Hampton University, Hampton, Virginia 23668, USA
| | - S Avery
- Hampton University, Hampton, Virginia 23668, USA
| | - O K Baker
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Hampton University, Hampton, Virginia 23668, USA
| | - B Barrett
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3 Canada
| | - E J Beise
- University of Maryland, College Park, Maryland 20742, USA
| | - C Bochna
- University of Illinois, Champaign, Illinois 61801, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33119, USA
| | - E J Brash
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - H Breuer
- University of Maryland, College Park, Maryland 20742, USA
| | - C C Chang
- University of Maryland, College Park, Maryland 20742, USA
| | - N Chant
- University of Maryland, College Park, Maryland 20742, USA
| | - M E Christy
- Hampton University, Hampton, Virginia 23668, USA
| | - J Dunne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Eden
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Norfolk State University, Norfolk, Virginia 23504, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Fenker
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E F Gibson
- California State University, Sacramento, California 95819, USA
| | - R Gilman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - K Gustafsson
- University of Maryland, College Park, Maryland 20742, USA
| | - W Hinton
- Hampton University, Hampton, Virginia 23668, USA
| | - R J Holt
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Jackson
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Jin
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - M K Jones
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - C E Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Hampton University, Hampton, Virginia 23668, USA
| | - P H Kim
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - W Kim
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - P M King
- University of Maryland, College Park, Maryland 20742, USA
| | - A Klein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D Koltenuk
- University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - V Kovaltchouk
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - M Liang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Liu
- University of Maryland, College Park, Maryland 20742, USA
| | - G J Lolos
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - A Lung
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D J Margaziotis
- California State University Los Angeles, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33119, USA
| | | | - D McKee
- New Mexico State University, Las Cruces, New Mexico 88003-8001, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mitchell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - H Mkrtchyan
- A.I. Alikhanyan National Science Laboratory, Yerevan 0036, Armenia
| | - B Mueller
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - I Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | | | - L Pentchev
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - C Perdrisat
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - D Pitz
- DAPNIA/SPhN, CEA/Saclay, F-91191 Gif-sur-Yvette, France
| | - D Potterveld
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - L M Qin
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Reinhold
- Florida International University, Miami, Florida 33119, USA
| | - J Roche
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P G Roos
- University of Maryland, College Park, Maryland 20742, USA
| | - A Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3 Canada
| | - I K Shin
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Stepanyan
- A.I. Alikhanyan National Science Laboratory, Yerevan 0036, Armenia
| | - L G Tang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Hampton University, Hampton, Virginia 23668, USA
| | - V Tadevosyan
- A.I. Alikhanyan National Science Laboratory, Yerevan 0036, Armenia
| | - V Tvaskis
- VU university, NL-1081 HV Amsterdam, The Netherlands and NIKHEF, Postbus 41882, NL-1009 DB Amsterdam, The Netherlands
| | | | - K Vansyoc
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D Van Westrum
- University of Colorado, Boulder, Colorado 80309, USA
| | - S Vidakovic
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - J Volmer
- VU university, NL-1081 HV Amsterdam, The Netherlands and DESY, Hamburg, Germany
| | - W Vulcan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G Warren
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Xu
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - C Yan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W-X Zhao
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - X Zheng
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B Zihlmann
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and University of Virginia, Charlottesville, Virginia 22901, USA
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Copel M, Kuroda MA, Gordon MS, Liu XH, Mahajan SS, Martyna GJ, Moumen N, Armstrong C, Rossnagel SM, Shaw TM, Solomon PM, Theis TN, Yurkas JJ, Zhu Y, Newns DM. Giant piezoresistive on/off ratios in rare-earth chalcogenide thin films enabling nanomechanical switching. Nano Lett 2013; 13:4650-4653. [PMID: 24016226 DOI: 10.1021/nl401710f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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
Sophisticated microelectromechanical systems for device and sensor applications have flourished in the past decade. These devices exploit piezoelectric, capacitive, and piezoresistive effects, and coupling between them. However, high-performance piezoresistivity (as defined by on/off ratio) has primarily been observed in macroscopic single crystals. In this Letter, we show for the first time that rare-earth monochalcogenides in thin film form can modulate a current by more than 1000 times due to a pressure-induced insulator to metal transition. Furthermore, films as thin as 8 nm show a piezoresistive response. The combination of high performance and scalability make these promising candidates for nanoscale applications, such as the recently proposed piezoelectronic transistor (PET). The PET would mechanically couple a piezoelectric thin film with a piezoresistive switching layer, potentially scaling to higher speeds and lower powers than today's complementary metal-oxide-semiconductor technology.
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Affiliation(s)
- M Copel
- IBM Research Division, T. J. Watson Research Center , P.O. Box 218, Yorktown Heights, New York 10598, United States
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Liu E, Armstrong C, Spiegelman D, Chalamilla G, Njelekela M, Hawkins C, Hertzmark E, Li N, Aris E, Muhihi A, Semu H, Fawzi W. First-line antiretroviral therapy and changes in lipid levels over 3 years among HIV-infected adults in Tanzania. Clin Infect Dis 2013; 56:1820-8. [PMID: 23449270 DOI: 10.1093/cid/cit120] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND With the rapid rollout of antiretroviral therapy (ART) in sub-Saharan Africa (SSA), there has been an increasing concern about cardiovascular risks related to ART. However, data from human immunodeficiency virus (HIV)-infected populations from this region are very limited. METHODS Among 6385 HIV-infected adults in Dar es Salaam, Tanzania, we investigated the nonfasting lipid changes over 3 years following ART initiation and their associations with different first-line ART agents that are commonly used in SSA. RESULTS In the first 6 months of ART, the prevalence of dyslipidemia decreased from 69% to 54%, with triglyceride (TG) decreasing from 127 mg/dL to 113 mg/dL and high-density lipoprotein (HDL) cholesterol increasing from 39 mg/dL to 52 mg/dL. After 6 months, TG returned to its baseline level and increased to 139 mg/dL at 3 years; total cholesterol and low-density lipoprotein cholesterol continued to increase whereas HDL cholesterol leveled off. The prevalence of dyslipidemia increased to 73% after a 3-year follow-up. In multivariate analyses, patients on zidovudine-containing regimens had a greater reduction in TG levels at 6 months (-16.0 vs -6.3 mg/dL), and a lower increase at 3 years compared to patients on stavudine-containing regimens (2.1 vs 11.7 mg/dL, P < .001); patients on nevirapine-based regimens had a higher increase in HDL cholesterol levels at 3 years compared to those on efavirenz-based regimens (13.6 vs 9.5 mg/dL, P = .01). CONCLUSIONS Our findings support the latest World Health Organization guidelines on the substitution of stavudine in first-line ART in resource-limited settings, and provide further evidence for selection of lipid-friendly ART for patients in SSA.
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Affiliation(s)
- Enju Liu
- Department of Global Health and Population, Harvard School of Public Health, 1633 Tremont St, Rm 106, Boston, MA 02120, USA.
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Sherry N, Qin J, Fuller MS, Xie Y, Mola O, Bauer M, McIntyre NS, Maxwell D, Liu D, Matias E, Armstrong C. Remote Internet access to advanced analytical facilities: a new approach with Web-based services. Anal Chem 2012; 84:7283-91. [PMID: 22894172 DOI: 10.1021/ac301513b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Over the past decade, the increasing availability of the World Wide Web has held out the possibility that the efficiency of scientific measurements could be enhanced in cases where experiments were being conducted at distant facilities. Examples of early successes have included X-ray diffraction (XRD) experimental measurements of protein crystal structures at synchrotrons and access to scanning electron microscopy (SEM) and NMR facilities by users from institutions that do not possess such advanced capabilities. Experimental control, visual contact, and receipt of results has used some form of X forwarding and/or VNC (virtual network computing) software that transfers the screen image of a server at the experimental site to that of the users' home site. A more recent development is a web services platform called Science Studio that provides teams of scientists with secure links to experiments at one or more advanced research facilities. The software provides a widely distributed team with a set of controls and screens to operate, observe, and record essential parts of the experiment. As well, Science Studio provides high speed network access to computing resources to process the large data sets that are often involved in complex experiments. The simple web browser and the rapid transfer of experimental data to a processing site allow efficient use of the facility and assist decision making during the acquisition of the experimental results. The software provides users with a comprehensive overview and record of all parts of the experimental process. A prototype network is described involving X-ray beamlines at two different synchrotrons and an SEM facility. An online parallel processing facility has been developed that analyzes the data in near-real time using stream processing. Science Studio and can be expanded to include many other analytical applications, providing teams of users with rapid access to processed results along with the means for detailed discussion of their significance.
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Affiliation(s)
- N Sherry
- Faculty of Science, The University of Western Ontario, London, ON, Canada
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Armstrong C, Pollock-BarZiv S, Doyle J, Egeler M, Gassas A, Schechter T. A Prospective Comparison of Self Reported Quality of Life of Children and Their Parents After Pediatric Hematopoietic Stem-Cell Transplantation. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Ingles J, Sarina T, Evans A, Yeates L, Kawa J, Hunt L, Connell V, Gray B, Armstrong C, Ogden K, Davis A, Weintraub R, Vohra J, McTaggart D, Winship I, McGaughran J, Atherton J, Semsarian C. The National Genetic Heart Disease Registry: An Update. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Flinn F, Armstrong C. Junior doctors' extended work hours and the effects on their performance: the Irish case. Int J Qual Health Care 2011; 23:210-7. [DOI: 10.1093/intqhc/mzq088] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Armstrong C, McTaggart D, Ogden K, DeSilva D. Hypertrophic Cardiomyopathy in a Northern Tasmanian Population: A Pilot Study. Heart Lung Circ 2011. [DOI: 10.1016/j.hlc.2011.05.119] [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: 11/15/2022]
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Ingles J, Yeates L, Kawa J, Armstrong C, Thompson T, Connell V, DeSilva D, Davis A, Weintraub R, Vohra J, Winship I, McTaggart D, McGaughran J, Atherton J, Semsarian C. The Australian National Genetic Heart Disease Registry: An Update. Heart Lung Circ 2011. [DOI: 10.1016/j.hlc.2011.05.544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kawa J, Armstrong C, DeSilva D, Ingles J, Ogden K, Semsarian C, McTaggart D. Genetic Heart Diseases in Tasmania. Heart Lung Circ 2011. [DOI: 10.1016/j.hlc.2011.05.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Escabi Y, San Miguel L, Judd T, Hertza J, Nicholson J, Schiff W, Bell C, Estes B, Millikin C, Shelton P, Marotta P, Wingler I, Barth J, Parmenter B, Andrews G, Riordan P, Lipinski D, Sawyer J, Brewer V, Kirk J, Green C, Kirkwood M, Brooks B, Fay T, Barlow K, Chelune G, Duff K, Wang A, Franchow E, Card S, Zamrini E, Foster N, Duff K, Chelune G, Wang A, Card S, Franchow E, Zamrini E, Foster N, Green D, Polikar R, Clark C, Kounios J, Malek-Ahmadi M, Kataria R, Belden C, Connor D, Pearson C, Jacobson S, Yaari R, Singh U, Sabbagh M, Manning K, Arnold S, Moelter S, Davatzikos C, Clark C, Moberg P, Singer R, Seelye A, Smith A, Schmitter-Edgecombe M, Viamonte S, Murman D, West S, Fonseca F, McCue R, Golden C, Cox D, Crowell T, Fazeli P, Vance D, Ross L, Ackerman M, Hill B, Tremont G, Davis J, Westervelt H, Alosco M, O'Connor K, Ahearn D, Pella R, Jain G, Noggle C, Sohi J, Jeetwani A, Thompson J, Barisa M, Sohi J, Noggle C, Jeetwani A, Jain S, Thompson J, Barisa M, Vanderslice-Barr J, Gillen R, Zimmerman E, Holdnack J, Creamer S, Rice J, Fitzgerald K, Elbin R, Patwardhan S, Covassin T, Kiewel N, Kontos A, Meyers C, Hakun J, Ravizza S, Berger K, Paltin I, Hertza J, Phillips F, Estes B, Schiff W, Bell C, Anderson J, Horton A, Reynolds C, Huckans M, Vandenbark A, Dougherty M, Loftis J, Langill M, Roberts R, Iverson G, Appel-Cresswell S, Stoessl A, Lazarus J, Olcese R, Juncos J, McCaskell D, Walsh K, Allen E, Shubeck L, Hamilton D, Novack G, Sherman S, Livingson R, Schmitt A, Stewart R, Doyle K, Smernoff E, West S, Galusha J, Hua S, Mattingly M, Rinehardt E, Benbadis S, Borzog A, Rogers-Neame N, Vale F, Frontera A, Schoenberg M, Rosenbaum K, Norman M, Woods S, Houshyarnejad A, Filoteo W, Corey-Bloom J, Pachet A, Larco C, Raymond M, Rinehardt E, Mattingly M, Golden C, Benbadis S, Borzog A, Rogers-Neame N, Vale F, Frontera A, Schoenberg M, Schmitt A, Stewart R, Livingston R, Doyle K, Copenheaver D, Smernoff E, Werry A, Claunch J, Galusha J, Uysal S, Mazzeffi M, Lin H, Reich D, August-Fedio A, Sexton J, Zand D, Keller J, Thomas T, Fedio P, Austin A, Millikin C, Baade L, Shelton P, Yamout K, Marotta J, Boatwright B, Kardel P, Heinrichs R, Blake T, Silverberg N, Anton H, Bradley E, Lockwood C, Hull A, Poole J, Demadura T, Storzbach D, Acosta M, Tun S, Hull A, Greenberg L, Lockwood C, Hutson L, Belsher B, Sullivan C, Poole J, La Point S, Harrison A, Packer R, Suhr J, Heilbronner R, Lange R, Iverson G, Brubacher J, Lange R, Waljas M, Iverson G, Hakulinen U, Dastidar P, Trammell B, Hartikainen K, Soimakallio S, Ohman J, Lee-Wilk T, Ryan P, Kurtz S, Dux M, Dischinger P, Auman K, Murdock K, Mazur-Mosiewicz A, Kane R, Lockwood C, Hull A, Poole J, MacGregor A, Watt D, Puente A, Marceaux J, Dilks L, Carroll A, Dean R, Ashworth B, Dilks S, Thrasher A, Carbonaro S, Blancett S, Ringdahl E, Finton M, Thaler N, Drane D, Umuhoza D, Barber B, Schoenberg M, Umuhoza D, Allen D, Roebuck-Spencer T, Vincent A, Schlegel R, Gilliland K, Lazarus T, Brown F, Katz L, Mucci G, Franchow E, Suchy Y, Kraybill M, Eastvold A, Funes C, Stern S, Morris M, Graham L, Parikh M, Hynan L, Buchbinder D, Grosch M, Weiner M, Cullum M, Hart J, Lavach J, Holcomb M, Allen R, Holcomb M, Renee A, Holland A, Chang R, Erdodi L, Hellings J, Catoe A, Lajiness-O'Neill R, Whiteside D, Smith A, Brown J, Hardin J, Rutledge J, Carmona J, Wang R, Harrison D, Horton A, Reynolds C, Horton A, Reynolds C, Jurado M, Monroy M, Eddinger K, Serrano M, Rosselli M, Chakravarti P, Riccio C, Banville F, Schretlen D, Wahlberg A, Vannorsdall T, Yoon H, Sung K, Simek A, Gordon B, Vaughn C, Kibby M, Barwick F, Arnett P, Rabinowitz A, Vargas G, Barwick F, Arnett P, Rabinowitz A, Vargas G, Davis J, Ramos C, Hynd G, Sherer C, Stone M, Wall J, Davis J, Bagley A, McHugh T, Axelrod B, Hanks R, Denning J, Gervais R, Dougherty M, Sellbom M, Wygant D, Klonoff P, Lange R, Iverson G, Carone D, O'Connor Pennuto T, Kluck A, Ball J, Pella R, Rice J, Hietpas-Wilson T, McCoy K, VanBuren K, Hilsabeck R, Shahani L, Noggle C, Jain G, Sohi J, Thomspon J, Barisa M, Golden C, Vincent A, Roebuck-Spencer T, Cooper D, Bowles A, Gilliland K, Womble M, Rohling M, Gervais R, Greiffenstein M, Harrison A, Jones K, Suhr J, Armstrong C, Mazur-Mosiewicz A, Holcomb M, Trammell B, Dean R, Puente A, Whigham K, Rodriguez M, West S, Golden C, Kelley E, Poole J, Larco C, May N, Nemeth D, Olivier T, Whittington L, Hamilton J, Steger A, McDonald K, Jeffay E, Gammada E, Zakzanis K, Ramanathan D, Wardecker B, Slocomb J, Hillary F, Rohling M, Demakis G, Larrabee G, Binder L, Ploetz D, Schatz P, Smith A, Stolberg P, Thayer N, Mayfield J, Jones W, Allen D, Storzbach D, Demadura T, Tun S, Sutton G, Ringdahl E, Thaler N, Barney S, Mayfield J, Pinegar J, Allen D, Terranova J, Kazakov D, McMurray J, Mayfield J, Allen D, Villemure R, Nolin P, Le Sage N, Yeung E, Zakzanis K, Gammada E, Jeffay E, Yi A, Small S, Macciocchi S, Barlow K, Seel R, Rabinowitz A, Arnett P, Rabinowitz A, Barwick F, Arnett P, Bailey T, Brown M, Whiteside D, Waters D, Golden C, Grzybkowska A, Wyczesany M, Katz L, Brown F, Roth R, McNeil K, Vroman L, Semrud-Clikeman T, Terrie, Seydel K, Holster J, Corsun-Ascher C, Golden C, Holster J, Corsun-Ascher C, Golden C, Bolanos J, Bergman B, Rodriguez M, Patel F, Frisch D, Golden C, Brooks B, Holdnack J, Iverson G, Brown M, Lowry N, Whiteside D, Bailey T, Dougherty M, West S, Golden C, Estes B, Bell C, Hertza J, Dennison A, Jones K, Holster J, Caorsun-Ascher C, Armstrong C, Golden C, Mackelprang J, Karle J, Najmabadi S, Valley-Gray S, Cash R, Gonzalez E, Metoyer K, Holster J, Golden C, Natta L, Gomez R, Trettin L, Tennakoon L, Schatzberg A, Keller J, Davis J, Sherer C, Wall J, Ramos C, Patterson C, Shaneyfelt K, DenBoer J, Hall S, Gunner J, Miele A, Lynch J, McCaffrey R, Lo T, Cottingham M, Aretsen T, Boone K, Goldberg H, Miele A, Gunner J, Lynch J, McCaffrey R, Miele A, Benigno A, Gunner J, Leigh K, Lynch J, Drexler M, McCaffrey R, Weiss E, Ploetz D, Rohling M, Lankey M, Womble M, Yeung S, Silverberg N, Zakzanis K, Amirthavasagam S, Jeffay E, Gammada E, Yeung E, McDonald K, Constantinou M, DenBoer J, Hall S, Lee S, Klaver J, Kibby M, Stern S, Morris M, Morris R, Whittington L, Nemeth D, Olivier T, May N, Hamilton J, Steger A, Chan R, West S, Golden C, Landstrom M, Dodzik P, Boneff T, Williams T, Robbins J, Martin P, Prinzi L, Golden C, Barber B, Mucci G, Brzinski B, Frish D, Rosen S, Golden C, Hamilton J, Nemeth D, Martinez A, Kirk J, Exalona A, Wicker N, Green C, Broshek D, Kao G, Kirkwood M, Quigg M, Cohen M, Riccio C, Olson K, Rice J, Dougherty M, Golden C, Sharma V, Rodriguez M, Golden C, Paltin I, Walsh K, Rosenbaum K, Copenheaver D, Zand D, Kardel P, Acosta M, Packer R, Vasserman M, Fonseca F, Tourgeman I, Stack M, Demsky Y, Golden C, Horwitz J, McCaffey R, Ojeda C, Kadushin F, Wingler I, Lazarus G, Green J, Barth J, Puente A, Parikh M, Graham L, Hynan L, Grosch M, Weiner M, Cullum C, Tourgeman I, Bure-Reyes A, Stewart J, Stack M, Demsky Y, Golden C, Zhang J, Tourgeman I, Demsky Y, Stack M, Golden C, Bures-Reye A, Stewart J, Tourgeman I, Demsky Y, Stack M, Golden C, Finlay L, Goldberg H, Arentsen T, Lo T, Moriarti T, Mackelprang J, Karle J, Aragon P, Gonzalez E, Valley-Gray S, Cash R, Mackelprang J, Karle J, Hardie R, Cash R, Gonzalez E, Valley-Gray S, Mason J, Keller J, Gomez R, Trettin L, Schatzberg A, Moore R, Mausbach B, Viglione D, Patterson T, Morrow J, Barber B, Restrepo L, Mucci G, Golden C, Buchbinder D, Chang R, Wang R, Pearlson J, Scarisbrick D, Rodriguez M, Golden C, Restrepo L, Morrow J, Golden C, Switalska J, Torres I, DeFreitas C, DeFreitas V, Bond D, Yatham L, Zakzanis K, Gammada E, Jeffay E, Yeung E, Amirathavasagam S, McDonald K, Hertza J, Bell C, Estes B, Schiff W, Bayless J, McCormick L, Long J, Brumm M, Lewis J, Benigno A, Leigh K, Drexler M, Weiss E, Bharadia V, Walker L, Freedman M, Atkins H, Jackson A, Perna R, Cooper D, Lau D, Lyons H, Culotta V, Griffith K, Coiro M, Papadakis A, Weden S, Sestito N, Brennan L, Benjamin T, Ciaudelli B, Fanning M, Giovannetti T, Chute D, Vathhauer K, Steh B, Osuji J, Steh B, Katz D, Ackerman M, Vance D, Fazeli P, Ross L, Strang J, Strauss A, Bienia K, Hollingsworth D, Ensley M, Atkins J, Grigorovich A, Bell C, Fish J, Hertza J, Leach L, Schiff W, Gomez M, Estes B, Dennison A, Davis A, Roberds E, Lutz J, Byerley A, Mazur-Mosiewicz A, Davis M, Sutton S, Moses J, Doan B, Hanna M, Adam G, Wile A, Butler M, Self B, Heaton K, Brininger T, Edwards M, Johnson K, O'Bryan S, Williams J, Joes K, Frazier D, Moses J, Giesbrecht C, Nielson H, Barone C, Thornton A, Vila-Rodriguez F, Paquet F, Barr A, Vertinsky T, Lang D, Honer W, Hart J, Lavach J, Hietpas-Wilson T, Pella R, McCoy K, VanBuren K, Hilsabeck R, James S, Robillard R, Holder C, Long M, Sandhu K, Padua M, Moses J, Lutz J, Mazur-Mosiewicz A, Dean R, Olivier T, Nemeth D, Whittington L, May N, Hamilton J, Steger A, Roberg B, Hancock L, Jacobson J, Tyrer J, Lynch S, Bruce J, Sordahl J, Hertza J, Bell C, Estes B, Schiff W, Sousa J, Jerram M, Wiebe-Moore D, Susmaras T, Gansler D, Vertinski M, Smith L, Thaler N, Mayfield J, Allen D, Buscher L, Jared B, Hancock L, Roberg B, Tyrer J, Lynch S, Choi W, Lai S, Lau E, Li A, Covassin T, Elbin R, Kontos A, Larson E, Hubley A, Lazarus G, Puente A, Ojeda C, Mazur-Mosiewicz A, Trammell B, Dean R, Patwardhan S, Fitzgerald K, Meyers C, Wefel J, Poole J, Gray M, Utley J, Lew H, Riordan P, Sawyer J, Buscemi J, Lombardo T, Barney S, Allen D, Stolberg P, Mayfield J, Brown S, Tussey C, Barrow M, Marcopulos B, Kingma J, Heinly M, Fazio R, Griswold S, Denney R, Corney P, Crossley M, Edwards M, O'Bryant S, Hobson V, Hall J, Barber R, Zhang S, Johnson L, Diaz-Arrastia R, Hall J, Johnson L, Barber R, Cullum M, Lacritz L, O'Bryant S, Lena P, Robbins J, Martin P, Stewart J, Golden C, Martin P, Prinzi L, Robbins J, Golden C, Ruchinskas R, West S, Fonseca F, Rice J, McCue R, Golden C, Fischer A, Yeung S, Thornton W, Rossetti H, Bernardo K, Weiner M, Cullum C, Lacritz L, Yeung S, Fischer A, Thornton W, Zec R, Kohlrus S, Fritz S, Robbs R, Ala T, Cummings T, Webbe F, Srinivasan V, Gavett B, Kowall N, Qiu W, Jefferson A, Green R, Stern R, Hill B, Su T, Correia S, O'Bryant S, Gong G, Spallholz J, Boylan M, Edwards M, Hargrave K, Johnson L, Stewart J, Golden C, Broennimann A, Wisniewski A, Austin B, Bens M, Carroll C, Knee K, Mittenberg W, Zimmerman A, Mazur-Mosiewicz A, Roberds E, Dean R, Anderson C, Parmenter B, Blackwell E, Silverberg N, Douglas K, Gassermar M, Kranzler H, Chan G, Gelenter J, Arias A, Farrer L, Giummarra J, Bowden S, Cook M, Murphy M, Hancock L, Bruce J, Peterson S, Tyrer J, Murphy M, Jacobson J, Lynch S, Holder C, Mauseth T, Robillard R, Langill M, Roberts R, Iverson G, Appel-Cresswell S, Stoessl A, Macleod L, Bowden S, Partridge R, Webster B, Heinrichs R, Baade L, Sandhu K, Padua M, Long M, Moses J, Schmitt A, Werry A, Hu S, Stewart R, Livingston R, Deitrick S, Doyle K, Smernoff E, Schoenberg M, Rinehardt E, Mattingly M, Borzog A, Rodgers-Neame N, Vale F, Frontera A, Benbadis S, Ukueberuwa D, Arnett P, Vargas G, Riordan P, Arnett P, Lipinski D, Sawyer J, Brewer V, Viner K, Lee G, Walker L, Berrigan L, Ress L, Cheng A, Freedma M, Hellings J, Whiteside D, Brown J, Singer R, Woods S, Weber E, Cameron M, Dawson M, Grant I, Frisch D, Brzinski B, Golden C, Hutton J, Vidal O, Puente A, Klaver J, Lee S, Kibby M, Mireles G, Anderson B, Davis J, Rosen S, Scarisbrick D, Brzinski B, Golden C, Simek A, Vaughn C, Wahlberg A, Yoon H, Riccio C, Steger A, Nemeth D, Thorgusen S, Suchy Y, Rau H, Williams P, Wahlberg A, Yoon V, Simek A, Vaughn C, Riccio C, Whitman L, Bender H, Granader Y, Freshman A, MacAllister W, Freshman A, Bender H, Whitman L, Granader Y, MacAllister W, Yoon V, Simek A, Vaughn C, Wahlberg A, Riccio C, Noll K, Cullum C, O'Bryant S, Hall J, Simpson C, Padua M, Long M, Sandhu K, Moses J, Scarisbrick D, Holster J, Corsun-Ascher C, Golden C, Stang B, Trettin L, Rogers E, Saleh M, Che A, Tennakoon L, Keller J, Schatzberg A, Gomez R, Tayim F, Moses J, Morris R, Thaler N, Lechuga D, Cross C, Salinas C, Reynolds C, Mayfield J, Allen D, Webster B, Partridge R, Heinrichs R, Badde L, Weiss E, Antoniello D, McGinley J, Gomes W, Masur D, Brooks B, Holdnack J, Iverson G, Banville F, Nolin P, Henry M, Lalonde S, Dery M, Cloutier J, Green J, Sokol D, Lowery K, Hole M, Helmus A, Teat R, DelMastro C, Paquette B, Grosch M, Hynan L, Graham L, Parikh M, Weiner M, Cullum M, Hubley A, Lutz J, Dean R, Paterson T, O'Rourke N, Thornton W, Randolph J, Suffiield J, Crockett D, Spreen O, Trammell B, Mazur-Mosiewicz A, Holcomb M, Dean R, Busse M, Wald D, Whiteside D, Breisch A, Fieldstone S, Vannorsda T, Lassen-Greene C, Gordon B, Schretlen D, Launeanu M, Hubley A, Maruyama R, Cuesta G, Davis J, Takahashi T, Shinoda H, Gregg N, Davis J, Cheung S, Takahashi T, Shinoda H, Gregg N, Holcomb M, Mazur A, Trammell B, Dean R, Perna R, Jackson A, Villar R, Ager D, Ellicon B, Als L, Nadel S, Cooper M, Pierce C, Hau S, Vezir S, Picouto M, Sahakian B, Garralda E, Mucci G, Barber B, Semrud-Clikeman M, Goldenring J, Bledsoe J, Vroman L, Crow S, Zimmerman A, Mazur-Mosiewicz A, Roberds E, Dean R, Sokol D, Hole M, Teat R, Paquett B, Albano J, Broshek D, Elias J, Brennan L, Chakravarti P, Schultheis L, Kibby M, Weisser V, Hynd G, Ang J, Crockett D, Puente A, Weiss E, Longman R, Antoniello D, Axelrod B, McGinley J, Gomes W, Masur D, Davis A, Lutz J, Roberds E, Williams R, Gupta A, Estes B, Dennison A, Schiff W, Hertza J, Ferrari M. Grand Rounds. Arch Clin Neuropsychol 2010. [DOI: 10.1093/arclin/acq056] [Citation(s) in RCA: 5] [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: 11/13/2022] Open
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Nguyen-Van-Tam JS, Openshaw PJM, Hashim A, Gadd EM, Lim WS, Semple MG, Read RC, Taylor BL, Brett SJ, McMenamin J, Enstone JE, Armstrong C, Nicholson KG. Risk factors for hospitalisation and poor outcome with pandemic A/H1N1 influenza: United Kingdom first wave (May-September 2009). Thorax 2010; 65:645-51. [PMID: 20627925 PMCID: PMC2921287 DOI: 10.1136/thx.2010.135210] [Citation(s) in RCA: 188] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Accepted: 04/21/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND During the first wave of pandemic H1N1 influenza in 2009, most cases outside North America occurred in the UK. The clinical characteristics of UK patients hospitalised with pandemic H1N1 infection and risk factors for severe outcome are described. METHODS A case note-based investigation was performed of patients admitted with confirmed pandemic H1N1 infection. RESULTS From 27 April to 30 September 2009, 631 cases from 55 hospitals were investigated. 13% were admitted to a high dependency or intensive care unit and 5% died; 36% were aged <16 years and 5% were aged > or = 65 years. Non-white and pregnant patients were over-represented. 45% of patients had at least one underlying condition, mainly asthma, and 13% received antiviral drugs before admission. Of 349 with documented chest x-rays on admission, 29% had evidence of pneumonia, but bacterial co-infection was uncommon. Multivariate analyses showed that physician-recorded obesity on admission and pulmonary conditions other than asthma or chronic obstructive pulmonary disease (COPD) were associated with a severe outcome, as were radiologically-confirmed pneumonia and a raised C-reactive protein (CRP) level (> or = 100 mg/l). 59% of all in-hospital deaths occurred in previously healthy people. CONCLUSIONS Pandemic H1N1 infection causes disease requiring hospitalisation of previously fit individuals as well as those with underlying conditions. An abnormal chest x-ray or a raised CRP level, especially in patients who are recorded as obese or who have pulmonary conditions other than asthma or COPD, indicate a potentially serious outcome. These findings support the use of pandemic vaccine in pregnant women, children <5 years of age and those with chronic lung disease.
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Affiliation(s)
- J S Nguyen-Van-Tam
- Division of Epidemiology and Public Health, University of Nottingham, Clinical Sciences Building, City Hospital, Hucknall Road, Nottingham NG5 1PB, UK.
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Phillips M, Haines M, Peck E, Lee H, Phillips B, Wein B, Bekenstein J, O'Grady J, Schoenberg M, Ogrocki P, Maddux B, Whitney C, Gould D, Riley D, Maciunas R, Espe-Pfeifer P, Arguello J, Taber S, Duff K, Fields A, Newby R, Weissgerber K, Epping A, Panepinto J, Scott P, Reesman J, Zabel A, Wodka E, Ferenc L, Comi A, Cohen N, Bigelow S, McCrea Jones L, Sandoval R, Vilar-Lopez R, Puente N, Hidalgo-Ruzante N, Bure A, Ojeda C, Puente A, Zolten A, Mallory L, Heyanka D, Golden C, McCue R, Heyanka D, Mackelprang J, Reuther B, Golden C, Odland A, Scarisbrick D, Heyanka D, Martin P, Golden C, Mazur-Mosiewicz A, Holcomb M, Dean R, Schneider J, Morgan D, Scott J, Leber W, Adams R, Marceaux J, Triebel K, Griffith H, Gifford K, Potter E, Webbe F, Barker W, Loewenstein D, Duara R, Gifford K, Mahaney T, Srinivasan V, Cummings T, Frankl M, Bayan R, Webbe F, Mulligan K, Duncan N, Greenaway M, Sakamoto M, Spiers M, Libon D, Pimontel M, Gavett B, Jefferson A, Nair A, Green R, Stern R, Mahaney T, Frankl M, Cummings T, Mulligan K, Webbe F, Lou K, Gavett B, Jefferson A, Nair A, Green R, Morere D, Gifford K, Ferro J, Ezrine G, Kiefel J, Hinton V, Greco S, Corradino G, Pantone J, MacLeod R, Stern R, Hart J, Lavach J, Pick L, Szymanski C, Ilardi D, Marcus D, Burns T, Mahle W, Jenkins P, Davis A, McDermott A, Pierson E, Freeman Floyd E, McIntosh D, Dixon F, Davis A, Boseck J, Berry K, Whited A, Gelder B, Davis A, Dodd J, Berry K, Boseck J, Koehn E, Gelder B, Riccio C, Kahn D, Perez E, Reynolds C, Scott M, Nguyen-Driver M, Ruchinskas R, Lennen D, Steiner R, Sikora D, Freeman K, Carboni J, Fong G, Fong G, Carboni J, Whigham K, O'Toole K, Schneider B, Burns T, Olivier T, Nemeth D, Whittington L, Moreau A, Webb N, Weimer M, Gontier J, Labrana J, Rioseco F, Lichtenberg P, Puente A, Puente A, Bure A, Buddin H, Teichner G, Golden C, Pacheco E, Chong J, Gold S, Mittenberg W, Miller A, Bruce J, Hancock L, Peterson S, Jacobson J, Guse E, Tyrer J, Lasater J, Fritz J, Lynch S, Yarger L, Bryant K, Zychowski L, Nippoldt-Baca L, Lehman C, Arffa S, Marceaux J, Dilks L, Arthur A, Myers B, Levy J, Blancett S, Martincin K, Thrasher A, Koushik N, McArthur S, Baird A, Foster P, Drago V, Yung R, Crucian G, Heilman K, Castellon S, Livers E, Oppenheim A, Carter C, Ganz P, San Miguel-Montes L, Escabi-Quiles Y, Allen D, Gavett B, Stern R, Nowinski C, Cantu R, Martukovich R, McKee A, Davis A, Roberds E, Lutz J, Williams R, Gupta A, Schoenberg M, Werz M, Maciunas R, Koubeissi M, Poreh A, Luders H, Barwick F, Arnett P, Morse C, Gonzalez-Heydrich J, Luna L, Rao S, McClendon J, Rotelle P, Waber D, Holland A, Boyer K, Faraone S, Whitney J, Guild D, Biederman J, Baerwald J, Ryan G, Baerwald J, Ryan G, Guerrero J, Carmona J, Parsons T, Rizzo A, Lance B, Courtney C, Baerwald J, Ryan G, Perna R, Jackson A, Luton L, O'Toole K, Harrison D, Alosco M, Emerson K, Hill B, Bauer L, Tremont G, Zychowski L, Yarger L, Kegel N, Arffa S, Crockett D, Hunt S, Parks R, Vernon-Wilkinsion R, Hietpas-Wilson T, Zartman A, Gordon S, Krueger K, VanBuren K, Yates A, Hilsabeck R, Campbell J, Riner B, Crowe S, Noggle C, Thompson J, Barisa M, Maulucci A, Noggle C, Thompson J, Barisa M, Maulucci A, Noggle C, Latham K, Thompson J, Barisa M, Maulucci A, Sumowski J, Chiaravalloti N, Lengenfelder J, DeLuca J, Iturriaga L, Henry G, Heilbronner R, Carmona J, Mittenberg W, Enders C, Stevens A, Dux M, Henry G, Heilbronner R, Mittenberg W, Enders C, Myers A, Arffa S, Holland A, Nippoldt-Baca L, Yarger L, Acocella-Stollerman J, Lee E, Peck E, Lee H, Khawaja S, Phillips B, Crockett A, Greve K, Comer C, Ord J, Etherton J, Bianchini K, Curtis K, Harrison A, Edwards M, Harrison A, Edwards M, Cottingham M, Goldberg H, Harrison D, Victor T, Perry L, Pazienza S, Boone K, Bowers T, Triebel K, Denney R, Halfaker D, Tussey C, Barber A, Martin P, Denney R, Deal W, Bailey C, Denney R, Marcopulos B, Schaefer L, Rabin L, Kakkanatt T, Popalzai A, Chantasi K, Heyanka D, Magyar Y, Cruz R, Weiss L, Schatz P, Gibney B, Lietner D, Koushik N, Brooks B, Iverson G, Horton A, Odland A, Reynolds C, Horton A, Reynolds C, Davis A, Finch W, Skierkiewicz A, Rothlisberg B, McIntosh D, Davis A, Finch W, Golden C, Chang M, McIntosh D, Rothlisberg B, Paulson S, Davis A, Starling J, Whited A, Chang M, Roberds E, Dodd J, Martin P, Goldstein G, DeFilippis N, Carlozzi N, Tulsky D, Kurkowski R, Browne K, Wortman K, Gershon R, Heyanka D, Odland A, Golden C, Rodriguez M, Myers A, West S, Golden C, Holster J, Bolanos J, Corsun-Ascher C, Golden C, Robbins J, Restrepo L, Prinzi L, Garcia J, Golden C, Holster J, Bolanos J, Garcia J, Golden C, Osgood J, Trice A, Ernst W, Mahaney T, Gifford K, Oelschlager J, Gurrea J, Tourgeman I, Odland A, Golden C, Tourgeman I, Gurrea J, Stack M, Boddy R, Demsky Y, Golden C, Judd T, Jurecska D, Holmes J, Aguerrevere L, Greve K, Capps D, Izquierdo R, Feldman C, Boddy R, Scarisbrick D, Rice J, Tourgeman I, Golden C, Scarisbrick D, Boddy R, Corsun-Ascher C, Heyanka D, Golden C, Woon F, Hedges D, Odland A, Heyanka D, Martin P, Golden C, Yamout K, Heinrichs R, Baade L, Soetaert D, Perle J, Odland A, Martin P, Golden C, Armstrong C, Bello D, Randall C, Allen D, McLaren T, Konopacki K, Peery S, Miranda F, Saleh M, Moise F, Mendoza J, Mak E, Gomez R, Mihaila E, Parrella M, White L, Harvey P, Marshall D, Gomez R, Keller J, Rogers E, Misa J, Che A, Tennakoon L, Schatzberg A, Sutton G, Allen D, Strauss G, Bello D, Armstrong C, Randall C, Duke L, Ross S, Randall C, Bello D, Armstrong C, Sutton G, Ringdahl E, Thaler N, McMurray J, Sanders L, Isaac H, Allen D, Rumble S, Klonoff P, Wilken J, Sullivan C, Fratto T, Sullivan A, McKenzie T, Ensley M, Saunders C, Quig M, Kane R, Simsarian J, Restrepo L, Rodriguez M, Robbins J, Morrow J, Golden C, Yung R, Sullivan W, Stringer K, Ferguson B, Drago V, Foster P, Lanting S, Brooks B, Iverson G, Horton A, Reynolds C, Scarisbrick D, Odland A, Perle J, Golden C, West S, Collins K, Frisch D, Golden C, Guerrero J, Baerwald J, Yung R, Sullivan W, Stringer K, Ferguson B, Drago V, Foster P, Mackelprang J, Heyanka D, Lennertz L, Morin I, Marker C, Collins M, Dodd J, Goldstein G, DeFilippis N, Holcomb M, Kimball T, Luther E, Belsher B, Botelho V, Reed R, Hernandez B, Noda A, Yesavage J, Kinoshita L, Kakos L, Gunstad J, Hughes J, Spitznagel M, Potter V, Stanek K, Szabo A, Waechter D, Josephson R, Rosneck J, Schofield H, Getz G, Magnuson S, Bryant K, Miller A, Martincin K, Pastel D, Poreh A, Davis J, Ramos C, Sherer C, Bertram D, Wall J, Bryant K, Poreh A, Magnuson S, Miller A, Martincin K, Pastel D, Gow C, Francis J, Olson L, Sautter S, Ord J, Capps D, Greve K, Bianchini K, Stettler T, Daniel M, Kleman V, Etchells M, Rabinowitz A, Barwick F, Arnett P, Proto D, Barker A, Gouvier W, Jones K, Williams J, Lockwood C, Mansoor Y, Homer-Smith E, Moses J, Stolberg P, Jones W, Krach S, Loe S, Mortimer J, Avirett E, Maricle D, Miller D, Avirett E, Mortimer J, Maricle D, Miller D, Avirett E, Mortimer J, Miller D, Maricle D, McGill C, Moneta L, Gioia G, Isquith P, Lazarus G, Puente A, Ahern D, Faust D, Bridges A, Ahern D, Faust D, Bridges A, Hobson V, Hall J, Harvey M, Spering C, Cullum M, Lacritz L, Massman P, Waring S, O'Bryant S, Frisch D, Morrow J, West S, Golden C, West S, Dougherty M, Rice J, Golden C, Morrow J, Frisch D, Pearlson J, Golden C, Thorgusen S, Watson J, Miller A, Kesner R, Levy J, Lambert A, Fazeli P, Marceaux J, Vance D, Marceaux J, Fazeli P, Vance D, Frankl M, Cummings T, Mahaney T, Webbe F, Spering C, Cooper J, Hobson V, O'Bryant S, Bolanos J, Holster J, Metoyer K, Garcia J, Golden C, Brown C, O'Toole K, Brown C, O'Toole K, Granader Y, Keller S, Bender H, Rathi S, Nass R, MacAllister W, Maehr A, Kiefel J, Bigras C, Slick D, Dewey L, Tao R, Motes M, Emslie G, Rypma B, Kahn D, Riccio C, Reynolds C, Eberle N, Mucci G, Chase A, Boyle M, Gallaway M, Bowyer S, Lajiness-O'Neill R, Gifford K, Mahaney T, Cohen R, Gorman P, Levin Allen S, O'Hara E, LeGoff D, Chute D, Barakat L, Laboy G, San Miguel-Montes L, Rios-Motta M, Pita-Garcia I, Van Horn H, Cuevas M, Ross P, Kinjo C, Basanez T, Patel S, Dinishak D, Zhou W, Ortega M, Zareie R, Lane B, Rosen A, Myers A, Domboski K, Ireland S, Mittenberg W, Mazur-Mosiewicz A, Holcomb M, Dean R, Myerson C, Katzen H, Mittel A, McClendon M, Guevara A, Nahab F, Gallo B, Levin B, Fay T, Brooks B, Sherman E, Szabo A, Gunstad J, Spitznagel M, McCaffery J, McGeary J, Paul R, Sweet L, Cohen R, Hancock L, Bruce J, Peterson S, Jacobson J, Tyrer J, Guse E, Lasater J, Fritz J, Lynch S, O'Rourke J, Queller S, Whitlock K, Beglinger L, Stout J, Duff K, Paulsen J, Kim M, Jang J, Chung J, Zukerman J, Miller S, Waterman G, Sadek J, Singer E, Heaton R, van Gorp W, Castellon S, Hinkin C, Yamout K, Baade L, Panos S, Becker B, Kim M, Foley J, Jang J, Chung J, Castellon S, Hinkin C, Kim M, Jang J, Foley J, Chung J, Miller S, Castellon S, Marcotte T, Hinkin C, Merrick E, Kazakov D, Duke L, Field R, Allen D, Mayfield J, Barney S, Thaler N, Allen D, Donohue B, Mayfield J, Mauro C, Shope C, Riber L, Dhami S, Citrome L, Tremeau F, Heyanka D, Corsun-Ascher C, Englebert N, Golden C, Block C, Sautter S, Stolberg P, Terranova J, Jones W, Allen D, Mayfield J, Ramanathan D, Medaglia J, Chiou K, Wardecker B, Slocomb J, Vesek J, Wang J, Hills E, Good D, Hillary F, Kimpton T, Kirshenbaum A, Madathil R, Trontel H, Hall S, Chiou K, Slocomb J, Ramanathan D, Medaglia J, Wardecker B, Vesek J, Wang J, Hills E, Good D, Hillary F, Salinas C, Tiedemann S, Webbe F, Williams C, Wood R, Ringdahl E, Thaler N, Hodges T, Mayfield J, Allen D, Kazakov D, Haderlie M, Terranova J, Martinez A, Allen D, Mayfield J, Medaglia J, Ramanathan D, Chiou K, Wardecker B, Franklin R, Genova H, Deluca J, Hillary F, Pastrana F, Wurst L, Zeiner H, Garcia A, Bender H, Rice J, West S, Dougherty M, Boddy R, Golden C, Tyrer J, Bruce J, Hancock L, Guse E, Jacobson J, Lynch S, Yung R, Sullivan W, Stringer K, Ferguson B, Drago V, Foster P, Scarisbrick D, Heyanka D, Frisch D, Golden C, Prinzi L, Morrow J, Robbins J, Golden C, Fallows R, Amin K, Virden T, Borgaro S, Hubel K, Miles G, Gomez R, Nazarian S, Mucci G, Moreno-Torres M, San Miguel-Montes L, Otero-Zeno T, Rios M, Douglas K, McGhee R, Sakamoto M, Spiers M, Vanderslice-Barr J, Elbin R, Covassin T, Kontos A, Larson E, Stiller-Ostrowski J, McLain M, Serina N, John S, Rautiola M, Waldstein S, Che A, Gomez R, Keller J, Tennakoon L, Marshall D, Rogers E, Misa J, Schatzberg A, Stiles M, Ericson R, Earleywine M, Ericson R, Earleywine M, Tourgeman I, Boddy R, Gurrea J, Buddin H, Golden C, Holcomb M, Mazur-Mosiewicz A, Dean R, Miele A, Lynch J, McCaffrey R, Miele A, Vanderslice-Barr J, Lynch J, McCaffrey R, Wershba R, Stevenson M, Thomas M, Sturgeon J, Youngjohn J, Morgan D, Bello D, Hollimon M, Schneider J, Edgington C, Scott J, Adams R, Morgan D, Bello D, Hollimon M, Schneider J, Edgington C, Scott J, Adams R, Heinrichs R, Baade L, Soetaert D, Barisa M, Noggle C, Thompson J, Barisa M, Noggle C, Thompson J, Barisa M, Noggle C, Thompson J, Pimental P, Riedl K, Kimsey M, Sartori A, Griffith H, Okonkwo O, Marson D, Bertisch H, Schaefer L, McKenzie S, Mittelman M, Hibbard M, Sherr R, Diller L, McTaggart A, Williams R, Troster A, Clark J, Owens T, O'Jile J, Schmitt A, Livingston R, Smernoff E, Galusha J, Piazza J, Gutierrez M, Yeager C, Hyer L, Vaughn E, LaPorte D, Schoenberg M, Werz M, Pedigo T, Lavach J, Hart J, Vyas S, Dorta N, Granader Y, Roberts E, Hill B, Musso M, Pella R, Barker A, Proto D, Gouvier W, Gibson K, Bowers T, Bowers T, Gibson K, Hinkle S, Barisa M, Noggle C, Thompson J, Thompson J, Noggle C, Barisa M, Maulucci A, Thompson J, Noggle C, Barisa M, Maulucci A, Thompson J, Noggle C, Barisa M, Maulucci A, Benitez A, Gunstad J, Spitznagel M, Szabo A, Rogers E, Gomez R, Keller J, Marshall D, Tennakoon L, Che A, Misa J, Schatzber A, Strauss G, Ringdahl E, Barney S, Jetha S, Duke L, Ross S, Watrous B, Allen D, Maucieri L, Noggle C, Barisa M, Thompson J, Maulucci A, Noggle C, Barisa M, Thompson J, Maulucci A, Noggle C, Barisa M, Thompson J, Maulucci A, Noggle C, Thompson J, Barisa M, Maulucci A, Noggle C, Thompson J, Barisa M, Maulucci A, Getz G, Dandridge A, Klein R, La Point S, Holcomb M, Mazur-Mosiewicz A, Dean R, Bailey C, Samples H, Broshek D, Barth J, Freeman J, Schatz P, Neidzwski K, Moser R, Reesman J, Suli-Moci E, Wells C, Moneta L, Dean P, Gioia G, Belsher B, Hutson L, Greenberg L, Sullivan C, Hull A, Poole J, Schatz P, Pardini J, Lovell M, Strauser E, Parish R, Carr W, Paggi M, Anderson-Barnes V, Kelly M, Hutson L, Loughlin J, Sullivan C, Kelley E, Poole J, Hutson L, Loughlin J, Sullivan C, Belsher B, Hull A, Greenberg L, Poole J, Carr W, Parish R, Paggi M, Anderson-Barnes V, Ahlers S, Roebuck Spencer T, O'Neill D, Carter J, Bleiberg J, Lange R, Brubacher J, Iverson G, Madler B, Heran M, MacKay A, Andolfatto G, Krol A, Mrazik M, Lebby P, Johnson W, Sweatt J, Turitz M, Greenawald K, Lesser S, Ormonde A, Lavach J, Hart J, Demakis G, Rimland C, Lengenfelder J, Sumowski J, Smith A, Chiaravalloti N, DeLuca J, Pierson E, Koehn E, Lajiness-O'Neill R, Hyer L, Yeager C, Manatan K, Sherman S, Atkinson M, Massey-Connolly S, Gugnani M, Stack R, Carson A, Mirza N, Johnson E, Lovell M, Perna R, Jackson A, Roy S, Zebeigly A, Larochette A, Bowie C, Harrison A, Nippoldt-Baca L, Bleil J, Arffa S, Thompson J, Noggle C, Mark B, Maulucci A, Umaki T, Denney R, Greenberg L, Hull A, Belsher B, Lee H, Sullivan C, Poole J, Abrigo E, Hurewitz F, Kounios J, Noggle C, Barisa M, Thompson J, Maulucci A, Greve K, Aguerrevere L, Bianchini K, Etherton J, Heinly M, Kontos A, Covassin T, Elbin R, Larson E, Stearne D, Johnson D, Gilliland K, Vincent A, Chafetz M, Herkov M, Morais H, Schwait A, Mangiameli L, Greenhill T. Grand Rounds. Arch Clin Neuropsychol 2009. [DOI: 10.1093/arclin/acp045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Byrne J, Timon D, Armstrong C, Horgan PG, Quill DS. A comparison of analgesic requirements and pulmonary function in ‘open’ versus laparoscopic cholecystectomy. ACTA ACUST UNITED AC 2009. [DOI: 10.3109/13645709409152985] [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: 11/13/2022]
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Affiliation(s)
- H Shaaban
- Department of Surgery, North Bristol NHS Trust, Bristol, UK.
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Palmer S, Wallace D, Bonner M, Raggl R, Chapieski L, Janzen L, Knight S, Boyle R, Armstrong C, Gajjar A. A longitudinal study of processing speed among children treated for medulloblastoma (MB), supratentorial primitive neuroectodermal tumor (SPNET), or atypical teratoid rhabdoid tumor (ATRT). J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.10028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10028 Background: Indicating a strong relationship to intelligence, processing speed parallels with the rate of knowledge acquisition. To further our understanding of the etiology of deficits in intellectual ability that continues to plague this group of children, the current study prospectively examined longitudinal changes in an underlying cognitive ability, processing speed. Methods: The study included 174 patients (median age at diagnosis = 9.0) enrolled on a multi-site protocol (SJMB03) for MB, SPNET or ATRT. Patients were treated with post-surgical risk-adapted craniospinal irradiation (CSI) followed by 4 cycles of high-dose chemotherapy (cyclophosphamide, cisplatin, vincristine) with stem cell support. High risk (HR, n = 55) patients received 36 - 39.6 Gy CSI and 3D conformal boost to the primary site to 55.8 –59.4 Gy. Average-risk (AR, n=119) patients received 23.4 Gy CSI, 3D conformal boost to the primary site to 55.8 Gy. Those who had posterior fossa syndrome were excluded (n = 26) resulting in 148 patients who completed 459 neuropsychological evaluations using the Woodcock Johnson Tests of Cognitive Abilities-III over a period of 0.03 –4.94 years postdiagnosis. Results: Multivariate modeling revealed a statistically significant decline in processing speed for those < 7 years of age at time of diagnosis (-3.83 points per year, p = 0.003). Those who were > 7 years at diagnosis did not experience a significant change (.86, NS). HR patients experienced greater declines (-.82) than those who were AR (-0.29), but neither slope was statistically significant. Interaction models revealed declines for those in the <7/AR group (-4.17, p = 0.003), and <7/HR group (-3.38, NS). Those >7/AR and >7/HR did not experience significant change (1.06 and 0.32, respectively). Conclusions: Young age at diagnosis is a prominent risk factor for processing speed impairment among survivors of pediatric embryonal tumors. Processing speed may also be among the first deficits to appear following treatment. This study represents the largest comparison of processing speed ability among patients treated for pediatric embryonal tumors with conventional or reduced dose CSI and adjuvant chemotherapy. No significant financial relationships to disclose.
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Affiliation(s)
- S. Palmer
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - D. Wallace
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - M. Bonner
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - R. Raggl
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - L. Chapieski
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - L. Janzen
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - S. Knight
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - R. Boyle
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - C. Armstrong
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
| | - A. Gajjar
- St. Jude Children's Research Hospital, Memphis, TN; Duke University Medical Center, Durham, NC; Royal Children's Hospital, Brisbane, Australia; Texas Children's Hospital, Houston, TX; Hospital for Sick Children, Toronto, ON, Canada; Royal Children's Hospital of Melbourne, Melbourne, Australia; Sydney Children's Hospital, Sydney, Australia; Children's Hospital of Philadelphia, Philadelphia, PA
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Abstract
OBJECTIVE To study the growth and bone mineralization of children born prematurely. STUDY DESIGN A cohort of healthy children who were born prematurely with birth weight less than 1.5 kg were compared by weight and height to a national reference. Bone mineral status of preterm infants was compared with children who were born at term gestation. The average follow-up was 7 years. A sample of children who were born prematurely was recalled from an infant nutrition study. Children born at term gestation who had similar body weight for age were recruited from the community. Bone mineral evaluation was conducted in a group of 20 children born prematurely with birth weight less than 1.5 kg and in 15 children born at term gestation. Body weight for age was similar between the groups. All children were born of appropriate size for gestational age at birth. All children had their body weight and height measured. Comparisons for growth assessment status were made with the NHANES III database and published standards. Dietary intakes and food frequency were analyzed. The bone mineral status was measured at two sites, lumbar spine and distal third radius bone. RESULTS The average age was 7 years, with a range of 5 to 9 years. Compared with the reference population, children who were born prematurely on the average had lower weights, heights and body mass index. Preterm children had a lower lumbar bone mineral content than term children, 12.8+/-3.0 and 14.7+/-2.2 g cm(-1) (P<0.05). The lumbar bone mineral density was lower in the preterm group than in the term group, 0.525+/-0.062 and 0.574+/-0.073 g cm(-2), respectively (P<0.04). Three of the preterm children had a history of fracture whereas none of the term children reported any fractures. CONCLUSION Children who were born prematurely with birth weights less than 1.5 kg tend to be significantly smaller for age and have lower lumbar spinal bone mineral content and density compared with children born at term gestation.
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Affiliation(s)
- G M Chan
- Division of Foods and Nutrition, Department of Pediatrics, University of Utah Health Science Center, Salt Lake City, UT 84158, USA.
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Shipton H, Armstrong C, West M, Dawson J. The impact of leadership and quality climate on hospital performance. Int J Qual Health Care 2008; 20:439-45. [DOI: 10.1093/intqhc/mzn037] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Boyajian-O’Neill L, Gronewold L, Puckett C, Armstrong C, Sanne S. 16: Medical Conditions and Disaster Preparedness: Experiences of a Medical Organization in New Orleans. Ann Emerg Med 2008. [DOI: 10.1016/j.annemergmed.2008.01.284] [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: 10/22/2022]
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Affiliation(s)
- S Elshibly
- Department of Microbiology, Craigavon Area Hospital, Craigavon, Co. Armagh
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Armstrong C, Power T. Re: Malomo OO, Kuti O, Orji EO, Ogunniyi SO, Sule SS. A randomised controlled study of non-closure of peritoneum at caesarean section in a Nigerian population. Journal of Obstetrics and Gynaecology 2006;26:429-432. J OBSTET GYNAECOL 2007; 27:232. [PMID: 17454497 DOI: 10.1080/01443610601159550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Affiliation(s)
- C Armstrong
- National Institutes of Health, Bethesda, Maryland
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Abstract
OBJECTIVES To determine the one year period prevalence of falls by age and sex in patients with rheumatoid arthritis and the influence of concurrent medical treatment and disability on the occurrence of falls in this group. METHODS A consecutive series of rheumatoid patients aged 35 years and over, attending hospital outpatient clinics at Hope hospital, Salford, were asked to complete an interview assisted questionnaire which asked about the occurrence and number of falls in the previous 12 months. SUBJECTS who took part were asked about current treatment with antihypertensive agents, diuretics, sedatives or hypnotics, antidepressants, and a history of previous hip/knee surgery. They also completed the health assessment questionnaire (HAQ). Logistic regression was used to determine the association between these variables and falls in the previous 12 months. RESULTS 253 men and women, mean age 62 years, were studied, and 84 (33%) reported falling in the previous year (36% of women and 26% of men). Of these, 52% had fallen on more than one occasion. There was no important increase in the frequency of falls with age. After adjusting for age and sex, those who had fallen in the previous year were more likely to report taking antidepressant treatment (odds ratio (OR) = 2.09) and to have impairment in both walking (OR = 1.37) and rising (OR = 1.41). The HAQ score was higher in those who reported a fall than those who did not, though the difference was not statistically significant. CONCLUSIONS In this hospital based survey, one in three patients with rheumatoid arthritis reported falling in the previous 12 months. Falls were associated with self reported impairment in lower limb function.
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Affiliation(s)
- C Armstrong
- ARC Epidemiology Unit, The University of Manchester, Oxford Road, Manchester M13 9PT, UK
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Armstrong C, Burak KW, Beck PL. Benzocaine-Induced Methemoglobinemia: A Condition of which all Endoscopists Should Be Aware. Canadian Journal of Gastroenterology 2004; 18:625-9. [PMID: 15497003 DOI: 10.1155/2004/620203] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Methemoglobinemia is a rare complication that can occur with the use of benzocaine-containing compounds. Two cases of methemoglobinemia are reported, and the pathophysiology and treatment of methemoglobinemia are reviewed. Both patients received topical 20% benzocaine spray before endoscopy. Immediately following the procedure, there was a reduction in O2saturation assessed by pulse oximetry that was refractory to O2therapy. Dramatic peripheral and central cyanosis developed. O2saturation measured by pulse oximetry ranged from 83% to 87% on O2by nasal prongs and 100% O2by a nonrebreathing mask. Both patients were mildly confused and one patient complained of a significant headache. The diagnosis of methemoglobinemia was considered and arterial blood gas sampling was performed. In both patients, the arterial blood had a chocolate brown colour. A methemoglobin level of 48% and 18% was noted in patient 1 and patient 2, respectively. Both patients were treated with methylene blue, resulting in a significant improvement with gradual normalization of their O2saturation within 10 min to 30 min. The use of benzocaine spray may not markedly alter the patient's perception of endoscopy and thus, the routine use of these agents should be questioned. If such agents are used, the physician must be aware of this association to prevent a delay in the diagnosis and management of this rare, but potentially lethal, condition.
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Affiliation(s)
- C Armstrong
- Division of Gastroenterology, University of Calgary, Calgary, Alberta, Canada
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Zhang W, Subbarao S, Addae P, Shen A, Armstrong C, Peschke V, Gilbertson L. Cre/lox-mediated marker gene excision in transgenic maize (Zea mays L.) plants. Theor Appl Genet 2003; 107:1157-1168. [PMID: 14513214 DOI: 10.1007/s00122-003-1368-z] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2002] [Accepted: 04/17/2003] [Indexed: 05/24/2023]
Abstract
After the initial transformation and tissue culture process is complete, selectable marker genes, which are used in virtually all transformation approaches, are not required for the expression of the gene of interest in the transgenic plants. There are several advantages to removing the selectable marker gene after it is no longer needed, such as enabling the reuse of selectable markers and simplifying transgene arrays. We have tested the Cre/ lox system from bacteriophage P1 for its ability to precisely excise stably integrated marker genes from chromosomes in transgenic maize plants. Two strategies, crossing and autoexcision, have been tested and demonstrated. In the crossing strategy, plants expressing the Cre recombinase are crossed with plants bearing a transgene construct in which the selectable marker gene is flanked by directly repeated lox sites. Unlike previous reports in which incomplete somatic and germline excision were common, in our experiments complete somatic and germline marker gene excision occurred in the F(1) plants from most crosses with multiple independent Cre and lox lines. In the autoexcision strategy, the cre gene, under the control of a heat shock-inducible promoter, is excised along with the nptII marker gene. Our results show that a transient heat shock treatment of primary transgenic callus is sufficient for inducing cre and excising the cre and nptII genes. Genetic segregation and molecular analysis confirmed that marker gene removal is precise, complete and stable. The autoexcision strategy provides a way of removing the selectable marker gene from callus or other tissues such as embryos and kernels.
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Affiliation(s)
- W Zhang
- Monsanto Company, 700 Chesterfield Parkway North, St. Louis, MO 63017-1732, USA
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Tryphonas H, Bondy G, Hodgen M, Coady L, Parenteau M, Armstrong C, Hayward S, Liston V. Effects of cis-nonachlor, trans-nonachlor and chlordane on the immune system of Sprague-Dawley rats following a 28-day oral (gavage) treatment. Food Chem Toxicol 2003; 41:107-18. [PMID: 12453735 DOI: 10.1016/s0278-6915(02)00184-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The immunotoxicity of cis- and trans-nonachlor and chlordane were investigated in adult male and female Sprague-Dawley rats following a 28-day oral (gavage) treatment. Rats were randomly assigned to six experimental groups: cis-nonachlor, females; trans-nonachlor, females; technical chlordane females; cis-nonachlor, males; trans-nonachlor, males; technical chlordane, males. The immunologic endpoints included: quantification of the total serum immunoglobulin (Ig) levels and subclasses and flow cytometric analysis of peripheral blood leukocytes and T-lymphocyte subsets, evaluation of the lymphoproliferative activity of splenocytes in response to concanavalin A (Con A) and Salmonella typhimurium (STM) mitogens, and natural killer (NK) cell activity of splenocytes. Satellite experiments to examine the delayed-type hypersensitivity (DTH) response to oxazolone, and resistance to Listeria monocytogenes were set up for female rats treated with cis- or trans-nonachlor. Statistically significant (P<0.05) effects included: increased serum immunoglobulin M (IgM) levels in the chlordane-treated females at the 25 mg/kg dose (pairwise comparison); increased serum IgG(1) and IgG(2c) in the cis-nonachlor-treated males at the 2.5 and 25 mg/kg doses and increased serum IgG(2a) levels at all doses; increased serum IgG(2b) at the 25 mg/kg dose and decreased (dose-related) serum IgM levels in the cis-nonachlor-treated male rats; increased (linear trend) IgG(1) and IgG(2a) in the cis-nonachlor-treated females with effects on IgG(2a) significant at the 25 mg/kg dose compared with control; increased serum IgG(2a) in the trans-nonachlor-treated male and female rats at the 2.5 mg/kg dose; increased absolute numbers (linear trend) of peripheral white blood cells, B lymphocytes, natural killer (NK) cells, T-suppressor/cytotoxic lymphocytes, and the double positive (T-helper/inducer, T-suppressor/cytotoxic) cells in the trans-nonachlor-treated females; increased (non-linear trend) lymphoproliferative activity in the Con A-stimulated splenocytes and decreased (linear trend) activity in the S. typhimurium mitogen-stimulated splenocytes of the cis-nonachlor-treated females; reduced resistance to L. monocytogenes in the cis-nonachlor (day 3, P=0.034)- and trans-nonachlor (day 2, P=0.0001)-treated females, and reduced (linear trend) NK cell activity in the cis-nonachlor-treated males. The present data indicated that the chlordane compounds tested in this study had significant effects on a number of immunologic endpoints. In comparison to technical chlordane, cis- and trans-nonachlors were more immunotoxic. Therefore, an evaluation of the risk these chlorinated compounds may pose to human health should consider the potential effects different chlordane compounds may have on the immune system.
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Affiliation(s)
- H Tryphonas
- Toxicology Research Division, Food Directorate, Health Products and Foods Branch, Health Canada, Tunneys' Pasture, Ross Ave., Ottawa, Ontario, Canada K1A 0L2.
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Abstract
The adult mouse cerebellar vermis consists of four transverse zones, each of which is further subdivided into parasagittal stripes. In the adult weaver (wv/wv) mouse, the zebrin II expression pattern in the cerebellar vermis is abnormal, consistent with the absence of a central zone (approximately lobules VI/VII). Because the small, heat shock protein HSP25 is a constitutive marker of parasagittal bands of Purkinje cells in the caudal central zone and the nodular zone (approximately lobules IX/X), we used HSP25 immunocytochemistry to show that the patterning abnormalities in wv/wv reflect selective Purkinje cell ectopia rather than the absence of the central zone. A specific HSP25-immunopositive Purkinje cell ectopia within the central zone was identified. Symmetrical clusters of HSP25-immunopositive Purkinje cells, which presumably would have formed the parasagittal stripes in the wild type, are present ectopically on either side of the midline in wv/wv. In contrast, in the nodular zone, HSP25-immunopositive Purkinje cells form a near-monolayer and are organized into parasagittal stripes. We therefore conclude that specific Purkinje cell clusters in the wv/wv cerebellum fail to disperse and that this ectopia contributes to the topographical abnormalities.
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Affiliation(s)
- C Armstrong
- Department of Cell Biology and Anatomy and Genes and Development Research Group, Faculty of Medicine, The University of Calgary, Calgary, Alberta T2N 4N1, Canada
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Gazda LS, Milligan ED, Hansen MK, Twining CM, Poulos NM, Chacur M, O'Connor KA, Armstrong C, Maier SF, Watkins LR, Myers RR. Sciatic inflammatory neuritis (SIN): behavioral allodynia is paralleled by peri-sciatic proinflammatory cytokine and superoxide production. J Peripher Nerv Syst 2001; 6:111-29. [PMID: 11817330 DOI: 10.1046/j.1529-8027.2001.006001111.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We have recently developed a model of sciatic inflammatory neuritis (SIN) to assess how immune activation near peripheral nerves influences somatosensory processing. Administration of zymosan (yeast cell walls) around a single sciatic nerve produces dose-dependent low-threshold mechanical allodynia without thermal hyperalgesia. Low (4 microg) doses produce both territorial and extraterritorial allodynia restricted to the injected hindleg. In contrast, higher (40 microg) doses produce territorial and extraterritorial allodynias of both hindlegs, an effect not accounted for by systemic spread of the zymosan. The aim of these experiments was to determine whether these behavioral allodynias were correlated with immunological and/or anatomical changes in or around the sciatic nerve. These experiments reveal that zymosan-induced bilateral allodynia was associated with the following: (a) increased release of both interleukin-1beta and tumor necrosis factor-alpha from peri-sciatic immune cells; (b) increased release of reactive oxygen species from perisciatic immune cells; (c) no change in circulating levels of proinflammatory cytokine; (d) no apparent zymosan-induced influx of immune cells into the sciatic nerve from the endoneurial blood vessels; (e) mild edema of the sciatic, which was predominantly restricted to superficial regions closest to the peri-sciatic immune cells; and (f) no anatomic evidence of changes in either the ipsilateral saphenous nerve or contralateral sciatic nerve that could account for the appearance of extraterritorial or contralateral ("mirror") allodynia, respectively. No reliable differences were found when the low-dose zymosan was compared with vehicle controls. Taken together, these data suggest that substances released by peri-sciatic immune cells may induce changes in the sciatic nerve, leading to the appearance of bilateral allodynia.
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Affiliation(s)
- L S Gazda
- Department of Psychology and the Center for Neurosciences, University of Colorado at Boulder, 80309-0345, USA
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Abstract
Potassium ions are vital for maintaining functionality of K channels. In their absence, many K channel types enter a long-lasting defunct condition characterized by absence of conductance and drastic changes in gating current. We show that channels pass through a dilated condition with altered selectivity as they are becoming defunct. To characterize these abnormalities we examined gating and ionic currents generated by Shaker IR and by three nonconducting mutants, W434F, D447N, and Y445A, in 0 K+. On entering the dilated condition, Shaker IR becomes permeable to Na+ and tetramethylammonium-positive (TMA+), signaling deformation of the selectivity filter. When dilated, nearly normal closing is possible at -140 mV. At -80 mV, however, closing is very slow and channels stray from the dilated into the defunct condition. Restoration from defunct to dilated condition requires tens of seconds at 0 mV and can occur in the absence of K+. W434F and D447N are similar to Shaker IR, showing Na+ and TMA+ permeability when dilated. The defunct gating currents are similar in Shaker IR and these two mutants and are reminiscent of the early transitions of normal gating. Y445A does not become defunct and shows Na+ but not TMA+ permeability on K+ removal.
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Affiliation(s)
- A Loboda
- Department of Physiology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
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