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Vasilevski V, Ryan D, Crowe G, Askern A, McCormick M, Segond S, Sweet L. Evaluating the implementation of the Birmingham Symptom-specific Obstetric Triage System (BSOTS) in Australia. Women Birth 2022; 36:290-298. [PMID: 36127283 DOI: 10.1016/j.wombi.2022.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Obstetric triage is usually undertaken by a midwife and involves conducting a physical assessment to identify a woman's presenting problem. The Birmingham Symptom-specific Obstetric Triage System (BSOTS) was developed in the United Kingdom (UK) to overcome challenges associated with triaging women by standardising the maternity triage process. The Australian study site is the first hospital outside the UK to implement this approach. AIM To evaluate the implementation of the BSOTS in an Australian tertiary maternity service. METHODS A multi-method approach including pre-implementation BSOTS education evaluations (n = 26), post-implementation clinical data audit (n = 660), and staff focus groups (n = 9) was undertaken. Participants included midwives who worked in the Maternity Assessment Centre. Data of women who had attended the service during BSOTS implementation was analysed in the audit component. FINDINGS Staff valued the BSOTS standardised approach to maternity triage, particularly for midwives new to the role. The retrospective audit showed that time to triage and time to care outcomes for women improved from pre-implementation audits and were mostly adhering to auditable standards. Lack of knowledge amongst staff (especially medical staff) regarding the BSOTS was considered a barrier to the effective flow of care of women through the centre. DISCUSSION The BSOTS is a useful approach for prioritising women's care. Ensuring that all staff are aware of the system and its benefits is likely to enhance implementation and improve triage outcomes. CONCLUSION The BSOTS is an innovative midwife led practice change that is applicable to the Australian context, and benefits women, midwives, and the maternity service.
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Affiliation(s)
- Vidanka Vasilevski
- School of Nursing and Midwifery, Deakin University, Victoria, Australia; Centre for Quality and Patient Safety Research, Western Health Partnership, Victoria, Australia.
| | | | | | | | | | | | - Linda Sweet
- School of Nursing and Midwifery, Deakin University, Victoria, Australia; Centre for Quality and Patient Safety Research, Western Health Partnership, Victoria, Australia
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Eddens T, Mack M, McCormick M, Chong H, Kalpatthi R. A042 TRENDS IN PEDIATRIC PRIMARY IMMUNODEFICIENCY: INCIDENCE, UTILIZATION, HEMATOPOIETIC STEM CELL TRANSPLANTATION, AND MORTALITY. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.030] [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]
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McCormick M, Pollock W, Kapp S, Gerdtz M. Organizational strategies to optimize women's safety during labor and birth: A scoping review. Birth 2021; 48:285-300. [PMID: 34219273 DOI: 10.1111/birt.12570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 06/18/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Safety is a priority for organizations that provide maternity care, however, preventable harm and errors in maternity care remain. Maternity care is considered a high risk and high litigation area of health care. To mitigate risk and litigation, organizations have implemented strategies to optimize women's safety. Our objectives were to identify the strategies implemented by organizations to optimize women's safety during labor and birth, and to consider how the concept of safety is operationalized to measure and evaluate outcomes of these strategies. METHOD This scoping review was conducted using the Joanna Briggs Institute Scoping Review Methodology. Published peer-reviewed literature indexed in CINAHL, Medline, and Embase, databases from 2010 to 2020, were reviewed for inclusion. Fifty studies were included. Data were extracted and thematically analyzed. RESULTS Three categories of organizational strategies were identified to optimize women's safety during labor and birth: clinical governance, models of care, and staff education. Clinical governance programs (n = 30 studies), specifically implementing checklists and audits, models of care, such as midwifery led-care (n = 11 studies), and staff training programs (n = 9 studies), were predominately for the management of obstetric emergencies. Outcome measures included morbidity and mortality for woman and newborns. Three studies discussed women's perceptions of safety during labor and birth as an outcome measure. CONCLUSIONS Organizations utilize a range of strategies to optimize women's safety during labor and birth. The main outcome measure used to evaluate strategies was focused on clinical outcomes for the mother and newborn.
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Affiliation(s)
- Margaret McCormick
- Department of Nursing, Faculty of Medicine, Dentistry and Health Sciences, Melbourne School of Health Sciences, The University of Melbourne, Melbourne, Vic., Australia.,Western Health, St Albans, Vic., Australia
| | - Wendy Pollock
- Department of Nursing, Faculty of Medicine, Dentistry and Health Sciences, Melbourne School of Health Sciences, The University of Melbourne, Melbourne, Vic., Australia.,Department of Nursing, Faculty of Health and Life Sciences, Midwifery and Health, Northumbria University, Newcastle-upon-Tyne, UK
| | - Suzanne Kapp
- Department of Nursing, Faculty of Medicine, Dentistry and Health Sciences, Melbourne School of Health Sciences, The University of Melbourne, Melbourne, Vic., Australia
| | - Marie Gerdtz
- Department of Nursing, Faculty of Medicine, Dentistry and Health Sciences, Melbourne School of Health Sciences, The University of Melbourne, Melbourne, Vic., Australia
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Findlay S, Okoro U, Lee S, Harland K, Evers M, Dang E, McCormick M, Buresh C. 63 The Impact of the COVID-19 Pandemic on Social Determinants of Health on Patients in a Rural Academic Emergency Department. Ann Emerg Med 2021. [PMCID: PMC8335536 DOI: 10.1016/j.annemergmed.2021.07.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lloyd TD, Neal‐Smith G, Fennelly J, Claireaux H, Bretherton C, Carr AJ, Murphy M, Kendrick BJ, Palmer AJR, Wong J, Sharma P, Osei‐Bonsu PK, Ashcroft G, Baigent T, Shirland E, Espey R, Stokes M, Liew I, Dhawal A, Watchorn D, Lum J, Qureshi M, Khaled AS, Kauser S, Hodhody G, Rogers S, Haywood‐Alexander B, Sheikh G, Mahapatra P, Twaij H, Chicco M, Arnaout F, Atherton T, Mutimer J, Sinha P, Oliver E, Stedman T, Gadd R, Kutuzov V, Sattar M, Robiati L, Plastow R, Howe T, Hassan A, Lau B, Collins J, Doshi A, Tan G, Baskaran D, Hari Sunil Kumar K, Agarwal R, Horner M, Gwyn R, Masud S, Beaumont O, Pilarski A, Lebe M, Dawson‐Bowling S, Nolan D, Tsitskaris K, Beamish RE, Jordan C, Alsop S, Hibbert E, Deshpande G, Gould A, Briant‐Evans T, Kilbane L, Crowther I, Ingoe H, Naisbitt A, Gourbault L, Muscat J, Goh EL, Gill J, Elbashir M, Modi N, Archer J, Ismael S, Petrie M, O'Brien H, McCormick M, Koh NP, Lloyd T, King A, Ikram A, Peake J, Yoong A, Rye DS, Newman M, Naraen A, Myatt D, Kapur R, Sgardelis P, Kohli S, Culverhouse‐Mathews M, Haynes S, Boden H, Purmah A, Shenoy R, Raja S, Koh NP, Donovan R, Yeomans D, Ritchie D, Larkin R, Aladwan R, Hughes K, Unsworth R, Cooke R, Samra I, Barrow J, Michael K, Byrne F, Anwar R, Karatzia L, Drysdale H, Wilson H, Jones R, Dass D, Liaw F, Aujla R, Kheiran A, Bell K, Ramavath AL, Telfer R, Nachev K, Lawrence H, Garg V, Shenoy P, Lacey A, Byrom I, Simons M, Manning C, Cheyne N, Williams J. Peri‐operative administration of tranexamic acid in lower limb arthroplasty: a multicentre, prospective cohort study. Anaesthesia 2020; 75:1050-1058. [DOI: 10.1111/anae.15056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2020] [Indexed: 12/20/2022]
Affiliation(s)
- T. D. Lloyd
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - G. Neal‐Smith
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - J. Fennelly
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - H. Claireaux
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - C. Bretherton
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
- Oxford Surgical Collaborative for Audit and Research Oxford UK
| | - A. J. Carr
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
| | - M. Murphy
- University of Oxford UK
- NHS Blood and Transplant Oxford UK
| | - B. J. Kendrick
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
| | - A. J. R. Palmer
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK
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Samuels E, Wentz A, McCormick M, McDonald J, Koziol J, Marshall B, Alexander-Scott N. 161 The Impact of Statewide Emergency Department Opioid Overdose Treatment Standards on Naloxone Distribution, Behavioral Counseling, and Referral to Treatment. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Elhalawani H, He R, Yamazaki T, Gunderson A, Phillips M, McCarty K, McCormick M, Cochran D, Mohamed A, Fuller C, Gough M, Crittenden M, Young K. Multiparametric MRI Measures Correlate with Treatment Response and CD8 T Cell Infiltrate in Phase II Study of Tgfβri Inhibitor with Chemoradiation in Locally Advanced Rectal Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.496] [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: 11/25/2022]
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Abstract
INTRODUCTION Mortality rates following hip arthroplasty range between 10% and 40% after 12 months. A higher rate is attributed to postoperative complications, of which surgical site infection is one of the most significant. In an effort to reduce surgical site infection following arthroplasty, antibiotics can be added to the cement used. The primary aim of this study was to determine whether dual antibiotic impregnated cement can reduce the rate of deep surgical site infection in patients following cemented arthroplasty for fractured neck of femur compared with single antibiotic impregnated cement. The secondary aim was to compare the rate of superficial surgical site infection in single compared with dual antibiotic cement. MATERIALS AND METHODS A total of 206 patients were included. Group 1 included 108 retrospective patients who underwent arthroplasty for neck of femur fracture over a 12-month period using single antibiotic impregnated cement. Group 2 included 98 prospective patients who underwent arthroplasty for neck of femur fracture over a 12-month period using dual antibiotic impregnated cement. The rates of deep and superficial surgical site infection were investigated. RESULTS Group 1 had a deep surgical site infection rate of 2.9% (n = 3), Group 2 had a deep surgical site infection rate of 0% (n = 0). Group 1 had a superficial surgical site infection rate of 3.7% (n = 4), Group 2 had a superficial surgical site infection rate of 5.1% (n = 5). CONCLUSION Dual antibiotic cement reduced the rate of deep surgical site infection compared with conventional single antibiotic cement in arthroplasty for fractured neck of femur. Only a marginal difference in superficial surgical site infection was observed.
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Affiliation(s)
- P Savage
- Department of Trauma and Orthopaedic Surgery, South Tyneside District Hospital, South Tyneside, UK
| | - M McCormick
- Department of Trauma and Orthopaedic Surgery, South Tyneside District Hospital, South Tyneside, UK
| | - O Al-Dadah
- Department of Trauma and Orthopaedic Surgery, South Tyneside District Hospital, South Tyneside, UK.,Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
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Radini A, Tromp M, Beach A, Tong E, Speller C, McCormick M, Dudgeon JV, Collins MJ, Rühli F, Kröger R, Warinner C. Medieval women's early involvement in manuscript production suggested by lapis lazuli identification in dental calculus. Sci Adv 2019; 5:eaau7126. [PMID: 30662947 PMCID: PMC6326749 DOI: 10.1126/sciadv.aau7126] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 11/30/2018] [Indexed: 05/07/2023]
Abstract
During the European Middle Ages, the opening of long-distance Asian trade routes introduced exotic goods, including ultramarine, a brilliant blue pigment produced from lapis lazuli stone mined only in Afghanistan. Rare and as expensive as gold, this pigment transformed the European color palette, but little is known about its early trade or use. Here, we report the discovery of lapis lazuli pigment preserved in the dental calculus of a religious woman in Germany radiocarbon-dated to the 11th or early 12th century. The early use of this pigment by a religious woman challenges widespread assumptions about its limited availability in medieval Europe and the gendered production of illuminated texts.
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Affiliation(s)
- A. Radini
- Department of Archaeology, University of York, York YO1 7EP, UK
- Department of Oral and Maxillo-facial Sciences, Sapienza University of Rome, Rome 00185, Italy
| | - M. Tromp
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena 07745, Germany
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - A. Beach
- Department of History, The Ohio State University, Columbus, OH 43210, USA
| | - E. Tong
- Department of Physics, University of York, York YO10 5DD, UK
| | - C. Speller
- Department of Archaeology, University of York, York YO1 7EP, UK
- Department of Anthropology, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - M. McCormick
- Department of History, Harvard University, Cambridge, MA 02138, USA
- Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Cambridge, MA 02138, USA
| | - J. V. Dudgeon
- Department of Anthropology, Idaho State University, Idaho State University, Pocatello, ID 83209, USA
- Center for Archaeology, Materials and Applied Spectroscopy, Idaho State University, Pocatello, ID 83209, USA
| | - M. J. Collins
- Department of Archaeology, University of York, York YO1 7EP, UK
- Natural History Museum of Denmark, Copenhagen 1350, Denmark
| | - F. Rühli
- Institute of Evolutionary Medicine, University of Zürich, Zürich 8057, Switzerland
| | - R. Kröger
- Department of Physics, University of York, York YO10 5DD, UK
| | - C. Warinner
- Institute of Evolutionary Medicine, University of Zürich, Zürich 8057, Switzerland
- Laboratories of Molecular Anthropology and Microbiome Research and the Department of Anthropology, University of Oklahoma, Norman, OK 73019, USA
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena 07745, Germany
- Corresponding author.
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Griffin R, Psarelli EE, Cox TF, Khedr M, Milan AM, Davison AS, Hughes AT, Usher JL, Taylor S, Loftus N, Daroszewska A, West E, Jones A, Briggs M, Fisher M, McCormick M, Judd S, Vinjamuri S, Sireau N, Dillon JP, Devine JM, Hughes G, Harrold J, Barton GJ, Jarvis JC, Gallagher JA, Ranganath LR. Data on items of AKUSSI in Alkaptonuria collected over three years from the United Kingdom National Alkaptonuria Centre and the impact of nitisinone. Data Brief 2018; 20:1620-1628. [PMID: 30263914 PMCID: PMC6157456 DOI: 10.1016/j.dib.2018.09.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/02/2018] [Accepted: 09/07/2018] [Indexed: 11/16/2022] Open
Abstract
Alkaptonuria is a rare genetic disorder characterized by a high level of circulating (and urine) homogentisic acid (HGA), which contributes to ochronosis when it is deposited in connective tissue as a pigmented polymer. In an observational study carried out by National AKU Centre (NAC) in Liverpool, a total of thirty-nine AKU patients attended yearly visits in varying numbers. At each visit a mixture of clinical, joint and spinal assessments were carried out and the results calculated to yield an AKUSSI (Alkaptonuria Severity Score Index), see "Nitisinone arrests ochronosis and decreases rate of progression of Alkaptonuria: evaluation of the effect of nitisinone in the United Kingdom National Alkaptonuria Centre" (Ranganath at el., 2018). The aim of this data article is to produce visual representation of the change in the components of AKUSSI over 3 years, through radar charts. The metabolic effect of nitisinone is shown through box plots.
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Affiliation(s)
- R Griffin
- Liverpool Cancer Trials Unit, University of Liverpool, Block C, Waterhouse Building, Liverpool L69 3GL, UK
| | - E E Psarelli
- Liverpool Cancer Trials Unit, University of Liverpool, Block C, Waterhouse Building, Liverpool L69 3GL, UK
| | - T F Cox
- Liverpool Cancer Trials Unit, University of Liverpool, Block C, Waterhouse Building, Liverpool L69 3GL, UK
| | - M Khedr
- Department of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - A M Milan
- AKU Society, 66 Devonshire Road, Cambridge, UK
| | - A S Davison
- Department of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - A T Hughes
- Liverpool Cancer Trials Unit, University of Liverpool, Block C, Waterhouse Building, Liverpool L69 3GL, UK
| | - J L Usher
- Department of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - S Taylor
- Department of Physiotherapy, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - N Loftus
- Department of Physiotherapy, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - A Daroszewska
- Department of Rheumatology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK.,Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
| | - E West
- Department of Dermatology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - A Jones
- Department of Anaesthesia, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - M Briggs
- Department of Ophthalmology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - M Fisher
- Department of Cardiology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - M McCormick
- Department of ENT, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - S Judd
- Department of Dietetics, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - S Vinjamuri
- Department of Nuclear Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - N Sireau
- AKU Society, 66 Devonshire Road, Cambridge, UK
| | - J P Dillon
- Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
| | - J M Devine
- Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
| | - G Hughes
- Department of Psychological Sciences, University of Liverpool, L69 7ZX, UK
| | - J Harrold
- Department of Psychological Sciences, University of Liverpool, L69 7ZX, UK
| | - G J Barton
- School of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
| | - J C Jarvis
- School of Sport and Exercise Science, Liverpool John Moores University, Liverpool, UK
| | - J A Gallagher
- Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
| | - L R Ranganath
- Department of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
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Ranganath LR, Khedr M, Milan AM, Davison AS, Hughes AT, Usher JL, Taylor S, Loftus N, Daroszewska A, West E, Jones A, Briggs M, Fisher M, McCormick M, Judd S, Vinjamuri S, Griffin R, Psarelli EE, Cox TF, Sireau N, Dillon JP, Devine JM, Hughes G, Harrold J, Barton GJ, Jarvis JC, Gallagher JA. Nitisinone arrests ochronosis and decreases rate of progression of Alkaptonuria: Evaluation of the effect of nitisinone in the United Kingdom National Alkaptonuria Centre. Mol Genet Metab 2018; 125:127-134. [PMID: 30055994 DOI: 10.1016/j.ymgme.2018.07.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/19/2018] [Accepted: 07/19/2018] [Indexed: 10/28/2022]
Abstract
QUESTION Does Nitisinone prevent the clinical progression of the Alkaptonuria? FINDINGS In this observational study on 39 patients, 2 mg of daily nitisinone inhibited ochronosis and significantly slowed the progression of AKU over a three-year period. MEANING Nitisinone is a beneficial therapy in Alkaptonuria. BACKGROUND Nitisinone decreases homogentisic acid (HGA), but has not been shown to modify progression of Alkaptonuria (AKU). METHODS Thirty-nine AKU patients attended the National AKU Centre (NAC) in Liverpool for assessments and treatment. Nitisinone was commenced at V1 or baseline. Thirty nine, 34 and 22 AKU patients completed 1, 2 and 3 years of monitoring respectively (V2, V3 and V4) in the VAR group. Seventeen patients also attended a pre-baseline visit (V0) in the VAR group. Within the 39 patients, a subgroup of the same ten patients attended V0, V1, V2, V3 and V4 visits constituting the SAME Group. Severity of AKU was assessed by calculation of the AKU Severity Score Index (AKUSSI) allowing comparison between the pre-nitisinone and the nitisinone treatment phases. RESULTS The ALL (sum of clinical, joint and spine AKUSSI features) AKUSSI rate of change of scores/patient/month, in the SAME group, was significantly lower at two (0.32 ± 0.19) and three (0.15 ± 0.13) years post-nitisinone when compared to pre-nitisinone (0.65 ± 0.15) (p < .01 for both comparisons). Similarly, the ALL AKUSSI rate of change of scores/patient/month, in the VAR group, was significantly lower at one (0.16 ± 0.08) and three (0.19 ± 0.06) years post-nitisinone when compared to pre-nitisinone (0.59 ± 0.13) (p < .01 for both comparisons). Combined ear and ocular ochronosis rate of change of scores/patient/month was significantly lower at one, two and three year's post-nitisinone in both VAR and SAME groups compared with pre-nitisinone (p < .05). CONCLUSION This is the first indication that a 2 mg dose of nitisinone slows down the clinical progression of AKU. Combined ocular and ear ochronosis progression was arrested by nitisinone.
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Affiliation(s)
- L R Ranganath
- Departments of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool, L7 8XP, UK.
| | - M Khedr
- Departments of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - A M Milan
- Departments of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - A S Davison
- Departments of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - A T Hughes
- Departments of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - J L Usher
- Departments of Clinical Biochemistry and Metabolic Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool, L7 8XP, UK
| | - S Taylor
- Physiotherapy, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - N Loftus
- Physiotherapy, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - A Daroszewska
- Rheumatology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK; Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
| | - E West
- Dermatology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - A Jones
- Anaesthesia, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - M Briggs
- Ophthalmology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - M Fisher
- Cardiology, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - M McCormick
- ENT, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - S Judd
- Dietetics, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - S Vinjamuri
- Nuclear Medicine, Royal Liverpool University Hospital, Prescot Street, Liverpool L7 8XP, UK
| | - R Griffin
- Liverpool Cancer Trials Unit, University of Liverpool, Block C, Waterhouse Building, Liverpool L69 3GL, UK
| | - E E Psarelli
- Liverpool Cancer Trials Unit, University of Liverpool, Block C, Waterhouse Building, Liverpool L69 3GL, UK
| | - T F Cox
- Liverpool Cancer Trials Unit, University of Liverpool, Block C, Waterhouse Building, Liverpool L69 3GL, UK
| | - N Sireau
- AKU Society, 66 Devonshire Road, Cambridge, UK
| | - J P Dillon
- Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
| | - J M Devine
- Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
| | - G Hughes
- Department of Psychological Sciences, University of Liverpool, L69 7ZX, UK
| | - J Harrold
- Department of Psychological Sciences, University of Liverpool, L69 7ZX, UK
| | - G J Barton
- Liverpool John Moores University, Liverpool, UK
| | - J C Jarvis
- Liverpool John Moores University, Liverpool, UK
| | - J A Gallagher
- Department of Musculoskeletal Biology, University of Liverpool, L69 7ZX, UK
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Schneider B, Miller KD, Badve S, O'Neil B, Helft P, Chitambar C, Falkson C, Nanda R, McCormick M, Danso M, Blaya M, Langdon R, Lippman M, Paplomata E, Walling R, Thompson M, Robin E, Aggarwal L, Shalaby I, Canfield V, Adesunloye B, Lee T, Daily K, Ma C, Erban J, Radhakrishnan N, Bruetman D, Graham M, Reddy NA, Lynce FC, Radovich M. Abstract OT3-04-01: BRE12-158: A phase II randomized controlled trial of genomically directed therapy after preoperative chemotherapy in patients with triple negative breast cancer (TNBC). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-ot3-04-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: About 1/3 of patients with TNBC who receive preoperative therapy will experience a pathological complete response (pCR). Patients with residual disease have a markedly inferior overall survival (OS) compared to those who experience pCR. Recently, the CREATE-X trial demonstrated an improvement in disease free survival (DFS) and OS for post-neoadjuvant capecitebine; although the addition of capecitebine to standard therapy has not previously improved outcome across other non-selected adjuvant or neo-adjuvant trials. Prior data have also demonstrated that the residual tumors are genomically diverse and that these genetic changes are reflected at time of relapse.
Trial Design: This trial is a randomized phase II trial to determine whether a genomically guided therapy in the setting of incomplete response to standard neoadjuvant therapy will improve outcomes compared to standard of care. DNA from archived tumor samples collected at the time of surgery will be extracted and sequenced. The sequencing data will be interrogated for known genomic drivers of sensitivity or resistance to existing FDA approved agents. A cancer genomic tumor board (CGTB) will consider the genomic data along with the patient's prior treatment history, toxicities, and comorbidities and select the optimal therapy. Participants with a CGTB recommendation will be randomized to Experimental Arm A (genomically directed monotherapy) or Control Arm B (standard of care). Participants may have no CGTB recommendation either because sequencing did not identify a matched drug or because the drug was contraindicated and will be assigned to Control Arm B.
Eligibility criteria: Patients must have histologically confirmed TNBC with completion of all definitive local therapy and no evidence of metastatic disease. There must be significant residual disease characterized by >2cm primary tumor, or lymph node positivity or RCB classification II or III. An FFPE tumor block with tumor cellularity >20% is required. All patients must have completed preoperative chemotherapy including a taxane or anthracycline or both.
Specific aims: The Primary Aim is to compare 2-year DFS with a genomically directed therapy vs. standard of care. Secondary Aims include 1-year DFS, 5-year OS, collection of archival specimens for correlative studies, and to describe toxicities. Exploratory Aims are to describe the evolution of genomically directed therapies during the course of the study and to evaluate the drug specific effect on efficacy and toxicity.
Statistical methods: In order to detect an improvement in the fraction of patients free from disease at 2-year from 40% in the control Arm B to 63.2% in the genomically directed Experimental Arm A (corresponding to an HR=0.5), 136 participants will have 80% power to detect a difference in DFS using a two-side log-rank test with 0.05 level of significance.
Present accrual/target accrual: 38 accrued of 136 to be randomized.
Citation Format: Schneider B, Miller KD, Badve S, O'Neil B, Helft P, Chitambar C, Falkson C, Nanda R, McCormick M, Danso M, Blaya M, Langdon R, Lippman M, Paplomata E, Walling R, Thompson M, Robin E, Aggarwal L, Shalaby I, Canfield V, Adesunloye B, Lee T, Daily K, Ma C, Erban J, Radhakrishnan N, Bruetman D, Graham M, Reddy NA, Lynce FC, Radovich M. BRE12-158: A phase II randomized controlled trial of genomically directed therapy after preoperative chemotherapy in patients with triple negative breast cancer (TNBC) [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr OT3-04-01.
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Affiliation(s)
- B Schneider
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - KD Miller
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - S Badve
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - B O'Neil
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - P Helft
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - C Chitambar
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - C Falkson
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - R Nanda
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - M McCormick
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - M Danso
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - M Blaya
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - R Langdon
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - M Lippman
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - E Paplomata
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - R Walling
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - M Thompson
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - E Robin
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - L Aggarwal
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - I Shalaby
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - V Canfield
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - B Adesunloye
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - T Lee
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - K Daily
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - C Ma
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - J Erban
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - N Radhakrishnan
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - D Bruetman
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - M Graham
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - NA Reddy
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - FC Lynce
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
| | - M Radovich
- Indiana University Simon Cancer Center; Medical College of Wisconsin; University of Alabama Birmingham; University of Chicago; Meritus Center for Clinical Research; Virginia Oncology Associates; Memorial Cancer Center; Nebraska Methodist Hospital; University of Miami; Winship Cancer Institute of Emory University; Community Regional Cancer Care; Aurora Health Care; Community Healthcare System; Fort Wayne Medical Oncology and Hematology; Joe Arrington Cancer Research and Treatment Center; Mercy Clinic Oklahoma Communities; IU Health Arnett; IU Health Goshen Center for Cancer Care; Pinnacle Health Cancer Center; University of Florida; Washington University at St. Louis; Tufts Medical Center; University of Cincinnati; Erlanger Health System; Community Hospitals of Anderson and Madison Co; Georgetown University
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13
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Abstract
We introduce the concept of "Ultrasound Spectroscopy". The premise of ultrasound spectroscopy is that by acquiring ultrasound RF data at multiple power and frequency settings, a rich set of features can be extracted from that RF data and used to characterize the underlying tissues. This is beneficial for a variety of problems, such as accurate tissue classification, application-specific image generation, and numerous other quantitative tasks. These capabilities are particularly relevant to point-of-care ultrasound (POCUS) applications, where operator experience with ultrasound may be limited. Instead of displaying B-mode images, a POCUS application using ultrasound spectroscopy can, for example, automatically detect internal abdominal bleeding. In this paper, we present ex vivo tissue phantom studies to demonstrate the accuracy of ultrasound spectroscopy over previous approaches. Our studies suggest that ultrasound spectroscopy provides exceptional accuracy and informative features for classifying blood versus other tissues across image locations and body habitus.
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Affiliation(s)
| | | | - H J Kang
- Kitware, Inc., North Carolina, USA
| | | | - R Kwitt
- University of Salzburg, Austria
| | - M Niethammer
- The University of North Carolina at Chapel Hill, USA
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14
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Jaaniste T, Jia N, Lang T, Goodison-Farnsworth EM, McCormick M, Anderson D. The relationship between parental attitudes and behaviours in the context of paediatric chronic pain. Child Care Health Dev 2016; 42:433-8. [PMID: 26767347 DOI: 10.1111/cch.12312] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 11/01/2015] [Accepted: 11/22/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND Within the context of paediatric chronic pain, parental attitudes are of particular importance given that they have the potential to impact on how parents respond to their child. The current study was designed to assess whether parental attitudes, such as parental confidence and beliefs in their child's ability to function in spite of pain, and parental catastrophising about their child's pain, are associated with parental pain-related behaviours known to be associated with poor child outcomes, such as protectiveness and high levels of monitoring. METHODS Participants were 138 child-parent dyads recruited from a tertiary chronic pain clinic. Patients were aged 8- to 17-years. Prior to the initial clinic appointment, parents completed validated measures of parental pain catastrophising and parental responses to their child's pain. Patients completed measures of functional disability and pain intensity. RESULTS Parents who reported lower confidence in their child's ability to cope with the pain engaged in significantly more protective, monitoring and distracting behaviours, even when controlling for the child's recent level of functioning. They also took more days off work due to their child's pain. Parents who catastrophised more about their child's pain engaged in significantly more protective and monitoring behaviours, even when controlling for the child's recent level of functioning. CONCLUSIONS Parental behaviours in response to their child's pain are significantly related to parental confidence in their child's coping and parental pain-related catastrophising. Clinical interventions may benefit from addressing parental attitudes, especially their confidence in their child's ability to function.
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Affiliation(s)
- T Jaaniste
- Department of Pain and Palliative Care, Sydney Children's Hospital, Randwick, NSW, Australia.,School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia
| | - N Jia
- Department of Pain and Palliative Care, Sydney Children's Hospital, Randwick, NSW, Australia.,School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia
| | - T Lang
- Department of Pain and Palliative Care, Sydney Children's Hospital, Randwick, NSW, Australia.,School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia
| | - E M Goodison-Farnsworth
- Department of Pain and Palliative Care, Sydney Children's Hospital, Randwick, NSW, Australia.,School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia
| | - M McCormick
- Department of Pain and Palliative Care, Sydney Children's Hospital, Randwick, NSW, Australia.,School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia
| | - D Anderson
- Department of Pain and Palliative Care, Sydney Children's Hospital, Randwick, NSW, Australia
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15
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Quevedo HJ, McCormick M, Wisher M, Bengtson RD, Ditmire T. Simultaneous streak and frame interferometry for electron density measurements of laser produced plasmas. Rev Sci Instrum 2016; 87:013107. [PMID: 26827309 DOI: 10.1063/1.4940235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A system of two collinear probe beams with different wavelengths and pulse durations was used to capture simultaneously snapshot interferograms and streaked interferograms of laser produced plasmas. The snapshots measured the two dimensional, path-integrated, electron density on a charge-coupled device while the radial temporal evolution of a one dimensional plasma slice was recorded by a streak camera. This dual-probe combination allowed us to select plasmas that were uniform and axisymmetric along the laser direction suitable for retrieving the continuous evolution of the radial electron density of homogeneous plasmas. Demonstration of this double probe system was done by measuring rapidly evolving plasmas on time scales less than 1 ns produced by the interaction of femtosecond, high intensity, laser pulses with argon gas clusters. Experiments aimed at studying homogeneous plasmas from high intensity laser-gas or laser-cluster interaction could benefit from the use of this probing scheme.
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Affiliation(s)
- H J Quevedo
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - M McCormick
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - M Wisher
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - Roger D Bengtson
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - T Ditmire
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
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16
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McCormick M, Arefiev AV, Quevedo HJ, Bengtson RD, Ditmire T. Observation of self-sustaining relativistic ionization wave launched by a sheath field. Phys Rev Lett 2014; 112:045002. [PMID: 24580461 DOI: 10.1103/physrevlett.112.045002] [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: 02/11/2013] [Indexed: 06/03/2023]
Abstract
We present experimental evidence supported by simulations of a relativistic ionization wave launched into a surrounding gas by the sheath field of a plasma filament with high energy electrons. Such a filament is created by irradiating a clustering gas jet with a short pulse laser (115 fs) at a peak intensity of 5×10(17) W/cm2. We observe an ionization wave propagating radially through the gas for about 2 ps at 0.2-0.5 c after the laser has passed, doubling the initial radius of the filament. The gas is ionized by the sheath field, while the longevity of the wave is explained by a moving field structure that traps the high energy electrons near the boundary, maintaining a strong sheath field despite the significant expansion of the plasma.
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Affiliation(s)
- M McCormick
- Center for High Energy Density Science, The University of Texas, Austin, Texas 78712, USA
| | - A V Arefiev
- Institute for Fusion Studies, The University of Texas, Austin, Texas 78712, USA
| | - H J Quevedo
- Center for High Energy Density Science, The University of Texas, Austin, Texas 78712, USA
| | - R D Bengtson
- Center for High Energy Density Science, The University of Texas, Austin, Texas 78712, USA
| | - T Ditmire
- Center for High Energy Density Science, The University of Texas, Austin, Texas 78712, USA
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Giraudo C, Spessott W, McCormick M. SNARE protein requirements for cytotoxic T lymphocyte-mediated cell killing (P1032). The Journal of Immunology 2013. [DOI: 10.4049/jimmunol.190.supp.65.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Cytotoxic T Lymphocytes (CTLs) and Natural Killer (NK) cells selectively kill virally infected or cancer cells by releasing the content of lytic granules at the contact area with target cells called immunological synapse (IS). SNAREs mediate the maturation and exocytosis of “fully-armed” lytic granules at the IS. Deregulation of SNARE-mediated fusion events, such as in Familial Hemophagocytic Lymphohystiocytosis-4 and -5, in which Syntaxin11 and Syntaxin Binding Protein-2 are mutated, respectively; severely impaired lytic granule release and cytotoxicity of CTL and NK-cells. We have identified cognate SNAREs that specifically interact with Syntaxin11 to perform its function during CTL activation and lytic granule release. Biochemical experiments showed that these interacting proteins can form stable SNARE complexes and confirmed the specificity of these interactions. Stimulated Emission Depletion (STED) Superresolution microscopy studies revealed two pools of Syntaxin 11 in CTLs, one localized to a M6PR-containing vesicular compartment, and one localized at the plasma membrane. We have precisely visualized the localization patterns Sytanxin11-interacting partners and other membrane trafficking proteins involved in this process. These results support the conclusion that the identified Syntaxin11-containing SNARE complex plays a crucial role during CTL-mediated cytotoxicity and FHL pathophysiology.
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Affiliation(s)
- Claudio Giraudo
- 1Pathology and Laboratory Medicine, University of Pennsylvania- Children's Hospital of Philadelphia, Philadelphia, PA
| | - Waldo Spessott
- 1Pathology and Laboratory Medicine, University of Pennsylvania- Children's Hospital of Philadelphia, Philadelphia, PA
| | - Margaret McCormick
- 1Pathology and Laboratory Medicine, University of Pennsylvania- Children's Hospital of Philadelphia, Philadelphia, PA
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Abstract
A hierarchical block-matching motion tracking algorithm for strain imaging is presented. Displacements are estimated with improved robustness and precision by utilizing a Bayesian regularization algorithm and an unbiased subsample interpolation technique. A modified least-squares strain estimator is proposed to estimate strain images from a noisy displacement input while addressing the motion discontinuity at the wall-lumen boundary. Methods to track deformation over the cardiac cycle incorporate a dynamic frame skip criterion to process data frames with sufficient deformation to produce high signal-to-noise displacement and strain images. Algorithms to accumulate displacement and/or strain on particles in a region of interest over the cardiac cycle are described. New methods to visualize and characterize the deformation measured with the full 2D strain tensor are presented. Initial results from patients imaged prior to carotid endarterectomy suggest that strain imaging detects conditions that are traditionally considered high risk including soft plaque composition, unstable morphology, abnormal hemodynamics and shear of plaque against tethering tissue can be exacerbated by neoangiogenesis. For example, a maximum absolute principal strain exceeding 0.2 is observed near calcified regions adjacent to turbulent flow, protrusion of the plaque into the arterial lumen and regions of low echogenicity associated with soft plaques. Non-invasive carotid strain imaging is therefore a potentially useful tool for detecting unstable carotid plaque.
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Affiliation(s)
- M McCormick
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI 53705, USA
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Scott S, Mahmood K, Patel D, Nagurka R, McCormick M, Fang C, Bushi S, Butt A, Altschuler E. 171 High Rate of Positive Urinalysis in Syncope Patients. Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.06.148] [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]
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McCormick M, Hon A, Huang A, Altschuler E. Contrast Polarity Preservation's Role in Perception: Explained and Unexplained Stimuli. J Vis 2012. [DOI: 10.1167/12.9.1212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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22
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Bang W, Quevedo HJ, Dyer G, Rougk J, Kim I, McCormick M, Bernstein AC, Ditmire T. Calibration of the neutron detectors for the cluster fusion experiment on the Texas Petawatt Laser. Rev Sci Instrum 2012; 83:063504. [PMID: 22755624 DOI: 10.1063/1.4729121] [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] [Indexed: 06/01/2023]
Abstract
Three types of neutron detectors (plastic scintillation detectors, indium activation detectors, and CR-39 track detectors) were calibrated for the measurement of 2.45 MeV DD fusion neutron yields from the deuterium cluster fusion experiment on the Texas Petawatt Laser. A Cf-252 neutron source and 2.45 MeV fusion neutrons generated from laser-cluster interaction were used as neutron sources. The scintillation detectors were calibrated such that they can detect up to 10(8) DD fusion neutrons per shot in current mode under high electromagnetic pulse environments. Indium activation detectors successfully measured neutron yields as low as 10(4) per shot and up to 10(11) neutrons. The use of a Cf-252 neutron source allowed cross calibration of CR-39 and indium activation detectors at high neutron yields (∼10(11)). The CR-39 detectors provided consistent measurements of the total neutron yield of Cf-252 when a modified detection efficiency of 4.6×10(-4) was used. The combined use of all three detectors allowed for a detection range of 10(4) to 10(11) neutrons per shot.
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Affiliation(s)
- W Bang
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA.
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Bafadhel M, McKenna S, Terry S, Mistry V, Reid C, Haldar P, McCormick M, Haldar K, Kebadze T, Duvoix A, Lindblad K, Patel H, Rugman P, Dodson P, Jenkins M, Saunders M, Newbold P, Green RH, Venge P, Lomas DA, Barer MR, Johnston SL, Pavord ID, Brightling CE. Acute exacerbations of chronic obstructive pulmonary disease: identification of biologic clusters and their biomarkers. Am J Respir Crit Care Med 2012; 184:662-71. [PMID: 21680942 DOI: 10.1164/rccm.201104-0597oc] [Citation(s) in RCA: 708] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
RATIONALE Exacerbations of chronic obstructive pulmonary disease (COPD) are heterogeneous with respect to inflammation and etiology. OBJECTIVES Investigate biomarker expression in COPD exacerbations to identify biologic clusters and determine biomarkers that recognize clinical COPD exacerbation phenotypes, namely those associated with bacteria, viruses, or eosinophilic airway inflammation. METHODS Patients with COPD were observed for 1 year at stable and exacerbation visits. Biomarkers were measured in sputum and serum. Viruses and selected bacteria were assessed in sputum by polymerase chain reaction and routine diagnostic bacterial culture. Biologic phenotypes were explored using unbiased cluster analysis and biomarkers that differentiated clinical exacerbation phenotypes were investigated. MEASUREMENTS AND MAIN RESULTS A total of 145 patients (101 men and 44 women) entered the study. A total of 182 exacerbations were captured from 86 patients. Four distinct biologic exacerbation clusters were identified. These were bacterial-, viral-, or eosinophilic-predominant, and a fourth associated with limited changes in the inflammatory profile termed “pauciinflammatory.” Of all exacerbations, 55%, 29%, and 28% were associated with bacteria, virus, or a sputum eosinophilia. The biomarkers that best identified these clinical phenotypes were sputum IL-1β, 0.89 (area under receiver operating characteristic curve) (95% confidence interval [CI], 0.83–0.95); serum CXCL10, 0.83 (95% CI, 0.70–0.96); and percentage peripheral eosinophils, 0.85 (95% CI, 0.78–0.93), respectively. CONCLUSIONS The heterogeneity of the biologic response of COPD exacerbations can be defined. Sputum IL-1β, serum CXCL10, and peripheral eosinophils are biomarkers of bacteria-, virus-, or eosinophil-associated exacerbations of COPD. Whether phenotype-specific biomarkers can be applied to direct therapy warrants further investigation.
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Affiliation(s)
- Mona Bafadhel
- Institute for Lung Health, University of Leicester, Leicester, United Kingdom
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Bafadhel M, McCormick M, Saha S, McKenna S, Shelley M, Hargadon B, Mistry V, Reid C, Parker D, Dodson P, Jenkins M, Lloyd A, Rugman P, Newbold P, Brightling CE. Profiling of sputum inflammatory mediators in asthma and chronic obstructive pulmonary disease. Respiration 2011; 83:36-44. [PMID: 21912093 PMCID: PMC3417284 DOI: 10.1159/000330667] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Accepted: 07/05/2011] [Indexed: 01/17/2023] Open
Abstract
Background Asthma and chronic obstructive pulmonary disease (COPD) display features of overlap in airway physiology and airway inflammation. Whether inflammatory phenotypes in airway disease describe similar mediator expression is unknown. Objectives To explore the relationship of airway inflammation and cytokine and chemokine expression in asthma and COPD. Methods Subjects with asthma and COPD (n = 54 and n = 49) were studied. Clinical characteristics and sputum were collected at entry into the study. A 2-step sputum processing method was performed for supernatant and cytospin preparation. Meso Scale Discovery and Luminex platforms were used to measure cytokines, chemokines and matrix metalloproteinase levels. Results Analytes sensitive to dithiothreitol (DTT) that had increased recovery in the 2-step sputum process were IL-1β, 4, 5, 10, 13, IFN-γ, TNFRI, GM-CSF, CCL2, 3, 4, 5, 13 and 17. There was a differential expression in IL-8, TNFRI and TNFRII between asthma and COPD [mean fold difference (95% CI): IL-8, 2.6 (1.3–5.4), p = 0.01; TNFRI, 2.1 (1.3–5.4), p = 0.03; TNFRII, 2.6 (1.2–5.6), p = 0.02]. In neutrophilic and eosinophilic airway inflammation, TNFα, TNFRI, TNFRII, IL-6, IL-8 and IL-5 could differentiate between these phenotypes. However, these phenotypes were unrelated to the diagnosis of asthma or COPD. Conclusion Recovery of sputum mediators sensitive to DTT can be improved using the described sputum processing technique. Within airway inflammatory sub-phenotypes there is a differential pattern of mediator expression that is independent of disease. Whether these inflammatory phenotypes in asthma and COPD confer distinct pathogeneses, therapeutic responses and clinical phenotypes needs to be further evaluated.
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Affiliation(s)
- M Bafadhel
- Institute for Lung Health, University of Leicester, Leicester, UK
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Sode A, Ingle N, McCormick M, Bizzotto D, Gyenge E, Ye S, Knights S, Wilkinson D. Controlling the deposition of Pt nanoparticles within the surface region of Nafion. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2011.04.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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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26
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Bafadhel M, McKenna S, Terry S, Mistry V, Reid C, Haldar P, McCormick M, Haldar K, Kebadze T, Duvoix A, Lindbald K, Rugman P, Dodson P, Jenkins M, Newbold P, Venge P, Green RH, Lomas DA, Barer MR, Johnston SL, Pavord ID, Brightling CE. T6 Acute exacerbations of chronic obstructive pulmonary disease: identification of phenotype-specific biomarkers and biological clusters. Thorax 2010. [DOI: 10.1136/thx.2010.150896.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Teixeira A, Chong L, Matsuoka N, Rowley A, Lue JC, McCormick M, Kerns R, Humayun M. Novel method to quantify traction in a vitrectomy procedure. Br J Ophthalmol 2010; 94:1226-9. [DOI: 10.1136/bjo.2009.166637] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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28
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Doe C, Bafadhel M, Siddiqui S, Desai D, Mistry V, Rugman P, McCormick M, Woods J, May R, Sleeman MA, Anderson IK, Brightling CE. Expression of the T helper 17-associated cytokines IL-17A and IL-17F in asthma and COPD. Chest 2010; 138:1140-7. [PMID: 20538817 PMCID: PMC2972626 DOI: 10.1378/chest.09-3058] [Citation(s) in RCA: 289] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Asthma and COPD are characterized by airway dysfunction and inflammation. Neutrophilic airway inflammation is a common feature of COPD and is recognized in asthma, particularly in severe disease. The T helper (Th) 17 cytokines IL-17A and IL-17F have been implicated in the development of neutrophilic airway inflammation, but their expression in asthma and COPD is uncertain. Methods: We assessed IL-17A and IL-17F expression in the bronchial submucosa from 30 subjects with asthma, 10 ex-smokers with mild to moderate COPD, and 27 nonsmoking and 14 smoking control subjects. Sputum IL-17 concentration was measured in 165 subjects with asthma and 27 with COPD. Results: The median (interquartile range) IL-17A cells/mm2 submucosa was increased in mild to moderate asthma (2.1 [2.4]) compared with healthy control subjects (0.4 [2.8]) but not in severe asthma (P = .04). In COPD, IL-17A+ cells/mm2 submucosa were increased (0.5 [3.7]) compared with nonsmoking control subjects (0 [0]) but not compared with smoking control subjects (P = .046). IL-17F+ cells/mm2 submucosa were increased in severe asthma (2.7 [3.6]) and mild to moderate asthma (1.6 [1.0]) compared with healthy controls subjects (0.7 [1.4]) (P = .001) but was not increased in subjects with COPD. IL-17A and IL-17F were not associated with increased neutrophilic inflammation, but IL-17F was correlated with the submucosal eosinophil count (rs = 0.5, P = .005). The sputum IL-17 concentration in COPD was increased compared with asthma (2 [0-7] pg/mL vs 0 [0-2] pg/mL, P < .0001) and was correlated with post-bronchodilator FEV1% predicted (r = −0.5, P = .008) and FEV1/FVC (r = −0.4, P = .04). Conclusions: Our findings support a potential role for the Th17 cytokines IL-17A and IL-17F in asthma and COPD, but do not demonstrate a relationship with neutrophilic inflammation.
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Affiliation(s)
- Camille Doe
- Institute for Lung Health, University of Leicester, Clinical Sciences Wing, Glenfield Hospital, Groby Rd, Leicester, LE3 9QP, England
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Bafadhel M, Saha S, Siva R, McCormick M, Monteiro W, Rugman P, Dodson P, Pavord ID, Newbold P, Brightling CE. Sputum IL-5 concentration is associated with a sputum eosinophilia and attenuated by corticosteroid therapy in COPD. ACTA ACUST UNITED AC 2009; 78:256-62. [PMID: 19478474 DOI: 10.1159/000221902] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2008] [Accepted: 03/18/2009] [Indexed: 11/19/2022]
Abstract
BACKGROUND Airway inflammation in chronic obstructive pulmonary disease (COPD) is predominately neutrophilic, but some subjects demonstrate eosinophilic airway inflammation. Whether these inflammatory phenotypes have differential cytokine and chemokine expression is unknown. OBJECTIVES To assess the sputum concentrations of cytokines and chemokines and their response to oral corticosteroid therapy in COPD subjects with or without a sputum eosinophilia. METHODS Cytokine and chemokine concentrations were measured using the meso-scale device platform. To assess validity, recovery of exogenous spikes was examined. The concentrations of the validated mediators were measured in COPD sputum from subjects with or without a sputum eosinophilia. In a subgroup with a sputum eosinophilia, the response to oral prednisolone 10 mg for 1 month was examined. RESULTS The recovery in sputum of exogenous spiked mediators was >80% in 11/26 cytokines and chemokines. In supernatants from eosinophilic (n = 39) versus non-eosinophilic (n = 59) sputa, the geometric mean (95% CI) concentration was increased for IL-5 [9.0 (4.5-18) pg/ml vs. 3.6 (2.7-6.3) pg/ml, p = 0.03]. IL-5 alone was correlated with sputum eosinophil counts (r = 0.33, p = 0.001), and was attenuated following treatment with prednisolone [n = 9; mean difference 2.3 pg/ml (0.2-4.3), p = 0.032]. CONCLUSION We have validated the use of the meso-scale device platform for cytokine and chemokine measurements in the sputum supernatants in COPD. Sputum IL-5 was associated with a sputum eosinophilia and was attenuated following oral corticosteroid therapy. Whether this cytokine is important in the pathogenesis of COPD in a subgroup of patients warrants further investigation.
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Affiliation(s)
- M Bafadhel
- Institute for Lung Health, Leicester, UK
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Bernstein AC, McCormick M, Dyer GM, Sanders JC, Ditmire T. Two-beam coupling between filament-forming beams in air. Phys Rev Lett 2009; 102:123902. [PMID: 19392278 DOI: 10.1103/physrevlett.102.123902] [Citation(s) in RCA: 2] [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: 09/29/2008] [Indexed: 05/27/2023]
Abstract
We experimentally demonstrate two-beam coupling between nearly identical filament-forming beams intersecting in air. A 7% amplification of one beam occurs at the energy expense of the other in a single interaction, controllable by adjusting their relative delay by tens of femtoseconds. The data are consistent with the impulsive Raman nonlinear response of the air molecules as the coupling mechanism. The filament conical emission is controllably enhanced or suppressed by the interaction, indicating that two-beam coupling may be an effective means for filament regeneration and control.
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Affiliation(s)
- A C Bernstein
- Department of Physics, University of Texas at Austin, Texas 78712, USA
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31
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Flinchum A, Harris C, DeVerges J, Cummings S, McCormick M. Infection Control: The Role of Facilitator in Process Improvement To Ensure Safety of Reprocessed Medical Equipment. Am J Infect Control 2007. [DOI: 10.1016/j.ajic.2007.04.253] [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: 10/23/2022]
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Ju YE, Janmey PA, McCormick M, Sawyer ES, Flanagan LA. Enhanced neurite growth from mammalian neurons in three-dimensional salmon fibrin gels. Biomaterials 2007; 28:2097-108. [PMID: 17258313 PMCID: PMC1991290 DOI: 10.1016/j.biomaterials.2007.01.008] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [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] [Received: 10/03/2006] [Accepted: 01/01/2007] [Indexed: 11/17/2022]
Abstract
Three-dimensional fibrin matrices have been used as cellular substrates in vitro and as bridging materials for central nervous system repair. Cells can be embedded within fibrin gels since the polymerization process is non-toxic, making fibrin an attractive scaffold for transplanted cells. Most studies have utilized fibrin prepared from human or bovine blood proteins. However, fish fibrin may be well suited for neuronal growth since fish undergo remarkable central nervous system regeneration and molecules implicated in this process are present in fibrin. We assessed the growth of mammalian central nervous system neurons in bovine, human, and salmon fibrin and found that salmon fibrin gels encouraged the greatest degree of neurite (dendrite and axon) growth and were the most resistant to degradation by cellular proteases. The neurite growth-promoting effect was not due to the thrombin used to polymerize the gels nor to any copurifying plasminogen. Copurified fibronectin partially accounted for the effect on neurites, and blockade of fibrinogen/fibrin-binding integrins markedly decreased neurite growth. Anion exchange chromatography revealed different elution profiles for salmon and mammalian fibrinogens. These data demonstrate that salmon fibrin encourages the growth of neurites from mammalian neurons and suggest that salmon fibrin may be a beneficial scaffold for neuronal regrowth after CNS injury.
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Affiliation(s)
- Yo-El Ju
- Division of Experimental Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115
| | - Paul A. Janmey
- Division of Experimental Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115
- Department of Physiology and Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA 19104
| | - Margaret McCormick
- Department of Physiology and Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA 19104
| | | | - Lisa A. Flanagan
- Division of Experimental Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115
- Department of Pathology, School of Medicine, University of California at Irvine, Irvine, CA 92697
- Address correspondence to: Lisa A. Flanagan, Ph.D., Department of Pathology, School of Medicine, University of California at Irvine, D440 Medical Sciences I, Irvine, CA 92697-4800, Tel: (949) 824-5786, Fax: (949) 824-2160,
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Jones GT, Kay IP, Chu JWS, Wilkins GT, Phillips LV, McCormick M, van Rij AM, Williams MJA. Elevated Plasma Active Matrix Metalloproteinase-9 Level Is Associated With Coronary Artery In-Stent Restenosis. Arterioscler Thromb Vasc Biol 2006; 26:e121-5. [PMID: 16690873 DOI: 10.1161/01.atv.0000226544.93089.7f] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [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: 11/16/2022]
Abstract
Objective—
This study aimed to determine whether the plasma levels of matrix metalloproteinase-9 (MMP-9) or tissue inhibitor of metalloproteinases-1 (TIMP-1) were altered in patients with a history of symptomatic in-stent restenosis (ISR).
Methods and Results—
A group of 158 patients with a history of ISR were compared with 128 symptom-free patients. Plasma samples and a detailed risk factor history were collected. Plasma samples were analyzed for pro–MMP-9 and latent MMP-9 and active MMP-9, latent MMP-3, and TIMP-1. Several variables were associated with ISR, including index coronary disease extent and severity (number of diseased vessels and American College of Cardiology/American Heart Association lesion classification), number, diameter, and total length of stent(s) inserted, and plasma high-density lipoprotein cholesterol. Plasma active MMP-9 (odds ratio, 1.96; 95% CI, 1.43 to 2.69) showed independent risk association with ISR. Patients with multiple sites of ISR had significantly higher levels of active MMP-9 compared with patients with only a single ISR lesion or no ISR.
Conclusion—
Plasma active MMP-9 levels may be a useful independent predictor of bare metal stent ISR.
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Affiliation(s)
- Gregory T Jones
- Section of Surgery, University of Otago, Dunedin, New Zealand.
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Jones GT, Kay IP, Chu J, Wilkins G, Phillips L, McCormick M, van Rij A, Williams M. Elevated Plasma Active Matrix Metalloproteinase-9 Level Is Associated With Coronary Artery In-Stent Restenosis. Arterioscler Thromb Vasc Biol 2006. [DOI: 10.1161/atvb.26.7.1538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective—
This study aimed to determine whether the plasma levels of matrix metalloproteinase-9 (MMP-9) or tissue inhibitor of metalloproteinases-1 (TIMP-1) were altered in patients with a history of symptomatic in-stent restenosis (ISR).
Methods and Results—
A group of 158 patients with a history of ISR were compared with 128 symptom-free patients. Plasma samples and a detailed risk factor history were collected. Plasma samples were analyzed for pro–MMP-9 and latent MMP-9 and active MMP-9, latent MMP-3, and TIMP-1. Several variables were associated with ISR, including index coronary disease extent and severity (number of diseased vessels and American College of Cardiology/American Heart Association lesion classification), number, diameter, and total length of stent(s) inserted, and plasma high-density lipoprotein cholesterol. Plasma active MMP-9 (odds ratio, 1.96; 95% CI, 1.43 to 2.69) showed independent risk association with ISR. Patients with multiple sites of ISR had significantly higher levels of active MMP-9 compared with patients with only a single ISR lesion or no ISR.
Conclusion—
Plasma active MMP-9 levels may be a useful independent predictor of bare metal stent ISR.
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35
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Harris C, Flinchum A, Knoll C, Cooley S, McCormick M. Rapid Response: Real Time Capturing of Significant Organisms by a Simple Computer Based Tracking System. Am J Infect Control 2006. [DOI: 10.1016/j.ajic.2006.05.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Muir KW, Halbert HM, Baird TA, McCormick M, Teasdale E. Visual evaluation of perfusion computed tomography in acute stroke accurately estimates infarct volume and tissue viability. J Neurol Neurosurg Psychiatry 2006; 77:334-9. [PMID: 16239323 PMCID: PMC2077700 DOI: 10.1136/jnnp.2005.074179] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [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] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To establish the validity of visual interpretation of immediately processed perfusion computed tomography (CT) maps in acute stroke for prediction of final infarction. METHODS Perfusion CT studies acquired prospectively were reprocessed within six hours of stroke onset using standard CT console software. Four contiguous 5 mm thick images were obtained and maps of time to peak (TTP) and cerebral blood volume (CBV) generated. Volumes of lesions identified only by visual inspection were measured from manually drawn regions of interest. Volumes of tissue with prolonged TTP or reduced CBV were compared with independently calculated volume of infarction on non-contrast CT (NCCT) at 24-48 hours, and with clinical severity using the NIHSS score. Arterial patency at 24-48 h was included in analyses. RESULTS Studies were analysed from 17 patients 150 minutes (median) after stroke onset. Volume of tissue with prolonged TTP correlated with initial NIHSS (r = 0.62, p = 0.009), and with NCCT final infarct volume when arterial occlusion persisted (r = 0.953, p = 0.012). Volume of tissue with reduced CBV correlated with final infarct volume if recanalisation occurred (r = 0.835, p = 0.001). Recanalisation was associated with lower 24 h NIHSS score (6 (IQR, 5 to 9.5) v 19 (18 to 26), p = 0.027), and in 10 patients given rtPA for MCA M1 occlusion, with lower infarct volume (73 v 431 ml, p = 0.002). CONCLUSIONS Visual evaluation of TTP and CBV maps generated by standard perfusion CT software correlated with 24-48 hour CT infarct volumes. Comparison of TTP and CBV maps yields information on tissue viability. Perfusion CT represents a practical technique to aid acute clinical decision making. Recanalisation was a crucial determinant of clinical and radiological outcome.
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Affiliation(s)
- K W Muir
- Division of Clinical Neurosciences, University of Glasgow, Southern General Hospital, 1345 Govan Road, Glasgow G51 4TF, UK.
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37
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Schmid H, Nash M, McCormick M, Walker C, Sands G, LeGrice I, Hunter P. Myocardial topology—an algorithm for building statistically realistic myocardial sheets. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)84073-x] [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: 10/24/2022]
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38
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Berry S, Harris C, McCormick M. A collaborative model to meet community and institutional needs during a medical emergency: Lessons learned from an influenza vaccine shortage. Am J Infect Control 2005. [DOI: 10.1016/j.ajic.2005.04.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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39
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Alcaraz L, Baxter A, Bent J, Bowers K, Braddock M, Cladingboel D, Donald D, Fagura M, Furber M, Laurent C, Lawson M, Mortimore M, McCormick M, Roberts N, Robertson M. Novel P2X7 receptor antagonists. Bioorg Med Chem Lett 2004; 13:4043-6. [PMID: 14592504 DOI: 10.1016/j.bmcl.2003.08.033] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The synthesis and pharmacological evaluation of a new series of potent P2X(7) receptor antagonists is disclosed. The compounds inhibit BzATP-mediated pore formation in THP-1 cells. The distribution of the P2X(7) receptor in inflammatory cells, most notably the macrophage, mast cell and lymphocyte, suggests that P2X(7) antagonists have a significant role to play in the treatment of inflammatory disease.
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Affiliation(s)
- L Alcaraz
- Department of Medicinal Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough LE11 5RH, UK.
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40
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Chamseddine AH, McCormick M, McGregor J, Miller FJ. 5 CHRONIC ELEVATION OF ENDOGENOUS HYDROGEN PEROXIDE DECREASES GROWTH AND MIGRATION OF VASCULAR SMOOTH MUSCLE CELLS. J Investig Med 2004. [DOI: 10.1136/jim-52-suppl2-05] [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: 11/03/2022]
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41
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McCormick M, Smith RN, Graf R, Barrett CJ, Reven L, Spiess HW. NMR Studies of the Effect of Adsorbed Water on Polyelectrolyte Multilayer Films in the Solid State. Macromolecules 2003. [DOI: 10.1021/ma034147x] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. McCormick
- Max Planck Institute for Polymer Research, Postfach 3148, 55118 Mainz, Germany, and Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 2K6, Canada
| | - R. N. Smith
- Max Planck Institute for Polymer Research, Postfach 3148, 55118 Mainz, Germany, and Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 2K6, Canada
| | - R. Graf
- Max Planck Institute for Polymer Research, Postfach 3148, 55118 Mainz, Germany, and Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 2K6, Canada
| | - C. J. Barrett
- Max Planck Institute for Polymer Research, Postfach 3148, 55118 Mainz, Germany, and Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 2K6, Canada
| | - L. Reven
- Max Planck Institute for Polymer Research, Postfach 3148, 55118 Mainz, Germany, and Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 2K6, Canada
| | - H. W. Spiess
- Max Planck Institute for Polymer Research, Postfach 3148, 55118 Mainz, Germany, and Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 2K6, Canada
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Liu W, Flynn PF, Fuentes EJ, Kranz JK, McCormick M, Wand AJ. Main chain and side chain dynamics of oxidized flavodoxin from Cyanobacterium anabaena. Biochemistry 2001; 40:14744-53. [PMID: 11732893 DOI: 10.1021/bi011073d] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [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: 11/28/2022]
Abstract
Oxidized flavodoxin from Cyanobacterium anabaena PCC 7119 is used as a model system to investigate the fast internal dynamics of a flavin-bearing protein. Virtually complete backbone and side chain resonance NMR assignments of an oxidized flavodoxin point mutant (C55A) have been determined. Backbone and side chain dynamics in flavodoxin (C55A) were investigated using (15)N amide and deuterium methyl NMR relaxation methods. The squared generalized order parameters (S(NH)(2)) for backbone amide N-H bonds are found to be uniformly high (<S(NH)(2)> approximately 0.923 over 109 residues in regular secondary structure), indicating considerable restriction of motion in the backbone of the protein. In contrast, methyl-bearing side chains are considerably heterogeneous in their amplitude of motion, as indicated by obtained symmetry axis squared generalized order parameters (S(axis)(2)). However, in comparison to nonprosthetic group-bearing proteins studied with these NMR relaxation methods, the side chains of oxidized flavodoxin are unusually rigid.
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Affiliation(s)
- W Liu
- The Johnson Research Foundation and Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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43
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Bowyer JD, Majid MA, Ah-Fat F, Kaye SB, Kokai GK, May PL, McCormick M. Giant cemento-ossifying fibroma of the maxilla causing proptosis in a young patient. J Pediatr Ophthalmol Strabismus 2001; 38:359-62. [PMID: 11759775 DOI: 10.3928/0191-3913-20011101-11] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- J D Bowyer
- Department of Ophthalmology, Royal Liverpool Childrens Hospital, United Kingdom
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Manolache S, Aggoun A, McCormick M, Davies N, Kung SY. Analytical model of a three-dimensional integral image recording system that uses circular- and hexagonal-based spherical surface microlenses. J Opt Soc Am A Opt Image Sci Vis 2001; 18:1814-1821. [PMID: 11488485 DOI: 10.1364/josaa.18.001814] [Citation(s) in RCA: 11] [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] [Indexed: 05/23/2023]
Abstract
A mathematical model for a three-dimensional omnidirectional integral recording camera system that uses either circular- or hexagonal-based spherical surface microlens arrays is derived. The geometry of the image formation and recording process is fully described. Matlab is then used to establish the number of recorded micro-intensity distributions representing a single object point and their dependence on spatial position. The point-spread function for the entire optical process for both close and remote imaging is obtained, and the influence of depth on the point-spread dimensions for each type of microlens and imaging condition is discussed. Comparisons of the two arrangements are made, based on the illustrative numerical results presented.
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Affiliation(s)
- S Manolache
- Department of Electrical and Electronic Engineering, De Montfort University, The Gateway, Leicester, UK.
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Younossi ZM, Boparai N, Price LL, Kiwi ML, McCormick M, Guyatt G. Health-related quality of life in chronic liver disease: the impact of type and severity of disease. Am J Gastroenterol 2001; 96:2199-205. [PMID: 11467653 DOI: 10.1111/j.1572-0241.2001.03956.x] [Citation(s) in RCA: 235] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The type and severity of chronic liver disease may have different effects on health-related quality of life (HRQL). The aim of our study was to determine whether HRQL in patients with chronic liver disease differs by type and severity of disease and to identify which clinical and physiological factors affect this impairment. METHODS In this study, HRQL was measured with a generic (Short Form 36) and a liver disease-specific (Chronic Liver Disease Questionnaire) questionnaire. Clinical, demographic, and laboratory data were collected at office visits. Patient's HRQL scores were compared with the published norms and to the chronically ill populations. A total of 353 patients (mean age 50 yr, 51% men) with chronic liver disease, either viral disease (hepatitis B and C), cholestatic disease (primary biliary cirrhosis or primary sclerosing cholangitis), or hepatocellular disease were enrolled in the study. RESULTS In general, HRQL in patients with chronic liver disease was lower than the normal population and was similar to that of patients with chronic obstructive pulmonary disease or congestive heart failure. In cirrhotic patients, some dimensions of HRQL were less impaired in patients with cholestatic disease than in those with hepatocellular diseases. More severe disease (higher Child's class) was associated with a lower Chronic Liver Disease Questionnaire score and the Short Form 36's physical component summary scores. Older age had a weak negative association with the physical aspects of HRQL. CONCLUSIONS We conclude that chronic liver disease substantially reduces HRQL, and this impact does not differ markedly by type of disease. Older age and measures of disease severity were associated with poorer HRQL.
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Affiliation(s)
- R T Raines
- Department of Biochemistry, University of Wisconsin-Madison 53706, USA
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Abstract
OBJECTIVES Quantitative measures of the value patients place on the state of their health is crucial to understanding their experience, and to calculate quality-adjusted years of life for economic analyses. Patients' values in chronic liver disease remain unexplored, although experts' estimates of utilities have been examined. Our study tests the validity of a widely used utility measure in chronic liver disease and, if valid, establishes the decrement in health-related quality associated with chronic liver disease. METHODS A total of 120 patients with chronic liver disease participated in the study (age 50 +/- 10 yr; men 53%; cirrhosis 51%, chronic viral hepatitis 51%, and chronic cholestatic liver disease 30%). All patients completed three instruments: Health Utility Index Mark 2 (scores 0-1), Short Form-36 (scale scores 0-100), and a disease-specific health-related quality of life instrument (Chronic Liver Disease Questionnaire; scores 1-7). RESULTS We found a moderate to strong correlation between scores on the three measures and that impairment worsened as the severity of disease worsened. Patients without cirrhosis and those with Child's A cirrhosis showed substantial decrement in utilities (0.82 and 0.83, respectively) in the range of patients surviving brain tumor. Those with Child's B and C showed a greater decrement (0.67 and 0.56) that was in the range experienced by patients who survive a stroke (0.67). Utilities assessed by Health Utility Index Mark 2 differed substantially from estimates by "expert." CONCLUSIONS We conclude that utilities should be based on patient reports and that the data from this study can inform economic analyses in studies of patients with chronic liver disease.
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Affiliation(s)
- Z M Younossi
- Department of Gastroenterology, The Cleveland Clinic Foundation, Ohio, USA
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Kraemer WJ, Keuning M, Ratamess NA, Volek JS, McCormick M, Bush JA, Nindl BC, Gordon SE, Mazzetti SA, Newton RU, Gómez AL, Wickham RB, Rubin MR, Häkkinen K. Resistance training combined with bench-step aerobics enhances women's health profile. Med Sci Sports Exerc 2001; 33:259-69. [PMID: 11224816 DOI: 10.1097/00005768-200102000-00015] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [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: 11/25/2022]
Abstract
PURPOSE The purpose of this study was to investigate the comprehensive physiological alterations that take place during the combination of bench-step aerobics (BSA) and resistance exercise training. METHODS Thirty-five healthy, active women were randomly assigned to one of four groups that either a) performed 25 min of BSA only (SA25); b) performed a combination of 25 min of BSA and a multiple-set upper and lower body resistance exercise program (SAR); c) performed 40 min of BSA only (SA40); or d) served as a control group (C), only performing activities of daily living. Direct assessments for body composition, aerobic fitness, muscular strength, endurance, power, and cross-sectional area were performed 1 wk before and after 12 wk of training. RESULTS All training groups significantly improved peak VO(2) (3.7 to 5.3 mL O(2).kg(-1).min(-1)), with the greatest improvement observed in the SAR group (P = 0.05). Significant reductions in preexercise heart rates (8-9 bpm) and body fat percent (5--6%) were observed in all training groups after training. Significant reductions in resting diastolic blood pressure were observed for the SAR and SA40 groups (6.7 and 5.8 mm Hg, respectively). Muscular strength and endurance only improved significantly in the SAR group (21 and 11% respectively). All groups demonstrated increased lower body power (11--14%), but only the SAR group significantly improved upper body power (32%). Thigh muscle cross-sectional areas measured via magnetic resonance imaging (MRI) increased primarily for the SAR group. CONCLUSION BSA is an exercise modality effective for improving physical fitness and body composition in healthy women. The addition of resistance exercise appears to enhance the total fitness profile by improving muscular performances, muscle morphology, and cardiovascular fitness greater than from performing BSA alone. Therefore, the inclusion of both modalities to an exercise program is most effective for improving total body fitness and a woman's health profile.
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Affiliation(s)
- W J Kraemer
- The Human Performance Laboratory, Ball State University, Muncie, IN 47306, USA.
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Abstract
An electrical impedance tomography (EIT) simulation system for breast imaging has been developed using impedance data from a previous study and a finite-element model (FEM). This system has the functionality to construct various models of the breast, image the boundary voltages developed from any injection schema and provide parametric Cole-Cole modelling. Simulations indicate that breast carcinoma can be imaged and multi-frequency Cole-Cole dispersion data can be extracted. This is intended as the first stage towards providing an artificial intelligence based system capable of producing clinically relevant analytical data.
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Affiliation(s)
- W Wang
- 3D Imaging and Biomedical Engineering, Faculty of Computing Sciences and Engineering, De Montfort University, Leicester, UK.
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50
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Abstract
This study is designed to measure the impact of orthotopic liver transplantation (OLT) on patients' health-related quality of life. Two types of health-related quality-of-life questionnaires were administered at baseline and after OLT: generic (Medical Outcomes Study Short Form 36) and liver specific (Chronic Liver Disease Questionnaire). We also recorded clinical, demographic, and laboratory data. Pre-OLT scores of liver transplant candidates were compared with those of the general population and patients with congestive heart failure (CHF) and chronic obstructive pulmonary disease (COPD). Thirty-seven liver transplant candidates were evaluated: 25 men and 12 women; age, 50.2 +/- 12 years; Child's class A, 3 patients; class B, 30 patients; class C, 4 patients; and galactose elimination capacity, 277 +/- 81. Health-related quality-of-life scores for patients awaiting liver transplants were significantly lower than those for patients with COPD and CHF and those in the general population. Sex and cause of liver disease did not affect the scores. There was a weak but significant inverse correlation between some aspects of health-related quality of life and both age (r = -0.31 to -0.34) and worsening of the Child-Pugh score (r = -0.32 to -0.43). All measured aspects of health-related quality of life significantly improved after OLT, and mental health scores were indistinguishable from the population norms. Similar improvements were evident in physical and disease-specific aspects of health-related quality of life, but some residual dysfunction persisted.
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Affiliation(s)
- Z M Younossi
- Liver Transplant Center, The Cleveland Clinic Foundation, Cleveland, OH, USA.
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