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Jaroonwanichkul S, Matthews S, Pourakbar S, Dai H, Wang-Weinman T. Multiple asymptomatic, hyperkeratotic minute filiform papules. JAAD Case Rep 2024; 45:68-70. [PMID: 38406624 PMCID: PMC10883976 DOI: 10.1016/j.jdcr.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024] Open
Affiliation(s)
- Sandra Jaroonwanichkul
- Department of Dermatology, University of Missouri – Kansas City School of Medicine, Kansas City, Missouri
| | - Stephanie Matthews
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
| | - Sarah Pourakbar
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
| | - Hongyan Dai
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Ting Wang-Weinman
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
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2
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Zouache MA, Richards BT, Pappas CM, Anstadt RA, Liu J, Corsetti T, Matthews S, Seager NA, Schmitz-Valckenberg S, Fleckenstein M, Hubbard WC, Thomas J, Hageman JL, Williams BL, Hageman GS. Levels of complement factor H-related 4 protein do not influence susceptibility to age-related macular degeneration or its course of progression. Nat Commun 2024; 15:443. [PMID: 38200010 PMCID: PMC10781981 DOI: 10.1038/s41467-023-44605-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Dysregulation of the alternative pathway (AP) of the complement system is a significant contributor to age-related macular degeneration (AMD), a primary cause of irreversible vision loss worldwide. Here, we assess the contribution of the liver-produced complement factor H-related 4 protein (FHR-4) to AMD initiation and course of progression. We show that FHR-4 variation in plasma and at the primary location of AMD-associated pathology, the retinal pigment epithelium/Bruch's membrane/choroid interface, is entirely explained by three independent quantitative trait loci (QTL). Using two distinct cohorts composed of a combined 14,965 controls and 20,741 cases, we ascertain that independent QTLs for FHR-4 are distinct from variants causally associated with AMD, and that FHR-4 variation is not independently associated with disease. Additionally, FHR-4 does not appear to influence AMD progression course among patients with disease driven predominantly by AP dysregulation. Modulation of FHR-4 is therefore unlikely to be an effective therapeutic strategy for AMD.
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Affiliation(s)
- M A Zouache
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA.
| | - B T Richards
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - C M Pappas
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - R A Anstadt
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - J Liu
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - T Corsetti
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - S Matthews
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - N A Seager
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - S Schmitz-Valckenberg
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - M Fleckenstein
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - W C Hubbard
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - J Thomas
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - J L Hageman
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - B L Williams
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA
| | - G S Hageman
- Sharon Eccles Steele Center for Translational Medicine, John A. Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah, Salt Lake City, UT, USA.
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3
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Cerci FB, Fantini BC, Matthews S, Tolkachjov SN. Preoperative Marking to Approximate Forehead Rhytids for Precisely Camouflaging Scars. Kans J Med 2023; 16:271. [PMID: 37954884 PMCID: PMC10635687 DOI: 10.17161/kjm.vol16.21184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Affiliation(s)
- Felipe B Cerci
- Division of Dermatology, Hospital Universitário Evangélico Mackenzie, Curitiba, Brazil
- Postgraduate Program - Internal Medicine and Health Sciences, Universidade Federal do Paraná, Curitiba, Brazil
- Clínica Cepelle - Mohs Surgery Unit, Curitiba, Brazil
| | - Bruno C Fantini
- Department of Dermatology, Hospital das Clínicas da Universidade da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo, Ribeirão Preto, Brazil
- Clínica Dermatológica, Franca, Brazil
| | | | - Stanislav N Tolkachjov
- Epiphany Dermatology, Dallas, TX
- Department of Dermatology, The University of Texas at Southwestern Medical Center, Dallas, TX
- Division of Dermatology, Baylor Scott & White, Dallas, TX
- Texas A&M College of Medicine, Dallas, TX
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4
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Furuhama A, Kitazawa A, Yao J, Matos Dos Santos CE, Rathman J, Yang C, Ribeiro JV, Cross K, Myatt G, Raitano G, Benfenati E, Jeliazkova N, Saiakhov R, Chakravarti S, Foster RS, Bossa C, Battistelli CL, Benigni R, Sawada T, Wasada H, Hashimoto T, Wu M, Barzilay R, Daga PR, Clark RD, Mestres J, Montero A, Gregori-Puigjané E, Petkov P, Ivanova H, Mekenyan O, Matthews S, Guan D, Spicer J, Lui R, Uesawa Y, Kurosaki K, Matsuzaka Y, Sasaki S, Cronin MTD, Belfield SJ, Firman JW, Spînu N, Qiu M, Keca JM, Gini G, Li T, Tong W, Hong H, Liu Z, Igarashi Y, Yamada H, Sugiyama KI, Honma M. Evaluation of QSAR models for predicting mutagenicity: outcome of the Second Ames/QSAR international challenge project. SAR QSAR Environ Res 2023; 34:983-1001. [PMID: 38047445 DOI: 10.1080/1062936x.2023.2284902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023]
Abstract
Quantitative structure-activity relationship (QSAR) models are powerful in silico tools for predicting the mutagenicity of unstable compounds, impurities and metabolites that are difficult to examine using the Ames test. Ideally, Ames/QSAR models for regulatory use should demonstrate high sensitivity, low false-negative rate and wide coverage of chemical space. To promote superior model development, the Division of Genetics and Mutagenesis, National Institute of Health Sciences, Japan (DGM/NIHS), conducted the Second Ames/QSAR International Challenge Project (2020-2022) as a successor to the First Project (2014-2017), with 21 teams from 11 countries participating. The DGM/NIHS provided a curated training dataset of approximately 12,000 chemicals and a trial dataset of approximately 1,600 chemicals, and each participating team predicted the Ames mutagenicity of each trial chemical using various Ames/QSAR models. The DGM/NIHS then provided the Ames test results for trial chemicals to assist in model improvement. Although overall model performance on the Second Project was not superior to that on the First, models from the eight teams participating in both projects achieved higher sensitivity than models from teams participating in only the Second Project. Thus, these evaluations have facilitated the development of QSAR models.
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Affiliation(s)
- A Furuhama
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - A Kitazawa
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - J Yao
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials (Chinese Academy of Sciences), Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences (SIOC, CAS), Shanghai, China
| | - C E Matos Dos Santos
- Department of Computational Toxicology and In Silico Innovations, Altox Ltd, São Paulo-SP, Brazil
| | - J Rathman
- MN-AM, Nuremberg, Germany/Columbus, OH, USA
| | - C Yang
- MN-AM, Nuremberg, Germany/Columbus, OH, USA
| | | | - K Cross
- In Silico Department, Instem, Conshohocken, PA, USA
| | - G Myatt
- In Silico Department, Instem, Conshohocken, PA, USA
| | - G Raitano
- Laboratory of Environmental Toxicology and Chemistry, Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Milano, Italy
| | - E Benfenati
- Laboratory of Environmental Toxicology and Chemistry, Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Milano, Italy
| | | | | | | | | | - C Bossa
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - C Laura Battistelli
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - R Benigni
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
- Alpha-PreTox, Rome, Italy
| | - T Sawada
- Faculty of Regional Studies, Gifu University, Gifu, Japan
- xenoBiotic Inc, Gifu, Japan
| | - H Wasada
- Faculty of Regional Studies, Gifu University, Gifu, Japan
| | - T Hashimoto
- Faculty of Regional Studies, Gifu University, Gifu, Japan
| | - M Wu
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - R Barzilay
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - P R Daga
- Simulations Plus, Lancaster, CA, USA
| | - R D Clark
- Simulations Plus, Lancaster, CA, USA
| | | | | | | | - P Petkov
- LMC - Bourgas University, Bourgas, Bulgaria
| | - H Ivanova
- LMC - Bourgas University, Bourgas, Bulgaria
| | - O Mekenyan
- LMC - Bourgas University, Bourgas, Bulgaria
| | - S Matthews
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - D Guan
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - J Spicer
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - R Lui
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Y Uesawa
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - K Kurosaki
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - Y Matsuzaka
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - S Sasaki
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - M T D Cronin
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - S J Belfield
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - J W Firman
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - N Spînu
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - M Qiu
- Evergreen AI, Inc, Toronto, Canada
| | - J M Keca
- Evergreen AI, Inc, Toronto, Canada
| | - G Gini
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milano, Italy
| | - T Li
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - W Tong
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - H Hong
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - Z Liu
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
- Integrative Toxicology, Nonclinical Drug Safety, Boehringer Ingelheim Pharmaceuticals, Inc, Ridgefield, CT, USA
| | - Y Igarashi
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - H Yamada
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - K-I Sugiyama
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - M Honma
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
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Jaroonwanichkul S, Fan E, Matthews S, Ho BV, Hall JC. Acral Nodular Melanoma at a Site of Trauma. Kans J Med 2023; 16:187-188. [PMID: 37539371 PMCID: PMC10395766 DOI: 10.17161/kjm.vol16.19501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 06/09/2023] [Indexed: 08/05/2023] Open
Affiliation(s)
| | - Emily Fan
- University of Kansas School of Medicine, Kansas City, KS
| | | | - Bao Vincent Ho
- University of Kansas School of Medicine, Kansas City, KS
| | - John C Hall
- St. Luke's Hospital of Kansas City, Kansas City, MO
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Kostansek JA, Latona GJ, Heruye SH, Matthews S, Bockman CS, Simeone KA, Simeone TA. Orexin receptors regulate hippocampal sharp wave-ripple complexes in ex vivo slices. Eur J Pharmacol 2023; 950:175763. [PMID: 37146705 DOI: 10.1016/j.ejphar.2023.175763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/13/2023] [Accepted: 05/02/2023] [Indexed: 05/07/2023]
Abstract
Orexin is a neuromodulatory peptide produced by lateral hypothalamic orexin neurons and binds to G-protein-coupled orexin-1 receptor and orexin-2 receptors. Whether orexin modulates learning and memory is not fully understood. Orexin has biphasic effects on learning and memory: promoting learning and memory at homeostatic levels and inhibiting at supra- and sub-homeostatic levels. Hippocampal sharp wave-ripples encode memory information and are essential for memory consolidation and retrieval. The role of orexin on sharp wave-ripples in hippocampal CA1 remains unknown. Here, we used multi-electrode array recordings in acute ex vivo hippocampal slices to determine the effects of orexin receptor antagonists on sharp wave-ripples. Bath-application of either the orexin-1 receptor antagonist N-(2-Methyl-6-benzoxazolyl)-N'-1,5-naphthyridin-4-yl urea (SB-334867) or the orexin-2 receptor antagonist N-Ethyl-2-[(6-methoxy-3-pyridinyl)[(2-methylphenyl)sulfonyl]amino]-N-(3-pyridinylmethyl)-acetamide (EMPA) reduced sharp wave and ripple incidence, sharp wave amplitude, and sharp wave duration. SB-334867 and EMPA effects on sharp wave amplitude and duration were equivalent, whereas EMPA exhibited a greater reduction of sharp wave and ripple incidence. EMPA also increased ripple duration, whereas SB-334867 had no effect. Inhibition of both orexin receptors with a dual orexin receptor antagonist N-[1,1'-Biphenyl]-2-yl-1-[2-[(1-methyl-1H-benzimidazol-2-yl)thio]acetyl-2-pyrrolidinedicarboxamide (TCS-1102) had effects similar to EMPA, however, sharp wave amplitude and duration were unaffected. Region-specific expression of orexin receptors suggests orexin may regulate sharp wave generation in CA3, dentate gyrus-mediated sharp wave modification, sharp wave propagation to CA1, and local ripple emergence in CA1. Our study indicates an orexin contribution to hippocampal sharp wave-ripple complexes and suggests a mechanism by which sub-homeostatic concentrations of orexin may inhibit learning and memory function.
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Affiliation(s)
- Joseph A Kostansek
- Creighton University, School of Medicine, Department of Pharmacology & Neuroscience, Omaha, NE, 68174, USA.
| | - Gavin J Latona
- Creighton University, School of Medicine, Department of Pharmacology & Neuroscience, Omaha, NE, 68174, USA
| | - Segewkal H Heruye
- Creighton University, School of Medicine, Department of Pharmacology & Neuroscience, Omaha, NE, 68174, USA
| | - Stephanie Matthews
- Creighton University, School of Medicine, Department of Pharmacology & Neuroscience, Omaha, NE, 68174, USA
| | - Charles S Bockman
- Creighton University, School of Medicine, Department of Pharmacology & Neuroscience, Omaha, NE, 68174, USA
| | - Kristina A Simeone
- Creighton University, School of Medicine, Department of Pharmacology & Neuroscience, Omaha, NE, 68174, USA
| | - Timothy A Simeone
- Creighton University, School of Medicine, Department of Pharmacology & Neuroscience, Omaha, NE, 68174, USA.
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Matthews S, Dallo C, Tate J. Generalized Essential Telangiectasia. JAMA Dermatol 2023:2804016. [PMID: 37074704 DOI: 10.1001/jamadermatol.2022.6229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Affiliation(s)
- Stephanie Matthews
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
| | - Christopher Dallo
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
| | - Jesalyn Tate
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
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Burn D, Hoey AS, Matthews S, Harrison HB, Pratchett MS. Differential bleaching susceptibility among coral taxa and colony sizes, relative to bleaching severity across Australia's Great Barrier Reef and Coral Sea Marine Parks. Mar Pollut Bull 2023; 191:114907. [PMID: 37080018 DOI: 10.1016/j.marpolbul.2023.114907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/21/2023] [Accepted: 04/02/2023] [Indexed: 05/03/2023]
Abstract
Climate-induced coral bleaching represents the foremost threat to coral assemblages globally, however bleaching susceptibility varies among and within coral taxa. We compared bleaching susceptibility among 10 coral morpho-taxa and two colony size classes relative to reef-scale bleaching severity at 33 reefs across the Great Barrier Reef and Coral Sea Marine Parks in February-March 2020. Colony size and bleaching severity caused the hierarchy of bleaching susceptibility among taxa to change considerably. Notably, massive Porites shifted from being among the least likely taxa to exhibit bleaching, to among the most susceptible as overall bleaching severity increased. Juvenile corals (≤5 cm diameter) were generally more resistant to bleaching, except for Montipora and Pocillopora colonies, which were more likely to bleach than adults (>5 cm). These findings suggest that colony size and reef-scale bleaching severity are important determinants of bleaching susceptibility among taxa and provide insights into possible shifts in the structure of coral assemblages caused by bleaching events.
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Affiliation(s)
- D Burn
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia.
| | - A S Hoey
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - S Matthews
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - H B Harrison
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia; School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK
| | - M S Pratchett
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
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Cheng C, Walsh A, Jones S, Matthews S, Weerasooriya D, Fernandes RJ, McKenzie CA. Development, implementation and evaluation of a seven-day clinical pharmacy service in a tertiary referral teaching hospital during surge-2 of the COVID-19 pandemic. Int J Clin Pharm 2023; 45:293-303. [PMID: 36367601 PMCID: PMC9650667 DOI: 10.1007/s11096-022-01475-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/17/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Seven-day clinical pharmacy services in the acute sector of the National Health Service are limited. There is a paucity of evidential patient benefit. This limits investment and infrastructure, despite United Kingdom wide calls. AIM To optimise medicines seven-days a week during surge-2 of the COVID-19 pandemic through implementation of a seven-day clinical pharmacy service. This paper describes service development, evaluation and sustainability. SETTING A tertiary-referral teaching hospital, London, United Kingdom. DEVELOPMENT The seven-day clinical pharmacy service was developed to critical care, acute and general medical patients. Clinical leads developed the service specification and defined priorities, targeting complex patients and transfer of care. Contributing staff were briefed and training materials developed. IMPLEMENTATION The service was implemented in January 2021 for 11 weeks. Multidisciplinary team communication brought challenges; strategies were employed to overcome these. EVALUATION A prospective observational study was conducted in intervention wards over two weekends in February 2021. 1584 beds were occupied and 602 patients included. 346 interventions were reported and rated; 85.6% had high or moderate impact; 56.7% were time-critical. The proportion of medicines reconciliation within 24-h of admission was analysed across the hospital between November 2020 and May 2021. During implementation, patients admitted Friday-Sunday were more likely to receive medicines reconciliation within 24-h (RR 1.41 (95% CI 1.34-1.47), p < 0.001). Rostered services were delivered sustainably in terms of shift-fill rate and medicines reconciliation outcome. CONCLUSION Seven-day clinical pharmacy services benefit patient outcome through early medicines reconciliation and intervention. Investment to permanently embed the service was sustained.
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Affiliation(s)
- C Cheng
- Pharmacy Department, Kings College Hospital, London, SE5 9RS, UK.
- Institute of Pharmaceutical Sciences and Institute of Psychiatry, Psychology, Neurosciences Kings College London, London, SE1 9RT, UK.
| | - A Walsh
- Pharmacy Department, Kings College Hospital, London, SE5 9RS, UK
| | - S Jones
- Pharmacy Department, Kings College Hospital, London, SE5 9RS, UK
- Institute of Pharmaceutical Sciences and Institute of Psychiatry, Psychology, Neurosciences Kings College London, London, SE1 9RT, UK
| | - S Matthews
- Pharmacy Department, Medway NHS Foundation Trust, Gillingham, ME7 5NY, UK
| | - D Weerasooriya
- Pharmacy Department, Kings College Hospital, London, SE5 9RS, UK
| | - R J Fernandes
- Pharmacy Department, Kings College Hospital, London, SE5 9RS, UK
| | - C A McKenzie
- Pharmacy Department, Kings College Hospital, London, SE5 9RS, UK
- Institute of Pharmaceutical Sciences and Institute of Psychiatry, Psychology, Neurosciences Kings College London, London, SE1 9RT, UK
- Pharmacy and Critical Care, University Hospital Southampton, Tremona Road, Southampton, S016 6YD, UK
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10
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Adler AJ, Randall T, Schwartz LN, Drown L, Matthews S, Pace LE, Mugabo C, Kateera F, Bukhman G, Baganizi E, Ng'ang'a LM. What women want: A mixed-methods study of women's health priorities, preferences, and experiences in care in three Rwandan rural districts. Int J Gynaecol Obstet 2023. [PMID: 36815725 DOI: 10.1002/ijgo.14735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/17/2022] [Accepted: 02/20/2023] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To explore Rwandan women's experiences, priorities, and preferences in accessing health care for non-pregnancy-related conditions and inform development of healthcare services related to these conditions among women of reproductive age at district hospitals and health centers in Rwanda. METHODS We used a mixed-methods, exploratory sequential design. Semi-structured qualitative interviews were conducted with Rwandan women and coded thematically. A cross-sectional quantitative survey based on the qualitative data was administered to women attending health centers. RESULTS Seventeen interviews and 150 surveys were conducted. Women identified conditions including back pain, gynecologic cancers, and abnormal vaginal bleeding as concerns. They generally reported positive experiences while accessing health care and knowledge of accessing health care. Barriers to care were identified, including transportation costs and inability to miss work. Women expressed a desire for more control over their care and the importance of maintaining their dignity while accessing health care. CONCLUSION These findings provide useful insights to inform development of non-pregnancy-related healthcare services for women in Rwanda according to their priorities and preferences. The reported end-user health concerns, barriers to care, and diminished control over their care point to a need to evolve health systems around user-tailored needs and design interventions optimizing access whilst promoting dignified care.
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Affiliation(s)
- A J Adler
- Center for Integration Science, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - T Randall
- Massachusetts General Hospital, Boston, Massachusetts, USA
| | - L N Schwartz
- Harvard Medical School, Boston, Massachusetts, USA
| | - L Drown
- Center for Integration Science, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - S Matthews
- Center for Integration Science, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - L E Pace
- Center for Integration Science, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - C Mugabo
- Partners In Health/Inshuti Mu Buzima, Kigali, Rwanda
| | - F Kateera
- Partners In Health/Inshuti Mu Buzima, Kigali, Rwanda
| | - G Bukhman
- Center for Integration Science, Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Program in Global Noncommunicable Disease and Social Change, Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, USA.,Partners in Health, Boston, Massachusetts, USA
| | - E Baganizi
- Partners In Health/Inshuti Mu Buzima, Kigali, Rwanda
| | - L M Ng'ang'a
- Partners In Health/Inshuti Mu Buzima, Kigali, Rwanda
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11
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Matthews S, Ho BVK, Pourakbar S, Jibbe A. Chromoblastomycosis of the face in solid organ transplant patient. JAAD Case Rep 2022; 31:69-71. [PMID: 36545482 PMCID: PMC9761327 DOI: 10.1016/j.jdcr.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Stephanie Matthews
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
- School of Medicine, University of Kansas Medical Center, Kansas City, Kansas
- Correspondence to: Stephanie Matthews, BA, Division of Dermatology, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160.
| | - Bao Vincent K. Ho
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
| | - Sarah Pourakbar
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
| | - Atieh Jibbe
- Division of Dermatology, University of Kansas Medical Center, Kansas City, Kansas
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12
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Matthews S, Young C, Litzner B. Yellow Papules and Plaques on a Child. Cutis 2022; 110:262-269. [PMID: 36638371 DOI: 10.12788/cutis.0652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Stephanie Matthews
- Ms. Matthews is from the University of Kansas School of Medicine, Prairie Village. Ms. Young and Dr. Litzner are from Heartland Dermatology, Wichita, Kansas
| | - Colleen Young
- Ms. Matthews is from the University of Kansas School of Medicine, Prairie Village. Ms. Young and Dr. Litzner are from Heartland Dermatology, Wichita, Kansas
| | - Brandon Litzner
- Ms. Matthews is from the University of Kansas School of Medicine, Prairie Village. Ms. Young and Dr. Litzner are from Heartland Dermatology, Wichita, Kansas
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13
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Matthews S, O"neil A, Sanders J, Buttery A, Maraosco S, Fredericks S, Martorella G, Keenan N, Ganes A, Wynne R. Sex-specific differences in mortality after first time, isolated coronary artery bypass graft surgery: a systematic review and meta-analysis of randomized controlled trials. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
BACKGROUND
Evidence quantifying sex-specific differences in cardiac surgical outcomes is scant.
PURPOSE
The purpose of this review was to determine whether contemporary evidence indicates Coronary Artery Bypass Graft Surgery (CABGS) is differentially efficacious than alternative procedures by sex on mortality outcomes.
METHODS
EMBASE, CINAHL, Medline and Cochrane Library databases were searched (January 2010-April 2020). English language, randomized controlled trials, comparing isolated CABGS to an alternative revascularization strategy in adults, with analyses comparing sex-specific differences in mortality were included. Analyses of incidence data was performed using Mantel-Haenszel fixed-effects modelling, Cochrane RoB2 tool and CONSORT checklist. PROSPERO Registration ID: CRD42020181673.
RESULTS
The search yielded 4459 citations, with 29 articles for full-text review revealing 9 eligible studies with variability in time to follow-up. In contrast to men, mortality risk for women was lower in pooled analyses (RR 0.95, 95% CI 0.85-1.05, p = 0.33) but higher in sensitivity analyses excluding ‘high-risk’ patients (RR 1.18, 95% CI 0.99-1.40, p = 0.07). At 30-days and 10 years, women had an 18% (RR 0.82, 95% CI 0.66-1.02, p = 0.08) and 19% (RR 0.81, 95% CI 0.69-0.95, p = 0.01) mortality risk reduction. At 1-2 years women had a 7% (RR 1.07, 95% CI 0.69-1.64, p = 0.77), and at 2-5 years a 25% increase in risk of mortality compared to men (RR 1.25, 95% CI 1.03-1.53, p = 0.03). Women were increasingly under represented (23.2%) over time, comprising 29% (30-days) to 16% (10 years) of the pooled population.
CONCLUSION
Trials with sex-specific stratification are required to ensure appropriate treatment options for coronary revascularization.
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Affiliation(s)
- S Matthews
- National Heart Foundation of Australia, Melbounre, Australia
| | - A O"neil
- Deakin University, Melbourne, Australia
| | - J Sanders
- St Bartholomew"s Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - A Buttery
- National Heart Foundation of Australia, Melbounre, Australia
| | - S Maraosco
- The Alfred Hospital, Melbourne, Australia
| | | | - G Martorella
- Florida State University, Tallahasse, United States of America
| | - N Keenan
- St James Hospital, Dublin, Ireland
| | - A Ganes
- Barwon Health, Geelong, Australia
| | - R Wynne
- Western Sydney Local Health District, Sydney, Australia
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14
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Atkins B, Matthews S, Walton N, Mitchell J, Battaglia T, Muir T, Jennings GLR, Buttery AK. Development and uptake of the National Heart Foundation of Australia Smart Heart Guideline App. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Many organisations have developed Smartphone mobile applications (apps) to improve access and uptake of clinical guidelines, including the European Society of Cardiology and the American Heart Foundation. The National Heart Foundation of Australia publish clinical guidelines in collaboration with the Cardiac Society of Australia and New Zealand. We aimed to develop an app for three national guidelines: 1) the Australian clinical guidelines for the prevention and detection of atrial fibrillation 2018; 2) the Australian clinical guidelines for the detection and management of heart failure in Australia 2018; and 3) the Australian clinical guidelines for the management of acute coronary syndromes 2016.
Purpose
To develop a mobile app for Australian health professionals to improve access and uptake of national cardiac clinical guidelines.
Methods
A national health professional mobile app online survey was developed and distributed in 2017. Survey items included the frequency of searching for information about the prevention or management of cardiovascular disease, the methods of searching, and the likelihood of using an Australian-specific mobile app to access clinical guidelines. Following analysis of survey responses, a software developer was contracted to develop the app, which included user-testing. The Smart Heart Guidelines App was registered with the regulatory body in Australia, the Therapeutic Goods Administration, and made freely available from October 2019 on iOS and Android operating systems. The app was promoted using electronic direct mail, social media techniques (Twitter and LinkedIn), on our organisation's website and via printed flyers and materials at regional and national event stands at conferences. Data from the Apple App Store was analysed between 1 October 2019 – 1 October 2020 to evaluate app use.
Results
The health professional survey (respondents n=504; nurses 39%, allied health professionals 26%; GP/cardiologist 9%; researcher 8%; other 18%) showed most (n=447; 89%) reported accessing the Heart Foundation's resources electronically. The majority (n=355; 70%) reported they would be likely to use an Australian-specific app. Data from the Apple App Store indicated over 30,300 impressions (the number of times the Smart Heart App appeared in an App Store search) during the first year the app was available. This resulted in approximately 4,400 app downloads, with consistent “search-to-download rates” throughout the year (monthly average rate 22%). Of the downloads, 3,200 (82%) were a direct result of searching for the Smart Heart App, indicating promotional activities were effective.
Conclusion
Development of the Smart Heart Guideline App in Australia was indicated by health professionals to improve access to national cardiac clinical guidelines. Consistent app downloads and use during the first-year support further research, development, promotion, and evaluation of the app.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): The National Heart Foundation of Australia
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Affiliation(s)
- B Atkins
- The National Heart Foundation of Australia, Melbourne, Australia
| | - S Matthews
- The National Heart Foundation of Australia, Melbourne, Australia
| | - N Walton
- The National Heart Foundation of Australia, Melbourne, Australia
| | - J Mitchell
- The National Heart Foundation of Australia, Melbourne, Australia
| | - T Battaglia
- The National Heart Foundation of Australia, Melbourne, Australia
| | - T Muir
- The National Heart Foundation of Australia, Melbourne, Australia
| | - G L R Jennings
- The National Heart Foundation of Australia, Melbourne, Australia
| | - A K Buttery
- The National Heart Foundation of Australia, Melbourne, Australia
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15
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Dawson C, Capewell R, Ellis S, Matthews S, Adamson S, Wood M, Fitch L, Reid K, Shaw M, Wheeler J, Pracy P, Nankivell P, Sharma N. Dysphagia presentation and management following COVID-19: an acute care tertiary centre experience. J Laryngol Otol 2020; 134:1-6. [PMID: 33168109 PMCID: PMC7683822 DOI: 10.1017/s0022215120002443] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES As the pathophysiology of COVID-19 emerges, this paper describes dysphagia as a sequela of the disease, including its diagnosis and management, hypothesised causes, symptomatology in relation to viral progression, and concurrent variables such as intubation, tracheostomy and delirium, at a tertiary UK hospital. RESULTS During the first wave of the COVID-19 pandemic, 208 out of 736 patients (28.9 per cent) admitted to our institution with SARS-CoV-2 were referred for swallow assessment. Of the 208 patients, 102 were admitted to the intensive treatment unit for mechanical ventilation support, of which 82 were tracheostomised. The majority of patients regained near normal swallow function prior to discharge, regardless of intubation duration or tracheostomy status. CONCLUSION Dysphagia is prevalent in patients admitted either to the intensive treatment unit or the ward with COVID-19 related respiratory issues. This paper describes the crucial role of intensive swallow rehabilitation to manage dysphagia associated with this disease, including therapeutic respiratory weaning for those with a tracheostomy.
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Affiliation(s)
- C Dawson
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - R Capewell
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - S Ellis
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - S Matthews
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - S Adamson
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - M Wood
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - L Fitch
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - K Reid
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - M Shaw
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - J Wheeler
- Department of Speech and Language Therapy, Queen Elizabeth Hospital, Birmingham, UK
| | - P Pracy
- Department of Otolaryngology, Queen Elizabeth Hospital, Birmingham, UK
| | - P Nankivell
- Department of Otolaryngology, Queen Elizabeth Hospital, Birmingham, UK
- Institute of Cancer and Genomic Sciences, University of Birmingham, UK
| | - N Sharma
- Department of Otolaryngology, Queen Elizabeth Hospital, Birmingham, UK
- Institute of Cancer and Genomic Sciences, University of Birmingham, UK
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16
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Nisbet H, Caulfield L, Matthews S. PO-1924: Radiotherapy late effects: sexual care after radiotherapy - a rtt led sexual care clinic. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01941-1] [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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17
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Adnan HS, Matthews S, Hackl M, Das PP, Manaswini M, Gadamsetti S, Filali M, Owoyele B, Santuber J, Edelman J. Human centered AI design for clinical monitoring and data management. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
In clinical settings, significant resources are spent on data collection and monitoring patients' health parameters to improve decision-making and provide better care. With increased digitization, the healthcare sector is shifting towards implementing digital technologies for data management and in administration. New technologies offer better treatment opportunities and streamline clinical workflow, but the complexity can cause ineffectiveness, frustration, and errors. To address this, we believe digital solutions alone are not sufficient. Therefore, we take a human-centred design approach for AI development, and apply systems engineering methods to identify system leverage points. We demonstrate how automation enables monitoring clinical parameters, using existing non-intrusive sensor technology, resulting in more resources toward patient care. Furthermore, we provide a framework on digitization of clinical data for integration with data management.
Methods
Activities of Daily Living (ADLs) are essential parameters, necessary for evaluating patients in mental health wards. Ideally logging the parameters should take place at hourly intervals; however, time constraints and lack of resources restrict the nursing staff to consolidating the overall impression during the day, relying on what they recall. Using design methods, sensors (e.g. infrared, proximity, pressure) are used to automate the acquisition of data for machine learning that correspond to the ADLs, considering privacy and other medical requirements.
Results
We present a concept of a room with sensors that can be deployed in clinical settings. Sensor data log ADLs, and provide machine learning data. A theoretical framework demonstrates how collected data can be used in electronic/medical health records.
Conclusions
Data acquisition of the ADLs with automation enable variable specificity and sensitivity on-demand. It further facilitates interoperability and provides data for machine learning.
Key messages
Our research demonstrates automated data acquisition techniques for clinical monitoring. Human centered AI design approach enables on-demand analysis of ADLs for mental health treatment.
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Affiliation(s)
- H S Adnan
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - S Matthews
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - M Hackl
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - P P Das
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - M Manaswini
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - S Gadamsetti
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - M Filali
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - B Owoyele
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - J Santuber
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
| | - J Edelman
- Digital Health Center, Hasso Plattner Institute, Potsdam, Germany
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18
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Sinha S, Swift AJ, Kamil MA, Matthews S, Bull MJ, Fisher P, De Fonseka D, Saha S, Edwards JG, Johns CS. The role of imaging in malignant pleural mesothelioma: an update after the 2018 BTS guidelines. Clin Radiol 2020; 75:423-432. [PMID: 32081346 DOI: 10.1016/j.crad.2019.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 12/04/2019] [Indexed: 02/07/2023]
Abstract
Malignant pleural mesothelioma (MPM) is a primary malignancy of the pleura and is associated with a poor outcome. The symptoms and signs of malignant mesothelioma present late in the natural history of the disease and are non-specific, making the diagnosis challenging and imaging key. In 2018, the British Thoracic Society (BTS) updated the guideline on diagnosis, staging, and follow-up of patients with MPM. These recommendations are discussed in this review of the current literature on imaging of MPM. It is estimated MPM will continue to cause serious morbidity and mortality in the UK late into the 21st century, and internationally, people continue to be exposed to asbestos. We aim to update the reader on current and future imaging strategies, which could aid early diagnosis of pleural malignancy and provide an update on staging and assessment of tumour response.
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Affiliation(s)
- S Sinha
- Department of Radiology, Sheffield Teaching Hospitals, Sheffield, UK
| | - A J Swift
- Department of Radiology, Sheffield Teaching Hospitals, Sheffield, UK; Academic Unit of Radiology, The University of Sheffield, Sheffield, UK
| | - M A Kamil
- Department of Radiology, Sheffield Teaching Hospitals, Sheffield, UK
| | - S Matthews
- Department of Radiology, Sheffield Teaching Hospitals, Sheffield, UK
| | - M J Bull
- Department of Radiology, Sheffield Teaching Hospitals, Sheffield, UK
| | - P Fisher
- Department of Oncology, Sheffield Teaching Hospitals, Sheffield, UK
| | - D De Fonseka
- Department of Respiratory Medicine, Sheffield Teaching Hospitals, Sheffield, UK
| | - S Saha
- Department of Respiratory Medicine, Sheffield Teaching Hospitals, Sheffield, UK
| | - J G Edwards
- Department of Thoracic Surgery, Sheffield Teaching Hospitals, Sheffield, UK
| | - C S Johns
- Department of Radiology, Sheffield Teaching Hospitals, Sheffield, UK.
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19
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Marin M, Laverack G, Matthews S, Powell AA. Germination characteristics of Rhinanthus minor influence field emergence, competitiveness and potential use in restoration projects. Plant Biol (Stuttg) 2019; 21:470-479. [PMID: 29427342 DOI: 10.1111/plb.12707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 02/04/2018] [Indexed: 06/08/2023]
Abstract
The facultative root hemi-parasite Rhinanthus minor is often used in grassland habitat restoration projects to regulate ecosystem structure and function. Its impact on community productivity and diversity as a function of resource supply, sward composition and management has been widely investigated. However, there is a lack of information about the possible influence of seed quality on the efficacy of the hemi-parasite. Ten seed lots from commercial sources were sown in the field and their germination characteristics investigated in the laboratory. Seeds from four lots were also germinated and sown in pots alongside plants of two host species, Lotus corniculatus and Holcus lanatus. Plant establishment, height and flowering density were evaluated for the hemi-parasite, while plant biomass was measured for both R. minor and its host. Two aspects of seed quality influenced the field emergence of seed lots of R. minor, the radicle emergence (%) and the length of the lag period from the beginning of imbibition to germination (mean germination time), which indicates seed vigour. A longer lag period (lower vigour) was associated with higher levels of seedling mortality and lower plant vigour, in terms of plant height and biomass accumulation and was also reflected in the parasitic impact of the seed lots. Seed quality, specifically germination and vigour, can influence the establishment, survival, subsequent plant productivity and parasitic impact of R. minor in vegetation restoration projects. Seed quality is discussed as a key factor to consider when predicting the impact of the hemi-parasite on community productivity and diversity.
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Affiliation(s)
- M Marin
- Scotia Seeds, Brechin, UK
- Dipartimento di Scienze della Terra e dell'Ambiente, Università di Pavia, Pavia, Italy
| | | | - S Matthews
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
| | - A A Powell
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
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20
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Quyn N, Kaneshamoorthy M, Jegard J, Matthews S, Bean E, Lau S, Babalola T, Bafadhel L. 21DOES A COMPREHENSIVE GERIATRIC ASSESSMENT (CGA) WARD-ROUND PROFORMA WORK IN A BUSY DISTRICT GENERAL HOSPITAL (DGH)? Age Ageing 2019. [DOI: 10.1093/ageing/afy211.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Nayar G, Darley ESR, Hammond F, Matthews S, Turton J, Wach R. Does screening neonates in the neonatal intensive care unit for Pseudomonas aeruginosa colonization help prevent infection? J Hosp Infect 2018; 100:54-59. [PMID: 29964100 DOI: 10.1016/j.jhin.2018.06.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/22/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Pseudomonas aeruginosa (PA) is a Gram-negative environmental organism that can cause severe infection in immunosuppressed patients, including preterm neonates. In recent years, it has become common practice to screen neonates for PA colonization. AIM To assess the value of screening neonates for PA in (1) predicting the risk of developing severe PA infection and (2) directing infection control practice. METHODS Between August 2012 and September 2015, babies admitted to the neonatal intensive care unit (NICU) at North Bristol NHS Trust were screened routinely for PA colonization on admission and weekly thereafter. Data were also collected on babies who developed PA infection. Environmental samples from the NICU were tested for the presence of PA. Variable number tandem repeat (VNTR) typing was performed on all strains of PA from babies and the environment. FINDINGS No babies with positive screens subsequently developed PA infection. There was no VNTR strain evidence supporting cross-infection from the environment or other babies. CONCLUSION Screening neonates for PA did not identify babies who subsequently developed PA infection. Following cessation of screening in September 2015, there was no increase in the number of babies identified with PA infection.
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Affiliation(s)
- G Nayar
- Severn Pathology Infection Sciences, North Bristol NHS Trust, Bristol, UK.
| | - E S R Darley
- Severn Pathology Infection Sciences, North Bristol NHS Trust, Bristol, UK
| | - F Hammond
- Infection Prevention and Control, North Bristol NHS Trust, Bristol, UK
| | - S Matthews
- Infection Prevention and Control, North Bristol NHS Trust, Bristol, UK
| | - J Turton
- Antimicrobial Resistance and Healthcare Associated Infections Reference Unit, Public Health England, Colindale, London, UK
| | - R Wach
- Neonatal Intensive Care, North Bristol NHS Trust, Bristol, UK
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22
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Venkataraman D, Erlewyn-Lajeunesse M, Kurukulaaratchy RJ, Potter S, Roberts G, Matthews S, Arshad SH. Prevalence and longitudinal trends of food allergy during childhood and adolescence: Results of the Isle of Wight Birth Cohort study. Clin Exp Allergy 2018; 48:394-402. [PMID: 29315919 DOI: 10.1111/cea.13088] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 12/06/2017] [Accepted: 12/15/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND The prevalence and time trends of food allergy change during childhood depending on the age of the child and the type of food. OBJECTIVE To study prevalence and longitudinal trends in food allergy from birth to 18 years in an unselected birth cohort in the Isle of Wight. METHOD Information on food allergy was collected at ages 1, 2, 4, 10 and 18 years from the Isle of Wight Birth Cohort (n = 1456). Skin prick testing (SPT) was performed at the age of 1 and 2 years in symptomatic children. At 4, 10 and 18 years of age, participants were tested to a panel of food and aeroallergens. Food allergy was diagnosed based on the criteria: symptoms suggestive of a typical IgE-mediated reaction and reaction <4 hours following exposure to a known food allergen. McNemar's test was used to determine significance of changes in prevalence over time. RESULTS The prevalence of food allergy remained relatively constant in early childhood (5.3%, 4.4% and 5.0% at 1, 2 and 4 years, respectively), with significant decline at 10 years (2.3%, P < .001 vs 4 years) followed by significant rise at 18 years (4%, P = .02 vs 10 years). Cow's milk (1.6%-3.5%) and egg (1.1%-1.4%) were the most common allergens in the first 10 years with peanut (1%) and tree nuts (0.5%) becoming more prevalent beyond 10 years. Fruit and wheat allergy were less common at 10 years, and shellfish and kiwi emerged during adolescence. The prevalence of food allergy plus positive SPT was 1.3%, 0.8%, 0.8%, 0.9% and 2.2% at 1, 2, 4, 10 and 18 years, respectively. CONCLUSION Food allergy is highly prevalent in infancy with partial resolution during late childhood. However, a number of children acquire new food allergy during adolescence resulting in a relatively higher prevalence at 18 years.
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Affiliation(s)
- D Venkataraman
- University Hospitals Southampton NHS Foundation Trust, Southampton, UK
| | - M Erlewyn-Lajeunesse
- University Hospitals Southampton NHS Foundation Trust, Southampton, UK.,Clinical and Experimental Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - R J Kurukulaaratchy
- University Hospitals Southampton NHS Foundation Trust, Southampton, UK.,Clinical and Experimental Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK.,The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK
| | - S Potter
- The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK
| | - G Roberts
- University Hospitals Southampton NHS Foundation Trust, Southampton, UK.,Clinical and Experimental Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK.,The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK
| | - S Matthews
- The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK
| | - S H Arshad
- University Hospitals Southampton NHS Foundation Trust, Southampton, UK.,Clinical and Experimental Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK.,The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK
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23
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Darley E, Vasant J, Leeming J, Hammond F, Matthews S, Albur M, Reynolds R. Impact of moving to a new hospital build, with a high proportion of single rooms, on healthcare-associated infections and outbreaks. J Hosp Infect 2018; 98:191-193. [DOI: 10.1016/j.jhin.2017.06.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 06/21/2017] [Indexed: 12/01/2022]
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24
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Matthews S, Haseeb H, Patterson J, MacDonald B. Medical humanities in practice. Assoc Med J 2017. [DOI: 10.1136/bmj.j5114] [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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25
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Lai K, Matthews S, Wilmott J, Killingsworth M, Caixeiro N, Wykes J, Samakeh A, Forstner D, Niles N, Hong A, Lee C. High LC3C expression correlates with poor survival in oral cavity squamous cell carcinoma patients. Pathology 2017. [DOI: 10.1016/j.pathol.2016.09.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Ajab S, Begum S, Stanley H, Matthews S, Fisher P, Socci L, Deeley Y, Edwards J. 166: Searching for MARS-2: The North Trent Cancer Research Network Specialist Mesothelioma MDT screening experience. Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30216-7] [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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Rayes H, Raza A A, Williams A, Matthews S, Arshad SH. Specific IgE to recombinant protein (Ber e 1) for the diagnosis of Brazil nut allergy. Clin Exp Allergy 2016; 46:654-6. [PMID: 26684696 DOI: 10.1111/cea.12693] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H Rayes
- The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK.,Faculty of Medicine, Clinical and Experimental Sciences, University of Southampton, Southampton, UK
| | - A Raza A
- The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK
| | - A Williams
- Faculty of Medicine, Clinical and Experimental Sciences, University of Southampton, Southampton, UK
| | - S Matthews
- The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK
| | - S H Arshad
- The David Hide Asthma and Allergy Research Centre, Isle of Wight, UK.,Faculty of Medicine, Clinical and Experimental Sciences, University of Southampton, Southampton, UK.,NIHR Biomedical Research Unit, University Hospital Southampton, Southampton, UK
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Freeman LM, Lachaud MP, Matthews S, Rhodes L, Zollers B. Evaluation of Weight Loss Over Time in Cats with Chronic Kidney Disease. J Vet Intern Med 2016; 30:1661-1666. [PMID: 27527534 PMCID: PMC5032880 DOI: 10.1111/jvim.14561] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/23/2016] [Accepted: 07/14/2016] [Indexed: 11/28/2022] Open
Abstract
Background Thin body condition and weight loss are common in cats with chronic kidney disease (CKD). However, the time course and progression of weight loss before and after diagnosis have not been thoroughly evaluated. Hypothesis/Objectives To describe weight loss in cats with CKD before and after diagnosis and its relationship to survival. Animals A total of 569 cats (55.5% females and 44.5% males) with CKD from 6 US veterinary practices for which International Renal Interest Society (IRIS) stage, age, date of CKD diagnosis, and at least two body weight measurements were available. Methods Body weight measurements were analyzed by time windows and polynomial growth curve analysis. Survival analysis was performed by Kaplan–Meier curves and log‐rank tests. Results Median age at diagnosis was 14.9 years (range, 5.0–22.8 years). Cats were categorized at diagnosis as IRIS stage 1 (n = 34 [6%]), stage 2 (n = 345 [61%]), stage 3 (n = 141 [25%]), and stage 4 (n = 49 [9%]). Median body weight at diagnosis was 4.2 kg (range, 1.6–9.9 kg). Cats lost a median of 8.9% of body weight in the 12 months before diagnosis, but weight loss was already present 3 years before diagnosis and accelerated after diagnosis of CKD. Cats <4.2 kg at the time of diagnosis had significantly shorter survival time compared to cats ≥ 4.2 kg at diagnosis (P < .0001). Conclusions and Clinical Importance Weight loss can be detected in cats before diagnosis of CKD, accelerates after diagnosis, and is associated with shorter survival. Tracking body weight may help clinicians in earlier diagnosis of CKD.
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Affiliation(s)
- L M Freeman
- Cummings School of Veterinary Medicine at Tufts University, North Grafton, MA.
| | | | | | - L Rhodes
- Aratana Therapeutics, Inc., Kansas City, KS
| | - B Zollers
- Aratana Therapeutics, Inc., Kansas City, KS
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Brown DR, Sheppard CM, Burchell L, Matthews S, Wigneshweraraj S. The Xp10 Bacteriophage Protein P7 Inhibits Transcription by the Major and Major Variant Forms of the Host RNA Polymerase via a Common Mechanism. J Mol Biol 2016; 428:3911-3919. [PMID: 27515396 PMCID: PMC5053324 DOI: 10.1016/j.jmb.2016.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/02/2016] [Accepted: 08/03/2016] [Indexed: 01/24/2023]
Abstract
The σ factor is a functionally obligatory subunit of the bacterial transcription machinery, the RNA polymerase. Bacteriophage-encoded small proteins that either modulate or inhibit the bacterial RNAP to allow the temporal regulation of bacteriophage gene expression often target the activity of the major bacterial σ factor, σ70. Previously, we showed that during Xanthomonas oryzae phage Xp10 infection, the phage protein P7 inhibits the host RNAP by preventing the productive engagement with the promoter and simultaneously displaces the σ70 factor from the RNAP. In this study, we demonstrate that P7 also inhibits the productive engagement of the bacterial RNAP containing the major variant bacterial σ factor, σ54, with its cognate promoter. The results suggest for the first time that the major variant form of the host RNAP can also be targeted by bacteriophage-encoded transcription regulatory proteins. Since the major and major variant σ factor interacting surfaces in the RNAP substantially overlap, but different regions of σ70 and σ54 are used for binding to the RNAP, our results further underscore the importance of the σ–RNAP interface in bacterial RNAP function and regulation and potentially for intervention by antibacterials. Xp10 phage transcription regulator P7 inhibits transcription by RNAP containing σ54. P7 prevents the productive engagement of the σ54–RNAP with the promoter DNA. • P7 disrupts preformed σ54–RNAP-promoter complexes.
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Affiliation(s)
- D R Brown
- MRC Centre for Molecular Microbiology and Infection, Imperial College London, SW7 2AZ, UK.
| | - C M Sheppard
- MRC Centre for Molecular Microbiology and Infection, Imperial College London, SW7 2AZ, UK
| | - L Burchell
- MRC Centre for Molecular Microbiology and Infection, Imperial College London, SW7 2AZ, UK
| | - S Matthews
- MRC Centre for Molecular Microbiology and Infection, Imperial College London, SW7 2AZ, UK
| | - S Wigneshweraraj
- MRC Centre for Molecular Microbiology and Infection, Imperial College London, SW7 2AZ, UK.
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Alinari L, Gru A, Quinion C, Huang Y, Lozanski A, Lozanski G, Poston J, Venkataraman G, Oak E, Kreisel F, Park SI, Matthews S, Abramson JS, Iris Lim H, Martin P, Cohen JB, Evens A, Al-Mansour Z, Singavi A, Fenske TS, Blum KA. De novo CD5+ diffuse large B-cell lymphoma: Adverse outcomes with and without stem cell transplantation in a large, multicenter, rituximab treated cohort. Am J Hematol 2016; 91:395-9. [PMID: 26800311 DOI: 10.1002/ajh.24299] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/04/2016] [Accepted: 01/06/2016] [Indexed: 12/14/2022]
Abstract
De novo CD5+ diffuse large B-cell lymphomas (DLBCL) are a distinct subgroup of DLBCL with poor prognosis. However the role of rituximab-containing therapy and salvage stem cell transplantation in this patients' population remain to be defined. We retrospectively reviewed clinical features and outcomes of 102 patients with de novo CD5+ DLBCL treated with rituximab-containing therapy at nine different institutions. By Hans' criteria, 64 patients had activated B-cell (ABC) subtype, 24 germinal center B-cell (GCB) subtype, and 14 were not evaluated. No patients had a myc translocation. Eighty-three patients were treated with rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone (R-CHOP), 7 with rituximab, etoposide, cyclophosphamide, doxorubicin, vincristine, prednisone (R-EPOCH), and 6 with R-CHOP with methotrexate, 3 g/m(2) . The overall response rate to front-line therapy was 85%. The 3-year progression free survival (PFS) and overall survival (OS) for all patients were 40 and 65%, respectively. The 3-year PFS for ABC- and GCB-subtypes was 34 and 45%, respectively. The 3-year OS for ABC- and GCB-subtypes was 62 and 67%, respectively. The median time to second treatment failure was 3 months and 1 month for ABC- and GCB-subtypes, respectively. Twenty of 28 (71%) transplanted patients with autologous, allogeneic, or both, relapsed. This study confirms the poor prognosis of de novo CD5+ DLBCL in a large multi-center cohort despite initial rituximab-containing chemotherapy and suggests that stem cell transplantation fails to salvage the majority of these patients. Approaches to prevent recurrence and/or novel therapies for relapsed disease are needed for this subgroup of DLBCL patients.
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Affiliation(s)
- Lapo Alinari
- Division of Hematology, Department of Internal Medicine; The Ohio State University Wexner Medical Center; Columbus OH, USA
| | - Alejandro Gru
- Division of Hematopathology, Department of Pathology; The Ohio State University Wexner Medical Center; Columbus OH, USA
| | - Carl Quinion
- Division of Hematology, Department of Internal Medicine; The Ohio State University Wexner Medical Center; Columbus OH, USA
| | - Ying Huang
- Division of Hematology, Department of Internal Medicine; The Ohio State University Wexner Medical Center; Columbus OH, USA
| | - Arletta Lozanski
- Division of Hematology, Department of Internal Medicine; The Ohio State University Wexner Medical Center; Columbus OH, USA
| | - Gerard Lozanski
- Division of Hematopathology, Department of Pathology; The Ohio State University Wexner Medical Center; Columbus OH, USA
| | - Jacqueline Poston
- Division of Hematology; Department of Internal Medicine, University of Chicago; Chicago IL, USA
| | - Girish Venkataraman
- Division of Hematopathology, Department of Pathology; University of Chicago, Chicago; IL USA
| | - Eunhye Oak
- Division of Hematology, Department of Internal Medicine, Washington University School of Medicine; St Louis, MO, USA
| | - Friederike Kreisel
- Division of Hematopathology, Department of Pathology, Washington University School of Medicine; St Louis, MO USA
| | - Steven I. Park
- Division of Hematology, Department of Internal Medicine, University of North Carolina, Lineberger Comprehensive Cancer Center; Chapel Hill NC, USA
| | - Stephanie Matthews
- Division of Hematology, Department of Internal Medicine, University of North Carolina, Lineberger Comprehensive Cancer Center; Chapel Hill NC, USA
| | - Jeremy S. Abramson
- Division of Hematology, Department of Internal Medicine, Center for Lymphoma, Massachusetts General Hospital Cancer Center, Boston Harvard Medical School; Boston MA, USA
| | - Hana Iris Lim
- Division of Hematology, Department of Internal Medicine, Weill Cornell Medical College; New York, NY, USA
| | - Peter Martin
- Division of Hematology, Department of Internal Medicine, Weill Cornell Medical College; New York, NY, USA
| | - Jonathon B. Cohen
- Division of Hematology, Department of Internal Medicine, Winship Cancer Institute of Emory University; Atlanta GA, USA
| | - Andrew Evens
- Division of Hematology, Department of Internal Medicine, Tufts Medical Center, Tufts University School of Medicine; Boston MA, USA
| | - Zeina Al-Mansour
- Division of Hematology, Department of Internal Medicine, University of Massachusetts Medical School; Worcester, MA USA
| | - Arun Singavi
- Division of Hematology, Department of Internal Medicine, Medical College of Wisconsin; Milwaukee WI, USA
| | - Timothy S. Fenske
- Division of Hematology, Department of Internal Medicine, Medical College of Wisconsin; Milwaukee WI, USA
| | - Kristie A. Blum
- Division of Hematology, Department of Internal Medicine; The Ohio State University Wexner Medical Center; Columbus OH, USA
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Abdulla M, Fisher P, Matthews S, Cafferty C, Hill J, Saha S. 118: Has our lower local histological confirmation rate affected patient care? Lung Cancer 2015. [DOI: 10.1016/s0169-5002(15)50112-8] [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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Zaitout Z, Zia A, Senasi R, Matthews S. P49 Incidental pulmonary nodules; are we doing too many follow up scans? Service review and value of PET-CT imaging. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Crowther HJ, Lindeman R, Ho PJ, Allen E, Waite C, Matthews S, Jobburn K, Teo J, Day S, Seldon M, Rosenfeld D, Kerridge I. Health of adults living with a clinically significant haemoglobinopathy in New South Wales, Australia. Intern Med J 2013; 43:1103-10. [PMID: 23834206 DOI: 10.1111/imj.12231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 07/03/2013] [Indexed: 01/19/2023]
Abstract
AIM To comprehensively review the health needs of patients living with clinically significant haemoglobinopathies (thalassaemia and sickle-cell disease (SCD)) in New South Wales, Australia. METHODS A survey-based health needs assessment was undertaken in outpatients cared for at five tertiary institutions in metropolitan and regional centres. Sixty-three of 121 adults (approximately 80-90% of adult patients with transfusion-requiring haemoglobinopathies in New South Wales) completed an in-house and commercial health-related quality assessment survey (SF-36v2). RESULTS Subjects came from more than eight world regions, with those with SCD being more likely to be born outside of Australia than subjects with thalassaemia (P < 0.001, likelihood ratio 20.64) as well as more likely to have been refugees (26% vs 2%). The population contained socially disadvantaged subjects with 13 subjects (20.6%) having incomes below the Australian poverty line. Complications of thalassaemia were comparable to previous international reports although our subjects had a high rate of secondary amenorrhea (>12 months = 27%) and surgical splenectomy (55.6%). Use of hydroxyurea in SCD was less than expected with only 46.6% of subjects having prior use. Lack of universal access to magnetic resonance imaging-guided chelation (international best practice) was evident, although 65.5% had been able to access magnetic resonance imaging through clinical trial, or self-funding. CONCLUSIONS Patients with SCD and thalassaemia experience considerable morbidity and mortality and require complex, multidisciplinary care. This study revealed both variance from international best practice and between specialist units. The results of this research may provide the impetus for the development of clinical and research networks to enable the uniform delivery of health services benchmarked against international standards.
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Affiliation(s)
- H J Crowther
- Westmead Hospital, Sydney , New South Wales, Australia; Centre for Values, Ethics and Law in Medicine, University of Sydney, Sydney , New South Wales, Australia; University of Western Sydney, Sydney , New South Wales, Australia
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Fernando KA, Matthews S, Jaleel H, Salimee S. P6.005 Multidisciplinary Approach to Managing a Syphilis Outbreak in Southend-On-Sea, Essex UK. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.1159] [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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Roberts G, Zhang H, Karmaus W, Raza A, Scott M, Matthews S, Kurukulaaratchy RJ, Dean T, Arshad SH. Trends in cutaneous sensitization in the first 18 years of life: results from the 1989 Isle of Wight birth cohort study. Clin Exp Allergy 2013; 42:1501-9. [PMID: 22994347 DOI: 10.1111/j.1365-2222.2012.04074.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Skin prick testing (SPT) is fundamental to the practice of clinical allergy identifying relevant allergens and predicting the clinical expression of disease. There are only limited data on the natural history of SPT results over childhood and adolescence. OBJECTIVE We aimed to describe the natural history of SPT and patterns of sensitization over childhood and adolescence. METHODS The 1989 Isle of Wight birth cohort (1456 participants) was followed up at 1, 2, 4, 10 and 18 years. SPT was undertaken from 4 years. RESULTS SPT was performed on 980 (80%), 1036 (75%) and 853 (65%) of participants at 4, 10 and 18 years. The prevalence of sensitization to any allergen at these time-points was 19.7%, 26.9% and 41.3% respectively. At each time-point, boys were significantly more likely to be sensitized (P < 0.016) and sensitization significantly increased over childhood and adolescence (average annual increase of 7%). Some children outgrew their sensitization. The rate of sensitization to most individual allergens increased over childhood and adolescence. A configural frequency analysis showed that whether an individual was sensitizated was relatively fixed over childhood and adolescence. Cluster analysis at 4 years demonstrated four major groups of individuals with similar co-sensitization to specific allergens. Children who were sensitized at age 4 years generally went onto become sensitized to additional allergens at 10 and 18 years. CONCLUSIONS AND CLINICAL RELEVANCE Allergic sensitization continues to increase over childhood into adolescence although the majority of children who were not sensitized at 4 years remain non-sensitized throughout childhood and adolescence. The presence of sensitization at 4 years predicted later sensitization to additional allergens.
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Affiliation(s)
- G Roberts
- The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Newport, UK.
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Chopra A, Ford A, De Noronha R, Matthews S. Incidental findings on positron emission tomography/CT scans performed in the investigation of lung cancer. Br J Radiol 2012; 85:e229-37. [PMID: 22745208 DOI: 10.1259/bjr/60606623] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES This study aimed to clarify the number and cause of incidental findings detected on positron emission tomography (PET)/CT in patients undergoing investigation for presumed lung cancer. METHODS The scan reports from PET/CT studies performed for patients with lung cancer under National Institute for Clinical Evidence guidelines from January 2006 until March 2008 were retrospectively reviewed. Incidental findings were followed up by a combination of case note review, clinician feedback, colonoscopy database, histopathology and follow-up imaging. RESULTS 818 patients were investigated for lung cancer in the study period. 197 incidental findings were found in 175 (21%) patients. The subsequent investigation of 108 lesions confirmed a pathological correlation in 71 (66%) cases. A second primary malignancy was found in 10 patients within the bowel (6), breast (2), tongue (1) and stomach (1). A pre-malignant lesion was confirmed in 25 cases (24 large bowel tubulovillous adenomas and a follicular thyroid lesion). A further 41 (5%) benign abnormalities were detected at multiple sites; the thyroid gland was the single most frequently affected site (14 abnormalities). There were 36 (4.4%) false-positive reported findings, including 17 in the region of the pharynx and larynx and 12 within the large bowel. CONCLUSIONS Overall, 9.2% of patients with suspected or known lung cancer having PET/CT had a confirmed incidental finding. A malignant or pre-malignant lesion was found in 1.2% and 3.0%, respectively. These were mostly located within the gastrointestinal tract. The majority of false-positive incidental findings were located in the larynx and pharynx. Uptake in these regions is unlikely to be significant in the absence of a CT morphological correlation.
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Affiliation(s)
- A Chopra
- Northern General Hospital, Sheffield Teaching Hospital NHS Trust, Sheffield, UK.
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Matthews S, Jelinek H, Vafaeiafraz S, McLachlan CS. Heart rate stability and decreased parasympathetic heart rate variability in healthy young adults during perceived stress. Int J Cardiol 2012; 156:337-8. [PMID: 22370369 DOI: 10.1016/j.ijcard.2012.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 01/30/2012] [Accepted: 02/05/2012] [Indexed: 11/24/2022]
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Farquharson AL, Chopra A, Ford A, Matthews S, Amin SN, De Noronha R. Incidental focal colonic lesions found on (18)Fluorodeoxyglucose positron emission tomography/computed tomography scan: further support for a national guideline on definitive management. Colorectal Dis 2012; 14:e56-63. [PMID: 21831171 DOI: 10.1111/j.1463-1318.2011.02760.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIM (18)Fluorodeoxyglucose ((18)FDG) positron emission tomography/computed tomography (PET/CT) is an established part of staging in a wide variety of malignancies. Incidental abnormal uptake of (18)FDG of unknown significance is frequently encountered. Therefore, we investigated patients with abnormal colonic uptake of (18)FDG, determined by PET/CT images, using colonoscopy. METHOD The radiology reports of all patients referred to a tertiary referral centre for a PET/CT scan were reviewed retrospectively. Patients with abnormal colonic uptake of (18)FDG were identified and the PET/CT findings were correlated with colonoscopic findings. RESULTS Of 555 consecutive patients identified over a 26-month period, 53 had abnormal colonic uptake of (18)FDG, as determined by PET/CT images. Twenty-nine were not investigated following discussion in a specialist multidisciplinary (MDT) meeting, according to local protocol. Twenty out of 24 patients investigated by endoscopy had a colonic lesion correlating to the site identified on the PET/CT image: 16 patients had tubulovillous adenomas (nine of which were > 10 mm), two had invasive adenocarcinomas, two had diverticular disease and one had collagenous colitis; no colonic lesion was detected in three. These findings were incidental and not related to the primary diagnosis for which the scan was being performed. Accordingly, a positive predictive value of 83% is associated with the finding of abnormal uptake of (18)FDG on PET/CT images. CONCLUSION Incidental abnormal colonic uptake of (18)FDG, determined by a PET/CT scan requires definitive colonic investigation in patients suitable for further treatment because significant colonic pathology is frequently identified. The benefit of this approach should be discussed in specialist MDT meetings and tailored to each patient; however, national guidelines for management are required.
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Affiliation(s)
- A L Farquharson
- Colorectal Surgical Unit, Northern General Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, South Yorkshire, UK.
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Abstract
OBJECTIVE The aim of this study was to assess the effect on neonatal thyroid function of iodinated contrast media administered for CT pulmonary angiography (CTPA) in babies whose mothers were investigated for suspected pulmonary embolism during pregnancy. METHODS Retrospective review of 115 pregnant patients investigated for suspected pulmonary embolism. The patient cohort consisted of two groups: Group A consisted of 73 pregnant females who received iodinated contrast agent for CTPA, and Group B (control group) consisted of 42 pregnant females who were investigated by perfusion imaging only. The results of the neonatal thyroid function tests for the babies of the mothers in Groups A and B were compared. RESULTS All of the neonatal thyroid function tests for both groups were normal with no statistical difference between the two groups. CONCLUSION No adverse effect on thyroid function was demonstrated in neonates exposed to in utero iodinated contrast media. However, as our study involves a small patient group, the results should be interpreted with caution.
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Affiliation(s)
- S Rajaram
- Department of Radiology, Sheffield Teaching Hospital Trust, Sheffield, UK.
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Abstract
Diagnostic bacteriology has changed little over the past 50 years. Those changes that have occurred have been gradual but not fundamental. KIESTRA Lab Automation is a company specializing in total laboratory automation (TLA). Their methodology incorporates plate labelling and delivery, inoculation and spreading, incubation and digital image analysis. This has led to a paradigm shift in processing since decisions are made from images on a computer screen rather than examination of the actual plates. The result is the development of a skill mix based on the requirements of the service. This allows for the development of a lean and highly efficient laboratory.
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Affiliation(s)
- S Matthews
- Clarendon Lodge, New Road, Mockbeggar, Ringwood, Hampshire, BH24, 3NJ, UK.
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Kurukulaaratchy RJ, Karmaus W, Raza A, Matthews S, Roberts G, Arshad SH. The influence of gender and atopy on the natural history of rhinitis in the first 18 years of life. Clin Exp Allergy 2011; 41:851-9. [PMID: 21561494 DOI: 10.1111/j.1365-2222.2011.03765.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Longitudinal studies of the natural history of childhood and adolescent rhinitis are lacking. OBJECTIVES To investigate the natural history of rhinitis up to 18 years of age, and how that is influenced by gender and atopy. METHODS The Isle of Wight birth cohort was recruited in 1989 (n=1456). Questionnaire data on nasal symptoms (rhinitis) were collected at 1, 2, 4, 10 and 18 years of age. To define atopy, skin prick tests were conducted at 4, 10 and 18 years. The 12-month period prevalence plus positive and negative transitions (defined as change in disease status in two consecutive study assessments) were stratified by gender and atopic status. RESULTS Overall rhinitis prevalence increased from 5.4% at 4 years to 35.8% at 18 years (P<0.001), without gender difference. Atopic rhinitis prevalence increased steadily from 3.4% at 4 years to 27.3% at 18 years (P<0.001), was commoner in boys at 18 years (P=0.02) and associated with greater positive transition in boys from 10 to 18 years (P=0.01). Prevalence of non-atopic rhinitis also increased from 4 to 18 years (P=0.003) and was greater in girls at 18 years (P<0.001) reflecting higher female positive transition from 10 to 18 years (P<0.001). Non-atopic rhinitis negative transition (remission) was highest in early life and reduced in later childhood/adolescence. CONCLUSION Atopic rhinitis becomes increasingly common as children grow into adolescents, with stronger associations to male gender. Non-atopic rhinitis shows a female predominance at 18 years as girls 'grow into' it more during adolescence. Our findings suggest differential gender effects on the increasing prevalence of both atopic and non-atopic rhinitis in adolescence. CLINICAL RELEVANCE A better understanding of how gender and atopic status influence rhinitis during adolescence emerges from this study. Application of such knowledge could help to improve clinical recognition, judge prognosis and ultimately improve management of this common condition.
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Affiliation(s)
- R J Kurukulaaratchy
- The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Newport, Isle of Wight, UK
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Abstract
OBJECTIVES The simplified Wells pre-test probability scoring algorithm for pre-investigation evaluation of pulmonary emboli (PE) is a commonly utilised and validated assessment tool. We sought to identify whether use of a dichotomised scoring system altered the overall negative predictive value (NPV) in patients referred for CT pulmonary angiography (CTPA) assessment of suspected PE. METHODS Prospective data collection of all patients referred for CTPA evaluation of suspected acute PE during a 3 year period was carried out. Pre-test risk stratification was performed according to simplified Wells criteria in conjunction with plasma d-Dimer (Bio-Pool and IL test) estimation. Retrospective dichotomisation was also performed. RESULTS 2531 patients were investigated for suspected acute PE; acute thromboemboli were confirmed in 22.7%. The overall NPV for negative d-Dimer and intermediate pre-test probability (PTP) was 98.9% [95% confidence interval (CI) 96.3-99.7%]; with retrospective dichotomisation, the NPV for the PE unlikely group was 99.0% (95% CI 94.8-99.8%). Implementation of dichotomised scoring, excluding PE unlikely with negative d-Dimer cases from further imaging, would have yielded a 4% reduction in CTPA referral pathway imaging at our institution. CONCLUSION We demonstrate no significant difference between exclusion in the intermediate subgroup and the retrospectively dichotomised PE unlikely group and demonstrate the high negative predictive power of the Bio-Pool and IL tests in conjunction with the Wells PTP tool. Prior to implementation of new guidelines for exclusion of patients with suspected PE from further imaging, hospitals should audit their own practice and validate the d-Dimer assay utilised at their institution.
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Affiliation(s)
- D J Warren
- Radiology Department, Royal Hallamshire Hospital, Sheffield NHS Teaching Hospitals Trust, Sheffield, UK.
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Mitchell SJ, Hilmer SN, Murnion BP, Matthews S. Hepatotoxicity of therapeutic short-course paracetamol in hospital inpatients: impact of ageing and frailty. J Clin Pharm Ther 2011; 36:327-35. [PMID: 21545612 DOI: 10.1111/j.1365-2710.2010.01193.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Paracetamol, a commonly used simple analgesic, can be fatal in overdose. Case reports suggest liver damage may occur at therapeutic doses. In older and particularly frail patients, dose reduction of therapeutic paracetamol is recommended due to concerns of an increased risk of hepatotoxicity. AIMS This study aimed to investigate the effects of ageing and frailty on the safety of paracetamol in hospital inpatients commenced on short courses of the drug. METHODS An observational cohort study of young (18-55 years, n = 19), older (≥ 70 years) fit (n = 24) and older frail (n = 28) hospital inpatients. Treatment group participants commenced regular paracetamol (3-4 g/day) during their hospital admission, whereas the control group was not exposed to paracetamol. In both groups, plasma alanine aminotransferase (ALT) was measured at baseline and day 5, and risk factors for raised ALT were recorded. A random serum paracetamol concentration was measured at day 5 in the treatment group. RESULTS No older frail treatment participants had an abnormal day 5 ALT. Odds ratios for having a day 5 ALT above the upper limit of normal (ULN) with paracetamol use, compared with unexposed controls, were 3·7 [95% confidence intervals (CI): 0·32, 41·59] for older not frail participants and 2·5 (95% CI: 0·34, 18·3) for younger participants. Decreasing frailty score independently predicted a day 5 ALT above the ULN (P < 0·05). Day 5 serum paracetamol concentrations were highest in older frail participants (P < 0·005). CONCLUSION Higher paracetamol concentrations observed in frail older patients after 5 days of therapeutic paracetamol do not necessarily indicate an increased risk of hepatotoxicity.
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Affiliation(s)
- S J Mitchell
- Departments of Aged Care and Clinical Pharmacology, Royal North Shore Hospital, St Leonards, NSW, Australia
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Abstract
Recognition of relatives is important for dispersing animals to avoid inbreeding and possibly for developing cooperative, reciprocal relationships between individuals after dispersal. We demonstrate under controlled captive conditions that cotton-top tamarins (Saguinus oedipus) have a long-term memory for long calls of relatives from which they had been separated for periods ranging from 4 to 55 months. Tamarins responded with lower levels of arousal behavior to playbacks of long calls from current mates and from separated relatives compared to calls of unfamiliar, unrelated tamarins. Four tamarins had been out of contact with relatives for more than 4 years and still showed recognition as evidenced by low levels of arousal. Results could not be explained in terms of proximity to former relatives. Long-term memory for vocal signatures of relatives is adaptive and may be much more common than has been demonstrated.
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Affiliation(s)
- Stephanie Matthews
- Department of Psychology, University of Wisconsin, Madison, WI 53706, USA
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Radon M, Kaduthodil M, Jagdish J, Matthews S, Hill C, Bull M, Morcos S. Potentials and limitations of low-concentration contrast medium (150 mg iodine/ml) in CT pulmonary angiography [Clin Radiol 2011; 66(1):43–49]. Clin Radiol 2011. [DOI: 10.1016/j.crad.2011.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Thomas S, Matthews S. Current status of TMJ arthroscopy in the United Kingdom—a national survey. Br J Oral Maxillofac Surg 2011. [DOI: 10.1016/j.bjoms.2011.03.234] [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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Ziyab AH, Raza A, Karmaus W, Tongue N, Zhang H, Matthews S, Arshad SH, Roberts G. Trends in eczema in the first 18 years of life: results from the Isle of Wight 1989 birth cohort study. Clin Exp Allergy 2010; 40:1776-84. [DOI: 10.1111/j.1365-2222.2010.03633.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Dietze P, Room R, Jolley D, Matthews S, Chikritzhs T. The adverse consequences of drinking in a sample of Australian adults. Journal of Substance Use 2010. [DOI: 10.3109/14659891.2010.495816] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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McLachan CS, Taylor CB, Li Y, Willenberg L, Matthews S, Glass P, Myburgh J. Severe falciparum malaria patients transferred "late" to a high level ICU in India represents a difficult research capture point to comment on predictors of mortality and related organ dysfunction. Singapore Med J 2010; 51:752-755. [PMID: 20938618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Slack K, Billing R, Matthews S, Allbutt HN, Einstein R, Henderson JM. Subtle cardiovascular dysfunction in the unilateral 6-hydroxydopamine-lesioned rat. Parkinsons Dis 2010; 2010:427810. [PMID: 20976085 PMCID: PMC2957224 DOI: 10.4061/2010/427810] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Revised: 11/17/2009] [Accepted: 12/30/2009] [Indexed: 11/20/2022]
Abstract
The present study evaluated whether the unilateral 6-hydroxydopamine (6-OHDA) model of Parkinson's disease produces autonomic deficits. Autonomic parameters were assessed by implanting a small radiofrequency telemetry device which measured heart rate variability (HRV), diurnal rhythms of heart rate (HR), core body temperature (cBT) and locomotor activity (LA). Rats then received 6-OHDA lesion or sham surgery. 6-OHDA lesioned rats exhibited head and body axis biases, defective sensorimotor function ("disengage" test), and prominent apomorphine rotation (all P < .05 versus controls). Diurnal rhythm of HR was lower for 6-OHDA lesioned rats (n = 8) versus controls (n = 6; P < .05). Whilst HR decreased similarly in both groups during the day, there was a greater decrease in HR for the 6-OHDA lesioned rats at night (by 38 b.p.m. relative to 17 b.p.m. for controls). LA and cBT did not differ between surgery groups. This study indicates the unilateral 6-OHDA model of PD shows subtle signs of cardiovascular autonomic dysfunction.
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Affiliation(s)
- K Slack
- Department of Pharmacology, Bosch Institute and School of Medical Sciences, University of Sydney, NSW 2006, Australia
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