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Hazard ML, Wicker C, Qian F, Williamson AE, Teixeira FB. Accuracy of cold sensibility testing on teeth with full-coverage restorations: a clinical study. Int Endod J 2021; 54:1008-1015. [PMID: 33550601 DOI: 10.1111/iej.13490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 02/03/2021] [Indexed: 01/19/2023]
Abstract
AIM This clinical study evaluated the reliability of the 1,1,1,2-tetrafluoroethane (Endo Ice) cold test to determine the pulpal diagnosis of teeth with full-coverage restorations (FCR). The effect of several variables on its reliability was also investigated. METHODOLOGY Data collected from 825 patients treated in the Advanced Education Program in Endodontics at the University of Iowa, USA were analysed. The experimental group included 425 teeth with FCR, whilst the control group consisted of 400 teeth with natural crowns (NC). The pulp sensibility test results, tooth type, tooth number, type of crown, age, gender, presence or absence of caries and recent use of analgesics were recorded. Bivariate analyses were performed to assess the variables associated with the accuracy of dental pulp sensibility tests for either teeth with crowns or teeth without crowns using chi-square tests, Fisher's exact tests, Cochran-Mantel-Haenszel tests, and the Wilcoxon rank-sum tests. A P-value of less than 0.05 was used as a criterion for statistical significance, and a P-value in 0.05 < P < 0.10 was used as a criterion for marginal relevance. RESULTS The sensibility test results for FCR teeth had an accuracy of 0.866; sensitivity of 0.835; specificity of 0.879; a positive predictive value of 0.746; and a negative predictive value of 0.926. The data indicated a significant difference in the accuracy of pulp sensibility test results between the experimental and control groups (P < 0.001). Although the cold test in FCR teeth still had high accuracy, teeth with NC were significantly more likely to have true-positive and true-negative results (91.5% NC vs. 86.6% FCR, P = 0.024). No significant differences between FCR and NC were found concerning gender, tooth type, type of crown, the presence of abutment and recent use of analgesic (P > 0.05). CONCLUSION Pulp sensibility cold testing with 1,1,1,2-tetrafluoroethane (TFE) on teeth with FCR was less accurate than on teeth without full-coverage crowns. However, the use of TFE cold testing is still a relevant and reliable diagnostic tool, particularly for teeth with a pulpal diagnosis of symptomatic irreversible pulpitis. Clinicians should routinely carry out cold pulp sensibility testing on teeth when making a pulpal diagnosis.
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Affiliation(s)
- M L Hazard
- Department of Endodontics, College of Dentistry and Dental Clinics, University of Iowa, Iowa City, IA, USA
| | - C Wicker
- Department of Endodontics, College of Dentistry and Dental Clinics, University of Iowa, Iowa City, IA, USA
| | - F Qian
- Division of Biostatistics and Computational Biology, College of Dentistry and Dental Clinics, University of Iowa, Iowa City, IA, USA
| | - A E Williamson
- Department of Endodontics, College of Dentistry and Dental Clinics, University of Iowa, Iowa City, IA, USA
| | - F B Teixeira
- Department of Endodontics, College of Dentistry and Dental Clinics, University of Iowa, Iowa City, IA, USA
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Williamson AE, Ylioja PM, Robertson MN, Antonova-Koch Y, Avery V, Baell JB, Batchu H, Batra S, Burrows JN, Bhattacharyya S, Calderon F, Charman SA, Clark J, Crespo B, Dean M, Debbert SL, Delves M, Dennis ASM, Deroose F, Duffy S, Fletcher S, Giaever G, Hallyburton I, Gamo FJ, Gebbia M, Guy RK, Hungerford Z, Kirk K, Lafuente-Monasterio M, Lee A, Meister S, Nislow C, Overington JP, Papadatos G, Patiny L, Pham J, Ralph S, Ruecker A, Ryan E, Southan C, Srivastava K, Swain C, Tarnowski M, Thomson P, Turner P, Wallace IM, Wells TC, White K, White L, Willis P, Winzeler EA, Wittlin S, Todd MH. Open Source Drug Discovery: Highly Potent Antimalarial Compounds Derived from the Tres Cantos Arylpyrroles. ACS Cent Sci 2016; 2:687-701. [PMID: 27800551 PMCID: PMC5084075 DOI: 10.1021/acscentsci.6b00086] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Indexed: 05/26/2023]
Abstract
The development of new antimalarial compounds remains a pivotal part of the strategy for malaria elimination. Recent large-scale phenotypic screens have provided a wealth of potential starting points for hit-to-lead campaigns. One such public set is explored, employing an open source research mechanism in which all data and ideas were shared in real time, anyone was able to participate, and patents were not sought. One chemical subseries was found to exhibit oral activity but contained a labile ester that could not be replaced without loss of activity, and the original hit exhibited remarkable sensitivity to minor structural change. A second subseries displayed high potency, including activity within gametocyte and liver stage assays, but at the cost of low solubility. As an open source research project, unexplored avenues are clearly identified and may be explored further by the community; new findings may be cumulatively added to the present work.
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Affiliation(s)
- Alice E. Williamson
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Paul M. Ylioja
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Murray N. Robertson
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Yevgeniya Antonova-Koch
- Department
of Pediatrics, Pharmacology & Drug Development, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Vicky Avery
- Discovery Biology, Eskitis Institute for
Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Jonathan B. Baell
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Harikrishna Batchu
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Sanjay Batra
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Jeremy N. Burrows
- Medicines for Malaria Venture, PO Box
1826, 20 rte de Pre-Bois, 1215 Geneva 15, Switzerland
| | - Soumya Bhattacharyya
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Felix Calderon
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Susan A. Charman
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Julie Clark
- Department of Chemical
Biology & Therapeutics, St. Jude Children’s
Research Hospital, MS 1000, Room E9050, 262 Danny Thomas Place, Memphis, Tennessee 38105-3678, United States
| | - Benigno Crespo
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Matin Dean
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Stefan L. Debbert
- Department of Chemistry, Lawrence University, 233 Steitz Science
Hall, 711 East Boldt Way, Appleton, Wisconsin 54911, United States
| | - Michael Delves
- Department of Life Sciences, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Adelaide S. M. Dennis
- Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
| | - Frederik Deroose
- Asclepia Outsourcing Solutions, Damvalleistraat 49, B-9070 Destelbergen, Belgium
| | - Sandra Duffy
- Discovery Biology, Eskitis Institute for
Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Sabine Fletcher
- Discovery Biology, Eskitis Institute for
Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Guri Giaever
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - Irene Hallyburton
- Drug Discovery Unit, Division of Biological
Chemistry and Drug Discovery, University
of Dundee, Dundee, DD1 5EH, U.K.
| | - Francisco-Javier Gamo
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Marinella Gebbia
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - R. Kiplin Guy
- Department of Chemical
Biology & Therapeutics, St. Jude Children’s
Research Hospital, MS 1000, Room E9050, 262 Danny Thomas Place, Memphis, Tennessee 38105-3678, United States
| | - Zoe Hungerford
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Kiaran Kirk
- Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
| | - Maria
J. Lafuente-Monasterio
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Anna Lee
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - Stephan Meister
- Department
of Pediatrics, Pharmacology & Drug Development, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Corey Nislow
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - John P. Overington
- European Molecular
Biology Laboratory—European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SD, U.K.
| | - George Papadatos
- European Molecular
Biology Laboratory—European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SD, U.K.
| | - Luc Patiny
- Institute of Chemical Sciences and Engineering
(ISIC), Ecole Polytechnique Fédérale
de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - James Pham
- Department
of Biochemistry & Molecular Biology, Bio21 Molecular Science and
Biotechnology Institute, The University
of Melbourne, Melbourne, Victoria 3010, Australia
| | - Stuart
A. Ralph
- Department
of Biochemistry & Molecular Biology, Bio21 Molecular Science and
Biotechnology Institute, The University
of Melbourne, Melbourne, Victoria 3010, Australia
| | - Andrea Ruecker
- Department of Life Sciences, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Eileen Ryan
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Christopher Southan
- IUPHAR/BPS Guide to PHARMACOLOGY, Centre for Integrative Physiology,
School of Biomedical Sciences, University
of Edinburgh, Edinburgh, EH8 9XD, U.K.
| | - Kumkum Srivastava
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Chris Swain
- Cambridge MedChem
Consulting, 8 Mangers
Lane, Duxford, Cambridge CB22 4RN, U.K.
| | - Matthew
J. Tarnowski
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Patrick Thomson
- School
of Chemistry, The University of Edinburgh, Joseph Black Building, West Mains
Road, Edinburgh EH9 3JJ, U.K.
| | - Peter Turner
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Iain M. Wallace
- European Molecular
Biology Laboratory—European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SD, U.K.
| | - Timothy
N. C. Wells
- Medicines for Malaria Venture, PO Box
1826, 20 rte de Pre-Bois, 1215 Geneva 15, Switzerland
| | - Karen White
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Laura White
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Paul Willis
- Medicines for Malaria Venture, PO Box
1826, 20 rte de Pre-Bois, 1215 Geneva 15, Switzerland
| | - Elizabeth A. Winzeler
- Department
of Pediatrics, Pharmacology & Drug Development, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Sergio Wittlin
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4051 Basel, Switzerland
| | - Matthew H. Todd
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
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4
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Badiola KA, Bird C, Brocklesby WS, Casson J, Chapman RT, Coles SJ, Cronshaw JR, Fisher A, Frey JG, Gloria D, Grossel MC, Hibbert DB, Knight N, Mapp LK, Marazzi L, Matthews B, Milsted A, Minns RS, Mueller KT, Murphy K, Parkinson T, Quinnell R, Robinson JS, Robertson MN, Robins M, Springate E, Tizzard G, Todd MH, Williamson AE, Willoughby C, Yang E, Ylioja PM. Experiences with a researcher-centric ELN. Chem Sci 2015; 6:1614-1629. [PMID: 29308130 PMCID: PMC5639792 DOI: 10.1039/c4sc02128b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/20/2014] [Indexed: 11/28/2022] Open
Abstract
Electronic Laboratory Notebooks (ELNs) are progressively replacing traditional paper books in both commercial research establishments and academic institutions. University researchers require specific features from ELNs, given the need to promote cross-institutional collaborative working, to enable the sharing of procedures and results, and to facilitate publication. The LabTrove ELN, which we use as our exemplar, was designed to be researcher-centric (i.e., not only aimed at the individual researcher's basic needs rather than to a specific institutional or subject or disciplinary agenda, but also able to be tailored because it is open source). LabTrove is being used in a heterogeneous set of academic laboratories, for a range of purposes, including analytical chemistry, X-ray studies, drug discovery and a biomaterials project. Researchers use the ELN for recording experiments, preserving data collected, and for project coordination. This perspective article describes the experiences of those researchers from several viewpoints, demonstrating how a web-based open source electronic notebook can meet the diverse needs of academic researchers.
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Affiliation(s)
- Katrina A Badiola
- School of Chemistry , The University of Sydney , NSW 2006 , Australia
| | - Colin Bird
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | | | - John Casson
- Scientific Computing Department , STFC Rutherford Appleton Laboratory , Chilton , Didcot , Oxfordshire OX11 0QX , UK
| | - Richard T Chapman
- Central Laser Facility , STFC Rutherford Appleton Laboratory , Chilton , Didcot , Oxfordshire OX11 0QX , UK
| | - Simon J Coles
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - James R Cronshaw
- School of Chemistry , The University of Sydney , NSW 2006 , Australia
| | - Adam Fisher
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Jeremy G Frey
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Danmar Gloria
- School of Chemistry , UNSW Australia , Sydney , NSW 2052 , Australia
| | - Martin C Grossel
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - D Brynn Hibbert
- School of Chemistry , UNSW Australia , Sydney , NSW 2052 , Australia
| | - Nicola Knight
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Lucy K Mapp
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Luke Marazzi
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Brian Matthews
- Scientific Computing Department , STFC Rutherford Appleton Laboratory , Chilton , Didcot , Oxfordshire OX11 0QX , UK
| | - Andy Milsted
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
- Electronics and Computer Science , University of Southampton , Southampton , SO17 1BJ , UK
| | - Russell S Minns
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Karl T Mueller
- Penn State University , Department of Chemistry , University Park , 104 Chemistry Building , PA , USA
| | - Kelly Murphy
- Penn State University , Department of Chemistry , University Park , 104 Chemistry Building , PA , USA
| | - Tim Parkinson
- Electronics and Computer Science , University of Southampton , Southampton , SO17 1BJ , UK
| | - Rosanne Quinnell
- School of Chemistry , The University of Sydney , NSW 2006 , Australia
| | - John S Robinson
- Electronics and Computer Science , University of Southampton , Southampton , SO17 1BJ , UK
| | | | - Michael Robins
- School of Chemistry , The University of Sydney , NSW 2006 , Australia
| | - Emma Springate
- Central Laser Facility , STFC Rutherford Appleton Laboratory , Chilton , Didcot , Oxfordshire OX11 0QX , UK
| | - Graham Tizzard
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Matthew H Todd
- School of Chemistry , The University of Sydney , NSW 2006 , Australia
| | | | - Cerys Willoughby
- Chemistry , University of Southampton , Southampton , SO17 1BJ , UK .
| | - Erica Yang
- Scientific Computing Department , STFC Rutherford Appleton Laboratory , Chilton , Didcot , Oxfordshire OX11 0QX , UK
| | - Paul M Ylioja
- School of Chemistry , The University of Sydney , NSW 2006 , Australia
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