1
|
Goswami J, MacArthur TA, Ramachandran D, Mahony C, Howick AS, Price-Troska T, Thompson RJ, Spears GM, Bailey KR, Patnaik MS, Passos JF, Park MS, Ferrer A. TELOMERE LENGTH OF PERIPHERAL BLOOD MONONUCLEAR CELLS IS ASSOCIATED WITH DISCHARGE DISPOSITION IN OLDER TRAUMA PATIENTS. Shock 2023; 59:327-333. [PMID: 36427074 PMCID: PMC10505495 DOI: 10.1097/shk.0000000000002059] [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] [Indexed: 11/27/2022]
Abstract
Introduction: Little is known regarding peripheral blood mononuclear cell telomere length (PBMC-TL) and response to traumatic injury. The objective of this study was to characterize the role of PBMC-TL in coagulation and clinical outcomes after injury. Methods: Plasma and buffy coats were prospectively collected from trauma patients and healthy volunteers. DNA was purified and PBMC-TL quantified by quantitative polymerase chain reaction. Thrombin generation kinetics were expressed as lag time (in minutes), peak height (in nanometers), time to peak (in minutes), and endogenous thrombin potential (in nM × min). Results are in median and quartiles [Q1, Q3]. P < 0.05 was considered significant (Wilcoxon rank sum testing). Results: Forty-two younger patients (21 [20, 22] years, 69% were male) and 39 older patients (62 [61, 64] years, 79% were male) were included. There was no significant difference in Clinical Frailty Scores between groups. Younger patients had longer total PBMC-TL (0.40 Mb [0.30, 0.49] vs. 0.29 Mb [0.23, 0.33], P < 0.001) and longer average PBMC-TL per chromosome (4.3 kb [3.3, 5.3] vs. 3.2 kb [2.5, 3.7], P < 0.001). When older patients were stratified by 50th percentile of PBMC-TL, there were no differences in thrombin generation; however, those with shorter telomeres were less likely to be discharged home (29% vs. 77%, P = 0.004). Older patients in the bottom quartile of PBMC-TL had shorter lag time (2.78 min [2.33, 3.00] vs. 3.33 min [3.24, 3.89], P = 0.030) and were less likely to be discharged home (22% vs. 90%, P = 0.006) than those in the top quartile of PBMC-TL. Multivariable logistic regression models revealed both increased age and shorter PBMC-TL to be independent predictors of discharge disposition other than home. Conclusion: In older trauma patients, shorter PBMC-TL is associated with accelerated initiation of thrombin generation and lower likelihood of being discharged to home.
Collapse
Affiliation(s)
- Julie Goswami
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
- Division of Acute Care Surgery, Department of Surgery, Rutgers Robert Wood Johnson Medical School, 125 Paterson St., New Brunswick, NJ 08901
| | - Taleen A. MacArthur
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Dhanya Ramachandran
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Cillian Mahony
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Annelise S. Howick
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Tammy Price-Troska
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Riley J. Thompson
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Grant M. Spears
- Clinical Statistics and Biostatistics, Department of Health Sciences Research, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Kent R. Bailey
- Clinical Statistics and Biostatistics, Department of Health Sciences Research, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Mrinal S. Patnaik
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Joao F. Passos
- Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
- Robert and Arlene Kogod Center for Aging, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Myung S. Park
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
| | - Alejandro Ferrer
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, 200 1 St. SW, Rochester, MN 55905
- Center for Individualized Medicine, Mayo Clinic 200 1 St SW, Rochester, MN 55905
| |
Collapse
|
2
|
Goswami J, MacArthur TA, Mahony C, Kizhakkedathu JN, Vappala S, Smith S, Morrissey JH, Spears GM, Bailey KR, Dong JF, Kozar RA, Hall N, Johnstone A, Park MS. DNASE-MEDIATED DISSOLUTION OF NEUTROPHIL EXTRACELLULAR TRAPS ACCELERATES IN VITRO THROMBIN GENERATION KINETICS IN TRAUMA PATIENTS. Shock 2022; 58:217-223. [PMID: 35959777 PMCID: PMC9810375 DOI: 10.1097/shk.0000000000001972] [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] [Indexed: 01/07/2023]
Abstract
ABSTRACT Introduction: Neutrophil extracellular traps (NETs) trigger thrombin generation. We aimed to characterize the effects of deoxyribonuclease (DNAse) on NET components (cell-free DNA [cfDNA] and histones) and thrombin generation after trauma. Methods: Citrated plasma samples were collected from trauma patients and healthy volunteers. Thrombin generation (calibrated automated thrombogram) was measured as lag time (LT, in minutes), peak height (in nM), and time to peak thrombin generation (in minutes). Citrullinated histone 3 (CitH3) and 4 (CitH4) were measured by enzyme-linked immunosorbent assay; cfDNA by PicoGreen (all in nanograms per milliliter). Samples analyzed +/- DNAse (1,000 U/mL). Results expressed as median and quartiles [Q1, Q3], Wilcoxon testing, P < 0.05 significant. Results: We enrolled 46 patients (age, 48 [31, 67] years; 67% male) and 21 volunteers (age, 45 [28, 53] years; 43% male). Deoxyribonuclease treatment of trauma plasma led to shorter LT (3.11 [2.67, 3.52] min; 2.93 [2.67, 3.19] min), shorter time to peak thrombin generation (6.00 [5.30, 6.67] min; 5.48 [5.00, 6.00] min), greater peak height (273.7 [230.7, 300.5] nM; 288.7 [257.6, 319.2] nM), decreased cfDNA (576.9 [503.3, 803.1] ng/mL; 456.0 [393.5, 626.7] ng/mL), decreased CitH3 (4.54 [2.23, 10.01] ng/mL; 3.59 [1.93, 7.98] ng/mL), and increased H4 (1.30 [0.64, 6.36] ng/mL; 1.75 [0.83, 9.67] ng/mL), all P < 0.001. The effect of DNAse was greater on trauma patients as compared with volunteers for LT (ΔLT, -0.21 vs. -0.02 min, P = 0.007), cfDNA (ΔcfDNA -133.4 vs. -84.9 ng/mL, P < 0.001), and CitH3 (ΔCitH3, -0.65 vs. -0.11 ng/mL, P = 0.004). Conclusion: Deoxyribonuclease treatment accelerates thrombin generation kinetics in trauma patient samples as compared with healthy volunteers. These findings suggest that NETs may contribute to the hypercoagulable state observed in trauma patients.
Collapse
Affiliation(s)
- Julie Goswami
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905
| | - Taleen A. MacArthur
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905
| | - Cillian Mahony
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905
| | - Jayachandran N. Kizhakkedathu
- Department of Pathology and Laboratory Medicine, Centre for Blood Research, University of British Columbia, Vancouver, BC, V6T 2B5
| | - Sreeparna Vappala
- Department of Pathology and Laboratory Medicine, Centre for Blood Research, University of British Columbia, Vancouver, BC, V6T 2B5
| | - Stephanie Smith
- Department of Biological Chemistry, University of Michigan Medical School, 1150 W. Medical Center Drive, Ann Arbor, MI 48109
| | - James H. Morrissey
- Department of Biological Chemistry, University of Michigan Medical School, 1150 W. Medical Center Drive, Ann Arbor, MI 48109
| | - Grant M. Spears
- Clinical Statistics and Biostatistics, Department of Health Sciences Research, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905
| | - Kent R. Bailey
- Clinical Statistics and Biostatistics, Department of Health Sciences Research, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905
| | - Jing-Fei Dong
- Division of Hematology, University of Washington School of Medicine, Bloodworks Research Institute, 1551 Eastlake Avenue E, Seattle, WA 98102
| | - Rosemary A. Kozar
- Shock Trauma Center, University of Maryland School of Medicine, 22 S Greene St., Baltimore, MD 21201
| | - Nathan Hall
- EpiCypher, Inc. 6 Davis Dr., Durham, NC 27709
| | | | - Myung S. Park
- Division of Trauma, Critical Care, and General Surgery, Department of Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905
- Division of Hematology, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905
| |
Collapse
|
3
|
Widjaja F, Mahony C, Rietjens I, Troutman J. Including the intestinal microbiome incubations in physiologically based kinetic modeling of pyrrolizidine alkaloid N-oxides. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00512-9] [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]
|
4
|
Dent MP, Vaillancourt E, Thomas RS, Carmichael PL, Ouedraogo G, Kojima H, Barroso J, Ansell J, Barton-Maclaren TS, Bennekou SH, Boekelheide K, Ezendam J, Field J, Fitzpatrick S, Hatao M, Kreiling R, Lorencini M, Mahony C, Montemayor B, Mazaro-Costa R, Oliveira J, Rogiers V, Smegal D, Taalman R, Tokura Y, Verma R, Willett C, Yang C. Paving the way for application of next generation risk assessment to safety decision-making for cosmetic ingredients. Regul Toxicol Pharmacol 2021; 125:105026. [PMID: 34389358 PMCID: PMC8547713 DOI: 10.1016/j.yrtph.2021.105026] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 02/26/2021] [Revised: 07/22/2021] [Accepted: 08/06/2021] [Indexed: 11/30/2022]
Abstract
Next generation risk assessment (NGRA) is an exposure-led, hypothesis-driven approach that has the potential to support animal-free safety decision-making. However, significant effort is needed to develop and test the in vitro and in silico (computational) approaches that underpin NGRA to enable confident application in a regulatory context. A workshop was held in Montreal in 2019 to discuss where effort needs to be focussed and to agree on the steps needed to ensure safety decisions made on cosmetic ingredients are robust and protective. Workshop participants explored whether NGRA for cosmetic ingredients can be protective of human health, and reviewed examples of NGRA for cosmetic ingredients. From the limited examples available, it is clear that NGRA is still in its infancy, and further case studies are needed to determine whether safety decisions are sufficiently protective and not overly conservative. Seven areas were identified to help progress application of NGRA, including further investments in case studies that elaborate on scenarios frequently encountered by industry and regulators, including those where a ‘high risk’ conclusion would be expected. These will provide confidence that the tools and approaches can reliably discern differing levels of risk. Furthermore, frameworks to guide performance and reporting should be developed.
Collapse
Affiliation(s)
- M P Dent
- Unilever Safety and Environmental Assurance Centre, Sharnbrook, Bedfordshire, MK44 1LQ, UK.
| | - E Vaillancourt
- Health Canada, Healthy Environments and Consumer Safety Branch, 269 Laurier Ave. W., Ottawa, ON K1A 0K9, Canada.
| | - R S Thomas
- Center for Computational Toxicology and Exposure, U.S. Environmental Protection Agency, Research, Triangle Park, NC, 27711, USA.
| | - P L Carmichael
- Unilever Safety and Environmental Assurance Centre, Sharnbrook, Bedfordshire, MK44 1LQ, UK.
| | - G Ouedraogo
- l'Oréal, Research and Development, Paris, France.
| | - H Kojima
- National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, 158-8501, Tokyo, Japan.
| | - J Barroso
- European Commission, Joint Research Centre (JRC), Ispra, VA, Italy.
| | - J Ansell
- US Personal Care Products Council (PCPC), 1620 L St. NW, Suite 1200, Washington, D.C, 20036, USA.
| | - T S Barton-Maclaren
- Health Canada, Healthy Environments and Consumer Safety Branch, 269 Laurier Ave. W., Ottawa, ON K1A 0K9, Canada.
| | - S H Bennekou
- National Food Institute, Technical University of Denmark (DTU), Copenhagen, Denmark.
| | - K Boekelheide
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA.
| | - J Ezendam
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands.
| | - J Field
- Health Canada, Healthy Environments and Consumer Safety Branch, 269 Laurier Ave. W., Ottawa, ON K1A 0K9, Canada.
| | - S Fitzpatrick
- US Food and Drug Administration (US FDA), Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Drive, College Park, MD, 20740, USA.
| | - M Hatao
- Japan Cosmetic Industry Association (JCIA), Metro City Kamiyacho 6F, 5-1-5, Toranomon, Minato-ku, Tokyo, 105-0001 Japan.
| | - R Kreiling
- Clariant Produkte (Deutschland) GmbH, Am Unisyspark 1, 65843, Sulzbach, Germany.
| | - M Lorencini
- Grupo Boticário, Research & Development, São José dos Pinhais, Brazil.
| | - C Mahony
- Procter & Gamble Technical Centres Ltd, Reading, RG2 0RX, UK.
| | - B Montemayor
- Cosmetics Alliance Canada, 420 Britannia Road East Suite 102, Mississauga, ON L4Z 3L5, Canada.
| | - R Mazaro-Costa
- Departament of Pharmacology, Universidade Federal de Goiás, Goiânia, GO, 74.690-900, Brazil.
| | - J Oliveira
- Brazilian Health Regulatory Agency (ANVISA), Gerência de Produtos de Higiene, Perfumes, Cosméticos e Saneantes, Setor de Indústria e Abastecimento (SIA), Trecho 5, Área Especial 57, CEP 71205-050, Brasília, DF, Brazil.
| | - V Rogiers
- Vrije Universiteit Brussel, Brussels, Belgium.
| | - D Smegal
- US Food and Drug Administration (US FDA), Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Drive, College Park, MD, 20740, USA.
| | - R Taalman
- Cosmetics Europe, Avenue Herrmann-Debroux 40, 1160 Auderghem, Belgium.
| | - Y Tokura
- Allergic Disease Research Center, Chutoen General Medical Center, Kakegawa, Japan.
| | - R Verma
- US Food and Drug Administration (US FDA), Center for Food Safety and Applied Nutrition (CFSAN), 5001 Campus Drive, College Park, MD, 20740, USA.
| | - C Willett
- Humane Society International, Washington, DC, USA.
| | - C Yang
- Taiwan Cosmetic Industry Association (TWCIA), 8F No. 136, Bo'ai Rd., Zhongzheng Dist., Taipei City, 100, Taiwan, ROC.
| |
Collapse
|
5
|
Musa J, Zielinski M, Hernandez M, Mohan A, Traynor M, Mahony C, Ferrara M, Immerman J, Aho J. Tension pneumothorax decompression with colorimetric capnography: pilot case series. Gen Thorac Cardiovasc Surg 2021; 70:59-63. [PMID: 34296395 DOI: 10.1007/s11748-021-01686-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/19/2021] [Indexed: 10/20/2022]
Abstract
Tension pneumothorax is a life-threatening condition that can develop when either the visceral pleura is disrupted, or with injury to the tracheobronchial tree. Rapid, accurate diagnosis and appropriate management are required to prevent significant atelectasis, hypoxia, circulatory arrest, and ultimate patient demise. Needle decompression is the current standard of care for the management of tension pneumothorax. Healthcare providers struggle to assess the success of decompression due to a lack of any immediate objective feedback. The gaseous composition of tension pneumothorax is similar to that of end respiratory gas. This includes an increased partial pressure of carbon dioxide in comparison to atmospheric air, which makes colorimetric capnography an ideal confirmatory test. This colorimetric capnography device may help the healthcare providers to make an objective and accurate assessment of the success of the needle decompression, in particular in prehospital environments.
Collapse
Affiliation(s)
- Juna Musa
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Martin Zielinski
- Department of Trauma, Critical Care and General Surgery, Mayo Clinic, Rochester, MN, USA
| | - Matthew Hernandez
- Department of Trauma, Critical Care and General Surgery, Mayo Clinic, Rochester, MN, USA
| | - Arjunmohan Mohan
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Michael Traynor
- Department of Trauma, Critical Care and General Surgery, Mayo Clinic, Rochester, MN, USA
| | - Cillian Mahony
- Department of Trauma, Critical Care and General Surgery, Mayo Clinic, Rochester, MN, USA
| | - Michael Ferrara
- Department of Trauma, Critical Care and General Surgery, Mayo Clinic, Rochester, MN, USA
| | - Joseph Immerman
- Department of Trauma, Critical Care and General Surgery, Mayo Clinic, Rochester, MN, USA
| | - Johnathon Aho
- Division of Trauma, Critical Care and General Surgery, Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 1st Street SW, Rochester, MN, 55902, USA.
| |
Collapse
|
6
|
Nepelska M, Cronin M, Cubberley R, Dent M, Firman J, Fisher J, Kenna G, Mahony C, Nicol B, Piechota S, Przybylak K, Schepky A, Tozer S, Troutman J, Desprez B. Cosmetic Europe's long range science strategy – A non-animal safety assessment case study for phenoxyethanol, a cosmetic ingredient. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
7
|
Mahony C, Vandermolen K, Otto-Bruc A, Naciff J, Kennedy K, Daston G. In vitro alternatives for assessing human safety of botanical mixtures. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
8
|
Watson GA, Ahmed Y, Picardo S, Chew S, Cobbe S, Mahony C, Crotty J, Wallis F, Shelly MJ, Kiely P, Ipadeola OB, Healy V, Osman N, Gupta RK. Unusual Sites of High-Grade Neuroendocrine Carcinomas: A Case Series and Review of the Literature. Am J Case Rep 2018; 19:710-723. [PMID: 29915166 PMCID: PMC6044230 DOI: 10.12659/ajcr.908953] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Case series Patient: Female, 29 • Female, 69 • Female, 52 • Female, 71 • Male, 62 • Female, 67 Final Diagnosis: Neuroendocrine carcinoma Symptoms: Abdominal pain Medication: — Clinical Procedure: — Specialty: Oncology
Collapse
Affiliation(s)
- Geoffrey A Watson
- Department of Medical Oncology, University Hospital Limerick, Limerick, Ireland
| | - Yasar Ahmed
- Department of Medical Oncology, University Hospital Limerick, Limerick, Ireland
| | - Sarah Picardo
- Department of Medical Oncology, University Hospital Limerick, Limerick, Ireland
| | - Sonya Chew
- Department of Medical Oncology, University Hospital Limerick, Limerick, Ireland
| | - Shona Cobbe
- Graduate Entry Medical School, University Hospital Limerick, Limerick, Ireland
| | - Cillian Mahony
- Graduate Entry Medical School, University Hospital Limerick, Limerick, Ireland
| | - James Crotty
- Department of Radiology, University Hospital Limerick, Limerick, Ireland
| | - Fintan Wallis
- Department of Radiology, University Hospital Limerick, Limerick, Ireland
| | - Martin J Shelly
- Department of Radiology, University Hospital Limerick, Limerick, Ireland
| | - Patrick Kiely
- Department of Radiology, University Hospital Limerick, Limerick, Ireland
| | - Olu Bunmi Ipadeola
- Department of Histopathology, University Hospital Limerick, Limerick, Ireland
| | - Vourneen Healy
- Department of Histopathology, University Hospital Limerick, Limerick, Ireland
| | - Nemer Osman
- Department of Medical Oncology, University Hospital Limerick, Limerick, Ireland
| | - Rajnish K Gupta
- Department of Medical Oncology, University Hospital Limerick, Limerick, Ireland.,Graduate Entry Medical School, University Hospital Limerick, Limerick, Ireland
| |
Collapse
|
9
|
Mahony C, Currie R, Daston G, Kleinstreuer N, van de Water B. Highlight report: ‘Big data in the 3R’s: outlook and recommendations’, a roundtable summary. Arch Toxicol 2018; 92:1015-1020. [DOI: 10.1007/s00204-017-2145-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 10/18/2022]
|
10
|
Richarz A, Bois F, Exner T, Judson R, Mahony C, Ouedraogo G, Paini A, White A, Worth A, Berggren E. Applied chemical safety assessment case study for repeated dose toxicity integrating non-animal methods. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1807] [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]
|
11
|
|
12
|
|
13
|
Schultz T, Amcoff P, Berggren E, Gautier F, Klaric M, Knight D, Mahony C, Schwarz M, White A, Cronin M. A strategy for structuring and reporting a read-across prediction of toxicity. Regul Toxicol Pharmacol 2015; 72:586-601. [DOI: 10.1016/j.yrtph.2015.05.016] [Citation(s) in RCA: 864] [Impact Index Per Article: 96.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/13/2015] [Accepted: 05/14/2015] [Indexed: 11/25/2022]
|
14
|
|
15
|
Mahony C. Stanley Shaldon. Assoc Med J 2014. [DOI: 10.1136/bmj.g1468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
16
|
|
17
|
|
18
|
Abstract
UNLABELLED The study aimed at determining hydrogen peroxide recovery in saliva during use of different home bleaching products by smokers and non-smokers. Peroxide recovery was evaluated with respect to the safe level reported in the literature. Determination of peroxide levels in saliva was performed with peroxidase, phenol and 4-aminoantipyrin in a photometric method. Four different bleaching regimens were used by 10 smokers and 10 non-smokers: Whitestrips, Vivastyle (tray-based) and two paint-on products (Crest Night Effects, Colgate Simply White). Whole saliva was collected and total amount of peroxide (mg) released during the 60 min bleaching period was determined: Colgate Simply White: 2.67 +/-0.88 (non-smokers); 2.66 +/- 1.17 (smokers); Crest Night Effects: 0.23 +/- 0.13 (non-smokers); 0.25 +/-0.16 (smokers); Vivastyle: 2.47 +/- 0.82 (non-smokers), 2.44 +/- 1.31 (smokers); Whitestrips: 1.39 +/- 0.62 (non-smokers), 2.02 +/- 1.86 (smokers). In terms of amount of peroxide kg(-1) body weight the bleaching systems led to a single exposure of 0.004-0.046 mg kg(-1), which is distinctly less than safe daily dose of 0.26 mg kg(-1) day(-1), if calculated for a small person (58 kg). The criterion smoker versus non-smokers had no influence on peroxide levels in the oral cavity. CONCLUSION Smoking did not appear to impact the anti-oxidant defence capacity of the oral cavity with respect to degrading peroxides released from bleaching products. Significantly lower amounts of peroxides were detected in saliva during application of the paint-on product Crest Nights Effects compared with the other bleaching systems.
Collapse
Affiliation(s)
- C Hannig
- Department of Operative Dentistry, Preventive Dentistry and Periodontology, University of Göttingen, Göttingen, Germany.
| | | | | | | | | |
Collapse
|
19
|
Mahony C, Felter SP, McMillan DA. An exposure-based risk assessment approach to confirm the safety of hydrogen peroxide for use in home tooth bleaching. Regul Toxicol Pharmacol 2006; 44:75-82. [PMID: 16289279 DOI: 10.1016/j.yrtph.2005.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2005] [Indexed: 10/25/2022]
Abstract
Hydrogen peroxide has a long history of safe use in a wide variety of medical and consumer products, including oral care products. The use of hydrogen peroxide in tooth bleaching has been extended to home use. Because this represents a new use, questions have been raised regarding safety, particularly the potential for peroxide tooth-whitening products to increase the risk of oral cancer in high-risk individuals (e.g., smokers and drinkers). These concerns are based on limited experimental data in animals that hydrogen peroxide has extremely weak tumor promoting activity and a lack of publicly available data on exposure to peroxides from the home use of tooth-whitening products. This paper provides a weight-of-evidence cancer hazard characterization for hydrogen peroxide and presents a quantitative risk assessment that confirms a favorable human safety profile risk associated with low levels of exposure to hydrogen peroxide from the use of tooth-whitening products. This includes a lack of tumor promotion risk which is important because tooth-whitening products are often used by chronic smokers and drinkers, who may represent a susceptible subpopulation because of their exposure to other known carcinogens.
Collapse
Affiliation(s)
- C Mahony
- The Procter & Gamble Co., Rusham Park Technical Centre, Egham, Surrey, UK.
| | | | | |
Collapse
|
20
|
Mahony C. Winter crisis. That time of year again. Nurs Times 2001; 97:10-1. [PMID: 11966105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
21
|
Mahony C. 3.5m pounds bonus pilot sparks fears of new wage divide. Nurs Times 2001; 97:5. [PMID: 11966127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
22
|
Mahony C. White students twice as likely to get nursing places. Nurs Times 2001; 97:5. [PMID: 11957722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
23
|
Mahony C. Watchdog's verdict: millions squandered, nurses neglected. Nurs Times 2001; 97:10-1. [PMID: 11957699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
24
|
Mahony C. Drug errors. Numberplate ID aims to reduce mistakes. Nurs Times 2001; 97:8. [PMID: 11957607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
25
|
Mahony C. Child mental health. An end to innocence. Nurs Times 2001; 97:11. [PMID: 11957578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
26
|
Mahony C. Air tube inquiry shifts focus to health staff. Nurs Times 2001; 97:5. [PMID: 11957664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
27
|
Mahony C. An everyday story of abuse. Nurs Times 2001; 97:12. [PMID: 11957641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
28
|
Mahony C. Vaccination. Nurse anxiety after GMC charges doctor over single-dose MMR jabs. Nurs Times 2001; 97:9. [PMID: 11957638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
29
|
Mahony C. Heart Hospital. Transferred nurses will be paid more than NHS staff. Nurs Times 2001; 97:7. [PMID: 11957635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
30
|
Mahony C. Public-private partnerships. Is health a private function? Nurs Times 2001; 97:10-1. [PMID: 11958048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
31
|
Mahony C. Home is where the harm is. Nurs Times 2001; 97:14. [PMID: 11954263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
32
|
Mahony C. General election. Just what the doctors ordered. Nurs Times 2001; 97:13. [PMID: 11954392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
33
|
Mahony C. HIV/AIDS. Cuts endangering lives. Nurs Times 2001; 97:6. [PMID: 11954185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
34
|
Coombes R, Mahony C. Care orders are 'unenforceable'. Nurs Times 2001; 97:4. [PMID: 11954509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
35
|
Mahony C. Pay award. Bumper Xmas predicted. Nurs Times 2000; 96:5. [PMID: 11965811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
36
|
Mahony C. It's beastly what they think of health visitors. Nurs Times 2000; 96:12-3. [PMID: 11968355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
37
|
Mahony C. US elections. Candidates talking, dead men walking. Nurs Times 2000; 96:12. [PMID: 11968385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
38
|
Mahony C. Health visiting. Identity crisis for HVs. Nurs Times 2000; 96:4-5. [PMID: 11968397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
39
|
Mahony C. Gay nurses fight pension rules. Nurs Times 2000; 96:7. [PMID: 11968429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
40
|
Mahony C. In your face. Nurs Times 2000; 96:28-30. [PMID: 11963007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
41
|
Mahony C. Careers focus. A flexible friend. Nurs Times 2000; 96:54-6. [PMID: 11963154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
42
|
Mahony C. Midwifery. Postnatal care scores low marks with parents. Nurs Times 2000; 96:13. [PMID: 11962910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
43
|
Mahony C. Section 28. A law for bullies. Nurs Times 2000; 96:12. [PMID: 11963055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
44
|
Mahony C. Forbidden love. Nurs Times 2000; 96:28-9. [PMID: 11962947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
45
|
Mahony C. All I want is a room somewhere. Nurs Times 2000; 96:26-9. [PMID: 11961770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
46
|
Mahony C. Protection racket. Nurs Times 2000; 96:30-1. [PMID: 11309938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
47
|
Mahony C. Workplace affairs. What happens when life imitates art? Nurs Times 2000; 96:10-1. [PMID: 11961739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
48
|
Mahony C. Sparks still fly. Nurs Times 2000; 96:34-5. [PMID: 11188663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
49
|
Mahony C. Handle with care. Nurs Times 2000; 96:24-6. [PMID: 11188615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
50
|
Mahony C. London calling. Nurs Times 2000; 96:16-7. [PMID: 11188612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|