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Najjar A, Gregoire S, Ouédraogo G, Schepky A, Hewitt N, Ellison C. CEC07-03 Towards internal threshold of toxicological concern (iTTC): Implementation of Pharmacokinetics (PK) in the safety assessment. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Feng F, Ning Y, Xue Y, Friedl V, Hann D, Gibb B, Bergamaschi A, Guler G, Hazen K, Scott A, Phillips T, McCarthy E, Ellison C, Malta R, Nguyen A, Lopez V, Cavet R, Chowdhury S, Volkmuth W, Levy S. 69MO 5-Hydroxymethycytosine analysis reveals stable epigenetic changes in tumor tissue that enable cfDNA cancer predictions. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Ellison C, Ella-Tongwiis P, Fon Hughes S. W018 The role of routine and novel biomarkers following flexible ureterorenoscopy for the treatment of kidney stones. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Blanchard M, Terrell A, Vegunta R, Powell S, Nowak R, Almquist D, Schmidt A, Bloch B, Shafique K, Geeraerts L, Nurkic S, Jensen A, Ellison C, Spanos W. EVOLVE: Evaluating the Safety of De-escalated Head and Neck Irradiation in HPV Positive Oropharynx Cancer in Non/Minimal Smokers. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2021.12.047] [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: 11/16/2022]
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Ellison C, Griffiths C, Thompson J, Arapi I, Martens M, Gore E. P40.07 Immunotherapy Toxicity in Lung Cancer & the Impact of Thoracic Radiation Therapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.444] [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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Tilby M, Escola C, Ellison C, Narramneni L, King M, Grumett S, Jain A. Trifluridine-tipiracil for the treatment of metastatic colorectal cancer patients: UK multicentre real-world experience. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Géniès C, Jamin EL, Debrauwer L, Zalko D, Person EN, Eilstein J, Grégoire S, Schepky A, Lange D, Ellison C, Roe A, Salhi S, Cubberley R, Hewitt NJ, Rothe H, Klaric M, Duplan H, Jacques-Jamin C. Comparison of the metabolism of 10 chemicals in human and pig skin explants. J Appl Toxicol 2018; 39:385-397. [PMID: 30345528 PMCID: PMC6587507 DOI: 10.1002/jat.3730] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 05/16/2018] [Revised: 08/13/2018] [Accepted: 08/22/2018] [Indexed: 01/24/2023]
Abstract
Skin metabolism is important to consider when assessing local toxicity and/or penetration of chemicals and their metabolites. If human skin supply is limited, pig skin can be used as an alternative. To identify any species differences, we have investigated the metabolism of 10 chemicals in a pig and human skin explant model. Phase I metabolic pathways in skin from both species included those known to occur via cytochrome P450s, esterases, alcohol dehydrogenases and aldehyde dehydrogenases. Common Phase II pathways were glucuronidation and sulfation but other conjugation pathways were also identified. Chemicals not metabolized by pig skin (caffeine, IQ and 4‐chloroaniline) were also not metabolized by human skin. Six chemicals metabolized by pig skin were metabolized to a similar extent (percentage parent remaining) by human skin. Human skin metabolites were also detected in pig skin incubations, except for one unidentified minor vanillin metabolite. Three cinnamyl alcohol metabolites were unique to pig skin but represented minor metabolites. There were notable species differences in the relative amounts of common metabolites. The difference in the abundance of the sulfate conjugates of resorcinol and 4‐amino‐3‐nitrophenol was in accordance with the known lack of aryl sulfotransferase activity in pigs. In conclusion, while qualitative comparisons of metabolic profiles were consistent between pig and human skin, there were some quantitative differences in the percentage of metabolites formed. This preliminary assessment suggests that pig skin is metabolically competent and could be a useful tool for evaluating potential first‐pass metabolism before testing in human‐derived tissues. We have investigated the metabolism of 10 chemicals in viable pig and human skin. Phase I and II metabolic pathways were present in skin from both species. Chemicals not metabolized by pig skin were also not metabolized by human skin. Six chemicals metabolized by pig skin were also metabolized to a similar extent by human skin. Pig and human skin produced common metabolites, although some species differences were observed and as their relative amounts differed.
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Affiliation(s)
- C Géniès
- Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | - E L Jamin
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - L Debrauwer
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - D Zalko
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - E N Person
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | | | | | | | - D Lange
- Beiersdorf AG, Hamburg, Germany
| | - C Ellison
- The Procter & Gamble Company, Cincinnati, OH, USA
| | - A Roe
- The Procter & Gamble Company, Cincinnati, OH, USA
| | | | | | | | | | - M Klaric
- Cosmetics Europe, Brussels, Belgium
| | - H Duplan
- Pierre Fabre Dermo-Cosmétique, Toulouse, France
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Grégoire S, Cubberley R, Duplan H, Eilstein J, Lange D, Hewitt N, Jacques-Jamin C, Klaric M, Rothe H, Ellison C, Vaillant O, Schepky A. Solvent Solubility Testing of Cosmetics-Relevant Chemicals: Methodology and Correlation of Water Solubility to In Silico Predictions. J SOLUTION CHEM 2017. [DOI: 10.1007/s10953-017-0652-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Moffatt-Bruce S, Ellison C, Anderson H, Balija T, Bernescu I, Cipolla J, Seamon M, Cook C, Steinberg S, Stawicki S. Intravascular Retained Surgical Items: A Multi-Center Study of Risk Factors. J Surg Res 2012. [DOI: 10.1016/j.jss.2011.11.476] [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: 11/30/2022]
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Tan-Wilhelm D, Witte K, Liu WY, Newman LS, Janssen A, Ellison C, Yancey A, Sanderson W, Henneberger PK. Impact of a worker notification program: assessment of attitudinal and behavioral outcomes. Am J Ind Med 2000; 37:205-13. [PMID: 10615101 DOI: 10.1002/(sici)1097-0274(200002)37:2<205::aid-ajim6>3.0.co;2-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Hundreds of worker notification programs are conducted each year to communicate occupational risks to workers. However, few attempts have been made to evaluate their effectiveness and few have described how communication theories are applied in developing notification messages. We developed and assessed the effectiveness of a worker notification program at a beryllium machining plant. METHODS We compared self-protective attitudinal and behavioral responses among workers in two plants: (1) an intervention plant that received beryllium risk notification and (2) a matched control plant that did not receive notification. RESULTS Workers receiving notification reported significantly stronger perceptions of threat and efficacy, more positive attitudes toward safety practices, and engaged in more protective behaviors than the workers at the control plant. CONCLUSIONS This study demonstrates the utility of applying communication theories in the development of notification messages and the results suggest that mass presentations may be just as effective, if not more so, than one-on-one notifications. Am. J. Ind. Med. 37:205-213, 2000. Published 2000 Wiley-Liss, Inc.
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Affiliation(s)
- D Tan-Wilhelm
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA.
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Ellison C, Gartner J. Acute, lethal graft-versus-host disease in an F1-hybrid model using grafts from parental-strain, T-cell receptor-delta gene knockout donors. Scand J Immunol 1998; 48:272-6. [PMID: 9743212 DOI: 10.1046/j.1365-3083.1998.00402.x] [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] [Indexed: 11/20/2022]
Abstract
Gammadelta T cells have been implicated in the pathogenesis of acute graft-versus-host disease (GVHD). We therefore performed experiments to determine whether mortality from GVHD is reduced in C57BL/6 x DBA/2 F1-hybrid (BDF1-hybrid) mice when parental strain, T-cell receptor-delta (TCRdelta) knockout (KO) donors are used. We compared mortality, weight loss, interferon-gamma (IFN-gamma) production and cytotoxic activity in recipients of either wild-type or TCRdelta KO grafts. In both groups there was significant weight loss and an identical level of mortality. Elevated IFN-gamma levels were present in both groups, but recipients of TCRdelta KO grafts produced twice as much as recipients of wild-type grafts. Elevated natural killer (NK) and NK-like activity was also seen in both. These results demonstrate that TCRdelta KO grafts can induce GVHD as severe as that seen in recipients of wild-type grafts, a finding that is at odds with studies demonstrating reduced mortality when gammadelta T cells are purged from donor mice. We suggest that the inconsistency may lie in the higher levels of IFN-gamma seen with TCRdelta KO grafts and that the protection afforded by the absence of gammadelta T cells in the graft is overwhelmed by the higher levels of IFN-gamma.
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Affiliation(s)
- C Ellison
- Department of Immunology, University of Manitoba, Winnipeg, Canada
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De Anda J, Dolan TC, Lee-Eddie D, Ellison C, Honkawa Y. A race/ethnic comparison of career attainment in healthcare management. Healthc Exec 1998; 13:28-33. [PMID: 10178560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- J De Anda
- Association of Hispanic Healthcare Executives, USA
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Beyer-Mears A, Diecke FP, Mistry K, Ellison C, Cruz E. Effect of pyruvate on lens myo-inositol transport and polyol formation in diabetic cataract. Pharmacology 1997; 55:78-86. [PMID: 9323307 DOI: 10.1159/000139515] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In diabetic cataract, sorbitol pathway flux perturbs intracellular metabolism by two putative mechanisms. The osmolyte hypothesis implicates the aldose reductase enzyme, increased rate of reduction of glucose of sorbitol and reciprocal osmoregulatory depletion of organic osmolytes (myo-inositol). Redox hypothesis favors alterations in the ratios (NADP+/NADPH and/or NADH/NAD+ as the primary cause of glucose-induced aldose reductase related defects. Increase in NADH/NAD+ promotes increased oxidation of sorbitol to fructose by polyol dehydrogenase; potential normalization of this ratio by coadministration of pyruvate (which reoxidizes NADH to NAD+ via lactate dehydrogenases reaction) was investigated. Effects of exogenous pyruvate on lens polyol formation and sodium-dependent myo-inositol (MI) cotransporter using two in vitro models of sugar cataract were determined. Rat lenses were incubated for 16 h in either normal (5.5 mM) or high sugar medium, 35.5 mM glucose or 30 mM galactose. Then lens MI influx was compared to polyol, MI and fructose content. Pyruvate did not affect MI influx or sorbitol content in lenses incubated in control medium. In 35.5 mM glucose, coadministration of pyruvate maintained lens MI influx at 76% of control values vs. 43% for lenses without pyruvate. Furthermore, pyruvate treatment diminished lens sorbitol content by 50% and increased lens sugar content (myo-inositol, fructose, lactate) and media lactate levels. Lenses incubated in high galactose medium formed galactitol with a corresponding decreased MI content. Coadministration of pyruvate had no effect on either lens sugar content (galactitol, myo-inositol, fructose) or MI influx, consistent with the fact that galactitol was not metabolized to fructose. In conclusion, pyruvate did not exert a direct effect on the MI co-transporter or prevent galactitol inhibition of MI influx. Coadministration of pyruvate with high glucose altered lens metabolism and promoted reduction of pyruvate to lactate, increased fructose, decreased sorbitol, enhanced MI influx, maintained lens MI content, implicating both osmotic and redox systems.
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Affiliation(s)
- A Beyer-Mears
- Department of Pharmacology and Physiology, UMDNJ, New Jersey Medical School, Newark 07103-2714, USA
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HayGlass KT, Wang M, Gieni RS, Ellison C, Gartner J. In vivo direction of CD4 T cells to Th1 and Th2-like patterns of cytokine synthesis. Adv Exp Med Biol 1996; 409:309-16. [PMID: 9095259 DOI: 10.1007/978-1-4615-5855-2_44] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Factors that influence the initial development, and continued maintenance, of Th1 or Th2-like responses in vivo play a pivotal role in determining immune effector mechanisms and clinical outcome. Here, we review recent developments in this area with particular emphasis on (i) the ability of chemically modified exogenous antigens to preferentially activate Th1-dominated responses in vivo and (ii) the role played by NK cells in initial commitment of naive exogenous antigen-specific T cells to Th1 or Th2-like cytokine synthesis. We find that NK cell depletion of naive mice prior to immunization with OVA (which induces balanced Th0 like responses), or a high Mr polymer (that preferentially elicits OVA-specific Th1-dominated responses), fails to influence the development of cytokine or specific antibody responses. The results argue that NK cells do not play an essential role in shaping induction of immune responses to exogenous antigens, the most common class of inhalant allergen.
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Affiliation(s)
- K T HayGlass
- Department of Immunology, University of Manitoba Winnipeg, Canada
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Abstract
Bacterial meningitis is a major cause of morbidity and mortality in Arizona infants and children. A retrospective review of 102 cases of meningitis occurring in the American Indian population documents the prevalence of the Haemophilus influenzae organism with a peak incidence in the first year of life. The rate of H influenzae resistance to ampicillin was 16%. Overall morbidity and mortality rates are comparable with reviews of diverse populations, but there is an exceptional mortality and prolonged hospitalization in patients less than 1 year of age. The development of an efficacious vaccine against H influenzae may substantially reduce and prevent this cause of meningitis.
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Hodgman T, Dasta JF, Armstrong DK, Crist KD, Ellison C. Tobramycin disposition into ascitic fluid. Clin Pharm 1984; 3:203-5. [PMID: 6723232] [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: 01/21/2023]
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Catalano PW, Martin EW, Ellison C, Carey LC. Reasonable surgical treatment for tumors of the liver associated with the use of oral contraceptives. Surg Gynecol Obstet 1979; 148:759-63. [PMID: 219554] [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: 12/13/2022]
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Good WO, Ellison C, Archer VE. Sputum cytology among frequent users of pressurized spray cans. Cancer Res 1975; 35:316-21. [PMID: 1109799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Sputum samples were collected from a group of private patients who had no respiratory symptoms but who frequently used aerosols generated by pressurized cans, and from two groups of controls. Atypical metaplastic changes in exfoliated cells were compared between the groups. An excess of moderate and marked atypical metaplastic cells was found among the frequent aerosol users. This association, which suggests that some aerosol preparations either alter the flora of the bronchial tree or contain carcinogenic agents, strongly suggests that additional studies be done on aerosol can ingredients, and that these sprays be used in a manner to minimize inhalation of the resultant aerosol, except for medical preparations where proper control is exercised.
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Ellison C. Social Factors and Medical Ethics. West J Med 1972. [DOI: 10.1136/bmj.1.5800.627-a] [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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