Larry Claxton

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Umbuzeiro Gisela A; Franco Alexandre; Martins Maria Helena; Kummrow Fábio; Carvalho Lilian; Schmeiser Heinz H; Leykauf Jutta; Stiborova Marie; Claxton Larry D
Mutagenicity and DNA adduct formation of PAH, nitro-PAH, and oxy-PAH fractions of atmospheric particulate matter from São Paulo, Brazil.
Claxton Larry D; Pegram Rex; Schenck Kathleen M; Simmons Jane Ellen; Warren Sarah H
Integrated disinfection by-products research: salmonella mutagenicity of water concentrates disinfected by chlorination and ozonation/postchlorination.
Claxton L D
A review of conflict of interest, competing interest, and bias for toxicologists.

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2008: Umbuzeiro Gisela A; Franco Alexandre; Martins Maria Helena; Kummrow Fábio; Carvalho Lilian; Schmeiser Heinz H; Leykauf Jutta; Stiborova Marie; Claxton Larry D
Mutagenicity and DNA adduct formation of PAH, nitro-PAH, and oxy-PAH fractions of atmospheric particulate matter from São Paulo, Brazil.
Mutation research 2008;652(1):72-80.
2008: Claxton Larry D; Pegram Rex; Schenck Kathleen M; Simmons Jane Ellen; Warren Sarah H
Integrated disinfection by-products research: salmonella mutagenicity of water concentrates disinfected by chlorination and ozonation/postchlorination.
Journal of toxicology and environmental health. Part A 2008;71(17):1187-94.
2007: Claxton L D
A review of conflict of interest, competing interest, and bias for toxicologists.
Toxicology and industrial health 2007;23(10):557-71.
2007: Claxton Larry D; Woodall George M
A review of the mutagenicity and rodent carcinogenicity of ambient air.
Mutation research 2007;636(1-3):36-94.
2006: Oliveira Danielle P; Carneiro Patrícia A; Rech Célia M; Zanoni Maria Valnice B; Claxton Larry D; Umbuzeiro Gisela A
Mutagenic compounds generated from the chlorination of disperse azo-dyes and their presence in drinking water.
Environmental science & technology 2006;40(21):6682-9.
2006: Umbuzeiro Gisela de Aragão; Warren Sarah H; Claxton Larry D
The mutation spectra of chlorinated drinking water samples using the base-specific TA7000 strains of Salmonella in the microsuspension assay.
Mutation research 2006;609(1):26-33.
2006: DeMarini D M; Claxton L D
Outdoor air pollution and DNA damage.
Occupational and environmental medicine 2006;63(4):227-9.
2006: Bae Jin-Seok; Freeman Harold S; Warren Sarah H; Claxton Larry D
Evaluation of new 2,2'-dimethyl-5,5'-dipropoxybenzidine- and 3,3'-dipropoxybenzidine-based direct dye analogs for mutagenic activity by use of the Salmonella/mammalian mutagenicity assay.
Mutation research 2006;603(2):173-85.
2006: Chung King-Thom; Chen Ssu-Ching; Claxton Larry D
Review of the Salmonella typhimurium mutagenicity of benzidine, benzidine analogues, and benzidine-based dyes.
Mutation research 2006;612(1):58-76.
2005: Donnelly Kirby C; Huebner Henry J; Claxton Larry D; Calvin James A; Vos Gordon A; Cizmas Leslie; He Ling-Yu
Biodegradation of simple chemical mixtures in soil.
Environmental toxicology and chemistry / SETAC 2005;24(11):2839-45.
2005: de Aragão Umbuzeiro Gisela; Freeman Harold S; Warren Sarah H; de Oliveira Danielle Palma; Terao Yoshiyasu; Watanabe Tetsushi; Claxton Larry D
The contribution of azo dyes to the mutagenic activity of the Cristais River.
Chemosphere 2005;60(1):55-64.
2005: Claxton Larry D
Scientific authorship. Part 2. History, recurring issues, practices, and guidelines.
Mutation research 2005;589(1):31-45.
2005: Claxton Larry D
Scientific authorship. Part 1. A window into scientific fraud?
Mutation research 2005;589(1):17-30.
2005: de Aragão Umbuzeiro Gisela; Freeman Harold; Warren Sarah H; Kummrow Fabio; Claxton Larry D
Mutagenicity evaluation of the commercial product CI Disperse Blue 291 using different protocols of the Salmonella assay.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2005;43(1):49-56.
2004: Claxton Larry D; Matthews Peggy P; Warren Sarah H
The genotoxicity of ambient outdoor air, a review: Salmonella mutagenicity.
Mutation research 2004;567(2-3):347-99.
2004: White Paul A; Claxton Larry D
Mutagens in contaminated soil: a review.
Mutation research 2004;567(2-3):227-345.
2004: Umbuzeiro Gisela de Aragão; Roubicek Deborah A; Rech Célia Maria; Sato Maria Inês Z; Claxton Larry D
Investigating the sources of the mutagenic activity found in a river using the Salmonella assay and different water extraction procedures.
Chemosphere 2004;54(11):1589-97.
2004: Edwards Laura C; Freeman Harold S; Claxton Larry D
Developing azo and formazan dyes based on environmental considerations: Salmonella mutagenicity.
Mutation research 2004;546(1-2):17-28.
2001: Claxton L D; Hughes T J; Chung K T
Using base-specific Salmonella tester strains to characterize the types of mutation induced by benzidine and benzidine congeners after reductive metabolism.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2001;39(12):1253-61.
2001: Washburn K S; Donnelly K C; Huebner H J; Burghardt R C; Sewall T C; Claxton L D
A study of 2,4,6-trinitrotoluene inhibition of benzo[a]pyrene uptake and activation in a microbial mutagenicity assay.
Chemosphere 2001;44(8):1703-9.
2001: Claxton L D; Warren S; Zweidinger R; Creason J
A comparative assessment of Boise, Idaho, ambient air fine particle samples using the plate and microsuspension Salmonella mutagenicity assays.
The Science of the total environment 2001;275(1-3):95-108.
2001: Claxton L D; Houk V S; Warren S
Methods for the spiral Salmonella mutagenicity assay including specialized applications.
Mutation research 2001;488(3):241-57.
2000: DeMarini D M; Shelton M L; Kohan M J; Hudgens E E; Kleindienst T E; Ball L M; Walsh D; de Boer J G; Lewis-Bevan L; Rabinowitz J R; Claxton L D; Lewtas J
Mutagenicity in lung of big Blue((R)) mice and induction of tandem-base substitutions in Salmonella by the air pollutant peroxyacetyl nitrate (PAN): predicted formation of intrastrand cross-links.
Mutation research 2000;457(1-2):41-55.
2000: Chung K; Hughes T J; Claxton L D
Comparison of the mutagenic specificity induced by four nitro-group-containing aromatic amines in Salmonella typhimurium his genes.
Mutation research 2000;465(1-2):165-71.
1998: Brooks L R; Hughes T J; Claxton L D; Austern B; Brenner R; Kremer F
Bioassay-directed fractionation and chemical identification of mutagens in bioremediated soils.
Environmental health perspectives 1998;106 Suppl 6():1435-40.
1998: Hughes T J; Claxton L D; Brooks L; Warren S; Brenner R; Kremer F
Genotoxicity of bioremediated soils from the Reilly Tar site, St. Louis Park, Minnesota.
Environmental health perspectives 1998;106 Suppl 6():1427-33.
1998: Donnelly K C; Claxton L D; Huebner H J; Capizzi J L
Mutagenic interactions of model chemical mixtures.
Chemosphere 1998;37(7):1253-61.
1998: Carroquino M J; Galson S K; Licht J; Amler R W; Perera F P; Claxton L D; Landrigan P J
The U.S. EPA Conference on Preventable Causes of Cancer in Children: a research agenda.
Environmental health perspectives 1998;106 Suppl 3():867-73.
1998: Claxton L D; Houk V S; Hughes T J
Genotoxicity of industrial wastes and effluents.
Mutation research 1998;410(3):237-43.
1997: de Pollok F S; Aneja V P; Hughes T J; Claxton L D
Chemical and mutagenic analysis of volatile organic compounds in Raleigh air samples at three different elevations before, during, and after Hurricane Gordon.
Chemosphere 1997;35(4):879-93.
1997: Hughes T J; Lewtas J; Claxton L D
Development of a standard reference material for diesel mutagenicity in the Salmonella plate incorporation assay.
Mutation research 1997;391(3):243-58.
1997: Pegram R A; Andersen M E; Warren S H; Ross T M; Claxton L D
Glutathione S-transferase-mediated mutagenicity of trihalomethanes in Salmonella typhimurium: contrasting results with bromodichloromethane off chloroform.
Toxicology and applied pharmacology 1997;144(1):183-8.
1997: Zhou X; George S E; Frank D W; Utley M; Gilmour I; Krogfelt K A; Claxton L D; Laux D C; Cohen P S
Isolation and characterization of an attenuated strain of Pseudomonas aeruginosa AC869, a 3,5-dichlorobenzoate degrader.
Applied and environmental microbiology 1997;63(4):1389-95.
1996: Rudd L E; Perry J J; Houk V S; Williams R W; Claxton L D
Changes in mutagenicity during crude oil degradation by fungi.
Biodegradation 1996;7(4):335-43.
1995: Claxton L D; Creason J; Nader J A; Poteat W; Orr J D
GeneTox manager for bacterial mutagenicity assays: a personal computer and minicomputer system.
Mutation research 1995;342(1-2):87-94.
1993: George S E; Kohan M J; Gilmour M I; Taylor M S; Brooks H G; Creason J P; Claxton L D
Pulmonary clearance and inflammatory response in C3H/HeJ mice after intranasal exposure to Pseudomonas spp.
Applied and environmental microbiology 1993;59(11):3585-91.
1993: Lewtas J; Claxton L; Mumford J; Lofroth G
Bioassay of complex mixtures of indoor air pollutants.
IARC scientific publications 1993;(109):85-95.
1993: Andon B; Claxton L; Goto S; Lewtas J
Analysis of mutagens by the microsuspension forward-mutation assay in Salmonella typhimurium strain TM677.
IARC scientific publications 1993;(109):307-13.
1992: Claxton L D; Douglas G; Krewski D; Lewtas J; Matsushita H; Rosenkranz H
Overview, conclusions, and recommendations of the IPCS collaborative study on complex mixtures.
Mutation research 1992;276(1-2):61-80.
1992: Krewski D; Leroux B G; Creason J; Claxton L
Sources of variation in the mutagenic potency of complex chemical mixtures based on the Salmonella/microsome assay.
Mutation research 1992;276(1-2):33-59.
1992: Lewtas J; Claxton L D; Rosenkranz H S; Schuetzle D; Shelby M; Matsushita H; Würgler F E; Zimmermann F K; Löfroth G; May W E
Design and implementation of a collaborative study of the mutagenicity of complex mixtures in Salmonella typhimurium.
Mutation research 1992;276(1-2):3-9.
1992: Claxton L D; Creason J; Leroux B; Agurell E; Bagley S; Bryant D W; Courtois Y A; Douglas G; Clare C B; Goto S
Results of the IPCS collaborative study on complex mixtures.
Mutation research 1992;276(1-2):23-32.
1992: Houk V S; Goto S; Endo O; Claxton L D; Lewtas J; Matsushita H
Detection of direct-acting mutagens in ambient air: a comparison of two highly sensitive mutagenicity assays.
Environmental and molecular mutagenesis 1992;20(1):19-28.
1992: Chadwick R W; George S E; Claxton L D
Role of the gastrointestinal mucosa and microflora in the bioactivation of dietary and environmental mutagens or carcinogens.
Drug metabolism reviews 1992;24(4):425-92.
1991: Claxton L D; Houk V S; Warner J R; Myers L E; Hughes T J
Assessing the use of known mutagens to calibrate the Salmonella typhimurium mutagenicity assay: II. With exogenous activation.
Mutation research 1991;253(2):149-59.
1991: Claxton L D; Houk V S; Monteith L G; Myers L E; Hughes T J
Assessing the use of known mutagens to calibrate the Salmonella typhimurium mutagenicity assay: I. Without exogenous activation.
Mutation research 1991;253(2):137-47.
1991: Claxton L D; Houk V S; Allison J C; Creason J
Evaluating the relationship of metabolic activation system concentrations and chemical dose concentrations for the Salmonella spiral and plate assays.
Mutation research 1991;253(2):127-36.
1991: George S E; Kohan M J; Whitehouse D A; Creason J P; Kawanishi C Y; Sherwood R L; Claxton L D
Distribution, clearance, and mortality of environmental pseudomonads in mice upon intranasal exposure.
Applied and environmental microbiology 1991;57(8):2420-5.
1991: Houk V S; Early G; Claxton L D
Use of the spiral Salmonella assay to detect the mutagenicity of complex environmental mixtures.
Environmental and molecular mutagenesis 1991;17(2):112-21.
1990: King L C; Kohan M J; George S E; Lewtas J; Claxton L D
Metabolism of 1-nitropyrene by human, rat, and mouse intestinal flora: mutagenicity of isolated metabolites by direct analysis of HPLC fractions with a microsuspension reverse mutation assay.
Journal of toxicology and environmental health 1990;31(3):179-92.
1990: George S E; Kohan M J; Whitehouse D A; Creason J P; Claxton L D
Influence of antibiotics on intestinal tract survival and translocation of environmental Pseudomonas species.
Applied and environmental microbiology 1990;56(6):1559-64.
1990: Alvord W G; Driver J H; Claxton L; Creason J P
Methods for comparing Salmonella mutagenicity data sets using nonlinear models.
Mutation research 1990;240(3):177-94.
1990: Esancy J F; Freeman H S; Claxton L D
The effect of alkoxy substituents on the mutagenicity of some phenylenediamine-based disazo dyes.
Mutation research 1990;238(1):23-38.
1990: Esancy J F; Freeman H S; Claxton L D
The effect of alkoxy substituents on the mutagenicity of some aminoazobenzene dyes and their reductive-cleavage products.
Mutation research 1990;238(1):1-22.
1990: Williams R W; Watts R; Inmon J; Pasley T; Claxton L
Stability of the mutagenicity in stored cigarette smokers' urine and extract.
Environmental and molecular mutagenesis 1990;16(4):246-9.
1990: Waters M D; Claxton L D; Stack H F; Graedel T E
Genetic activity profiles--application in assessing potential carcinogenicity of complex environmental mixtures.
IARC scientific publications 1990;(104):75-88.
1990: Kleindienst T E; Shepson P B; Smith D F; Hudgens E E; Nero C M; Cupitt L T; Bufalini J J; Claxton L D
Comparison of mutagenic activities of several peroxyacyl nitrates.
Environmental and molecular mutagenesis 1990;16(2):70-80.
1990: Claxton L D; Walsh D B; Esancy J F; Freeman H S
Structure activity analysis of azo dyes and related compounds.
Progress in clinical and biological research 1990;340B():11-22.
1990: Waters M D; Claxton L D; Stack H F; Brady A L; Graedel T E
Genetic activity profiles in the testing and evaluation of chemical mixtures.
Teratogenesis, carcinogenesis, and mutagenesis 1990;10(2):147-64.
1989: George S E; Walsh D B; Stead A G; Claxton L D
Effect of ampicillin-induced alterations in murine intestinal microbiota on the survival and competition of environmentally released pseudomonads.
Fundamental and applied toxicology : official journal of the Society of Toxicology 1989;13(4):670-80.
1989: Houk V S; Schalkowsky S; Claxton L D
Development and validation of the spiral Salmonella assay: an automated approach to bacterial mutagenicity testing.
Mutation research 1989;223(1):49-64.
1989: Claxton L D; Morin R S; Hughes T J; Lewtas J
A genotoxic assessment of environmental tobacco smoke using bacterial bioassays.
Mutation research 1989;222(2):81-99.
1989: Williams R W; Pasley T; Watts R; Inmon J; Fitzgerald J; Claxton L
Comparative yields of mutagens from cigarette smokers' urine obtained by using solid-phase extraction techniques.
Environmental and molecular mutagenesis 1989;14(1):20-6.
1989: George S E; Kohan M J; Walsh D B; Stead A G; Claxton L D
Polychlorinated biphenyl-degrading pseudomonads: survival in mouse intestines and competition with normal flora.
Journal of toxicology and environmental health 1989;26(1):19-37.
1988: Claxton L D; Stead A G; Walsh D
An analysis by chemical class of Salmonella mutagenicity tests as predictors of animal carcinogenicity.
Mutation research 1988;205(1-4):197-225.
1988: George S E; Claxton L D
Biotransformation of chlordecone by Pseudomonas species.
Xenobiotica; the fate of foreign compounds in biological systems 1988;18(4):407-16.
1988: Moore M M; Allen J W; Claxton L; Doerr C; Gwaltney C; Dutcher J S; Kohan M; Lawrence B K; Templeton R; Westbrook-Collins B
Mutagenic screening of marker grenade dyes by the Salmonella reversion assay, L5178Y/TK+/- mouse lymphoma assay, and in vivo sister chromatid exchange analysis in mice.
Environmental and molecular mutagenesis 1988;12(2):219-33.
1987: Morin R S; Tulis J J; Claxton L D
The effect of solvent and extraction methods on the bacterial mutagenicity of sidestream cigarette smoke.
Toxicology letters 1987;38(3):279-90.
1987: Claxton L D; Allen J; Auletta A; Mortelmans K; Nestmann E; Zeiger E
Guide for the Salmonella typhimurium/mammalian microsome tests for bacterial mutagenicity.
Mutation research 1987;189(2):83-91.
1987: Myers L E; Adams N H; Hughes T J; Williams L R; Claxton L D
An interlaboratory study of an EPA/Ames/Salmonella test protocol.
Mutation research 1987;182(3):121-33.
1987: Walsh D B; Claxton L D
Computer-assisted structure-activity relationships of nitrogenous cyclic compounds tested in salmonella assays for mutagenicity.
Mutation research 1987;182(2):55-64.
1987: Claxton L D; Dearfield K L; Spanggord R J; Riccio E S; Mortelmans K
Comparative mutagenicity of halogenated pyridines in the Salmonella typhimurium/mammalian microsome test.
Mutation research 1987;176(2):185-98.
1987: Hughes T J; Simmons D M; Monteith L G; Claxton L D
Vaporization technique to measure mutagenic activity of volatiles organic chemicals in the Ames/Salmonella assay.
Environmental mutagenesis 1987;9(4):421-41.
1986: Houk V S; Claxton L D
Screening complex hazardous wastes for mutagenic activity using a modified version of the TLC/Salmonella assay.
Mutation research 1986;169(3):81-92.
1985: Kleindienst T E; Shepson P B; Edney E O; Claxton L D
Peroxyacetyl nitrate: measurement of its mutagenic activity using the Salmonella/mammalian microsome reversion assay.
Mutation research 1985;157(2-3):123-8.
1985: Austin A C; Claxton L D; Lewtas J
Mutagenicity of the fractionated organic emissions from diesel, cigarette smoke condensate, coke oven, and roofing tar in the Ames assay.
Environmental mutagenesis 1985;7(4):471-87.
1984: Ball L M; Kohan M J; Inmon J P; Claxton L D; Lewtas J
Metabolism of 1-nitro[14C]pyrene in vivo in the rat and mutagenicity of urinary metabolites.
Carcinogenesis 1984;5(12):1557-64.
1984: Ball L M; Kohan M J; Claxton L D; Lewtas J
Mutagenicity of derivatives and metabolites of 1-nitropyrene: activation by rat liver S9 and bacterial enzymes.
Mutation research 1984;138(2-3):113-25.
1984: Nesnow S; Leavitt S; Easterling R; Watts R; Toney S H; Claxton L; Sangaiah R; Toney G E; Wiley J; Fraher P
Mutagenicity of cyclopenta-fused isomers of benz(a)anthracene in bacterial and rodent cells and identification of the major rat liver microsomal metabolites.
Cancer research 1984;44(11):4993-5003.
1984: Claxton L D; Toney S; Perry E; King L
Assessing the effect of colony counting methods and genetic drift on Ames bioassay results.
Environmental mutagenesis 1984;6(3):331-42.
1983: Kohan M; Claxton L
Mutagenicity of diesel-exhaust particle extract, 1-nitropyrene, and 2,7-dinitrofluorenone in Salmonella typhimurium under various metabolic activation conditions.
Mutation research 1983;124(3-4):191-200.
1983: Sangaiah R; Gold A; Toney G E; Toney S H; Claxton L; Easterling R; Nesnow S
Benz[j]aceanthrylene: a novel polycyclic aromatic hydrocarbon with bacterial mutagenic activity.
Mutation research 1983;119(3):259-66.
1983: Claxton L D
Characterization of automotive emissions by bacterial mutagenesis bioassay: a review.
Environmental mutagenesis 1983;5(4):609-31.
1982: Claxton L D
The utility of bacterial mutagenesis testing in the characterization of mobile source emissions: a review.
Developments in toxicology and environmental science 1982;10():69-82.
1981: Claxton L D; Barnes H M
The mutagenicity of diesel-exhaust particle extracts collected under smog-chamber conditions using the Salmonella typhimurium test system.
Mutation research 1981;88(3):255-72.
1981: Stead A G; Hasselblad V; Creason J P; Claxton L
Modeling the Ames test.
Mutation research 1981;85(1):13-27.
1981: King L C; Kohan M J; Austin A C; Claxton L D; Huisingh J L
Evaluation of the release of mutagens from diesel particles in the presence of physiological fluids.
Environmental mutagenesis 1981;3(2):109-21.

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Larry Claxton

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