Joseph G. Shaddock
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Also affiliated: Leiden University (1994); United States Food and Drug Administration (1981–2025)
Research Areas
Biomedical Subjects
Biography and Research Information
OverviewAI-generated summary
Joseph G. Shaddock's research focuses on investigating mutagenicity and genotoxicity. He studies mutation detection in the Hprt and Pig-a genes of rat lymphocytes, and has published work differentiating micronucleus dose-responses induced by whole cigarette smoke solutions. Shaddock's scholarship metrics include an h-index of 25, with 66 total publications and 1,610 total citations. He is designated as a highly cited researcher. His key collaborators at the National Center for Toxicological Research include Roberta A. Mittelstaedt and Robert H. Heflich, with whom he has co-authored multiple publications.
Metrics
- h-index: 25
- Publications: 66
- Citations: 1,624
Selected Publications
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Detection of In Vivo Mutation in the Hprt and Pig-a Genes of Rat Lymphocytes (2025)
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Differentiating between micronucleus dose-responses induced by whole cigarette smoke solutions with Benchmark Dose potency ranking (2021)
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Analysis of In Vivo Mutation in the Hprt and Tk Genes of Mouse Lymphocytes (2020)
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Detection of In Vivo Mutation in the Hprt and Pig-a Genes of Rat Lymphocytes (2019)
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Analysis of In Vivo Mutation in the Hprt and Tk Genes of Mouse Lymphocytes (2014)
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Detection of In Vivo Mutation in the Hprt and Pig-a Genes of Rat Lymphocytes (2013)
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Sensitivity of the Pig-a assay for detecting gene mutation in rats exposed acutely to strong clastogens (2013)
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Nitroxide TEMPO: A genotoxic and oxidative stress inducer in cultured cells (2013)
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Evaluating the weak in vivo micronucleus response of a genotoxic carcinogen, Aristolochic acids (2013)
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In vivo genotoxicity of furan in F344 rats at cancer bioassay doses (2012)
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Analysis of mutations in the Pig‐a gene of spleen T‐cells from N‐ethyl‐N‐nitrosourea‐treated fisher 344 rats (2011)
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Comparative analysis of micronuclei and DNA damage induced by Ochratoxin A in two mammalian cell lines (2011)
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Report on stage III Pig‐a mutation assays using N‐ethyl‐N‐nitrosourea – comparison with other in vivo genotoxicity endpoints (2011)
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Report on stage IIIPig‐amutation assays using benzo[a]pyrene (2011)
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Genotoxicity of furan in Big Blue rats (2011)
Collaboration Network
Top Collaborators
- Genotoxicity of malachite green and leucomalachite green in female Big Blue B6C3F1 mice
- In vivo genotoxicity of furan in F344 rats at cancer bioassay doses
- Genotoxicity of furan in Big Blue rats
- Comparative analysis of micronuclei and DNA damage induced by Ochratoxin A in two mammalian cell lines
- DNA adduct formation and induction of micronuclei and mutations in B6C3F1/Tk mice treated neonatally with acrylamide or glycidamide
Showing 5 of 28 shared publications
- The binding of N-hydroxy-2-acetylaminofluorene to DNA and repair of the adducts in primary rat hepatocyte cultures
- A study of the potential genotoxicity of methapyrilene and related antihistamines using the hepatocytes/DNA repair assay
- Induction of stress proteins by electromagnetic fields in cultured HL-60 cells
- Potential chemoprotective effects of the coffee components kahweol and cafestol palmitates via modification of hepatic N‐acetyltransferase and glutathione S‐transferase activities
- Detoxification of carcinogenic aromatic and heterocyclic amines by enzymatic reduction of the N-hydroxy derivative
Showing 5 of 26 shared publications
- Genotoxicity of malachite green and leucomalachite green in female Big Blue B6C3F1 mice
- Genotoxicity of furan in Big Blue rats
- Report on stage III Pig‐a mutation assays using N‐ethyl‐N‐nitrosourea – comparison with other in vivo genotoxicity endpoints
- Report on stage IIIPig‐amutation assays using benzo[a]pyrene
- Evaluation of Macaca mulatta as a model for genotoxicity studies
Showing 5 of 26 shared publications
- Genotoxicity of malachite green and leucomalachite green in female Big Blue B6C3F1 mice
- In vivo genotoxicity of furan in F344 rats at cancer bioassay doses
- Genotoxicity of furan in Big Blue rats
- Comparative analysis of micronuclei and DNA damage induced by Ochratoxin A in two mammalian cell lines
- Nitroxide TEMPO: A genotoxic and oxidative stress inducer in cultured cells
Showing 5 of 16 shared publications
- Effects of aging and caloric restriction on the genotoxicity of four carcinogens in the in vitro rat hepatocyte/DNA repair assay
- Modifications in Regulation of Intermediary Metabolism by Caloric Restriction in Rodents
- Genotoxicity of tacrine in primary hepatocytes isolated from B6C3F1 mice and aged ad libitum and calorie restricted Fischer 344 rats
- p53 synthesis and phosphorylation in the aging diet-restricted rat following retinoic acid administration
- A circadian study of liver antioxidant enzyme systems of female Fischer-344 rats subjected to dietary restriction for six weeks.
Showing 5 of 7 shared publications
- Genotoxicity of malachite green and leucomalachite green in female Big Blue B6C3F1 mice
- In vivo genotoxicity of furan in F344 rats at cancer bioassay doses
- Evaluation of Macaca mulatta as a model for genotoxicity studies
- Pharmacokinetics, dose‐range, and mutagenicity studies of methylphenidate hydrochloride in B6C3F1 mice
- The genetic toxicology of methylphenidate hydrochloride in non-human primates
Showing 5 of 7 shared publications
- In vivo genotoxicity of furan in F344 rats at cancer bioassay doses
- Genotoxicity of furan in Big Blue rats
- DNA adduct formation and induction of micronuclei and mutations in B6C3F1/Tk mice treated neonatally with acrylamide or glycidamide
- Pharmacokinetics, dose‐range, and mutagenicity studies of methylphenidate hydrochloride in B6C3F1 mice
- The genetic toxicology of methylphenidate hydrochloride in non-human primates
Showing 5 of 6 shared publications
- In vivo genotoxicity of furan in F344 rats at cancer bioassay doses
- Evaluation of Macaca mulatta as a model for genotoxicity studies
- Molecular analysis of lacI mutations in Rat2TM cells exposed to 7,12-dimethylbenz[a]anthracene: evidence for DNA sequence and DNA strand biases for mutation
- Pharmacokinetics, dose‐range, and mutagenicity studies of methylphenidate hydrochloride in B6C3F1 mice
- The genetic toxicology of methylphenidate hydrochloride in non-human primates
Showing 5 of 6 shared publications
- Comparative analysis of micronuclei and DNA damage induced by Ochratoxin A in two mammalian cell lines
- Report on stage III Pig‐a mutation assays using N‐ethyl‐N‐nitrosourea – comparison with other in vivo genotoxicity endpoints
- Report on stage IIIPig‐amutation assays using benzo[a]pyrene
- Sensitivity of the Pig-a assay for detecting gene mutation in rats exposed acutely to strong clastogens
- Evaluating the weak in vivo micronucleus response of a genotoxic carcinogen, Aristolochic acids
Showing 5 of 6 shared publications
- Genotoxicity of malachite green and leucomalachite green in female Big Blue B6C3F1 mice
- The binding of N-hydroxy-2-acetylaminofluorene to DNA and repair of the adducts in primary rat hepatocyte cultures
- DNA adduct formation and induction of micronuclei and mutations in B6C3F1/Tk mice treated neonatally with acrylamide or glycidamide
- Transplacental drug transfer and frequency of Tk and Hprt lymphocyte mutants and peripheral blood micronuclei in mice treated transplacentally with zidovudine and lamivudine
- Analysis of mutations in the Tk gene of Tk+/− mice treated as neonates with 3′-azido-3′-deoxythymidine (AZT)
- In vivo genotoxicity of furan in F344 rats at cancer bioassay doses
- Report on stage III Pig‐a mutation assays using N‐ethyl‐N‐nitrosourea – comparison with other in vivo genotoxicity endpoints
- Report on stage IIIPig‐amutation assays using benzo[a]pyrene
- Sensitivity of the Pig-a assay for detecting gene mutation in rats exposed acutely to strong clastogens
- Evaluating the weak in vivo micronucleus response of a genotoxic carcinogen, Aristolochic acids
- Evaluation of Macaca mulatta as a model for genotoxicity studies
- Analysis of mutations in the Pig‐a gene of spleen T‐cells from N‐ethyl‐N‐nitrosourea‐treated fisher 344 rats
- Detection of In Vivo Mutation in the Hprt and Pig-a Genes of Rat Lymphocytes
- Detection of In Vivo Mutation in the Hprt and Pig-a Genes of Rat Lymphocytes
- Detection of In Vivo Mutation in the Hprt and Pig-a Genes of Rat Lymphocytes
- Molecular analysis of lacI mutations in Rat2TM cells exposed to 7,12-dimethylbenz[a]anthracene: evidence for DNA sequence and DNA strand biases for mutation
- Pharmacokinetics, dose‐range, and mutagenicity studies of methylphenidate hydrochloride in B6C3F1 mice
- The genetic toxicology of methylphenidate hydrochloride in non-human primates
- Evaluation of mutagenic mode of action in Big Blue mice fed methylphenidate for 24 weeks
- Evaluation of Macaca mulatta as a model for genotoxicity studies
- Pharmacokinetics, dose‐range, and mutagenicity studies of methylphenidate hydrochloride in B6C3F1 mice
- The genetic toxicology of methylphenidate hydrochloride in non-human primates
- Evaluation of mutagenic mode of action in Big Blue mice fed methylphenidate for 24 weeks
- Induction of stress proteins by electromagnetic fields in cultured HL-60 cells
- p53 synthesis and phosphorylation in the aging diet-restricted rat following retinoic acid administration
- A circadian study of liver antioxidant enzyme systems of female Fischer-344 rats subjected to dietary restriction for six weeks.
- The relationship of p53 and stress proteins in response to bleomycin and retinoic acid in the p53 heterozygous mouse
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