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Biology and Biochemistry

D-Index
60
Citations
13492
World Ranking
11913
National Ranking
5117

Research.com Recognitions

  • 1982 - Fellow of the Royal Society of Canada Academy of Science

Overview

James T. MacGregor is affiliated with the United States Food and Drug Administration in the United States. Their research primarily focuses on the fields of Biochemistry, Genetics and Molecular Biology, and Medicine. Within these areas, their work spans several subfields including Molecular Biology, Genetics, Public Health, Environmental and Occupational Health, Health, Toxicology and Mutagenesis, and Cancer Research.

The main topics addressed in MacGregor's research include:

  • Carcinogens and Genotoxicity Assessment
  • Inflammatory Bowel Disease
  • Acute Lymphoblastic Leukemia research
  • Helicobacter pylori-related gastroenterology studies
  • Chromium effects and bioremediation
  • Environmental remediation with nanomaterials
  • Recycling and Waste Management Techniques

Their recent publications contribute to various scientific journals and cover multiple aspects of genetic and environmental toxicology.

Recent papers include:

  • "Human blood PIG-A mutation and micronucleated reticulocyte flow cytometric assays: Method optimization and evaluation of intra- and inter-subject variation," 2020, Environmental and Molecular Mutagenesis
  • "Assessment of systemic genetic damage in pediatric inflammatory bowel disease," 2020, Environmental and Molecular Mutagenesis
  • "Bruce Nathan Ames - Paradigm shifts inside the cancer research revolution," 2020, Mutation Research/Reviews in Mutation Research
  • "A review of mammalianin vivo genotoxicity of hexavalent chromium: implications for oral carcinogenicity risk assessment," 2021, Critical Reviews in Toxicology
  • "Lack of hydroxyurea-associated mutagenesis in pediatric sickle cell disease patients," 2023, Environmental and Molecular Mutagenesis

Their frequent co-authors include:

  • Svetlana L. Avlasevich
  • Dorothea K. Torous
  • Jeffrey C. Bemis
  • Stephen D. Dertinger
  • Errol Zeiger

MacGregor's research often appears in journals such as Environmental and Molecular Mutagenesis (with three publications), Critical Reviews in Toxicology, Food and Chemical Toxicology, Mutation Research/Reviews in Mutation Research, and Toxicology Letters.

In recognition of contributions to science, James T. MacGregor was awarded the title of Fellow of the Royal Society of Canada in 1982 by the Academy of Science.

Best Publications

  • Folate deficiency causes uracil misincorporation into human DNA and chromosome breakage: Implications for cancer and neuronal damage

    Benjamin C. Blount;Matthew M. Mack;Carol M. Wehr;James T. MacGregor

  • The induction of micronuclei as a measure of genotoxicity: A report of the U.S. environmental protection agency Gene-Tox program☆

    John A. Heddle;Mark Hite;Barbara Kirkhart;Kathleen Mavournin

  • Micronuclei as an index of cytogenetic damage: Past, present, and future

    J. A. Heddle;M. C. Cimino;M. Hayashi;F. Romagna

  • Toxicology and genetic toxicology in the new era of "toxicogenomics": impact of "-omics" technologies.

    Marilyn J. Aardema;James T. MacGregor

  • Guidelines for the conduct of micronucleus assays in mammalian bone marrow erythrocytes.

    James T. MacGregor;John A. Heddle;Mark Hite;Barry H. Margolin

  • In vivo rodent erythrocyte micronucleus assay.

    Makoto Hayashi;Raymond R. Tice;James T. MacGregor;Diana Anderson

  • Mutagenicity of plant flavonoids: structural requirements for mutagenic activity in Salmonella typhimurium.

    James T. Macgregor;Leonard Jurd

  • Clastogen-induced micronuclei in peripheral blood erythrocytes: The basis of an improved micronucleus test

    James T. MacGregor;Carol M. Wehr;Daniel H. Gould

  • In vivo rodent erythrocyte micronucleus assay. II. Some aspects of protocol design including repeated treatments, integration with toxicity testing, and automated scoring.

    Makoto Hayashi;James T. MacGregor;David G. Gatehouse;Ilse-Dore Adler

  • Trivalent Chromium: Assessing the Genotoxic Risk of an Essential Trace Element and Widely Used Human and Animal Nutritional Supplement

    David A. Eastmond;James T. MacGregor;Ronald S. Slesinski

  • The in vivo erythrocyte micronucleus test: measurement at steady state increases assay efficiency and permits integration with toxicity studies.

    James T. Macgregor;Carol M. Wehr;Philip R. Henika;Michael D. Shelby

  • Serum Troponins as Biomarkers of Drug-Induced Cardiac Toxicity

    Kendall B. Wallace;Elizabeth Hausner;Eugene Herman;Eugene Herman;Gordon D. Holt

  • The persistence of micronuclei in peripheral blood erythrocytes: detection of chronic chromosome breakage in mice

    Robert Schlegel;Robert Schlegel;James T. MacGregor;James T. MacGregor

  • Strategy for genotoxicity testing: hazard identification and risk assessment in relation to in vitro testing

    V. Thybaud;M. Aardema;J. Clements;K. Dearfield

  • In vivo erythrocyte micronucleus assay III. Validation and regulatory acceptance of automated scoring and the use of rat peripheral blood reticulocytes, with discussion of non-hematopoietic target cells and a single dose-level limit test.

    Makoto Hayashi;James T MacGregor;David G Gatehouse;David H Blakey

  • Association of Marginal Folate Depletion With Increased Human Chromosomal Damage In Vivo: Demonstration by Analysis of Micronucleated Erythrocytes

    Richard B. Everson;Carol M. Wehr;Gregory L Erexson;James T. MacGregor

  • 'Spontaneous' genetic damage in man: evaluation of interindividual variability, relationship among markers of damage, and influence of nutritional status.

    James T MacGregor;Carol M Wehr;Robert A Hiatt;Beverly Peters

  • The persistence of micronucleated erythrocytes in the peripheral circulation of normal and splenectomized Fischer 344 rats: implications for cytogenetic screening.

    Robert Schlegel;Robert Schlegel;James T. MacGregor;James T. MacGregor

  • Genetic effects of the flavonols quercetin, kaempferol, and galangin on Chinese hamster ovary cells in vitro.

    J.H. Carver;A.V. Carrano;J.T. MacGregor

  • Induction of hepatic mutations in lacI transgenic mice

    Jon C. Mirsalis;G.Scott Provost;Crystal D. Matthews;Richard T. Hamner

Frequent Co-Authors

Stephen D. Dertinger
Stephen D. Dertinger University of Rochester
Makoto Hayashi
Makoto Hayashi makoto international consulting
David Kirkland
David Kirkland Covance (United States)
James D. Tucker
James D. Tucker Wayne State University
Mendel Friedman
Mendel Friedman United States Department of Agriculture
Michael D. Shelby
Michael D. Shelby National Institutes of Health
Marilyn J. Aardema
Marilyn J. Aardema Procter & Gamble (United States)
Martha M. Moore
Martha M. Moore National Center for Toxicological Research
Bruce N. Ames
Bruce N. Ames University of California, Berkeley
Errol Zeiger
Errol Zeiger National Institutes of Health

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