Results 1 to 10 of about 53,897 (283)

Atmospheric chemistry of gas-phase polycyclic aromatic hydrocarbons: formation of atmospheric mutagens. [PDF]

open access: yesEnvironmental Health Perspectives, 1994
The atmospheric chemistry of the 2- to 4-ring polycyclic aromatic hydrocarbons (PAH), which exist mainly in the gas phase in the atmosphere, is discussed. The dominant loss process for the gas-phase PAH is by reaction with the hydroxyl radical, resulting
R. Atkinson, J. Arey
semanticscholar   +5 more sources

Concentration of mutagens from urine by absorption with the nonpolar resin XAD-2: cigarette smokers have mutagenic urine. [PDF]

open access: bronzeProceedings of the National Academy of Sciences of the United States of America, 1977
A method is described for concentrating mutagens/carcinogens from human urine about 200-fold for subsequent assay in the Salmonella/mammalian microsome mutagenicity test.
Edna N. Yamasaki, B N Ames
openalex   +2 more sources

Optimal doses and concentrations of mutagens for winter wheat breeding purposes. Part I. Grain productivity [PDF]

open access: yesJournal of Central European Agriculture, 2018
Evaluation of winter wheat mutant families (2011 – 2012, second – third generations, exclude a little number of dominant mutations at first generation) and lines (2013 – 2016, forth and next generations) has been carried out.
Mykola Nazarenko   +3 more
doaj   +2 more sources

Unboxing the molecular modalities of mutagens in cancer

open access: yesEnvironmental science and pollution research international, 2021
The etiology of the majority of human cancers is associated with a myriad of environmental causes, including physical, chemical, and biological factors. DNA damage induced by such mutagens is the initial step in the process of carcinogenesis resulting in
S. Kumari   +5 more
semanticscholar   +1 more source

Compilation of Groups of Mutagens used to Obtain Optimized Yeast Strains. [PDF]

open access: yes, 2023
Yeasts can be used to process industrial by-products to produce products with higher added value. To optimize the technology, new yeast strains can be created through mutagenesis with improved traits of interests.
Feldmane, Linda, Spalviņš, Krišs
core   +2 more sources

Impact of sampling time on the detection of mutations in rapidly proliferating tissues using transgenic rodent gene mutation models: A review

open access: yesEnvironmental and Molecular Mutagenesis, Volume 63, Issue 8-9, Page 376-388, December 2022., 2022
Abstract The OECD Test Guideline 488 (TG 488) for the Transgenic Rodent Gene Mutation Assay has undergone several revisions to update the recommended design for studying mutations in somatic tissues and male germ cells. The recently revised TG recommends a single sampling time of 28 days following 28 days of exposure (i.e., 28 + 28 days) for all ...
George R. Douglas   +9 more
wiley   +1 more source

Occupational carcinogens and mutagens in Poland – occurrence and workers’ exposure in the years 2018–2021 based on the data from Central register of carcinogenic or mutagenic agents

open access: yesMedycyna Pracy, 2023
Background Central register of data on exposure to carcinogenic or mutagenic chemical substances, their mixtures, agents or technological processes (CRCR) conducted by Nofer Institute of Occupational Medicine (NIOM) enables monitoring of such agents ...
Agnieszka Klimecka   +3 more
doaj   +1 more source

The Excited State Dynamics of a Mutagenic Cytidine Etheno Adduct Investigated by Combining Time-Resolved Spectroscopy and Quantum Mechanical Calculations [PDF]

open access: yesJournal of Physical Chemistry Letters, American Chemical Society, 2022, 13 (1), pp.251-257, 2022
Joint femtosecond fluorescence upconversion experiments and theoretical calculations provide a hitherto unattained degree of characterization and understanding of the mutagenic etheno adduct 3,N4-etheno-2'-deoxycytidine ($\epsilon$dC) excited state relaxation. This endogenously formed lesion is attracting great interest because of its ubiquity in human
arxiv   +1 more source

Strain Development in Microalgal Biotechnology—Random Mutagenesis Techniques

open access: yesLife, 2022
Microalgal biomass and metabolites can be used as a renewable source of nutrition, pharmaceuticals and energy to maintain or improve the quality of human life.
Richard Bleisch   +6 more
doaj   +1 more source

Multigenerational downregulation of insulin/IGF‐1 signaling in adulthood improves lineage survival, reproduction, and fitness in Caenorhabditis elegans supporting the developmental theory of ageing

open access: yesEvolution, Volume 76, Issue 12, Page 2829-2845, December 2022., 2022
Abstract Adulthood‐only downregulation of insulin/IGF‐1 signaling (IIS), an evolutionarily conserved pathway regulating resource allocation between somatic maintenance and reproduction, increases life span without fecundity cost in the nematode, Caenorhabditis elegans.
Elizabeth M. L. Duxbury   +6 more
wiley   +1 more source

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