The genotoxic effects of the herbicide dicamba have been studied by measuring 1) the unwinding rate of liver DNA from intraperitoneally (i.p.) treated rats (fluorimetric assay); 2) DNA repair as unscheduled DNA synthesis (UDS) induced in cultured human peripheral blood lymphocytes (HPBL); and 3) sister chromatid exchanges (SCE) in HPBL. Results show that dicamba is capable of inducing DNA damage since it significantly increases the unwinding rate of rat liver DNA in vivo and also induces UDS in HPBL in vitro in the presence of exogenous metabolic activation (S-9 mix). Furthermore, dicamba causes a very slight increase in SCE frequency in HPBL in vitro.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/em.2850150303 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Small-molecule activator of SMUG1 enhances repair of pyrimidine lesions in DNA.
DNA Repair (Amst)
January 2025
Department of Chemistry and Stanford University, Stanford, CA 94305, United States. Electronic address:
A potentially promising approach to targeted cancer prevention in genetically at-risk populations is the pharmacological upregulation of DNA repair pathways. SMUG1 is a base excision repair enzyme that ameliorates adverse genotoxic and mutagenic effects of hydrolytic and oxidative damage to pyrimidines. Here we describe the discovery and initial cellular activity of a small-molecule activator of SMUG1.
View Article and Find Full Text PDFEvidence update on the cancer risk of vaping e-cigarettes: A systematic review.
Tob Induc Dis
January 2025
Institute of Medical Science, University of Toronto, Toronto, Canada.
Introduction: There is substantial interest in the association of vaping e-cigarettes with the risk of cancer. We analyzed this risk in different populations by updating the Kings College London (KCL) review to include the period between July 2021 and December 2023.
Methods: We searched six databases and included peer-reviewed human, animal, and cell/ original studies examining the association between e-cigarettes and cancer risk, but we excluded qualitative studies.
Polymorphisms in DNA Repair Genes as Biomarkers of Susceptibility for Pesticide-Induced DNA Damage among Agricultural Workers: A Review.
Indian J Occup Environ Med
December 2024
Viral Research and Diagnostic Laboratory (VRDL), Government Medical College, Patiala, Punjab, India.
Pesticides induce oxidative DNA damage and genotoxic effects such as DNA single-strand breaks (SSBs), double-strand breaks (DSBs), DNA adducts, chromosomal aberrations, and enhanced sister chromatid exchanges. Such DNA damage can be repaired by DNA repair mechanisms. In humans, single nucleotide polymorphisms (SNPs) are present in DNA repair genes involved in base excision repair (BER) (, and nucleotide excision repair (NER) (, , , and ), and double-strand break repair (DSBR) ( and ).
View Article and Find Full Text PDFE. Coli cytotoxic necrotizing factor-1 promotes colorectal carcinogenesis by causing oxidative stress, DNA damage and intestinal permeability alteration.
J Exp Clin Cancer Res
January 2025
Department of Cardiovascular, Endocrine-Metabolic Diseases and Aging, Istituto Superiore di Sanità, Rome, Italy.
Background: Bacterial toxins are emerging as promising hallmarks of colorectal cancer (CRC) pathogenesis. In particular, Cytotoxic Necrotizing Factor 1 (CNF1) from E. coli deserves special consideration due to the significantly higher prevalence of this toxin gene in CRC patients with respect to healthy subjects, and to the numerous tumor-promoting effects that have been ascribed to the toxin in vitro.
View Article and Find Full Text PDFEvaluation of the genotoxic and transformation potential induced by asbestos compared to cleavage fragments.
Sci Rep
January 2025
Department of Earth, Environment and Life Sciences, University of Genoa, 16132, Genoa, Italy.
The World Health Organization has confirmed that asbestos fibres are carcinogenic, claiming that asbestos-related diseases should be eradicated worldwide. Actinolite, amosite, anthophyllite, chrysotile, crocidolite, and tremolite are regulated asbestiform mineral phases. However, in nature, asbestos minerals occur either in a fibrous and asbestiform (original morphology characterized by high length-to-width ratio and provided of high tensile strength and flexibility) or fibrous but not asbestiform appearance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!