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Alves AA, Laurinho K, Franco FC, de Araujo Nascimento F, Nunes HF, de Melo E Silva D. The Incidence of the XRCC1 rs25487 and PON1 rs662 Polymorphisms in a Population from Central Brazil: Patterns in an Area with a High Level of Agricultural Activity. Biochem Genet 2023; 61:1675-1703. [PMID: 36725786 DOI: 10.1007/s10528-023-10337-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 01/17/2023] [Indexed: 02/03/2023]
Abstract
In Brazil, high levels of agricultural activity are reflected in the consumption of enormous amounts of pesticides. The production of grain in Brazil has been estimated at 289.8 million tons in the 2022 harvest, an expansion of 14.7% compared with 2021. These advances are likely associated with a progressive increase in the occupational exposure of a population to pesticides. The Paraoxonase 1 gene (PON1) is involved in liver detoxification; the rs662 variant of this gene modifies the activity of the enzyme. The repair of pesticide-induced genetic damage depends on the protein produced by the X-Ray Repair Cross-Complementing Group 1 gene (XRCC). Its function is impaired due to an rs25487 variant. The present study describes the frequencies of the rs662 and rs25487 and their haplotypes in a sample population from Goiás, Brazil. It compares the frequencies with other populations worldwide to verify the variation in the distribution of these SNPs, with 494 unrelated individuals in the state of Goiás. The A allele of the rs25487 variant had a frequency of 26% in the Goiás population, and the modified rs662 G allele had a frequency of 42.8%. Four haplotypes were recorded for the rs25487 (G > A) and rs662 (A > G) markers, with a frequency of 11.9% being recorded for the A-G haplotype (both modified alleles), 30.8% for the G-G haplotype, 14.3% for the A-A haplotype, and 42.8% for the G-A haplotype (both wild-type alleles). We demonstrated the distribution of important SNPs associated with pesticide exposure in an area with a high agricultural activity level, Central Brazil.
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Affiliation(s)
- Alessandro Arruda Alves
- Mutagenesis Laboratory, Graduate Program in Genetics and Molecular Biology, Federal University of Goias, Goiânia, Go, Brazil
| | - Késsia Laurinho
- Mutagenesis Laboratory, Graduate Program in Genetics and Molecular Biology, Federal University of Goias, Goiânia, Go, Brazil
| | - Fernanda Craveiro Franco
- Animal Virology Laboratory, Institute of Tropical Pathology, Federal University of Goias, Goiânia, Go, Brazil
| | - Felipe de Araujo Nascimento
- Mutagenesis Laboratory, Graduate Program in Genetics and Molecular Biology, Federal University of Goias, Goiânia, Go, Brazil
| | - Hugo Freire Nunes
- Mutagenesis Laboratory, Graduate Program in Genetics and Molecular Biology, Federal University of Goias, Goiânia, Go, Brazil
| | - Daniela de Melo E Silva
- Mutagenesis Laboratory, Graduate Program in Genetics and Molecular Biology, Federal University of Goias, Goiânia, Go, Brazil.
- Laboratory of Genetics and Biodiversity, Graduate Program in Genetics and Molecular Biology, Federal University of Goias, Goiânia, Go, Brazil.
- Mutagenesis Laboratory, Campus Samambaia, Genetics Department, Institute of Biological Sciences, Federal University of Goiás, Estrada do Campus, s/n, Goiania, GO, CEP: 74690900, Brazil.
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Martins AC, Gallimberti M, de Oliveira Souza VC, Rocha BA, Barbosa F. Biomonitoring for uranium exposure among young children living in nineteen states across five regions of Brazil. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5964-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lourenço J, Mendo S, Pereira R. Radioactively contaminated areas: Bioindicator species and biomarkers of effect in an early warning scheme for a preliminary risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2016; 317:503-542. [PMID: 27343869 DOI: 10.1016/j.jhazmat.2016.06.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 05/26/2016] [Accepted: 06/08/2016] [Indexed: 05/24/2023]
Abstract
Concerns about the impacts on public health and on the natural environment have been raised regarding the full range of operational activities related to uranium mining and the rest of the nuclear fuel cycle (including nuclear accidents), nuclear tests and depleted uranium from military ammunitions. However, the environmental impacts of such activities, as well as their ecotoxicological/toxicological profile, are still poorly studied. Herein, it is discussed if organisms can be used as bioindicators of human health effects, posed by lifetime exposure to radioactively contaminated areas. To do so, information was gathered from several studies performed on vertebrates, invertebrate species and humans, living in these contaminated areas. The retrieved information was compared, to determine which are the most used bioindicators and biomarkers and also the similarities between human and non-human biota responses. The data evaluated are used to support the proposal for an early warning scheme, based on bioindicator species and on the most sensitive and commonly shared biomarkers, to perform a screening evaluation of radioactively contaminated sites. This scheme could be used to support decision-making for a deeper evaluation of risks to human health, making it possible to screen a large number of areas, without disturbing and alarming local populations.
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Affiliation(s)
- Joana Lourenço
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.
| | - Sónia Mendo
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Ruth Pereira
- Department of Biology, Faculty of Sciences of the University of Porto & CIIMAR - Interdisciplinary Centre of Marine and Environmental Research & GreenUP/CITAB-UP, Porto, Portugal
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