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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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de Lima-Reis SR, Silva TA, Costa LSA, Volp ACP, Rios-Santos F, Reis ÉM, Bassi-Branco CL. Serum levels of vitamin A, selenium and better dietary total antioxidant capacity are related to lower oxidative DNA damage: a cross-sectional study of individuals at cardiovascular risk. J Nutr Biochem 2022; 107:109070. [PMID: 35644409 DOI: 10.1016/j.jnutbio.2022.109070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 10/22/2021] [Accepted: 05/03/2022] [Indexed: 12/06/2022]
Abstract
The risk for cardiovascular diseases (CVR) has been associated with oxidative DNA damage, but the genetic and environmental factors involved in the antioxidant and DNA repair system contributing to this damage are unknown. The aim was to evaluate the levels of oxidative DNA damage in CVR subjects and how it is related with some genetic and nutritional factors. The cross-sectional study evaluated 136 individuals of both sexes, aged 20-59 years, with at least one cardiovascular risk factor. The global risk score was used to classify individuals at low, intermediate and high cardiovascular risk. The dietary total antioxidant capacity (DTAC) was calculated using table with FRAP values. The oxidative DNA damage was verified by the comet assay. The variants null of Glutathione-S-transferases Mu1 and Theta 1(GSTM1 and GSTT1) and rs25487 of X-Ray Repair Cross Complementing Protein 1 (XRCC1) were analyzed by real-time PCR and PCR-RFLP, respectively. The oxidative DNA damage was higher in patients with intermediate/high CVR than in patients with low CVR (p=0.01). Individuals with GSTT1/GSTM1 null genotypes or arg/gln + gln/gln genotypes of the XRCC1 (rs25487) gene showed similar levels of oxidative DNA damage compared wild genotype. Multivariate regression analysis demonstrated that oxidative DNA damage in individuals with CVR depends on serum levels of vitamin A, selenium and DTAC independently of the other factors [F(6.110)=8.213; p<0.001; R2=0.330]. These findings suggest that nutritional factors such as DTAC, vitamin A and selenium may have a protective effect against oxidative DNA damage in these individuals.
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Affiliation(s)
- Sílvia Regina de Lima-Reis
- Faculty of Nutrition, Federal University of Mato Grosso, Cuiabá, MT, Brazil; Postgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil.
| | - Thamires Aguiar Silva
- Postgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil
| | | | | | - Fabricio Rios-Santos
- Postgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil; Red Latinoamericana de Implementación y Validación de Guías Clínicas Farmacogenómicas (RELIVAF). Programa Iberoamericano de Ciencia y Tecnologia para el Desarrollo (CYTED, Red 219RT0572)
| | - Érica Melo Reis
- Postgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil; Red Latinoamericana de Implementación y Validación de Guías Clínicas Farmacogenómicas (RELIVAF). Programa Iberoamericano de Ciencia y Tecnologia para el Desarrollo (CYTED, Red 219RT0572)
| | - Carmen Lucia Bassi-Branco
- Postgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil; Red Latinoamericana de Implementación y Validación de Guías Clínicas Farmacogenómicas (RELIVAF). Programa Iberoamericano de Ciencia y Tecnologia para el Desarrollo (CYTED, Red 219RT0572)
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Usman M, Priya K, Pandit S, Gupta P. Cancer risk and nullity of Glutathione-S-transferase mu and theta 1 in occupational pesticide workers. Curr Pharm Biotechnol 2021; 23:932-945. [PMID: 34375184 DOI: 10.2174/1389201022666210810092342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 12/08/2022]
Abstract
Occupational exposure to pesticides has been associated with adverse health conditions, including genotoxicity and cancer. Nullity of GSTT1/GSTM1 increases the susceptibility of pesticide workers to these adverse health effects due to lack of efficient detoxification process created by the absence of these key xenobiotic metabolizing enzymes. However, this assertion does not seem to maintain its stance at all the time; some pesticide workers with the null genotypes do not present the susceptibility. This suggests the modulatory role of other confounding factors, genetic and environmental conditions. Pesticides, aggravated by the null GSTT1/GSTM1, cause genotoxicity and cancer through oxidative stress and miRNA dysregulation. Thus, the absence of these adverse health effects together with the presence of null GSTT1/GSTM1 genotypes demands further explanation. Also, understanding the mechanism behind the protection of cells - that are devoid of GSTT1/GSTM1 - from oxidative stress constitutes a great challenge and potential research area. Therefore, this review article highlights the recent advancements in the presence and absence of cancer risk in occupational pesticide workers with GSTT1 and GSTM1 null genotypes.
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Affiliation(s)
- Muhammad Usman
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
| | - Kanu Priya
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
| | - Piyush Gupta
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
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Genetic polymorphisms as determinants of pesticide toxicity: Recent advances. Toxicol Rep 2019; 6:564-570. [PMID: 31293901 PMCID: PMC6595235 DOI: 10.1016/j.toxrep.2019.06.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/30/2019] [Accepted: 06/06/2019] [Indexed: 12/19/2022] Open
Abstract
Genetic polymorphisms may influence pesticides-induced oxidative damage.Pesticides modulate immune-system cells functionality, leading to the onset of a dangerous pro-inflammatory microenvironment. DNA repair genes, Cytochrome P450 s, PON and GST genes have a key role in the metabolism of xenobiotics. Many workers are professionally exposed to pesticides with potential health consequences.
Occupational and environmental exposure to pesticides may induce harmful effects on human health by promoting the development of a wide range of disorders. Some of the most recently hypothesized mechanisms are oxidative stress and epigenetic modifications, however biological effects seem to be modulated mainly by the occurrence of genetic polymorphisms. The susceptibility to exposure can be evaluated by studying the most common polymorphisms of genes involved in the metabolism of organophosphorus compounds (cytochrome P450, glutathione transferase, acetyltransferases or paraoxonase 1). The aim of this article is to review recent literature data concerning the influence of genetic polymorphisms on pesticides-induced oxidative damage.
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de Melo E Silva D, Alves AA, Nunes HF, Ramos JSA, Franco FC, Soares TN. Evaluating the OGG1 rs1052133 and rs293795 polymorphisms in a sample of rural workers from Central Brazil population: a comparative approach with the 1000 Genomes Project. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:25612-25617. [PMID: 30030761 DOI: 10.1007/s11356-018-2766-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 07/13/2018] [Indexed: 06/08/2023]
Abstract
Brazilian population is one of the largest consumers of pesticides in the world, especially the Central Brazil population. Thus, the aim of this study was to evaluate the frequency of genotypes, alleles, haplotypes, and the linkage disequilibrium (DL) of the OGG1 gene in rural workers from Central Brazil, comparing with the populations of the 1000 genome. Three hundred thirty healthy individuals not related and randomly selected were included in this study. We obtained genomic DNA from peripheral blood lymphocytes. The 748-bp OGG1 gene was amplified by PCR and sequenced. Of the 330 individuals, 215 (65%) were males and 115 (35%) were females. There were no differences in the distribution of the rs1052133 and rs293795 with age and sexes. Haplotypes containing only conserved T/C alleles were the most common in our population. The frequency of the mutant alleles of rs1052133 and rs293795, in our population, was 20% and 30%, respectively, and it is noteworthy, worldwide, that mutant alleles are commonly associated to an increased risk for the development of cancer, specially due to direct or indirect contact to pesticides, as occurs in rural workers of Central Brazil population.
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Affiliation(s)
- Daniela de Melo E Silva
- Laboratório de Mutagênese, Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil.
- Depto. de Genética. Instituto de Ciências Biológicas, Universidade Federal de Goiás, Estrada do Campus, s/n, ICB I - Sala 218/228. Bairro: Campus Universitário, Goiânia, GO, CEP: 74690-900, Brazil.
| | - Alessandro Arruda Alves
- Laboratório de Mutagênese, Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Hugo Freire Nunes
- Laboratório de Mutagênese, Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Jheneffer Sonara Aguiar Ramos
- Laboratório de Mutagênese, Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Fernanda Craveiro Franco
- Laboratório de Virologia e Cultura Celular, Departamento de Microbiologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Thannya Nascimento Soares
- Laboratório de Genética e Biodiversidade, Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
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Lopes CVA, Albuquerque GSCD. Agrotóxicos e seus impactos na saúde humana e ambiental: uma revisão sistemática. SAÚDE EM DEBATE 2018. [DOI: 10.1590/0103-1104201811714] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
RESUMO Atualmente, o Brasil é o maior consumidor de agrotóxicos do mundo. Diversos estudos comprovam os malefícios para a saúde humana e ambiental da exposição aos agrotóxicos. Realizou-se uma revisão sistemática no período de 2011 a 2017 acerca desse tema em bases de dados científicos. Foram incluídos 116 estudos que demonstraram o impacto negativo para a saúde humana e ambiental. É essencial a realização de estudos sobre os efeitos da exposição crônica e simultânea a diversos agrotóxicos, além de estudos sobre os nexos de determinação estrutural do uso dos venenos e suas consequências.
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Ahluwalia M, Kaur A. Modulatory role of GSTT1 and GSTM1 in Punjabi agricultural workers exposed to pesticides. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:11981-11986. [PMID: 29450776 DOI: 10.1007/s11356-018-1459-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 02/01/2018] [Indexed: 06/08/2023]
Abstract
Glutathione S-transferases are important detoxification enzymes involved in the metabolism of endogenous as well as exogenous compounds. Individuals differ in metabolic capacity due to inherited genetic variations. Due to the polymorphism exhibited by GSTT1 and GSTM1 that results in the complete loss of function, the present study was aimed towards the determination of the frequency distribution of GSTT1 and GSTM1 in agricultural workers in Punjab, India. The study aimed to investigate their contribution in susceptibility to increased disease risk. A total of 513 subjects were included in this study, out of which 250 were agriculture workers and 263 were non-exposed occupationally. GSTT1 and GSTM1 null-genotype distribution was analyzed through multiplex-PCR method. Complete gene deletion in either of the genes was strongly associated with an increased risk (OR = 1.8; 95% CI = 1.3-2.6; p < 0.0008) of DNA/cytogenetic damage, cancer, infertility, and many other serious health effects. Therefore, homozygous deletion in GSTT1 or GSTM1 could play a modulatory role in health of workers with long-term exposure to pesticides.
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Affiliation(s)
| | - Anupam Kaur
- Department of Human Genetics, Guru Nanak Dev University, Amritsar, India.
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Glass T, Dalvie MA, Holtman Z, Vorster AA, Ramesar RS, London L. DNA variants and organophosphate neurotoxicity among emerging farmers in the Western Cape of South Africa. Am J Ind Med 2018; 61:11-20. [PMID: 29143350 DOI: 10.1002/ajim.22790] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2017] [Indexed: 11/06/2022]
Abstract
BACKGROUND Previous epidemiological studies investigating modification of organophosphate (OP) neurotoxicity by xenobiotic metabolizing enzymes (XMEs) polymorphisms have produced inconsistent results. METHODS A cross-sectional study of 301 emerging farmers was conducted. Neurotoxicity testing included forward and backward recall, digit span, and vibration sensitivity testing. Questionnaire data included demography, potential confounders, and work history of pesticide exposures. Genomic DNA was analyzed from study participants for DNA variants of two glutathione S-transferases (GSTM1 and GSTT1), N-acetyltransferase 2 (NAT2), and Paraoxonase 1 (PON1). RESULTS There was evidence of OP pesticide neurotoxicity modification by rs1799931 (NAT2), rs662 (PON1), and the null allele of GSTM1 in multivariate analysis. The strongest evidence of modification was observed for rs1799931 (NAT2) on the relationship between pesticide poisoning and impaired vibration sense. CONCLUSIONS DNA variants of NAT2, PON1, and GSTM1 may modify OP neurotoxicity, and this requires further exploration.
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Affiliation(s)
- Tracy Glass
- School of Public Health and Family Medicine; University of Cape Town; Centre for Environmental and Occupational Health Research (CEOHR); Cape Town Western Cape South Africa
| | - Mohamed A. Dalvie
- School of Public Health and Family Medicine; University of Cape Town; Centre for Environmental and Occupational Health Research (CEOHR); Cape Town Western Cape South Africa
| | - Zelda Holtman
- School of Public Health and Family Medicine; University of Cape Town; Centre for Environmental and Occupational Health Research (CEOHR); Cape Town Western Cape South Africa
| | - Anna A. Vorster
- MRC Human Genetics Research Unit; Division of Human Genetics; Institute for Infectious Diseases and Molecular Medicine; Faculty of Health Sciences; Department of Pathology; University of Cape Town; Cape Town South Africa
| | - Rajkumar S. Ramesar
- MRC Human Genetics Research Unit; Division of Human Genetics; Institute for Infectious Diseases and Molecular Medicine; Faculty of Health Sciences; Department of Pathology; University of Cape Town; Cape Town South Africa
| | - Leslie London
- School of Public Health and Family Medicine; University of Cape Town; Centre for Environmental and Occupational Health Research (CEOHR); Cape Town Western Cape South Africa
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Franco FC, Alves AA, Godoy FR, Avelar JB, Rodrigues DD, Pedroso TMA, da Cruz AD, Nomura F, de Melo E Silva D. Evaluating genotoxic risks in Brazilian public health agents occupationally exposed to pesticides: a multi-biomarker approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:19723-19734. [PMID: 27406225 DOI: 10.1007/s11356-016-7179-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
This is the first study demonstrating genotoxic effects and whole transcriptome analysis on community health agents (CHAs) occupationally exposed to pesticides in Central Brazil. For the transcriptome analysis, we found some genes related to Alzheimer's disease (LRP1), an insulin-like growth factor receptor (IGF2R), immunity genes (IGL family and IGJ), two genes related to inflammatory reaction (CXCL5 and CCL3), one gene related to maintenance of cellular morphology (NHS), one gene considered to be a strong apoptosis inductor (LGALS14), and several transcripts of the neuroblastoma breakpoint family (NBPF). Related to comet assay, we demonstrated a significant increase in DNA damage, measured by the olive tail moment (OTM), in the exposed group compared to the control group. Moreover, we also observed a statistically significant difference in OTM values depending on GSTM1 genotypes. Therefore, Brazilian epidemiological surveillance, an organization responsible for the assessment and management of health risks associated to pesticide exposure to CHA, needs to be more proactive and considers the implications of pesticide exposure for CHA procedures and processes.
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Affiliation(s)
- Fernanda Craveiro Franco
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Alessandro Arruda Alves
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Fernanda Ribeiro Godoy
- Núcleo de Pesquisas Replicon, Departamento de Biologia, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Juliana Boaventura Avelar
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Douglas Dantas Rodrigues
- Núcleo de Pesquisas Replicon, Departamento de Biologia, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Thays Millena Alves Pedroso
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Aparecido Divino da Cruz
- Núcleo de Pesquisas Replicon, Departamento de Biologia, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Fausto Nomura
- Campus II, Itatiaia, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep 74001-970, Brazil
| | - Daniela de Melo E Silva
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
- Campus II, Itatiaia, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep 74001-970, Brazil.
- Programa de Pós-Graduação em Ciências Ambientais, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
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