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Campos CF, Santos VSV, Campos Júnior EOD, da Costa Estrela D, Pires LP, Meza Bravo JV, Pereira BB. Assessment of genotoxicity of air pollution in urban areas using an integrated model of passive biomonitoring. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 355:124219. [PMID: 38797347 DOI: 10.1016/j.envpol.2024.124219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Atmospheric pollution is a major public health issue and has become increasingly critical for human health. Urban atmospheric pollution is typically assessed through physicochemical indicators aligned with environmental legislation parameters, providing data on air quality levels. While the effects of pollution on sensitive organisms serve as a warning for public health decision-makers, there remains a need to explore the interpretation of environmental data on pollutants. The use of species adapted to urban environments as sentinels enables continuous and integrated monitoring of environmental pollution implications on biological systems. In this study, we investigated the use of the plant species Tradescantia pallida as a biomonitor to evaluate the genotoxic effects of atmospheric pollution under diverse vehicular traffic conditions. T. pallida was strategically planted at the leading urban intersections in Uberlândia, Brazil. During COVID-19 pandemic lockdowns, we compared indicators such as physical, biological, and traffic data at different intersections in residential and commercial zones. The reduction in vehicular traffic highlighted the sensitivity of plant species to changes in air and soil pollutants. T. pallida showed bioaccumulation of heavy metals Cd and Cr in monitored areas with higher traffic levels. Additionally, we established a multiple linear regression model to estimate genotoxicity using the micronucleus test, with chromium concentration in the soil (X1) and particulate matter (PM) in the atmosphere (X2) identified as the primary independent variables. Our findings provide a comprehensive portrait of the impact of vehicular traffic changes on PM and offer valuable insights for refining parameters and models of Environmental Health Surveillance.
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Affiliation(s)
- Carlos Fernando Campos
- Federal University of Uberlândia, Institute of Biotechnology, Umuarama Campus, Uberlândia, Minas Gerais, Brazil
| | | | | | | | - Luís Paulo Pires
- Federal University of Uberlândia, Sustainability Office, Santa Mônica Campus, Uberlândia, Minas Gerais, Brazil
| | - João Vitor Meza Bravo
- Federal University of Uberlandia, Institute of Geography, Santa Monica Campus, Avenida João Naves de Ávila, 2121, 38.408-100, Uberlandia, Minas Gerais, Brazil
| | - Boscolli Barbosa Pereira
- Federal University of Uberlândia, Institute of Biotechnology, Umuarama Campus, Uberlândia, Minas Gerais, Brazil; Federal University of Uberlandia, Institute of Geography, Santa Monica Campus, Avenida João Naves de Ávila, 2121, 38.408-100, Uberlandia, Minas Gerais, Brazil.
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Ladeira C, Araújo R, Ramalhete L, Teixeira H, Calado CRC. Blood molecular profile to predict genotoxicity from exposure to antineoplastic drugs. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2023; 891:503681. [PMID: 37770138 DOI: 10.1016/j.mrgentox.2023.503681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 10/03/2023]
Abstract
Genotoxicity is an important information that should be included in human biomonitoring programmes. However, the usually applied cytogenetic assays are laborious and time-consuming, reason why it is critical to develop rapid and economic new methods. The aim of this study was to evaluate if the molecular profile of frozen whole blood, acquired by Fourier Transform Infrared (FTIR) spectroscopy, allows to assess genotoxicity in occupational exposure to antineoplastic drugs, as obtained by the cytokinesis-block micronucleus assay. For that purpose, 92 samples of peripheral blood were studied: 46 samples from hospital professionals occupationally exposed to antineoplastic drugs and 46 samples from workers in academia without exposure (controls). It was first evaluated the metabolome from frozen whole blood by methanol precipitation of macromolecules as haemoglobin, followed by centrifugation. The metabolome molecular profile resulted in 3 ratios of spectral bands, significantly different between the exposed and non-exposed group (p < 0.01) and a spectral principal component-linear discriminant analysis (PCA-LDA) model enabling to predict genotoxicity from exposure with 73 % accuracy. After optimization of the dilution degree and solution used, it was possible to obtain a higher number of significant ratios of spectral bands, i.e., 10 ratios significantly different (p < 0.001), highlighting the high sensitivity and specificity of the method. Indeed, the PCA-LDA model, based on the molecular profile of whole blood, enabled to predict genotoxicity from the exposure with an accuracy, sensitivity, and specificity of 92 %, 93 % and 91 %, respectively. All these parameters were achieved based on 1 μL of frozen whole blood, in a high-throughput mode, i.e., based on the simultaneous analysis of 92 samples, in a simple and economic mode. In summary, it can be conclude that this method presents a very promising potential for high-dimension screening of exposure to genotoxic substances.
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Affiliation(s)
- Carina Ladeira
- H&TRC - Health & Technology Research Center, Escola Superior de Tecnologia da Saúde de Lisboa (ESTeSL), Instituto Politécnico de Lisboa, Avenida D. João II, lote 4.69.01, Parque das Nações, 1990-096 Lisboa, Portugal; NOVA National School of Public Health, Public Health Research Centre, Universidade NOVA de Lisboa, Lisbon, Portugal; Comprehensive Health Research Center (CHRC), Universidade NOVA de Lisboa, Portugal.
| | - Rúben Araújo
- Comprehensive Health Research Center (CHRC), Universidade NOVA de Lisboa, Portugal; ISEL - Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emidio Navarro 1, 1959‑007 Lisboa, Portugal; NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
| | - Luís Ramalhete
- ISEL - Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emidio Navarro 1, 1959‑007 Lisboa, Portugal; Blood and Transplantation Center of Lisbon, Instituto Português do Sangue e da Transplantação, Alameda das Linhas de Torres, n◦ 117, 1769-001 Lisbon, Portugal; NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
| | - Hélder Teixeira
- ISEL - Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emidio Navarro 1, 1959‑007 Lisboa, Portugal
| | - Cecília R C Calado
- ISEL - Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emidio Navarro 1, 1959‑007 Lisboa, Portugal; CIMOSM - Centro de Investigação em Modelação e Otimização de Sistemas Multifuncionais, ISEL - Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emidio Navarro 1, 1959‑007 Lisboa, Portugal
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Vanneste D, Verscheure E, Srinivasan AN, Godderis L, Ghosh M. Systematic review of genotoxicity induced by occupational exposure to antineoplastic drugs. Arch Toxicol 2023; 97:1453-1517. [PMID: 37099053 DOI: 10.1007/s00204-023-03481-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/02/2023] [Indexed: 04/27/2023]
Abstract
With increasing numbers of cancer cases, the use of antineoplastic agents is expected to rise. This will be accompanied by an increase in occupational exposure, which can cause unwanted health effects in workers. Our aim was to give an overview of genotoxic and epigenetic effects after occupational exposure to antineoplastic agents and to assess the concentration-effect relation. Four databases were searched for papers investigating genotoxic and/or epigenetic effects of occupational exposure to antineoplastic agents. Out of the 245 retrieved papers, 62 were included in this review. In this systematic literature review, we confirmed that exposure of healthcare workers to antineoplastic agents can lead to genotoxic damage. However, we observed a lack of data on exposure as well as genotoxic and epigenetic effects in workers other than healthcare workers. Furthermore, gaps in the current knowledge regarding the potential epigenetic effects caused by antineoplastic drug exposure and regarding the link between internal antineoplastic drug concentration and genotoxic and epigenetic effects after occupational exposure to antineoplastic agents were identified, offering a first step for future research.
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Affiliation(s)
- Dorian Vanneste
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, ON5 Herestraat 49, Box 952, 3000, Leuven, Belgium
| | - Eline Verscheure
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, ON5 Herestraat 49, Box 952, 3000, Leuven, Belgium
| | - Adhithya Narayanan Srinivasan
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, ON5 Herestraat 49, Box 952, 3000, Leuven, Belgium
| | - Lode Godderis
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, ON5 Herestraat 49, Box 952, 3000, Leuven, Belgium
| | - Manosij Ghosh
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, ON5 Herestraat 49, Box 952, 3000, Leuven, Belgium.
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Saeed A, Abolaban F. Spectroscopic study of the effect of low dose fast neutrons on the hemoglobin structure. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120082. [PMID: 34153551 DOI: 10.1016/j.saa.2021.120082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/06/2021] [Accepted: 06/10/2021] [Indexed: 06/13/2023]
Abstract
Cosmic rays, nuclear accidents, and neutron therapy could be sources for exposure to low-dose fast neutrons. However, the study of low dose effects needs sentient techniques to detect slight alteration happen by this low dose. Herein, the effects of low-dose fast neutrons on the structure of hemoglobin (Hb) using spectroscopic techniques, namely, Fourier transform infrared (FTIR), Raman, and ultraviolet-visible (UV-Vis) spectroscopic. Forty (20 control/20 irradiated) female Wistar rats were used in this work. The irradiated rats were irradiated to low-dose at a total dose of 10 mGy from a fast neutron source (241Am-Be, 0.2 mGy/h). Multivariate analyses were applied to differentiate between the control and irradiated rats' Raman spectra. The erythrocytes samples were isolated from whole blood to explore the Hb structure. FTIR results revealed changes in the ν(S-H) bond of α-104 and β-93 cysteines by low-dose fast neutrons. Raman spectra showed changes in the spin state and oxidation state of the iron atom of the Hb. Besides, deformation in methine C-H was recorded. UV-Vis spectroscopy disclosed that the irradiated rats might be more susceptive to oxidation than control rats. The study deduced that the low dose fast neutron could cause tiny Hb structure changes by indirect effects. Besides, the spectroscopic techniques showed a potent ability to reveal tiny changes in the Hb structure that happened by a low dose of fast neutrons.
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Affiliation(s)
- Abdu Saeed
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Physics, Thamar University, Thamar, Yemen.
| | - Fouad Abolaban
- Nuclear Engineering Department, College of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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