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Nguyen H, Vandewalle G, Mertens B, Collard JF, Hinsenkamp M, Verschaeve L, Feipel V, Magne I, Souques M, Beauvois V, Ledent M. Exposure assessment and cytogenetic biomonitoring study of workers occupationally exposed to extremely low-frequency magnetic fields. Bioelectromagnetics 2024; 45:260-280. [PMID: 38862415 DOI: 10.1002/bem.22506] [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: 05/15/2023] [Revised: 01/20/2024] [Accepted: 03/30/2024] [Indexed: 06/13/2024]
Abstract
Human cytogenetic biomonitoring (HCB) has long been used to evaluate the potential effects of work environments on the DNA integrity of workers. However, HCB studies on the genotoxic effects of occupational exposure to extremely low-frequency electromagnetic fields (ELF-MFs) were limited by the quality of the exposure assessment. More specifically, concerns were raised regarding the method of exposure assessment, the selection of exposure metrics, and the definition of exposure group. In this study, genotoxic effects of occupational exposure to ELF-MFs were assessed on peripheral blood lymphocytes of 88 workers from the electrical sector using the comet and cytokinesis-block micronucleus assay, considering workers' actual exposure over three consecutive days. Different methods were applied to define exposure groups. Overall, the summarized ELF-MF data indicated a low exposure level in the whole study population. It also showed that relying solely on job titles might misclassify 12 workers into exposure groups. We proposed combining hierarchical agglomerative clustering on personal exposure data and job titles to define exposure groups. The final results showed that occupational MF exposure did not significantly induce more genetic damage. Other factors such as age or past smoking rather than ELF-MF exposure could affect the cytogenetic test outcomes.
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Affiliation(s)
- Ha Nguyen
- Laboratoire de Recherche en Orthopédie Traumatologie, Université Libre de Bruxelles, Brussels, Belgium
- Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
| | - Giovani Vandewalle
- External Occupational Health Service for Prevention and Protection at Work, Mensura, Brussels, Belgium
| | - Birgit Mertens
- Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
| | - Jean-Francois Collard
- Laboratoire de Recherche en Orthopédie Traumatologie, Université Libre de Bruxelles, Brussels, Belgium
| | - Maurice Hinsenkamp
- Laboratoire de Recherche en Orthopédie Traumatologie, Université Libre de Bruxelles, Brussels, Belgium
| | - Luc Verschaeve
- Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
| | - Veronique Feipel
- Laboratoire de Recherche en Orthopédie Traumatologie, Université Libre de Bruxelles, Brussels, Belgium
| | | | | | - Véronique Beauvois
- Applied and Computational Electromagnetics Unit, Université de Liège, Liège, Belgium
| | - Maryse Ledent
- Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
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Malacarne IT, Alpire MES, Malinverni ACDM, Ribeiro DA. The use of micronucleus assay in oral mucosa cells as a suitable biomarker in children exposed to environmental mutagens: theoretical concepts, guidelines and future directions. REVIEWS ON ENVIRONMENTAL HEALTH 2024; 39:191-197. [PMID: 36367315 DOI: 10.1515/reveh-2022-0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
In the last decades, the micronucleus assay has been recognized as a suitable biomarker for monitoring populations exposed to many different occupational factors, lifestyle, environmental conditions, radiation exposure, and deleterious effects of pesticides. The objective of this work is to direct the design of future field studies in the assessment of the risk of children exposed to environmental mutagens, radiation, and pesticides. This review sought available information on the analysis of micronuclei in oral cells in children. A literature search for papers investigating DNA damage, genetic damage, oral cells, buccal cells, genotoxicity, mutagenicity and micronucleus was begun in 2000 and is scheduled to be concluded in May, 2022. Briefly, a search of PubMed, MEDLINE, and Google Scholar for a variety of articles was performed. The results showed that there are still few studies that addressed micronuclei of oral cells in children exposed to the most diverse environmental conditions. Only environmental pollution was associated with damage to the genome of oral cells in children. Therefore, researchers need to be calibrated in cell analysis, standardization of field study protocols and the development of new research in the evaluation of children using the micronucleus test as a tool in child biomonitoring.
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Affiliation(s)
- Ingra Tais Malacarne
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Santos, SP, Brazil
| | - Maria Esther Suarez Alpire
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Santos, SP, Brazil
| | | | - Daniel Araki Ribeiro
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, UNIFESP, Santos, SP, Brazil
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Gómez-Cabrera AS, González-Santiago AE, Rodríguez-Mora JF, Zúñiga-González GM, Gómez-Meda BC, Baptista-Rosas RC, Castañeda-Arellano R, Mercado-Sesma AR, Zúñiga LY, Sánchez-Parada MG. Amelioration of Cytogenotoxic Damage in Drug Abusers Supplemented with Folic Acid. Biomedicines 2024; 12:352. [PMID: 38397954 PMCID: PMC10886587 DOI: 10.3390/biomedicines12020352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/27/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Cytogenotoxic damage caused by the consumption of legal and illegal drugs in drug abusers has been demonstrated, primarily due to alterations in their antioxidant capacity, cellular repair mechanisms, and increased production of free radicals. Folic acid shows antioxidant activity by acting as a reducing agent, neutralizing present free radicals, and reducing genomic damage. METHODS The intervention involved administering 15 mg of folic acid, divided into three doses per day, to a group of 44 drug abusers. The frequency of nuclear abnormalities (NAs) was determined; micronuclei (MNs), nuclear buds (NBUDs), binucleated cells (BNs), abnormally condensed chromatin (CC), karyorrhexis (KX), pyknotic nuclei (PNs), and karyolysis (KL) were determined at different pre-treatment (baseline) and post-treatment time points at 15 and 30 days. Additionally, a group of 44 healthy individuals was used as the control group. RESULTS We observed a statistically significant decrease in the frequency of NAs in the drug abuser group (28.45 ± 17.74 before supplementation vs. 11.18 ± 7.42 at 15 days and 9.11 ± 10.9 at 30 days of supplementation). Specifically, it decreased the frequency of NBUDs, BNs, CC, KX, and PNs (p < 0.05). CONCLUSION Our study demonstrates a clear improvement in cytogenotoxic damage in drug abusers supplemented with folic acid.
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Affiliation(s)
- Alejandro Salvador Gómez-Cabrera
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico; (A.S.G.-C.); (J.F.R.-M.)
| | - Ana Elizabeth González-Santiago
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico; (A.S.G.-C.); (J.F.R.-M.)
| | - José Francisco Rodríguez-Mora
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico; (A.S.G.-C.); (J.F.R.-M.)
| | - Guillermo Moisés Zúñiga-González
- Laboratorio de Mutagénesis, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara 44340, Jalisco, Mexico;
| | - Belinda Claudia Gómez-Meda
- Instituto de Genética Humana Dr. Enrique Corona Rivera, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Jalisco, Mexico;
| | - Raúl Cuauhtémoc Baptista-Rosas
- Departamento de Ciencias de la Salud-Enfermedad como Proceso Individual, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico (R.C.-A.); (L.Y.Z.)
- Unidad de Intervención de Medicina Crítica, Hospital General de Occidente, Secretaría de Salud Jalisco, Zapopan 45170, Jalisco, Mexico
| | - Rolando Castañeda-Arellano
- Departamento de Ciencias de la Salud-Enfermedad como Proceso Individual, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico (R.C.-A.); (L.Y.Z.)
| | - Arieh Roldán Mercado-Sesma
- Departamento de Ciencias de la Salud-Enfermedad como Proceso Individual, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico (R.C.-A.); (L.Y.Z.)
| | - Laura Yareni Zúñiga
- Departamento de Ciencias de la Salud-Enfermedad como Proceso Individual, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico (R.C.-A.); (L.Y.Z.)
| | - María Guadalupe Sánchez-Parada
- Departamento de Ciencias Biomédicas, División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá 45425, Jalisco, Mexico; (A.S.G.-C.); (J.F.R.-M.)
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Guedes Pinto T, Viana MDB, Cury PR, Martins MD, dos Santos JN, Ribeiro DA. Are Cytomorphogenetic Events Correlated with Oral Mucosal Lesions Induced by Crack Cocaine Use? A Systematic Review. PATHOPHYSIOLOGY 2023; 30:630-639. [PMID: 38133146 PMCID: PMC10748150 DOI: 10.3390/pathophysiology30040045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023] Open
Abstract
The aim of this systematic review was to answer the question of whether crack cocaine can induce cellular and molecular alterations and whether such alterations are somehow related to clinical lesions in the oral mucosa. The searches were undertaken in three electronic databases and conducted based on the PRISMA 2020 statement. Eleven studies published between 1994 and 2020 were analyzed. The quality of the included studies was assessed by two independent reviewers (TGP and DAR) through a confounder's categorization methodology, in which final ratings were attributed (strong, moderate or weak) for each study. From 11 studies included, 7 evaluated the cellular/molecular impact of the addiction in a total of 492 individuals and compared to a control (non-exposure) group (n = 472). The main tests used for cellular alteration were MN and AgNORs. Cells from crack cocaine groups exhibited increased proliferation and MN counting. Only four studies evaluated the prevalence of oral lesions. All of them showed that individuals exposed to crack cocaine presented an increased number of oral lesions. Most studies showed good quality. In conclusion, our results demonstrate that crack use may induce changes at the cellular and molecular level and also exhibit an increased number of oral lesions. However, a correlation between such changes and oral mucosa lesions still needs further investigation and elucidation through other clinical studies in humans.
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Affiliation(s)
- Thiago Guedes Pinto
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Santos 11050-020, SP, Brazil; (T.G.P.); (M.d.B.V.)
| | - Milena de Barros Viana
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Santos 11050-020, SP, Brazil; (T.G.P.); (M.d.B.V.)
| | - Patricia Ramos Cury
- Department of Dental Clinics, School of Dentistry, Federal University of Bahia, Salvador 40170-110, BA, Brazil; (P.R.C.); (J.N.d.S.)
| | - Manoela Domingues Martins
- Department of Pathology and Stomatology, School of Dentistry, Federal Universty of Rio Grande do Sul, Porto Alegre 90010-150, RS, Brazil;
| | - Jean Nunes dos Santos
- Department of Dental Clinics, School of Dentistry, Federal University of Bahia, Salvador 40170-110, BA, Brazil; (P.R.C.); (J.N.d.S.)
| | - Daniel Araki Ribeiro
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Santos 11050-020, SP, Brazil; (T.G.P.); (M.d.B.V.)
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Arbo MD, Garcia SC, Sarpa M, Da Silva Junior FM, Nascimento SN, Garcia ALH, Da Silva J. Brazilian workers occupationally exposed to different toxic agents: A systematic review on DNA damage. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 879-880:503519. [PMID: 35914865 DOI: 10.1016/j.mrgentox.2022.503519] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/23/2022] [Accepted: 06/21/2022] [Indexed: 10/17/2022]
Abstract
The evaluation of genotoxicity in workers exposed to different toxic agents is very important, especially considering the association between these exposures in a chronic context and DNA damage. Assessing biomarkers of exposure and, when possible, early biomarkers of effect, contributes to elucidating the potential toxic mechanisms involved in genotoxicity and its contribution to chronic non-communicable diseases. In Brazil, the biggest country in South America, workers are exposed to hazardous physical and chemical agents. Considering that these exposures occur, in most cases, throughout the worker's whole life, this is an important public health concern in Brazil. Therefore, this systematic review aims to analyze occupational exposure to chemical and physical agents and the association with DNA damage in studies carried out in Brazil from 1980 to 2021. A systematic and comprehensive literature search was performed in different databases based on occupational exposure to chemical and physical agents and DNA damage. Only full articles on studies that investigated experimental evidence on occupational exposure in Brazil and assessed DNA damage were included, amounting to 89 articles. Five main occupational exposure groups were identified: pesticides (36%), organic solvents (20%), dust and particles (16%), metals (11%), and ionizing radiation (6%). Another group called "others" included studies (11%) that did not fall into these main groups. It was found that comet assay and micronucleus tests are the most adopted methods to detect DNA damage. Occupational exposures were most associated with DNA damage. However, further improvements in study design would be needed to better characterize the association between biomonitoring and DNA damage, particularly to account for confounding factors.
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Ernst B, Setayesh T, Nersesyan A, Kundi M, Fenech M, Bolognesi C, Mišík M, Ghane M, Mousavi SF, Knasmüller S. Investigations concerning the impact of consumption of hot beverages on acute cytotoxic and genotoxic effects in oral mucosa cells. Sci Rep 2021; 11:23014. [PMID: 34836993 PMCID: PMC8626505 DOI: 10.1038/s41598-021-01995-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 11/01/2021] [Indexed: 12/09/2022] Open
Abstract
Consumption of very hot beverages and foods increases the incidence of oral and esophageal cancer but the mechanisms are not known and the critical temperature is not well defined. We realized a study with exfoliated cells from the oral cavity of individuals (n = 73) that live in an area in Iran which has the highest incidence of EC worldwide. Consumption of beverages at very high temperatures is a characteristic feature of this population. We analyzed biomarkers which are (i) indicative for genetic instability (micronuclei that are formed as a consequence of chromosomal damage, nuclear buds which are a consequence of gene amplifications and binucleated cells which reflect mitotic disturbances), (ii) markers that reflect cytotoxic effects (condensed chromatin, karyorrhectic, karyolitic and pyknotic cells), (iii) furthermore, we determined the number of basal cells which is indicative for the regenerative capacity of the buccal mucosa. The impact of the drinking temperature on the frequencies of these parameters was monitored with thermometers. We found no evidence for induction of genetic damage but an increase of the cytotoxic effects with the temperature was evident. This effect was paralleled by an increase of the cell division rate of the mucosa which was observed when the temperature exceeded 60 °C. Our findings indicate that cancer in the upper digestive tract in drinkers of very hot beverages is not caused by damage of the genetic material but by an increase of the cell division rate as a consequence of cytotoxic effects which take place at temperatures over 60 °C. It is known from earlier experiments with rodents that increased cell divisions lead to tumor promotion in the esophagus. Our findings provide a mechanistic explanation and indicate that increased cancer risks can be expected when the drinking temperature of beverages exceeds 60 °C.
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Affiliation(s)
- Benjamin Ernst
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Tahereh Setayesh
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Armen Nersesyan
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Michael Kundi
- Center for Public Health, Medical University of Vienna, Vienna, Austria
| | - Michael Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
- Centre of Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, 43650, Bangi, Selangor, Malaysia
| | - Claudia Bolognesi
- Environmental Carcinogenesis Unit, Ospedale Policlinico San Martino, Genoa, Italy
| | - Miroslav Mišík
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
| | - Masood Ghane
- Department of Microbiology, Islamic Azad University of Tonekabon, Mazandaran, Iran
| | | | - Siegfried Knasmüller
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria.
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Short Assay Design for Micronucleus Detection in Human Lymphocytes. BIOMED RESEARCH INTERNATIONAL 2021; 2021:2322257. [PMID: 34552982 PMCID: PMC8452413 DOI: 10.1155/2021/2322257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022]
Abstract
There has been a constant need to develop new and faster cytogenetic assays to measure the instability induced by genotoxic agents in the field of cytogenetic research, an example of which is the micronucleus assay. Micronuclei are fragments or complete chromosomes that remain in the cytoplasm during mitosis. With their high sensitivity and specificity detection, their presence can indicate environmental and occupational genotoxic effects. However, the prolonged periods of cell incubation this assay necessitates are costly and extensive. Hence, it is essential to develop an improved assay that can achieve standardization by being reproducible in practice. The standard protocol for the detection of micronuclei in lymphocytes uses a total assay time of 72 hours. Theoretically, it is possible to reduce the incubation period, and consequently, the total assay time, considering a lymphocyte, completes its mitosis in 24 hours. This study, after careful review of literature, proposes an experimental design to reduce the incubation period and demonstrates its usefulness in practice through the design of a collaborative trial.
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Nagy K, Argaw Tessema R, Szász I, Smeirat T, Al Rajo A, Ádám B. Micronucleus Formation Induced by Glyphosate and Glyphosate-Based Herbicides in Human Peripheral White Blood Cells. Front Public Health 2021; 9:639143. [PMID: 34109144 PMCID: PMC8180907 DOI: 10.3389/fpubh.2021.639143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/23/2021] [Indexed: 11/28/2022] Open
Abstract
Glyphosate is the most commonly used herbicide around the world, which led to its accumulation in the environment and consequent ubiquitous human exposure. Glyphosate is marketed in numerous glyphosate-based herbicide formulations (GBHs) that include co-formulants to enhance herbicidal effect of the active ingredient, but are declared as inert substances. However, these other ingredients can have biologic activity on their own and may interact with the glyphosate in synergistic toxicity. In this study, we focused to compare the cytogenetic effect of the active ingredient glyphosate and three marketed GBHs (Roundup Mega, Fozat 480, and Glyfos) by investigating cytotoxicity with fluorescent co-labeling and WST-1 cell viability assay as well as genotoxicity with cytokinesis block micronucleus assay in isolated human mononuclear white blood cells. Glyphosate had no notable cytotoxic activity over the tested concentration range (0-10,000 μM), whereas all the selected GBHs induced significant cell death from 1,000 μM regardless of metabolic activation (S9). Micronucleus (MN) formation induced by glyphosate and its formulations at sub-cytotoxic concentrations (0-100 μM) exhibited a diverse pattern. Glyphosate caused statistically significant increase of MN frequency at the highest concentration (100 μM) after 20-h exposure. Contrarily, Roundup Mega exerted a significant genotoxic effect at 100 μM both after 4- and 20-h exposures; moreover, Glyfos and Fozat 480 also resulted in a statistically significant increase of MN frequency from the concentration of 10 μM after 4-h and 20-h treatment, respectively. The presence of S9 had no effect on MN formation induced by either glyphosate or GBHs. The differences observed in the cytotoxic and genotoxic pattern between the active principle and formulations confirm the previous concept that the presence of co-formulants in the formulations or the interaction of them with the active ingredient is responsible for the increased toxicity of herbicide products, and draw attention to the fact that GBHs are still currently in use, the toxicity of which rivals that of POEA-containing formulations (e.g., Glyfos) already banned in Europe. Hence, it is advisable to subject them to further comprehensive toxicological screening to assess the true health risks of exposed individuals, and to reconsider their free availability to any users.
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Affiliation(s)
- Károly Nagy
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Roba Argaw Tessema
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - István Szász
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Tamara Smeirat
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Alaa Al Rajo
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Balázs Ádám
- Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- College of Medicine and Health Sciences, Institute of Public Health, United Arab Emirates University, Al Ain, United Arab Emirates
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Yoithapprabhunath TR, Ganapathy N, Renugadevi S, Rafath JM, Aparna V, Dineshshankar J. Cytogenetic analysis of genetic damage in young individuals exposed to chronic mechanical irritation in the lateral border of the tongue due to sharp teeth - a novel study. Med Pharm Rep 2021; 94:88-93. [PMID: 33629054 PMCID: PMC7880076 DOI: 10.15386/mpr-1567] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/11/2020] [Accepted: 04/23/2020] [Indexed: 12/24/2022] Open
Abstract
Background Chronic inflammation is estimated to contribute to approximately 25% of human cancers. Inflammation can be induced by chronic mechanical irritation which can lead to oral pre-cancer and oral cancer. Though many studies have been conducted to identify the genetic damage in oral cancer or dysplastic stages, no study has been conducted so far on early detection of genetic damage in healthy individuals presenting with sharp teeth in contact with the lateral border of the tongue. Objective The study is aimed at analyzing the genetic damage (micronuclei) in healthy individuals with sharp teeth in contact with the lateral border of the tongue causing chronic mechanical irritation. Methods The study group included 75 clinically healthy individuals with sharp teeth in contact with the lateral border of the tongue and 25 clinically healthy individuals with normal teeth in contact with the lateral border of the tongue as a control group. Brush samples of epithelial cells were collected, then spread over clean glass slide and fixed in 100% alcohol, stained with rapid PAP and analyzed under the light microscope. The exfoliated cells were examined to detect micronuclei. Results Micronuclei frequency was found to be increased in the study group where sharp teeth were in contact with the lateral border of the tongue of healthy individuals without deleterious habits such as usage of tobacco in smoking/smokeless form, areca nut chewing or alcohol consumption. Conclusions Cytogenetic analysis is a simple and scantly invasive technique allowing clinicians the early detection of DNA damage in patients with sharp teeth and subsequently preventing carcinogenesis by proper treatment and follow-up.
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Affiliation(s)
| | - Nalliappan Ganapathy
- Oral and Maxillofacial Pathology Department, Vivekanandha Dental College for Women, Tamilnadu, India
| | - Seeni Renugadevi
- Oral and Maxillofacial Pathology Department, Vivekanandha Dental College for Women, Tamilnadu, India
| | - Jalaludheen Misbha Rafath
- Oral and Maxillofacial Pathology Department, Vivekanandha Dental College for Women, Tamilnadu, India
| | - Vishnuvarthan Aparna
- Oral and Maxillofacial Pathology Department, Vivekanandha Dental College for Women, Tamilnadu, India
| | - Janardhanam Dineshshankar
- Oral and Maxillofacial Pathology Department, Vivekanandha Dental College for Women, Tamilnadu, India
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Leonardi S, Poma AM, Colafarina S, D'Aloisio F, Scatigna M, Zarivi O, Mastrantonio R, Tobia L, Fabiani L. Early genotoxic damage through micronucleus test in exfoliated buccal cells and occupational dust exposure in construction workers: a cross-sectional study in L'Aquila, Italy. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:110989. [PMID: 32888600 DOI: 10.1016/j.ecoenv.2020.110989] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/29/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
AIM The city of L'Aquila (central Italy) was hit by a strong earthquake in 2009 that caused the collapse of several buildings, deaths and injured people. In the following years, a great number of building sites were activated, building workers resulted intensely exposed and represent a relevant target for research on environmental mutagenesis and epidemiological surveillance. Cells of buccal mucosa are considered an appropriate site for early detecting of cytogenetic damage, since it represents the first barrier in inhalation or ingestion and can metabolize carcinogenic agents into reactive chemicals. Our study is aimed 1) at comparing the early genotoxic damage as measured by the buccal mucosa micronucleus test in two subgroups of workers defined by different occupational exposure and 2) at evaluating possible confounding variables such as lifestyle factors. METHODS AND RESULTS A cross-sectional study was conducted in L'Aquila, on 24 outdoor workers (OWs) highly exposed on the construction sites and 26 indoor workers (IWs), all subjected to the compulsory occupational surveillance system, in the period 2017-2018. Buccal cells samples were collected and, based on the Micronucleus test, the exfoliated cells were classified in respect of nuclear changes observed. Moreover, a self-report questionnaire composed of 84 items, was administered to the workers. RESULTS Significant differences were observed between Exp+ (OWs) and Exp- (IWs) in the number of the analyzed cells (expressed as mean value out of 1000 cells): respectively 954.46 vs 990.06 normal cells, (p < 0.001); 19.79 vs 4.95 micronucleated cells, as marker of chromosomal damage (p < 0.001); 13.93 vs 8.96 binucleated cells, as marker of failed cytokinesis (p < 0.001); 2.09 vs 1.18 karyolytic cells, as marker of cell death and damaged DNA (p < 0.05). According with a multivariate regression analysis, in addition to the job exposure (OW vs IW, beta = 12.221, p < 0.001), the only variable independently associated with an increase in Micronuclei (MNs) is the smoking habit (OWs vs IWs, beta = 6.683, p < 0.001) which, even if not associated with dust exposure, worsens cell integrity. Moreover, this worsening effect is weaker in workers not exposed to the site dust (moderation effect). Within social demographic factors, the high educational level only apparently seems to affect MNs number: even if unbalanced in favor of IWs vs OWs, this variable resulted a confounder, since its effect disappears when the interaction between these two factors is considered, because it is a covariate of smoking habit as well as of the job condition. CONCLUSION Despite some limitation, our findings clearly confirm the role of occupational exposure as a marker of cytogenetic damage associated with MNs number in construction workers. Moreover, smoking status appears as the only other investigated factor independently associated to the outcome. The statistical model, in addition, highlights possible moderation and confounding effects, such as interaction between smoking and occupational exposure and the unbalanced school education level in workers. Micronucleus test in exfoliated buccal cells would be considered a suitable method for studying the early genotoxic damage in the construction occupational setting as well as in evaluating the efficacy of preventive practices.
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Affiliation(s)
- Sara Leonardi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Anna Mg Poma
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
| | - Sabrina Colafarina
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Francesco D'Aloisio
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Maria Scatigna
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Osvaldo Zarivi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Riccardo Mastrantonio
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Loreta Tobia
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Leila Fabiani
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
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Camporez D, Belcavello L, Almeida JFF, Silva-Sena GG, Pimassoni LHS, Morelato RL, do Carmo Pimentel Batitucci M, de Paula F. Positive association of a Sirt1 variant and parameters of oxidative stress on Alzheimer’s disease. Neurol Sci 2020; 42:1843-1851. [DOI: 10.1007/s10072-020-04704-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 08/29/2020] [Indexed: 12/13/2022]
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12
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Hutter HP, Poteser M, Lemmerer K, Wallner P, Shahraki Sanavi S, Kundi M, Moshammer H, Weitensfelder L. Indicators of Genotoxicity in Farmers and Laborers of Ecological and Conventional Banana Plantations in Ecuador. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17041435. [PMID: 32102275 PMCID: PMC7068563 DOI: 10.3390/ijerph17041435] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/19/2020] [Accepted: 02/20/2020] [Indexed: 02/02/2023]
Abstract
Banana farming represents an important segment of agricultural production in Ecuador. The health of farmworkers might be compromised by the extensive use of pesticides in plantations applied under poorly regulated conditions. Due to an increased awareness of pesticide-related problems for nature, as well as for worker and consumer health, ecological farming has been established in some plantations of Ecuador. We set out to investigate the occupational health of workers in both conventional and ecological farming. Nuclear anomalies in buccal epithelial cells were used as short-term indicators for genotoxicity and a potentially increased cancer risk in the two groups of farmworkers. By application of the Buccal Micronucleus Cytome Assay (BMCA), we found the frequency of micronuclei in conventional pesticide using farmworkers significantly increased by 2.6-fold, and other nuclear anomalies significantly increased by 24% to 80% (except pyknosis with a non-significant increase of 11%) compared to the farmworkers on ecological plantations. These results demonstrate that ecological farming may provide an alternative to extensive pesticide use with significantly reduced indicators of cancer risk. In conventional farming, improvements in education and instruction regarding the safe handling of pesticides and protective equipment, as well as regulatory measures, are urgently needed.
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Hopf NB, Danuser B, Bolognesi C, Wild P. Age related micronuclei frequency ranges in buccal and nasal cells in a healthy population. ENVIRONMENTAL RESEARCH 2020; 180:108824. [PMID: 31634720 DOI: 10.1016/j.envres.2019.108824] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 10/08/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Micronuclei (MNs) are extranuclear DNA-containing bodies and determining MN frequencies is a measure of genomic instability. An age-related increase in MN frequencies in lymphocytes has been quantified, but this effect has not yet been measured in nasal and buccal cells. METHODS We determined the effect of age on the MN frequency distributions in buccal and nasal cells among a sample of a general adult population in Switzerland. To maximize the power to detect an effect of age in our population study, we recruited preferentially younger and older working age adults. We harvested buccal and nasal cells from 32 young (19-36 year) and 33 working age (47-71 years) participants. The collected cells were washed, centrifuged, and stained (Feulgen) before microscopic manual counting in 2000 cells. Based on these results, we developed an age-dependent background MN frequency chart to help interpret an individual's MN frequency score as an early signal for the effect of genotoxic exposure. RESULTS MN frequencies were respectively 0.53‰ and 0.47‰ for buccal and nasal among the younger and 0.87‰ and 1.03‰ in the older working age group. This corresponded to a multiplicative slope of 14% and 20% per 10 years of age for buccal and nasal cells, respectively. CONCLUSION Based on our study results, we are able to propose an approach for interpreting an individual's MN screening results.
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Affiliation(s)
- Nancy B Hopf
- Center for Primary Care and Public Health (Unisanté), Formerly IST, Institute for Work and Health, University of Lausanne, Lausanne, Epalinges, Switzerland.
| | - Brigitta Danuser
- Center for Primary Care and Public Health (Unisanté), Formerly IST, Institute for Work and Health, University of Lausanne, Lausanne, Epalinges, Switzerland.
| | - Claudia Bolognesi
- Environmental Carcinogenesis Unit Ospedale Policlinico San Martino, Genoa, Italy.
| | - Pascal Wild
- Center for Primary Care and Public Health (Unisanté), Formerly IST, Institute for Work and Health, University of Lausanne, Lausanne, Epalinges, Switzerland; INRS, French Institute for Research and Safety, Vandoeuvre, France.
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14
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ZIZZA A, GRIMA P, ANDREASSI M, TUMOLO M, BORGHINI A, DE DONNO A, NEGRO P, GUIDO M. HIV infection and frequency of micronucleus in human peripheral blood cells. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2019; 60:E191-E196. [PMID: 31650053 PMCID: PMC6797881 DOI: 10.15167/2421-4248/jpmh2019.60.3.1054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 07/12/2019] [Indexed: 01/17/2023]
Abstract
Purpose People living with HIV have higher rates of malignancies than the general population in the era of active antiretroviral therapy (ART). Genotoxic effects of HIV infection and/or ART that can induce neoplastic development are not yet well known. A prospective cohort study to investigate DNA damage measured through the micronuclei (MN) frequency in HIV-patients has been performed. Methods Peripheral blood mononuclear cells (PBMC) were isolated from 52 HIV-patients treated with ART and 55 healthy controls. Results By the comparison of MN frequency, a significant difference between HIV-patients (15.5 ± 9.8) and controls (6.0 ± 3.6) (p < 0.001) has been revealed. In univariate linear regression analysis, HCV infection (r = 0.31; p < 0.001), HIV-RNA (r = 0.29; p < 0.03) and duration of infection (r = – 0.16; p < 0.25) were associated with MN frequency; while only viral load (VL) significantly correlates (r = 0.29; p < 0.05) in a multiple regression model. Conclusions The association of VL with MN frequency supports a genotoxic effect of HIV infection.
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Affiliation(s)
- A. ZIZZA
- Institute of Clinical Physiology, National Research Council, Lecce, Italy
- Correspondence: Antonella Zizza, Institute of Clinical Physiology, National Research Council, via Prov.le Lecce-Monteroni, 73100 Lecce, Italy - Tel. +39 0832 422306 - Fax +39 0832 422340 -
| | - P. GRIMA
- Infectious Diseases Operative Unit, Vito Fazzi Hospital, Lecce, Italy
| | - M.G. ANDREASSI
- Genetics Unit, Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - M.R. TUMOLO
- Institute for Research on Population and Social Policies, National Research Council, Brindisi, Italy
| | - A. BORGHINI
- Genetics Unit, Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - A. DE DONNO
- Laboratory of Hygiene, Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
- Inter-University Centre of Research on Influenza and other Transmissible Infections (CIRI-IT), Genoa, Italy
| | - P. NEGRO
- Immunohaematology and Transfusion Medicine Unit, Vito Fazzi Hospital, Lecce, Italy
| | - M. GUIDO
- Laboratory of Hygiene, Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
- Inter-University Centre of Research on Influenza and other Transmissible Infections (CIRI-IT), Genoa, Italy
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Wunnapuk K, Pothirat C, Manokeaw S, Phetsuk N, Chaiwong W, Phuackchantuck R, Prapamontol T. PM 10-related DNA damage, cytokinetic defects, and cell death in COPD patients from Chiang Dao district, Chiang Mai, Thailand. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25326-25340. [PMID: 31254199 DOI: 10.1007/s11356-019-05641-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
Exposure to PM10 generated by biomass burning may reduce lung function and induce cytogenetic effects, especially in chronic obstructive pulmonary disease patients. This study investigated the frequency of DNA-damaged cells, cells with cytokinetic defect, and different types of cell death using a buccal micronucleus cytome assay. The correlations between each biomarker and lung function were investigated. The changes in these biomarkers associated with high pollutant levels (PM10 > 50 μg/m3) and low pollutant levels (PM10 < 50 μg/m3) were evaluated to explore whether PM10 exposure induced genotoxic damages and cytokinetic defects in COPD patients when the daily average PM10 concentration reached above 50 μg/m3. Fifty-eight COPD patients and 26 healthy subjects living in Chiang Dao district, Chiang Mai, Thailand, were recruited in this study. The results revealed that buccal cells with micronuclei (high vs low 1.09 ± 1.95 vs 0.29 ± 0.64 in COPD patients) and binucleated cells (high vs low 11.43 ± 18.68 vs 1.60 ± 1.31 and 7.77 ± 12.76 vs 1.00 ± 1.17 in COPD and healthy subjects, respectively) observed during the high pollutant period were more frequent than in the low pollutant period. Moreover, exposure to PM10 increased the risk of micronucleus induction in COPD patients 295.23-fold.
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Affiliation(s)
- Klintean Wunnapuk
- Division of Toxicology, Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chaicharn Pothirat
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand.
| | - Siriphorn Manokeaw
- Division of Toxicology, Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nittaya Phetsuk
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand
| | - Warawut Chaiwong
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand
| | - Rochana Phuackchantuck
- Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Tippawan Prapamontol
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
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Dong J, Wang JQ, Qian Q, Li GC, Yang DQ, Jiang C. Micronucleus assay for monitoring the genotoxic effects of arsenic in human populations: A systematic review of the literature and meta-analysis. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2019; 780:1-10. [DOI: 10.1016/j.mrrev.2019.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 02/02/2019] [Accepted: 02/05/2019] [Indexed: 01/22/2023]
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17
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Nagy K, Zheng C, Bolognesi C, Ádám B. Interlaboratory evaluation of the genotoxic properties of pencycuron, a commonly used phenylurea fungicide. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 647:1052-1057. [PMID: 30180313 DOI: 10.1016/j.scitotenv.2018.08.067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 08/02/2018] [Accepted: 08/04/2018] [Indexed: 06/08/2023]
Abstract
Pencycuron, a phenylurea-type antifungal agent, is used in agriculture worldwide for inhibiting the growth of various fungal pathogens of crops. Pencycuron residues were found in vegetables, soil and drinking water. Accordingly, both occupational and consumer exposure can be expected and may be significant. However, human toxicity studies on its genotoxic, mutagenic or carcinogenic potential are lacking. Therefore, a collaborative study was performed in two laboratories to investigate whether pencycuron exposure can induce DNA damage. The genotoxic effect of 0-100 μg/ml pencycuron in in vitro cultures of human mononuclear white blood cells (MWBCs) and human hepatocytes (HepG2) was detected by cytokinesis-block micronucleus assay and comet assay. The combined results of the two labs showed a dose-dependent DNA damage detected by micronucleus frequency, which reached statistical significance at 100 μg/ml concentration after 21-h exposure in HepG2 cells (p = 0.048). Significant genotoxic effect could also be observed in the comet assay from 50 μg/ml concentration in MWBCs, and at 100 μg/ml concentration in HepG2 cells in one lab. Nevertheless, this finding was not confirmed by the other lab in HepG2 cells, where Fpg-dependent oxidative DNA damage could also not be detected. The results indicate that pencycuron may have DNA-damaging potential as well as point out inter-laboratory variability that calls for further studies to confirm the genotoxicity of this fungicide.
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Affiliation(s)
- Károly Nagy
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary.
| | - Congying Zheng
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - Claudia Bolognesi
- Environmental Carcinogenesis Unit, Ospedale Policlinico San Martino IRCCS, Genoa, Italy
| | - Balázs Ádám
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
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Espitia-Pérez L, da Silva J, Brango H, Espitia-Pérez P, Pastor-Sierra K, Salcedo-Arteaga S, de Souza CT, Dias JF, Hoyos-Giraldo LS, Gómez-Pérez M, Salcedo-Restrepo D, Henriques JA. Genetic damage in environmentally exposed populations to open-pit coal mining residues: Analysis of buccal micronucleus cytome (BMN-cyt) assay and alkaline, Endo III and FPG high-throughput comet assay. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 836:24-35. [DOI: 10.1016/j.mrgentox.2018.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 04/25/2018] [Accepted: 06/01/2018] [Indexed: 12/22/2022]
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Laanani I, Boutelis S, Bennoune O, Belaaloui G. Buccal micronucleus cytome biomarkers in Algerian couples with idiopathic infertility. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 835:32-35. [DOI: 10.1016/j.mrgentox.2018.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/01/2018] [Accepted: 08/24/2018] [Indexed: 11/28/2022]
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20
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Latini G, De Felice C, Barducci A, Dipaola L, Gentile M, Andreassi MG, Correale M, Bianciardi G. Clinical biomarkers for cancer recognition and prevention: A novel approach with optical measurements. Cancer Biomark 2018; 22:179-198. [PMID: 29689703 DOI: 10.3233/cbm-170050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cancer is the most important cause of death worldwide, and early cancer detection is the most fundamental factor for efficacy of treatment, prognosis, and increasing survival rate. Over the years great effort has been devoted to discovering and testing new biomarkers that can improve its diagnosis, especially at an early stage. Here we report the potential usefulness of new, easily applicable, non-invasive and relatively low-cost clinical biomarkers, based on abnormalities of oral mucosa spectral reflectance and fractal geometry of the vascular networks in several different tissues, for identification of hereditary non-polyposis colorectal cancer carriers as well for detection of other tumors, even at an early stage. In the near future the methodology/technology of these procedures should be improved, thus making possible their applicability worldwide as screening tools for early recognition and prevention of cancer.
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Affiliation(s)
- Giuseppe Latini
- Neonatal Intensive Care Unit, Perrino Hospital Brindisi-Italy, Brindisi, Italy
| | - Claudio De Felice
- Neonatal Intensive Care Unit, Azienda Ospedaliera Universitaria Senese, Policlinico "Le Scotte" viale Bracci, Siena, Italy
| | | | - Lucia Dipaola
- Research Unit of Lecce, Clinical Physiology Institute, National Research Council of Italy, Rome, Italy
| | - Mattia Gentile
- Medical Genetics Unit, IRCCS S. De Bellis, Castellana Grotte, Bari, Italy
| | - Maria Grazia Andreassi
- Genetics Research Unit, Clinical Physiology Institute, National Research Council of Italy, Rome, Italy
| | - Mario Correale
- Clinical Pathology Unit, IRCCS S. De Bellis, Castellana Grotte, Bari, Italy
| | - Giorgio Bianciardi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
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22
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Bolognesi C, Knasmueller S, Nersesyan A, Roggieri P, Ceppi M, Bruzzone M, Blaszczyk E, Mielzynska-Svach D, Milic M, Bonassi S, Benedetti D, Da Silva J, Toledo R, Salvadori DMF, Groot de Restrepo H, Filipic M, Hercog K, Aktas A, Burgaz S, Kundi M, Grummt T, Thomas P, Hor M, Escudero-Fung M, Holland N, Fenech M. Inter-laboratory consistency and variability in the buccal micronucleus cytome assay depends on biomarker scored and laboratory experience: results from the HUMNxl international inter-laboratory scoring exercise. Mutagenesis 2017; 32:257-266. [PMID: 27671865 DOI: 10.1093/mutage/gew047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The buccal micronucleus cytome (BMNcyt) assay in uncultured exfoliated epithelial cells from oral mucosa is widely applied in biomonitoring human exposures to genotoxic agents and is also proposed as a suitable test for prescreening and follow-up of precancerous oral lesions. The main limitation of the assay is the large variability observed in the baseline values of micronuclei (MNi) and other nuclear anomalies mainly related to different scoring criteria. The aim of this international collaborative study, involving laboratories with different level of experience, was to evaluate the inter- and intra-laboratory variations in the BMNcyt parameters, using recently implemented guidelines, in scoring cells from the same pooled samples obtained from healthy subjects (control group) and from cancer patients undergoing radiotherapy (treated group). The results indicate that all laboratories correctly discriminated samples from the two groups by a significant increase of micronucleus (MN) and nuclear bud (NBUD) frequencies and differentiated binucleated (BN) cells, associated with the exposure to ionizing radiation. The experience of the laboratories was shown to play an important role in the identification of the different cell types and nuclear anomalies. MN frequency in differentiated mononucleated (MONO) and BN cells showed the greatest consistency among the laboratories and low variability was also detected in the frequencies of MONO and BN cells. A larger variability was observed in classifying the different cell types, indicating the subjectivity in the interpretation of some of the scoring criteria while reproducibility of the results between scoring sessions was very good. An inter-laboratory calibration exercise is strongly recommended before starting studies with BMNcyt assay involving multiple research centers.
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Affiliation(s)
- Claudia Bolognesi
- Environmental Carcinogenesis Unit, IRCCS AOU San Martino-IST, L.go Rosanna Benzi, 10 16132 Genoa, Italy
| | - Siegfried Knasmueller
- Department of Chemical Safety and Cancer Prevention, Institute of Cancer Research, Medical University of Vienna, Austria Borschkegasse 8A, 1090 Vienna, Austria
| | - Armen Nersesyan
- Department of Chemical Safety and Cancer Prevention, Institute of Cancer Research, Medical University of Vienna, Austria Borschkegasse 8A, 1090 Vienna, Austria
| | - Paola Roggieri
- Environmental Carcinogenesis Unit, IRCCS AOU San Martino-IST, L.go Rosanna Benzi, 10 16132 Genoa, Italy
| | - Marcello Ceppi
- Clinical Epidemiology Unit, IRCCS AOU San Martino-IST, L.go Rosanna Benzi, 10 16132 Genoa, Italy
| | - Marco Bruzzone
- Clinical Epidemiology Unit, IRCCS AOU San Martino-IST, L.go Rosanna Benzi, 10 16132 Genoa, Italy
| | - Ewa Blaszczyk
- Environmental Toxicology Group, Institute for Ecology of Industrial Areas, Kossutha 6 Street, 40-844 Katowice, Poland
| | - Danuta Mielzynska-Svach
- The Witold Pilecki State School of Higher Education, Maksymiliana Kolbego 8 Street, Oswiecim 32-600, Poland
| | - Mirta Milic
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000 Zagreb, Croatia.,Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166 Rome, Italy
| | - Stefano Bonassi
- Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166 Rome, Italy.,Department of Human Sciences and Quality of Life Promotion, San Raffaele University, Via di Val Cannuta, 247, 00166 Rome, Italy
| | - Danieli Benedetti
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001, 92425-900 Canoas-RS, Brazil
| | - Juliana Da Silva
- Laboratory of Genetic Toxicology, Lutheran University of Brazil (ULBRA), Av. Farroupilha, 8001, 92425-900 Canoas-RS, Brazil
| | - Raphael Toledo
- Laboratory of Toxicogenomics and Nutrigenomics, Botucatu Medical School, UNESP - São Paulo State University, Rua Mario Rubens Montenegro, S/N, Rubião Jr, 18618-687, Botucatu-SP, Brazil
| | - Daisy Maria Fávero Salvadori
- Laboratory of Toxicogenomics and Nutrigenomics, Botucatu Medical School, UNESP - São Paulo State University, Rua Mario Rubens Montenegro, S/N, Rubião Jr, 18618-687, Botucatu-SP, Brazil
| | - Helena Groot de Restrepo
- Universidad de los Andes Laboratorio de Genética Humana (LGH), Carrera 1E No, 18A-10 Bogotá, Colombia
| | - Metka Filipic
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Vecna pot 111, 1000 Ljubljana, Slovenia
| | - Klara Hercog
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Vecna pot 111, 1000 Ljubljana, Slovenia
| | - Ayça Aktas
- Faculty of Pharmacy, Department of Toxicology, Gazi University 06330, Hipodrom, Ankara, Turkey
| | - Sema Burgaz
- Faculty of Pharmacy, Department of Toxicology, Gazi University 06330, Hipodrom, Ankara, Turkey
| | - Michael Kundi
- Institute of Environmental Health, Medical University of Vienna, Kinderspitalgasse 15, 1090 Vienna, Austria
| | - Tamara Grummt
- German Federal Environment Agency, Heinrich-Heine-Straße 12, 08645 Bad Elster, Germany
| | - Philip Thomas
- Genome Health and Personalised Nutrition, CSIRO Health and Biosecurity, Gate 13, Kintore Avenue, South Australia 5000, Australia and
| | - Maryam Hor
- Genome Health and Personalised Nutrition, CSIRO Health and Biosecurity, Gate 13, Kintore Avenue, South Australia 5000, Australia and
| | - Maria Escudero-Fung
- School of Public Health, Center for Environmental Research and Children's Health, University of California, Berkeley, 733 University Hall, Berkeley, CA 94720-7360, USA
| | - Nina Holland
- School of Public Health, Center for Environmental Research and Children's Health, University of California, Berkeley, 733 University Hall, Berkeley, CA 94720-7360, USA
| | - Michael Fenech
- Genome Health and Personalised Nutrition, CSIRO Health and Biosecurity, Gate 13, Kintore Avenue, South Australia 5000, Australia and
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Martinez-Valenzuela C, Soto FB, Waliszewski SM, Meza E, Arroyo SG, Martínez LDO, Meraz EA, Caba M. Induced cytotoxic damage by exposure to gasoline vapors: a study in Sinaloa, Mexico. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:539-546. [PMID: 27734313 DOI: 10.1007/s11356-016-7821-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 10/03/2016] [Indexed: 06/06/2023]
Abstract
Gasoline is a blend of organic compounds used in internal combustion engines. Gasoline-station attendants are exposed to gasoline vapors, which pose a potentially mutagenic risk. According to the International Agency for Research on Cancer, exposure to gasoline and engine exhaust is possibly carcinogenic to humans. We determined the frequency of micronucleus and other nuclear abnormalities, such as pyknotic nuclei, chromatin condensation, cells with nuclear buds, karyolytic cells, karyorrhexis, and binucleated cells in buccal mucosal smears of 60 gasoline-station attendants and 60 unexposed controls. In addition, we explored if factors such as smoking habits, alcohol consumption, and worked years exert an additional synergistic cytotoxic effect. There were statistically significant higher frequencies (p < 0.05) of nuclear abnormalities among exposed attendants compared to the controls. No statistical significant (p > 0.05) additional effect of lifestyle habits such as smoking and alcohol consumption or worked years on the cytotoxicity was observed. The results showed that from the beginning exposure to gasoline vapors increased the frequency of nuclear abnormalities in buccal epithelial cells. Our results provide valuable information on cytotoxic damage for an early pre-symptomatic diagnosis.
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Affiliation(s)
- Carmen Martinez-Valenzuela
- Instituto de Investigación en Ambiente y Salud, Universidad de Occidente, Boulevard Macario Gaxiola y Carretera Internacional, Los Mochis, Sinaloa, Mexico.
| | - Fernanda Balderrama Soto
- Instituto de Investigación en Ambiente y Salud, Universidad de Occidente, Boulevard Macario Gaxiola y Carretera Internacional, Los Mochis, Sinaloa, Mexico
| | - Stefan M Waliszewski
- Centro de Investigaciones Biomédicas, Universidad Veracruzana, Xalapa, Ver, Mexico
| | - Enrique Meza
- Centro de Investigaciones Biomédicas, Universidad Veracruzana, Xalapa, Ver, Mexico
| | - Sandra Gómez Arroyo
- Centro de Ciencias de la Atmósfera, UNAM, Circuito Exterior Ciudad Universitaria, 04510, Coyoacán, Mexico
| | - Luis Daniel Ortega Martínez
- Instituto de Investigación en Ambiente y Salud, Universidad de Occidente, Boulevard Macario Gaxiola y Carretera Internacional, Los Mochis, Sinaloa, Mexico
| | - Eliakym Arambula Meraz
- Laboratorio de Genética y Biología Molecular, Maestría en Ciencias Biomédicas, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Av. de las Américas y Universitarios s/n Ciudad Universitaria, 80010, Culiacán, Sinaloa, Mexico
| | - Mario Caba
- Centro de Investigaciones Biomédicas, Universidad Veracruzana, Xalapa, Ver, Mexico
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Costa S, Ceppi M, Costa C, Silva S, Pereira C, Laffon B, Bonassi S, Teixeira JP. The cytokinesis-block micronucleus (CBMN) assay in human populations exposed to styrene: A systematic review and meta-analysis. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:92-105. [DOI: 10.1016/j.mrrev.2016.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 06/15/2016] [Accepted: 06/18/2016] [Indexed: 11/30/2022]
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25
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Cao Y, Yang L, Feng N, Shi O, Xi J, You X, Yin C, Yang H, Horibata K, Honma M, Qian B, Weng W, Luan Y. A population study using the human erythrocyte PIG-A assay. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2016; 57:605-614. [PMID: 27581231 DOI: 10.1002/em.22040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/02/2016] [Accepted: 08/02/2016] [Indexed: 06/06/2023]
Abstract
Erythrocyte-based PIG-A assay is sensitive and reliable in detecting exposure to mutagenetic agents in animal studies, but there are few data from human populations. In this study, we employed a method for detecting CD59 phenotypic variants, resulting from mutation in the PIG-A gene, in human red blood cells (RBCs), and determined the CD59-deficient RBC (RBCCD59- ) frequencies in 217 subjects from general population. The majority of subjects had a relatively low mutant frequencies (MFs) (average, 5.25 ± 3.6 × 10-6 , median, 4.38 × 10-6 , for all subjects), but with males having a significantly greater MFs (5.97 ± 4.0 × 10-6 ) than females (4.19 ± 2.5 ×10-6 ). There was no correlation between MFs and age. In addition, MFs showed no difference between smoker and nonsmoker, and also no association with smoke duration in male subjects. However, there was a significant correlation between cigarette-pack-years which indicated that the MF was only slightly elevated with the increase of cigarette-pack-years. Moreover, intraindividual variations were investigated in three volunteer subjects over 300 days, and the MFs were relatively stable and repeatable. Furthermore, a pilot study by using white blood cell (WBC) assay based on labeling with FLAER was performed in volunteer subjects. The MFs of FLAER-deficient WBC (WBCFLAER- ) and RBCCD59- were consistently elevated in two subjects. Our findings provide baseline data that will be helpful in designing further studies using the PIG-A assay to monitor the genotoxic effects of carcinogens in human populations. Environ. Mol. Mutagen. 57:589-604, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Yiyi Cao
- Hongqiao International Institute of Medicine, Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Li Yang
- Department of Hematology, Tong Ren Hospital Affiliated to Shanghai Jiaotong University School Of Medicine, Shanghai, 200336, China
| | - Nannan Feng
- Hongqiao International Institute of Medicine, Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Oumin Shi
- Hongqiao International Institute of Medicine, Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jing Xi
- Hongqiao International Institute of Medicine, Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xinyue You
- Hongqiao International Institute of Medicine, Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chunrong Yin
- Department of Hematology, Tong Ren Hospital Affiliated to Shanghai Jiaotong University School Of Medicine, Shanghai, 200336, China
| | - Huan Yang
- Department of Endocrinology, Tong Ren Hospital Affiliated to Shanghai Jiaotong University School Of Medicine, Shanghai, 200336, China
| | - Katsuyoshi Horibata
- Division of Genetics and Mutagenesis, National Institute of Health Sciences, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Masamitsu Honma
- Division of Genetics and Mutagenesis, National Institute of Health Sciences, Setagaya-ku, Tokyo, 158-8501, Japan
| | - Biyun Qian
- Hongqiao International Institute of Medicine, Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Wei Weng
- Department of Hematology, Tong Ren Hospital Affiliated to Shanghai Jiaotong University School Of Medicine, Shanghai, 200336, China.
| | - Yang Luan
- Hongqiao International Institute of Medicine, Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Gonzalez L, Kirsch-Volders M. Reprint of “Biomonitoring of genotoxic effects for human exposure to nanomaterials: The challenge ahead”. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:204-216. [DOI: 10.1016/j.mrrev.2016.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 02/15/2016] [Accepted: 03/01/2016] [Indexed: 12/25/2022]
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27
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Polymorphisms in metabolism and repair genes affects DNA damage caused by open-cast coal mining exposure. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 808:38-51. [DOI: 10.1016/j.mrgentox.2016.08.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 07/31/2016] [Accepted: 08/09/2016] [Indexed: 02/05/2023]
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Chaves LCC, Navoni JA, de Morais Ferreira D, Batistuzzo de Medeiros S, Ferreira da Costa T, Petta RA, Souza do Amaral V. Water mutagenic potential assessment on a semiarid aquatic ecosystem under influence of heavy metals and natural radioactivity using micronuclei test. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:7572-7581. [PMID: 26732704 DOI: 10.1007/s11356-015-5993-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 12/15/2015] [Indexed: 06/05/2023]
Abstract
The contamination of water bodies by heavy metals and ionizing radiation is a critical environmental issue, which can affect water quality and, thus, human health. This study aimed to evaluate the water quality of the Boqueirão de Parelhas Dam in the Brazilian semiarid region. A 1-year study (2013-2014) was performed through the assessment of physicochemical parameters, heavy metal content, and radioactivity along with the mutagenicity potential of water using micronuclei test in Orechromis niloticus (in vivo) and the cytokinesis-block micronucleus (CBMN) assay in human lymphocytes (in vitro). A deterioration of water organoleptics characteristics by the presence of high levels of sulfate and total solids was observed. High concentrations of aluminum, nickel, silver, and lead along with the alpha particle content were higher than the limits suggested by the World Health Organization and Brazilian legislation for drinking water. An increase in the frequency of micronuclei and nuclear abnormalities was observed in both experimental models. The results obtained confirmed the mutagenic potential present in water samples. This study highlights that geogenic agents affect water quality becoming a human health concern to be taken into account due to the relevance that this water reservoir has in the region.
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Affiliation(s)
- Luiz Cláudio Cardozo Chaves
- Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte, Av. Sen. Salgado Filho 3000, 59078-970, Natal, RN, Brazil
| | - Julio Alejandro Navoni
- Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte, Av. Sen. Salgado Filho 3000, 59078-970, Natal, RN, Brazil
| | - Douglisnilson de Morais Ferreira
- Núcleo de Análises de águas, alimentos e efluentes, Instituto Federal de Tecnologia do Rio Grande do Norte (IFRN), Natal, Brazil
| | - Silvia Batistuzzo de Medeiros
- Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte, Av. Sen. Salgado Filho 3000, 59078-970, Natal, RN, Brazil
| | - Thomas Ferreira da Costa
- Laboratório de Radioatividade Natural (LARANA), Departamento de Geologia, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Reinaldo Antônio Petta
- Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte, Av. Sen. Salgado Filho 3000, 59078-970, Natal, RN, Brazil
- Laboratório de Geomática e Ciências Ambientais (LAGEOMA), Departamento de Geologia, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Viviane Souza do Amaral
- Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal do Rio Grande do Norte, Av. Sen. Salgado Filho 3000, 59078-970, Natal, RN, Brazil.
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Biomonitoring of genotoxic effects for human exposure to nanomaterials: The challenge ahead. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 768:14-26. [DOI: 10.1016/j.mrrev.2016.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 02/15/2016] [Accepted: 03/01/2016] [Indexed: 11/19/2022]
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30
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Sycheva LP, Umnova NV, Kovalenko MA, Zhurkov VS, Shelepchikov AA, Roumak VS. Dioxins and cytogenetic status of villagers after 40 years of agent Orange application in Vietnam. CHEMOSPHERE 2016; 144:1415-1420. [PMID: 26495825 DOI: 10.1016/j.chemosphere.2015.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 09/07/2015] [Accepted: 10/02/2015] [Indexed: 06/05/2023]
Abstract
We have examined cytogenetic status of the rural population living on dioxin-contaminated territories (DCT, TCDD in soil 2.6 ng/kg) compared to the villagers of the control area (TCDD in soil 0.18 ng kg(-1)). The examination took place almost 40 years after the war. The consequences of some confounding factors (years of residence in the region, farming, and aging) has been examined. Karyological analysis of buccal and nasal epitheliocytes among healthy adult males living on DCT and control area (26 and 35 persons) was conducted. A wide range of cytogenetic (micronuclei, nuclear protrusions), proliferative (binucleated cells and cells with doubled nucleus) and endpoints of cell death (cells with perinuclear vacuoles, with damaged nucleus membrane, condensed chromatin, pyknosis, karyorrhexis, karyolysis) had been analyzed. The frequent amount of cells with nuclear protrusions in both epithelia was slightly decreased in the DСT group. Biomarkers of early and late stages of nuclear destruction in buccal epithelium (cells with damaged nuclear membrane, karyolysis) were elevated significantly in DCT. Higher level of the same parameters was also identified in nasal epithelium. The cytogenetic status of healthy adult males on DCT had got "normalization" by present moment in comparison with our early data. Nevertheless, in exposed group some alteration of the cytogenetic status was being registered (mostly biomarkers of apoptosis). Years of residence (and exposure to dioxins) affected the cytogenetic status of DCT inhabitants, whereas no influence of farming factors (pesticides, fertilizers, etc.) had been discovered. Some biomarkers of proliferation and cell death were affected by aging.
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Affiliation(s)
- Lyudmila P Sycheva
- A.N. Sysin Research Institute of Human Ecology and Environmental Health, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - Nataliya V Umnova
- A.N. Severtsov Institute of Ecology and Evolution, RAS, Moscow, Russia
| | - Maria A Kovalenko
- A.N. Sysin Research Institute of Human Ecology and Environmental Health, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Vjacheslav S Zhurkov
- A.N. Sysin Research Institute of Human Ecology and Environmental Health, Ministry of Health of the Russian Federation, Moscow, Russia
| | | | - Vladimir S Roumak
- A.N. Severtsov Institute of Ecology and Evolution, RAS, Moscow, Russia
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Stojkovic R, Ivankovic S, Ivankovic D, Attias L, Mantovani A, Fucic A. Testosterone-induced micronuclei and increased nuclear division rate in L929 cell line expressing the androgen receptor. Toxicol In Vitro 2015; 29:1021-5. [DOI: 10.1016/j.tiv.2015.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 02/24/2015] [Accepted: 04/13/2015] [Indexed: 02/01/2023]
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Alam-Escamilla D, Estrada-Muñiz E, Solís-Villegas E, Elizondo G, Vega L. Genotoxic and cytostatic effects of 6-pentadecyl salicylic anacardic acid in transformed cell lines and peripheral blood mononuclear cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2014; 777:43-53. [PMID: 25726174 DOI: 10.1016/j.mrgentox.2014.11.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 11/27/2014] [Accepted: 11/29/2014] [Indexed: 12/17/2022]
Abstract
In Mexico, as in many other countries, traditional medicine is used for the treatment of several diseases. In particular, Amphipterygium adstringens infusion is used for gastritis, gastric ulcers, and gastric cancer. Extracts from this tree have microbicidal effects against Helicobacter pylori, an important risk factor for gastric cancer development. Anacardic acids are constituents of A. adstringens, and 6-pentadecyl salicylic acid (6-PSA) is the most abundant. However, there is a lack of information regarding the effects of 6-PSA on cancer cells. Therefore, we investigated whether 6-PSA has differential effects on the induction of genotoxicity, cytostaticity, and apoptosis in normal human peripheral blood mononucleated cells (PBMCs), bone marrow polychromatic erythrocytes of Balb/c mice, and human transformed cell lines derived from both gastric cancer (AGS cells) and leukaemia (K562 cells). Treatment with 6-PSA (30-150 μM) reduced the viability of AGS and K562 cells together with a moderate, but significant, increase in the frequency of micronucleated cells and the induction of DNA breakage (Comet Assay). Moreover, 6-PSA increased the apoptosis rate in both the AGS and K562 cell lines in a caspase 8-dependent manner. In contrast, neither cytotoxicity nor genotoxicity were observed in PBMCs or bone marrow polychromatic erythrocytes of Balb/c mice after treatment with low doses of 6-PSA (0.2-2.0 mg/Kg). Instead, 6-PSA treatment resulted in the inhibition of PBMC proliferation, which was reversible after the compound was removed. Additionally, 6-PSA treatments (2-20 mg/Kg) increased the frequency of mature polychromatic erythrocytes in the bone marrow, suggesting a possible effect on the differentiation process of immune cells. The present results indicate that 6-PSA induces cytotoxicity and moderate genotoxicity, together with an increase in the apoptosis rate, in a caspase 8-dependent manner in gastric cancer cells. In contrast, a low toxicity was observed when PBMCs were exposed to 6-PSA.
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Affiliation(s)
- David Alam-Escamilla
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, G. A. Madero, 07360 México D.F., Mexico
| | - Elizabet Estrada-Muñiz
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, G. A. Madero, 07360 México D.F., Mexico
| | - Erik Solís-Villegas
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, G. A. Madero, 07360 México D.F., Mexico
| | - Guillermo Elizondo
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico
| | - Libia Vega
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, San Pedro Zacatenco, G. A. Madero, 07360 México D.F., Mexico.
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Susceptibility Based Upon Chemical Interaction with Disease Processes: Potential Implications for Risk Assessment. Curr Environ Health Rep 2014. [DOI: 10.1007/s40572-014-0030-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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