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Colominas-Ciuró R, Gray FE, Arikan K, Zahn S, Meier C, Criscuolo F, Bize P. Effects of persistent organic pollutants on telomere dynamics are sex and age-specific in a wild long-lived bird. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173785. [PMID: 38851349 DOI: 10.1016/j.scitotenv.2024.173785] [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: 03/13/2024] [Revised: 06/02/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Chemical pollution is a major man-made environmental threat to ecosystems and natural animal populations. Of concern are persistent organic pollutants (POPs), which can persist in the environment for many years. While bioaccumulating throughout the lives of wild animals, POPs can affect their health, reproduction, and survival. However, measuring long-term effects of POPs in wild populations is challenging, and therefore appropriate biomarkers are required in wildlife ecotoxicology. One potential target is telomere length, since telomere preservation has been associated to survival and longevity, and stressors as chemical pollution can disrupt its maintenance. Here, we investigated the effects of different classes of POPs on relative telomere length (RTL) and its rate of change (TROC) in wild long-lived Alpine swifts (Tachymarptis melba). As both RTL and TROC are often reported to differ between sexes and with chronological age, we tested for sex- and age-specific (pre-senescent vs. senescent, ≥ 9 age of years, individuals) effects of POPs. Our results showed that senescent females presented longer RTL and elongated telomeres over time compared to pre-senescent females and males. These sex- and age-related differences in RTL and TROC were influenced by POPs, but differently depending on whether they were organochlorine pesticides (OCPs) or industrial polychlorinated biphenyls (PCBs). OCPs (particularly drins) were negatively associated with RTL, with the strongest negative effects being found in senescent females. Conversely, PCBs led to slower rates of telomere shortening, especially in females. Our study indicates diametrically opposed effects of OCPs on RTL and PCBs on TROC, and these effects were more pronounced in females and senescent individuals. The mechanisms behind these effects (e.g., increased oxidative stress by OCPs; upregulation of telomerase activity by PCBs) remain unknown. Our results highlight the importance in wildlife ecotoxicology to account for sex- and age-related effects when investigating the health effects of pollutants on biomarkers such as telomeres.
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Affiliation(s)
| | | | - Kalender Arikan
- Department of Biology Education, Faculty of Education, Hacettepe University, Turkey
| | - Sandrine Zahn
- Université de Strasbourg, CNRS, IPHC UMR 7178, France
| | | | | | - Pierre Bize
- Swiss Ornithological Institute, Switzerland.
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Zuo S, Sasitharan V, Di Tanna GL, Vonk JM, De Vries M, Sherif M, Ádám B, Rivillas JC, Gallo V. Is exposure to pesticides associated with biological aging? A systematic review and meta-analysis. Ageing Res Rev 2024; 99:102390. [PMID: 38925480 DOI: 10.1016/j.arr.2024.102390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 06/28/2024]
Abstract
OBJECTIVE Exposure to pesticides is a risk factor for various diseases, yet its association with biological aging remains unclear. We aimed to systematically investigate the relationship between pesticide exposure and biological aging. METHODS PubMed, Embase and Web of Science were searched from inception to August 2023. Observational studies investigating the association between pesticide exposure and biomarkers of biological aging were included. Three-level random-effect meta-analysis was used to synthesize the data. Risk of bias was assessed by the Newcastle-Ottawa Scale. RESULTS Twenty studies evaluating the associations between pesticide exposure and biomarkers of biological aging in 10,368 individuals were included. Sixteen reported telomere length and four reported epigenetic clocks. Meta-analysis showed no statistically significant associations between pesticide exposure and the Hannum clock (pooled β = 0.27; 95 %CI: -0.25, 0.79), or telomere length (pooled Hedges'g = -0.46; 95 %CI: -1.10, 0.19). However, the opposite direction of effects for the two outcomes showed an indication of possible accelerated biological aging. After removal of influential effect sizes or low-quality studies, shorter telomere length was found in higher-exposed populations. CONCLUSION The existing evidence for associations between pesticide exposure and biological aging is limited due to the scarcity of studies on epigenetic clocks and the substantial heterogeneity across studies on telomere length. High-quality studies incorporating more biomarkers of biological aging, focusing more on active chemical ingredients of pesticides and accounting for potential confounders are needed to enhance our understanding of the impact of pesticides on biological aging.
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Affiliation(s)
- Shanshan Zuo
- University of Groningen, Campus Fryslân, Department of Sustainable Health, Leeuwarden, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Epidemiology and Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands.
| | | | - Gian Luca Di Tanna
- University of Applied Sciences and Arts of Southern Switzerland, Department of Business Economics, Health and Social Care, Lugano, Switzerland
| | - Judith M Vonk
- University of Groningen, University Medical Center Groningen, Department of Epidemiology and Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
| | - Maaike De Vries
- University of Groningen, University Medical Center Groningen, Department of Epidemiology and Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
| | - Moustafa Sherif
- United Arab Emirates University, College of Medicine and Health Sciences, Institute of Public Health, Al Ain, United Arab Emirates
| | - Balázs Ádám
- United Arab Emirates University, College of Medicine and Health Sciences, Institute of Public Health, Al Ain, United Arab Emirates
| | - Juan Carlos Rivillas
- Imperial College London, MRC Centre Environment and Health, School of Public Health, Department of Epidemiology and Biostatistics, London, United Kingdom
| | - Valentina Gallo
- University of Groningen, Campus Fryslân, Department of Sustainable Health, Leeuwarden, the Netherlands
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Dehdashti B, Miri M, Khanahmad H, Feizi A, Mohammadi F, Rouholamin S, Amin MM. In-Utero exposure to potential sources of indoor air pollution and umbilical cord blood leukocyte telomere length. ENVIRONMENTAL RESEARCH 2024; 252:118791. [PMID: 38552826 DOI: 10.1016/j.envres.2024.118791] [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: 10/13/2023] [Revised: 03/20/2024] [Accepted: 03/24/2024] [Indexed: 04/06/2024]
Abstract
Indoor air pollution (IAP) has been associated with various adverse health effects. However, the evidence regarding such an association with leukocyte telomere length (LTL) in cord blood samples is still scarce. Therefore, the present study aimed to assess the relationship between exposure to indicators of IAP and LTL in umbilical cord blood samples. This cross-sectional study was based on 188 mother-newborn pairs who participated in our study between 2020 and 2022 in Isfahan, Iran. Umbilical LTL was measured by quantitative real-time polymerase chain reaction (qRT-PCR) technique. Linear mixed-effect models were used to assess the relationship between IAP indicators and umbilical LTL, adjusted for relevant covariates. The median (interquartile range (IQR)) of umbilical LTL was 0.92 (0.47). In fully adjusted models, frequency of using degreasing spray during pregnancy (times per month) (β = -0.047, 95% CI:0.09, -0.05, P-value = 0.02), using air freshener spray during pregnancy (β = -0.26, 95% CI: -0.5, -0.02, P-value = 0.03) and frequency of using insecticides during pregnancy (times per month) (β = -0.025, 95% CI: -0.047, -0.003, P-value = 0.02) were significantly associated with shorter umbilical LTL. There was a positive significant relationship between the frequency of using cleaning spray during pregnancy (times per month) with umbilical LTL (β = 0.019, 95% CI: 0.005, 0.033, P-value = 0.01). Furthermore, the direct connection of the parking with home and the frequency of using barbecue (times per week) were marginally associated with shorter umbilical LTL. For other indicators of IAP, we did not observe any statistically significant associations. Overall, this study suggested a negative association between prenatal exposure to IAP during pregnancy and umbilical LTL.
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Affiliation(s)
- Bahare Dehdashti
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non- Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran; Student Research Committee, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Miri
- Leishmaniasis Research Center, Department of Environmental Health, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Hossein Khanahmad
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Awat Feizi
- Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farzaneh Mohammadi
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Safoura Rouholamin
- Department of Obstetrics and Gynecology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Mehdi Amin
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non- Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
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Mu C, Lin M, Shao Y, Liao Q, Liang J, Yu C, Wu X, Chen M, Tang Y, Zhou L, Qiu X, Pan D, Huang D. Associations between maternal serum neonicotinoid pesticide exposure during pregnancy and newborn telomere length: Effect modification by sampling season. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116164. [PMID: 38447517 DOI: 10.1016/j.ecoenv.2024.116164] [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: 08/05/2023] [Revised: 02/24/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND An increasing amount of evidence suggests that telomere length (TL) at birth can predict lifespan and is associated with chronic diseases later in life, but newborn TL may be affected by environmental pollutants. Neonicotinoids (NEOs) are widely used worldwide, and despite an increasing number of studies showing that they may have adverse effects on birth in mammals and even humans, few studies have examined the effect of NEO exposure on newborn TLs. OBJECTIVE To investigate the effects of prenatal exposure to NEOs and the interactions between NEOs and sampling season on newborn TL. METHODS We conducted a prospective cohort study of 500 mother-newborn pairs from the Guangxi Zhuang Birth Cohort. Ultraperformance liquid chromatographymass spectrometry was used to detect ten NEOs in maternal serum, and fluorescence quantitative PCR was used to estimate the newborn TL. A generalized linear model (GLM) was used to evaluate the relationships between individual NEO exposures and TLs , and quantile g-computation (Qgcomp) model and Bayesian kernel machine regression (BKMR) model were used to evaluate the combined effect of mixtures of components. RESULTS The results of the GLM showed that compared with maternal TMX levels < LOD, maternal TMX levels < median were negatively correlated with newborn TL (-6.93%, 95% CI%: -11.92%, -1.66%), and the decrease in newborn TL was more pronounced in girls (-9.60%, 95% CI: -16.84%, -1.72%). Moreover, different kinds of maternal NEO exposure had different effects on newborn TL in different sampling seasons, and the effect was statistically significant in all seasons except in autumn. Mixed exposure analysis revealed a potential positive trend between NEOs and newborn TL, but the association was not statistically significant. CONCLUSION Prenatal exposure to TMX may shorten newborn TL, and this effect is more pronounced among female newborns. Furthermore, the relationship between NEO exposure and TL may be modified by the sampling season.
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Affiliation(s)
- Changhui Mu
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Mengrui Lin
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Yantao Shao
- Department of Medical and Health Management, Logistics Infrastructure Department, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Qian Liao
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Jun Liang
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Chuanxiang Yu
- Wujiang District Center for Disease Control and Prevention, Suzhou 215299, China
| | - Xiaolin Wu
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Manlin Chen
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Ying Tang
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Lihong Zhou
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Xiaoqiang Qiu
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China.
| | - Dongxiang Pan
- Department of Epidemiology and Health Statistics, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China.
| | - Dongping Huang
- Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, Guangxi 530021, China.
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Scorza FA, Finsterer J, Beltramim L, Bombardi LM, de Almeida ACG. Telomere Length and Pesticide Residues in Food: A Causal Link? J Acad Nutr Diet 2024; 124:311-312. [PMID: 37924942 DOI: 10.1016/j.jand.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023]
Affiliation(s)
- Fulvio A Scorza
- Ministério do Desenvolvimento Agrário e Agricultura Familiar São Paulo, Brasil; Disciplina de Neurociência, Escola Paulista de Medicina/Universidade Federal de São Paulo São Paulo, Brasil
| | | | - Larissa Beltramim
- Ministério do Desenvolvimento Agrário e Agricultura Familiar São Paulo, Brasil
| | - Larissa M Bombardi
- Faculdade de Filosofia, Letras e Ciências Humanas. Universidade de São Paulo São Paulo, Brasil
| | - Antonio-Carlos G de Almeida
- Laboratório de Neurociência Experimental e Computacional, Departamento de Engenharia de Biossistemas, Universidade Federal de São João del-Rei City, São Paulo, Brasil
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Lu J, Zhang C, Wang W, Xu W, Chen W, Tao L, Li Z, Zhang Y, Cheng J. Exposure to environmental concentrations of glyphosate induces cardiotoxicity through cellular senescence and reduced cell proliferation capacity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 261:115112. [PMID: 37290295 DOI: 10.1016/j.ecoenv.2023.115112] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/01/2023] [Accepted: 06/04/2023] [Indexed: 06/10/2023]
Abstract
Glyphosate (GLY), the preeminent herbicide utilized globally, is known to be exposed to the environment and population on a chronic basis. Exposure to GLY and the consequent health risks are alarming public health problems that are attracting international attention. However, the cardiotoxicity of GLY has been a matter of dispute and uncertainty. Here, AC16 cardiomyocytes and zebrafish were exposed to GLY. This study found that low concentrations of GLY lead to morphological enlargement of AC16 human cardiomyocytes, indicating a senescent state. The increased expression of P16, P21, and P53 following exposure to GLY demonstrated that GLY causes senescence in AC16. Moreover, it was mechanistically confirmed that GLY-induced senescence in AC16 cardiomyocytes was produced by ROS-mediated DNA damage. In terms of in vivo cardiotoxicity, GLY decreased the proliferative capacity of cardiomyocytes in zebrafish through the notch signaling pathway, resulting in a reduction of cardiomyocytes. It was also found that GLY caused zebrafish cardiotoxicity associated with DNA damage and mitochondrial damage. KEGG analysis after RNA-seq shows a significant enrichment of protein processing pathways in the endoplasmic reticulum (ER) after GLY exposure. Importantly, GLY induced ER stress in AC16 cells and zebrafish by activating PERK-eIF2α-ATF4 pathway. Our study has thus provided the first novel insights into the mechanism underlying GLY-induced cardiotoxicity. Furthermore, our findings emphasize the need for increased attention to the potential cardiotoxic effects of GLY.
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Affiliation(s)
- Jian Lu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Cheng Zhang
- Department of Pathology,UT southwestern Medical Center, Dallas, TX 75390, United States
| | - Weiguo Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Wenping Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Weidong Chen
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Liming Tao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yang Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
| | - Jiagao Cheng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
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Ali JH, Abdeen Z, Azmi K, Berman T, Jager K, Barnett-Itzhaki Z, Walter M. Influence of exposure to pesticides on telomere length and pregnancy outcome: Diethylphosphates but not Dimethylphosphates are associated with accelerated telomere attrition in a Palestinian cohort. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114801. [PMID: 36989559 DOI: 10.1016/j.ecoenv.2023.114801] [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: 01/05/2023] [Revised: 03/07/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Exposure to environmental pesticides during pregnancy is associated with adverse health outcomes such as low birth weight and impaired neuro-development. In this study, we assessed maternal leukocyte telomere lengths (TL) in Palestinian pregnant women and compared the data with urinary organophosphate concentrations, demographic, lifestyle and dietary factors, birth weight, body length, gestational age, and head circumference. Women with high urine levels of creatinine adjusted diethylphosphate(DE)derived pesticide metabolites DEP, DETP or DEDTP had shorter telomeres (p = 0.05). Women living in proximity to agricultural fields had shorter telomeres compared to women not living in proximity to agricultural fields (p = 0.011). Regular consumption of organic food was associated with shorter telomeres (p = 0.01), whereas the consumption of other vegetables such as artichokes was rather associated with longer telomeres. By contrast, urine levels of dimethylphosphate(DM)-derived pesticide metabolites DMTP and DMDTP were associated with lower birth weight (p = 0.05) but not with shrter telomeres. In conclusion organophosphate pesticides and living in proximity to agriculture are associated with shorter TL, likely due to higher consumption of contaminated fruits and vegetables and/or the transport of pesticides to non-treatment sites. DE and DM substituted pesticides seem to have different effects on telomeres and development.
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Affiliation(s)
- Jaber Haj Ali
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center, Rostock, Germany; Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité Universitätsmedizin, Berlin, Germany; Consulting Medical Laboratory, Nablus, Palestine
| | - Ziad Abdeen
- Al-Quds Nutrition and Health Research Institute, Al-Quds University, Jerusalem, Palestine
| | - Kifaya Azmi
- Biochemistry and Molecular Biology Department, Faculty of Medicine, Al-Quds University, Abu Deis, The West Bank, Palestine; Al-Quds Public Health Society, Jerusalem, Palestine
| | - Tamar Berman
- Public Health Services, Ministry of Health, Jerusalem, Israel; Department of Health Promotion, School of Public Health, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Kathrin Jager
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center, Rostock, Germany; Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité Universitätsmedizin, Berlin, Germany
| | - Zohar Barnett-Itzhaki
- Ruppin Research Group in Environmental and Social Sustainability, Ruppin Academic Center, Emek Hefer, Israel
| | - Michael Walter
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center, Rostock, Germany; Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité Universitätsmedizin, Berlin, Germany.
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Bitencourt de Morais Valentim JM, Fagundes TR, Okamoto Ferreira M, Lonardoni Micheletti P, Broto Oliveira GE, Cremer Souza M, Geovana Leite Vacario B, da Silva JC, Scandolara TB, Gaboardi SC, Zanetti Pessoa Candiotto L, Mara Serpeloni J, Rodrigues Ferreira Seiva F, Panis C. Monitoring residues of pesticides in food in Brazil: A multiscale analysis of the main contaminants, dietary cancer risk estimative and mechanisms associated. Front Public Health 2023; 11:1130893. [PMID: 36908412 PMCID: PMC9992878 DOI: 10.3389/fpubh.2023.1130893] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 01/27/2023] [Indexed: 02/24/2023] Open
Abstract
Introduction Pesticides pose a risk for cancer development and progression. People are continuously exposed to such substances by several routes, including daily intake of contaminated food and water, especially in countries that are highly pesticide consumers and have very permissive legislation about pesticide contamination as Brazil. This work investigated the relationship among pesticides, food contamination, and dietary cancer risk. Methods Analyzed two social reports from the Brazilian Government: the Program for Analysis of Residues of Pesticides in Food (PARA) and The National Program for Control of Waste and Contaminants (PNCRC). Results and discussion First, we characterized the main pesticide residues detected over the maximum limits allowed by legislation or those prohibited for use in food samples analyzed across the country. Based on this list, we estimated the dietary cancer risks for some of the selected pesticides. Finally, we searched for data about dietary cancer risks and carcinogenic mechanisms of each pesticide. We also provided a critical analysis concerning the pesticide scenario in Brazil, aiming to discuss the food contamination levels observed from a geographical, political, and public health perspective. Exposures to pesticides in Brazil violate a range of human rights when food and water for human consumption are contaminated.
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Affiliation(s)
| | - Tatiane Renata Fagundes
- Department of Biological Sciences, Universidade Estadual do Norte do Paraná (UENP), Jacarezinho, Brazil
| | - Mariane Okamoto Ferreira
- Center of Health Sciences, Universidade Estadual do Oeste do Paraná (UNIOESTE), Blumenau, Brazil
| | | | | | - Milena Cremer Souza
- Department of Pathological Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil
| | | | | | | | - Shaiane Carla Gaboardi
- Center of Health Sciences, Universidade Estadual do Oeste do Paraná (UNIOESTE), Blumenau, Brazil
- Instituto Federal Catarinense, Blumenau, Brazil
| | | | - Juliana Mara Serpeloni
- Department of Pathological Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil
| | - Fábio Rodrigues Ferreira Seiva
- Department of Pathological Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil
- Department of Biological Sciences, Universidade Estadual do Norte do Paraná (UENP), Jacarezinho, Brazil
| | - Carolina Panis
- Department of Pathological Sciences, Universidade Estadual de Londrina (UEL), Londrina, Brazil
- Center of Health Sciences, Universidade Estadual do Oeste do Paraná (UNIOESTE), Blumenau, Brazil
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Zizza A, Panico A, Grassi T, Recchia V, Grima P, De Giglio O, Bagordo F. Is telomere length in buccal or salivary cells a useful biomarker of exposure to air pollution? A review. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 883-884:503561. [DOI: 10.1016/j.mrgentox.2022.503561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 11/11/2022] [Accepted: 11/18/2022] [Indexed: 11/21/2022]
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Darvishian M, Bhatti P, Gaudreau É, Abanto Z, Choi C, Gallagher RP, Spinelli JJ, Lee TK. Persistent organic pollutants and risk of cutaneous malignant melanoma among women. Cancer Rep (Hoboken) 2022; 5:e1536. [PMID: 34414694 PMCID: PMC9351661 DOI: 10.1002/cnr2.1536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/12/2021] [Accepted: 07/29/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Despite the increasing trend of cutaneous malignant melanoma (CMM) incidence in Canada, especially among females, few risk factors other than ultraviolet radiation exposure, have been identified. AIM We conducted a case-control study of 406 CMM cases and 181 controls to evaluate the potential impact of body burdens of various persistent organic pollutants on CMM risk. METHODS Detailed data on potential confounding factors, including lifetime repeated sun exposure and skin reaction to repeated sun exposure, were collected. Gas chromatography tandem mass spectrometry was used to assay plasma levels of 14 polychlorinated biphenyl (PCB) congeners and 11 organochlorine (OC) pesticides among cases and controls. RESULTS Statistically significant trends of increased CMM risk were observed with increasing plasma concentrations of multiple PCB congeners, including PCBs 138, 153, 170, 180, 183 and 187. For example, compared to lowest plasma concentration quartile of PCB-138, the second, third and fourth quartiles were associated with 1.7 (95% CI: 0.9-2.9), 2.3 (95% CI: 1.3-4.1) and 2.4 (95% CI: 1.3-4.5) -fold increased risks of CMM, respectively. Similarly, increasing plasma concentrations of several OC pesticides (i.e., β-HCH, HCB, Mirex, oxychlordane and trans-Nonachlor) showed statistically significant trends with increased CMM risk. For example, compared to lowest plasma concentration quartile of β-HCH, the second, third and fourth quartiles were associated with 1.3 (95% CI: 0.7-2.3), 2.1 (95% CI: 1.2-3.7) and 2.3 (95% CI: 1.2-4.4) -fold increased risks of CMM, respectively. CONCLUSION Plasma levels of several persistent organic pollutants were highly correlated, suggesting that observed associations were not necessarily independent of each other. Given the highly correlated nature of exposure to PCB and OC analytes, sophisticated analyses that consider complex mixtures should be considered in future studies.
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Affiliation(s)
- Maryam Darvishian
- Cancer Control Research ProgramBC CancerVancouverBritish ColumbiaCanada
| | - Parveen Bhatti
- Cancer Control Research ProgramBC CancerVancouverBritish ColumbiaCanada
| | - Éric Gaudreau
- Centre de Toxicologie du Québec (CTQ)Institut National de Santé Publique du Québec (INSPQ)QuébecCanada
| | - Zenaida Abanto
- Cancer Control Research ProgramBC CancerVancouverBritish ColumbiaCanada
| | - Charles Choi
- Faculty of MedicineUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Richard P. Gallagher
- Cancer Control Research ProgramBC CancerVancouverBritish ColumbiaCanada
- Department of Dermatology and Skin SciencesUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - John J. Spinelli
- School of Population and Public HealthUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Tim K. Lee
- Cancer Control Research ProgramBC CancerVancouverBritish ColumbiaCanada
- Department of Dermatology and Skin SciencesUniversity of British ColumbiaVancouverBritish ColumbiaCanada
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Exposure to Airborne Pesticides and Its Residue in Blood Serum of Paddy Farmers in Malaysia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116806. [PMID: 35682390 PMCID: PMC9180057 DOI: 10.3390/ijerph19116806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/29/2022] [Accepted: 05/03/2022] [Indexed: 12/04/2022]
Abstract
Background: Pesticides manage pests and diseases in agriculture, but they harm the health of agricultural workers. Concentrations of thirteen pesticides were determined in personal air and blood serum of 85 paddy farmers and 85 non-farmers, thereafter associated with health symptoms. Method: Samples were analyzed using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). Results: The median concentration of pesticides in personal air samples ranged from 10.69 to 188.49 ng/m3 for farmers and from 5.79 to 73.66 ng/m3 for non-farmers. The median concentration of pesticides in blood serum was from 58.27 to 210.12 ng/mL for farmers and 47.83 to 62.74 ng/mL for non-farmers. Concentration of eleven pesticides in personal air and twelve pesticides in blood serum were significantly higher in farmers than non-farmers (p < 0.05). All pesticides detected in personal air correlated significantly with concentration in the blood serum of farmers (p < 0.05). Health symptoms reported by farmers were dizziness (49.4%), nausea (47.1%), cough (35.3%), chest pain (30.6%), breathing difficulty (23.5%), sore throat (22.4%), vomiting (18.8%), phlegm (16.5%), and wheezing (15.3%). Concentration of pesticides in personal air, blood serum, and health symptoms were not significantly associated. Conclusion: Occupational exposure to pesticides significantly contaminates blood serum of farmers compared to non-farmers.
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Dos Santos IC, da Silva JT, Rohr P, Lengert AVH, de Lima MA, Kahl VFS, da Silva J, Reis RM, Silveira HCS. Genomic instability evaluation by BMCyt and telomere length in Brazilian family farmers exposed to pesticides. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 878:503479. [PMID: 35649672 DOI: 10.1016/j.mrgentox.2022.503479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 02/21/2022] [Accepted: 03/07/2022] [Indexed: 06/15/2023]
Abstract
Brazil is one of the largest consumers of pesticides in the world. This high consumption has resulted in higher potential health risk to agricultural farm workers due to occupational exposure. Hence, the aim of this study is to evaluate genomic instability, using Buccal Micronucleus Cytome (BMCyt) and telomere length (TL) measurement as biomarkers of occupational exposure to pesticides in rural workers living in the State of São Paulo, Brazil. Genomic instability was evaluated in 81 pesticide-exposed farm workers (69 males and 12 females) with a mean age of 49.16 ± 10.06 years and a mean time job of 30.00 ± 14.00 years,81 non-exposed individuals (62 males and 15 females) with a mean age of 47.87 ± 10.66 years. BMCyt results showed significantly higher levels of cell damage (micronuclei and binucleated cells) and cell death (karyorrhectic and condensed chromatin cells) in subjects exposed to pesticide when compared to those non-exposed (p < 0.05). Although our results did not show significant differences in TL among exposed and non-exposed groups, effects in TL due to pesticide exposure was found in a multivariable linear regression model when we stratified the groups by age (≤ 49 years and ≥ 50 years old; β = 11.21, p = 0.006). In addition, TL reduction on was identified in relation to an increase in cigarette pack consumption (β = -0.633, p = 0.045). Furthermore, exposure to specific pesticides presented different effects in TL. Cypermethrin exposure resulted in a reduction in TL (β = -18.039, p = 0.018), while abamectin exposure led to an increase in TL (β = 23.990, p = 0.007). Thus, our findings substantiate genomic instability due to pesticides exposure.
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Affiliation(s)
| | | | - Paula Rohr
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo, Brazil
| | | | - Marcos Alves de Lima
- Epidemiology and Biostatistics Nucleus, Barretos Cancer Hospital, São Paulo, Brazil
| | - Vivian Francilia Silva Kahl
- The University of Queensland Diamantina Institute, The University of Queensland, Faculty of Medicine, Woolloongabba 4102, Queensland, Australia; Translational Research Institute, Woolloongabba 4102, Queensland, Australia
| | - Juliana da Silva
- Post-Graduate Program in Cellular and Molecular Biology Applied to Health, Lutheran University of Brazil, Rio Grande do Sul, Brazil; Laboratory of Genetic Toxicology, La Salle University (UniLaSalle), Rio Grande do Sul, Brazil
| | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo, Brazil; Life and Health Sciences Research Institute (ICVS), Medical School, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Alonso-Pedrero L, Donat-Vargas C, Bes-Rastrollo M, Ojeda-Rodríguez A, Zalba G, Razquin C, Martínez-González MA, Marti A. Dietary Exposure to Polychlorinated Biphenyls and Dioxins and Its Relationship to Telomere Length in Subjects Older Than 55 Years from the SUN Project. Nutrients 2022; 14:nu14020353. [PMID: 35057533 PMCID: PMC8779661 DOI: 10.3390/nu14020353] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 02/05/2023] Open
Abstract
Exposure to persistent organic pollutants (POPs) may influence telomere length (TL), which is considered as a marker of biological age associated with the risk of chronic disease. We hypothesized that dietary exposure to polychlorinated biphenyls (PCBs) and dioxins could affect TL. Our aim was to evaluate the association of dietary exposure to PCBs and dioxins with TL. In this cross-sectional study of 886 subjects older than 55 y (mean age: 67.7; standard deviation (SD): 6.1; 27% women) from the “Seguimiento Universidad de Navarra” (SUN) project. TL was determined by real-time quantitative polymerase chain reaction and dietary PCBs and dioxins exposure was collected using a validated 136-item Food Frequency Questionnaire. Multivariable linear regression models were used to control for potential confounding factors. Shorter TL was associated with dietary total PCBs (SD of T/S ratio/(ng/day) = −0.30 × 10−7; 95% CI, −0.55 × 10−7 to −0.06 × 10−7), dioxin-like PCBs (DL-PCBs) (SD of T/S ratio/(pg WHO TEQ (Toxic Equivalents)/day) = −6.17 × 10−7; 95% CI, −11.30 × 10−7 to −1.03 × 10−7), and total TEQ exposure (SD of T/S ratio/(pg WHO TEQ/day) = −5.02 × 10−7; 95% CI, −9.44 × 10−7 to −0.61 × 10−7), but not with dioxins (SD of T/S ratio/(pg WHO TEQ/day) = −13.90 × 10−7; 95% CI, −37.70 × 10−7 to 9.79 × 10−7). In this sample of middle-aged and older Spanish adults, dietary exposure to total PCBs and DL-PCBs alone and together with dioxins was associated with shorter TL. Further longitudinal studies, preferably with POPs measured in biological samples, are needed to confirm this finding.
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Affiliation(s)
- Lucia Alonso-Pedrero
- Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain; (L.A.-P.); (A.O.-R.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain; (M.B.-R.); (G.Z.); (M.A.M.-G.)
| | - Carolina Donat-Vargas
- Departament of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid, CEI UAM+ CSIC, 28049 Madrid, Spain;
- Unit of Nutritional and Cardiovascular Epidemiology, Environmental Medicine Institute (IMM), Karolinska Institutet, 17177 Stockholm, Sweden
- Physiopathology of Obesity and Nutrition Networking Biomedical Research Centre (CIBERobn), Spanish National Institute of Health Carlos III, 28029 Madrid, Spain;
| | - Maira Bes-Rastrollo
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain; (M.B.-R.); (G.Z.); (M.A.M.-G.)
- Physiopathology of Obesity and Nutrition Networking Biomedical Research Centre (CIBERobn), Spanish National Institute of Health Carlos III, 28029 Madrid, Spain;
- Department of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, Spain
| | - Ana Ojeda-Rodríguez
- Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain; (L.A.-P.); (A.O.-R.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain; (M.B.-R.); (G.Z.); (M.A.M.-G.)
| | - Guillermo Zalba
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain; (M.B.-R.); (G.Z.); (M.A.M.-G.)
- Department of Biochemistry and Genetics, University of Navarra, 31008 Pamplona, Spain
| | - Cristina Razquin
- Physiopathology of Obesity and Nutrition Networking Biomedical Research Centre (CIBERobn), Spanish National Institute of Health Carlos III, 28029 Madrid, Spain;
- Department of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, Spain
| | - Miguel A. Martínez-González
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain; (M.B.-R.); (G.Z.); (M.A.M.-G.)
- Physiopathology of Obesity and Nutrition Networking Biomedical Research Centre (CIBERobn), Spanish National Institute of Health Carlos III, 28029 Madrid, Spain;
- Department of Preventive Medicine and Public Health, University of Navarra, 31008 Pamplona, Spain
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA 02115, USA
| | - Amelia Marti
- Department of Nutrition, Food Science and Physiology, University of Navarra, 31008 Pamplona, Spain; (L.A.-P.); (A.O.-R.)
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain; (M.B.-R.); (G.Z.); (M.A.M.-G.)
- Physiopathology of Obesity and Nutrition Networking Biomedical Research Centre (CIBERobn), Spanish National Institute of Health Carlos III, 28029 Madrid, Spain;
- Correspondence: ; Tel.: +34-948-425600 (ext. 806244)
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Kahl VFS, da Silva J. Inorganic elements in occupational settings: A review on the effects on telomere length and biology. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2021; 872:503418. [PMID: 34798938 DOI: 10.1016/j.mrgentox.2021.503418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/31/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
The past decades have shown that telomere crisis is highly affected by external factors. Effects of human exposure to xenobiotics on telomere length (TL), particularly in their workplace, have been largely studied. TL has been shown to be an efficient biomarker in occupational risk assessment. This is the first review focusing on studies about the effects on TL from occupational exposures to metals (lead [Pb] and mixtures), and particulate matter (PM) related to inorganic elements. Data from 15 studies were evaluated regarding occupational exposure to metals and PM-associated inorganic elements and impact on TL. Potential complementary analyses and subjects' background (age, length of employment and gender) were also assessed. There was limited information on the correlations between work length and TL dynamics, and that was also true for the correlation between age and TL. Results indicated that TL is affected differently across the types of occupational exposure investigated in this review, and even within the same exposure, a variety of effects can be observed. Fifty-three percent of the studies observed decreased TL in occupational exposure among welding fumes, open-cast coal mine, Pb and PM industries workers. Two studies focused particularly on the levels of metals and association with TL, and both linear and non-linear associations were found. Interestingly, TL modifications were accompanied by increase in DNA damage in 7 out of 8 studies that investigated it, measured either by Cytokinesis-block Micronucleus Assay or Comet assay. Five studies also investigated oxidative stress parameters, and 4 of them found increased levels of oxidative damage along with TL impairment. Oxidative stress is one of the main mechanisms by which telomeres are affected due to their high guanine content. Our review highlights the need of further studies accessing TL in simultaneous occupational exposure to mixtures of xenobiotics.
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Affiliation(s)
- Vivian F Silva Kahl
- The University of Queensland Diamantina Institute, The University of Queensland, Faculty of Medicine, 37 Kent Street, Woolloongabba, Queensland 4102, Australia; Translational Research Institute, 37 Kent Street, Woolloongabba, Queensland 4102, Australia.
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Post Graduate Program in Cellular and Molecular Biology Applied to Health, Lutheran University of Brazil, Av Farroupilha 8001, Canoas, Rio Grande do Sul, 92425-900, Brazil; LaSalle University (UniLaSalle), Av Victor Barreto 2288, Canoas, Rio Grande do Sul, 92010-000, Brazil.
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15
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Association between maternal urinary selenium during pregnancy and newborn telomere length: results from a birth cohort study. Eur J Clin Nutr 2021; 76:716-721. [PMID: 34531540 DOI: 10.1038/s41430-021-01004-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 08/22/2021] [Accepted: 09/02/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND Newborn telomere length is considered as an effective predictor of lifespan and health outcomes in later life. Selenium is an essential trace element for human health, and its antioxidation is of great significance for the prevention of telomere erosion. METHODS We recruited 746 mother-newborn pairs in Wuhan Children's Hospital between 2013 and 2015. Urine samples were repeatedly collected at three time points during pregnancy, and umbilical cord blood samples were collected right after parturition. Urinary selenium concentration was detected using inductively coupled plasma mass spectrometry, and newborn telomere length was measured using quantitative real-time polymerase chain reaction. We applied general estimating equations to examine the trimester-specific association between maternal urinary selenium during pregnancy and newborn telomere length. RESULTS The median of creatinine-corrected selenium concentrations during pregnancy were 16.29, 18.08, and 18.35 μg/g·creatinine in the first, second, and third trimesters, respectively. Selenium concentrations in all the three trimesters were significantly associated with newborn telomere length. Per doubling of maternal urinary selenium concentrations was associated with 6.44% (95% CI: 0.92, 12.25), 6.54% (95% CI: 0.17, 13.31), and 6.02% (95% CI: 0.29, 12.09) longer newborn telomere length in the first, second, and third trimesters, respectively, after adjusting for potential confounders. CONCLUSIONS This is the first study to provide evidence for the effect of maternal selenium levels on fetal telomere erosion. Findings from our study suggested that maternal urinary selenium was positively associated with newborn telomere length, indicating that intrauterine selenium exposure might have effect on initial setting of human telomere length.
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Needham BL, Straight B, Hilton CE, Olungah CO, Lin J. Family socioeconomic status and child telomere length among the Samburu of Kenya. Soc Sci Med 2021; 283:114182. [PMID: 34225037 DOI: 10.1016/j.socscimed.2021.114182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/27/2021] [Accepted: 06/25/2021] [Indexed: 01/08/2023]
Abstract
Previous research in high-income countries suggests that children from families with lower socioeconomic status (SES) tend to have shorter telomere length - a biomarker of stress and cell aging - than children from families with greater social and economic resources. However, little is known about predictors of child telomere length in low-income settings. Data for the current study are from a sample of 214 Samburu children aged 1-9 years. The Samburu are semi-nomadic pastoralists who live in the Rift Valley of north-central Kenya. Samburu livelihood is based primarily on livestock, and polygynous marriage is common. Drawing on prior ethnographic research, we measured 14 culturally relevant indicators of family SES, including mother's education, head of household's education, whether the child is currently attending school, household spending, mother's employment history, head of household's employment history, mother's perceived wealth, whether the child lives in a modern house, livestock holdings (total, cows, sheep/goats, and camels), mother's wife number, and whether the child lives in a polygynous household. Telomere length was measured in salivary DNA by the quantitative polymerase chain reaction (qPCR) method. Using latent class analysis, we identified four groups of children that are similar based on the 14 indicators of family SES: Lower SES; Middle SES, Traditional; Middle SES, Modern; and Higher SES. SES classes were not significantly associated with child telomere length. In models examining individual indicators of SES, we found that telomere length was 0.57 standard deviations greater for children who lived in families in the lowest quartile of total livestock holdings compared to those in the highest quartile (b = 0.57, p = 0.03). While additional research is needed to identify the mechanisms underlying this counterintuitive finding, the current study highlights the importance of cultural context in shaping the social gradient in health.
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Affiliation(s)
- Belinda L Needham
- Department of Epidemiology and Center for Social Epidemiology and Population Health, University of Michigan, USA.
| | - Bilinda Straight
- Department of Gender and Women's Studies, Western Michigan University, USA
| | - Charles E Hilton
- Department of Anthropology, University of North Carolina, Chapel Hill, USA
| | | | - Jue Lin
- Department of Biochemistry and Biophysics, University of California, San Francisco, USA
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Fernandes SG, Dsouza R, Khattar E. External environmental agents influence telomere length and telomerase activity by modulating internal cellular processes: Implications in human aging. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 85:103633. [PMID: 33711516 DOI: 10.1016/j.etap.2021.103633] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/30/2021] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
External environment affects cellular physiological processes and impact the stability of our genome. The most important structural components of our linear chromosomes which endure the impact by these agents, are the chromosomal ends called telomeres. Telomeres preserve the integrity of our genome by preventing end to end fusions and telomeric loss through by inhibiting DNA damage response (DDR) activation. This is accomplished by the presence of a six membered shelterin complex at telomeres. Further, telomeres cannot be replicated by normal DNA polymerase and require a special enzyme called telomerase which is expressed only in stem cells, few immune cells and germ cells. Telomeres are rich in guanine content and thus become extremely prone to damage arising due to physiological processes like oxidative stress and inflammation. External environmental factors which includes various physical, biological and chemical agents also affect telomere homeostasis by increasing oxidative stress and inflammation. In the present review, we highlight the effect of these external factors on telomerase activity and telomere length. We also discuss how the external agents affect the physiological processes, thus modulating telomere stability. Further, we describe its implication in the development of aging and its related pathologies.
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Affiliation(s)
- Stina George Fernandes
- Sunandan Divatia School of Science, SVKM's NMIMS (Deemed to be University), Vile Parle West, Mumbai, 400056, India
| | - Rebecca Dsouza
- Sunandan Divatia School of Science, SVKM's NMIMS (Deemed to be University), Vile Parle West, Mumbai, 400056, India
| | - Ekta Khattar
- Sunandan Divatia School of Science, SVKM's NMIMS (Deemed to be University), Vile Parle West, Mumbai, 400056, India.
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Liu Y, Wang J, Huang Z, Liang J, Xia Q, Xia Q, Liu X. Environmental pollutants exposure: A potential contributor for aging and age-related diseases. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 83:103575. [PMID: 33385577 DOI: 10.1016/j.etap.2020.103575] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/13/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
Telomeres are "protective messengers" at the ends of eukaryotic chromosomes that protect them from degradation, end to end fusion and recombination. Admittedly, telomeres progressively shorten with age that can also be significantly accelerated by pathological conditions, which are often considered as potential contributors for cellular senescence. It is commonly believed that constant accumulation of senescent cells may lead to dysfunctional tissues and organs, thereby accelerating aging process and subsequent occurrence of age-related diseases. In particular, epidemiological data has indicated a significant association between environmental pollutants exposure and a high incidence of age-related diseases. Moreover, there is growing evidence that environmental toxicity has a detrimental impact on telomere length. Overall, a consensus is emerging that environmental pollutants exposure could lead to accelerated telomere erosion and further induce premature senescence, which may be responsible for the acceleration of aging and the high morbidity and mortality rates of age-related diseases.
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Affiliation(s)
- Yaru Liu
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China; The Grade 3 Pharmaceutical Chemistry Laboratory of State Administration of Traditional Chinese Medicine, Hefei, Anhui, 230022, China
| | - Jiequan Wang
- Department of Pharmacy, Affiliated Psychological Hospital of Anhui Medical University, Hefei, Anhui, 230000, China; Department of Pharmacy, Anhui Mental Health Center, Hefei, Anhui, 230000, China; Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, Anhui, 230000, China
| | - Zhaogang Huang
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China; The Grade 3 Pharmaceutical Chemistry Laboratory of State Administration of Traditional Chinese Medicine, Hefei, Anhui, 230022, China
| | - Jun Liang
- Department of Pharmacy, Affiliated Psychological Hospital of Anhui Medical University, Hefei, Anhui, 230000, China; Department of Pharmacy, Anhui Mental Health Center, Hefei, Anhui, 230000, China; Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, Anhui, 230000, China
| | - Qingrong Xia
- Department of Pharmacy, Affiliated Psychological Hospital of Anhui Medical University, Hefei, Anhui, 230000, China; Department of Pharmacy, Anhui Mental Health Center, Hefei, Anhui, 230000, China; Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, Anhui, 230000, China
| | - Quan Xia
- Department of Pharmacy, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China; The Grade 3 Pharmaceutical Chemistry Laboratory of State Administration of Traditional Chinese Medicine, Hefei, Anhui, 230022, China.
| | - Xinhua Liu
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
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Molbert N, Angelier F, Alliot F, Ribout C, Goutte A. Fish from urban rivers and with high pollutant levels have shorter telomeres. Biol Lett 2021; 17:20200819. [PMID: 33465329 DOI: 10.1098/rsbl.2020.0819] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Environmental pressures, such as urbanization and exposure to pollutants may jeopardize survival of free-living animals. Yet, much remains to be known about physiological and ecological responses to currently-released pollutants, especially in wild vertebrate ectotherms. We tested the effect of urbanization and pollution (phthalates, organochlorine and pyrethroid pesticides, polychlorobiphenyls, polybromodiphenylethers, polycyclic aromatic hydrocarbons, and some of their metabolites) on telomere length, a suggested biomarker of life expectancy, in the European chub, Squalius cephalus, from urban and agricultural rivers of the Marne hydrographic network, France. We showed that telomere length was reduced in chub from urban rivers. Moreover, among the wide range of anthropogenic contaminants investigated, high levels of phthalate metabolites in liver were associated with shorter telomeres. This study suggests that urbanization and chemical pollution may compromise survival of wild fish, by accelerating telomere attrition.
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Affiliation(s)
- Noëlie Molbert
- Sorbonne Université, CNRS, EPHE, UMR METIS, 75005 Paris, France
| | - Frédéric Angelier
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, 79360 Villiers en Bois, France
| | - Fabrice Alliot
- Sorbonne Université, CNRS, EPHE, UMR METIS, 75005 Paris, France.,EPHE, PSL Research University, 75005 Paris, France
| | - Cécile Ribout
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, 79360 Villiers en Bois, France
| | - Aurélie Goutte
- Sorbonne Université, CNRS, EPHE, UMR METIS, 75005 Paris, France.,EPHE, PSL Research University, 75005 Paris, France
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Silva Pinto BG, Marques Soares TK, Azevedo Linhares M, Castilhos Ghisi N. Occupational exposure to pesticides: Genetic danger to farmworkers and manufacturing workers - A meta-analytical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141382. [PMID: 32818891 DOI: 10.1016/j.scitotenv.2020.141382] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
In the last decades, the use of pesticides has grown worldwide. However, there is great worry about the impact of pesticides on human health, due to their wide distribution and possible long-term effects. Complex mixtures with different formulations are often used, including a variety of genotoxic compounds. Thus, genotoxicity tests form an important part of cancer research and risk assessment of potential carcinogens. This study aimed to conduct a meta-analytical review of possible genetic damage resulting from occupational exposure in farmworkers and workers employed in pesticide production, both ever in comparison to non-exposed people, using comet assay (CA), micronucleus test (MN) and telomere length (TL) data available in the scientific literature. A total of 145 datasets were evaluated. The results showed that the occupationally exposed workers had more DNA damage in CA and MN than non-exposed workers. The TL result did not show difference between groups. When the data were categorized by gender (male, female or both), crop (general, tobacco, fruits, soybeans, cotton) and occupation (manufacturing or farmworkers), the study found that the exposed group always presented higher damage than the non-exposed individuals, in CA and MN. More studies with TL are needed to obtain a more precise response, and to segregate the effect of tobacco farming from pesticide exposure. When TL was segregated by gender, women and men presented difference between exposed and non-exposed groups. In general, the publication bias impact was modest. If all relevant studies were included, the key finding (i.e. the effect of pesticide exposure increases the genotoxicity and mutation rate) would probably remain unchanged. Lastly, it is important to highlight the importance of the use of personal protective equipment (PPE), and offer safer options to farmworkers (e.g. organic farming or less toxic alternatives).
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Affiliation(s)
- Bruna Gabriele Silva Pinto
- Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, s/n, km 04, P.O. Box 157, CEP: 85660-000 Dois Vizinhos, PR, Brazil.
| | - Tábatta Kim Marques Soares
- Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, s/n, km 04, P.O. Box 157, CEP: 85660-000 Dois Vizinhos, PR, Brazil.
| | - Maristela Azevedo Linhares
- Centro de Tecnologia em Saúde e Meio Ambiente, Instituto de Tecnologia do Paraná (Tecpar), Rua Professor Algacyr Munhoz Mader, 3775, CEP: 81350-10 Curitiba, PR, Brazil.
| | - Nédia Castilhos Ghisi
- Programa de Pós-Graduação em Biotecnologia, Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, s/n, km 04, P.O. Box 157, CEP: 85660-000 Dois Vizinhos, PR, Brazil.
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Molina-Guzmán LP, Ríos-Osorio LA. Occupational health and safety in agriculture. A systematic review. REVISTA DE LA FACULTAD DE MEDICINA 2020. [DOI: 10.15446/revfacmed.v68n4.76519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introduction: The prevalence of occupational diseases in the agricultural sector is higher than in other industries, since agricultural workers are at higher risk of exposure to different chemicals and pesticides, and are more prone to occupational accidents.Objective: To conduct a review of recent literature on occupational health and risk in agriculture.Materials and methods: A literature search was conducted in PubMed, SciencieDirect and Scopus using the following search strategy: type of articles: original research papers; language: English; publication period: 2006-2016; search terms: "agricultural health", "agrarian health", "risk factors", "epidemiology", "causality" and "occupational", used in different combinations ("AND" and "OR").Results: The search yielded 350 articles, of which 102 met the inclusion criteria. Moreover, 5 articles were found in grey literature sources and included in the final analysis. Most research on this topic has been conducted in the United States, which produced 91% (97/107) of the articles included.Conclusions: Most studies on health and safety in agriculture focused primarily on the harmful effects of occupational exposure to agrochemicals and pesticides, and the consequences of occupational accidents. However, since more than 90% of these studies come from the United States, a more comprehensive approach to health in agriculture is required, since what is reported here may be far from the reality of other regions, especially Latin America.
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Chattopadhyay S, Law S. Morphogen signaling by Wnt/β-catenin pathway and microenvironmental alteration in the bone marrow of agricultural pesticide exposure-induced experimental aplastic anemia. J Biochem Mol Toxicol 2020; 34:e22523. [PMID: 32410290 DOI: 10.1002/jbt.22523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 03/14/2020] [Accepted: 04/27/2020] [Indexed: 11/08/2022]
Abstract
The etiologic link between pesticide toxicity and aplastic anemia in agricultural and agro-industrial setting has been frequently reported in epidemiological studies conducted worldwide. Chronic pesticide toxicity causes long-term bone marrow injury and perturbs the normal hematopoietic physiology, including survival of hematopoietic progenitor cells and bone marrow's blood cell forming ability. The purpose of this study is to understand the mechanism of pesticide toxicity-mediated bone marrow aplasia by studying Wnt/β-catenin signaling pathway and microenvironmental stromal components. An agricultural pesticide formulation comprising of cypermethrin, chlorpyriphos, and hexaconazole was used to induce bone marrow aplasia in inbred Swiss albino mice. Marrow failure followed by the onset of aplastic condition was confirmed by pancytopenic peripheral blood and hypocellular bone marrow filled with adipocytes. Significant downregulation of canonical Wnt/β-catenin signaling was identified by expression analysis of Wnt3a, β-catenin, and telomerase reverse transcriptase in the aplastic bone marrow hematopoietic stem/progenitor compartment. Along with signaling deregulation, disruption in both the osteoblastic and vascular stromal components was observed in the pesticide-exposed bone marrow microenvironment when compared to control. In this study, we tried to establish the correlation among disease pathophysiology, signaling deregulation in the hematopoietic cells, and bone marrow microenvironmental alteration during environmental exposure-mediated aplastic hematopoietic catastrophe, which may shed light on the unexplored mechanistic perspective of this fatal blood disease.
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Affiliation(s)
- Sukalpa Chattopadhyay
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
| | - Sujata Law
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
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Karimi B, Nabizadeh R, Yunesian M. Association Between Leukocyte Telomere Length and Serum Concentrations of PCBs and Organochlorine Pesticides. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 79:122-130. [PMID: 32300848 DOI: 10.1007/s00244-020-00732-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Exposure to polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) through food, water, and air occurred during the life, which may change telomere length (TL) in peripheral blood leukocytes. The present study was designed to investigate the association between TL and serum levels of PCBs and OCPs in Tehran male's population. Whole blood samples were randomly taken from 300 adult males, aged between 25 and 40 years. TL was determined by real-time PCR to measure the number of the telomere (T) repeats to the number of a single-copy gene (S). We applied the multivariate linear regression model to compare the effect of each lipid adjusted serum levels of PCBs and OCPs congener on the TL, with adjustment for age, body mass index, education, smoking, and food patterns. Each doubling of the nondioxin-like PCBs, dioxin-like PCBs, and OCPs levels were associated with 1.9% [95% confidence interval (CI) - 0.70 to 5.40%], 2.5% (95% CI 0.30-8.3%), and - 2.4% (95% CI - 0.70 to - 6.2%) variation in the TL, respectively. The percent difference in the TL with exposure to nondioxin-like PCBs, dioxin-like PCBs, and OCPs for participants with older than age 37 years were 6.45% (95% CI 2.81-16.50%), 4.52% (95% CI 1.60-10.54%), and - 7.44% (95% CI - 1.55 to - 15.51%), respectively. Exposures to nondioxin-like PCBs (except for PCB 28 and 52) with high chlorine in structure and dioxin-like PCBs were related to longer TLs. Conversely, serum levels of OCPs can be associated with oxidative stress and systemic inflammation that lead to telomere shortening.
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Affiliation(s)
- Behrooz Karimi
- Department of Environmental Health Engineering, School of Health, Arak University of Medical Sciences, Arāk, Iran.
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Enghelab St., Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Enghelab St., Tehran, Iran
- Department of Research Methodology and Data Analysis, Institute for Environmental Research (IER), Tehran University of Medical Sciences, Kargar St., Enghelab Sq., Tehran, Iran
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Karimi B, Nabizadeh Nodehi R, Yunesian M. Serum level of PCBs and OCPs and leukocyte telomere length among adults in Tehran, Iran. CHEMOSPHERE 2020; 248:126092. [PMID: 32041072 DOI: 10.1016/j.chemosphere.2020.126092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 12/14/2019] [Accepted: 01/31/2020] [Indexed: 06/10/2023]
Abstract
Exposure to polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) may change leukocyte telomere length (TL) at the end of the DNA sequence. The purpose of this study was to investigate the association between PCBs and OCPs exposure with TL in Tehran adult males. Whole-blood samples were randomly taken from three hundred adult males in population-based cross-section study from October 2016 to November 2017. We studied the serum levels of PCBs, OCPs as well as socio-demographic characteristics of individuals. The quantitative PCR was used to investigate the number of the telomere (T) repeats to the number of a single copy gene. We measured the effect of each PCBs and OCPs congeners on TL using linear regressions adjusted for age, BMI, smoking, and dietary patterns. The median level of the six non-dioxin-likes, five dioxin-likes PCBs three OCPs and TL in the study population were 344.5, 306.0, 45.0 ng/g lipid and 5377.7 ± 573.4 base pairs, respectively. In the adjusted model, the percent difference in the TLs with exposure to Σnon-dioxin-like PCBs, Σdioxin-like PCBs, and OCPs were 1.93 (-0.70 to 5.4), 3.4 (1.8-8.3) and -2.4 (-0.80 to -6.2), respectively. In the fourth quartile compared to the first quartile, the percent difference in the TLs due to Σnon-dioxin-like PCBs, Σdioxin-like PCBs, and OCP exposure were 0.01 (-0.01 to 0.05), 10.3 (2.9-18.1) and -0.20 (-0.10 to -4.5), respectively. Exposures to ndl-PCBs and dl-PCBs (except for PCB28) were related to longer TLs, but OCPs exposure can be related to telomere shortening.
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Affiliation(s)
- Behrooz Karimi
- Department of Environmental Health Engineering, School of Health, Arak University of Medical Sciences, Arak, Iran.
| | - Ramin Nabizadeh Nodehi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Enghelab St., Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Enghelab St., Tehran, Iran; Department of Research Methodology and Data Analysis, Institute for Environmental Research (IER), Tehran University of Medical Sciences, Kargar St., Enghelab Sq., Tehran, Iran
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Stanganelli I, De Felici MB, Mandel VD, Caini S, Raimondi S, Corso F, Bellerba F, Quaglino P, Sanlorenzo M, Ribero S, Medri M, Farnetani F, Feliciani C, Pellacani G, Gandini S. The association between pesticide use and cutaneous melanoma: a systematic review and meta-analysis. J Eur Acad Dermatol Venereol 2020; 34:691-708. [PMID: 31541557 DOI: 10.1111/jdv.15964] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 08/23/2019] [Indexed: 01/20/2023]
Abstract
BACKGROUND The incidence of cutaneous melanoma (CM), the deadliest form of skin cancer, has gradually increased in the last decades among populations of European origin. Epidemiological studies suggested that farmers and agricultural workers are at an increased risk of CM because they were exposed to pesticides. However, little is known about the relationship between pesticides and CM. OBJECTIVES To investigate the association between exposure to pesticides and CM by systematically reviewing the literature. Secondary aim was to determine the categories of pesticides mainly involved in CM development. METHODS A systematic review of the literature was performed up to September 2018 using MEDLINE, Embase and Web of Science. Studies assessing CM risk in licensed pesticide applicators were considered. Strict criteria were established to select independent studies and risk estimates; random effect models, taking into account heterogeneity, were applied. A pooled risk estimate for CM was calculated for the use of each type of pesticide and type of exposure. Between-study and estimate heterogeneity was assessed and publication bias investigated. RESULTS A total of nine studies (two case-controls and seven cohorts) comprising 184 389 unique subjects were included. The summary relative risks for the categories 'herbicides - ever exposure', 'insecticides - ever exposure', 'any pesticide - ever exposure' and 'any pesticide - high exposure' resulted 1.85 [95% confidence interval (CI): 1.01, 3.36], 1.57 (95% CI: 0.58, 4.25), 1.31 (95% CI: 0.85, 2.04) and 2.17 (95% CI: 0.45, 10.36), respectively. Herbicides and insecticides had no between-study heterogeneity (I2 = 0%), while a significant heterogeneity (I2 > 50%) was detected for the high exposure to any pesticide. No indication for publication bias was found. CONCLUSIONS Individuals exposed to herbicides are at an increased risk of CM. Future properly designed observational studies are required to confirm this finding.
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Affiliation(s)
- I Stanganelli
- Skin Cancer Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Meldola, Italy
- Dermatology Department, University of Parma, Parma, Italy
| | - M B De Felici
- Dermatology Department, University of Parma, Parma, Italy
| | - V D Mandel
- Skin Cancer Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Meldola, Italy
| | - S Caini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - S Raimondi
- Molecular and Pharmaco-Epidemiology Unit, Department of Experimental Oncology, European Institute of Oncology (IEO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - F Corso
- Molecular and Pharmaco-Epidemiology Unit, Department of Experimental Oncology, European Institute of Oncology (IEO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - F Bellerba
- Molecular and Pharmaco-Epidemiology Unit, Department of Experimental Oncology, European Institute of Oncology (IEO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - P Quaglino
- Dermatologic Clinic, Department of Medical Sciences, University of Turin, Turin, Italy
| | - M Sanlorenzo
- Dermatologic Clinic, Department of Medical Sciences, University of Turin, Turin, Italy
| | - S Ribero
- Dermatologic Clinic, Department of Medical Sciences, University of Turin, Turin, Italy
| | - M Medri
- Skin Cancer Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Meldola, Italy
| | - F Farnetani
- Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - C Feliciani
- Dermatology Department, University of Parma, Parma, Italy
| | - G Pellacani
- Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - S Gandini
- Molecular and Pharmaco-Epidemiology Unit, Department of Experimental Oncology, European Institute of Oncology (IEO), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
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Zhou X, Wei W, Duan X, Zhang H, Feng X, Wang T, Wang P, Ding M, Liu S, Li L, Yao W, Wang Q, Acquaye RM, Liang H, Wang W, Yang Y. Effect of TRF1 rs3863242 polymorphism on telomere length in omethoate-exposed workers. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2020; 55:525-529. [PMID: 32077369 DOI: 10.1080/03601234.2020.1728167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Telomere length was found to be associated with omethoate exposure and polymorphisms in certain genes among occupational workers. However, whether the polymorphisms in telomere-binding protein genes influence telomere length remains unclear. To explore the correlation between telomere length and polymorphisms in telomere-binding protein genes, telomere length in peripheral blood leukocytes was determined by real-time quantitative polymerase chain reaction in 180 omethoate-exposed workers and 115 healthy controls. Polymorphisms in 10 pairs of alleles were detected using flight mass spectrometry or polymerase chain reaction-restriction fragment length polymorphism technique. The results showed that individuals with GG genotype in TRF1 rs3863242 had longer telomere lengths than those with AG + AA genotype in the control group (p = 0.005). The multiple regression analysis suggested that both omethoate exposure (b = 0.526, p < 0.001) and TRF1 rs3863242 GG (b = 0.220, p = 0.002) were related to a longer telomere length. In conclusion, GG genotype in TRF1 rs3863242 is linked to prolongation of telomere length, and individuals with GG genotype are recommended to strengthen health protection in a Chinese occupational omethoate-exposed population.
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Affiliation(s)
- Xiaoshan Zhou
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Wan Wei
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaoran Duan
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Hui Zhang
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaolei Feng
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Tuanwei Wang
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Pengpeng Wang
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Mingcui Ding
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Suxiang Liu
- Clinical Department, Zhengzhou Institute of Occupational Health, Zhengzhou, Henan, China
| | - Lei Li
- Clinical Department, Zhengzhou Institute of Occupational Health, Zhengzhou, Henan, China
| | - Wu Yao
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Qi Wang
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Reuben Mensah Acquaye
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Haiyong Liang
- BioMiao Biological Technology Co., Ltd, Beijing, China
| | - Wei Wang
- Department of Occupational health and occupational diseases, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
- The Key Laboratory of Nanomedicine and Health Inspection of Zhengzhou, Zhengzhou, Henan, China
| | - Yongli Yang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
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Lerro CC, Andreotti G, Wong JYY, Blair A, Rothman N, Beane Freeman LE. 2,4-D exposure and urinary markers of oxidative DNA damage and lipid peroxidation: a longitudinal study. Occup Environ Med 2020; 77:276-280. [DOI: 10.1136/oemed-2019-106267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/18/2019] [Accepted: 12/31/2019] [Indexed: 11/04/2022]
Abstract
Objective2,4-Dichlorophenoxyacetic acid (2,4-D) is a herbicide that is commonly used commercially, agriculturally and residentially worldwide. There is concern about its potential for carcinogenicity based on studies in laboratory animals demonstrating the potential for induction of oxidative stress. We conducted a longitudinal biomarker study of 31 pesticide applicators in Kansas who heavily applied 2,4-D and 34 non-applicator controls.MethodsWe used multivariable generalised linear mixed-effect models to evaluate the association between urinary 2,4-D and natural log-transformed 8-iso prostaglandin F2α (8-isoprostane) and 8-hydroxy-2'-deoxyguanosine (8-OHdG), adjusting for urinary creatinine, age, tobacco use and concomitant use of the herbicide picloram.ResultsCompared with non-applicator controls, urinary 2,4-D in the third quartile of exposure was associated with elevated 8-isoprostane (eβ=1.38, 95% CI 1.03 to 1.84). There was no association among the highest exposed and no exposure-response trend. 2,4-D exposure was not associated with 8-OHdG. Results were unchanged when restricted to participants who only applied 2,4-D (no picloram use).ConclusionsWe did not find evidence that increasing 2,4-D exposure was associated with 8-isoprostane or 8-OHdG. Future work should carefully evaluate potential confounders of this association, such as diet and physical activity, as well as additional biological markers of oxidative stress and damage.
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Lerro CC, Andreotti G, Koutros S, Lee WJ, Hofmann JN, Sandler DP, Parks CG, Blair A, Lubin JH, Beane Freeman LE. Alachlor Use and Cancer Incidence in the Agricultural Health Study: An Updated Analysis. J Natl Cancer Inst 2019; 110:950-958. [PMID: 29471327 DOI: 10.1093/jnci/djy005] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/08/2018] [Indexed: 11/13/2022] Open
Abstract
Background The herbicide alachlor has been widely used in US agriculture since its introduction in 1969. Experimental animal studies show that alachlor causes tumors in vivo; however, few epidemiologic studies have examined associations with human cancer risk. We evaluated alachlor use and cancer incidence in the Agricultural Health Study, updating an earlier analysis that suggested associations with lymphohematopoietic cancers with an additional 540 142 person-years of follow-up and 5113 cancer cases. Methods Pesticide applicators in Iowa and North Carolina reported lifetime alachlor use at enrollment (1993-1997) and follow-up (1999-2005). Exposure was characterized by cumulative intensity-weighted days. We estimated relative risks (RRs) and 95% confidence intervals (CIs) using Poisson regression for incident cancers from enrollment through 2012(NC)/2013(IA). Models adjusted for age, tobacco, alcohol, and other pesticides. All statistical tests are two-sided. Results Among 49 685 applicators, 25 640 (51.6%) used alachlor, with 3534 alachlor-exposed cancers. The relative risks of laryngeal cancer (nexposed = 34) increased in the second (RR = 4.68, 95% CI = 1.95 to 11.23), third (RR = 6.04, 95% CI = 2.44 to 14.99), and fourth quartiles (RR = 7.10, 95% CI = 2.58 to 19.53) of intensity-weighted days of use compared with no use (Ptrend = .001). Risk of myeloid leukemia was elevated, though not statistically significantly so, in the fourth quartile of intensity-weighted days of use (RR = 1.82, 95% CI = 0.85 to 3.87, Ptrend = .17). Conclusions We observed a strong positive association with use of alachlor and laryngeal cancer and a weaker association with myeloid leukemia. The strength and robustness of the association with laryngeal cancer suggests that long-term occupational exposure to alachlor may be a risk factor for laryngeal cancer. This first report requires confirmation.
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Affiliation(s)
- Catherine C Lerro
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Gabriella Andreotti
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Stella Koutros
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Won Jin Lee
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Jonathan N Hofmann
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Dale P Sandler
- National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Christine G Parks
- National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Aaron Blair
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Jay H Lubin
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Laura E Beane Freeman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
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Mahaboonpeeti R, Kongtip P, Nankongnab N, Tipayamongkholgul M, Bunngamchairat A, Yoosook W, Woskie S. Evaluation of Dermal Exposure to the Herbicide Alachlor Among Vegetable Farmers in Thailand. Ann Work Expo Health 2019; 62:1147-1158. [PMID: 30239593 DOI: 10.1093/annweh/wxy081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 08/26/2018] [Indexed: 11/12/2022] Open
Abstract
Vegetable farmers applying the herbicide alachlor may be highly exposed through dermal contact when spraying. Dermal patches were attached to 10 locations on the farmers' skin when they mixed and applied alachlor in vegetable farming areas in Thailand. Measurements were made on farmers using either a backpack sprayer with a 2 stroke gasoline motor and fan or a battery operated pump. Forty-seven vegetable farmers in Bungphra subdistrict of Thailand participated in this study. Both motorized and battery pump backpack sprayers wearing long-sleeve shirts had significantly lower alachlor concentrations on the dermal patches under their long-sleeve shirts compared to those who wore only short-sleeve shirts, regardless of the sprayer type. Moreover, sprayers wearing long pants had significantly lower alachlor concentrations on dermal patches placed under the pants on the lower legs than those wearing short pants, regardless of the sprayer type. The highest estimated alachlor exposures were found on the upper legs (median = 9.29 µg/h) for those using a 2 stroke engine/fan backpack sprayer and on the lower legs (2.87 µg/h) for those using the battery operated pump backpack sprayer. The estimated total body alachlor exposures of applicators using the 2 stroke engine/fan backpack sprayer (219.48 µg/h) were significantly higher than those using the battery operated pump backpack sprayer (15.50 µg/h). Using long-sleeve shirts as personal protection reduced alachlor exposures for the arms 97-99% and wearing long pants reduced alachlor exposure to the legs for 81-99%. Thus, training about the protection provided by clothing choices would be one step in improving the health and safety of Thai farmers.
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Affiliation(s)
- Redeerat Mahaboonpeeti
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, Thailand
| | - Pornpimol Kongtip
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, Thailand
| | - Noppanun Nankongnab
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, Thailand
| | - Mathuros Tipayamongkholgul
- Department of Epidemiology, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, Thailand
| | - Ariya Bunngamchairat
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, Thailand
| | - Witaya Yoosook
- Faculty of Public Health, Mahasarakham University, Kantarawichai, Maha Sarakham, Thailand
| | - Susan Woskie
- Department of Public Health, University of Massachusetts Lowell, Lowell, MA, USA
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Ferrari L, Pavanello S, Bollati V. Molecular and epigenetic markers as promising tools to quantify the effect of occupational exposures and the risk of developing non-communicable diseases. LA MEDICINA DEL LAVORO 2019; 110:168-190. [PMID: 31268425 PMCID: PMC7812541 DOI: 10.23749/mdl.v110i3.8538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 06/06/2019] [Indexed: 12/18/2022]
Abstract
Non-communicable diseases (NCDs) are chronic diseases that are by far the leading cause of death in the world. Many occupational hazards, together with social, economic and demographic factors, have been associated to NCDs development. Genetic susceptibility or environmental exposures alone are not usually sufficient to explain the pathogenesis of NCDs, but can be integrated in a more complex scenario that can result in pathological phenotypes. Epigenetics is a crucial component of this scenario, as its changes are related to specific exposures, therefore potentially able to display the effects of environment on the genome, filling the gap between genetic asset and environment in explaining disease development. To date, the most promising biomarkers have been assessed in occupational cohorts as well as in case/control studies and include DNA methylation, histone modifications, microRNA expression, extracellular vesicles, telomere length, and mitochondrial alterations.
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Affiliation(s)
- Luca Ferrari
- EPIGET - Epidemiology, Epigenetics and Toxicology Lab, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, via San Barnaba 8, 20122 Milan, Italy..
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Association of Telomere Length With Chromosomal Damage Among Chinese Workers Exposed to Vinyl Chloride Monomer. J Occup Environ Med 2018; 59:e252-e256. [PMID: 29215482 DOI: 10.1097/jom.0000000000001177] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To explore the relationship between relative telomere length (RTL) and chromosomal damage represented by micronucleus (MN) frequencies among vinyl chloride monomer (VCM) -exposed workers. METHODS A group of 126 VCM-exposed workers, 60 internal controls, and 25 external controls were examined for RTL by Quantitative polymerase chain reaction and MN frequencies by cytokinesis-block micronucleus test. Cumulative exposure dose was used to estimate the exposure of VCM-exposed workers. RESULTS The RTL were significantly shorter in exposed workers and internal controls than in external controls. The exposed workers had significantly increased MN frequencies than both control groups. Additionally, MN frequencies were negatively associated with RTL in VCM-exposed group. CONCLUSIONS VCM exposure may alter telomere length, which could be a potential biomarker of susceptibility to chromosomal damage.
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Abstract
Studies of rare and common illnesses have led to remarkable progress in the understanding of the role of telomeres (nucleoprotein complexes at chromosome ends essential for chromosomal integrity) in human disease. Telomere biology disorders encompass a growing spectrum of conditions caused by rare pathogenic germline variants in genes encoding essential aspects of telomere function. Dyskeratosis congenita, a disorder at the severe end of this spectrum, typically presents in childhood with the classic triad of abnormal skin pigmentation, nail dystrophy, and oral leukoplakia, accompanied by a very high risk of bone marrow failure, cancer, pulmonary fibrosis, and other medical problems. In contrast, the less severe end of the telomere biology disorder spectrum consists of middle-age or older adults with just one feature typically seen in dyskeratosis congenita, such as pulmonary fibrosis or bone marrow failure. In the common disease realm, large-scale molecular epidemiology studies have discovered novel associations between illnesses, such as cancer, heart disease, and mental health, and both telomere length and common genetic variants in telomere biology genes. This review highlights recent findings of telomere biology in human disease from both the rare and common disease perspectives. Multi-disciplinary collaborations between clinicians, basic scientists, and epidemiologist are essential as we seek to incorporate new telomere biology discoveries to improve health outcomes.
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Affiliation(s)
- Sharon A. Savage
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
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Kahl VFS, Dhillon VS, Simon D, da Silva FR, Salvador M, Branco CDS, Cappetta M, Martínez-López W, Thiesen FV, Dias JF, Souza CTD, Fenech M, da Silva J. Chronic occupational exposure endured by tobacco farmers from Brazil and association with DNA damage. Mutagenesis 2018; 33:119-128. [PMID: 29669110 DOI: 10.1093/mutage/gex045] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 10/24/2017] [Indexed: 12/17/2023] Open
Abstract
Tobacco farming is an important economic income in Brazil, although it has been challenged as regard the occupational exposure to both pesticides and nicotine endured by farmers. Chronic occupational exposure to complex mixtures can lead to health hazardous. We examined genomic instability and epigenetic changes in tobacco farmers occupationally exposed to pesticide mixtures and nicotine at tobacco fields. DNA damage was assessed by alkaline comet assay in blood cells. Genomic DNA was isolated, and telomere length was measured using quantitative polymerase chain reaction assay. We measured 5-methyl-2'-deoxycytidine, a marker of global DNA methylation, and p16 promoter methylation. The oxidative profile was evaluated by trolox equivalent antioxidant capacity and lipid peroxidation (thiobarbituric acid reactive substances) in serum. Exposure parameters, plasma cotinine and inorganic element levels, were also measured. DNA damage was significantly elevated for farmers in relation to unexposed group (P < 0.001; Mann-Whitney test) and positively associated with years of exposure. Inverse relationship between DNA damage and total equivalent antioxidant activity was demonstrated for exposed and unexposed groups. Exposed group showed significantly shorter telomeres (P < 0.001; unpaired t-test) and DNA hypomethylation (P < 0.001; unpaired t-test), as well as p16 hypermethylation (P = 0.003; Mann-Whitney test). Lipid peroxidation was increased for exposed group in relation to unexposed one (P = 0.02; Mann-Whitney test) and presented a positive correlation with global DNA methylation (P = 0.0264). Farmers have increased plasma cotinine levels (P < 0.001) and inorganic elements (phosphorus, sulphur and chlorine) in relation to unexposed group. Elevated oxidative stress levels due to chronic occupational pesticide mixtures and nicotine exposure in tobacco farmers were associated with higher DNA damage, shorter telomeres and altered DNA methylation. Telomere-accelerated attrition due to exposure may be potential intermediate step before a disease state.
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Affiliation(s)
- Vívian F Silva Kahl
- Laboratory of Toxicological Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, São José, Canoas, Rio Grande do Sul, Brazil
| | - Varinderpal Singh Dhillon
- Health and Biosecurity Flagship, Commonwealth Scientific and Industrial Research Organization (CSIRO), Adelaide, South Australia, Australia
| | - Daniel Simon
- Laboratory of Human Molecular Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, São José, Canoas, Rio Grande do Sul, Brazil
| | - Fernanda Rabaioli da Silva
- Postgraduate Program in Environmental Impact Assessment, UniLaSalle, Av. Victor Barreto, Canoas, Rio Grande do Sul, Brazil
| | - Mirian Salvador
- Biotechnology Institute, University of Caxias do Sul, Rua Travessão Solferino, Cruzeiro, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Cátia Dos Santos Branco
- Biotechnology Institute, University of Caxias do Sul, Rua Travessão Solferino, Cruzeiro, Caxias do Sul, Rio Grande do Sul, Brazil
| | - Mónica Cappetta
- Laboratory of Genetic Epidemiology, Genetics Department, Medicine School, Universidad de la República, Av. General Flores, Montevideo, Uruguay
| | - Wilner Martínez-López
- Department of Genetic Toxicology and Chromosome Patology, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia, Montevideo, Uruguay
| | - Flávia V Thiesen
- Toxicology Institute, Catholic Pontifice University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Johnny F Dias
- Ion Implantation Laboratory, Physics Institute, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, Agronomia, Porto Alegre, Rio Grande do Sul, Brazil
| | - Claudia Telles de Souza
- Ion Implantation Laboratory, Physics Institute, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, Agronomia, Porto Alegre, Rio Grande do Sul, Brazil
| | - Michael Fenech
- Health and Biosecurity Flagship, Commonwealth Scientific and Industrial Research Organization (CSIRO), Adelaide, South Australia, Australia
| | - Juliana da Silva
- Laboratory of Toxicological Genetics, Post-Graduate Program in Cellular and Molecular Biology Applied to Health (PPGBioSaúde), Lutheran University of Brazil (ULBRA), Av. Farroupilha, São José, Canoas, Rio Grande do Sul, Brazil
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Abstract
PURPOSE OF REVIEW Innovations in agriculture and medicine as well as industrial and domestic technologies are essential for the growing and aging global population. These advances generally require the use of novel natural or synthetic chemical agents with the potential to affect human health. Here, we attempt to highlight environmental chemicals and select drugs with the potential to exacerbate aging by directly affecting molecular aging cascades focusing particular attention on the brain. Finally, we call attention to some potential fruitful areas of research, particularly with advanced molecular profiling that could aid in prevention or mitigation of environmental chemical toxic influences in the periphery and the brain. RECENT FINDINGS We briefly summarize new research and highlight a recent study designed to prospectively identify agrochemicals with the potential to induce neurological diseases and place these discoveries into the already rich neurodegeneration and aging literature. Collectively, the research reviewed briefly here highlight chemicals with the true potential to accelerate aging, particularly in the brain, by eliciting elevated free radical stress and mitochondrial dysfunction. We make general recommendations about improved methodological approaches toward identification and regulation of chemicals that are gerontogenic to the brain.
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Affiliation(s)
- Brandon L Pearson
- DZNE, German Center for Neurodegenerative Diseases, Sigmund-Freud Str 27, 53127, Bonn, Germany.
| | - Dan Ehninger
- DZNE, German Center for Neurodegenerative Diseases, Sigmund-Freud Str 27, 53127, Bonn, Germany
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Abstract
Pyrethroids are commonly used around the home and in agricultural production to control insects. Human contact to one or more pyrethroid insecticides is likely. Numerous epidemiology studies have evaluated the association between health outcomes in humans and pyrethroid exposure. The purpose of this review was to identify and evaluate the quality of pyrethroid-related epidemiology studies that addressed chronic health effects, and compare findings with animal toxicology studies. We evaluated the quality of 61 studies published between 2000 and 2016 by using elements of outcome, exposure metric, exposure level, and study design. None of the 61 publications demonstrated strong quality for all elements. A few of the outcome measures were strong, particularly those relying upon medical diagnoses. Most of the pyrethroid epidemiology studies used a poor exposure metric, relying upon a single sample of pyrethroid urinary metabolites, which is subject to misclassification of past exposures. In addition, many studies were a cross-sectional design, preventing an evaluation of the temporality of the exposure-disease association. Furthermore, none of the effects observed in the epidemiological literature was concordant with toxicological effects noted in extensive testing of pyrethroids in animals. In order to provide more robust data on potential health outcomes from low dose exposure to pyrethroid insecticides, future epidemiological studies should fully characterize an adverse outcome, include exposure validation components, and quantify exposure over time.
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Affiliation(s)
- Carol J Burns
- a Burns Epidemiology Consulting, LLC , Sanford , MI , USA
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Hanssen LM, Schutte NS, Malouff JM, Epel ES. The Relationship Between Childhood Psychosocial Stressor Level and Telomere Length: A Meta-Analysis. Health Psychol Res 2017; 5:6378. [PMID: 28603779 PMCID: PMC5452631 DOI: 10.4081/hpr.2017.6378] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/30/2017] [Indexed: 02/04/2023] Open
Abstract
This meta-analysis examined the association between the level of childhood psychosocial stressors and telomere length, an important health biomarker. The meta-analysis, including 27 samples and 16,238 participants, found a significant association of -0.08 between a higher level of childhood stressors and shorter telomere length at a mean age of 42 across studies. Moderator analyses showed a trend in the direction of effect sizes being significantly larger with shorter times between the stressors and telomere measurement. Moderator analyses showed significantly higher effect sizes for studies that used a categorical method for assessing child stressor level and for assays completed with qPCR rather than with the Southern blot method. There was no significant moderation of effect size by whether study assayed leukocytes or buccal cells, whether the study assessed child stressor level by memory-based recall versus archival records, and whether the study controlled for age, sex, or additional variables. The results, focused on childhood events, add to prior findings that perceived stress and negative emotions are associated with telomere length.
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Affiliation(s)
| | | | - John M Malouff
- Department of Psychology, University of New England, Australia
| | - Elissa S Epel
- Department of Psychiatry, University of California, San Francisco, CA, USA
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Borie R, Kannengiesser C, Sicre de Fontbrune F, Gouya L, Nathan N, Crestani B. Management of suspected monogenic lung fibrosis in a specialised centre. Eur Respir Rev 2017; 26:26/144/160122. [DOI: 10.1183/16000617.0122-2016] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 02/21/2017] [Indexed: 12/20/2022] Open
Abstract
At least 10% of patients with interstitial lung disease present monogenic lung fibrosis suspected on familial aggregation of pulmonary fibrosis, specific syndromes or early age of diagnosis. Approximately 25% of families have an identified mutation in genes mostly involved in telomere homeostasis, and more rarely in surfactant homeostasis.Beyond pathophysiological knowledge, detection of these mutations has practical consequence for patients. For instance, mutations involved in telomere homeostasis are associated with haematological complications after lung transplantation and may require adapted immunosuppression. Moreover, relatives may benefit from a clinical and genetic evaluation that should be specifically managed.The field of genetics of pulmonary fibrosis has made great progress in the last 10 years, raising specific problems that should be addressed by a specialised team.
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Kahl VFS, da Silva J, da Silva FR. Influence of exposure to pesticides on telomere length in tobacco farmers: A biology system approach. Mutat Res 2016; 791-792:19-26. [PMID: 27566293 DOI: 10.1016/j.mrfmmm.2016.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 08/15/2016] [Accepted: 08/15/2016] [Indexed: 06/06/2023]
Abstract
Various pesticides in the form of mixtures must be used to keep tobacco crops pest-free. Recent studies have shown a link between occupational exposure to pesticides in tobacco crops and increased damage to the DNA, mononuclei, nuclear buds and binucleated cells in buccal cells as well as micronuclei in lymphocytes. Furthermore, pesticides used specifically for tobacco crops shorten telomere length (TL) significantly. However, the molecular mechanism of pesticide action on telomere length is not fully understood. Our study evaluated the interaction between a complex mixture of chemical compounds (tobacco cultivation pesticides plus nicotine) and proteins associated with maintaining TL, as well as the biological processes involved in this exposure by System Biology tools to provide insight regarding the influence of pesticide exposure on TL maintenance in tobacco farmers. Our analysis showed that one cluster was associated with TL proteins that act in bioprocesses such as (i) telomere maintenance via telomere lengthening; (ii) senescence; (iii) age-dependent telomere shortening; (iv) DNA repair (v) cellular response to stress and (vi) regulation of proteasome ubiquitin-dependent protein catabolic process. We also describe how pesticides and nicotine regulate telomere length. In addition, pesticides inhibit the ubiquitin proteasome system (UPS) and consequently increase proteins of the shelterin complex, avoiding the access of telomerase in telomere and, nicotine activates UPS mechanisms and promotes the degradation of human telomerase reverse transcriptase (hTERT), decreasing telomerase activity.
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Affiliation(s)
- Vivian Francília Silva Kahl
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil.
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Salerno C, Carcagnì A, Sacco S, Palin LA, Vanhaecht K, Panella M, Guido D. An Italian population-based case-control study on the association between farming and cancer: Are pesticides a plausible risk factor? ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2016; 71:147-56. [PMID: 25942634 DOI: 10.1080/19338244.2015.1027808] [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] [Indexed: 05/04/2023]
Abstract
This population-based case-control study investigated the association between farming (a proxy for pesticide exposure) and cancer in the Vercelli suburban area (northwest Italy). The residents, aged 25 to 79 years, in the above-mentioned area during the period 2002-2009 were considered. Cases were all the first hospital admissions for cancer. Controls were all the subjects not included in the cases and not excluded from the study. Cases and controls were classified according to whether they occupationally resulted farmers or nonfarmers during the period 1965-2009. Cancer odds ratios (ORs) between farmers and nonfarmers were calculated with generalized linear mixed models adjusted by gender and age. Farmers showed higher odds for all cancers (OR=1.459; p < .001), nonmelanoma skin cancer, colorectal cancer, and breast cancer. The results suggest a plausible association between pesticide exposure and cancer occurrence.
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Affiliation(s)
- Christian Salerno
- a Department of Translational Medicine , University of Eastern Piedmont "Amedeo Avogadro" , Novara , Italy
| | - Antonella Carcagnì
- b Department of Brain and Behavioural Sciences , Section of Biostatistics, Neurophysiology and Psychiatry, Unit of Medical Statistics and Computational Genomics, Multivariate Statistics Laboratory, University of Pavia , Pavia , Italy
| | - Sara Sacco
- c Department of Brain and Behavioural Sciences , Section of Biostatistics, Neurophysiology and Psychiatry, Unit of Medical Statistics and Computational Genomics, Clinical Epidemiology and Health Planning Laboratory, University of Pavia , Pavia , Italy
| | - Lucio Antonio Palin
- a Department of Translational Medicine , University of Eastern Piedmont "Amedeo Avogadro" , Novara , Italy
| | - Kris Vanhaecht
- d Health Services Research Group, School of Public Health, Faculty of Medicine, KU Leuven, University of Leuven , Leuven , Belgium
| | - Massimiliano Panella
- a Department of Translational Medicine , University of Eastern Piedmont "Amedeo Avogadro" , Novara , Italy
| | - Davide Guido
- b Department of Brain and Behavioural Sciences , Section of Biostatistics, Neurophysiology and Psychiatry, Unit of Medical Statistics and Computational Genomics, Multivariate Statistics Laboratory, University of Pavia , Pavia , Italy
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40
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Fortes C, Mastroeni S, Segatto M M, Hohmann C, Miligi L, Bakos L, Bonamigo R. Occupational Exposure to Pesticides With Occupational Sun Exposure Increases the Risk for Cutaneous Melanoma. J Occup Environ Med 2016; 58:370-5. [PMID: 27058477 DOI: 10.1097/jom.0000000000000665] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE The objective of the study was to examine the association between occupational exposure to pesticides and cutaneous melanoma, controlling for all possible confounders. METHODS A pooled analysis of two case-control studies was conducted in two different geographic areas (Italy and Brazil). Detailed pesticides exposure histories were obtained. RESULTS Ever use of any pesticide was associated with a high risk of cutaneous melanoma (odds ratio 2.58; 95% confidence interval 1.18-5.65) in particular exposure to herbicides (glyphosate) and fungicides (mancozeb, maneb), after controlling for confounding factors. When subjects were exposed to both pesticides and occupational sun exposure, the risk increased even more (odds ratio 4.68; 95% confidence interval 1.29-17.0). CONCLUSIONS The study suggests an augmented risk of cutaneous melanoma among subjects with exposure to pesticides, in particular among those exposed to occupational sun exposure.
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Affiliation(s)
- Cristina Fortes
- Epidemiology Unit, Istituto Dermopatico dell'Immacolata, IDI- IRCCS-FLMM, Rome, Italy (Fortes, Mastroeni); Graduate Program in Pathology, Federal University of Health Sciences of Porto Alegre, Brazil (Segatto M, Hohmann B, Bonamigo); Occupational and Environmental Epidemiology Unit, ISPO Cancer Prevention and Research, Institute, Florence, Italy (Miligi); Dermatology Service, Federal University of Health Sciences of Porto Alegre (Bonamigo); and Dermatology Service, Federal University of Rio Grande do Sul, Porto Alegre, Brazil (Bakos)
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Yabuta S, Masaki M, Shidoji Y. Associations of Buccal Cell Telomere Length with Daily Intake of β-Carotene or α-Tocopherol Are Dependent on Carotenoid Metabolism-related Gene Polymorphisms in Healthy Japanese Adults. J Nutr Health Aging 2016; 20:267-74. [PMID: 26892575 DOI: 10.1007/s12603-015-0577-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Telomere length shortening is modulated not only by aging, but also by both genetic and environmental factors. The aim of this study was to investigate the interactions between antioxidant nutrient metabolism-related gene single nucleotide polymorphisms (the genetic factors) and nutrient intake (the environmental factors) in their effects on telomere length shortening. SETTING AND PARTICIPANTS Data were collected on the relative telomere lengths (RTLs) of buccal cells and the habitual food intake of 70 healthy Japanese adults. MEASUREMENTS All subjects were genotyped for two common single nucleotide polymorphisms: rs6564851 in the β-carotene-15,15'-mono-oxygenase 1 (BCMO1) gene and rs362090 in the intestine-specific homeobox (ISX) gene. RESULTS Univariate analysis revealed that buccal RTL was not significantly modulated by either age or gender. Then, we subdivided the study population into four groups based on combinations of the rs6564851 and rs362090 genotypes. After this subdivision, we showed a positive effect of daily α- or β-carotene intake on buccal RTL in the ISX rs362090 G-allele carrier + BCMO1 rs6564851 GG-genotype group (p = 0.026). Additionally, daily intake of another antioxidative fat-soluble vitamin, α-tocopherol, was positively associated with buccal RTL in the ISX rs362090 AA-homozygote + BCMO1 rs6564851 T-allele carrier group (p = 0.037). CONCLUSION Our study clearly indicates that high dietary intake of the antioxidants α, β-carotene and α-tocopherol protects buccal cells from RTL shortening, depending on the genetic background of antioxidant vitamin-related genes.
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Affiliation(s)
- S Yabuta
- Yoshihiro Shidoji, Molecular and Cellular Biology, Graduate School of Human Health Science, University of Nagasaki, 1-1-1 Academy Hills, Nagayo, Nagasaki 851-2195, Japan. E-mail:
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Zhang JH, Li Y, Song XB, Ji XH, Sun HN, Wang H, Fu SB, Zhao LJ, Sun DJ. Differential expression of serum proteins in rats subchronically exposed to arsenic identified by iTRAQ-based proteomic technology-14-3-3 ζ protein to serve as a potential biomarker. Toxicol Res (Camb) 2016; 5:651-659. [PMID: 30090378 DOI: 10.1039/c5tx00393h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 01/31/2016] [Indexed: 12/15/2022] Open
Abstract
Arsenic is a multi-system toxicant. However, the mechanism of arsenic toxicity is not fully clarified and few effective protein biomarkers could be used for arsenic poisoning. This study was to investigate the differentially expressed proteins in the serum of rats subchronically exposed to arsenic. Sixty male rats were randomly divided into four groups, and the dose of sodium arsenite in drinking water for each group was 0, 2, 10, and 50 mg L-1, respectively. The exposure lasted for 12 weeks. An Isobaric tags for relative and absolute quantitation (iTRAQ)-based proteomic approach was used to identify the differentially expressed proteins in serum between control and 50 mg L-1 groups. A total of 201 serum proteins were identified by iTRAQ, of which 12 were significantly changed by arsenic exposure with two up-regulated and ten down-regulated proteins. One down-regulated protein 14-3-3 ζ, an abundant protein expressed in the brain, was verified by ELISA using serum samples and by immunohistochemical, real time PCR, and western blot methods using brain tissues in four groups. Our work provided valuable insight into the serum protein changes in rats exposed to arsenic, and indicated that 14-3-3 ζ may serve as a useful biomarker for nervous damage caused by arsenic poisoning.
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Affiliation(s)
- Jin Hui Zhang
- Key Lab of Etiologic Epidemiology of National Health and Family Planning Commission , Key Lab of Etiologic Epidemiology of Education Bureau of Heilongjiang Province , The Center for Endemic Disease Control , Chinese Center for Disease Control and Prevention , Harbin Medical University , Harbin 150081 , China . ; ; ; Tel: (+86)-451-8750- 2980
| | - Ying Li
- Key Lab of Etiologic Epidemiology of National Health and Family Planning Commission , Key Lab of Etiologic Epidemiology of Education Bureau of Heilongjiang Province , The Center for Endemic Disease Control , Chinese Center for Disease Control and Prevention , Harbin Medical University , Harbin 150081 , China . ; ; ; Tel: (+86)-451-8750- 2980
| | - Xuan Bo Song
- Key Lab of Etiologic Epidemiology of National Health and Family Planning Commission , Key Lab of Etiologic Epidemiology of Education Bureau of Heilongjiang Province , The Center for Endemic Disease Control , Chinese Center for Disease Control and Prevention , Harbin Medical University , Harbin 150081 , China . ; ; ; Tel: (+86)-451-8750- 2980
| | - Xiao Hong Ji
- Key Lab of Etiologic Epidemiology of National Health and Family Planning Commission , Key Lab of Etiologic Epidemiology of Education Bureau of Heilongjiang Province , The Center for Endemic Disease Control , Chinese Center for Disease Control and Prevention , Harbin Medical University , Harbin 150081 , China . ; ; ; Tel: (+86)-451-8750- 2980
| | - Hong Na Sun
- Key Lab of Etiologic Epidemiology of National Health and Family Planning Commission , Key Lab of Etiologic Epidemiology of Education Bureau of Heilongjiang Province , The Center for Endemic Disease Control , Chinese Center for Disease Control and Prevention , Harbin Medical University , Harbin 150081 , China . ; ; ; Tel: (+86)-451-8750- 2980
| | - Hui Wang
- Community Health Service Center of Nanxiang Town , Jiading District , Shanghai 201802 , China
| | - Song Bin Fu
- The Laboratory of Medical Genetics , Harbin Medical University , Harbin 150081 , China
| | - Li Jun Zhao
- Key Lab of Etiologic Epidemiology of National Health and Family Planning Commission , Key Lab of Etiologic Epidemiology of Education Bureau of Heilongjiang Province , The Center for Endemic Disease Control , Chinese Center for Disease Control and Prevention , Harbin Medical University , Harbin 150081 , China . ; ; ; Tel: (+86)-451-8750- 2980
| | - Dian Jun Sun
- Key Lab of Etiologic Epidemiology of National Health and Family Planning Commission , Key Lab of Etiologic Epidemiology of Education Bureau of Heilongjiang Province , The Center for Endemic Disease Control , Chinese Center for Disease Control and Prevention , Harbin Medical University , Harbin 150081 , China . ; ; ; Tel: (+86)-451-8750- 2980
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Nahta R, Al-Mulla F, Al-Temaimi R, Amedei A, Andrade-Vieira R, Bay SN, Brown DG, Calaf GM, Castellino RC, Cohen-Solal KA, Colacci A, Cruickshanks N, Dent P, Di Fiore R, Forte S, Goldberg GS, Hamid RA, Krishnan H, Laird DW, Lasfar A, Marignani PA, Memeo L, Mondello C, Naus CC, Ponce-Cusi R, Raju J, Roy D, Roy R, Ryan EP, Salem HK, Scovassi AI, Singh N, Vaccari M, Vento R, Vondráček J, Wade M, Woodrick J, Bisson WH. Mechanisms of environmental chemicals that enable the cancer hallmark of evasion of growth suppression. Carcinogenesis 2015; 36 Suppl 1:S2-18. [PMID: 26106139 DOI: 10.1093/carcin/bgv028] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
As part of the Halifax Project, this review brings attention to the potential effects of environmental chemicals on important molecular and cellular regulators of the cancer hallmark of evading growth suppression. Specifically, we review the mechanisms by which cancer cells escape the growth-inhibitory signals of p53, retinoblastoma protein, transforming growth factor-beta, gap junctions and contact inhibition. We discuss the effects of selected environmental chemicals on these mechanisms of growth inhibition and cross-reference the effects of these chemicals in other classical cancer hallmarks.
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Affiliation(s)
- Rita Nahta
- Departments of Pharmacology and Hematology & Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, GA 30322, USA, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Experimental and Clinical Medicine, University of Firenze, 50134 Florence, Italy, Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada, Program in Genetics and Molecular Biology, Graduate Division of Biological and Biomedical Sciences, Emory University, Atlanta, GA 30322, USA, Department of Environmental and Radiological Health Sciences/Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA, Instituto de Alta Investigacion, Universidad de Tarapaca, Arica 8097877, Chile, Division of Hematology and Oncology, Department of Pediatrics, Children's Healthcare of Atlanta and Emory University, Atlanta, GA 30322, USA, Department of Medicine/Medical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901-1914, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Departments of Neurosurgery and Biochemistry and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 980033, USA, Department of Biological, Chemical, and Pharmaceutical Sciences and Technologies, Polyclinic Plexus, University of Palermo, 90127 Palermo, Italy, Mediterranean Institute of Oncology, 95029 Viagrande, Italy, Graduate School of Biomedical Sciences and Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084-1501, USA, Department of Biomedical Science, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Department of Anatomy and Cell Biology, University of Western Ontario, London, Ontari
| | - Fahd Al-Mulla
- Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | | | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Firenze, 50134 Florence, Italy
| | - Rafaela Andrade-Vieira
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Sarah N Bay
- Program in Genetics and Molecular Biology, Graduate Division of Biological and Biomedical Sciences, Emory University, Atlanta, GA 30322, USA
| | - Dustin G Brown
- Department of Environmental and Radiological Health Sciences/Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Gloria M Calaf
- Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA, Instituto de Alta Investigacion, Universidad de Tarapaca, Arica 8097877, Chile
| | - Robert C Castellino
- Division of Hematology and Oncology, Department of Pediatrics, Children's Healthcare of Atlanta and Emory University, Atlanta, GA 30322, USA
| | - Karine A Cohen-Solal
- Department of Medicine/Medical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901-1914, USA
| | - Annamaria Colacci
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Nichola Cruickshanks
- Departments of Neurosurgery and Biochemistry and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 980033, USA
| | - Paul Dent
- Departments of Neurosurgery and Biochemistry and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 980033, USA
| | - Riccardo Di Fiore
- Department of Biological, Chemical, and Pharmaceutical Sciences and Technologies, Polyclinic Plexus, University of Palermo, 90127 Palermo, Italy
| | - Stefano Forte
- Mediterranean Institute of Oncology, 95029 Viagrande, Italy
| | - Gary S Goldberg
- Graduate School of Biomedical Sciences and Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084-1501, USA
| | - Roslida A Hamid
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia
| | - Harini Krishnan
- Graduate School of Biomedical Sciences and Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084-1501, USA
| | - Dale W Laird
- Department of Anatomy and Cell Biology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Ahmed Lasfar
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ 60503, USA
| | - Paola A Marignani
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Lorenzo Memeo
- Mediterranean Institute of Oncology, 95029 Viagrande, Italy
| | - Chiara Mondello
- Institute of Molecular Genetics, National Research Council, 27100 Pavia, Italy
| | - Christian C Naus
- Department of Cellular & Physiological Sciences, Life Sciences Institute, Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Richard Ponce-Cusi
- Instituto de Alta Investigacion, Universidad de Tarapaca, Arica 8097877, Chile
| | - Jayadev Raju
- Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada
| | - Debasish Roy
- Department of Natural Science, The City University of New York at Hostos Campus, Bronx, NY 10451, USA
| | - Rabindra Roy
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC 20057, USA
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences/Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Hosni K Salem
- Urology Dept., kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt
| | - A Ivana Scovassi
- Institute of Molecular Genetics, National Research Council, 27100 Pavia, Italy
| | - Neetu Singh
- Advanced Molecular Science Research Centre, King George's Medical University, Lucknow, UP 226003, India
| | - Monica Vaccari
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Renza Vento
- Department of Biological, Chemical, and Pharmaceutical Sciences and Technologies, Polyclinic Plexus, University of Palermo, 90127 Palermo, Italy, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Jan Vondráček
- Department of Cytokinetics, Institute of Biophysics AS CR, Brno 612 65, Czech Republic
| | - Mark Wade
- Center for Genomic Science of IIT@SEMM, Istituto Italiano di Tecnologia (IIT), Milan 16163, Italy and
| | - Jordan Woodrick
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC 20057, USA
| | - William H Bisson
- Environmental and Molecular Toxicology, Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
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44
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Andreotti G, Hoppin JA, Hou L, Koutros S, Gadalla SM, Savage SA, Lubin J, Blair A, Hoxha M, Baccarelli A, Sandler D, Alavanja M, Beane Freeman LE. Pesticide Use and Relative Leukocyte Telomere Length in the Agricultural Health Study. PLoS One 2015. [PMID: 26196902 PMCID: PMC4510132 DOI: 10.1371/journal.pone.0133382] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Some studies suggest that telomere length (TL) may be influenced by environmental exposures, including pesticides. We examined associations between occupational pesticide use reported at three time points and relative telomere length (RTL) in the Agricultural Health Study (AHS), a prospective cohort study of pesticide applicators in Iowa and North Carolina. RTL was measured by qPCR using leukocyte DNA from 568 cancer-free male AHS participants aged 31-94 years with blood samples collected between 2006 and 2008. Self-reported information, including pesticide use, was collected at three time points: enrollment (1993-1997) and two follow-up questionnaires (1998-2003, 2005-2008). For each pesticide, we evaluated cumulative use (using data from all three questionnaires), and more recent use (using data from the last follow-up questionnaire). Multivariable linear regression was used to examine the associations between pesticide use (ever, lifetime days, intensity-weighted lifetime days (lifetime days*intensity score)) and RTL, adjusting for age at blood draw and use of other pesticides. Of the 57 pesticides evaluated with cumulative use, increasing lifetime days of 2,4-D (p-trend=0.001), diazinon (p-trend=0.002), and butylate (p-trend=0.01) were significantly associated with shorter RTL, while increasing lifetime days of alachlor was significantly associated with longer RTL (p-trend=0.03). Only the association with 2,4-D was significant after adjustment for multiple comparisons. Of the 40 pesticides evaluated for recent use, malathion was associated with shorter RTL (p=0.03), and alachlor with longer RTL (p=0.03). Our findings suggest that leukocyte TL may be impacted by cumulative use and recent use of certain pesticides.
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Affiliation(s)
- Gabriella Andreotti
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
- * E-mail:
| | - Jane A. Hoppin
- Department of Biological Sciences, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Lifang Hou
- Department of Preventive Medicine and Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Stella Koutros
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
| | - Shahinaz M. Gadalla
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
| | - Sharon A. Savage
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
| | - Jay Lubin
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
| | - Aaron Blair
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
| | - Mirjam Hoxha
- Department of Clinical Sciences and Community Health, Center of Molecular and Genetic Epidemiology, University of Milan, Milan, Italy
| | - Andrea Baccarelli
- Laboratory of Environmental Epigenetics, Exposure Epidemiology and Risk Program, Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Dale Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH/DHHS, Research Triangle Park, North Carolina, United States of America
| | - Michael Alavanja
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
| | - Laura E. Beane Freeman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, United States of America
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45
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Glade MJ, Meguid MM. A glance at … telomeres, oxidative stress, antioxidants, and biological aging. Nutrition 2015; 31:1447-51. [PMID: 26429668 DOI: 10.1016/j.nut.2015.05.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 05/23/2015] [Indexed: 12/14/2022]
Affiliation(s)
| | - Michael M Meguid
- Department of Surgery, University Hospital, Upstate Medical University, Syracuse, New York, USA
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46
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Zeljezic D, Bjelis M, Mladinic M. Evaluation of the mechanism of nucleoplasmic bridge formation due to premature telomere shortening in agricultural workers exposed to mixed pesticides: indication for further studies. CHEMOSPHERE 2015; 120:45-51. [PMID: 24974313 DOI: 10.1016/j.chemosphere.2014.05.085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/27/2014] [Accepted: 05/31/2014] [Indexed: 06/03/2023]
Abstract
Agricultural workers are often exposed to high levels of pesticides over prolonged periods of time. We attempted to determine whether exposure to multiple pesticides shortens relative telomere length (RTL) and causes nucleoplasmic bridge (NPB) formation via the mechanism of telomere-end fusion in the lymphocytes of agricultural workers. For measuring RTL, we used quantitative fluorescent in situ hybridization, while NPB frequency was measured as part of the cytome assay. Multivariate analysis of variances taking into account confounding factors (age, gender, years of exposure, smoking, and alcohol intake) did not show a decrease, but rather an increase of RTL in agricultural workers compared to control individuals. In the exposed population, NPB frequency was significantly higher compared to controls (6 times, p<0.05). Multiple regression between NPB, RTL, and confounding factors was not significant. Using Spearman correlation, we did not find proof for our initial hypothesis. Our hypothesis that telomere shortening is a mechanism of NPB origin was not proven, indicating that telomere-end fusion is not a mechanism of NPB formation under our experimental conditions for agricultural workers.
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Affiliation(s)
- Davor Zeljezic
- Division for Mutagenesis, Institute for Medical Research and Occupational Health, Ksaverska 2, 10000 Zagreb, Croatia
| | - Marija Bjelis
- Economic High School Velika Gorica, Ulica Kralja Stjepana Tomaševića 21, 10410 Velika Gorica, Croatia
| | - Marin Mladinic
- Division for Mutagenesis, Institute for Medical Research and Occupational Health, Ksaverska 2, 10000 Zagreb, Croatia.
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47
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Blair A, Hines C, Thomas K, Alavanja M, Beane Freeman L, Hoppin J, Kamel F, Lynch C, Lubin J, Silverman D, Whelan E, Zahm SH, Sandler DP. Investing in prospective cohorts for etiologic study of occupational exposures. Am J Ind Med 2015; 58:113-22. [PMID: 25603935 PMCID: PMC4516175 DOI: 10.1002/ajim.22403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2014] [Indexed: 12/13/2022]
Abstract
Prospective cohorts have played a major role in understanding the contribution of diet, physical activity, medical conditions, and genes to the development of many diseases, but have not been widely used for occupational exposures. Studies in agriculture are an exception. We draw upon our experience using this design to study agricultural workers to identify conditions that might foster use of prospective cohorts to study other occupational settings. Prospective cohort studies are perceived by many as the strongest epidemiologic design. It allows updating of information on exposure and other factors, collection of biologic samples before disease diagnosis for biomarker studies, assessment of effect modification by genes, lifestyle, and other occupational exposures, and evaluation of a wide range of health outcomes. Increased use of prospective cohorts would be beneficial in identifying hazardous exposures in the workplace. Occupational epidemiologists should seek opportunities to initiate prospective cohorts to investigate high priority, occupational exposures.
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Affiliation(s)
- A. Blair
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - C.J. Hines
- National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - K.W. Thomas
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, North Carolina
| | - M.C.R. Alavanja
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - L.E. Beane Freeman
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - J.A. Hoppin
- Department of Biological Sciences, North Carolina State University, Raleigh, North Carolina
| | - F. Kamel
- Epidemiology Branch, National Institute for Environmental Health Sciences, North Carolina
| | - C.F. Lynch
- College of Public Health, University of Iowa, Iowa City, Iowa
| | - J.H. Lubin
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - D.T. Silverman
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - E. Whelan
- National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - S. H. Zahm
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - D. P. Sandler
- Epidemiology Branch, National Institute for Environmental Health Sciences, North Carolina
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48
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Lerro CC, Koutros S, Andreotti G, Hines CJ, Blair A, Lubin J, Ma X, Zhang Y, Beane Freeman LE. Use of acetochlor and cancer incidence in the Agricultural Health Study. Int J Cancer 2015; 137:1167-75. [PMID: 25559664 DOI: 10.1002/ijc.29416] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 12/17/2014] [Indexed: 01/31/2023]
Abstract
Since its registration in 1994 acetochlor has become a commonly used herbicide in the US, yet no epidemiologic study has evaluated its carcinogenicity in humans. We evaluated the use of acetochlor and cancer incidence among licensed pesticide applicators in the Agricultural Health Study. In telephone interviews administered during 1999-2005, participants provided information on acetochlor use, use of other pesticides and additional potential confounders. We used Poisson regression to estimate relative risks (RR) and 95% confidence intervals (95% CI) for cancers that occurred from the time of interview through 2011 in Iowa and 2010 in North Carolina. Among 33,484 men, there were 4,026 applicators who used acetochlor and 3,234 incident cancers, with 304 acetochlor-exposed cases. Increased risk of lung cancer was observed among acetochlor users (RR = 1.74; 95% CI: 1.07-2.84) compared to nonusers, and among individuals who reported using acetochlor/atrazine product mixtures (RR = 2.33; 95% CI: 1.30-4.17), compared to nonusers of acetochlor. Colorectal cancer risk was significantly elevated among the highest category of acetochlor users (RR = 1.75; 95% CI: 1.08-2.83) compared to never users. Additionally, borderline significantly increased risk of melanoma (RR = 1.61; 95% CI: 0.98-2.66) and pancreatic cancer (RR = 2.36; 95% CI: 0.98-5.65) were observed among acetochlor users. The associations between acetochlor use and lung cancer, colorectal cancer, melanoma and pancreatic cancer are suggestive, however the lack of exposure-response trends, small number of exposed cases and relatively short time between acetochlor use and cancer development prohibit definitive conclusions.
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Affiliation(s)
- Catherine C Lerro
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD.,Environmental Health Sciences Department, Yale University School of Public Health, New Haven, CT
| | - Stella Koutros
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Gabriella Andreotti
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Cynthia J Hines
- Division of Surveillance, Hazard Evaluations and Field Studies, National Institute for Occupational Safety and Heath, Cincinnati, OH
| | - Aaron Blair
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Jay Lubin
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Xiaomei Ma
- Chronic Disease Epidemiology Department, Yale University School of Public Health, New Haven, CT
| | - Yawei Zhang
- Environmental Health Sciences Department, Yale University School of Public Health, New Haven, CT
| | - Laura E Beane Freeman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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49
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Hofmann JN, Beane Freeman LE, Lynch CF, Andreotti G, Thomas KW, Sandler DP, Savage SA, Alavanja MC. The Biomarkers of Exposure and Effect in Agriculture (BEEA) Study: Rationale, Design, Methods, and Participant Characteristics. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:1338-47. [PMID: 26555155 PMCID: PMC4674328 DOI: 10.1080/15287394.2015.1091414] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Agricultural exposures including pesticides, endotoxin, and allergens have been associated with risk of various cancers and other chronic diseases, although the biological mechanisms underlying these associations are generally unclear. To facilitate future molecular epidemiologic investigations, in 2010 the study of Biomarkers of Exposure and Effect in Agriculture (BEEA) was initiated within the Agricultural Health Study, a large prospective cohort in Iowa and North Carolina. Here the design and methodology of BEEA are described and preliminary frequencies for participant characteristics and current agricultural exposures are reported. At least 1,600 male farmers over 50 years of age will be enrolled in the BEEA study. During a home visit, participants are asked to complete a detailed interview about recent agricultural exposures and provide samples of blood, urine, and (since 2013) house dust. As of mid-September 2014, in total, 1,233 participants have enrolled. Most of these participants (83%) were still farming at the time of interview. Among those still farming, the most commonly reported crops were corn (81%) and soybeans (74%), and the most frequently noted animals were beef cattle (35%) and hogs (13%). There were 861 (70%) participants who reported occupational pesticide use in the 12 months prior to interview; among these participants, the most frequently noted herbicides were glyphosate (83%) and 2,4-D (72%), and most commonly reported insecticides were malathion (21%), cyfluthrin (13%), and permethrin (12%). Molecular epidemiologic investigations within BEEA have the potential to yield important new insights into the biological mechanisms through which these or other agricultural exposures influence disease risk.
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Affiliation(s)
- Jonathan N. Hofmann
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | | | | | - Gabriella Andreotti
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Kent W. Thomas
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC
| | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Sharon A. Savage
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Michael C. Alavanja
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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50
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Abstract
The occurrence of pulmonary fibrosis in numerous individuals from the same family suggests a genetic cause for the disease. During the last 10 years, mutations involving proteins from the telomerase complex and from the surfactant system have been identified in association with pulmonary fibrosis. Mutations of TERT, the coding gene for the telomerase reverse transcriptase, are the most frequently identified mutations and are present in 15% of cases of familial pulmonary fibrosis. Other mutations (TERC, surfactant proteins genes) are only rarely evidenced in adults. Patients with mutations involving the telomerase complex may present with pulmonary fibrosis, hematologic, cutaneous or liver diseases. Other genetic variations associated with pulmonary fibrosis such as a polymorphism in the promoter of MUC5B or a polymorphism in TERT have been recently described, and could be considered to be part of a polygenic transmission. Evidence for mutations associated with the development of pulmonary fibrosis raises numerous clinical questions from establishing a diagnosis, providing counselling to deciding on therapy, and requires specific studies. From a pathophysiological point of view, the function of the genes highlights the central role of alveolar epithelium and aging in fibrogenesis.
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