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Xie PP, Zong ZQ, Qiao JC, Li ZY, Hu CY. Exposure to pesticides and risk of colorectal cancer: A systematic review and meta-analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123530. [PMID: 38341063 DOI: 10.1016/j.envpol.2024.123530] [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: 07/25/2023] [Revised: 02/03/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Colorectal cancer (CRC) is a widespread malignancy worldwide, and its relationship with pesticide exposure remains inconclusive. This study aims to elucidate the relationship between pesticide exposure and the risk of colon, rectal, or CRC, focusing on specific pesticide groups. We conducted an extensive literature search for peer-reviewed studies published up to March 31, 2023. Summary risk ratios (RR) and their corresponding 95% confidence intervals (CI) were calculated using stratified random-effects meta-analyses, taking into account different types of exposure and outcomes, and various exposed populations and pesticide subgroups. This approach aimed to address the substantial heterogeneity observed across the literature. We also assessed heterogeneity and potential small-study effects to ensure the robustness of our findings. From the 50 studies included in this review, 33 contributed to the meta-analysis. Our results indicate a significant association between herbicide exposure and colon cancer in both lifetime-days (LDs) (RR = 1.20; 95% CI = 1.01-1.42) and intensity-weighted lifetime-days (IWLDs) (RR = 1.29, 95% CI = 1.12-1.49) exposure. Similarly, insecticide exposure was associated with an increased risk of colon cancer in IWLDs (RR = 1.32; 95% CI = 1.02-1.70) exposure, and rectal cancer in any versus never exposure (RR = 1.21; 95% CI = 1.07-1.36), IDs (RR = 1.86; 95% CI = 1.30-2.67) and IWLDs (RR = 1.70; 95% CI = 1.03-2.83) exposure. While these findings suggest significant associations of herbicide and insecticide exposure with colon and rectal cancer, respectively, further research is needed to explore the impact of other pesticide groups and deepen our understanding of pesticide exposure. These results have important implications for policymakers and regulators, underscoring the need for stricter supervision and regulation of pesticide use to mitigate CRC risk.
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Affiliation(s)
- Pin-Peng Xie
- Department of Clinical Medicine, The Second School of Clinical Medicine, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China
| | - Zhi-Qiang Zong
- Department of Clinical Medicine, The Second School of Clinical Medicine, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China
| | - Jian-Chao Qiao
- Department of Clinical Medicine, The Second School of Clinical Medicine, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China
| | - Zhuo-Yan Li
- Department of Clinical Medicine, The Second School of Clinical Medicine, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China
| | - Cheng-Yang Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China; Department of Humanistic Medicine, School of Humanistic Medicine, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China.
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Oltramare C, Mediouni Z, Shoman Y, Hopf NB, Graczyk H, Berthet A. Determinants of Pesticide Exposure in Occupational Studies: A Meta-Analysis. TOXICS 2023; 11:623. [PMID: 37505588 PMCID: PMC10386710 DOI: 10.3390/toxics11070623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/29/2023]
Abstract
Few epidemiological studies use exposure determinants specifically tailored to assess pesticide or plant protection product (PPP) exposures when assessing presumed association between occupational exposure and health outcomes among agricultural workers. This lack of exposure specificity could lead to results that fail to detect an association. It could be related to the lack of consensus on exposure assessment methods and the choice of exposure determinants. We conducted a meta-analysis following the PRISMA checklist to identify PPP exposure determinants used in occupational studies and identified exposure determinants that best characterized agricultural exposures to PPPs. Out of 1436 studies identified, 71 were included. The exposure determinants identified were active ingredients, chemical classes, types of PPP, crops, tasks, frequencies, duration, lifetime exposure days, and intensity-weighted exposure days. Only six over 17 associations between exposure determinants and health outcomes were found with moderate quality of evidence. Overall, epidemiological studies had difficulty defining relevant determinants to characterize PPP exposures for agricultural workers. We recommend that a standardized list of determinants for PPP exposures in occupational exposure studies should include information on formulations, intensity, duration, and frequency of PPP exposure. Harmonized data collection on exposure and health outcomes are required as well as standard units for each exposure determinant.
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Affiliation(s)
- Christelle Oltramare
- Center for Primary Care and Public Health (Unisanté), Department of Occupational and Environmental Health (DSTE), University of Lausanne, 1066 Epalinges-Lausanne, Switzerland
| | - Zakia Mediouni
- Center for Primary Care and Public Health (Unisanté), Department of Occupational and Environmental Health (DSTE), University of Lausanne, 1066 Epalinges-Lausanne, Switzerland
| | - Yara Shoman
- Center for Primary Care and Public Health (Unisanté), Department of Occupational and Environmental Health (DSTE), University of Lausanne, 1066 Epalinges-Lausanne, Switzerland
| | - Nancy B Hopf
- Center for Primary Care and Public Health (Unisanté), Department of Occupational and Environmental Health (DSTE), University of Lausanne, 1066 Epalinges-Lausanne, Switzerland
| | - Halshka Graczyk
- International Labour Organization (ILO), 1211 Geneva, Switzerland
| | - Aurélie Berthet
- Center for Primary Care and Public Health (Unisanté), Department of Occupational and Environmental Health (DSTE), University of Lausanne, 1066 Epalinges-Lausanne, Switzerland
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Chatterjee K, Alka, Kumar S, Sharma RK, Kumari P. Effective Removal of Nitrogenous Pesticides from Water Using Functionalized Calix[4]arene‐Decorated Magnetite Nanoparticles. ChemistrySelect 2023. [DOI: 10.1002/slct.202203426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Koushiki Chatterjee
- Bioorganic material research laboratory Department of Chemistry Deshbandhu College University of Delhi New Delhi 110019 India
- Amity Institute of Applied Sciences Amity University 201313 Noida Uttar Pradesh India
| | - Alka
- Bioorganic material research laboratory Department of Chemistry Deshbandhu College University of Delhi New Delhi 110019 India
| | - Sanjay Kumar
- Bioorganic material research laboratory Department of Chemistry Deshbandhu College University of Delhi New Delhi 110019 India
- Department of Chemistry University of Delhi New Delhi 110007 India
| | | | - Pratibha Kumari
- Bioorganic material research laboratory Department of Chemistry Deshbandhu College University of Delhi New Delhi 110019 India
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Hasnaki R, Ziaee M, Mahdavi V. Pesticide residues in corn and soil of corn fields of Khuzestan, Iran, and potential health risk assessment. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.104972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Parks CG, Costenbader KH, Long S, Hofmann JN, Beane FLE, Sandler DP. Pesticide use and risk of systemic autoimmune diseases in the Agricultural Health Study. ENVIRONMENTAL RESEARCH 2022; 209:112862. [PMID: 35123967 PMCID: PMC9205340 DOI: 10.1016/j.envres.2022.112862] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/23/2021] [Accepted: 01/27/2022] [Indexed: 06/03/2023]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) risk has been associated with pesticide use, but evidence on specific pesticides or other agricultural exposures is lacking. We investigated history of pesticide use and risk of SLE and a related disease, Sjögren's syndrome (SS), in the Agricultural Health Study. METHODS The study sample (N = 54,419, 52% male, enrolled in 1993-1997) included licensed pesticide applicators from North Carolina and Iowa and spouses who completed any of the follow-up questionnaires (1999-2003, 2005-2010, 2013-2015). Self-reported cases were confirmed by medical records or medication use (total: 107 incident SLE or SS, 79% female). We examined ever use of 31 pesticides and farm tasks and exposures reported at enrollment in association with SLE/SS, using Cox regression to estimate hazard ratios (HR) and 95% confidence intervals (CI), with age as the timescale and adjusting for gender, state, and correlated pesticides. RESULTS In older participants (>62 years), SLE/SS was associated with ever use of the herbicide metribuzin (HR 5.33; 95%CI 2.19, 12.96) and applying pesticides 20+ days per year (2.97; 1.20, 7.33). Inverse associations were seen for petroleum oil/distillates (0.39; 0.18, 0.87) and the insecticide carbaryl (0.56; 0.36, 0.87). SLE/SS was inversely associated with having a childhood farm residence (0.59; 0.39, 0.91), but was not associated with other farm tasks/exposures (except welding, HR 2.65; 95%CI 0.96, 7.35). CONCLUSIONS These findings suggest that some agricultural pesticides may be associated with higher or lower risk of SLE/SS. However, the overall risk associated with farming appears complex, involving other factors and childhood exposures.
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Affiliation(s)
- C G Parks
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA.
| | - K H Costenbader
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - S Long
- Westat, Rockville, MD, USA
| | - J N Hofmann
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Freeman L E Beane
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - D P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
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Matich EK, Laryea JA, Seely KA, Stahr S, Su LJ, Hsu PC. Association between pesticide exposure and colorectal cancer risk and incidence: A systematic review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 219:112327. [PMID: 34029839 PMCID: PMC8694176 DOI: 10.1016/j.ecoenv.2021.112327] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 05/07/2021] [Accepted: 05/08/2021] [Indexed: 05/14/2023]
Abstract
BACKGROUND Studies investigating the association between pesticide exposure and colorectal cancer (CRC) risk have been inconclusive. OBJECTIVES Investigate the association between pesticide exposure and CRC risk through a systematic literature review. METHODS CRC has the fourth-highest rate of cancer-caused death in the US after lung cancer, breast cancer in women, and prostate cancer in men. Here we have conducted a systematic literature search on studies examining the association between any pesticide exposure and CRC risk using PubMed, MEDLINE via EBSCO host, and Embase according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist. RESULTS Following the review, 139 articles were included for qualitative evaluation. Study participants were farmers, pesticide applicators, pesticide manufacturers, spouses of pesticide applicators, farm residents, Korean veterans of the Vietnam War, rural communities, and those who consumed food with pesticide residues. The studies' results were split between those with significant positive (39 significant results) and inverse (41 significant results) associations when comparing pesticide exposure and CRC risk. DISCUSSION From our literature review, we have identified a similar number of significant positive and inverse associations of pesticide exposure with CRC risk and therefore cannot conclude whether pesticide exposure has a positive or inverse association with CRC risk overall. However, certain pesticides such as terbufos, dicamba, trifluralin, S-ethyl dipropylthiocarbamate (EPTC), imazethapyr, chlorpyrifos, carbaryl, pendimethalin, and acetochlor are of great concern not only for their associated elevated risk of CRC, but also for the current legal usage in the United States (US). Aldicarb and dieldrin are of moderate concern for the positive associations with CRC risk, and also for the illegal usage or the detection on imported food products even though they have been banned in the US. Pesticides can linger in the soil, water, and air for weeks to years and, therefore, can lead to exposure to farmers, manufacturing workers, and those living in rural communities near these farms and factories. Approximately 60 million people in the US live in rural areas and all of the CRC mortality hotspots are within the rural communities. The CRC mortality rate is still increasing in the rural regions despite the overall decreasing of incidence and mortality of CRC elsewhere. Therefore, the results from this study on the relationship between pesticide exposure and CRC risk will help us to understand CRC health disparities.
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Affiliation(s)
- Eryn K Matich
- Department of Environmental and Occupational Health, College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Jonathan A Laryea
- Department of Surgery, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Kathryn A Seely
- Public Health Laboratory, Arkansas Department of Health, Little Rock, AR, USA
| | - Shelbie Stahr
- Department of Epidemiology, College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - L Joseph Su
- Department of Epidemiology, College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Ping-Ching Hsu
- Department of Environmental and Occupational Health, College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
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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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8
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Pluth TB, Zanini LAG, Battisti IDE. Pesticide exposure and cancer: an integrative literature review. SAÚDE EM DEBATE 2019. [DOI: 10.1590/0103-1104201912220] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
ABSTRACT We conducted an integrative literature review of published studies on pesticide and cancer exposure, focusing on farmers, rural population, pesticide applicators, and rural workers. The Medline/PubMed was used as searching database. After the retrieval, 74 articles were selected according to pre-established criteria, which design involved 39 case-controls, 32 cohorts, 2 ecological ones, and 1 cross-sectional. Among them, 64 studies showed associations between pesticides and cancer while 10 did not find any significant association. The studies found 53 different types of pesticides significantly associated with at least one type of cancer and 19 different types of cancers linked to at least one type of pesticide. Although few studies presented contradictory results, the sole fact of being a farmer or living near crops or high agricultural areas have also been used as a proxy for pesticide exposure and significantly associated with higher cancer risk. The literature well illustrates the case of prostate cancer, Non-Hodgkin lymphoma, leukemia, multiple myeloma, bladder and colon cancers. Studies are recommended to further investigate the relationship between pesticide and neoplasm of testis, breast, esophagus, kidney, thyroid, lip, head and neck, and bone.
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Synthesis of molecular imprinted polymer nanoparticles followed by application of response surface methodology for optimization of metribuzin extraction from urine samples. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0546-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Kigen G, Busakhala N, Kamuren Z, Rono H, Kimalat W, Njiru E. Factors associated with the high prevalence of oesophageal cancer in Western Kenya: a review. Infect Agent Cancer 2017; 12:59. [PMID: 29142587 PMCID: PMC5670732 DOI: 10.1186/s13027-017-0169-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 10/25/2017] [Indexed: 12/19/2022] Open
Abstract
Oesophageal carcinoma (OC) is highly prevalent in Western Kenya especially among the members of the Kalenjin community who reside in the Northern and Southern areas of the Rift Valley. Previous authors have suggested potential association of environmental and genetic risk factors with this high prevalence. The environmental factors that have been suggested include contamination of food by mycotoxins and/or pesticides, consumption of traditional alcohol (locally referred to “Busaa” and “Chan’gaa”), use of fermented milk (“Mursik”), poor diet, tobacco use and genetic predisposition. The aim of this paper is to critically examine the potential contribution of each of the factors that have been postulated to be associated with the high prevalence of the disease in order to establish the most likely cause. We have done this by analyzing the trends, characteristics and behaviours that are specifically unique in the region, and corroborated this with the available literature. From our findings, the most plausible cause of the high incidence of OC among the Kalenjin community is mycotoxins, particularly fumonisins from the food chain resulting from poor handling of cereals; particularly maize combined with traditional alcohol laced with the toxins interacting synergistically with other high-risk factors such as dietary deficiencies associated alcoholism and viral infections, especially HPV. Urgent mitigating strategies should be developed in order to minimize the levels of mycotoxins in the food chain.
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Affiliation(s)
- Gabriel Kigen
- Department of Pharmacology & Toxicology; Department of Hematology & Oncology, Moi University School of Medicine, P.O. Box 4606-30100, Eldoret, Kenya
| | - Naftali Busakhala
- Department of Pharmacology & Toxicology; Department of Hematology & Oncology, Moi University School of Medicine, P. O. Box 4606-30100, Eldoret, Kenya
| | - Zipporah Kamuren
- Department of Pharmacology & Toxicology, Moi University School of Medicine, P.O. Box 4606-30100, Eldoret, Kenya
| | - Hillary Rono
- Kitale County Hospital; London School of Tropical Medicine & Hygiene, P.O. Box 98-30200, Kitale, Kenya
| | - Wilfred Kimalat
- Retired Permanent Secretary, Ministry of Education, Science & Technology, Provisional Administration & Internal Security, Office of the President, P. O. Box 28467-00200, Nairobi, Kenya
| | - Evangeline Njiru
- Department of Internal Medicine; Department of Hematology and Oncology, Moi University School of Medicine, P.O. Box 4606, Eldoret, 30100 Kenya
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Lewis-Mikhael AM, Bueno-Cavanillas A, Ofir Giron T, Olmedo-Requena R, Delgado-Rodríguez M, Jiménez-Moleón JJ. Occupational exposure to pesticides and prostate cancer: a systematic review and meta-analysis. Occup Environ Med 2015; 73:134-44. [PMID: 26644457 DOI: 10.1136/oemed-2014-102692] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 04/13/2015] [Indexed: 12/31/2022]
Abstract
Epidemiological studies on exposure to pesticides and risk of prostate cancer (PC) provide inconsistent results. We aimed to explore various potential sources of heterogeneity not previously assessed and to derive updated risk estimates from homogenous studies. We searched PubMed, Web of Science and Scopus databases for case-control and cohort studies published from 1985 to April 2014. We assessed the quality of the articles using the Newcastle-Ottawa Scale. Pooled estimates were calculated using random-effects models. Heterogeneity was explored using subset analyses and metaregression. Fifty-two studies were included in the review and 25 in the meta-analysis. No association was found between low exposure to pesticides and PC, but association was significant for high exposure, pooled OR 1.33 (1.02 to 1.63), I(2)=44.8%, p=0.024. Heterogeneity was explained by a number of variables including method used to assess exposure. Pooled OR was weak and non-significant for studies measuring serum pesticide level, 1.12 (0.74 to 1.50), I(2)=0.00%, p=0.966. For studies applying self-reporting of exposure, pooled estimate was 1.34 (0.91 to 1.77), I(2)=0.00%, p=0.493, while a high significant association was detected for grouped exposure assessment, 2.24 (1.36 to 3.11), I(2)=0.00%, p=0.955. In spite of a weak significant association detected when pooling ORs for high occupational exposure to pesticides, the magnitude of the association was related to the method of exposure assessment used by the original studies. A family history-pesticide exposure interaction was also observed for a number of pesticides.
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Affiliation(s)
- Anne-Mary Lewis-Mikhael
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain Department of Occupational Health and Industrial Medicine, High Institute of Public Health, Alexandria University
| | - Aurora Bueno-Cavanillas
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain CIBER Epidemiología y Salud Pública (CIBERESP), Spain Instituto de Investigación Biosanitaria de Granada (ibs GRANADA), Servicio Andaluz de Salud/Universidad de Granada
| | - Talia Ofir Giron
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
| | - Rocío Olmedo-Requena
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain CIBER Epidemiología y Salud Pública (CIBERESP), Spain Instituto de Investigación Biosanitaria de Granada (ibs GRANADA), Servicio Andaluz de Salud/Universidad de Granada
| | - Miguel Delgado-Rodríguez
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain Department of Preventive Medicine and Health Sciences, University of Jaen
| | - José Juan Jiménez-Moleón
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain CIBER Epidemiología y Salud Pública (CIBERESP), Spain Instituto de Investigación Biosanitaria de Granada (ibs GRANADA), Servicio Andaluz de Salud/Universidad de Granada
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12
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Sensitive voltammetric method for determination of herbicide metribuzin using silver solid amalgam electrode. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1555-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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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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Schinasi L, Leon ME. Non-Hodgkin lymphoma and occupational exposure to agricultural pesticide chemical groups and active ingredients: a systematic review and meta-analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:4449-527. [PMID: 24762670 PMCID: PMC4025008 DOI: 10.3390/ijerph110404449] [Citation(s) in RCA: 148] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 03/31/2014] [Accepted: 04/01/2014] [Indexed: 12/22/2022]
Abstract
This paper describes results from a systematic review and a series of meta-analyses of nearly three decades worth of epidemiologic research on the relationship between non-Hodgkin lymphoma (NHL) and occupational exposure to agricultural pesticide active ingredients and chemical groups. Estimates of associations of NHL with 21 pesticide chemical groups and 80 active ingredients were extracted from 44 papers, all of which reported results from analyses of studies conducted in high-income countries. Random effects meta-analyses showed that phenoxy herbicides, carbamate insecticides, organophosphorus insecticides and the active ingredient lindane, an organochlorine insecticide, were positively associated with NHL. In a handful of papers, associations between pesticides and NHL subtypes were reported; B cell lymphoma was positively associated with phenoxy herbicides and the organophosphorus herbicide glyphosate. Diffuse large B-cell lymphoma was positively associated with phenoxy herbicide exposure. Despite compelling evidence that NHL is associated with certain chemicals, this review indicates the need for investigations of a larger variety of pesticides in more geographic areas, especially in low- and middle-income countries, which, despite producing a large portion of the world's agriculture, were missing in the literature that were reviewed.
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Affiliation(s)
- Leah Schinasi
- Section of Environment and Radiation, International Agency for Research on Cancer 150, Cours Albert Thomas, 69372 Lyon Cedex 08, France.
| | - Maria E Leon
- Section of Environment and Radiation, International Agency for Research on Cancer 150, Cours Albert Thomas, 69372 Lyon Cedex 08, France.
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Karami S, Andreotti G, Koutros S, Barry KH, Moore LE, Han S, Hoppin JA, Sandler DP, Lubin JH, Burdette LA, Yuenger J, Yeager M, Freeman LEB, Blair A, Alavanja MCR. Pesticide exposure and inherited variants in vitamin d pathway genes in relation to prostate cancer. Cancer Epidemiol Biomarkers Prev 2013; 22:1557-66. [PMID: 23833127 PMCID: PMC3773544 DOI: 10.1158/1055-9965.epi-12-1454] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Vitamin D and its metabolites are believed to impede carcinogenesis by stimulating cell differentiation, inhibiting cell proliferation, and inducing apoptosis. Certain pesticides have been shown to deregulate vitamin D's anticarcinogenic properties. We hypothesize that certain pesticides may be linked to prostate cancer via an interaction with vitamin D genetic variants. METHODS We evaluated interactions between 41 pesticides and 152 single-nucleotide polymorphisms (SNP) in nine vitamin D pathway genes among 776 prostate cancer cases and 1,444 male controls in a nested case-control study of Caucasian pesticide applicators within the Agricultural Health Study. We assessed Pinteraction values using likelihood ratio tests from unconditional logistic regression and a false discovery rate (FDR) to account for multiple comparisons. RESULTS Five significant interactions (P < 0.01) displayed a monotonic increase in prostate cancer risk with individual pesticide use in one genotype and no association in the other. These interactions involved parathion and terbufos use and three vitamin D genes (VDR, RXRB, and GC). The exposure-response pattern among participants with increasing parathion use with the homozygous CC genotype for GC rs7041 compared with unexposed participants was noteworthy [low vs. no exposure: OR, 2.58, 95% confidence interval (CI), 1.07-6.25; high vs. no exposure: OR, 3.09, 95% CI, 1.10-8.68; Pinteraction = 3.8 × 10(-3)]. CONCLUSIONS In this study, genetic variations in vitamin D pathway genes, particularly GC rs7041, an SNP previously linked to lower circulating vitamin D levels, modified pesticide associations with prostate cancer risk. IMPACT Because our study is the first to examine this relationship, additional studies are needed to rule out chance findings.
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Affiliation(s)
- Sara Karami
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD 20852, USA.
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Quandt SA, Kucera KL, Haynes C, Klein BG, Langley R, Agnew M, Levin JL, Howard T, Nussbaum MA. Occupational health outcomes for workers in the agriculture, forestry and fishing sector: implications for immigrant workers in the southeastern US. Am J Ind Med 2013; 56:940-59. [PMID: 23450720 DOI: 10.1002/ajim.22170] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2013] [Indexed: 11/05/2022]
Abstract
BACKGROUND Workers in the Agriculture, Forestry, and Fisheries (AgFF) sector experience exposures directly related to the work itself, as well as the physical environment in which the work occurs. Health outcomes vary from immediate to delayed, and from acute to chronic. METHODS We reviewed existing literature on the health outcomes of work in the AgFF sector and identified areas where further research is needed to understand the impact of these exposures on immigrant Latino workers in the southeastern US. RESULTS Outcomes related to specific body systems (e.g., musculoskeletal, respiratory) as well as particular exposure sources (e.g., pesticides, noise) were reviewed. The most extensive evidence exists for agriculture, with a particular focus on chemical exposures. Little research in the southeastern US has examined health outcomes of exposures of immigrant workers in forestry or fisheries. CONCLUSION As the AgFF labor force includes a growing number of Latino immigrants, more research is needed to characterize a broad range of exposures and health outcomes experienced by this population, particularly in forestry and fisheries.
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Affiliation(s)
| | - Kristen L. Kucera
- Division of Occupational and Environmental Medicine; Department of Community and Family Medicine; Duke University; Durham; North Carolina
| | - Courtney Haynes
- Department of Industrial and Systems Engineering; School of Biomedical Engineering and Sciences; Virginia Tech; Blacksburg, Virginia
| | - Bradley G. Klein
- Department of Biomedical Sciences and Pathobiology; Virginia-Maryland Regional College of Veterinary Medicine; Virginia Tech; Blacksburg, Virginia
| | - Ricky Langley
- Division of Public Health; North Carolina Department of Health and Human Services; Raleigh; North Carolina
| | - Michael Agnew
- Department of Industrial and Systems Engineering; School of Biomedical Engineering and Sciences; Virginia Tech; Blacksburg, Virginia
| | - Jeffrey L. Levin
- Department of Occupational Health Sciences; University of Texas Health Science Center at Tyler; Tyler; Texas
| | | | - Maury A. Nussbaum
- Department of Industrial and Systems Engineering; School of Biomedical Engineering and Sciences; Virginia Tech; Blacksburg, Virginia
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Abstract
Leukemia is a complex disease, which only became better understood during the last decades following the development of new laboratory techniques and diagnostic methods. Despite our improved understanding of the physiology of the disease, little is yet known about the causes of leukemia. A variety of potential risk factors have been suggested so far, including personal habits and lifestyle, and a wide range of occupational or environmental exposures. A causal association with leukemia has only been documented to date for ionizing radiation, benzene and treatment with cytostatic drugs, but there is an ongoing scientific debate on the possible association of leukemia with a number of other work-related hazards. In this article, we have reviewed scientific studies, published over the past 5 years, which investigated potential associations between leukemia and exposure to occupational risk factors. The systematic literature review took place via electronic databases, using specific search criteria, and independent reviewers have further filtered the search results to identify the number of articles, presented in our paper. A large number of studies included in the review referred to the effects of ionizing radiation, where new data suggest that the effects of exposure to small doses of ionizing radiation should probably be reevaluated. Some other works appear to substantiate a potential association of the disease with certain pesticides. Further research is also suggested regarding the role of infectious agents or exposure to certain chemicals like formaldehyde or butadiene in the pathogenesis of leukemia.
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Alavanja MCR, Ross MK, Bonner MR. Increased cancer burden among pesticide applicators and others due to pesticide exposure. CA Cancer J Clin 2013; 63:120-42. [PMID: 23322675 DOI: 10.3322/caac.21170] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A growing number of well-designed epidemiological and molecular studies provide substantial evidence that the pesticides used in agricultural, commercial, and home and garden applications are associated with excess cancer risk. This risk is associated both with those applying the pesticide and, under some conditions, those who are simply bystanders to the application. In this article, the epidemiological, molecular biology, and toxicological evidence emerging from recent literature assessing the link between specific pesticides and several cancers including prostate cancer, non-Hodgkin lymphoma, leukemia, multiple myeloma, and breast cancer are integrated. Although the review is not exhaustive in its scope or depth, the literature does strongly suggest that the public health problem is real. If we are to avoid the introduction of harmful chemicals into the environment in the future, the integrated efforts of molecular biology, pesticide toxicology, and epidemiology are needed to help identify the human carcinogens and thereby improve our understanding of human carcinogenicity and reduce cancer risk.
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Affiliation(s)
- Michael C R Alavanja
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, North Bethesda, MD 20892, USA.
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Alavanja MCR, Bonner MR. Occupational pesticide exposures and cancer risk: a review. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2012; 15:238-63. [PMID: 22571220 PMCID: PMC6276799 DOI: 10.1080/10937404.2012.632358] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A review of the epidemiological literature linking pesticides to cancers in occupational studies worldwide was conducted, with particular focus on those articles published after the release of IARC Monograph 53 (1991): Occupational Exposures in Insecticide Applications and Some Pesticides. Important new data are now available. Chemicals in every major functional class of pesticides including insecticides, herbicide, fungicides, and fumigants have been observed to have significant associations with an array of cancer sites. Moreover, associations were observed with specific chemicals in many chemical classes of pesticides such as chlorinated, organophosphate, and carbamate insecticides and phenoxy acid and triazine herbicides. However, not every chemical in these classes was found to be carcinogenic in humans. Twenty-one pesticides identified subsequent to the last IARC review showed significant exposure-response associations in studies of specific cancers while controlling for major potential confounders. This list is not an exhaustive review and many of these observations need to be evaluated in other epidemiological studies and in conjunction with data from toxicology and cancer biology. Nonetheless, it is reasonable and timely for the scientific community to provide a multidisciplinary expert review and evaluation of these pesticides and their potential to produce cancer in occupational settings.
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Affiliation(s)
- Michael C R Alavanja
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, North Bethesda, Maryland 20892, USA.
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Alexander DD, Weed DL, Mink PJ, Mitchell ME. A weight-of-evidence review of colorectal cancer in pesticide applicators: the agricultural health study and other epidemiologic studies. Int Arch Occup Environ Health 2011; 85:715-45. [PMID: 22159924 DOI: 10.1007/s00420-011-0723-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Accepted: 11/20/2011] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To systematically evaluate epidemiologic studies on pesticides and colon cancer and rectal cancer in agricultural pesticide applicator populations using a transparent "weight-of-evidence" (WOE) methodological approach. METHODS Twenty-nine (29) publications from the Agricultural Health Study (AHS) and 13 additional epidemiologic studies were identified that reported data for pesticide applicators and/or specific pesticide compounds and colorectal, colon, or rectal cancer. The AHS evaluated pesticide applicators as well as dose-response associations for specific pesticide compounds, whereas the large majority of non-AHS evaluated applicators but did not analyze specific compounds or dose-response trends. This WOE assessment of 153 different pesticide-outcome pairs emphasized several key evidentiary features: existence of statistically significant relative risks, magnitude of observed associations, results from the most reliable exposure assessments, and evidence of convincing dose-response relationships (i.e., those monotonically increasing, with statistically significant trend tests). RESULTS Occupation as a pesticide applicator or pesticide application as a farming-related function was not associated with increasing the risk of colon or rectal cancer. Deficits of colon or rectal cancer were observed across most studies of pesticide applicators. After applying the WOE methodology to the epidemiologic studies of specific pesticide compounds and colon or rectal cancer, a number of pesticide-outcome pairs were identified and evaluated further based on positive statistical associations. Of these, only two-aldicarb and colon cancer and imazethapyr and proximal colon cancer-appears to warrant further discussion regarding a possible causal relationship, although the epidemiologic data are limited. For the remainder, a lack of a clear dose-response trend, inconsistencies in associations between exposure metrics and comparison groups, imprecise associations, variable participation rates for analyses of specific compounds, and the reliance upon data from one study (the AHS) limit interpretation regarding risk. CONCLUSION The available epidemiologic evidence does not support a causal relationship between occupation as a pesticide applicator or specific pesticide exposures and colon or rectal cancer.
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Areas with high soil percolation by herbicides have higher incidence of low-grade non-Hodgkin lymphomas. Ann Hematol 2010; 89:941-3. [DOI: 10.1007/s00277-009-0898-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Accepted: 12/27/2009] [Indexed: 11/30/2022]
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