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Renier M, Hippert J, Louis-Bastien W, Tual S, Meryet-Figuiere M, Vigneron N, Marcotullio E, Baldi I, Lebailly P. Agricultural exposure and risk of ovarian cancer in the AGRIculture and CANcer (AGRICAN) cohort. Occup Environ Med 2024; 81:75-83. [PMID: 38199811 DOI: 10.1136/oemed-2023-109089] [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: 07/05/2023] [Accepted: 12/17/2023] [Indexed: 01/12/2024]
Abstract
BACKGROUND Ovarian cancer is rare with a poor prognosis and few established risk factors. Hormones and reproductive factors significantly impact its development, suggesting a potential link with endocrine disrupters. METHODS In the AGRICAN cohort, 59 391 female farmers completed data on lifelong agricultural exposures and reproductive life. Cox models with attained age as timescale (HR and 95% CI) were used. The role of hormonal factors as potential confounders was considered along with specific time windows for exposure (childhood, puberty and menopause). Female farmers were the reference group (for the principal analyses). RESULTS Between enrolment (2005-2007) and the end of follow-up (31 December 2017), 262 incident ovarian cancers were identified. An increased risk was observed for females involved in pigs (HR=2.12 (95% CI 1.27 to 3.52)) including during puberty (HR=1.83 (95% CI 1.13 to 2.94)), fruit-growing (HR=2.17 (95% CI 1.09 to 4.30)) and potato seed treatment (HR=2.81 (95% CI 1.29 to 6.09)). Conversely, females born on farms growing grain cereals (HR=0.64 (95% CI 0.46 to 0.90)) or pig-breeding (HR=0.78 (95% CI 0.55 to 1.12)) presented a reduced risk of ovarian cancer. Triazine herbicide exposure was not associated with ovarian cancer. The effect of agricultural exposures remained unchanged in multivariate models considering contraception, parity, puberty age, menopause age and body mass index. CONCLUSION This study is the first to assess the association between specific agricultural exposures and ovarian cancer comprehensively. Some of the positive associations observed suggest that some pesticide exposure (especially during puberty) could play a role in the development of ovarian cancer. On the other hand, agricultural exposure during early life could have a protective effect, as observed for lung cancer among farmers. Finally, we did not confirm the previous putative effect of exposure to triazine herbicides.
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Affiliation(s)
- Marine Renier
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité mixte de Recherche (UMR) 1086 ANTICIPE, Caen, France
- Centre François Baclesse Centre de Lutte Contre le Cancer, Caen, France
- Université de Caen Normandie, Caen, France
| | - Juliette Hippert
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité mixte de Recherche (UMR) 1086 ANTICIPE, Caen, France
- Centre François Baclesse Centre de Lutte Contre le Cancer, Caen, France
- Université de Caen Normandie, Caen, France
| | - Weiswald Louis-Bastien
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité mixte de Recherche (UMR) 1086 ANTICIPE, Caen, France
- Centre François Baclesse Centre de Lutte Contre le Cancer, Caen, France
- Université de Caen Normandie, Caen, France
| | - Séverine Tual
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité mixte de Recherche (UMR) 1086 ANTICIPE, Caen, France
- Centre François Baclesse Centre de Lutte Contre le Cancer, Caen, France
- Université de Caen Normandie, Caen, France
| | - Matthieu Meryet-Figuiere
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité mixte de Recherche (UMR) 1086 ANTICIPE, Caen, France
- Centre François Baclesse Centre de Lutte Contre le Cancer, Caen, France
- Université de Caen Normandie, Caen, France
| | - Nicolas Vigneron
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité mixte de Recherche (UMR) 1086 ANTICIPE, Caen, France
- Centre François Baclesse Centre de Lutte Contre le Cancer, Caen, France
- Registre général des tumeurs du Calvados, Caen, France
| | | | - Isabelle Baldi
- INSERM, Bordeaux Population Health Research Center, Team EPICENE, UMR 1219, Université de Bordeaux, Bordeaux, France
- CHU de Bordeaux, Pôle de Santé Publique, Service de Médecine du Travail et Pathologies Professionnelles, Bordeaux, France
| | - Pierre Lebailly
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité mixte de Recherche (UMR) 1086 ANTICIPE, Caen, France
- Centre François Baclesse Centre de Lutte Contre le Cancer, Caen, France
- Université de Caen Normandie, Caen, France
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de Graaf L, Talibov M, Boulanger M, Bureau M, Robelot E, Lebailly P, Baldi I. Health of greenspace workers: Morbidity and mortality data from the AGRICAN cohort. ENVIRONMENTAL RESEARCH 2022; 212:113375. [PMID: 35533714 DOI: 10.1016/j.envres.2022.113375] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Knowledge on the health of greenspace workers is scarce, even though they are exposed to many occupational hazards. The aim of this study was to analyze mortality by cause, prevalence of some non-cancer diseases, and incidence of the main cancers among greenspace workers. METHODS A sub-cohort of greenspace workers was formed within the AGRICAN cohort. Demographic information, health characteristics and self-reported diseases at enrollment were described separately in terms of frequencies (%), median and Interquartile Range (IQR) for greenspace workers, farmers, and other non-agricultural workers. Causes of death and cancer incidence were identified through linkage with cancer registries from enrollment (2005-2007) to 2015. Hazard ratio (HR) and 95% Confidence Intervals [95% CI] were estimated using Cox proportional hazard regression with age as the underlying timescale. RESULTS The sub-cohort included 6247 greenspace workers who were higher proportion men, younger and more frequently smokers than farmers and non-agricultural workers. Male and female greenspace workers reported more history of allergic diseases; and males, more history of depression. Compared to other workers male greenspace workers showed a non-significant higher mortality from ischemic cardiological diseases (HR = 1.14 [0.81-1.60]). Incidence was higher in male greenspace workers than farmers for overall cancer (HR = 1.15 [1.04-1.27]), cancer of the prostate (HR = 1.21 [1.02-1.44]), thyroid (HR = 2.84 [1.26-6.41]), testis (HR = 3.98 [1.50-10.58]) and skin melanoma (HR = 2.15 [1.33-3.47]). Non-significant increased risks were also found for sarcomas, larynx and breast. In women, risk of breast cancer was higher in greenspace workers than in farmers (HR = 1.71 [1.17-2.50]). CONCLUSIONS Whereas greenspace workers have often been included with other pesticide applicators in epidemiological studies, our analyses highlighted the differences between these two populations. They demonstrate the need to study them separately and to investigate more thoroughly the role of specific occupational exposures such as pesticides as well as the effect on women.
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Affiliation(s)
- L de Graaf
- ISPED, Université de Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France; INSERM U1219 Epicene, 146 rue Léo Saignat, 33076, Bordeaux, France.
| | - M Talibov
- INSERM U1086 Anticipe, 3 avenue Général Harris, 14000, Caen, France; Centre de Lutte contre le Cancer François Baclesse, 3 avenue Général Harris, 14000, Caen, France; Université de Caen Normandie, Esplanade de la Paix, 14000, Caen, France
| | - M Boulanger
- INSERM U1086 Anticipe, 3 avenue Général Harris, 14000, Caen, France; Centre de Lutte contre le Cancer François Baclesse, 3 avenue Général Harris, 14000, Caen, France; Université de Caen Normandie, Esplanade de la Paix, 14000, Caen, France
| | - M Bureau
- ISPED, Université de Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France; INSERM U1219 Epicene, 146 rue Léo Saignat, 33076, Bordeaux, France
| | - E Robelot
- ISPED, Université de Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France; INSERM U1219 Epicene, 146 rue Léo Saignat, 33076, Bordeaux, France
| | - P Lebailly
- INSERM U1086 Anticipe, 3 avenue Général Harris, 14000, Caen, France; Centre de Lutte contre le Cancer François Baclesse, 3 avenue Général Harris, 14000, Caen, France; Université de Caen Normandie, Esplanade de la Paix, 14000, Caen, France
| | - I Baldi
- ISPED, Université de Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France; INSERM U1219 Epicene, 146 rue Léo Saignat, 33076, Bordeaux, France; Service Santé Travail Environnement - CHU de Bordeaux, Place Amélie Raba Léon, 33076, Bordeaux, France
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De Falco M, Laforgia V. Combined Effects of Different Endocrine-Disrupting Chemicals (EDCs) on Prostate Gland. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9772. [PMID: 34574693 PMCID: PMC8471191 DOI: 10.3390/ijerph18189772] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 11/26/2022]
Abstract
Endocrine-disrupting chemicals (EDCs) belong to a heterogeneous class of environmental pollutants widely diffused in different aquatic and terrestrial habitats. This implies that humans and animals are continuously exposed to EDCs from different matrices and sources. Moreover, pollution derived from anthropic and industrial activities leads to combined exposure to substances with multiple mechanisms of action on the endocrine system and correlated cell and tissue targets. For this reason, specific organs, such as the prostate gland, which physiologically are under the control of hormones like androgens and estrogens, are particularly sensitive to EDC stimulation. It is now well known that an imbalance in hormonal regulation can cause the onset of various prostate diseases, from benign prostate hyperplasia to prostate cancer. In this review, starting with the description of normal prostate gland anatomy and embryology, we summarize recent studies reporting on how the multiple and simultaneous exposure to estrogenic and anti-androgenic compounds belonging to EDCs are responsible for an increase in prostate disease incidence in the human population.
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Affiliation(s)
- Maria De Falco
- Department of Biology, University of Naples ‘‘Federico II’’, 80126 Naples, Italy;
- National Institute of Biostructures and Biosystems (INBB), 00136 Rome, Italy
- Center for Studies on Bioinspired Agro-Environmental Technology (BAT Center), 80055 Portici, Italy
| | - Vincenza Laforgia
- Department of Biology, University of Naples ‘‘Federico II’’, 80126 Naples, Italy;
- National Institute of Biostructures and Biosystems (INBB), 00136 Rome, Italy
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Burns CJ, Juberg DR. Cancer and occupational exposure to pesticides: an umbrella review. Int Arch Occup Environ Health 2021; 94:945-957. [PMID: 33495906 PMCID: PMC8238729 DOI: 10.1007/s00420-020-01638-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 12/17/2020] [Indexed: 01/08/2023]
Abstract
Purpose The aim was to identify the scope of the epidemiology literature reviewed regarding the risk of cancer as related to occupational exposure to pesticides and to compare regulatory toxicity results where feasible. Methods Review studies of breast, lung, prostate, non-Hodgkin lymphoma, and colorectal cancer were identified from the published literature from 2010 to 2020 using a priori inclusion and exclusion criteria. Epidemiology observations were first assessed and then compared against carcinogenicity profiles derived from regulatory toxicology studies. Results Several active ingredients were associated with specific cancer but overall, there was neither strong nor consistent epidemiologic data supportive of a positive association between pesticide exposure in occupational settings and cancer. Authors noted common themes related to the heterogeneity of exposure, study design, control for confounders, and the challenge to collect these data reliably and validly with an adequate sample size. Toxicology studies in laboratory animals that assessed carcinogenic potential did not reveal cancer outcomes that were concordant with reported epidemiologic findings. Conclusions Farming and pesticides represent diverse exposures that are difficult to quantify in epidemiologic studies. Going forward, investigators will need creative and novel approaches for exposure assessment. Integration of epidemiologic and toxicological studies with attention to biological plausibility, mode of toxicological action and relevance to humans will increase the ability to better assess associations between pesticides and cancer. Supplementary Information The online version contains supplementary material available at 10.1007/s00420-020-01638-y.
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Pardo LA, Beane Freeman LE, Lerro CC, Andreotti G, Hofmann JN, Parks CG, Sandler DP, Lubin JH, Blair A, Koutros S. Pesticide exposure and risk of aggressive prostate cancer among private pesticide applicators. Environ Health 2020; 19:30. [PMID: 32138787 PMCID: PMC7059337 DOI: 10.1186/s12940-020-00583-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/20/2020] [Indexed: 05/09/2023]
Abstract
BACKGROUND Prostate cancer (PCa) is one of the most commonly diagnosed cancers among men in developed countries; however, little is known about modifiable risk factors. Some studies have implicated organochlorine and organophosphate insecticides as risk factors (particularly the organodithioate class) and risk of clinically significant PCa subtypes. However, few studies have evaluated other pesticides. We used data from the Agricultural Health Study, a large prospective cohort of pesticide applicators in North Carolina and Iowa, to extend our previous work and evaluate 39 additional pesticides and aggressive PCa. METHODS We used Cox proportional hazards models, with age as the time scale, to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between ever use of individual pesticides and 883 cases of aggressive PCa (distant stage, poorly differentiated grade, Gleason score ≥ 7, or fatal prostate cancer) diagnosed between 1993 and 2015. All models adjusted for birth year, state, family history of PCa, race, and smoking status. We conducted exposure-response analyses for pesticides with reported lifetime years of use. RESULTS There was an increased aggressive PCa risk among ever users of the organodithioate insecticide dimethoate (n = 54 exposed cases, HR = 1.37, 95% CI = 1.04, 1.80) compared to never users. We observed an inverse association between aggressive PCa and the herbicide triclopyr (n = 35 exposed cases, HR = 0.68, 95% CI = 0.48, 0.95), with the strongest inverse association for those reporting durations of use above the median (≥ 4 years; n = 13 exposed cases, HR=0.44, 95% CI=0.26, 0.77). CONCLUSION Few additional pesticides were associated with prostate cancer risk after evaluation of extended data from this large cohort of private pesticide applicators.
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Affiliation(s)
- Larissa A. Pardo
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Laura E. Beane Freeman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Catherine C. Lerro
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Gabriella Andreotti
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Jonathan N. Hofmann
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Christine G. Parks
- National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, NC 27709 USA
| | - Dale P. Sandler
- National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, NC 27709 USA
| | - Jay H. Lubin
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Aaron Blair
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Stella Koutros
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Dr., Room #6E616, MSC 9771, Bethesda, MD 20892 USA
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Krstev S, Knutsson A. Occupational Risk Factors for Prostate Cancer: A Meta-analysis. J Cancer Prev 2019; 24:91-111. [PMID: 31360689 PMCID: PMC6619854 DOI: 10.15430/jcp.2019.24.2.91] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/20/2019] [Accepted: 03/20/2019] [Indexed: 01/20/2023] Open
Abstract
Prostate cancer is the second most common cancer in men worldwide. There are many occupational factors that have been suggested to cause prostate cancer. Our aim was to evaluate the evidence for causality by a literature review of occupational factors. We searched literature in Medline and SCOPUS from 1966 to June 30, 2015 to identify occupational risk factors for prostate cancer. The following risk factors were selected: farmers/agricultural workers, pesticides - whole group, and separately organophosphate and organochlorine pesticides, carbamates and triazines, cadmium, chromium, cutting fluids, acrylonitrile, rubber manufacturing, whole body vibration, shift work, flight personnel, ionizing radiation, and occupational physical activity. For each factor a literature search was performed and presented as meta-analysis of relative risk and heterogeneity (Q and I2 index). A total of 168 original studies met the inclusion criteria with 90,688 prostate cancer cases. Significantly increased risks were observed for the following occupational exposures: pesticides (metaRR = 1.15, 95% confidence interval [CI] = 1.01-1.32; I2 = 84%), and specifically group of organochlorine pesticides (meta relative risk [metaRR] = 1.08, 95% CI = 1.03-1.14; I2 = 0%), chromium (metaRR = 1.19, 95% CI = 1.07-1.34; I2 = 31%), shift work (metaRR = 1.25, 95% CI = 1.05-1.49; I2 = 78%) and pilots (metaRR = 1.41, 95% CI = 1.02-1.94; I2 = 63%) and occupational physical activity in cohort studies (metaRR = 0.87, 95% CI = 0.81-0.94; I2 = 0%). The literature review supports a causal association for a few of the previously suggested factors.
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Affiliation(s)
- Srmena Krstev
- Serbian Institute of Occupational Health, Belgrade,
Serbia
| | - Anders Knutsson
- Department of Health Sciences, Mid Sweden University, Sundsvall,
Sweden
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Li Z, Liu W, Wu C, She D. Effect of spraying direction on the exposure to handlers with hand-pumped knapsack sprayer in maize field. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 170:107-111. [PMID: 30529608 DOI: 10.1016/j.ecoenv.2018.11.121] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 11/25/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
Only less than one percent applied pesticides reach the target pest, the remainder spread out into the environment, effecting on workers, bystanders, consumers and so on. Handlers with manual knapsack sprayer are completely exposed to the pesticide spray plume when they deal with the pesticides. Those kinds of sprayer are widely used in developing countries, more than 75% of farmers using hand-pumped knapsack sprayer in China, yet rarely systematic studies had been focused on the typical applying scenario. The occupational exposure of pesticide is highly correlated with the pesticide spray plume flying time in the air in this scenario. Our study aimed to compare the estimated exposure level of handlers to chlorpyrifos sprayed at three spraying direction using a lever-operated knapsack in small farms in five agro-climatic zones of China. Experiments were performed by 24 farms in each province with three different crop heights (< 80 cm, spraying downward; 80-130 cm, spraying horizontal; and > 130 cm, spraying upward; eight farms for every direction) under typical field conditions. Each farmer covered a uniform area of 667 m2. The whole body dosimetry method and a personal air sampler were used to monitor the dermal and inhalation exposure. The estimated dermal exposure of the three spraying direction was 629, 1580, and 2140 mg/kg, respectively. The results showed that the total dermal exposure level increased with the spraying direction from downward to upward. Furthermore, appropriate cotton coveralls could reduce more than 90% of the total dermal exposure.
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Affiliation(s)
- Zhikang Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Wanli Liu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Changcai Wu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dongmei She
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Barry KH, Martinsen JI, Alavanja MCR, Andreotti G, Blair A, Hansen J, Kjærheim K, Koutros S, Lynge E, Sparèn P, Tryggvadottir L, Weiderpass E, Berndt SI, Pukkala E. Risk of early-onset prostate cancer associated with occupation in the Nordic countries. Eur J Cancer 2017; 87:92-100. [PMID: 29132062 PMCID: PMC6312186 DOI: 10.1016/j.ejca.2017.09.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/14/2017] [Accepted: 09/18/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Early-onset prostate cancer is often more aggressive and may have a different aetiology than later-onset prostate cancer, but has been relatively little studied to date. We evaluated occupation in relation to early- and later-onset prostate cancer in a large pooled study. METHODS We used occupational information from census data in five Nordic countries from 1960 to 1990. We identified prostate cancer cases diagnosed from 1961 to 2005 by linkage of census information to national cancer registries and calculated standardised incidence ratios (SIRs) separately for men aged 30-49 and those aged 50 or older. We also conducted separate analyses by period of follow-up, 1961-1985 and 1986-2005, corresponding to pre- and post-prostate-specific antigen (PSA) screening. RESULTS For early-onset prostate cancer (n = 1521), we observed the highest SIRs for public safety workers (e.g. firefighters) (SIR = 1.71, 95% confidence interval [CI]: 1.23-2.31) and military personnel (SIR = 1.97, 95% CI: 1.31-2.85). These SIRs were significantly higher than the SIRs for later-onset disease (for public safety workers, SIR = 1.10, 95% CI: 1.07-1.14 and for military personnel, SIR = 1.09, 95% CI: 1.05-1.13; pheterogeneity = 0.005 and 0.002, respectively). Administrators and technical workers also demonstrated significantly increased risks for early-onset prostate cancer, but the SIRs did not differ from those of later-onset disease (pheterogeneity >0.05). While our early-onset finding for public safety workers was restricted to the post-PSA period, that for military personnel was restricted to the pre-PSA period. CONCLUSION Our results suggest that occupational exposures, particularly for military personnel, may be associated with early-onset prostate cancer. Further evaluation is needed to explain these findings.
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Affiliation(s)
- Kathryn Hughes Barry
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA; Program in Oncology, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA; Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Jan Ivar Martinsen
- Department of Research, Cancer Registry of Norway - Institute of Population-Based Cancer Research, Oslo, Norway
| | - Michael C R Alavanja
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Gabriella Andreotti
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Aaron Blair
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Johnni Hansen
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Kristina Kjærheim
- Department of Research, Cancer Registry of Norway - Institute of Population-Based Cancer Research, Oslo, Norway
| | - Stella Koutros
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Pär Sparèn
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Laufey Tryggvadottir
- Icelandic Cancer Registry, Icelandic Cancer Society, Reykjavik, Iceland; Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Elisabete Weiderpass
- Department of Research, Cancer Registry of Norway - Institute of Population-Based Cancer Research, Oslo, Norway; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Genetic Epidemiology Group, Folkhälsan Research Center, Helsinki, Finland; Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Sonja I Berndt
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Eero Pukkala
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland; Faculty of Social Sciences, University of Tampere, Tampere, Finland
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Lee MH, Cho ER, Lim JE, Jee SH. Association between serum persistent organic pollutants and DNA methylation in Korean adults. ENVIRONMENTAL RESEARCH 2017; 158:333-341. [PMID: 28672131 DOI: 10.1016/j.envres.2017.06.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 06/17/2017] [Accepted: 06/19/2017] [Indexed: 05/20/2023]
Abstract
BACKGROUND Exposure to persistent organic pollutants (POPs) has been associated with epigenetic changes such as DNA methylation, which can influence human health. However, the association between POPs and DNA methylation by sex was not shown in previous studies. OBJECTIVES We investigated the association between POPs and DNA methylation in men and women using a larger population. METHODS A cross-sectional study was conducted using the data of 444 Koreans (253 men and 191 women). Measurements for sixteen different POPs, including six organochlorine pesticides (OCPs) and ten polychlorinated biphenyls (PCBs) were taken in serum. DNA methylation via Alu and LINE-1 in peripheral leukocytes was measured by pyrosequencing. To evaluate the association between POPs and DNA methylation, the Pearson's correlation and multiple linear regression analyses were performed. RESULTS Except for PCB52 and PCB101, we found significant inverse associations between p,p'-DDE, cis-Heptachlor epoxide, and PCBs and Alu assay in men after adjusting for age, BMI, smoking status, and alcohol consumption (β = -0.67 for p,p'-DDE; -0.28 for cis-Heptachlor epoxide; in the range from -0.43 to -1.60 for PCBs). In women, PCB153 and PCB180 showed statistically significant inverse association with Alu assay (β = -0.22 for PCB153; -0.22 for PCB180). Except for PCB101, p,p'-DDE and PCBs were positively associated with LINE-1 assay in women (β = 0.48 for p,p'-DDE; in the range from 0.40-0.89 for PCBs) while p,p'-DDE, PCB153, and PCB180 showed positive associations with LINE-1 assay in men (β = 0.55 for p,p'-DDE; 0.65 for PCB153; 1.02 for PCB180). CONCLUSIONS We found that several POPs were associated with global DNA hypomethylation in the Alu assay for men and global DNA hypermethylation in the LINE-1 assay for women.
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Affiliation(s)
- Mi Hwa Lee
- Institute for Health and Society, Hanyang University, Seoul, Republic of Korea
| | - Eo Rin Cho
- Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
| | - Jung-Eun Lim
- Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea; College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Sun Ha Jee
- Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea.
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Vazquez Boucard C, Lee-Cruz L, Mercier L, Ramírez Orozco M, Serrano Pinto V, Anguiano G, Cazares L, Díaz D. A study of DNA damage in buccal cells of consumers of well- and/or tap-water using the comet assay: Assessment of occupational exposure to genotoxicants. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2017; 58:619-627. [PMID: 28714172 DOI: 10.1002/em.22111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 06/09/2017] [Accepted: 06/14/2017] [Indexed: 06/07/2023]
Abstract
Because of concerns that natural aquifers in the region of Todos Santos (Baja California Sur, Mexico) might be contaminated by organochlorine pesticides and heavy metals, a case-control study was conducted among consumers and non-consumers of well- and/or tap-water to determine risks to human health. This study was based on a genotoxic evaluation of buccal cells using the Comet assay technique. Levels of DNA damage in the consumers group were significantly higher than those of the control group. However, occupational exposure to genotoxicants showed to be the critical factor rather than water consumption. Taking into account the professions of well- and/or tap-water consumers, agricultural workers exposed directly (those who fumigated) or indirectly (those not involved in fumigating) to agrochemicals showed greater genetic damage than controls. This difference persisted even when age, and whether the person smoked or consumed alcoholic drinks were considered. These factors were not associated with the level of genetic damage observed. Chemical analyses of organochlorine pesticides and heavy metals were carried out to evaluate the water quality of wells, faucets, and surface water of canals consumed by the population and/or used for irrigation. High concentrations of α and β endosulfan were detected in water of surface canals. Although our inventory of agrochemicals employed in the region showed the use of products considered carcinogenic and/or mutagenic, they were not detected by the analytical techniques used. Heavy metals (arsenic, mercury, and lead) were detected in water of some wells used for irrigation and human consumption. Environ. Mol. Mutagen. 58:619-627, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Celia Vazquez Boucard
- Department of Environmental Management and Conservation, Laboratory of Proteomic and Genetic Toxicology, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, BCS, Mexico
| | - Larisa Lee-Cruz
- Department of Environmental Management and Conservation, Laboratory of Proteomic and Genetic Toxicology, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, BCS, Mexico
| | - Laurence Mercier
- Department of Environmental Management and Conservation, Laboratory of Proteomic and Genetic Toxicology, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, BCS, Mexico
| | - Martín Ramírez Orozco
- Department of Environmental Management and Conservation, Laboratory of Proteomic and Genetic Toxicology, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, BCS, Mexico
| | - Vania Serrano Pinto
- Department of Environmental Management and Conservation, Laboratory of Proteomic and Genetic Toxicology, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, BCS, Mexico
| | - Gerardo Anguiano
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, DGO, Mexico
| | - Linette Cazares
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, DGO, Mexico
| | - Daniel Díaz
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, DGO, Mexico
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Lemarchand C, Tual S, Levêque-Morlais N, Perrier S, Belot A, Velten M, Guizard AV, Marcotullio E, Monnereau A, Clin B, Baldi I, Lebailly P. Cancer incidence in the AGRICAN cohort study (2005-2011). Cancer Epidemiol 2017; 49:175-185. [PMID: 28709062 PMCID: PMC6200131 DOI: 10.1016/j.canep.2017.06.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/22/2017] [Accepted: 06/06/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Numerous studies have been conducted among farmers, but very few of them have involved large prospective cohorts, and few have included a significant proportion of women and farm workers. Our aim was to compare cancer incidence in the cohort (overall, by sex, and by work on farm, occupational status and pesticide use) within the general population. METHODS More than 180,000 participants in the AGRICAN cohort were matched to cancer registries to identify cancer cases diagnosed from enrolment (2005-2007) to 31st December 2011. We calculated standardized incidence ratios (SIRs) and 95% confidence intervals (95%CIs). RESULTS Over the period, 11,067 incident cancer cases were identified (7304 men and 3763 women). Overall cancer incidence did not differ between the cohort and the general population. Moreover, SIRs were significantly higher for prostate cancer (SIR=1.07, 95%CI 1.03-1.11) and non-Hodgkin lymphoma (SIR=1.09, 95%CI 1.01-1.18) among men, skin melanoma among women (SIR=1.23, 95%CI 1.05-1.43) and multiple myeloma (men: SIR=1.38, 95%CI 1.18-1.62; women: SIR=1.26, 95%CI 1.02-1.54). In contrast, SIRs were lower for upper aerodigestive tract and respiratory cancers. Increase in risk was greater in male farm workers for prostate and lip cancer, in female farm workers for skin melanoma, and in male farm owners for multiple myeloma. Moreover, incidence of multiple myeloma and skin melanoma was higher among male and female pesticide users respectively. CONCLUSION We found a decreased incidence for tobacco-related cancers and an increased incidence of prostate cancers, skin melanoma and multiple myeloma. Specific subgroups had a higher cancer incidence related to occupational status and pesticide use.
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Affiliation(s)
- Clémentine Lemarchand
- INSERM, UMR 1086 Cancers et Préventions, F-14076, Caen, France; Université de Caen Normandie, F-14032, Caen, France; Centre de Lutte Contre le Cancer François Baclesse, F-14076, Caen, France.
| | - Séverine Tual
- INSERM, UMR 1086 Cancers et Préventions, F-14076, Caen, France; Université de Caen Normandie, F-14032, Caen, France; Centre de Lutte Contre le Cancer François Baclesse, F-14076, Caen, France
| | - Noémie Levêque-Morlais
- INSERM, UMR 1086 Cancers et Préventions, F-14076, Caen, France; Université de Caen Normandie, F-14032, Caen, France; Centre de Lutte Contre le Cancer François Baclesse, F-14076, Caen, France
| | - Stéphanie Perrier
- INSERM, UMR 1086 Cancers et Préventions, F-14076, Caen, France; Université de Caen Normandie, F-14032, Caen, France; Centre de Lutte Contre le Cancer François Baclesse, F-14076, Caen, France
| | - Aurélien Belot
- Hospices Civils de Lyon, Service de Biostatistique, F-69003, Lyon, France
| | - Michel Velten
- Registre des Cancers du Bas-Rhin, Faculté de Médecine, Université de Strasbourg, F-67085, Strasbourg, France
| | - Anne-Valérie Guizard
- INSERM, UMR 1086 Cancers et Préventions, F-14076, Caen, France; Registre Général des Tumeurs du Calvados, Centre François Baclesse, F-14076, Caen, France
| | - Elisabeth Marcotullio
- Caisse Centrale de la Mutualité Sociale Agricole, Direction de la santé sécurité au travail, F-93547, Bagnolet, France
| | - Alain Monnereau
- Registre des hémopathies malignes de la Gironde, F-33076, Bordeaux, France; INSERM, ISPED, Centre INSERM U1219-Bordeaux Population Health Center, EPICENE team, F-33076, Bordeaux, France; Université de Bordeaux, ISPED, Centre INSERM U1219-Bordeaux Population Health Center, EPICENE Team, F-33000, Bordeaux, France
| | - Bénédicte Clin
- INSERM, UMR 1086 Cancers et Préventions, F-14076, Caen, France; Université de Caen Normandie, F-14032, Caen, France; CHU de Caen, Service de Pathologie Professionnelle, F-14033, Caen, France
| | - Isabelle Baldi
- INSERM, ISPED, Centre INSERM U1219-Bordeaux Population Health Center, EPICENE team, F-33076, Bordeaux, France; Service de Médecine du Travail et Pathologies professionnelles, CHU de Bordeaux, F-33000, Bordeaux, France; Université de Bordeaux, ISPED, Centre INSERM U1219-Bordeaux Population Health Center, EPICENE Team, F-33000, Bordeaux, France
| | - Pierre Lebailly
- INSERM, UMR 1086 Cancers et Préventions, F-14076, Caen, France; Université de Caen Normandie, F-14032, Caen, France; Centre de Lutte Contre le Cancer François Baclesse, F-14076, Caen, France
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12
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Christensen CH, Barry KH, Andreotti G, Alavanja MCR, Cook MB, Kelly SP, Burdett LA, Yeager M, Beane Freeman LE, Berndt SI, Koutros S. Sex Steroid Hormone Single-Nucleotide Polymorphisms, Pesticide Use, and the Risk of Prostate Cancer: A Nested Case-Control Study within the Agricultural Health Study. Front Oncol 2016; 6:237. [PMID: 27917368 PMCID: PMC5116569 DOI: 10.3389/fonc.2016.00237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 10/25/2016] [Indexed: 12/17/2022] Open
Abstract
Experimental and epidemiologic investigations suggest that certain pesticides may alter sex steroid hormone synthesis, metabolism or regulation, and the risk of hormone-related cancers. Here, we evaluated whether single-nucleotide polymorphisms (SNPs) involved in hormone homeostasis alter the effect of pesticide exposure on prostate cancer risk. We evaluated pesticide-SNP interactions between 39 pesticides and SNPs with respect to prostate cancer among 776 cases and 1,444 controls nested in the Agricultural Health Study cohort. In these interactions, we included candidate SNPs involved in hormone synthesis, metabolism or regulation (N = 1,100), as well as SNPs associated with circulating sex steroid concentrations, as identified by genome-wide association studies (N = 17). Unconditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). Multiplicative SNP-pesticide interactions were calculated using a likelihood ratio test. We translated p-values for interaction into q-values, which reflected the false discovery rate, to account for multiple comparisons. We observed a significant interaction, which was robust to multiple comparison testing, between the herbicide dicamba and rs8192166 in the testosterone metabolizing gene SRD5A1 (p-interaction = 4.0 × 10-5; q-value = 0.03), such that men with two copies of the wild-type genotype CC had a reduced risk of prostate cancer associated with low use of dicamba (OR = 0.62 95% CI: 0.41, 0.93) and high use of dicamba (OR = 0.44, 95% CI: 0.29, 0.68), compared to those who reported no use of dicamba; in contrast, there was no significant association between dicamba and prostate cancer among those carrying one or two copies of the variant T allele at rs8192166. In addition, interactions between two organophosphate insecticides and SNPs related to estradiol metabolism were observed to result in an increased risk of prostate cancer. While replication is needed, these data suggest both agonistic and antagonistic effects on circulating hormones, due to the combination of exposure to pesticides and genetic susceptibility, may impact prostate cancer risk.
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Affiliation(s)
- Carol H Christensen
- Office of Science, Center for Tobacco Products, Food and Drug Administration, Document Control Center , Silver Spring, MD , USA
| | - Kathryn Hughes Barry
- Occupational and Environmental Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA; Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA; Program in Oncology, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA
| | - Gabriella Andreotti
- Occupational and Environmental Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health , Rockville, MD , USA
| | - Michael C R Alavanja
- Occupational and Environmental Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health , Rockville, MD , USA
| | - Michael B Cook
- Metabolic Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health , Rockville, MD , USA
| | - Scott P Kelly
- Metabolic Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health , Rockville, MD , USA
| | - Laurie A Burdett
- Cancer Genomics Research Laboratory, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research Inc., National Cancer Institute-Frederick , Frederick, MD , USA
| | - Meredith Yeager
- Cancer Genomics Research Laboratory, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research Inc., National Cancer Institute-Frederick , Frederick, MD , USA
| | - Laura E Beane Freeman
- Occupational and Environmental Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health , Rockville, MD , USA
| | - Sonja I Berndt
- Occupational and Environmental Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health , Rockville, MD , USA
| | - Stella Koutros
- Occupational and Environmental Epidemiology Branch, Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health , Rockville, MD , USA
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13
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Silva JFS, Mattos IE, Luz LL, Carmo CN, Aydos RD. Exposure to pesticides and prostate cancer: systematic review of the literature. REVIEWS ON ENVIRONMENTAL HEALTH 2016; 31:311-327. [PMID: 27244877 DOI: 10.1515/reveh-2016-0001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 04/22/2016] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Investigations about the association between prostate cancer and environmental and/or occupational pesticide exposure have evidenced a possible role of these chemical substances on tumor etiology, related to their action as endocrine disruptors. OBJECTIVE To assess the association between pesticide exposure and prostate cancer by conducting a systematic review of the scientific literature. MATERIALS AND METHODS Articles published until August 18, 2015 were searched in the databases MEDLINE/Pubmed, Scielo, and Lilacs using the keywords "pesticides" and "prostate cancer". Only the analytical observational studies whose methodological quality met the criteria established by the New Castle-Ottawa scale were included in this review. RESULTS The review included 49 studies published between 1993 and 2015. All studies were in English and analyzed exposure to pesticides and/or agricultural activities. Most studies (32 articles) found a positive association between prostate cancer and pesticides or agricultural occupations, with estimates ranging from 1.01 to 14.10. CONCLUSION The evidence provided by the reviewed studies indicates a possible association between the development of prostate cancer and pesticide exposure and/or agricultural occupations.
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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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Lebailly P, Mirey G, Herin F, Lecluse Y, Salles B, Boutet-Robinet E. DNA damage in B and T lymphocytes of farmers during one pesticide spraying season. Int Arch Occup Environ Health 2015; 88:963-72. [PMID: 25647545 PMCID: PMC4564440 DOI: 10.1007/s00420-015-1024-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 01/20/2015] [Indexed: 01/07/2023]
Abstract
PURPOSE The effect of one pesticide spraying season on DNA damage was measured on B and T lymphocytes among open-field farmers and controls. METHODS At least two peripheral blood samples were collected from each individual: one in a period without any pesticide application, several weeks after the last use (January, at period P0), and another in the intensive pesticide spraying period (May or June, at period P4). DNA damage was studied by alkaline comet assay on isolated B or T lymphocytes. RESULTS Longitudinal comparison of DNA damage observed at both P0 and P4 periods revealed a statistically significant genotoxic effect of the pesticide spraying season in both B (P = 0.02) and T lymphocytes (P = 0.02) in exposed farmers. In contrast, non-farmers did not show any significant modifications. DNA damage levels in B and T lymphocytes were significantly higher in farmers than in non-farmers during the P4 period (P = 0.003 and P = 0.001 for B and T lymphocytes, respectively) but not during the P0 period. The seasonal effect observed among farmers was not correlated with either total farm area, farm area devoted to crops or recent solar exposure. On average, farmers used pesticides for 21 days between P0 and P4. Between the two time points studied, there was a tendency for a potential effect of the number of days of fungicide treatments (r (2) = 0.43; P = 0.11) on T lymphocyte DNA damage. CONCLUSIONS A genotoxic effect was found in lymphocytes of farmers exposed to pesticides, suggesting in particular the possible implication of fungicides.
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Affiliation(s)
- Pierre Lebailly
- Univ. Caen Basse-Normandie, Cancers et Préventions, IFR146 ICORE, 14000, Caen, France
- INSERM, UMR 1086, 14000, Caen, France
- Centre de Lutte Contre le Cancer François Baclesse, 14076, Caen, France
| | - Gladys Mirey
- INRA, UMR 1331, Toxalim, Research Centre in Food Toxicology, 31027, Toulouse, France
- Université de Toulouse, UPS, UMR 1331, Toxalim, 31062, Toulouse, France
| | - Fabrice Herin
- INSERM, UMR 1027, Université de Toulouse, UPS, 31000, Toulouse, France
- CHU Toulouse, Service des Maladies Professionnelles et Environnementales, 31059, Toulouse, France
| | - Yannick Lecluse
- Univ. Caen Basse-Normandie, Cancers et Préventions, IFR146 ICORE, 14000, Caen, France
- INSERM, UMR 1086, 14000, Caen, France
- Centre de Lutte Contre le Cancer François Baclesse, 14076, Caen, France
| | - Bernard Salles
- INRA, UMR 1331, Toxalim, Research Centre in Food Toxicology, 31027, Toulouse, France
- Université de Toulouse, UPS, UMR 1331, Toxalim, 31062, Toulouse, France
| | - Elisa Boutet-Robinet
- INRA, UMR 1331, Toxalim, Research Centre in Food Toxicology, 31027, Toulouse, France.
- Université de Toulouse, UPS, UMR 1331, Toxalim, 31062, Toulouse, France.
- Equipe « Génotoxicité et Signalisation » - Toxalim - UMR 1331, INRA/INP/UPS, 180 chemin de Tournefeuille, BP 93173, 31027, Toulouse Cedex 3, France.
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Koutros S, Langseth H, Grimsrud TK, Barr DB, Vermeulen R, Portengen L, Wacholder S, Freeman LEB, Blair A, Hayes RB, Rothman N, Engel LS. Prediagnostic Serum Organochlorine Concentrations and Metastatic Prostate Cancer: A Nested Case-Control Study in the Norwegian Janus Serum Bank Cohort. ENVIRONMENTAL HEALTH PERSPECTIVES 2015; 123:867-72. [PMID: 25734605 PMCID: PMC4559951 DOI: 10.1289/ehp.1408245] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 03/02/2015] [Indexed: 05/05/2023]
Abstract
BACKGROUND Organochlorine (OC) insecticides and polychlorinated biphenyls (PCBs) have been shown to have estrogenic, antiestrogenic, or antiandrogenic properties; as a result, the impact of exposure to these compounds and risk of hormonal cancers, such as prostate cancer, is a concern. OBJECTIVES We conducted a nested case-control study, using prospectively collected serum, to estimate associations between OC exposures and metastatic prostate cancer in a population-based cohort from Norway. METHODS Sera from 150 cases and 314 controls matched on date of blood draw, age at blood draw, and region was used to determine concentrations of 11 OC pesticide metabolites and 34 PCB congeners. Odds ratios (ORs) and 95% confidence intervals (95% CIs) for quartiles of lipid-corrected metabolite levels were calculated using conditional logistic regression. RESULTS Metastatic prostate cancer was two times as likely among men with serum concentrations of oxychlordane in the highest quartile compared with those in the lowest quartile (OR = 2.03; 95% CI: 1.03, 4.03; p-trend 0.05). Elevated but nonsignificant ORs were estimated for the highest versus lowest quartile of heptachlor epoxide, HCB, and mirex, although these exposures were correlated with oxychlordane. Findings for specific PCB congeners showed a significant inverse association between natural log-transformed lipid-adjusted PCB 44 and metastatic prostate cancer (OR = 0.74; 95% CI: 0.56, 0.97; p-trend = 0.02). CONCLUSIONS Our study highlights the importance of estimating associations with specific OC chemicals and suggests a possible role of OC insecticides and PCBs in the etiology of metastatic prostate cancer. CITATION Koutros S, Langseth H, Grimsrud TK, Barr DB, Vermeulen R, Portengen L, Wacholder S, Beane Freeman LE, Blair A, Hayes RB, Rothman N, Engel LS. 2015. Prediagnostic serum organochlorine concentrations and metastatic prostate cancer: a nested case-control study in the Norwegian Janus Serum Bank cohort. Environ Health Perspect 123:867-872; http://dx.doi.org/10.1289/ehp.1408245.
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Affiliation(s)
- Stella Koutros
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
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17
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Organochlorine pesticides and prostate cancer, Is there an association? A meta-analysis of epidemiological evidence. Cancer Causes Control 2015; 26:1375-92. [DOI: 10.1007/s10552-015-0643-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 07/22/2015] [Indexed: 12/15/2022]
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Lim JE, Park SH, Jee SH, Park H. Body concentrations of persistent organic pollutants and prostate cancer: a meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:11275-84. [PMID: 25797015 DOI: 10.1007/s11356-015-4315-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/02/2015] [Indexed: 05/15/2023]
Abstract
There have been some concerns that persistent organic pollutants (POPs) may be associated with the risk of prostate cancer. Meta-analyses have not yet investigated the association between human-biomonitoring data for POPs and prostate cancer risk. The purpose of this study was to assess the association between body concentration of individual compounds or mixtures of POPs and prostate cancer risk in the general population by performing a meta-analysis. A literature search was performed using PubMed, EMBASE, and KoreaMed from the period 1950 through 2014. The odds ratio (OR) and its 95% confidence interval (CI) of prostate cancer associated with POPs were estimated using fixed-effects model or random-effects model where appropriate. Dose-response relationships were assessed by using the generalized least-squares method for trend estimation. A total of eight (six case-control, one cross-sectional, one nested case-control) studies including 1158 prostate cancer cases among 6932 subjects were selected for the meta-analysis. Total POPs of interest showed positive associations with statistical significance on prostate cancer (OR 1.31, 95% CI 1.13, 1.57). In dose-response meta-analysis, 1 μg/g lipid of PCBs was found to be associated with a 49% increased risk of prostate cancer (OR 1.49, 95% CI 1.07, 2.06). One nanogram per gram (1000 μg/g) lipid of trans-nonachlor was found to be associated with approximately 2% increased risk of prostate cancer (OR = 1.02/1 ng/g lipid of trans-nonachlor, 95% CI 1.00, 1.03). The available evidence suggests that body concentrations of POPs are positively associated with prostate cancer risk, which implies valuable evidence for prostate cancer prevention.
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Affiliation(s)
- Jung-eun Lim
- Institute for Health Promotion & Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
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Adjakly M, Ngollo M, Dagdemir A, Judes G, Pajon A, Karsli-Ceppioglu S, Penault-Llorca F, Boiteux JP, Bignon YJ, Guy L, Bernard-Gallon D. Prostate cancer: The main risk and protective factors-Epigenetic modifications. ANNALES D'ENDOCRINOLOGIE 2015; 76:25-41. [PMID: 25592466 DOI: 10.1016/j.ando.2014.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 06/18/2014] [Accepted: 09/09/2014] [Indexed: 01/14/2023]
Abstract
With 13 million new cases worldwide every year, prostate cancer is as a very real public health concern. Prostate cancer is common in over-50s men and the sixth-leading cause of cancer-related death in men worldwide. Like all cancers, prostate cancer is multifactorial - there are non-modifiable risk factors like heredity, ethnicity and geographic location, but also modifiable risk factors such as diet. Diet-cancer linkages have risen to prominence in the last few years, with accruing epidemiological data pointing to between-population incidence differentials in numerous cancers. Indeed, there are correlations between fat-rich diet and risk of hormone-dependent cancers like prostate cancer and breast cancer. Diet is a risk factor for prostate cancer, but certain micronutrients in specific diets are considered protective factors against prostate cancer. Examples include tomato lycopene, green tea epigallocatechin gallate, and soy phytoestrogens. These micronutrients are thought to exert cancer-protective effects via anti-oxidant pathways and inhibition of cell proliferation. Here, we focus in on the effects of phytoestrogens, and chiefly genistein and daidzein, which are the best-researched to date. Soy phytoestrogens are nonsteroid molecules whose structural similarity lends them the ability to mimic the effects of 17ß-estradiol. On top of anti-oxidant effects, there is evidence that soy phytoestrogens can modulate the epigenetic modifications found in prostate cancer. We also studied the impact of phytoestrogens on epigenetic modifications in prostate cancer, with special focus on DNA methylation, miRNA-mediated regulation and histone modifications.
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Affiliation(s)
- Mawussi Adjakly
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France
| | - Marjolaine Ngollo
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France
| | - Aslihan Dagdemir
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France
| | - Gaëlle Judes
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France
| | - Amaury Pajon
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France
| | - Seher Karsli-Ceppioglu
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France; Département de toxicologie, faculté de pharmacie, université de Marmara, Istanbul, Turkey
| | - Frédérique Penault-Llorca
- ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France; Laboratoire de pathologie médicale, centre Jean-Perrin, 58, rue Montalembert, 63000 Clermont-Ferrand, France
| | - Jean-Paul Boiteux
- Département d'urologie, CHU Gabriel-Montpied, 58, rue Montalembert, 63000 Clermont-Ferrand, France
| | - Yves-Jean Bignon
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France.
| | - Laurent Guy
- ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France; Département d'urologie, CHU Gabriel-Montpied, 58, rue Montalembert, 63000 Clermont-Ferrand, France
| | - Dominique Bernard-Gallon
- Département d'oncogénétique, CBRV, centre Jean-Perrin, 28, place Henri-Dunant, BP 38, 63001 Clermont-Ferrand, France; ERTICA, EA4677, université d'Auvergne, 28, place Henri-Dunant, 63001 Clermont-Ferrand, France
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Choi S. Critical review on the carcinogenic potential of pesticides used in Korea. Asian Pac J Cancer Prev 2014; 15:5999-6003. [PMID: 25124563 DOI: 10.7314/apjcp.2014.15.15.5999] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Pesticides used in Korea are grouped by four classes of hazard (extremely, highly, moderately and slightly hazardous) based on acute oral and dermal toxicity in the rat. However, there is little information of carcinogenic effects. The aim of this study was to evaluate potential carcinogenicity for active ingredients of pesticides used in Korea. A total of 1,283 pesticide items were registered under the Pesticide Control Act of which 987 were commercially available. Of these 987 items, 360 active ingredients not duplicated were evaluated for carcinogenicity using the carcinogen list established by the US Environmental Protection Agency (EPA). Some 25 out of 360 ingredients were classified as likely to be carcinogenic (probable) to humans and 52 had suggestive evidence of carcinogenic potential (suspected) based on the US EPA classification. Some 31% of 987 items contained probable or suspected human carcinogenic ingredients. Carcinogenic pesticides accounted for 24% (5,856/24,795 tons) of the total volume of consumption in Korea. Interestingly, pesticides with lower acute toxicity were found to have higher carcinogenic potential. Based on these findings, the study suggests that it is important to provide information on long-term toxicity to farmers, in addition to acute toxicity data.
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Affiliation(s)
- Sangjun Choi
- Department of Occupational Health, Catholic University of Daegu, Geyonsangbukdo, Korea E-mail :
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Mills PK, Shah P. Cancer incidence in California farm workers, 1988-2010. Am J Ind Med 2014; 57:737-47. [PMID: 24954888 DOI: 10.1002/ajim.22338] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2014] [Indexed: 01/12/2023]
Abstract
BACKGROUND Farmers and farm workers have previously been found to experience decreased risk of some causes of death but elevated risks of certain types of cancer. A previous report on cancer incidence in a farm worker labor union between 1987 and 1997 found increased leukemia, brain, stomach, and uterine cervix cancer rates in this working population. METHODS A roster of farm workers was created and electronically linked to the database of the California Cancer Registry. Proportionate cancer incidence (PCIR), stage, and age at diagnosis and histological subtypes of cancer were compared between the United Farm Workers (UFW) members and the Hispanic population of California as well as to the non-Hispanic whites (NHW). RESULTS In this population of 139,000 farm workers in California, more than 3,600 cancer diagnoses were recorded between 1988 and 2010. Proportionately more cancer was noted in the UFW than among California NHW for kidney and renal pelvis cancer (PCIR = 1.60), liver (PCIR = 4.24), prostate (PCIR = 1.13), and uterine cervix cancer (PCIR = 2.08). Proportionately less breast (PCIR = 0.85), lung (PCIR = 0.75), skin melanoma (PCIR = 0.18), and urinary bladder cancer (PCIR = 0.59) was found. Stage at diagnosis was more advanced in the farm workers for several cancer sites, although, not for colorectal cancer. CONCLUSIONS These farm workers experience proportionally more prostate, kidney and renal pelvis, brain, liver, stomach, cervix and leukemia and less breast, melanoma, and colorectal cancer than reference populations. For many sites, cancer is not diagnosed as early in the farm workers as in the comparison groups, except for colorectal cancer in females and melanoma in males.
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Affiliation(s)
- Paul K. Mills
- Department of Internal Medicine; University of California; San Francisco Fresno Medical Education and Research Program; Fresno California
| | - Purvi Shah
- Department of Internal Medicine; University of California; San Francisco Fresno Medical Education and Research Program; Fresno California
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Lamb JC, Boffetta P, Foster WG, Goodman JE, Hentz KL, Rhomberg LR, Staveley J, Swaen G, Van Der Kraak G, Williams AL. Critical comments on the WHO-UNEP State of the Science of Endocrine Disrupting Chemicals – 2012. Regul Toxicol Pharmacol 2014; 69:22-40. [DOI: 10.1016/j.yrtph.2014.02.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 01/31/2014] [Accepted: 02/01/2014] [Indexed: 12/20/2022]
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Miranda Filho AL, Koifman RJ, Koifman S, Monteiro TRG. Brain cancer mortality in an agricultural and a metropolitan region of Rio de Janeiro, Brazil: a population-based, age-period-cohort study, 1996-2010. BMC Cancer 2014; 14:320. [PMID: 24884498 PMCID: PMC4019359 DOI: 10.1186/1471-2407-14-320] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 04/24/2014] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Individuals who live in rural areas are at greater risk for brain cancer, and pesticide exposure may contribute to this increased risk. The aims of this research were to analyze the mortality trends and to estimate the age-period-cohort effects on mortality rates from brain cancer in two regions in Rio de Janeiro, Brazil. METHODS This descriptive study examined brain cancer mortality patterns in individuals of both sexes, >19 years of age, who died between 1996 and 2010. They were residents of a rural (Serrana) or a non-rural (Metropolitan) area of Rio de Janeiro, Brazil. We estimated mortality trends using Joinpoint Regression analysis. Age-period-cohort models were estimated using Poisson regression analysis. RESULTS The estimated annual percentage change in mortality caused by brain cancer was 3.8% in the Serrana Region (95% confidence interval (CI): 0.8-5.6) and -0.2% (95% CI: -1.2-0.7) in the Metropolitan Region. The results indicated that the relative risk was higher in the rural region for the more recent birth cohorts (1954 and later). Compared with the reference birth cohort (1945-49, Serrana Region), the relative risk was four times higher for individuals born between 1985 and 1989. CONCLUSIONS The results of this study indicate that there is an increasing trend in brain cancer mortality rates in the rural Serrana Region in Brazil. A cohort effect occurred in the birth cohorts born in this rural area after 1954. At the ecological level, different environmental factors, especially the use of pesticides, may explain regional disparities in the mortality patterns from brain cancers.
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Affiliation(s)
- Adalberto Luiz Miranda Filho
- Environmental and Public Health Program, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Rosalina Jorge Koifman
- Environmental and Public Health Program, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- Department of Epidemiology and Quantitative Methods, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Sergio Koifman
- Environmental and Public Health Program, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- Department of Epidemiology and Quantitative Methods, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Torres Rego Gina Monteiro
- Environmental and Public Health Program, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
- Department of Epidemiology and Quantitative Methods, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
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Gao B, Tao C, Ye J, Ning J, Mei X, Jiang Z, Chen S, She D. Measurement of operator exposure to chlorpyrifos. PEST MANAGEMENT SCIENCE 2014; 70:636-641. [PMID: 23818302 DOI: 10.1002/ps.3601] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 06/17/2013] [Accepted: 07/01/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND To date, no research has been conducted to establish exposure levels for occupational pesticide operators under typical use scenarios in China. Through surrogate skin techniques (the whole-body method), the authors monitored dermal and inhalation exposure of pesticide applicators in China. In addition, the exposure of pesticide mixers was analysed. RESULTS The total dermal exposure of inexperienced and experienced applicators was respectively 4037 and 536 mg kg(-1) of active ingredient (AI) handled for application to maize that was <80 cm in height. The exposure level was highest on hands; the closer to the hands, the lower arms and the upper legs, the higher the exposure. The unit exposure of mixers differed according to the formulation; exposure to emulsifiable concentrate (EC) and oil-in-water emulsion (EW) was greater than exposure to wettable powder (WP) or wettable dispersible granules (WG). The unit exposure of mixers via inhalation was significantly greater than that of applicators when chlorpyrifos (48% EC) was used (P < 0.0001). CONCLUSIONS The main objectives of this study were to provide an indication of the realistic exposure risk of mixers and applicators, and to contribute useful information for risk mitigation and management and epidemiological studies in China.
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Affiliation(s)
- BeiBei Gao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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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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Koutros S, Berndt SI, Hughes Barry K, Andreotti G, Hoppin JA, Sandler DP, Yeager M, Burdett LA, Yuenger J, Alavanja MCR, Beane Freeman LE. Genetic susceptibility loci, pesticide exposure and prostate cancer risk. PLoS One 2013; 8:e58195. [PMID: 23593118 PMCID: PMC3617165 DOI: 10.1371/journal.pone.0058195] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 02/03/2013] [Indexed: 12/22/2022] Open
Abstract
Uncovering SNP (single nucleotide polymorphisms)-environment interactions can generate new hypotheses about the function of poorly characterized genetic variants and environmental factors, like pesticides. We evaluated SNP-environment interactions between 30 confirmed prostate cancer susceptibility loci and 45 pesticides and prostate cancer risk in 776 cases and 1,444 controls in the Agricultural Health Study. We used unconditional logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs). Multiplicative SNP-pesticide interactions were calculated using a likelihood ratio test. After correction for multiple tests using the False Discovery Rate method, two interactions remained noteworthy. Among men carrying two T alleles at rs2710647 in EH domain binding protein 1 (EHBP1) SNP, the risk of prostate cancer in those with high malathion use was 3.43 times those with no use (95% CI: 1.44–8.15) (P-interaction = 0.003). Among men carrying two A alleles at rs7679673 in TET2, the risk of prostate cancer associated with high aldrin use was 3.67 times those with no use (95% CI: 1.43, 9.41) (P-interaction = 0.006). In contrast, associations were null for other genotypes. Although additional studies are needed and the exact mechanisms are unknown, this study suggests known genetic susceptibility loci may modify the risk between pesticide use and prostate cancer.
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Affiliation(s)
- 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.
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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: 189] [Impact Index Per Article: 17.2] [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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Koutros S, Beane Freeman LE, Lubin JH, Heltshe SL, Andreotti G, Barry KH, DellaValle CT, Hoppin JA, Sandler DP, Lynch CF, Blair A, Alavanja MCR. Risk of total and aggressive prostate cancer and pesticide use in the Agricultural Health Study. Am J Epidemiol 2013; 177:59-74. [PMID: 23171882 DOI: 10.1093/aje/kws225] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Because pesticides may operate through different mechanisms, the authors studied the risk of prostate cancer associated with specific pesticides in the Agricultural Health Study (1993-2007). With 1,962 incident cases, including 919 aggressive prostate cancers among 54,412 applicators, this is the largest study to date. Rate ratios and 95% confidence intervals were calculated by using Poisson regression to evaluate lifetime use of 48 pesticides and prostate cancer incidence. Three organophosphate insecticides were significantly associated with aggressive prostate cancer: fonofos (rate ratio (RR) for the highest quartile of exposure (Q4) vs. nonexposed = 1.63, 95% confidence interval (CI): 1.22, 2.17; P(trend) < 0.001); malathion (RR for Q4 vs. nonexposed = 1.43, 95% CI: 1.08, 1.88; P(trend) = 0.04); and terbufos (RR for Q4 vs. nonexposed = 1.29, 95% CI: 1.02, 1.64; P(trend) = 0.03). The organochlorine insecticide aldrin was also associated with increased risk of aggressive prostate cancer (RR for Q4 vs. nonexposed = 1.49, 95% CI: 1.03, 2.18; P(trend) = 0.02). This analysis has overcome several limitations of previous studies with the inclusion of a large number of cases with relevant exposure and detailed information on use of specific pesticides at 2 points in time. Furthermore, this is the first time specific pesticides are implicated as risk factors for aggressive prostate cancer.
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Affiliation(s)
- Stella Koutros
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Boulevard, EPS 8115, MSC 7240, Rockville, MD 20852, USA.
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Corsini E, Sokooti M, Galli CL, Moretto A, Colosio C. Pesticide induced immunotoxicity in humans: a comprehensive review of the existing evidence. Toxicology 2012; 307:123-35. [PMID: 23116691 DOI: 10.1016/j.tox.2012.10.009] [Citation(s) in RCA: 151] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 09/23/2012] [Accepted: 10/22/2012] [Indexed: 01/04/2023]
Abstract
The immune system can be the target of many chemicals, with potentially severe adverse effects on the host's health. In Western countries pesticides, together with new and modified patterns of exposure to chemicals, have been implicated in the increasing prevalence of diseases associated with alterations of the immune response, such as hypersensitivity reactions, certain autoimmune diseases and cancers. Xenobiotics may initiate, facilitate or exacerbate pathological immune processes, resulting in immunotoxicity by induction of mutations in genes coding for immunoregulatory factors, modifying immune tolerance and activation pathways. The purpose of this article is to update the evidence of pesticide immunotoxicity. Even if experimental data as well as sporadic human studies indicate that some pesticides can affect the immune system, overall, existing epidemiological studies are inadequate to raise conclusions on the immunotoxic risk associated to pesticide exposure. The available studies on the effects of pesticides on human immune system have several limitations including poor indication on exposure levels, multiple chemical exposures, heterogeneity of the approach, and difficulty in giving a prognostic significance to the slight changes often observed. Further studies are necessary, and they should be preferably carried out through comparison of pre and post-exposure findings in the same group of subjects with a matched control group. Attempt should be made to define the prognostic significance of slight changes often observed. Animal and in vitro studies are also important and necessary to scientifically support epidemiological evidences on pesticide-induced immunotoxicity.
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Affiliation(s)
- E Corsini
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Via Balzaretti 9, 20133 Milan, Italy.
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Endocrine-disrupting chemicals: associated disorders and mechanisms of action. JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH 2012; 2012:713696. [PMID: 22991565 PMCID: PMC3443608 DOI: 10.1155/2012/713696] [Citation(s) in RCA: 335] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 05/10/2012] [Accepted: 05/10/2012] [Indexed: 12/21/2022]
Abstract
The incidence and/or prevalence of health problems associated with endocrine-disruption have increased. Many chemicals have endocrine-disrupting properties, including bisphenol A, some organochlorines, polybrominated flame retardants, perfluorinated substances, alkylphenols, phthalates, pesticides, polycyclic aromatic hydrocarbons, alkylphenols, solvents, and some household products including some cleaning products, air fresheners, hair dyes, cosmetics, and sunscreens. Even some metals were shown to have endocrine-disrupting properties. Many observations suggesting that endocrine disruptors do contribute to cancer, diabetes, obesity, the metabolic syndrome, and infertility are listed in this paper. An overview is presented of mechanisms contributing to endocrine disruption. Endocrine disruptors can act through classical nuclear receptors, but also through estrogen-related receptors, membrane-bound estrogen-receptors, and interaction with targets in the cytosol resulting in activation of the Src/Ras/Erk pathway or modulation of nitric oxide. In addition, changes in metabolism of endogenous hormones, cross-talk between genomic and nongenomic pathways, cross talk with estrogen receptors after binding on other receptors, interference with feedback regulation and neuroendocrine cells, changes in DNA methylation or histone modifications, and genomic instability by interference with the spindle figure can play a role. Also it was found that effects of receptor activation can differ in function of the ligand.
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The Interaction between Pesticide Use and Genetic Variants Involved in Lipid Metabolism on Prostate Cancer Risk. J Cancer Epidemiol 2012; 2012:358076. [PMID: 22919386 PMCID: PMC3419400 DOI: 10.1155/2012/358076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Accepted: 04/02/2012] [Indexed: 11/24/2022] Open
Abstract
Background. Lipid metabolism processes have been implicated in prostate carcinogenesis. Since several pesticides are lipophilic or are metabolized via lipid-related mechanisms, they may interact with variants of genes in the lipid metabolism pathway. Methods. In a nested case-control study of 776 cases and 1444 controls from the Agricultural Health Study (AHS), a prospective cohort study of pesticide applicators, we examined the interactions between 39 pesticides (none, low, and high exposure) and 220 single nucleotide polymorphisms (SNPs) in 59 genes. The false discovery rate (FDR) was used to account for multiple comparisons. Results. We found 17 interactions that displayed a significant monotonic increase in prostate cancer risk with pesticide exposure in one genotype and no significant association in the other genotype. The most noteworthy association was for ALOXE3 rs3027208 and terbufos, such that men carrying the T allele who were low users had an OR of 1.86 (95% CI = 1.16–2.99) and high users an OR of 2.00 (95% CI = 1.28–3.15) compared to those with no use of terbufos, while men carrying the CC genotype did not exhibit a significant association. Conclusion. Genetic variation in lipid metabolism genes may modify pesticide associations with prostate cancer; however our results require replication.
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Mullins JK, Loeb S. Environmental exposures and prostate cancer. Urol Oncol 2012; 30:216-9. [DOI: 10.1016/j.urolonc.2011.11.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 11/03/2011] [Accepted: 11/03/2011] [Indexed: 10/28/2022]
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Saquib Q, Attia SM, Siddiqui MA, Aboul-Soud MA, Al-Khedhairy AA, Giesy JP, Musarrat J. Phorate-induced oxidative stress, DNA damage and transcriptional activation of p53 and caspase genes in male Wistar rats. Toxicol Appl Pharmacol 2012; 259:54-65. [DOI: 10.1016/j.taap.2011.12.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 12/04/2011] [Accepted: 12/05/2011] [Indexed: 10/14/2022]
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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: 164] [Impact Index Per Article: 13.7] [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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Barry KH, Koutros S, Andreotti G, Sandler DP, Burdette LA, Yeager M, Beane Freeman LE, Lubin JH, Ma X, Zheng T, Alavanja MCR, Berndt SI. Genetic variation in nucleotide excision repair pathway genes, pesticide exposure and prostate cancer risk. Carcinogenesis 2011; 33:331-7. [PMID: 22102698 DOI: 10.1093/carcin/bgr258] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Previous research demonstrates increased prostate cancer risk for pesticide applicators and pesticide manufacturing workers. Although underlying mechanisms are unknown, human biomonitoring studies indicate increased genetic damage (e.g. chromosomal aberrations) with pesticide exposure. Given that the nucleotide excision repair (NER) pathway repairs a broad range of DNA damage, we evaluated interactions between pesticide exposure and 324 single-nucleotide polymorphisms (SNPs) tagging 27 NER genes among 776 prostate cancer cases and 1444 male controls in a nested case-control study of white Agricultural Health Study pesticide applicators. We determined interaction P values using likelihood ratio tests from logistic regression models and three-level pesticide variables (none/low/high) based on lifetime days of use weighted to an intensity score. We adjusted for multiple comparisons using the false discovery rate (FDR) method. Of the 17 interactions that met FDR <0.2, 3 displayed a monotonic increase in prostate cancer risk with increasing exposure in one genotype group and no significant association in the other group. Men carrying the variant A allele at ERCC1 rs2298881 exhibited increased prostate cancer risk with high versus no fonofos use [odds ratio (OR) 2.98; 95% confidence interval (CI) 1.65-5.39; P(interact) = 3.6 × 10(-4); FDR-adjusted P = 0.11]. Men carrying the homozygous wild-type TT genotype at two correlated CDK7 SNPs, rs11744596 and rs2932778 (r(2) = 1.0), exhibited increased risk with high versus no carbofuran use (OR 2.01; 95% CI 1.31-3.10 for rs11744596; P(interact) = 7.2 × 10(-4); FDR-adjusted P = 0.09). In contrast, we did not observe associations among men with other genotypes at these loci. While requiring replication, our findings suggest a role for NER genetic variation in pesticide-associated prostate cancer risk.
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Affiliation(s)
- Kathryn Hughes Barry
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD 20892-7240, USA.
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Paiva JCG, Cabral IO, Soares BM, Sombra CML, Ferreira JRO, Moraes MO, Cavalcanti BC, Pessoa C. Biomonitoring of rural workers exposed to a complex mixture of pesticides in the municipalities of Tianguá and Ubajara (Ceará state, Brazil): genotoxic and cytogenetic studies. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2011; 52:492-501. [PMID: 21370288 DOI: 10.1002/em.20647] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 12/18/2010] [Accepted: 11/05/2011] [Indexed: 05/07/2023]
Abstract
In recent years, the use of pesticides in agriculture has been steadily increasing, and associations between exposure to agricultural chemicals and DNA damage and cancer have been reported. Brazil is one of the world leaders in pesticide use; however, studies that evaluate the impact of pesticide exposure on cancer incidence and mortality are very scarce in the Brazilian population. The alkaline comet assay and the chromosome aberration (CA) test were used to evaluate primary DNA damage in the peripheral blood lymphocytes of workers exposed to a complex mixture of pesticides in two small rural communities in the municipalities of Tianguá and Ubajara, located in the western part of Ceará State (Northeast Brazil), which are among the largest agricultural areas of the state. The comet assay showed that the damage index and damage frequency observed in the exposed groups were significantly higher in relation to the controls (P < 0.05). On the other hand, no differences were detected regarding structural and numerical CAs in the communities evaluated. Additionally, the observed levels of DNA strand breaks and frequencies of CAs, stratified for exposure time, were not statistically different for individuals of either rural community. Our results suggest that the damages caused by pesticides in our study area were not great enough to induce permanent mutations or to interfere with mitotic apparatus formation; minimal pesticide damages could have undergone cellular repair, explaining the absence of structural and numerical CAs.
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Affiliation(s)
- Jean C G Paiva
- Department of Physiology and Pharmacology, National Laboratory of Experimental Oncology, Federal University of Ceará, Fortaleza, Brazil
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Ferrís-i-Tortajada J, Berbel-Tornero O, Garcia-i-Castell J, López-Andreu J, Sobrino-Najul E, Ortega-García J. Non-dietary environmental risk factors in prostate cancer. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.acuroe.2010.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ferrís-I-Tortajada J, Berbel-Tornero O, Garcia-I-Castell J, López-Andreu JA, Sobrino-Najul E, Ortega-García JA. [Non dietetic environmental risk factors in prostate cancer]. Actas Urol Esp 2011; 35:289-95. [PMID: 21439685 PMCID: PMC5176024 DOI: 10.1016/j.acuro.2010.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 12/21/2010] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The aim is to update and disclose the main environmental risk factors, excluding dietary factors, involved in the etiopathology of prostate cancer. MATERIALS AND METHOD Bibliographic review of the last 25 years of non-dietary environmental risk factors associated with prostate cancer between 1985 and 2010, obtained from MedLine, CancerLit, Science Citation Index and Embase. The search profiles were Environmental Risk Factors/Tobacco/Infectious-Inflammatory Factors/Pesticides/Vasectomy/Occupational Exposures/Chemoprevention Agents/Radiation and Prostate Cancer. RESULTS While some non-dietary environmental risk factors increase the risk of acquiring the disease, others decrease it. Of the former, it is worth mentioning exposal to tobacco smoke, chronic infectious-inflammatory prostatic processes and occupational exposure to cadmium, herbicides and pesticides. The first factors that reduce the risk are the use of chemopreventive drugs (Finasterida, Dutasteride) and exposure to ultraviolet solar radiation. With the current data, a vasectomy does not influence the risk of developing the disease. CONCLUSIONS The slow process of prostate carcinogenesis is the final result of the interaction of constitutional risk and environmental factors. Non-dietary environmental factors play an important role in the etiopathology of this disease. To appropriately assess the risk factors, extensive case studies that include all the possible variables must be analysed.
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Affiliation(s)
- J Ferrís-I-Tortajada
- Unidad de Salud Medioambiental Pediátrica, Unidad de Oncología Pediátrica, Hospital Infantil Universitario La Fe, Valencia, España.
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Weed DL. Meta-Analysis and Causal Inference: A Case Study of Benzene and Non-Hodgkin Lymphoma. Ann Epidemiol 2010; 20:347-55. [DOI: 10.1016/j.annepidem.2010.02.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 02/01/2010] [Accepted: 02/05/2010] [Indexed: 12/20/2022]
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Sawada N, Iwasaki M, Inoue M, Itoh H, Sasazuki S, Yamaji T, Shimazu T, Tsugane S. Plasma organochlorines and subsequent risk of prostate cancer in Japanese men: a nested case-control study. ENVIRONMENTAL HEALTH PERSPECTIVES 2010; 118:659-65. [PMID: 20435560 PMCID: PMC2866682 DOI: 10.1289/ehp.0901214] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2009] [Accepted: 12/17/2009] [Indexed: 05/04/2023]
Abstract
BACKGROUND Although accumulating evidence suggests that exposure to organochlorine pesticides and polychlorinated biphenyls (PCBs) may contribute to the development of prostate cancer, few investigations have used biological samples to classify exposure to specific organochlorines. To our knowledge, this is the first prospective study to investigate the association between blood levels of organochlorines and prostate cancer risk. METHODS We conducted a nested case-control study using data from the Japan Public Health Center-based Prospective (JPHC) Study. A total of 14,203 men 40-69 years old who returned the baseline questionnaire and who provided blood samples were followed from 1990 to 2005. Using a mean follow-up period of 12.8 years, we identified 201 participants who were newly diagnosed with prostate cancer. Two matched controls for each case were selected from the cohort. We used a conditional logistic regression model to estimate the odds ratios (ORs) and 95% confidence intervals (CIs) for prostate cancer in relation to plasma levels of nine organochlorines: PCBs, dichlorodiphenyltrichloroethane (DDT), hexachlorobenzene (HCB), beta-hexachlorocyclohexane (beta-HCH), trans- and cis-nonachlor, oxychlordane, and mirex. RESULTS No statistically significant association with total prostate cancer was seen for any plasma organochlorine, although we did observe an insignificant inverse association for plasma HCB and beta-HCH. Total PCB in plasma was also inversely associated with advanced prostate cancer but without statistical significance. CONCLUSION Our results suggest that no overall association exists between prostate cancer and organochlorines at the levels measured in our study population.
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Affiliation(s)
- Norie Sawada
- Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan.
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41
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Abstract
Approximately one in six men in the United States will develop prostate cancer during their lifetime. Genetic and environmental variables play a role in determining prostate cancer risk. This article highlights the latest evidence regarding the risk factors for prostate cancer. The current screening strategies using prostate-specific antigen and digital rectal examination are also discussed, as well as the limitations of these protocols and potential methods for improving early detection.
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Affiliation(s)
- Stacy Loeb
- Brady Urological Institute, Johns Hopkins Medical Institutions, 600 N Wolfe Street, Marburg 1, Baltimore, MD 21287, USA.
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Landau-Ossondo M, Rabia N, Jos-Pelage J, Marquet LM, Isidore Y, Saint-Aimé C, Martin M, Irigaray P, Belpomme D. Why pesticides could be a common cause of prostate and breast cancers in the French Caribbean Island, Martinique. An overview on key mechanisms of pesticide-induced cancer. Biomed Pharmacother 2009; 63:383-95. [PMID: 19570649 DOI: 10.1016/j.biopha.2009.04.043] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2009] [Accepted: 04/15/2009] [Indexed: 12/13/2022] Open
Abstract
Prostate and breast cancers have become very frequent in Martinique. We previously conducted a multifactorial analysis in the French Caribbean Island, Martinique, in order to elucidate the aetiology of prostate cancer. Using a linear regression analysis, we found that the growth curves of incidence rates for Martinique and metropolitan France have been significantly diverging since 1983. Although a Caribbean genetic susceptibility factor may be involved in prostate carcinogenesis: this factor, because it could not have changed during the observation period, cannot per se account for the growing incidence of this cancer in the island. We therefore suggested that among possible environmental factors, the intensive and prolonged exposure to Carcinogenic, Mutagenic and/or Reprotoxic (CMR) or presumed CMR pesticides may account for the observed growing incidence of prostate cancer and thus may be involved in prostate carcinogenesis. In this study, we further attempt to show that due to their carcinogenic properties, pesticides and especially organochlorine pesticides may in fact be causally implicated in the growing incidence of prostate cancer in Martinique. Also, we suggest that CMR or presumed CMR pesticides may be causally involved in the growing incidence of breast cancer through a common endocrine disruption mechanism. We therefore propose that protective medical recommendations should be immediately set up and carried out by general practitioners, paediatricians, obstetricians, gynaecologists and urologists; and that public health measures of primary precaution and prevention should be urgently taken in close collaboration with health professionals in order to protect population, more especially pregnant women and children, with the final objective perhaps that these medical recommendations and public health measures will stop Martinique's cancer epidemic.
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Affiliation(s)
- M Landau-Ossondo
- Anatomopathology Laboratory, Centre Hospitalier Universitaire de Fort de France, French West Indies, Fort de France, Martinique
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Corsini E, Liesivuori J, Vergieva T, Van Loveren H, Colosio C. Effects of pesticide exposure on the human immune system. Hum Exp Toxicol 2009; 27:671-80. [PMID: 19042949 DOI: 10.1177/0960327108094509] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Epidemiological evidence from Western countries indicates that the prevalence of diseases associated with alterations in the immune response, such as asthma, certain autoimmune diseases and cancer, are increasing to such an extent that it cannot be attributed to improved diagnostics alone. There is some concern that this trend could be, at least, partially attributable to new or modified patterns of exposures to chemicals, including pesticides. The purpose of this article is to review the evidence on pesticide immunotoxicity in humans. Overall, the available data are inadequate to draw firm conclusions on the immunotoxic risk associated with pesticide exposure. The available studies on the effects of pesticides on the human immune system have several limitations, including limited data on exposure levels, heterogeneity of the applied methods, and difficulties in assessing the prognostic significance of observed slight changes and in the interpretation of the reported findings. Further studies are needed and preferably as prospective studies, comparing pre- and post-exposure data in the same group of subjects and including an appropriate non-exposed control group. More knowledge is required regarding the prognostic significance of the small changes observed.
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Affiliation(s)
- E Corsini
- Laboratory of Toxicology, Department of Pharmacological Sciences, University of Milan, Milan, Italy.
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Multigner L, Ndong JR, Oliva A, Blanchet P. [Environmental pollutants and prostate cancer: epidemiological data]. ACTA ACUST UNITED AC 2008; 36:848-56. [PMID: 18693059 DOI: 10.1016/j.gyobfe.2008.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Accepted: 07/06/2008] [Indexed: 10/21/2022]
Abstract
Prostate cancer is the most frequent cancer affecting men in most Western countries. Certain risk factors have been identified (age, family history, ethnic origin), but the aetiology of this cancer remains largely unknown. However, a role for environmental factors is strongly suspected. Questions have been raised concerning the role of the chemical substances generated by human activities in the occurrence of this disease. Diverse studies have consistently demonstrated a higher risk of prostate cancer in agricultural populations than in the general population. The hypothesis that this higher risk is linked to the use of pesticides has been tested in a number of studies, mostly in North America and Europe. However, to date, with a few possible exceptions, it has been impossible to demonstrate a significant association between exposure to pesticides or a chemical family of pesticides and prostate cancer. Studies have also been carried out on the role of exposure to trace metals, such as cadmium, or to pollutants from industry, such as polychlorobiphenyls. However, no firm conclusions have been drawn. Finally, the effect of chemical substances with endocrine disruptor activity on the occurrence of prostate cancer remains largely unexplored in epidemiological studies. In the face of these uncertainties, rigorous studies are required, with objective measurements of exposure, taking into account confounding factors and individual risk factors, making it possible to assess gene-environment interactions.
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Affiliation(s)
- L Multigner
- Inserm U625, université Rennes-1, avenue Général-Leclerc, 35042 Rennes cedex, France.
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Wigle DT, Turner MC, Gomes J, Parent ME. Role of hormonal and other factors in human prostate cancer. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2008; 11:242-259. [PMID: 18368555 DOI: 10.1080/10937400701873548] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
American men have a lifetime risk of about 18% for prostate cancer diagnosis. Large international variations in prostate cancer risks and increased risks among migrants from low- to high-risk countries indicate important roles for environmental factors. Major known risk factors include age, family history, and country/ethnicity. Type 2 diabetes appears to reduce risk, while high birth weight and adult height are linked to increased risk of aggressive prostate cancer. Limited evidence supports an association with a history of sexually transmitted infections. A previous meta-analysis of eight cohort studies indicated no associations with plasma androgen, estrogen, or sex hormone binding globulin (SHBG) levels. However, there were dose-response relationships with baseline plasma testosterone levels in two studies that adjusted for other serum hormones and obesity. Finasteride (a drug that blocks testosterone activation) reduced prostate cancer risk by 25%. Low-frequency genes linked to familial prostate cancer only explain a small fraction of all cases. Sporadic cases were linked to relatively common polymorphisms of genes involved in (1) androgen synthesis, activation, inactivation and excretion, (2) hormone and vitamin D receptors, (3) carcinogen metabolism, and (4) DNA repair. Epidemiologic evidence supports protective roles for dietary selenium, vitamin E, pulses, tomatoes/lycopene, and soy foods, and high plasma 1,25-dihydroxyvitamin D levels. There is inadequate evidence that vegetables, fruit, carotenoids, and vitamins A and C reduce risk and that animal fat, alpha-linoleic acid, meat, coffee, and tea increase risk. Two major cohort studies found dose-response relationships with dietary calcium intake. Total dietary energy intake may enhance risk. Limited evidence supports a protective role for physical activity and elevated risk for farmers and other men with occupational pesticide exposure, particularly to organochlorine compounds and phenoxy herbicides. There is inadequate evidence for a relationship with alcohol or smoking. Most known or suspected external risk factors may act through hormonal mechanisms, but our review found little supporting evidence, and substantial further research is needed.
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Affiliation(s)
- Donald T Wigle
- McLaughlin Centre for Population Health Risk Assessment, Institute of Population Health, University of Ottawa, Ottawa, Ontario, Canada.
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McKinlay R, Plant JA, Bell JNB, Voulvoulis N. Endocrine disrupting pesticides: implications for risk assessment. ENVIRONMENT INTERNATIONAL 2008; 34:168-83. [PMID: 17881056 DOI: 10.1016/j.envint.2007.07.013] [Citation(s) in RCA: 279] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2006] [Revised: 07/26/2007] [Accepted: 07/27/2007] [Indexed: 05/04/2023]
Abstract
Endocrine disrupting (ED) chemicals are compounds that alter the normal functioning of the endocrine system, potentially causing disease or deformity in organisms and their offspring. Pesticides are used widely to kill unwanted organisms in crops, public areas, homes and gardens and medicinally to kill parasites. Many are proven or suspected to be EDs. Ancient physiological similarities between different vertebrate groups suggest that disorders observed in wildlife may indicate risks to humans. This makes accurate risk assessment and effective legislation difficult. In this paper, the hazardous properties of pesticides which are known to have ED properties are reviewed in order to assess the implications for risk assessment. As well as data on sources of exposure in the United Kingdom (UK) an assessment of the evidence on the health effects of ED pesticides is also included. In total, 127 have been identified from the literature and their effects and modes of action are listed in this paper. Using the UK as a case study, the types and quantities of pesticides used, and their methods of application are assessed, along with their potential pathways to humans. In the UK reliable data are available only for agricultural use, so non-agricultural routes of pesticide exposure have been poorly quantified. The exposure of people resident in or visiting rural areas could also have been grossly under-estimated. Material links between ED pesticide use and specific illnesses or deformities are complicated by the multifactorial nature of disease, which can be affected by factors such as diet. Despite these difficulties, a large body of evidence has accumulated linking specific conditions to ED pesticides in wildlife and humans. A more precautionary approach to the use of ED pesticides, especially for non-essential purposes is proposed.
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Affiliation(s)
- R McKinlay
- Centre for Environmental Policy, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom
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Sass-Kortsak AM, Purdham JT, Kreiger N, Darlington G, Lightfoot NE. Occupational risk factors for prostate cancer. Am J Ind Med 2007; 50:568-76. [PMID: 17620275 DOI: 10.1002/ajim.20495] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Occupational risk factors for prostate cancer have been investigated with inconsistent findings. METHODS This was a population-based case-control study of men in Northeastern Ontario, Canada. Cases (n = 760) were from the Ontario Cancer Registry, 50 to 84 years old, and diagnosed with prostate cancer between 1995 and 1998. Age-frequency matched controls (n = 1,632) were obtained from telephone listings. A questionnaire yielded information on occupational history and self-reported exposures to a list of occupational hazards. Exposures to these hazards were assessed by an occupational hygienist. RESULTS An odds ratio estimate (OR) of 1.21 (95 percent confidence interval (% CI) 1.01, 1.46) was found for employment in trades, transport and equipment operators and related occupations, possibly related to exposure to whole-body vibration (OR = 1.38, 95% CI 1.07, 1.78). For the highest quartile of lifetime cumulative workplace physical activity an OR of 1.33 (95% CI 1.02, 1.74) was found. No statistically significant associations were found for any other occupational category or exposure. CONCLUSIONS This study does not provide strong evidence for significant occupational risk factors for prostate cancer. However, whole-body vibration exposures, as well as physical activity, may be worth pursuing in future occupational studies.
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Harlap S, Friedlander Y, Barchana M, Calderon R, Deutsch L, Kleinhaus KR, Perrin MC, Tiram E, Yanetz R, Paltiel O. Late fetal death in offspring and subsequent incidence of prostate cancer in fathers: the Jerusalem Perinatal Study cohort. Prostate 2007; 67:989-98. [PMID: 17440938 DOI: 10.1002/pros.20591] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Little is known of the causes of prostate cancer and few previous studies have investigated men's reproductive histories in relation to this disease. We sought to determine whether risk of prostate cancer was altered in men who had fathered stillborn offspring. METHODS We studied the incidence of prostate cancer (N = 252) in a cohort of 15,268 fathers followed for 28-41 years from the birth of a live offspring, whose wives participated in one of two separate surveys of outcomes of previous births. Proportional hazards models were used to estimate relative risks (RR) associated with previous stillbirths, controlling for changes in incidence over time, social and occupational factors. RESULTS The 543 men with one or more stillborn offspring experienced an increased risk of prostate cancer (adjusted RR = 1.87, 95% confidence interval = 1.17-3.00, P = 0.0095), compared to men without stillbirths. With one reported stillbirth, the RR was 1.68 (0.99-2.84); with two or more, the RR was 3.29 (1.22-8.88). Results were consistent in men whose wives were interviewed in 1965-1968 and 1974-1976. In 100 fathers with no male offspring and at least one stillbirth the RR was 4.04 (1.87-8.71, P = 0.0004). CONCLUSIONS These findings should be considered hypothesis-generating and require confirmation in other studies. They suggest that stillbirth and prostate cancer may have shared environmental causes; alternatively, genetic susceptibility to prostate cancer might increase the risk of a stillbirth in offspring.
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Affiliation(s)
- S Harlap
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA.
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50
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Abstract
Commentary on paper by Meyer et al (see page 155)
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Affiliation(s)
- Vilhjalmur Rafnsson
- Department of Preventive Medicine, University of Iceland, Neshaga 16, 107 Reykjavík, Iceland.
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