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Chen Y, Van Deventer D, Nianogo R, Vinceti M, Kang W, Cockburn M, Federman N, Heck JE. Maternal Exposure to Heavy Metals From Industrial Sources During Pregnancy and Childhood Cancer Risk in California. J Occup Environ Med 2024; 66:714-721. [PMID: 38845100 PMCID: PMC11371530 DOI: 10.1097/jom.0000000000003160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
OBJECTIVE The study investigated maternal exposure to heavy metals from industrial sources during pregnancy as potential risk factors for childhood cancer. METHODS Cases ages 0-19 were identified from California Cancer Registry. Controls (20:1 ratio) were randomly selected from California Birth Registry, frequency-matched by birth year (1998-2016). We estimated maternal exposure to lead, nickel, and cobalt in ambient air from the Toxics Release Inventory. We examined "ever/never" and "high/low" exposures categorized by median exposure. Models were adjusted for maternal age, race/ethnicity, method of payment for prenatal care, neighborhood socioeconomic status, and urban/rural residence. RESULTS Among highly exposed persons, lead was associated with an increased teratoma risk (adjusted odds ratio [aOR]: 1.52; 95% confidence interval [CI]: 0.97, 2.37), whereas nickel was associated with an increased rhabdomyosarcoma risk (aOR: 1.45; 95% CI: 1.03, 2.04). Cobalt was associated with an increased glioma risk (aOR: 2.25; 95% CI: 1.39, 3.65) among ever-exposed persons. Inverse associations were found between Wilms tumor and nickel among the ever exposed and highly exposed (ever: aOR: 0.75; 95% CI: 0.59, 0.96; high: aOR: 0.64; 95% CI: 0.45, 0.93). CONCLUSIONS Findings suggest that air pollution from heavy metals released by industrial sources may elevate childhood cancer risk.
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Affiliation(s)
- Yixin Chen
- From the Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA (Y.C., D.V.D., R.N., J.E.H.); California Center for Population Research, University of California, Los Angeles, Los Angeles, CA (R.N.); CREAGEN-Environmental, Genetic, and Nutritional Epidemiology Research Center, Section of Public Health, Department of Biomedical, Metabolic, and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy (M.V.); Department of Epidemiology, School of Public Health, Boston University, Boston, MA (M.V.); Department of Geography and the Environment, University of North Texas, Denton, TX (W.K.); Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA (M.C.); Department of Pediatrics, Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA (N.F.); and College of Health and Public Service, University of North Texas, Denton, TX (J.E.H.)
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Chen Y, Paul KC, Walker DI, Jones DP, Wang X, Ritz BR, Heck JE. Neonatal per- and polyfluoroalkyl substance exposure in relation to retinoblastoma. ENVIRONMENTAL RESEARCH 2024; 240:117435. [PMID: 37866539 PMCID: PMC10842486 DOI: 10.1016/j.envres.2023.117435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/29/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
BACKGROUND Neonatal per- and polyfluoroalkyl substance (PFAS) exposure can disrupt hormonal homeostasis and induce neuro- and immunotoxicity in children. In this exploratory study, we investigated associations between PFAS levels in neonatal dried blood spots and retinoblastoma risk. MATERIALS AND METHODS This study included 501 retinoblastoma cases born from 1983 to 2011 and 899 controls frequency-matched by birth year (20:1 matching ratio), born to 755 US-born and 366 Mexico-born mothers in California. Perfluorooctanesulfonic acid (PFOS), perflurooctanoic acid (PFOA), and perfluorononanoic acid (PFNA) feature intensities were identified from neonatal blood spots from California newborn Genetic Disease Screening Program. Using logistic regression, we assessed whether an interquartile range (IQR) increase of PFAS levels or having above-mean levels of PFAS in blood affects retinoblastoma risk overall or its subtypes (i.e., unilateral, bilateral). We assessed children of US-born and Mexico-born mothers, separately. RESULTS AND DISCUSSION Among all children, above-mean PFOS levels at birth increased the odds of retinoblastoma overall by 29% (95% Confidence Interval (CI): 1.00, 1.67) and unilateral retinoblastoma by 42% (95% CI: 1.03, 1.97). For children of Mexico-born mothers, we estimated the highest odds of retinoblastoma overall (adjusted odds ratio (aOR): 1.67; 95% CI: 1.06, 2.66) and bilateral retinoblastoma (aOR: 2.06; 95% CI: 1.12, 3.92) with above-mean PFOS levels. Among children of US-born mothers, higher PFOS levels increased the odds of unilateral retinoblastoma by 15% (95% CI: 0.99, 1.35) for each IQR increase and by 71% among children with above-mean PFOS levels (95% CI: 1.04, 2.90). In addition, for children of US-born mothers, PFOA increased the odds of retinoblastoma overall (aOR: 1.41; 95% CI: 1.00, 2.02 for above-mean levels, aOR: 1.06; 95% CI: 0.98, 1.16 per IQR increase). PFNA was not associated with retinoblastoma risk. CONCLUSIONS Our results suggested that PFOS and PFOA might contribute to retinoblastoma risk in children born in California.
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Affiliation(s)
- Yixin Chen
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA
| | - Kimberly C Paul
- Department of Neurology, David Geffen School of Medicine, Los Angeles, CA, USA
| | - Douglas I Walker
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Dean P Jones
- Clinical Biomarkers Laboratory, Division of Pulmonary, Allergy, and Critical Care Medicine, School of Medicine, Emory University, Atlanta, GA, USA; Department of Medicine, Emory University, Atlanta, GA, USA
| | - Xuexia Wang
- Department of Biostatistics, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, USA
| | - Beate R Ritz
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA; Department of Neurology, David Geffen School of Medicine, Los Angeles, CA, USA
| | - Julia E Heck
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA; College of Health and Public Service, University of North Texas, Denton, TX, USA.
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3
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He D, Yan Q, Uppal K, Walker DI, Jones DP, Ritz B, Heck JE. Metabolite Stability in Archived Neonatal Dried Blood Spots Used for Epidemiologic Research. Am J Epidemiol 2023; 192:1720-1730. [PMID: 37218607 PMCID: PMC11004922 DOI: 10.1093/aje/kwad122] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 09/01/2022] [Accepted: 05/17/2023] [Indexed: 05/24/2023] Open
Abstract
Epidemiologic studies of low-frequency exposures or outcomes using metabolomics analyses of neonatal dried blood spots (DBS) often require assembly of samples with substantial differences in duration of storage. Independent assessment of stability of metabolites in archived DBS will enable improved design and interpretation of epidemiologic research utilizing DBS. Neonatal DBS routinely collected and stored as part of the California Genetic Disease Screening Program between 1983 and 2011 were used. The study population included 899 children without cancer before age 6 years, born in California. High-resolution metabolomics with liquid-chromatography mass spectrometry was performed, and the relative ion intensities of common metabolites and selected xenobiotic metabolites of nicotine (cotinine and hydroxycotinine) were evaluated. In total, we detected 26,235 mass spectral features across 2 separate chromatography methods (C18 hydrophobic reversed-phase chromatography and hydrophilic-interaction liquid chromatography). For most of the 39 metabolites related to nutrition and health status, we found no statistically significant annual trends across the years of storage. Nicotine metabolites were captured in the DBS with relatively stable intensities. This study supports the usefulness of DBS stored long-term for epidemiologic studies of the metabolome. -Omics-based information gained from DBS may also provide a valuable tool for assessing prenatal environmental exposures in child health research.
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Affiliation(s)
| | | | | | | | | | | | - Julia E Heck
- Correspondence to Dr. Julia E. Heck, College of Health and Public Service, UNT 1155 Union Circle #311340, Denton, TX 76203-5017 (e-mail: )
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4
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Hüls A, Van Cor S, Christensen GM, Li Z, Liu Y, Shi L, Pearce JL, Bayakly R, Lash TL, Ward K, Switchenko JM. Environmental, social and behavioral risk factors in association with spatial clustering of childhood cancer incidence. Spat Spatiotemporal Epidemiol 2023; 45:100582. [PMID: 37301597 PMCID: PMC10258443 DOI: 10.1016/j.sste.2023.100582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/16/2022] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
Childhood cancer incidence is known to vary by age, sex, and race/ethnicity, but evidence is limited regarding external risk factors. We aim to identify harmful combinations of air pollutants and other environmental and social risk factors in association with the incidence of childhood cancer based on 2003-2017 data from the Georgia Cancer Registry. We calculated the standardized incidence ratios (SIR) of Central Nervous System (CNS) tumors, leukemia and lymphomas based on age, gender and ethnic composition in each of the 159 counties in Georgia, USA. County-level information on air pollution, socioeconomic status (SES), tobacco smoking, alcohol drinking and obesity were derived from US EPA and other public data sources. We applied two unsupervised learning tools (self-organizing map [SOM] and exposure-continuum mapping [ECM]) to identify pertinent types of multi-exposure combinations. Spatial Bayesian Poisson models (Leroux-CAR) were fit with indicators for each multi-exposure category as exposure and SIR of childhood cancers as outcomes. We identified consistent associations of environmental (pesticide exposure) and social/behavioral stressors (low socioeconomic status, alcohol) with spatial clustering of pediatric cancer class II (lymphomas and reticuloendothelial neoplasms), but not for other cancer classes. More research is needed to identify the causal risk factors for these associations.
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Affiliation(s)
- Anke Hüls
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA; Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
| | - Sara Van Cor
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Grace M Christensen
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Zhenjiang Li
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Yuxi Liu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Liuhua Shi
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - John L Pearce
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Rana Bayakly
- Georgia Department of Public Health, Atlanta, GA, USA
| | - Timothy L Lash
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Kevin Ward
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jeffrey M Switchenko
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
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Awounou D, Lacour B, Desandes E, Guissou S, Cassoux N, Doz F, Dufour C, Minard-Colin V, Schleiermacher G, Taque S, Verschuur A, Clavel J, Goujon S. Seasonality of main childhood embryonal tumours and rhabdomyosarcoma, France, 2000-2015. Cancer Med 2023; 12:8789-8803. [PMID: 36726302 PMCID: PMC10134357 DOI: 10.1002/cam4.5624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/13/2022] [Accepted: 01/03/2023] [Indexed: 02/03/2023] Open
Abstract
Few studies have investigated the seasonal patterns of embryonal tumours. Based on data from the French National Registry of Childhood Cancers, the present study aimed to investigate seasonal variations in embryonal tumour incidence rates by month of birth and by month of diagnosis. The study included 6635 primary embryonal tumour cases diagnosed before the age of 15 years over the period 2000-2015 in mainland France. Assuming monthly variations in incidence rates were homogeneous over 2000-2015, we used a Poisson regression model to test for overall heterogeneity in standardised incidence ratios (SIRs) by month of birth or diagnosis. The seasonal scan statistic method was used to detect monthly excesses or deficits of embryonal tumour cases over the whole study period. The annual reproducibility of the observed monthly variations was formally tested. An overall heterogeneity in incidence rates by month of birth was observed for rhabdomyosarcoma in boys only. Based on the month of diagnosis, a seasonality was evidenced for unilateral retinoblastoma, with a lower incidence rate in the summer (SIRJul-Aug = 0.68, 95% CI = 0.52-0.87), whilst the incidence rate of rhabdomyosarcoma tended to be lower in August (SIRAug = 0.68, 95% CI = 0.52-0.89). No seasonality was detected for the other embryonal tumour groups by month of birth or month of diagnosis. This study is one of the largest to have investigated the seasonality of childhood embryonal tumours. The study showed a seasonal variation in the incidence rates by month of diagnosis for unilateral retinoblastoma and rhabdomyosarcoma. Our findings are likely to reflect a delay in consultation during the summer months. However, the role of seasonally varying environmental exposures cannot be ruled out.
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Affiliation(s)
- Danielle Awounou
- Inserm, UMR 1153 Centre of Research in Epidemiology and StatisticS (CRESS), Epidemiology of childhood and adolescent cancers team (EPICEA), Villejuif, France.,Université Paris Cité, Paris, France
| | - Brigitte Lacour
- Inserm, UMR 1153 Centre of Research in Epidemiology and StatisticS (CRESS), Epidemiology of childhood and adolescent cancers team (EPICEA), Villejuif, France.,Université Paris Cité, Paris, France.,French National Registry of Childhood Solid Tumours (RNTSE), CHU Nancy, Nancy, France
| | - Emmanuel Desandes
- Inserm, UMR 1153 Centre of Research in Epidemiology and StatisticS (CRESS), Epidemiology of childhood and adolescent cancers team (EPICEA), Villejuif, France.,Université Paris Cité, Paris, France.,French National Registry of Childhood Solid Tumours (RNTSE), CHU Nancy, Nancy, France
| | - Sandra Guissou
- Inserm, UMR 1153 Centre of Research in Epidemiology and StatisticS (CRESS), Epidemiology of childhood and adolescent cancers team (EPICEA), Villejuif, France.,Université Paris Cité, Paris, France.,French National Registry of Childhood Solid Tumours (RNTSE), CHU Nancy, Nancy, France
| | - Nathalie Cassoux
- Université Paris Cité, Paris, France.,Department of Surgical Oncology, Institut Curie, Paris, France
| | - François Doz
- Université Paris Cité, Paris, France.,SIREDO Centre (Care, Innovation, Research In Pediatric, Adolescent and Young Adult Oncology), Institut Curie, Paris, France
| | - Christelle Dufour
- Department of Paediatric and Adolescent Oncology, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France
| | - Véronique Minard-Colin
- Department of Paediatric and Adolescent Oncology, Institut Gustave Roussy, Université Paris Saclay, Villejuif, France.,Inserm, UMR 1015, Université Paris Saclay, Villejuif, France
| | - Gudrun Schleiermacher
- SIREDO Centre (Care, Innovation, Research In Pediatric, Adolescent and Young Adult Oncology), Institut Curie, Paris, France
| | - Sophie Taque
- Department of Paediatrics, CHU Rennes, Rennes, France
| | - Arnauld Verschuur
- Department of Paediatric Haematology, Immunology and Oncology, Children Hospital of La Timone, APHM, Marseille, France
| | - Jacqueline Clavel
- Inserm, UMR 1153 Centre of Research in Epidemiology and StatisticS (CRESS), Epidemiology of childhood and adolescent cancers team (EPICEA), Villejuif, France.,Université Paris Cité, Paris, France.,French National Registry of Childhood Haematological Malignancies (RNHE), Villejuif, France
| | - Stéphanie Goujon
- Inserm, UMR 1153 Centre of Research in Epidemiology and StatisticS (CRESS), Epidemiology of childhood and adolescent cancers team (EPICEA), Villejuif, France.,Université Paris Cité, Paris, France.,French National Registry of Childhood Haematological Malignancies (RNHE), Villejuif, France
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Thompson S, Ritz B, Cockburn M, Heck JE. Prenatal ambient pesticide exposure and childhood retinoblastoma. Int J Hyg Environ Health 2022; 245:114025. [PMID: 36037576 PMCID: PMC9901366 DOI: 10.1016/j.ijheh.2022.114025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 07/28/2022] [Accepted: 08/12/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Retinoblastoma is a rare tumor of the retina, most commonly found in young children. Due to the rarity of this childhood cancer, few studies have been able to examine prenatal pesticide exposure as a risk factor. OBJECTIVE To examine the relationship between childhood retinoblastoma and prenatal exposure to pesticides through residential proximity to agricultural pesticide applications. METHODS We conducted a population-based case-control study using cases aged 5 and younger identified from the California Cancer Registry, and controls randomly selected from California birth certificates. Frequency matching cases to controls by age resulted in 221 cases of unilateral retinoblastoma and 114 cases of bilateral retinoblastoma, totaling 335 cases and 123,166 controls. Based on addresses from birth certificates we employed Pesticide Use Reports and land use information within a geographic information system approach to individually assess exposures to specific pesticides within 4000 m of the residence reported on birth certificates. The associations between retinoblastoma (all types combined and stratified by laterality) and individual pesticides were expressed as odds ratios estimates obtained from unconditional logistic regression models including a single pesticide, and from a hierarchical logistic regression model including all pesticides. RESULTS We found that exposures to acephate (OR: 1.70, 95% CI: 1.20, 2.41) and bromacil (OR: 1.87, 95% CI: 1.07, 3.26) were associated with increased risk for unilateral retinoblastoma. In addition to acephate, we found that pymetrozine (OR: 1.45, 95% CI: 1.00, 2.08) and kresoxim-methyl (OR: 1.60, 95% CI: 1.00, 2.56) were associated with retinoblastoma (all types combined). CONCLUSION Our findings suggest that certain types of prenatal ambient pesticide exposure from residing near agricultural fields may play a role in the development of childhood retinoblastoma.
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Affiliation(s)
- Shiraya Thompson
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA, 90095-1772, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA, 90095-1772, USA
| | - Myles Cockburn
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001, N. Soto Street, Suite 318-A, Los Angeles, CA, USA
| | - Julia E. Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA, 90095-1772, USA,Jonsson Comprehensive Cancer Center, University of California, Box 951781, Los Angeles, CA, 90095-1781, USA,College of Health and Public Service, University of North Texas, 1155 Union Circle #311340, Denton, TX, 76203-5017, USA,Center for Racial and Ethnic Equity in Health and Society (CREEHS), 1155 Union Circle, Denton, TX, 76201, USA,Corresponding author.1155 Union Circle #311340, Denton, TX, 76203-5017, USA. (J.E. Heck)
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Chen WQ, Zhang XY. 1,3-Butadiene: a ubiquitous environmental mutagen and its associations with diseases. Genes Environ 2022; 44:3. [PMID: 35012685 PMCID: PMC8744311 DOI: 10.1186/s41021-021-00233-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/27/2021] [Indexed: 01/09/2023] Open
Abstract
1,3-Butadiene (BD) is a petrochemical manufactured in high volumes. It is a human carcinogen and can induce lymphohematopoietic cancers, particularly leukemia, in occupationally-exposed workers. BD is an air pollutant with the major environmental sources being automobile exhaust and tobacco smoke. It is one of the major constituents and is considered the most carcinogenic compound in cigarette smoke. The BD concentrations in urban areas usually vary between 0.01 and 3.3 μg/m3 but can be significantly higher in some microenvironments. For BD exposure of the general population, microenvironments, particularly indoor microenvironments, are the primary determinant and environmental tobacco smoke is the main contributor. BD has high cancer risk and has been ranked the second or the third in the environmental pollutants monitored in most urban areas, with the cancer risks exceeding 10-5. Mutagenicity/carcinogenicity of BD is mediated by its genotoxic metabolites but the specific metabolite(s) responsible for the effects in humans have not been determined. BD can be bioactivated to yield three mutagenic epoxide metabolites by cytochrome P450 enzymes, or potentially be biotransformed into a mutagenic chlorohydrin by myeloperoxidase, a peroxidase almost specifically present in neutrophils and monocytes. Several urinary BD biomarkers have been developed, among which N-acetyl-S-(4-hydroxy-2-buten-1-yl)-L-cysteine is the most sensitive and is suitable for biomonitoring BD exposure in the general population. Exposure to BD has been associated with leukemia, cardiovascular disease, and possibly reproductive effects, and may be associated with several cancers, autism, and asthma in children. Collectively, BD is a ubiquitous pollutant that has been associated with a range of adverse health effects and diseases with children being a subpopulation with potentially greater susceptibility. Its adverse effects on human health may have been underestimated and more studies are needed.
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Affiliation(s)
- Wan-Qi Chen
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xin-Yu Zhang
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Orjuela-Grimm M, Carreño SB, Liu X, Ruiz A, Medina P, Ramirez Ortiz MA, Rendon JR, Molina NCL, Pinilla H, Hinojosa D, Rodriguez L, Connor AO, Rodriguez FM, Castañeda MVP, Cabrera-Muñoz L. Sunlight exposure in infancy decreases risk of sporadic retinoblastoma, extent of intraocular disease. Cancer Rep (Hoboken) 2021; 4:e1409. [PMID: 33960746 PMCID: PMC8714544 DOI: 10.1002/cnr2.1409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/01/2021] [Accepted: 04/09/2021] [Indexed: 12/28/2022] Open
Abstract
Background Prior ecologic studies suggest that UV exposure through sunlight to the retina might contribute to increased retinoblastoma incidence. Aims Our study objectives were (1) to examine the relationship between exposure to sunlight during postnatal retinal development (prior to diagnosis of sporadic disease) and the risk of retinoblastoma, and (2) to examine the relationship between sun exposure during postnatal retinal development, and the extent of disease among children with unilateral and bilateral retinoblastoma. Methods and results We interviewed 511 mothers in the EpiRbMx case‐control study about their child's exposure to sunlight during postnatal retinal cell division by examining three time periods prior to Rtb diagnosis coinciding with developmental stages in which outdoor activities vary. Weekly sun exposure was compared by age period, between unilateral (n = 259), bilateral (n = 120), and control (n = 132) children, accounting for two factors affecting UV exposure: residential elevation and reported use of coverings to shield eyes. For cases, association between sunlight exposure and clinical stage was examined by laterality at each age period. After adjusting for maternal education and elevation, sun exposure was lower in cases than controls in all three age periods especially during the first 6 months, and in children 12–23 months whose mothers did not cover their eyes when outdoors. In children diagnosed after 12 months of age, sun exposure during the second year of life (age 12–23 months) appeared inversely correlated (r = −0.25) with more advanced intraocular disease in bilateral Rtb children after adjusting for maternal education, residential elevation, and age of diagnosis (p < .09) consistent with effects of Vitamin D exposure on intraocular spread in earlier transgenic murine models of retinoblastoma, and suggesting potential chemopreventive strategies. Conclusion Sun exposure in early childhood is protective for retinoblastoma and may decrease degree of intraocular spread in children with bilateral Rtb.
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Affiliation(s)
- Manuela Orjuela-Grimm
- Mailman School of Public Health, Department of Epidemiology, Columbia University Medical Center, New York, New York, USA.,Department of Pediatrics (Division of Pediatric Hematology, Oncology, and Stem Cell Transplantation), Columbia University Medical Center, New York, New York, USA
| | - Silvia Bhatt Carreño
- Mailman School of Public Health, Department of Epidemiology, Columbia University Medical Center, New York, New York, USA
| | - Xinhua Liu
- Mailman School of Public Health, Department of Biostatistics, Columbia University Medical Center, New York, New York, USA
| | - Ambar Ruiz
- Mailman School of Public Health, Department of Epidemiology, Columbia University Medical Center, New York, New York, USA
| | - Paola Medina
- Mailman School of Public Health, Department of Epidemiology, Columbia University Medical Center, New York, New York, USA
| | - Marco A Ramirez Ortiz
- Department of Ophthalmology, Hospital Infantil de Mexico, Federico Gomez, Mexico City, Mexico
| | - Josefina Romero Rendon
- Centro Medico Nacional Siglo XXI, Instituto Mexicano de Seguro Social, Hospital de Pediatria, Mexico City, Mexico
| | | | - Hector Pinilla
- Mailman School of Public Health, Department of Epidemiology, Columbia University Medical Center, New York, New York, USA
| | - Daniela Hinojosa
- Mailman School of Public Health, Department of Epidemiology, Columbia University Medical Center, New York, New York, USA
| | - Laura Rodriguez
- Mailman School of Public Health, Department of Epidemiology, Columbia University Medical Center, New York, New York, USA
| | - Anita O' Connor
- Mailman School of Public Health, Department of Environmental Health Science, Columbia University Medical Center, New York, New York, USA
| | - Fabiola Mejia Rodriguez
- Centro de Investigacion de Nutricion y Salud, Instituto Nacional de Salud Publica, Cuernavaca, Mexico
| | - M Veronica Ponce Castañeda
- Centro Medico Nacional Siglo XXI, Instituto Mexicano de Seguro Social, Hospital de Pediatria, Mexico City, Mexico
| | - Lourdes Cabrera-Muñoz
- Department of Pathology, Hospital Infantil de Mexico, Federico Gomez, Mexico City, Mexico
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9
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Omidakhsh N, Hansen J, Ritz B, Coleman AL, McKean-Cowdin R, Olsen J, Heck JE. Parental Occupation and Risk of Childhood Retinoblastoma in Denmark. J Occup Environ Med 2021; 63:256-261. [PMID: 33395168 PMCID: PMC8259454 DOI: 10.1097/jom.0000000000002120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Retinoblastoma is the most common primary intraocular tumor affecting children. We examine the role of parental occupational exposures and risk of retinoblastoma among offspring. METHODS Our population-based case-control study linked data from four nationwide Danish registries and included all cases of retinoblastoma diagnosed in Danish children (<5 y, n = 144) between 1975 and 2014. We focused on two biologically relevant time periods: 90 days preconception to conception for fathers; conception to birth for mothers. Parents were grouped into major industry headings created from Danish industry codes. RESULTS We observed increased risk of all retinoblastoma for children of fathers in the food and drink industry and iron and metal industry. Bilateral disease was associated with paternal work in manufacturing and land transportation. CONCLUSION Our results suggest that some occupational exposures may increase the risk of childhood sporadic retinoblastoma.
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Affiliation(s)
- Negar Omidakhsh
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Johnni Hansen
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
- Department of Environmental Health Sciences, School of Public Health, University of California, Los Angeles, CA, USA
| | - Anne L. Coleman
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
- Department of Ophthalmology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Roberta McKean-Cowdin
- Department of Preventive Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jorn Olsen
- Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark
| | - Julia E. Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
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10
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Lupo PJ, Spector LG. Cancer Progress and Priorities: Childhood Cancer. Cancer Epidemiol Biomarkers Prev 2020; 29:1081-1094. [DOI: 10.1158/1055-9965.epi-19-0941] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/18/2019] [Accepted: 03/09/2020] [Indexed: 11/16/2022] Open
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Raaschou-Nielsen O, Hvidtfeldt UA, Roswall N, Hertel O, Poulsen AH, Sørensen M. Ambient benzene at the residence and risk for subtypes of childhood leukemia, lymphoma and CNS tumor. Int J Cancer 2018; 143:1367-1373. [PMID: 29633247 DOI: 10.1002/ijc.31421] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 11/10/2022]
Abstract
Exposure to benzene increases the risk for acute myeloid leukemia and possibly other types of cancer in adults. For children, only limited evidence about benzene and cancer exists. A few studies have indicated that benzene may increase risk for some subtypes of childhood cancer but not for others. We aimed to investigate if outdoor levels of benzene at the residence increase the risk for subtypes of leukemia, lymphoma and CNS tumor in children. We identified 1,989 children diagnosed with leukemia, lymphoma or CNS tumor during 1968-1991 in the Danish Cancer Registry and randomly selected 5,506 control children from the Danish population, matched on sex, age and calendar time. We traced residential history of all children from 9 months before birth to time of diagnosis, calculated outdoor benzene concentration at all addresses and summarized cumulative exposure over fetal and childhood periods separately. We used conditional logistic regression for the statistical analyses. Benzene exposure during childhood above the 90th percentile was associated with relative risks for acute lymphocytic leukemia (ALL) and acute myeloid leukemia (AML) of 1.0 (95% confidence intervals (CI): 0.6-1.7) and 1.9 (95% CI: 0.3-11.1), respectively, when compared with exposure levels below the median. For CNS tumors, there was a tendency of lower risk for ependymoma and higher risk for medulloblastoma in association with higher exposure. In conclusion, benzene was associated with higher risk for childhood AML, but not ALL, which is consistent with the few previous studies.
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Affiliation(s)
- Ole Raaschou-Nielsen
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100, Copenhagen Ø, Denmark.,Department of Environmental Science, Aarhus University, Frederiksborgvej 399, DK-4000, Roskilde, Denmark
| | - Ulla A Hvidtfeldt
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100, Copenhagen Ø, Denmark
| | - Nina Roswall
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100, Copenhagen Ø, Denmark
| | - Ole Hertel
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, DK-4000, Roskilde, Denmark
| | - Aslak H Poulsen
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100, Copenhagen Ø, Denmark
| | - Mette Sørensen
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100, Copenhagen Ø, Denmark
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12
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Park AS, Ritz B, Ling C, Cockburn M, Heck JE. Exposure to ambient dichloromethane in pregnancy and infancy from industrial sources and childhood cancers in California. Int J Hyg Environ Health 2017; 220:1133-1140. [PMID: 28720343 PMCID: PMC5572480 DOI: 10.1016/j.ijheh.2017.06.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 06/06/2017] [Accepted: 06/21/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND The incidence of childhood cancers has been increasing and environmental exposure to air toxics has been suggested as a possible risk factor. This study aims to explore ambient exposure to dichloromethane (methylene chloride). METHODS We frequency matched by birth year approximately 20 cancer-free controls identified from birth records to all childhood cancers ages 0-5 in the California Cancer Registry diagnosed from 1988 to 2012; i.e. 13,636 cases and a total of 270,673 controls. Information on industrial releases of dichloromethane within 3km of birth addresses was retrieved from mandatory industry reports to the EPA's Toxics Release Inventory (TRI). We derived exposure to dichloromethane within close vicinity of birth residences using several modeling techniques including unconditional logistic regression models with multiple buffer distances, inverse distance weighting, and quadratic decay models. RESULTS We observed elevated risks for germ cell tumors [Odds Ratio (OR): 1.52, 95% Confidence Interval (CI) 1.11, 2.08], particularly teratomas (OR: 2.08, 95% CI 1.38-3.13), and possible increased risk for acute myeloid leukemias (AML) (OR: 1.64, 95% CI 1.15-2.32 in the quadratic decay model). Risk estimates were similar in magnitude whether releases occurred in pregnancy or the child's first year of life. CONCLUSION Our findings suggest that exposure to industrial dichloromethane releases may be a risk factor for childhood germ cell tumors, teratomas, and possibly AML.
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Affiliation(s)
- Andrew S Park
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA 90095-1772, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA 90095-1772, USA
| | - Chenxiao Ling
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA 90095-1772, USA
| | - Myles Cockburn
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Suite 318-A, Los Angeles, CA, USA; Department of Epidemiology, Colorado School of Public Health, University of Colorado, 13001 East 17th Place, Aurora, CO 80045, USA; Cancer Prevention and Control Program, Colorado Comprehensive Cancer Center, University of Colorado, 13001 East 17th Place, Aurora, CO 80045, USA
| | - Julia E Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA 90095-1772, USA.
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13
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Omidakhsh N, Ganguly A, Bunin GR, von Ehrenstein OS, Ritz B, Heck JE. Residential Pesticide Exposures in Pregnancy and the Risk of Sporadic Retinoblastoma: A Report From the Children's Oncology Group. Am J Ophthalmol 2017; 176:166-173. [PMID: 28131887 PMCID: PMC5376525 DOI: 10.1016/j.ajo.2017.01.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 11/18/2022]
Abstract
PURPOSE To examine whether parental pesticide exposure contributes to the development of sporadic retinoblastoma. DESIGN Case-control study. METHODS Data were collected by a large multicenter study of sporadic retinoblastoma in which parents of 99 unilateral and 56 bilateral age-matched case-control pairs were interviewed by telephone. Retrospective exposure information was collected on the type, location, timing, and frequency of residential pesticide use. We used conditional logistic regression analyses to estimate odds ratios for maternal pesticide exposure in the month before or during pregnancy and to assess whether the type of product, and the circumstances under which it was applied, were associated with risk of disease. RESULTS Unilateral retinoblastoma was associated with parental insecticide use (odds ratio [OR], 2.8; confidence interval [CI], 1.1-6.7) and the use of professional lawn or landscape services (OR, 2.8; CI, 1.0-8.2). For bilateral disease we observed large point estimates for several exposures but the small number of cases rendered these results uninformative (ie, resulted in wide confidence intervals). Whether parents used the pesticide inside vs outside the home did not appear to modify risk estimates for unilateral retinoblastoma (OR, 2.5; CI, 0.9-7.0 vs OR, 2.5; CI, 1.0-6.5), nor did the type, frequency, timing related to pregnancy, or applicator of pesticide used influence estimates to an appreciable degree for disease. CONCLUSIONS Our results suggest that parental pesticide exposure before or during pregnancy may play a role in the development of childhood retinoblastoma. Retrospectively collected exposure data introduces the possibility of recall bias; therefore, results should be interpreted cautiously until additional studies are conducted.
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Affiliation(s)
- Negar Omidakhsh
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Arupa Ganguly
- Department of Genetics, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Greta R Bunin
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ondine S von Ehrenstein
- Department of Community Health Sciences, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California
| | - Julia E Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California.
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Danysh HE, Mitchell LE, Zhang K, Scheurer ME, Lupo PJ. Differences in environmental exposure assignment due to residential mobility among children with a central nervous system tumor: Texas, 1995-2009. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2017; 27:41-46. [PMID: 26443468 DOI: 10.1038/jes.2015.63] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/18/2015] [Accepted: 08/25/2015] [Indexed: 06/05/2023]
Abstract
In epidemiologic studies of childhood cancer, environmental exposures are often assigned based on either residence at birth or diagnosis without considering the impact of residential mobility. Therefore, we evaluated residential mobility and exposure assignment differences to hazardous air pollutants between birth and diagnosis in children with a central nervous system (CNS) tumor. Children diagnosed with CNS tumors during 1995-2009 (N=1,196) were identified from the Texas Cancer Registry. Census tract-level estimates of 1,3-butadiene and benzene were used to assign quartiles of exposure based on the maternal residence at birth and the child's residence at diagnosis. Overall, 64% of younger (0-4 years) children and 79% of older (5-14 years) children moved between birth and diagnosis. Using mixed-effects ordinal logistic regression, residence at diagnosis compared to birth did not result in a significant change in exposure assignment for younger children; however, older children were more likely to be placed in a lower 1,3-butadiene or benzene exposure quartile based on residence at diagnosis compared to birth (odds ratio (OR)=0.58, 95% confidence interval (CI)=0.45-0.76; OR=0.57, 95% CI=0.44-0.75, respectively). In conclusion, while the majority of children moved between birth and CNS tumor diagnosis, mobility did not significantly impact 1,3-butadiene and benzene exposure assessment in younger children.
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Affiliation(s)
- Heather E Danysh
- Department of Pediatrics, Hematology-Oncology Section, Texas Children's Cancer Center, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
- Department of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Laura E Mitchell
- Department of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Kai Zhang
- Department of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Michael E Scheurer
- Department of Pediatrics, Hematology-Oncology Section, Texas Children's Cancer Center, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Philip J Lupo
- Department of Pediatrics, Hematology-Oncology Section, Texas Children's Cancer Center, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
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García-Pérez J, Morales-Piga A, Gómez-Barroso D, Tamayo-Uria I, Pardo Romaguera E, López-Abente G, Ramis R. Residential proximity to environmental pollution sources and risk of rare tumors in children. ENVIRONMENTAL RESEARCH 2016; 151:265-274. [PMID: 27509487 DOI: 10.1016/j.envres.2016.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/01/2016] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Few epidemiologic studies have explored risk factors for rare tumors in children, and the role of environmental factors needs to be assessed. OBJECTIVES To ascertain the effect of residential proximity to both industrial and urban areas on childhood cancer risk, taking industrial groups into account. METHODS We conducted a population-based case-control study of five childhood cancers in Spain (retinoblastoma, hepatic tumors, soft tissue sarcomas, germ cell tumors, and other epithelial neoplasms/melanomas), including 557 incident cases from the Spanish Registry of Childhood Tumors (period 1996-2011), and 3342 controls individually matched by year of birth, sex, and region of residence. Distances were computed from the residences to the 1271 industries and the 30 urban areas with ≥75,000 inhabitants located in the study area. Using logistic regression, odds ratios (ORs) and 95% confidence intervals (95%CIs) for categories of distance to industrial and urban pollution sources were calculated, with adjustment for matching variables and socioeconomic confounders. RESULTS Children living near industrial and urban areas as a whole showed no excess risk for any of the tumors analyzed. However, isolated statistical associations (OR; 95%CI) were found between retinoblastoma and proximity to industries involved in glass and mineral fibers (2.49; 1.01-6.12 at 3km) and organic chemical industries (2.54; 1.10-5.90 at 2km). Moreover, soft tissue sarcomas registered the lower risks in the environs of industries as a whole (0.59; 0.38-0.93 at 4km). CONCLUSIONS We have found isolated statistical associations between retinoblastoma and proximity to industries involved in glass and mineral fibers and organic chemical industries.
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Affiliation(s)
- Javier García-Pérez
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain; Consortium for Biomedical Research in Epidemiology & Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Spain.
| | - Antonio Morales-Piga
- Rare Disease Research Institute (IIER), Carlos III Institute of Health, Madrid, Spain; Consortium for Biomedical Research in Rare Diseases (CIBERER), Madrid, Spain.
| | - Diana Gómez-Barroso
- Consortium for Biomedical Research in Epidemiology & Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Spain; National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.
| | - Ibon Tamayo-Uria
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain.
| | - Elena Pardo Romaguera
- Spanish Registry of Childhood Tumors (RETI-SEHOP), University of Valencia, Valencia, Spain.
| | - Gonzalo López-Abente
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain; Consortium for Biomedical Research in Epidemiology & Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Spain.
| | - Rebeca Ramis
- Cancer and Environmental Epidemiology Unit, National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain; Consortium for Biomedical Research in Epidemiology & Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Spain.
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16
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von Ehrenstein OS, Heck JE, Park AS, Cockburn M, Escobedo L, Ritz B. In Utero and Early-Life Exposure to Ambient Air Toxics and Childhood Brain Tumors: A Population-Based Case-Control Study in California, USA. ENVIRONMENTAL HEALTH PERSPECTIVES 2016; 124:1093-9. [PMID: 26505805 PMCID: PMC4937846 DOI: 10.1289/ehp.1408582] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Accepted: 10/21/2015] [Indexed: 05/27/2023]
Abstract
BACKGROUND Little is known about the influence of environmental factors on the etiology of childhood brain tumors. OBJECTIVES We examined risks for brain tumors in children after prenatal and infant exposure to monitored ambient air toxics. METHODS We ascertained all cases of medulloblastoma, central nervous system primitive neuroectodermal tumor (PNET), and astrocytoma before 6 years of age diagnosed in 1990-2007 from the California Cancer Registry and selected controls randomly from birth rolls matched by birth year. Exposures to air toxics during pregnancy/infancy for 43 PNET, 34 medulloblastoma, and 106 astrocytoma cases and 30,569 controls living within 5 mi of a monitor were determined. With factor analysis we assessed the correlational structures of 26 probable carcinogenic toxics, and estimated odds ratios by brain tumor type in logistic regression models. RESULTS PNETs (≤ 38 cases) were positively associated with interquartile range (IQR) increases in prenatal exposure to acetaldehyde [odds ratio (OR) = 2.30; 95% CI: 1.44, 3.67], 1,3-butadiene (OR = 2.23; 95% CI: 1.28, 3.88), benzene, and toluene; and with IQR increases in exposure during the first year of life to ortho-dichlorobenzene (OR = 3.27; 95% CI: 1.17, 9.14), 1,3-butadiene (OR = 3.15; 95% CI: 1.57, 6.32), and benzene. All exposures except ortho-dichlorobenzene loaded on the same factor. Medulloblastoma (≤ 30 cases) was associated with prenatal exposure to polycyclic aromatic hydrocarbons (PAHs combined: OR = 1.44; 95% CI: 1.15, 1.80). Exposures to lead and some PAHs during the first year of life were positively associated with astrocytoma, but the confidence intervals included the null value (e.g., for lead, OR = 1.40; 95% CI: 0.97, 2.03). CONCLUSIONS Our data suggest that in utero and infancy exposures to air toxics generated by industrial and road traffic sources may increase the risk of PNET and medulloblastoma, with limited support for increased risks for astrocytoma in children up to age 6. CITATION von Ehrenstein OS, Heck JE, Park AS, Cockburn M, Escobedo L, Ritz B. 2016. In Utero and early-life exposure to ambient air toxics and childhood brain tumors: a population-based case-control study in California, USA. Environ Health Perspect 124:1093-1099; http://dx.doi.org/10.1289/ehp.1408582.
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Affiliation(s)
| | - Julia E. Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California, USA
| | - Andrew S. Park
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California, USA
| | - Myles Cockburn
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Loraine Escobedo
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California, USA
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Nahta R, Al-Mulla F, Al-Temaimi R, Amedei A, Andrade-Vieira R, Bay SN, Brown DG, Calaf GM, Castellino RC, Cohen-Solal KA, Colacci A, Cruickshanks N, Dent P, Di Fiore R, Forte S, Goldberg GS, Hamid RA, Krishnan H, Laird DW, Lasfar A, Marignani PA, Memeo L, Mondello C, Naus CC, Ponce-Cusi R, Raju J, Roy D, Roy R, Ryan EP, Salem HK, Scovassi AI, Singh N, Vaccari M, Vento R, Vondráček J, Wade M, Woodrick J, Bisson WH. Mechanisms of environmental chemicals that enable the cancer hallmark of evasion of growth suppression. Carcinogenesis 2015; 36 Suppl 1:S2-18. [PMID: 26106139 DOI: 10.1093/carcin/bgv028] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
As part of the Halifax Project, this review brings attention to the potential effects of environmental chemicals on important molecular and cellular regulators of the cancer hallmark of evading growth suppression. Specifically, we review the mechanisms by which cancer cells escape the growth-inhibitory signals of p53, retinoblastoma protein, transforming growth factor-beta, gap junctions and contact inhibition. We discuss the effects of selected environmental chemicals on these mechanisms of growth inhibition and cross-reference the effects of these chemicals in other classical cancer hallmarks.
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Affiliation(s)
- Rita Nahta
- Departments of Pharmacology and Hematology & Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, GA 30322, USA, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Experimental and Clinical Medicine, University of Firenze, 50134 Florence, Italy, Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada, Program in Genetics and Molecular Biology, Graduate Division of Biological and Biomedical Sciences, Emory University, Atlanta, GA 30322, USA, Department of Environmental and Radiological Health Sciences/Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA, Instituto de Alta Investigacion, Universidad de Tarapaca, Arica 8097877, Chile, Division of Hematology and Oncology, Department of Pediatrics, Children's Healthcare of Atlanta and Emory University, Atlanta, GA 30322, USA, Department of Medicine/Medical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901-1914, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Departments of Neurosurgery and Biochemistry and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 980033, USA, Department of Biological, Chemical, and Pharmaceutical Sciences and Technologies, Polyclinic Plexus, University of Palermo, 90127 Palermo, Italy, Mediterranean Institute of Oncology, 95029 Viagrande, Italy, Graduate School of Biomedical Sciences and Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084-1501, USA, Department of Biomedical Science, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Department of Anatomy and Cell Biology, University of Western Ontario, London, Ontari
| | - Fahd Al-Mulla
- Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | | | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Firenze, 50134 Florence, Italy
| | - Rafaela Andrade-Vieira
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Sarah N Bay
- Program in Genetics and Molecular Biology, Graduate Division of Biological and Biomedical Sciences, Emory University, Atlanta, GA 30322, USA
| | - Dustin G Brown
- Department of Environmental and Radiological Health Sciences/Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Gloria M Calaf
- Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA, Instituto de Alta Investigacion, Universidad de Tarapaca, Arica 8097877, Chile
| | - Robert C Castellino
- Division of Hematology and Oncology, Department of Pediatrics, Children's Healthcare of Atlanta and Emory University, Atlanta, GA 30322, USA
| | - Karine A Cohen-Solal
- Department of Medicine/Medical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901-1914, USA
| | - Annamaria Colacci
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Nichola Cruickshanks
- Departments of Neurosurgery and Biochemistry and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 980033, USA
| | - Paul Dent
- Departments of Neurosurgery and Biochemistry and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 980033, USA
| | - Riccardo Di Fiore
- Department of Biological, Chemical, and Pharmaceutical Sciences and Technologies, Polyclinic Plexus, University of Palermo, 90127 Palermo, Italy
| | - Stefano Forte
- Mediterranean Institute of Oncology, 95029 Viagrande, Italy
| | - Gary S Goldberg
- Graduate School of Biomedical Sciences and Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084-1501, USA
| | - Roslida A Hamid
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia
| | - Harini Krishnan
- Graduate School of Biomedical Sciences and Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084-1501, USA
| | - Dale W Laird
- Department of Anatomy and Cell Biology, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Ahmed Lasfar
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ 60503, USA
| | - Paola A Marignani
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Lorenzo Memeo
- Mediterranean Institute of Oncology, 95029 Viagrande, Italy
| | - Chiara Mondello
- Institute of Molecular Genetics, National Research Council, 27100 Pavia, Italy
| | - Christian C Naus
- Department of Cellular & Physiological Sciences, Life Sciences Institute, Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Richard Ponce-Cusi
- Instituto de Alta Investigacion, Universidad de Tarapaca, Arica 8097877, Chile
| | - Jayadev Raju
- Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada
| | - Debasish Roy
- Department of Natural Science, The City University of New York at Hostos Campus, Bronx, NY 10451, USA
| | - Rabindra Roy
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC 20057, USA
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences/Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Hosni K Salem
- Urology Dept., kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt
| | - A Ivana Scovassi
- Institute of Molecular Genetics, National Research Council, 27100 Pavia, Italy
| | - Neetu Singh
- Advanced Molecular Science Research Centre, King George's Medical University, Lucknow, UP 226003, India
| | - Monica Vaccari
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Renza Vento
- Department of Biological, Chemical, and Pharmaceutical Sciences and Technologies, Polyclinic Plexus, University of Palermo, 90127 Palermo, Italy, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Jan Vondráček
- Department of Cytokinetics, Institute of Biophysics AS CR, Brno 612 65, Czech Republic
| | - Mark Wade
- Center for Genomic Science of IIT@SEMM, Istituto Italiano di Tecnologia (IIT), Milan 16163, Italy and
| | - Jordan Woodrick
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC 20057, USA
| | - William H Bisson
- Environmental and Molecular Toxicology, Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
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18
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Evidence for bystander signalling between human trophoblast cells and human embryonic stem cells. Sci Rep 2015; 5:11694. [PMID: 26170169 PMCID: PMC4501009 DOI: 10.1038/srep11694] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 05/22/2015] [Indexed: 01/08/2023] Open
Abstract
Maternal exposure during pregnancy to toxins can occasionally lead to miscarriage and malformation. It is currently thought that toxins pass through the placental barrier, albeit bi-layered in the first trimester, and damage the fetus directly, albeit at low concentration. Here we examined the responses of human embryonic stem (hES) cells in tissue culture to two metals at low concentration. We compared direct exposures with indirect exposures across a bi-layered model of the placenta cell barrier. Direct exposure caused increased DNA damage without apoptosis or a loss of cell number but with some evidence of altered differentiation. Indirect exposure caused increased DNA damage and apoptosis but without loss of pluripotency. This was not caused by metal ions passing through the barrier. Instead the hES cells responded to signalling molecules (including TNF-α) secreted by the barrier cells. This mechanism was dependent on connexin 43 mediated intercellular ‘bystander signalling’ both within and between the trophoblast barrier and the hES colonies. These results highlight key differences between direct and indirect exposure of hES cells across a trophoblast barrier to metal toxins. It offers a theoretical possibility that an indirectly mediated toxicity of hES cells might have biological relevance to fetal development.
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Abstract
Retinoblastoma is the most common neoplasm of the eye in childhood, and represents 3% of all childhood malignancies. Retinoblastoma is a cancer of the very young; two-thirds are diagnosed before 2 years of age and 95% before 5 years. Retinoblastoma presents in 2 distinct clinical forms: (1) a bilateral or multifocal, heritable form (25% of all cases), characterized by the presence of germline mutations of the RB1 gene; and (2) a unilateral or unifocal form (75% of all cases), 90% of which are nonhereditary. The treatment of retinoblastoma is multidisciplinary and is designed primarily to save life and preserve vision.
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Affiliation(s)
- Carlos Rodriguez-Galindo
- Department of Pediatric Oncology, Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, 450 Brookline Avenue, D3-133, Boston, MA 02215, USA.
| | - Darren B Orbach
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02215, USA
| | - Deborah VanderVeen
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02215, USA
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Lombardi C, Ganguly A, Bunin GR, Azary S, Alfonso V, Ritz B, Heck JE. Maternal diet during pregnancy and unilateral retinoblastoma. Cancer Causes Control 2014; 26:387-97. [PMID: 25542139 DOI: 10.1007/s10552-014-0514-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 12/18/2014] [Indexed: 01/29/2023]
Abstract
PURPOSE Previous studies have suggested a role for parental diet in childhood cancer prevention, but there are few studies of retinoblastoma. The aim of this study was to examine the relation between maternal diet and unilateral retinoblastoma. METHODS A case-control study of 163 unilateral RB cases and 136 controls ascertained information on maternal diet during pregnancy using a standardized food frequency questionnaire. Logistic regression was used to assess the relation between retinoblastoma and food groups and dietary patterns. RESULTS We observed a negative association between retinoblastoma and intake of fruit [odds ratio (OR) 0.38, 95 % confidence interval (CI) 0.14-1.02]. Positive associations were seen with intake of cured meats (OR 5.07, 95 % CI 1.63-15.70) and fried foods (OR 4.89, 95 % CI 1.72-13.89). A food pattern of high fruits and vegetables and low fried food and sweets was negatively associated with disease (OR 0.75, 95 % CI 0.61-0.92). CONCLUSION Our study provides preliminary evidence that mothers who consume diets higher in fruit and lower in fried foods and cured meats during pregnancy may reduce the risk of unilateral retinoblastoma in their offspring.
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Affiliation(s)
- Christina Lombardi
- Department of Epidemiology, UCLA Jonathan and Karin Fielding School of Public Health, 650 Charles E. Young Drive, Box 951772, Los Angeles, CA, 90095-1772, USA
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21
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Heck JE, Park AS, Qiu J, Cockburn M, Ritz B. Risk of leukemia in relation to exposure to ambient air toxics in pregnancy and early childhood. Int J Hyg Environ Health 2013; 217:662-8. [PMID: 24472648 DOI: 10.1016/j.ijheh.2013.12.003] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 12/17/2013] [Accepted: 12/19/2013] [Indexed: 12/23/2022]
Abstract
There are few established causes of leukemia, the most common type of cancer in children. Studies in adults suggest a role for specific environmental agents, but little is known about any effect from exposures in pregnancy to toxics in ambient air. In our case-control study, we ascertained 69 cases of acute lymphoblastic leukemia (ALL) and 46 cases of acute myeloid leukemia (AML) from California Cancer Registry records of children <age 6, and 19,209 controls from California birth records within 2 km (1.3 miles) (ALL) and 6 km (3.8 miles) (AML) of an air toxics monitoring station between 1990 and 2007. Information on air toxics exposures was taken from community air monitors. We used logistic regression to estimate the risk of leukemia associated with one interquartile range increase in air toxic exposure. Risk of ALL was elevated with 3(rd) trimester exposure to polycyclic aromatic hydrocarbons (OR=1.16, 95% CI 1.04, 1.29), arsenic (OR=1.33, 95% CI 1.02, 1.73), benzene (OR=1.50, 95% CI 1.08, 2.09), and three other toxics related to fuel combustion. Risk of AML was increased with 3rd trimester exposure to chloroform (OR=1.30, 95% CI 1.00, 1.69), benzene (1.75, 95% CI 1.04, 2.93), and two other traffic-related toxics. During the child's first year, exposure to butadiene, ortho-xylene, and toluene increased risk for AML and exposure to selenium increased risk for ALL. Benzene is an established cause of leukemia in adults; this study supports that ambient exposures to this and other chemicals in pregnancy and early life may also increase leukemia risk in children.
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Affiliation(s)
- Julia E Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA.
| | - Andrew S Park
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Jiaheng Qiu
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Myles Cockburn
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
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Heck JE, Park AS, Qiu J, Cockburn M, Ritz B. An exploratory study of ambient air toxics exposure in pregnancy and the risk of neuroblastoma in offspring. ENVIRONMENTAL RESEARCH 2013; 127:1-6. [PMID: 24139061 PMCID: PMC3960946 DOI: 10.1016/j.envres.2013.09.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 08/21/2013] [Accepted: 09/26/2013] [Indexed: 05/18/2023]
Abstract
Little is known about the etiology of neuroblastoma, the most common cancer in infancy. In this study, we examined maternal exposure to ambient air toxics in pregnancy in relation to neuroblastoma in the child. We ascertained all cases of neuroblastoma listed in the California Cancer Registry 1990-2007 that could be linked to a California birth certificate, and controls were selected at random from California birth records. Average air toxics exposures during pregnancy were determined based upon measures from community-based air pollution monitors. The study included 75 cases and 14,602 controls who lived with 5 km of an air pollution monitor, and we additionally examined results for those living within a smaller radius around the monitor (2.5 km). Logistic regression was used to determine the risk of neuroblastoma with one interquartile range increase in air toxic exposure. Neuroblastoma risk was increased with higher maternal exposure to carbon tetrachloride (OR=2.65, 95%CI 1.07, 6.53) and polycyclic aromatic hydrocarbons (OR=1.39, 95%CI 1.05, 1.84), particularly indeno(1,2,3-cd)pyrene and dibenz(a,h)anthracene. Hexavalent chromium was associated with neuroblastoma at the 5 km distance (OR=1.32, 95%CI 1.00, 1.74) but not at the 2.5 km distance. This is one of the first studies to report associations between neuroblastoma and these air toxics.
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Affiliation(s)
- Julia E Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E Young Dr, Box 951772, Los Angeles, CA 90095-1772, USA.
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