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Bah HAF, dos Santos NR, Gomes Junior EA, Costa DO, Martinez VO, Pires EM, Santana JVA, Cerqueira FDS, Menezes-Filho JA. Maternal Exposure to Potentially Toxic Metals and Birth Weight: Preliminary Results from the DSAN-12M Birth Cohort in the Recôncavo Baiano, Brazil. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6211. [PMID: 37444059 PMCID: PMC10340643 DOI: 10.3390/ijerph20136211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 06/10/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
Prenatal exposure to potentially toxic metals (PTM) may impair fetal growth (FG). We investigated the relationship between maternal exposure to lead (Pb), cadmium (Cd) and manganese (Mn) and birth weight (BW) of 74 newborns. Blood was collected during the second trimester of pregnancy to determine Pb (PbB) and Cd (CdB), while hair (MnH) and toenails (MnTn) were used for Mn. Samples were analyzed by graphite furnace atomic absorption spectrophotometry (GFAAS). Sociodemographic and BW data were collected from questionnaires and maternity records, respectively. The medians (P25th-P75th) of PbB, CdB, MnH, and MnTn were, respectively, 0.9 (0.5-1.8) µg/dL; 0.54 (0.1-0.8) µg/L; 0.18 (0.1-0.4) µg/g; and 0.65 (0.37-1.22) µg/g. The means (standard deviation) of birth weight according to sex were 3067 (426.3) and 3442 (431) grams, respectively, for girls and boys. MnTn presented an inverse correlation with the BW/gestational age ratio for girls (rho = -0.478; p = 0.018), suggesting the effect of sex modification. Although BW correlation with CdB was not statistically significant, hierarchical linear regression (beta = -2.08; 95% CI-4.58 to 0.41) suggested a fetotoxic effect. These results confirmed the threat PTMs may represent and the need for more extensive research to elucidate their role in inadequate FG in developing countries.
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Affiliation(s)
- Homègnon A. Ferréol Bah
- Institute of Collective Health, Federal University of Bahia, Salvador 40110-040, Brazil
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Nathália R. dos Santos
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Erival A. Gomes Junior
- Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Daisy O. Costa
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Victor O. Martinez
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Elis Macêdo Pires
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - João V. Araújo Santana
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - Filipe da Silva Cerqueira
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
| | - José A. Menezes-Filho
- Institute of Collective Health, Federal University of Bahia, Salvador 40110-040, Brazil
- Laboratory of Toxicology, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
- Graduate Program in Pharmacy, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, Brazil
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Li X, Jing MA, Cheng Y, Feng L, Wang S, Dong G. The relationship between extreme ambient temperature and small for gestational age: A cohort study of 1,436,480 singleton term births in China. ENVIRONMENTAL RESEARCH 2023:116412. [PMID: 37315757 DOI: 10.1016/j.envres.2023.116412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/29/2023] [Accepted: 06/11/2023] [Indexed: 06/16/2023]
Abstract
Studies have shown that exposure to extreme ambient temperature can contribute to adverse pregnancy outcomes, however, results across studies have been inconsistent. We aimed to evaluate the relationships between trimester-specific extreme temperature exposures and fetal growth restriction indicated by small for gestational age (SGA) in term pregnancies, and to assess whether and to what extent this relationship varies between different geographic regions. We linked 1,436,480 singleton term newborns (2014-2016) in Hubei Province, China, with a sub-district-level temperature exposures estimated by a generalized additive spatio-temporal model. Mixed-effects logistic regression models were employed to estimate the effects of extreme cold (temperature ≤5th percentile) and heat exposures (temperature >95th percentile) on term SGA in three different geographic regions, while adjusting for the effects of maternal age, infant sex, the frequency of health checks, parity, educational level, season of birth, area-level income, and PM2.5 exposure. We also stratified our analyses by infant sex, maternal age, urban‒rural type, income categories and PM2.5 exposure for robustness analyses. We found that both cold (OR:1.32, 95% CI: 1.25-1.39) and heat (OR:1.17, 95% CI: 1.13-1.22) exposures during the third trimester significantly increased the risk of SGA in the East region. Only extreme heat exposure (OR:1.29, 95% CI: 1.21-1.37) during the third trimester was significantly related to SGA in the Middle region. Our findings suggest that extreme ambient temperature exposure during pregnancy can lead to fetal growth restriction. Governments and public health institutions should pay more attention to environmental stresses during gestation, especially in the late stage of the pregnancy.
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Affiliation(s)
- Xiang Li
- Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Faculty of Geographical Science, Beijing Normal University, 19 Xinjiekouwai Street, Beijing. 100875, China.
| | - M A Jing
- Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Faculty of Geographical Science, Beijing Normal University, 19 Xinjiekouwai Street, Beijing. 100875, China.
| | - Yang Cheng
- Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Faculty of Geographical Science, Beijing Normal University, 19 Xinjiekouwai Street, Beijing. 100875, China
| | - Ling Feng
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Road, Wuhan, 430030, China
| | - Shaoshuai Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Road, Wuhan, 430030, China
| | - Guanpeng Dong
- Key Research Institute of Yellow River Civilization and Sustainable Development, Henan University, 85, Minglun Street, Kaifeng, 475001, China; Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Henan University, 85, Minglun Street, Kaifeng, 475001, China.
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Vigeh M, Sahebi L, Yokoyama K. Prenatal blood lead levels and Birth Weight: a Meta-analysis study. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2023; 21:1-10. [PMID: 37155699 PMCID: PMC10163201 DOI: 10.1007/s40201-022-00843-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 10/05/2022] [Accepted: 11/13/2022] [Indexed: 05/10/2023]
Abstract
Purpose Lead, a known toxic metal, causes several adverse reproductive effects, including low birth weight. Fortunately, the exposure level has sharply decreased during the recent decades, but a definitive safe level did not introduce for pregnant women yet. The current meta-analysis study aimed to conduct a quantitative estimation of maternal and umbilical cord blood lead effects on birth weight. Methods Two researchers have independently searched the scientific literature for retrieving related studies using the PRISMA criteria for data extraction. Twenty-one full-text articles were selected from primary 5006 titles, limited by the English language and published between 1991 and 2020 on humans. Results The pooled mean of maternal and umbilical cord blood lead levels were 6.85 µg/dL (95% CI: 3.36-10.34) and 5.41 µg/dL (95%CI: 3.43-7.40), respectively. The correlation coefficient analysis showed a significant inverse association between the mean maternal blood lead level and birth weight, which was confirmed by Fisher Z-Transformation analysis (-0.374, 95% CI: -0.382, -0.365, p < 0.01). In addition, a significantly lower birth weight (∆: 229 gr, p < 0.05) was found in the relatively high level of maternal blood lead than in low-level exposure (> 5 µg/dL vs. ≤ 5 µg/dL, respectively). Conclusion In short, the present study findings suggest an increasing maternal blood lead levels could be a potential risk factor for reducing birth weight. Thus, pregnant women should avoid lead exposure, as much as possible. Supplementary information The online version contains supplementary material available at 10.1007/s40201-022-00843-w.
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Affiliation(s)
- Mohsen Vigeh
- Maternal, Fetal and Neonatal Research Center, Family Health Research Institute, Immam Knomeini Hospital , Tehran University of Medical Sciences, Tehran 142933141, Iran
- Department of Epidemiology and Environmental Health, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunyaku-ko, 113-8421 Tokyo, Japan
| | - Leyla Sahebi
- Department of Epidemiology and Environmental Health, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunyaku-ko, 113-8421 Tokyo, Japan
| | - Kazuhito Yokoyama
- Department of Epidemiology and Environmental Health, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunyaku-ko, 113-8421 Tokyo, Japan
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Cui Q, Li L, Cao Y, Yang B, Liu L, Dong X, Cha Y, Ruan H, Tang S, Wang Q. Trends in elemental Pb concentrations within atmospheric PM 2.5 and associated risk to human health in major cities of China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 320:121036. [PMID: 36623789 DOI: 10.1016/j.envpol.2023.121036] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
High concentrations of elemental lead (Pb) in the atmosphere pose a serious threat to human health. This study presents and summarizes data obtained from relevant literature on Pb concentrations within fine particulate matter (PM2.5) recorded in major cities in China from 2008 to 2019. An environmental health risk assessment model was then used to evaluate the health hazards of inhaling Pb among adults and children in China. Owing to the promulgation and implementation of a series of air pollution control measures, the Pb concentrations within PM2.5 measured in major cities in China showed a downward trend after peaking in 2013. The concentrations were higher in winter than in summer, and higher in northern cities than in southern cities. Although the Pb concentrations in most cities did not exceed the limit (500 ng/m3) set by China, they remained much higher than concentrations recorded in developed countries. The results of the environmental health risk analysis showed that the non-carcinogenic risk from atmospheric Pb exposure was higher in children than in adults (adult females > adult males), while the carcinogenic risk was higher in adults than in children. This study shows that even if the health risk of Pb in PM2.5 does not exceed the acceptable limit, stricter Pb pollution control measures are required to safeguard population health due to the dangers of Pb.
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Affiliation(s)
- Qian Cui
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China; School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Liangzhong Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, Center for Environmental Health Research, South China Institute of Environmental Sciences, The Ministry of Ecological and Environment of PR China, Guangzhou, 510655, China
| | - Yaqiang Cao
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China; School of Public Health Nanjing Medical University, Nanjing, 211166, China
| | - Bo Yang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China; Baotou Medical College, Baotou, 014040, China
| | - Lindou Liu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China; School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Xiaoyan Dong
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Yu'e Cha
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Hongjie Ruan
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Song Tang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China
| | - Qiong Wang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, 100021, China.
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Dou Y, Yin Y, Li Z, Du J, Jiang Y, Jiang T, Guo W, Qin R, Li M, Lv H, Lu Q, Qiu Y, Lin Y, Jin G, Lu C, Ma H, Hu Z. Maternal exposure to metal mixtures during early pregnancy and fetal growth in the Jiangsu Birth Cohort, China. ENVIRONMENTAL RESEARCH 2022; 215:114305. [PMID: 36096164 DOI: 10.1016/j.envres.2022.114305] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/26/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
Previous epidemiological studies have reported that prenatal exposure to metals might have influence on fetal growth. Most studies assessed the effect of individual metals, while the investigation on the relationship between multiple metal exposure and fetal growth is sparse. The objective of the present study is to assess the joint impact of metal mixtures on fetal growth during pregnancy. A total of 1275 maternal-infant pairs from the Jiangsu Birth Cohort (JBC) Study were included to investigate the effect of maternal metal exposure on fetal biometry measures at 22-24, 30-32, and 34-36 weeks of gestation. Lead (Pb), arsenic (As), cadmium (Cd), mercury (Hg), chromium (Cr), vanadium(V), thallium (Tl) and barium (Ba) were measured by inductively coupled plasma mass spectrometry (ICP-MS) in maternal urine samples collected in the first trimester. We used general linear models and restricted cubic splines to test dose-response relationships between single metals and fetal growth. The weighted quantile sum (WQS) models were then applied to evaluate the overall effect of all these metals. We observed inverse associations of exposure to Pb, V and Cr with estimated fetal weight (EFW) at 34-36 weeks of gestation. Notably, maternal exposure to metal mixtures was significantly associated with reduced EFW at 34-36 weeks of gestation after adjusting for some covariates and confounders (aβ -0.05 [95% CI: 0.09, -0.01], P = 0.023), and this association was mainly driven by Cr (30.41%), Pb (23.92%), and Tl (15.60%). These findings indicated that prenatal exposure to metal mixtures might impose adverse effects on fetal growth.
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Affiliation(s)
- Yuanyan Dou
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Yin Yin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Obstetrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Zhi Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Jiangbo Du
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215002, Jiangsu, China
| | - Yangqian Jiang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Tao Jiang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Wenhui Guo
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Rui Qin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Mei Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Hong Lv
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215002, Jiangsu, China
| | - Qun Lu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Maternal, Child and Adolescent Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Yun Qiu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215002, Jiangsu, China
| | - Yuan Lin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215002, Jiangsu, China; Department of Maternal, Child and Adolescent Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Guangfu Jin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215002, Jiangsu, China
| | - Chuncheng Lu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
| | - Hongxia Ma
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215002, Jiangsu, China.
| | - Zhibin Hu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215002, Jiangsu, China.
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Deierlein AL, Wu H, Just AC, Kupsco AJ, Braun JM, Oken E, Soria-Contreras DC, Cantoral A, Pizano ML, McRae N, Téllez-Rojo MM, Wright RO, Baccarelli AA. Prenatal phthalates, gestational weight gain, and long-term weight changes among Mexican women. ENVIRONMENTAL RESEARCH 2022; 209:112835. [PMID: 35101400 PMCID: PMC8976769 DOI: 10.1016/j.envres.2022.112835] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 12/18/2021] [Accepted: 01/24/2022] [Indexed: 05/03/2023]
Abstract
BACKGROUND Phthalates are endocrine disrupting chemicals that may influence weight status; however, few studies have considered weight gain during pregnancy and subsequent long-term weight changes in women. OBJECTIVE To determine associations of prenatal phthalate exposure with maternal weight during pregnancy and through up to seven years post-delivery. METHODS We analyzed 15 urinary phthalate biomarker concentrations during the 2nd and 3rd trimesters among 874 pregnant women enrolled in the Programming Research in Obesity, Growth Environment and Social Stress Study in Mexico City. We examined three time-specific maternal weight outcomes: gestational weight gain (between 2nd and 3rd trimesters), short-term weight (between 3rd trimester and 12 months post-delivery), and long-term weight (between 18 months and 6-7 years post-delivery). We used Bayesian Kernel Machine Regression (BKMR) to estimate associations for the total phthalate mixture, as well as multivariable linear mixed models for individual phthalate biomarkers. RESULTS As a mixture, 2nd trimester urinary phthalate biomarker concentrations were associated with somewhat lower gestational weight gain between the 2nd and 3rd trimesters (interquartile range, IQR, difference: -0.07 standard deviations, SD; 95% credible interval, CrI: -0.20, 0.06); multivariable regression and BKMR models indicated that this inverse association was primarily driven by mono-2-ethyl-5-carboxypentyl terephthalate (MECPTP). Prenatal (2nd and 3rd trimesters) urinary phthalate mixture concentrations were positively associated with maternal weight change through 12 months postpartum (IQR difference: 0.11 SD; 95% CrI: 0.00, 0.23); these associations persisted from 18 months to 6-7 years follow-up (IQR difference: 0.07 SD; 95% CrI: 0.04, 0.10). Postpartum weight changes were associated with mono-3-carboxypropyl phthalate (MCPP) and MECPTP. CONCLUSIONS Prenatal phthalate exposure was inversely associated with gestational weight gain and positively associated with long-term changes in maternal weight. Further investigation is required to understand how phthalates may influence body composition and whether they contribute to the development of obesity and other cardiometabolic diseases in women.
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Affiliation(s)
- Andrea L Deierlein
- Department of Epidemiology, School of Global Public Health, New York University, New York, USA.
| | - Haotian Wu
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, USA
| | - Allan C Just
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Allison J Kupsco
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, USA
| | - Joseph M Braun
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI, USA
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Diana C Soria-Contreras
- Center for Nutrition and Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Alejandra Cantoral
- Center for Nutrition and Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Ma Luisa Pizano
- Division of Community Interventions Research, National Institute of Perinatology, Mexico City, Mexico
| | - Nia McRae
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Martha M Téllez-Rojo
- Center for Nutrition and Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, USA
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7
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McRae N, Gennings C, Rivera Rivera N, Tamayo-Ortiz M, Pantic I, Amarasiriwardena C, Schnaas L, Wright R, Tellez-Rojo MM, Wright RO, Rosa MJ. Association between prenatal metal exposure and adverse respiratory symptoms in childhood. ENVIRONMENTAL RESEARCH 2022; 205:112448. [PMID: 34848207 PMCID: PMC8768059 DOI: 10.1016/j.envres.2021.112448] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/15/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Manganese and lead have been cross-sectionally associated with adverse respiratory outcomes in childhood but there is limited data on their combined effects starting in utero. We examined associations between in utero exposure to metals and childhood respiratory symptoms. METHODS We assessed 633 mother-child dyads enrolled in the Programming Research in Obesity, Growth, Environment, and Social Stressors (PROGRESS) birth cohort in Mexico City. Blood manganese (BMn) and lead (BPb) were measured in mothers at 2nd and 3rd trimester. Ever wheeze, current wheeze and asthma diagnosis were ascertained at 4-5 and 6-7 year visits through the International Study of Asthma and Allergies in Childhood survey. Logistic mixed model regression was used to assess the association between prenatal metals and respiratory outcomes in children across the 4-5 and 6-7 year visits. Covariates included mother's age, education and asthma, environmental tobacco smoke, child's sex and assessment time. RESULTS In adjusted models, higher 2nd trimester BPb had a significant association with elevated odds of ever wheeze (Odds Ratio (OR): 1.97, 95% CI: 1.05, 3.67). BMn at 2nd trimester was associated with decreased (OR: 0.06, 95% CI: 0.01, 0.35) odds of current wheeze. We did not find any statistically significant associations with 3rd trimester blood metals. CONCLUSION Prenatal exposure to Pb was associated with higher odds of ever wheeze while Mn was negatively associated with odds of current wheeze. These findings underscore the need to consider prenatal metal exposure, including low exposure levels, in the study of adverse respiratory outcomes.
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Affiliation(s)
- Nia McRae
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chris Gennings
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nadya Rivera Rivera
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marcela Tamayo-Ortiz
- Occupational Health Research Unit, Mexican Institute of Social Security (IMSS), Mexico City, Mexico
| | - Ivan Pantic
- Department of Developmental Neurobiology, National Institute of Perinatology, Mexico City, Mexico
| | - Chitra Amarasiriwardena
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lourdes Schnaas
- Department of Developmental Neurobiology, National Institute of Perinatology, Mexico City, Mexico
| | - Rosalind Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Kravis Children's Hospital, Department of Pediatrics, Division of Pediatric Pulmonology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Martha M Tellez-Rojo
- Center for Nutrition and Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Maria José Rosa
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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8
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Rosa MJ, Tamayo-Ortiz M, Mercado Garcia A, Rivera Rivera NY, Bush D, Lee AG, Solano-González M, Amarasiriwardena C, Téllez-Rojo MM, Wright RO, Wright RJ. Prenatal lead exposure and childhood lung function: Influence of maternal cortisol and child sex. ENVIRONMENTAL RESEARCH 2022; 205:112447. [PMID: 34875261 PMCID: PMC8760170 DOI: 10.1016/j.envres.2021.112447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Maternal hypothalamic-pituitary-adrenal (HPA) axis disruption in pregnancy may contribute to the programming of childhood respiratory disease and may modify the effect of chemical toxins, like lead (Pb), on lung development. Child sex may further modify these effects. We sought to prospectively examine associations between maternal HPA axis disruption, prenatal Pb and childhood lung function and explore potential effect modification by maternal cortisol and child sex on the association between prenatal Pb and lung function outcomes. MATERIALS AND METHODS Analyses included 222 mothers and children enrolled in a longitudinal birth cohort study in Mexico City. Maternal diurnal salivary cortisol was assessed in pregnancy; cortisol awakening response (CAR) and diurnal slope were calculated. Blood Pb was measured during the second trimester of pregnancy. Post-bronchodilator lung function was tested at ages 8-11 years. Associations were modeled using generalized linear models with interaction terms, adjusting for covariates. RESULTS A higher (flatter) diurnal slope was associated with lower FEV1/FVC ratio (β: 0.433, 95%CI [-0.766, -0.101]). We did not find any main effect associations between prenatal Pb and lung function outcomes. We report an interaction between Pb and cortisol in relation to FEV1/FVC and FEF25-75% (pinteraction<0.05 for all). Higher prenatal Pb was associated with reduced FEV1/FVC only in children whose mothers had a high CAR. Higher prenatal Pb was also associated with reduced FEV1/FVC and FEF25-75% in mothers with a flatter diurnal slope. A 3-way interaction between prenatal Pb, CAR and sex on FEV1/FVC, indicated that boys born to women with high CAR and higher prenatal Pb levels had lower FEV1/FVC ratios (pinteraction = 0.067). CONCLUSIONS Associations between prenatal Pb and childhood lung function were modified by disrupted maternal cortisol in pregnancy and child sex. These findings underscore the need to consider complex interactions to fully elucidate effects of prenatal Pb exposure on childhood lung function.
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Affiliation(s)
- Maria José Rosa
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, 10029, New York, NY, USA.
| | - Marcela Tamayo-Ortiz
- Occupational Health Research Unit, Mexican Institute of Social Security (IMSS), Av. Cuahtemoc 330, Col. Doctores, 06720, Mexico City, Mexico.
| | - Adriana Mercado Garcia
- Center for Nutrition and Health Research, National Institute of Public Health, Av. Universidad #655 Col, Santa Maria Ahuacatitlan C.P, 62100, Cuernavaca, Morelos, Mexico.
| | - Nadya Y Rivera Rivera
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, 10029, New York, NY, USA.
| | - Douglas Bush
- Kravis Children's Hospital, Department of Pediatrics, Division of Pediatric Pulmonology, Icahn School of Medicine at Mount Sinai, 1184 Fifth Avenue, 10029, New York, NY, USA.
| | - Alison G Lee
- Division of Pulmonary, Critical Care and Sleep, Department of Medicine, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, 10029, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY, 10029, USA.
| | - Maritsa Solano-González
- Center for Nutrition and Health Research, National Institute of Public Health, Av. Universidad #655 Col, Santa Maria Ahuacatitlan C.P, 62100, Cuernavaca, Morelos, Mexico.
| | - Chitra Amarasiriwardena
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, 10029, New York, NY, USA.
| | - Martha Maria Téllez-Rojo
- Center for Nutrition and Health Research, National Institute of Public Health, Av. Universidad #655 Col, Santa Maria Ahuacatitlan C.P, 62100, Cuernavaca, Morelos, Mexico.
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, 10029, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY, 10029, USA.
| | - Rosalind J Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, 10029, New York, NY, USA; Division of Pulmonary, Critical Care and Sleep, Department of Medicine, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, 10029, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY, 10029, USA.
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9
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Herrera-Moreno JF, Estrada-Gutierrez G, Wu H, Bloomquist TR, Rosa MJ, Just AC, Lamadrid-Figueroa H, Téllez-Rojo MM, Wright RO, Baccarelli AA. Prenatal lead exposure, telomere length in cord blood, and DNA methylation age in the PROGRESS prenatal cohort. ENVIRONMENTAL RESEARCH 2022; 205:112577. [PMID: 34921825 DOI: 10.1016/j.envres.2021.112577] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/02/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Lead is a ubiquitous pollutant with deleterious effects on human health and remains a major current public health concern in developing countries. This heavy metal may interfere with nucleic acids via oxidative stress or epigenetic changes that affect biological markers of aging, e.g., telomere length and DNA methylation (DNAm). Telomere shortening associates with biological age in newborns, and DNA methylation at specific CpG sites can be used to calculate "epigenetic clocks". OBJECTIVE The aim of this study was to examine the associations of prenatal lead exposures with telomere length and DNA-methylation-based predictors of age in cord blood. DESIGN The study included 507 mother-child pairs from the Programming Research in Obesity, Growth, Environment and Social Stressors (PROGRESS) study, a birth cohort in Mexico City. Maternal blood (second trimester, third trimester and at delivery) and bone lead levels (one month postpartum) were measured using inductively coupled plasma-mass spectrometry and X-ray fluorescence, respectively. Cord blood leukocyte telomere length was measured using quantitative PCR and apparent age by DNA methylation biomarkers, i.e., Horvath's DNA methylation age and the Knight's predictor of gestational age. RESULTS Average maternal age was 28.5 ± 5.5 years, and 51.5% reported low socioeconomic status. Children's mean telomere length was 1.2 ± 1.3 relative units, and mean DNA methylation ages using the Horvath's and Knight's clocks were -2.6 ± 0.1 years and 37.9 ± 1.4 weeks (mean ± SD), respectively. No significant associations were found between maternal blood and bone lead concentrations with telomere length and DNAm age in newborns. CONCLUSION We found no associations of prenatal lead exposure with telomere length and DNA methylation age biomarkers.
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Affiliation(s)
- José F Herrera-Moreno
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | | | - Haotian Wu
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Tessa R Bloomquist
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Maria José Rosa
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Allan C Just
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hector Lamadrid-Figueroa
- Department of Perinatal Health, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Martha M Téllez-Rojo
- Center for Nutrition and Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
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10
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Osorio-Yáñez C, Sanchez-Guerra M, Solano M, Baccarelli A, Wright R, Sanders AP, Tellez-Rojo MM, Tamayo-Ortiz M. Metal exposure and bone remodeling during pregnancy: Results from the PROGRESS cohort study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 282:116962. [PMID: 33823308 PMCID: PMC11064930 DOI: 10.1016/j.envpol.2021.116962] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 02/20/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Pregnancy is characterized by high bone remodeling and might be a window of susceptibility to the toxic effects of metals on bone tissue. The aim of this study was to assess associations between metals in blood [lead (Pb), cadmium (Cd)and arsenic (As)] and bone remodeling during pregnancy. We studied pregnant woman from the PROGRESS Cohort (Programming Research in Obesity, Growth, and Environment and Social Stress). We measured concentrations of metals in blood and obtained measures of bone remodeling by quantitative ultrasound (QUS) at the radius in the second and third trimester of pregnancy. To account for chronic lead exposure, we measured lead in tibia and patella one-month postpartum with K-shell X-ray fluorescence. We assessed cross-sectional and longitudinal associations between multiple-metal concentrations and QUS z-scores using linear regression models and linear mixed models adjusted for potential confounders. Third trimester blood Cd concentrations were marginal associated with lower QUS z-scores [-0.16 (95% CI: -0.33, 0.007); P-Value = 0.06]. Mixed models showed that blood Cd was longitudinally and marginally associated with an average of -0.10 z-score (95% CI: -0.21, 0.002; P-Value = 0.06) over the course of pregnancy. Associations for Pb and As were all inverse however none reached significance. Additionally, bone Pb concentrations in patella, an index of cumulative exposure, were significantly associated with -0.06 z-score at radius (95% CI: -0.10, -0.01; P-Value = 0.03) during pregnancy. Pb and Cd blood levels are associated with lower QUS distal radius z-scores in pregnant women. Bone Pb concentrations in patella were negatively associated with z-score at radius showing the long-term effects of Pb on bone tissue. However, we cannot exclude the possibility of reverse causality for patella Pb and radius z-score associations. Our results support the importance of reducing women's metal exposure during pregnancy, as metals exposure during pregnancy may have consequences for bone strength later in life. The main finding of our study is the association between Cd blood levels and radius z-score during pregnancy. Bone lead in patella was also negatively associated with radius z-scores.
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Affiliation(s)
- Citlalli Osorio-Yáñez
- Center for Nutrition and Health Research, National Institute of Public Health, Cuernavaca, Morelos, Mexico; Instituto de Investigaciones Biomedicas, Universidad Nacional Autonoma de Mexico (UNAM), Ciudad Universitaria S/N, Mexico
| | - Marco Sanchez-Guerra
- Department of Developmental Neurobiology, National Institute of Perinatology, Montes Urales 800, Lomas Virreyes, Mexico City, 1100, Mexico
| | - Maritsa Solano
- Center for Evaluation Research & Surveys, National Institute of Public Health, Cuernavaca, Morelos, 62100, Mexico
| | - Andrea Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Robert Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, NY, 10029, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, NY, 10029, USA
| | - Alison P Sanders
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, NY, 10029, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, NY, 10029, USA
| | - Martha Maria Tellez-Rojo
- Center for Evaluation Research & Surveys, National Institute of Public Health, Cuernavaca, Morelos, 62100, Mexico.
| | - Marcela Tamayo-Ortiz
- Occupational Research Unit, Mexican Social Security Institute (IMSS), Mexico City, Mexico
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11
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Hanna-Attisha M, Gonuguntla A, Peart N, LaChance J, Taylor DK, Chawla S. Umbilical Cord Blood Lead Level Disparities between Flint and Detroit. Am J Perinatol 2021; 38:e26-e32. [PMID: 32143224 DOI: 10.1055/s-0040-1705135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The lead-in-water impact of the Flint water crisis on the youngest and most neurodevelopmentally vulnerable population was largely unknown. The objective of this study was to investigate and compare cord blood lead levels (CBLLs) in newborns in Flint, Michigan, after the Flint water crisis, to a group of Detroit newborns. STUDY DESIGN Mothers of 99 Flint newborns were surveyed about potential lead exposures. These neonates were born after the recognition of population-wide lead-in-water contamination. CBLLs were measured and maternal-fetal metrics were reviewed. CBLLs and maternal-fetal metrics were then compared with those of a retrospective cohort of 116 Detroit newborns who previously shared the same water source. Analysis involved descriptive statistics, independent t-test, and χ 2 analysis. RESULTS CBLLs greater than or equal to 1 μg/dL (0.05 μmol/L) were more prevalent among Flint newborns (14%), as compared with Detroit newborns (2%; p = 0.001). This was a sevenfold disparity between Flint and Detroit newborns. No statistically significant differences were found in birth weight, head circumference, small for gestational age status, gestational age, or preterm status among the two groups. CONCLUSION The Flint water crisis potentially exposed newborns to lead in utero, implicating maternal-fetal outcomes and future health and development. Primary prevention efforts, including identification and mitigation of lead exposure before conception and during pregnancy, are needed. New environmental exposure detection methods and long-term neurodevelopmental follow-up will complement the findings of this study.
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Affiliation(s)
- Mona Hanna-Attisha
- Pediatric Residency Program, Hurley Children's Hospital at Hurley Medical Center, Flint, Michigan.,Department of Pediatrics and Human Development, Michigan State University College of Human Medicine, Flint, Michigan
| | - Ashweena Gonuguntla
- Department of Pediatrics and Human Development, Michigan State University College of Human Medicine, Flint, Michigan.,Newborn Nursery, Hurley Children's Hospital at Hurley Medical Center, Flint, Michigan
| | - Nadine Peart
- Pediatric Residency Program, Hurley Children's Hospital at Hurley Medical Center, Flint, Michigan.,Department of Pediatrics and Human Development, Michigan State University College of Human Medicine, Flint, Michigan
| | - Jenny LaChance
- Research, Hurley Medical Center, Flint, Michigan.,Office of Medical Education Research and Development, Michigan State University College of Human Medicine, East Lansing, Michigan
| | - D Kay Taylor
- Research, Hurley Medical Center, Flint, Michigan.,Office of Medical Education Research and Development, Michigan State University College of Human Medicine, East Lansing, Michigan
| | - Sanjay Chawla
- Department of Pediatrics, Hutzel Women's Hospital and Children's Hospital of Michigan, Wayne State University, Detroit, Michigan
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12
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Boyle J, Yeter D, Aschner M, Wheeler DC. Estimated IQ points and lifetime earnings lost to early childhood blood lead levels in the United States. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146307. [PMID: 34030355 DOI: 10.1016/j.scitotenv.2021.146307] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
There is no safe detectable level of lead (Pb) in the blood of children. Blood lead levels (BLLs) at ages 6-24 months ≥2 μg/dL result in lost grade school intelligence quotient (IQ) points at ages 5-10 years. Black children continue to have the highest BLLs in the United States. Therefore, we examined currently undetermined racial/ethnic disparities in anticipated IQ points and associated lifetime earnings lost to early childhood blood lead. We conducted secondary analysis of infants with blood lead (in μg/dL) measured at ages 12-24 months by the cross-sectional National Health and Nutrition Examination Survey (NHANES) during 1999 to 2010. Nationally-representative estimates were produced using weighted simulation model. A total of 1241 infants were included from the NHANES sample (52% male; mean [SD] age, 18.5 [3.5] months; 25% Black [non-Hispanic], 42% Hispanic [any race], 5% Other/Multiracial, and 29% White [non-Hispanic]) after excluding 811 without BLL determinations. For national outcomes, Black infants experienced approximately 46-55% greater average estimated loss of grade school IQ points from blood lead than Hispanic or White infants (-1.78 IQ points vs. -1.15 and -1.21 respectively) with similar disparities in costs to expected lifetime earnings (-$47,116 USD vs. -$30,393 and -$32,356 respectively). Our estimated nationwide costs of IQ points lost to BLLs during this 12-year period totaled $554 billion ($46.2 billion/year), in which blood lead <5 μg/dL accounted for 74% of this total burden. We report two aspects of the substantial national costs attributable to lead exposure in just the second year of life alone, which disproportionately impact predominately African-American Black infants from continuing legacies of environmental racism in lead exposure. Our findings underscore the remarkably high costs from recognized hazards of blood lead even at the lowest levels and the importance of primary prevention regarding childhood lead exposure.
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Affiliation(s)
- Joseph Boyle
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Deniz Yeter
- School of Nursing, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - David C Wheeler
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA 23284, USA.
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13
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Hu JMY, Arbuckle TE, Janssen P, Lanphear BP, Zhuang LH, Braun JM, Chen A, McCandless LC. Prenatal exposure to endocrine disrupting chemical mixtures and infant birth weight: A Bayesian analysis using kernel machine regression. ENVIRONMENTAL RESEARCH 2021; 195:110749. [PMID: 33465343 DOI: 10.1016/j.envres.2021.110749] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Pregnant women are regularly exposed to a multitude of endocrine disrupting chemicals (EDCs). EDC exposures, both individually and as mixtures, may affect fetal growth. The relationship of EDC mixtures with infant birth weight, however, remains poorly understood. We examined the relations between prenatal exposure to EDC mixtures and infant birth weight. METHODS We used data from the Maternal-Infant Research on Environmental Chemicals (MIREC) Study, a pan-Canadian cohort of 1857 pregnant women enrolled between 2008 and 2011. We quantified twenty-one chemical concentrations from five EDC classes, including organochlorine compounds (OCs), metals, perfluoroalkyl substances (PFAS), phenols and phthalate metabolites that were detected in >70% of urine or blood samples collected during the first trimester. In our primary analysis, we used Bayesian kernel machine regression (BKMR) models to assess variable importance, explore EDC mixture effects, and identify any interactions among EDCs. Our secondary analysis used traditional linear regression to compare the results with those of BKMR and to quantify the changes in mean birth weight in relation to prenatal EDC exposures. RESULTS We found evidence that mixtures of OCs and metals were associated with monotonic decreases in mean birth weight across the whole range of exposure. trans-Nonachlor from the OC mixture and lead (Pb) from the metal mixture had the greatest impact on birth weight. Our linear regression analysis corroborated the BKMR results and found that a 2-fold increase in trans-nonachlor and Pb concentrations reduced mean birth weight by -38 g (95% confidence interval (CI): -67, -10) and -39 g (95% CI: -69, -9), respectively. A sex-specific association for OC mixture was observed among female infants. PFAS, phenols and phthalates were not associated with birth weight. No interactions were observed among the EDCs. CONCLUSIONS Using BKMR, we observed that both OC and metal mixtures were associated with decreased birth weight in the MIREC Study. trans-Nonachlor from the OC mixture and Pb from the metal mixture contributed most to the adverse effects.
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Affiliation(s)
- Janice M Y Hu
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.
| | - Tye E Arbuckle
- Population Studies Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada
| | - Patricia Janssen
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Liheng H Zhuang
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Joseph M Braun
- Department of Epidemiology, Brown University, Providence, RI, USA
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, USA
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14
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Shih YH, Chen HY, Christensen K, Handler A, Turyk ME, Argos M. Prenatal exposure to multiple metals and birth outcomes: An observational study within the National Children's Study cohort. ENVIRONMENT INTERNATIONAL 2021; 147:106373. [PMID: 33422966 PMCID: PMC7855942 DOI: 10.1016/j.envint.2020.106373] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/22/2020] [Accepted: 12/27/2020] [Indexed: 05/05/2023]
Abstract
BACKGROUND Prenatal exposure to metals may play an important role in fetal growth. However, the epidemiologic evidence for certain metals is sparse, and most of the existing research has focused on evaluating single metals in highly exposed target populations. OBJECTIVES We evaluated associations of cadmium, lead, manganese, selenium, and total mercury exposures during pregnancy with fetal growth using data from mother-infant pairs participating in the National Children's Study. METHODS Prenatal metal exposures were measured using maternal blood collected from 6 to 32 weeks of gestation. Birth outcomes, including gestational age, birthweight, birth length, head circumference, and ponderal index, were ascertained through physical measurement at birth or abstraction from medical records. Regression coefficients and their 95% confidence intervals were estimated from multivariable linear regression models in the overall study population as well as among male and female infants. We further evaluated pairwise metal-metal interactions. RESULTS Sex-specific associations were observed for lead, with inverse associations for birthweight, birth length, head circumference, and gestational age observed only among female infants. Sex-specific associations were also observed for selenium, with a positive association for birthweight observed among male infants; selenium was also positively associated with ponderal index and inversely associated with birth length among female infants. Overall, total mercury was inversely associated with birthweight and ponderal index, and the association with birthweight was stronger among female infants. No significant associations were observed with cadmium and manganese. In the metal-metal interaction analyses, we found evidence of a synergistic interaction between lead and total mercury and antagonistic interaction between selenium and total mercury with selected birth outcomes. CONCLUSIONS Our findings suggest that prenatal exposure to metals may be related to birth outcomes, and infant sex may modify these associations.
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Affiliation(s)
- Yu-Hsuan Shih
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL 60612, United States
| | - Hua Yun Chen
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL 60612, United States
| | | | - Arden Handler
- Division of Community Health Sciences, School of Public Health, University of Illinois Chicago, Chicago, IL 60612, United States
| | - Mary E Turyk
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL 60612, United States
| | - Maria Argos
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL 60612, United States.
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15
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Sezavar AH, Pourhassan B, Kakavandi NR, Hooshangi Shayeste MR, Abyadeh M. Association of maternal blood lead concentration with the risk of small for gestational age: A dose-response meta-analysis. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2021; 77:293-300. [PMID: 33492189 DOI: 10.1080/19338244.2021.1874857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In spite of growing evidence for the negative effect of lead, knowledge about the dose-response relationship of maternal blood lead level (BLL) and the risk of small for gestational age (SGA) is limited. We performed this meta-analysis to evaluate the dose-response relation between maternal BLL and the risk of SGA. A systematic search through Embase and PubMed was performed. Odds ratios (ORs) and 95% confidence intervals (95% CI) were calculated. The nonlinear and linear relationships between maternal BLL and the risk of SGA were also investigated. Results from 51,065 patients showed a significant association between maternal BLL and risk of SGA in highest versus lowest analysis (OR: 1.54; 95% CI: 1.12-2.10, p = 0.007). While there was no association in linear dose-response (OR: 1.02; 95% CI: 1.00-1.04, p = 0.021) meta-analysis, a direct relationship was observed in the nonlinear model (nonlinearity p < 0.001). Results of this dose-response meta-analysis showed that maternal BLL higher than ∼ 0.3 µg/dL is directly associated with the risk of SGA.
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Affiliation(s)
- Ahmad Habibian Sezavar
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Bahman Pourhassan
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Nader Rahimi Kakavandi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | | | - Morteza Abyadeh
- Department of Molecular Systems Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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16
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Merchant AT, Liu J, Reynolds MA, Beck JD, Zhang J. Quantile regression to estimate the survivor average causal effect of periodontal treatment effects on birthweight and gestational age. J Periodontol 2020; 92:975-982. [PMID: 33155296 DOI: 10.1002/jper.20-0376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/01/2020] [Accepted: 09/10/2020] [Indexed: 01/12/2023]
Abstract
BACKGROUND Survival average causal effect (SACE) can give valid estimates of the periodontal treatment effect on birth outcomes in randomized controlled trials when fetal losses are unequal across the treatment arms. A regression-based method to estimate SACE using ordinary least squares (OLS) regression can be biased if the treatment effect varies across the outcome distribution. In this case quantile regression may be a suitable alternative. METHODS We compared OLS and quantile regression models estimating SACE to calculate the effect of periodontal treatment on birthweight and gestational age in secondary analyses of publicly available Obstetrics and Periodontal Therapy (OPT) trial data. RESULTS Periodontal treatment tended to increase birthweight and gestational age at the lowest quantiles, remained flat in the middle quantiles, and trended to decrease both birthweight and gestational age in the highest quantiles. In quantile regression models estimating SACE the β-coefficients: 95% confidence intervals (CI) for the 5th, 50th, and 95th percentiles were 277.5: -141.0 to 696.0 g, 1.4: -107 to 110.3 g, and -84: -344 to 175.3 g for birthweight, and 0.6: -1.0 to 2.2 weeks, -0.1: -0.5 to 0.2 weeks, and -0.6: -1.0 to -0.1 weeks for gestational age. Estimates from OLS models estimating SACE were close to the null, β: 95% CI -4.7: 132.3 to 123.0 g for birthweight, and 0.03: -0.72 to 0.78 weeks for gestational age. CONCLUSIONS OLS models to evaluate SACE for periodontal treatment effects on birthweight and gestational age may be biased towards the null. Quantile regression may be a preferable alternative.
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Affiliation(s)
- Anwar T Merchant
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
| | - Jihong Liu
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
| | - Mark A Reynolds
- School of Dentistry, University of Maryland, Baltimore, Maryland, USA
| | - James D Beck
- Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jiajia Zhang
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina, USA
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17
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Howe CG, Claus Henn B, Eckel SP, Farzan SF, Grubbs BH, Chavez TA, Hodes TL, Faham D, Al-Marayati L, Lerner D, Quimby A, Twogood S, Richards MJ, Meeker JD, Bastain TM, Breton CV. Prenatal Metal Mixtures and Birth Weight for Gestational Age in a Predominately Lower-Income Hispanic Pregnancy Cohort in Los Angeles. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:117001. [PMID: 33141601 PMCID: PMC7608819 DOI: 10.1289/ehp7201] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
BACKGROUND Reduced fetal growth increases the risk for adverse health outcomes. Growing evidence suggests that metal exposures contribute to reduced fetal growth, but little is known about the effects of complex metal mixtures. OBJECTIVES We investigated the impact of a complex mixture of metals on birth weight for gestational age (BW for GA) in the Maternal and Developmental Risks from Environmental and Social Stressors study, a predominately lower-income Hispanic pregnancy cohort in Los Angeles, California. METHODS Cadmium (Cd), cobalt (Co), mercury (Hg), nickel (Ni), molybdenum (Mo), lead (Pb), antimony (Sb), tin (Sn), and thallium (Tl) were measured by inductively coupled plasma mass spectrometry (ICP-MS) in maternal urine samples collected in early pregnancy (median GA: 13.1 wk). Speciated urinary arsenic (As) (inorganic+monomethyl+dimethyl As) was measured by high-performance liquid chromatography coupled to ICP-MS. Primary analyses focused on a mixture of seven metals that have previously been associated individually with fetal growth (i.e., As, Cd, Co, Hg, Ni, Pb, Tl) (n=262). In exploratory analyses, we additionally examined three metals that have been less studied in relation to fetal growth (i.e., Mo, Sb, Sn). Covariate-adjusted Bayesian kernel machine regression was used to investigate metal mixture associations with BW for GA z-scores. RESULTS In primary analyses, Hg and Ni ranked highest as predictors of BW for GA. An inverse linear association was estimated for Hg, whereas a positive association was estimated for Ni at low-to-moderate concentrations. A potential interaction between Hg and Ni was also identified. In our exploratory analysis, Sb ranked highest as a predictor of BW for GA, followed by Hg and Ni. CONCLUSIONS Our findings suggest that in this understudied population, Hg may reduce fetal growth, whereas Ni may promote fetal growth. We also identified Sb as a potential metal of concern for this population, which merits additional investigation. https://doi.org/10.1289/EHP7201.
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Affiliation(s)
- Caitlin G. Howe
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Sandrah P. Eckel
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Shohreh F. Farzan
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Brendan H. Grubbs
- Department of Obstetrics and Gynecology, Keck School of Medicine, Los Angeles, California, USA
| | - Thomas A. Chavez
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Tahlia L. Hodes
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Dema Faham
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Laila Al-Marayati
- Department of Obstetrics and Gynecology, Keck School of Medicine, Los Angeles, California, USA
- Eisner Health, Los Angeles, California, USA
| | | | - Alyssa Quimby
- Department of Obstetrics and Gynecology, Keck School of Medicine, Los Angeles, California, USA
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Sara Twogood
- Department of Obstetrics and Gynecology, Keck School of Medicine, Los Angeles, California, USA
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | - John D. Meeker
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Theresa M. Bastain
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Carrie V. Breton
- Department of Preventive Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
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18
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Oktapodas Feiler M, Caserta MT, van Wijngaarden E, Thevenet-Morrison K, Hardy DJ, Zhang YV, Dozier AM, Lawrence BP, Jusko TA. Environmental Lead Exposure and Influenza and Respiratory Syncytial Virus Diagnoses in Young Children: A Test-Negative Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17207625. [PMID: 33086756 PMCID: PMC7590174 DOI: 10.3390/ijerph17207625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/13/2020] [Accepted: 10/16/2020] [Indexed: 01/05/2023]
Abstract
Experimental and epidemiological evidence suggests that environmental toxicants may influence susceptibility to influenza and respiratory syncytial virus (RSV). The objective of the present study was to estimate the association between blood lead concentrations and the odds of child influenza or RSV infection. A test-negative, case-control study was conducted among 617 children, <4 years of age, tested for influenza/RSV from 2012-2017 in Rochester, NY. There were 49 influenza cases (568 controls) and 123 RSV cases (494 controls). Blood lead concentrations reported in children's medical records were linked with influenza/RSV lab test results. Covariables were collected from medical records, birth certificates, and U.S. census data. In this sample, evidence of an association between blood lead levels and RSV or influenza diagnosis was not observed. Children with a lead level ≥1 μg/dL vs. <1 μg/dL had an adjusted odds ratio (aOR) and 95% confidence limit of 0.95 (0.60, 1.49) for RSV and 1.34 (0.65, 2.75) for influenza. In sex-specific analyses, boys with lead concentrations ≥1 μg/dL vs. <1 μg/dL had an aOR = 1.89 (1.25, 2.86) for influenza diagnosis, while the estimates were inconsistent for girls. These results are suggestive of sex-specific associations between blood lead levels and the risk of influenza, although the sample size was small.
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Affiliation(s)
- Marina Oktapodas Feiler
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA; (E.v.W.); (B.P.L.); (T.A.J.)
- Correspondence:
| | - Mary T. Caserta
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA;
| | - Edwin van Wijngaarden
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA; (E.v.W.); (B.P.L.); (T.A.J.)
- Department of Public Health Sciences, School of Medicine and Dentistry, University of Rochester, 265 Crittenden Blvd, Rochester, NY 14620, USA; (K.T.-M.); (A.M.D.)
| | - Kelly Thevenet-Morrison
- Department of Public Health Sciences, School of Medicine and Dentistry, University of Rochester, 265 Crittenden Blvd, Rochester, NY 14620, USA; (K.T.-M.); (A.M.D.)
| | - Dwight J. Hardy
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA;
| | - Yan Victoria Zhang
- Department of Pathology and Laboratory Medicine, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA;
| | - Ann M. Dozier
- Department of Public Health Sciences, School of Medicine and Dentistry, University of Rochester, 265 Crittenden Blvd, Rochester, NY 14620, USA; (K.T.-M.); (A.M.D.)
| | - B. Paige Lawrence
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA; (E.v.W.); (B.P.L.); (T.A.J.)
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA;
| | - Todd A. Jusko
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA; (E.v.W.); (B.P.L.); (T.A.J.)
- Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Ave, Rochester, NY 14642, USA;
- Department of Public Health Sciences, School of Medicine and Dentistry, University of Rochester, 265 Crittenden Blvd, Rochester, NY 14620, USA; (K.T.-M.); (A.M.D.)
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19
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Gustin K, Barman M, Stråvik M, Levi M, Englund-Ögge L, Murray F, Jacobsson B, Sandberg AS, Sandin A, Wold AE, Vahter M, Kippler M. Low-level maternal exposure to cadmium, lead, and mercury and birth outcomes in a Swedish prospective birth-cohort. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114986. [PMID: 32585550 DOI: 10.1016/j.envpol.2020.114986] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/26/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Observational studies have indicated that low-to-moderate exposure to cadmium (Cd), lead (Pb), and mercury (Hg) adversely affects birth anthropometry, but results are inconclusive. The aim of this study was to elucidate potential impact on birth anthropometry of exposure to Cd, Pb, and Hg in pregnant women, and to identify the main dietary sources. In the NICE (Nutritional impact on Immunological maturation during Childhood in relation to the Environment) birth-cohort in northern Sweden, blood and urine were collected from pregnant women in early third trimester. Cd, Pb and Hg were measured in erythrocytes (n = 584), and Cd also in urine (n = 581), by inductively coupled plasma mass spectrometry. Dietary data were collected through a semi-quantitative food frequency questionnaire administered in mid-third trimester. Birth anthropometry data were extracted from hospital records. In multivariable-adjusted spline regression models, a doubling of maternal erythrocyte Cd (median: 0.29 μg/kg) above the spline knot of 0.50 μg/kg was associated with reduced birth weight (B: -191 g; 95% CI: -315, -68) and length (-0.67 cm; -1.2, -0.14). The association with birth weight remained when the analysis was restricted to never-smokers. Likewise, a doubling of erythrocyte Hg (median 1.5 μg/kg, mainly MeHg) above 1.0 μg/kg, was associated with decreased birth weight (-59 g; -115, -3.0), and length (-0.29 cm; -0.54, -0.047). Maternal Pb (median 11 μg/kg) was unrelated to birth weight and length. Erythrocyte Cd was primarily associated with intake of plant derived foods, Pb with game meat, tea and coffee, and Hg with fish. The results indicated that low-level maternal Cd and Hg exposure were associated with poorer birth anthropometry. Further prospective studies in low-level exposed populations are warranted.
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Affiliation(s)
- Klara Gustin
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Malin Barman
- Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Mia Stråvik
- Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Michael Levi
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Linda Englund-Ögge
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Fiona Murray
- Odontology/Cariology, Umeå University, Umeå, Sweden; Sunderby Research Unit, Region Norrbotten, Luleå, Sweden
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Institute of Clinical Sciences, Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden; Department of Genetics and Bioinformatics, Domain of Health Data and Digitalisation, Institute of Public Health Oslo, Norway
| | - Ann-Sofie Sandberg
- Food and Nutrition Science, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Anna Sandin
- Department of Clinical Sciences, Unit of Pediatrics, Sunderby Research Unit, Umeå University, Umeå, Sweden
| | - Agnes E Wold
- Institute of Biomedicine, Dept, of Infectious Diseases, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Marie Vahter
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maria Kippler
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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20
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Zhang X, Wang Y, Chen X, Zhang X. Associations between prenatal sunshine exposure and birth outcomes in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 713:136472. [PMID: 31955080 PMCID: PMC7047502 DOI: 10.1016/j.scitotenv.2019.136472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/15/2019] [Accepted: 12/31/2019] [Indexed: 04/14/2023]
Abstract
This paper is one of the first to examine the associations between prenatal sunshine exposure and birth outcomes, specifically the incidence of low birth weight (LBW) and small for gestational age (SGA), based on a nationally representative birth record dataset in China. During the sample period in the 1990s, migration was limited in rural China, allowing us to address the identification challenges, like residential sorting and avoidance behaviors. We found a nonlinear relationship between the length of sunlight and birth outcomes. In particular, prenatal exposure to increasing sunshine was associated with a reduction in the incidence of LBW and SGA, especially in the second trimester during pregnancy. This finding was consistent with the clinical evidence suggesting positive effects of sunshine on birth outcomes via obtaining vitamin D or relieving maternal stress.
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Affiliation(s)
- Xin Zhang
- School of Statistics, Beijing Normal University, China
| | - Yixuan Wang
- School of Statistics, Beijing Normal University, China
| | - Xi Chen
- Department of Health Policy and Management, Yale School of Public Health, United States of America; Department of Economics, Yale University, United States of America
| | - Xun Zhang
- School of Statistics, Beijing Normal University, China; Shanghai Finance Institute, China.
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21
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Abstract
Supplemental Digital Content is available in the text. Toxic metals have been associated with lower birth weight while essential metals have been associated with higher birth weight. Evidence for other metals is either inconsistent or limited in terms of number of studies. This study analyzed 17 urinary metals, individually and as a mixture, and their association with measures of fetal growth in the LIFECODES birth cohort. Ultrasound was used to measure the abdominal circumference, head circumference, and femur length and measures were used to calculate estimated fetal weight at ~26 and ~35 weeks. We calculated the z score based on gestational age at scan, and estimated fetal weight (EFW) was combined with birth weight for longitudinal analyses. Metals were measured in samples collected at ~26 weeks. We used linear mixed-effects models to examine associations between metals and repeated measures of each outcome, controlling for covariates. Principal components analysis reduced the biomarkers to predictors that may share some commonality. We found that an interquartile range increase in selenium was inversely associated with femur length z score as well as other growth outcomes. Other essential metals, however, were associated with an increase in growth. Finally, the PCA component comprised of arsenic, mercury, and tin was associated with decreased head circumference z score (−0.14 [95% CI, −0.23, −0.05]).
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22
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Huang CY, Liu CL, Chen MH, Tsao PN, Chen CY, Chou HC, Chen PC. Maternal exposure to air pollution and the risk of small for gestational age in offspring: A population-based study in Taiwan. Pediatr Neonatol 2020; 61:231-237. [PMID: 31818536 DOI: 10.1016/j.pedneo.2019.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/11/2019] [Accepted: 11/15/2019] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Exposure to air pollution has been associated with a wide range of adverse health effects; however, few studies addressed the relationship between ambient particulate matter as well as the compositions in particulate matter such as lead and the risk of small for gestational age (SGA) in offspring. The aim of this study is to investigate the effect of maternal exposure to criteria air pollutants and the lead in total suspended particulate matter during pregnancy on SGA births in Taiwan. METHODS This population study consisted of 322,513 singleton live births in Taiwan between 1996 and 2002. Daytime (7 AM-7 PM) exposure to particulate matter ≤10 μm (PM10), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen dioxide (NO2) and ozone (O3), and monthly exposure to lead in total suspended particles (TSP) during each trimester were estimated. Generalized additive model (GAM) was used to assess the association between maternal exposure to particulate air pollutants and SGA births, taking into account potential confounders and gaseous air pollutants. RESULTS We found significant association between the highest quartile (≥75th) of maternal PM10 exposure and SGA and demonstrated a significant exposure-response relationship. Furthermore, the highest quartile (≥75th) of maternal lead exposure was also associated with SGA during the second and third trimester of pregnancy, and there was a significant exposure-response relationship between maternal lead exposure and SGA during pregnancy. CONCLUSION Maternal exposure to PM10 and lead in total suspended particulate matter during pregnancy was associated with an increased risk of SGA in offspring.
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Affiliation(s)
- Chien-Yu Huang
- Department of Pediatrics, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chia-Lin Liu
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Mei-Huei Chen
- Department of Pediatrics, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Department of Pediatrics, National Taiwan University Hospital Yun-Lin Branch, Yunlin County, Taiwan
| | - Po-Nien Tsao
- Department of Pediatrics, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; The Research Center of Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
| | - Chien-Yi Chen
- Department of Pediatrics, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hung-Chieh Chou
- Department of Pediatrics, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Pau-Chung Chen
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Department of Public Health, National Taiwan University College of Public Health, Taipei, Taiwan; Department of Environmental and Occupational Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan; Innovation and Policy Center for Population Health and Sustainable Environment, National Taiwan University College of Public Health, Taipei, Taiwan.
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23
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Horton MK, Zheng L, Williams A, Doucette JT, Svensson K, Cory-Slechta D, Tamayo-Ortiz M, Torres-Calapiz M, Bellinger D, Schnaas L, Téllez Rojo MMM, Wright R. Using the delayed spatial alternation task to assess environmentally associated changes in working memory in very young children. Neurotoxicology 2020; 77:71-79. [PMID: 31857145 PMCID: PMC10129050 DOI: 10.1016/j.neuro.2019.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 12/11/2019] [Accepted: 12/13/2019] [Indexed: 01/25/2023]
Abstract
BACKGROUND Working memory (WM) is critical for problem solving and reasoning. Beginning in infancy, children show WM capacity increasing with age but there are few validated tests of WM in very young children. Because rapid brain development may increase susceptibility to adverse impacts of prenatal neurotoxicant exposure, such as lead, tests of WM in very young children would help to delineate onset of developmental problems and windows of susceptibility. PURPOSE Our objective was to assess the feasibility of administering a Delayed Spatial Alternation Task (DSAT) to measure WM among 18- and 24-month old children enrolled in an ongoing longitudinal birth cohort study and compare DSAT performance with age and general cognitive development. We further explored whether prenatal lead exposure impacted DSAT performance. METHODS We assessed 457 mother-child pairs participating in the Programming Research in Obesity, GRowth, Environment and Social Stressors (PROGRESS) Study in Mexico City. The DSAT and Bayley Scales of Infant Development (BSID-III) were administered at 18- and 24-months. Lead was measured in maternal blood collected during pregnancy (MBPb) and in a subsample of children at 24-months (CBPb). We regressed DSAT measures on MBPb and CBPb, child sex, and maternal age, education, socioeconomic status, and household smoking. We compared DSAT performance to BSID-III performance with adjusted residuals. RESULTS 24-month children perform better on the DSAT than 18-month children; 24-month subjects reached a higher level on the DSAT (3.3 (0.86) vs. 2.4 (0.97), p < 0.01), and had a higher number of correct responses (20.3 vs. 17.2, p < 0.01). In all DSAT parameters, females performed better than males. Maternal education predicted better DSAT performance; household smoking predicted worse DSAT performance. A higher number of correct responses was associated with higher BSID-III Cognitive scales at 18 months (r = 0.20, p < 0.01) and 24 months (r = 0.27, p < 0.01). MBPb and CPBb did not significantly predict DSAT performance. CONCLUSION Improved performance on the DSAT with increasing age, the positive correlation with the BSID-III cognitive and language scales and the correlation with common sociodemographic predictors of neurodevelopment demonstrate the validity of the DSAT as a test of infant development.
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Affiliation(s)
- Megan K Horton
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
| | - Laura Zheng
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ashley Williams
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - John T Doucette
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | | | - Deborah Cory-Slechta
- Department of Environmental Medicine, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, NY, United States
| | - Marcela Tamayo-Ortiz
- Instituto Nacional de Salud Pública, Cuernavaca, Mexico; National Council of Science and Technology, CONTACY, Mexico City, Mexico
| | | | - David Bellinger
- Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Lourdes Schnaas
- Division of Research in Community Interventions, Instituto Nacional de Perinatología, Mexico City, Mexico
| | | | - Robert Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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24
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Puttabyatappa M, Banker M, Zeng L, Goodrich JM, Domino SE, Dolinoy DC, Meeker JD, Pennathur S, Song PXK, Padmanabhan V. Maternal Exposure to Environmental Disruptors and Sexually Dimorphic Changes in Maternal and Neonatal Oxidative Stress. J Clin Endocrinol Metab 2020; 105:5588078. [PMID: 31613966 PMCID: PMC7046018 DOI: 10.1210/clinem/dgz063] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 09/27/2019] [Indexed: 12/21/2022]
Abstract
CONTEXT Early pregnancy exposure to endocrine disrupting chemicals (EDCs) may contribute to poor birth outcomes through oxidative stress (OS)-mediated disruption of the maternal and fetal milieu. Most studies have investigated the effect of single EDC exposures on OS. OBJECTIVE Assess the association of uniquely weighted mixtures of early pregnancy exposures with the maternal and neonatal OS markers. DESIGN Prospective analysis of mother-infant dyads. SETTING University hospital. PARTICIPANTS 56 mother-infant dyads. MAIN OUTCOME MEASURES The association of OS markers (nitrotyrosine, dityrosine, chlorotyrosine) in maternal first trimester and term, and cord blood plasma with maternal first trimester exposure levels of each of 41 toxicants (trace elements, metals, phenols, and phthalates) from 56 subjects was analyzed using Spearman correlations and linear regression. The association of OS markers with inflammatory cytokines and birth outcomes were analyzed by Spearman correlation and linear regression analysis, respectively. Weighted mixtures of early pregnancy exposures were created by principal component analysis and offspring sex-dependent and independent associations with oxidative stress markers were assessed. RESULTS (1) An inverse relationship between levels of maternal/cord OS markers and individual EDCs was evident. In contrast, when assessed as EDC mixtures, both direct and inverse associations were evident in a sex-specific manner; (2) the maternal term OS marker, nitrotyrosine, was inversely associated with gestational age, and (3) both direct and inverse associations were evident between the 3 OS markers and individual cytokines. CONCLUSIONS Provides proof of concept that effects of exposures on OS varies when assessed as EDC mixtures versus individually.
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Affiliation(s)
| | | | - Lixia Zeng
- Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Jaclyn M Goodrich
- Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
| | - Steven E Domino
- Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan
| | - Dana C Dolinoy
- Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
| | - John D Meeker
- Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
| | | | - Peter X K Song
- Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Vasantha Padmanabhan
- Departments of Pediatrics, University of Michigan, Ann Arbor, Michigan
- Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan
- Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan
- Correspondence and Reprint Requests: Vasantha Padmanabhan, PhD, Department of Pediatrics, University of Michigan, 7510 MSRB 1, 1500 W. Medical Center Dr, Ann Arbor, Michigan 48109. E-mail:
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Flannery BM, Dolan LC, Hoffman-Pennesi D, Gavelek A, Jones OE, Kanwal R, Wolpert B, Gensheimer K, Dennis S, Fitzpatrick S. U.S. Food and Drug Administration's interim reference levels for dietary lead exposure in children and women of childbearing age. Regul Toxicol Pharmacol 2020; 110:104516. [DOI: 10.1016/j.yrtph.2019.104516] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/31/2019] [Accepted: 11/03/2019] [Indexed: 12/16/2022]
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Heiss JA, Téllez-Rojo MM, Estrada-Gutiérrez G, Schnaas L, Amarasiriwardena C, Baccarelli AA, Wright RO, Just AC. Prenatal lead exposure and cord blood DNA methylation in PROGRESS: an epigenome-wide association study. ENVIRONMENTAL EPIGENETICS 2020; 6:dvaa014. [PMID: 33324494 PMCID: PMC7722799 DOI: 10.1093/eep/dvaa014] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 05/03/2023]
Abstract
The effects of prenatal lead exposure on child development include impaired growth and cognitive function. DNA methylation might be involved in the underlying mechanisms and previous epigenome-wide association studies reported associations between lead exposure during pregnancy and cord blood methylation levels. However, it is unclear during which developmental stage lead exposure is most harmful. Cord blood methylation levels were assayed in 420 children from a Mexican pre-birth cohort using the Illumina Infinium MethylationEPIC microarray. Lead concentrations were measured in umbilical cord blood as well as in blood samples from the mothers collected at 2nd and 3rd trimester and delivery using inductively coupled plasma-mass spectrometry. In addition, maternal bone lead levels were measured in tibia and patella using X-ray fluorescence. Comprehensive quality control and preprocessing of microarray data was followed by an unbiased restriction to methylation sites with substantial variance. Methylation levels at 202 111 cytosine-phosphate-guanine sites were regressed on each exposure adjusting for child sex, leukocyte composition, batch variables, gestational age, birthweight-for-gestational-age, maternal age, maternal education and mode of delivery. We find no association between prenatal lead exposure and cord blood methylation. This null result is strengthened by a sensitivity analysis showing that in the same dataset known biomarkers for birthweight-for-gestational-age can be recovered and the fact that phenotypic associations with lead exposure have been described in the same cohort.
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Affiliation(s)
- Jonathan A Heiss
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY 10029, USA
| | - Martha M Téllez-Rojo
- Center for Nutrition and Health Research, National Institute of Public Health, University No. 655 Colonia Santa María Ahuacatitlán, Closed Los Pinos and Caminera. Cuernavaca, Morelos, Mexico
| | | | - Lourdes Schnaas
- National Institute of Perinatology, Calle Montes Urales 800, Lomas de Virreyes, Mexico City, Mexico
| | - Chitra Amarasiriwardena
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY 10029, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University Medical Center, 722 West 168th St., New York, NY, USA
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY 10029, USA
| | - Allan C Just
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1057, New York, NY 10029, USA
- Correspondence address. 17 East 102 Street Floor 3 Room 131 New York, NY 10029.
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McRae N, Bello G, Svensson K, Solano-González M, Wright RJ, Niedzwiecki MM, Calapiz MT, Amarasiriwardena C, Schnaas L, Tamayo-Ortiz M, Téllez-Rojo MM, Wright RO. Blood manganese levels during pregnancy and postpartum depression: A cohort study among women in Mexico. Neurotoxicology 2019; 76:183-190. [PMID: 31730893 DOI: 10.1016/j.neuro.2019.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/16/2019] [Accepted: 11/11/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND Occupational studies have shown an association between elevated Mn exposure and depressive symptoms. Blood Mn (BMn) naturally rises during pregnancy due to mobilization from tissues, suggesting it could contribute to pregnancy and postpartum depressive symptoms. OBJECTIVES To assess the association between BMn levels during pregnancy and postpartum depression (PPD), creating opportunities for possible future interventions. METHODS We studied 561 women from the reproductive longitudinal Programming Research in Obesity, Growth, Environment, and Social Stressors (PROGRESS) cohort in Mexico City. BMn was measured at the 2nd and 3rd trimesters, as well as delivery. The Edinburgh Postnatal Depression Scale (EPDS) was used to assess PPD symptoms at 12-months postpartum. We used a generalized linear model assuming a Poisson distribution to assess the association between BMn levels and PPD, with adjustments for age, stress and depressive symptoms during pregnancy, education, socioeconomic status, and contemporaneous blood lead levels. RESULTS The mean ± standard deviation (SD) EPDS score at 12-months postpartum was 6.51 ± 5.65, and 17.11% of women met the criteria for possible PPD (score ≥ 13). In adjusted models, BMn during the 3rd trimester (β: 0.13, 95% CI: 0.04-0.21) and BMn levels averaged at the 2nd and 3rd trimester (β: 0.14, 95% CI: 0.02-0.26) had a positive association with EPDS scores at 12 months postpartum. BMn at the 2nd trimester (β: 0.07, 95% CI: -0.09-0.22) and delivery (β: 0.03, 95% CI: -0.04-0.10) had a non-significant positive association with EPDS scores at 12-months postpartum. Stress and depressive symptoms during pregnancy was associated with higher EPDS scores at 12-months postpartum in all of the adjusted models but were only significant when either BMn during 3rd trimester or BMn averaged across 2nd and 3rd trimester was assessed as the exposure. DISCUSSION Our results demonstrate that elevated BMn levels during pregnancy predict PPD symptoms and could be a potential pathway for intervention and prevention of PPD.
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Affiliation(s)
- Nia McRae
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Ghalib Bello
- London Institute of Medical Sciences, Imperial College, London, UK
| | | | - Maritsa Solano-González
- Center for Nutrition and Health Research, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Rosalind J Wright
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Megan M Niedzwiecki
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mariana Torres Calapiz
- Division of Community Interventions Research, National Institute of Perinatology, Mexico City, Mexico
| | - Chitra Amarasiriwardena
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lourdes Schnaas
- Division of Community Interventions Research, National Institute of Perinatology, Mexico City, Mexico
| | - Marcela Tamayo-Ortiz
- Center for Nutrition and Health Research, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico; Consejo Nacional de Ciencia y Tecnología, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Martha M Téllez-Rojo
- Center for Nutrition and Health Research, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Robert O Wright
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Fong KC, Kosheleva A, Kloog I, Koutrakis P, Laden F, Coull BA, Schwartz JD. Fine Particulate Air Pollution and Birthweight: Differences in Associations Along the Birthweight Distribution. Epidemiology 2019; 30:617-623. [PMID: 31386643 PMCID: PMC6686872 DOI: 10.1097/ede.0000000000001039] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Maternal exposure to fine particulate air pollution (PM2.5) during pregnancy is associated with lower newborn birthweight, which is a risk factor for chronic disease. Existing studies typically report the average association related with PM2.5 increase, which does not offer information about potentially varying associations at different points of the birthweight distribution. METHODS We retrieved all birth records in Massachusetts between 2001 and 2013 then restricted our analysis to full-term live singletons (n = 775,768). Using the birthdate, gestational age, and residential address reported at time of birth, we estimated the average maternal PM2.5 exposure during pregnancy of each birth. PM2.5 predictions came from a model that incorporates satellite, land use, and meteorologic data. We applied quantile regression to quantify the association between PM2.5 and birthweight at each decile of birthweight, adjusted for individual and neighborhood covariates. We considered effect modification by indicators of individual and neighborhood socioeconomic status (SES). RESULTS PM2.5 was negatively associated with birthweight. An interquartile range increase in PM2.5 was associated with a 16 g [95% confidence interval (CI) = 13, 19] lower birthweight on average, 19 g (95% CI = 15, 23) lower birthweight at the lowest decile of birthweight, and 14 g (95% CI = 9, 19) lower birthweight at the highest decile. In general, the magnitudes of negative associations were larger at lower deciles. We did not find evidence of effect modification by individual or neighborhood SES. CONCLUSIONS In full-term live births, PM2.5 and birthweight were negatively associated with more severe associations at lower quantiles of birthweight.
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Affiliation(s)
- Kelvin C Fong
- From the Department of Environmental Health, Harvard T. H. Chan School of Public Health Boston, MA
| | - Anna Kosheleva
- From the Department of Environmental Health, Harvard T. H. Chan School of Public Health Boston, MA
| | - Itai Kloog
- Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Petros Koutrakis
- From the Department of Environmental Health, Harvard T. H. Chan School of Public Health Boston, MA
| | - Francine Laden
- From the Department of Environmental Health, Harvard T. H. Chan School of Public Health Boston, MA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA
| | - Brent A Coull
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA
| | - Joel D Schwartz
- From the Department of Environmental Health, Harvard T. H. Chan School of Public Health Boston, MA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA
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Khalili R, Bartell SM, Levy JI, Fabian MP, Korrick S, Vieira VM. Using Birth Cohort Data to Estimate Prenatal Chemical Exposures for All Births around the New Bedford Harbor Superfund Site in Massachusetts. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:87008. [PMID: 31449464 PMCID: PMC6792387 DOI: 10.1289/ehp4849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 07/30/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Children born near New Bedford, Massachusetts, have been prenatally exposed to multiple environmental chemicals, in part due to an older housing stock, maternal diet, and proximity to the New Bedford Harbor (NBH) Superfund site. Chemical exposure measures are not available for all births, limiting epidemiologic investigations and potential interventions. OBJECTIVE We linked biomonitoring data from the New Bedford Cohort (NBC) and birth record data to predict prenatal exposures for all contemporaneous area births. METHODS We used prenatal exposure biomarker data from the NBC, a population-based cohort of 788 mother-infant pairs born during 1993–1998 to mothers living near the NBH, linked to their corresponding Massachusetts birth record data, to build predictive models for cord serum polychlorinated biphenyls (expressed as a sum, [Formula: see text]), [Formula: see text] (DDE), hexachlorobenzene (HCB), cord blood lead (Pb), and maternal hair mercury (Hg). We applied the best fit models (highest pseudo [Formula: see text]), with multivariable smooths of continuous variables, to predict exposure biomarkers for all 10,270 births during 1993–1998 around the NBH. We used 10-fold cross validation to validate the exposure models and the bootstrap method to characterize sampling variability in the exposure predictions. RESULTS The 10-fold cross-validated [Formula: see text] for the [Formula: see text], DDE, HCB, Pb, and Hg exposure models were 0.54, 0.40, 0.34, 0.46, and 0.40, respectively. For each exposure model, multivariable smooths of continuous variables improved the fit compared with linear models. Other variables with significant effects on exposure estimates were paternal education, maternal race/ethnicity, and maternal ancestry. The resulting exposure predictions for all births had variability consistent with the NBC measured exposures. CONCLUSIONS Predictive models using multivariable smoothing explained reasonable amounts of variance in prenatal exposure biomarkers. Our analyses suggest that prenatal chemical exposures can be predicted for all contemporaneous births in the same geographic area by modeling available biomarker data for a subset of that population. https://doi.org/10.1289/EHP4849.
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Affiliation(s)
- Roxana Khalili
- Environmental Health Sciences Graduate Program, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, Irvine, California, USA
| | - Scott M. Bartell
- Environmental Health Sciences Graduate Program, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, Irvine, California, USA
- Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, Irvine, California, USA
- Department of Statistics, Donald Bren School of Information and Computer Sciences, University of California, Irvine, Irvine, California, USA
- Department of Epidemiology, School of Medicine, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, Irvine, California, USA
| | - Jonathan I. Levy
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - M. Patricia Fabian
- Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts, USA
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Susan Korrick
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Verónica M. Vieira
- Environmental Health Sciences Graduate Program, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, Irvine, California, USA
- Program in Public Health, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, Irvine, California, USA
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Sanchez-Guerra M, Peng C, Trevisi L, Cardenas A, Wilson A, Osorio-Yáñez C, Niedzwiecki MM, Zhong J, Svensson K, Acevedo MT, Solano-Gonzalez M, Amarasiriwardena CJ, Estrada-Gutierrez G, Brennan KJM, Schnaas L, Just AC, Laue HE, Wright RJ, Téllez-Rojo MM, Wright RO, Baccarelli AA. Altered cord blood mitochondrial DNA content and pregnancy lead exposure in the PROGRESS cohort. ENVIRONMENT INTERNATIONAL 2019; 125:437-444. [PMID: 30753999 PMCID: PMC6391888 DOI: 10.1016/j.envint.2019.01.077] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 05/23/2023]
Abstract
INTRODUCTION Lead (Pb) crosses the placenta and can cause oxidative stress, reduced fetal growth and neurological problems. The principal source of oxidative stress in human cells is mitochondria. Therefore, disruption of normal mitochondrial function during pregnancy may represent a primary mechanism behind the adverse effects of lead. We sought to assess the association of Pb exposure during pregnancy with mitochondrial DNA (mtDNA) content, a sensitive marker of mitochondrial function, in cord blood. MATERIALS AND METHODS This study comprised mother-infant pairs from the Programming Research in Obesity, Growth, Environment and Social Stressors (PROGRESS) study, a prospective birth-cohort that enrolled 1050 pregnant women from Mexico City who were receiving prenatal care between December 2007 and July 2011. Quantitative PCR was used to calculate relative MtDNA content (mitochondrial-to-nuclear DNA ratio (mtDNA/nDNA)) in cord blood. Lead concentrations in both maternal blood (2nd and 3rd trimester and at delivery day) and in cord blood were measured by ICP-MS. Multivariable regression models adjusting for multiple confounders were fitted with 410 mother-infant pairs for whom complete data for mtDNA content, lead levels, and covariates were available. RESULTS Maternal blood Pb measured in the second (mean 3.79 μg/dL, SD 2.63; β = 0.059, 95% CI 0.008, 0.111) and third trimester (mean 3.90 μg/dL; SD 2.84; β = 0.054, 95% CI 0.002, 0.107) during pregnancy and PB in cord blood (mean 3.50 μg/dL, SD 2.59; β = 0.050, 95% CI 0.004; 0.096) were associated with increased cord blood mtDNA content (mean 1.46, SD 0.44). In two-way interaction analyses, cord blood Pb marginally interacted with gestational age leading to an increase in mtDNA content for pre-term births (Benjamini-Hochberg False Discovery Rate correction; BH-FDR = 0.08). CONCLUSION This study shows that lead exposure in pregnancy alters mtDNA content in cord blood; therefore, alteration of mtDNA content might be a mechanism underlying the toxicity of lead.
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Affiliation(s)
- Marco Sanchez-Guerra
- Department of Developmental Neurobiology, National Institute of Perinatology, Montes Urales 800, Lomas Virreyes, Mexico City 11000, Mexico.
| | - Cheng Peng
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Letizia Trevisi
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA
| | - Andres Cardenas
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim HealthCare Institute, Boston, MA, USA
| | - Ander Wilson
- Department of Statistics, Colorado State University, Fort Collins, CO 80523, USA
| | - Citlalli Osorio-Yáñez
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Center for Nutrition and Health Research, National Institute of Public Health, Ministry of Health, Cuernavaca, Morelos, Mexico
| | - Megan M Niedzwiecki
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jia Zhong
- Department of Environmental Health Sciences, Columbia University, Mailman School of Public Health, New York, NY, USA
| | - Katherine Svensson
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Maria Teresa Acevedo
- Department of Developmental Neurobiology, National Institute of Perinatology, Montes Urales 800, Lomas Virreyes, Mexico City 11000, Mexico
| | - Maritsa Solano-Gonzalez
- Center for Nutrition and Health Research, National Institute of Public Health, Ministry of Health, Cuernavaca, Morelos, Mexico
| | | | - Guadalupe Estrada-Gutierrez
- Department of Developmental Neurobiology, National Institute of Perinatology, Montes Urales 800, Lomas Virreyes, Mexico City 11000, Mexico
| | - Kasey J M Brennan
- Department of Environmental Health Sciences, Columbia University, Mailman School of Public Health, New York, NY, USA
| | - Lourdes Schnaas
- Department of Developmental Neurobiology, National Institute of Perinatology, Montes Urales 800, Lomas Virreyes, Mexico City 11000, Mexico
| | - Allan C Just
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hannah E Laue
- Department of Environmental Health Sciences, Columbia University, Mailman School of Public Health, New York, NY, USA
| | - Rosalind J Wright
- Kravis Children's Hospital, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Martha Maria Téllez-Rojo
- Center for Nutrition and Health Research, National Institute of Public Health, Ministry of Health, Cuernavaca, Morelos, Mexico
| | - Robert O Wright
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia University, Mailman School of Public Health, New York, NY, USA.
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Placental metal concentrations and birth outcomes: The Environment and Childhood (INMA) project. Int J Hyg Environ Health 2019; 222:468-478. [PMID: 30638867 DOI: 10.1016/j.ijheh.2018.12.014] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 12/30/2018] [Accepted: 12/31/2018] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To examine the association of placental levels of arsenic (As), cadmium (Cd), mercury (Hg), lead (Pb), manganese (Mn), and chromium (Cr) with birth outcomes (birth weight, length, and head circumference, low birth weight [LBW], gestational age, preterm delivery, and small for gestational age [SGA]) in mother-child pairs from the Environment and Childhood (INMA) Project in Spain. METHODS Metal concentrations were measured in placenta tissue samples randomly selected from five INMA cohorts. Data on birth outcomes were obtained from medical records. Associations were assessed in a sub-sample of 327 mother-infant pairs by regression models adjusted for confounding factors and for all metals simultaneously. Effect modification by sex was also evaluated. RESULTS Elevated placental Cd levels (>5.79 vs. <3.30 ng/g) were associated with reduced birth weight (-111.8 g, 95%CI = -215.6; -8.06, p-trend = 0.01) and length (-0.62 cm, 95%CI = -1.20; -0.04, p-trend = 0.02), while a 10% increase in Cd was associated with 1.21-fold increased odds (95%CI = 1.01; 1.43) of LBW in the global sample but with 14% lower odds (95%CI = 0.78; 0.96) of preterm delivery in males (Pinteraction = 0.10). Detected (vs. undetected) Hg was associated with reduced head circumference (-0.49 cm, 95%CI = -1.00; 0.03) in females (Pinteraction = 0.03). A 10% increase in placental Mn was associated with slight increases in gestational age (0.04 weeks, 95%CI = 0.01; 0.07) in the global sample and in head circumference (0.05 cm, 95%CI = -0.01; 0.10) in females (Pinteraction = 0.03). Elevated Cr levels (>99.6 vs. <56.1 ng/g) were associated with reduced birth length (-0.68 cm, 95%CI = -1.33; -0.04, p-trend = 0.02) and slightly increased gestational age (0.35 weeks, 95%CI = -0.07; 0.77, p-trend = 0.08) in the global sample. As and Pb were detected in few placentas (27% and 13%, respectively) and were not associated with any studied birth outcome. CONCLUSIONS Data suggest that in utero exposure to Cd, Hg, and Cr could adversely affect fetal growth, whereas Mn and Cr appear to have a positive effect on gestational age. Given the relatively small number of subjects, sex-specific associations should be interpreted with caution.
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Rahman ML, Valeri L, Kile ML, Mazumdar M, Mostofa G, Qamruzzaman Q, Rahman M, Baccarelli A, Liang L, Hauser R, Christiani DC. Investigating causal relation between prenatal arsenic exposure and birthweight: Are smaller infants more susceptible? ENVIRONMENT INTERNATIONAL 2017; 108:32-40. [PMID: 28787626 PMCID: PMC5623127 DOI: 10.1016/j.envint.2017.07.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 06/03/2017] [Accepted: 07/30/2017] [Indexed: 05/21/2023]
Abstract
BACKGROUND Shortening of gestation and intrauterine growth restriction (IUGR) are the two main determinants of birthweight. Low birthweight has been linked with prenatal arsenic exposure, but the causal relation between arsenic and birthweight is not well understood. OBJECTIVES We applied a quantile causal mediation analysis approach to determine the association between prenatal arsenic exposure and birthweight in relation to shortening of gestation and IUGR, and whether the susceptibility of arsenic exposure varies by infant birth sizes. METHODS In a longitudinal birth cohort in Bangladesh, we measured arsenic in drinking water (n=1182) collected at enrollment and maternal toenails (n=1104) collected ≤1-month postpartum using inductively coupled plasma mass spectrometry. Gestational age was determined using ultrasound at ≤16weeks' gestation. Demographic information was collected using a structured questionnaire. RESULTS Of 1184 singleton livebirths, 16.4% (n=194) were low birthweight (<2500g), 21.9% (n=259) preterm (<37weeks' gestation), and 9.2% (n=109) both low birthweight and preterm. The median concentrations of arsenic in drinking water and maternal toenails were 2.2μg/L (range: below the level of detection [LOD]-1400) and 1.2μg/g (range: <LOD-46.6), respectively. Prenatal arsenic exposure was negatively associated with birthweight, where the magnitude of the association varied across birthweight percentiles. The effect of arsenic on birthweight mediated via shortening of gestation affected all infants irrespective of birth sizes (β range: 10th percentile=-19.7g [95% CI: -26.7, -13.3] to 90th percentile=-10.9g [95% CI: -18.5, -5.9] per natural log water arsenic increase), whereas the effect via pathways independent of gestational age affected only the smaller infants (β range: 10th percentile=-28.0g [95% CI: -43.8, -9.9] to 20th percentile=-14.9g [95% CI: -30.3, -1.7] per natural log water arsenic increase). Similar pattern was observed for maternal toenail arsenic. CONCLUSIONS The susceptibility of prenatal arsenic exposure varied by infant birth sizes, placing smaller infants at greater risk of lower birthweight by shortening of gestation and possibly growth restriction. It is important to mitigate prenatal arsenic exposure to improve perinatal outcomes in Bangladesh.
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Affiliation(s)
- Mohammad L Rahman
- Harvard T.H. Chan School of Public Health, Department of Environmental Health, Boston, MA, USA
| | - Linda Valeri
- McLean Hospital, Belmont, Massachusetts, USA, Harvard Medical School, Boston, MA, USA
| | - Molly L Kile
- Oregon State University, College of Public Health and Human Sciences, Corvallis, OR, USA
| | - Maitreyi Mazumdar
- Harvard T.H. Chan School of Public Health, Department of Environmental Health, Boston, MA, USA
| | | | | | | | - Andrea Baccarelli
- Columbia University, Mailman School of Public Health, Department of Environmental Health, New York, NY, USA
| | - Liming Liang
- Harvard T.H. Chan School of Public Health, Department of Biostatistics, Boston, MA, USA
| | - Russ Hauser
- Harvard T.H. Chan School of Public Health, Department of Environmental Health, Boston, MA, USA; Harvard T.H. Chan School of Public Health, Department of Epidemiology, Boston, MA, USA
| | - David C Christiani
- Harvard T.H. Chan School of Public Health, Department of Environmental Health, Boston, MA, USA; Harvard T.H. Chan School of Public Health, Department of Epidemiology, Boston, MA, USA.
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Burris HH, Hacker MR. Birth outcome racial disparities: A result of intersecting social and environmental factors. Semin Perinatol 2017; 41:360-366. [PMID: 28818300 PMCID: PMC5657505 DOI: 10.1053/j.semperi.2017.07.002] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Adverse birth outcomes such as preterm birth, low-birth weight, and infant mortality continue to disproportionately affect black and poor infants in the United States. Improvements in healthcare quality and access have not eliminated these disparities. The objective of this review was to consider societal factors, including suboptimal education, income inequality, and residential segregation, that together lead to toxic environmental exposures and psychosocial stress. Many toxic chemicals, as well as psychosocial stress, contribute to the risk of adverse birth outcomes and black women often are more highly exposed than white women. The extent to which environmental exposures combine with stress and culminate in racial disparities in birth outcomes has not been quantified but is likely substantial. Primary prevention of adverse birth outcomes and elimination of disparities will require a societal approach to improve education quality, income equity, and neighborhoods.
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Affiliation(s)
- Heather H. Burris
- Department of Neonatology, Beth Israel Deaconess Medical Center, Department of Pediatrics, Harvard Medical School, Boston, MA, USA,Department of Obstetrics, Gynecology and Reproductive Biology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA,Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA,Corresponding Author: 330 Brookline Ave, RO 318 Neonatology, Beth Israel Deaconess Medical Center, Boston, MA, 02215, USA; ; 617-667-3276 (phone); 617-667-7040 (fax)
| | - Michele R. Hacker
- Department of Obstetrics, Gynecology and Reproductive Biology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA,Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
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34
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Rodosthenous RS, Burris HH, Sanders AP, Just AC, Dereix AE, Svensson K, Solano M, Téllez-Rojo MM, Wright RO, Baccarelli AA. Second trimester extracellular microRNAs in maternal blood and fetal growth: An exploratory study. Epigenetics 2017; 12:804-810. [PMID: 28758828 DOI: 10.1080/15592294.2017.1358345] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Healthy feto-maternal communication is critical during pregnancy and is orchestrated by the placenta. Dysfunction of the placenta leads to fetal growth complications; however, the underlying biological mechanisms have yet to be fully elucidated. Circulating extracellular microRNAs (exmiRNAs) in the blood have been implicated in cell-to-cell communication. Therefore, exmiRNAs may provide useful biological information about communication between the mother, the fetus, and the placenta during pregnancy. We used logistic regression to determine the association of exmiRNAs with abnormal fetal growth by comparing mothers of infants classified as small-for-gestational age (SGA) (n = 36) and large-for-gestational age (LGA) (n = 13) to appropriate-for-gestational age (AGA), matched by gestational age at delivery and infant sex. In addition, we used linear regression to determine associations between exmiRNAs and birth weight-for-gestational age (BWGA) z-score (n = 100), adjusting for maternal age, body mass index, and parity. We found that higher levels of miR-20b-5p, miR-942-5p, miR-324-3p, miR-223-5p, and miR-127-3p in maternal serum were associated with lower odds for having a SGA vs. AGA infant, and higher levels of miR-661, miR-212-3p, and miR-197-3p were associated with higher odds for having a LGA vs. AGA infant. We also found associations between miR-483-5p, miR-10a-5p, miR-204-5p, miR-202-3p, miR-345-5p, miR-885-5p, miR-127-3p, miR-148b-3p, miR-324-3p, miR-1290, miR-597-5p, miR-139-5p, miR-215-5p, and miR-99b-5p and BWGA z-score. We also found sex-specific associations with exmiRNAs and fetal growth. Our findings suggest that exmiRNAs circulating in maternal blood at second trimester are associated with fetal growth. Validation of our findings may lead to the development of minimally-invasive biomarkers of fetal growth during pregnancy.
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Affiliation(s)
- Rodosthenis S Rodosthenous
- a Laboratory of Environmental Epigenetics, Exposure, Epidemiology and Risk Program ; Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston , MA , USA
| | - Heather H Burris
- a Laboratory of Environmental Epigenetics, Exposure, Epidemiology and Risk Program ; Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston , MA , USA.,b Department of Neonatology , Beth Israel Deaconess Medical Center and Division of Newborn Medicine, Boston Children's Hospital and Harvard Medical School , Boston , MA , USA
| | - Alison P Sanders
- c Department of Environmental Medicine and Public Health , Icahn School of Medicine at Mount Sinai , New York , NY , USA
| | - Allan C Just
- c Department of Environmental Medicine and Public Health , Icahn School of Medicine at Mount Sinai , New York , NY , USA
| | - Alexandra E Dereix
- a Laboratory of Environmental Epigenetics, Exposure, Epidemiology and Risk Program ; Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston , MA , USA
| | - Katherine Svensson
- c Department of Environmental Medicine and Public Health , Icahn School of Medicine at Mount Sinai , New York , NY , USA
| | - Maritsa Solano
- d Center for Evaluation Research and Surveys, National Institute of Public Health , Cuernavaca , Morelos , Mexico
| | - Martha M Téllez-Rojo
- d Center for Evaluation Research and Surveys, National Institute of Public Health , Cuernavaca , Morelos , Mexico
| | - Robert O Wright
- c Department of Environmental Medicine and Public Health , Icahn School of Medicine at Mount Sinai , New York , NY , USA
| | - Andrea A Baccarelli
- a Laboratory of Environmental Epigenetics, Exposure, Epidemiology and Risk Program ; Department of Environmental Health, Harvard T.H. Chan School of Public Health , Boston , MA , USA
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35
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de Water E, Proal E, Wang V, Medina SM, Schnaas L, Téllez-Rojo MM, Wright RO, Tang CY, Horton MK. Prenatal manganese exposure and intrinsic functional connectivity of emotional brain areas in children. Neurotoxicology 2017; 64:85-93. [PMID: 28610744 DOI: 10.1016/j.neuro.2017.06.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/30/2017] [Accepted: 06/01/2017] [Indexed: 10/19/2022]
Abstract
Manganese (Mn) is an essential trace metal that is neurotoxic at high levels of exposure. Disruption of brain maturation processes during the prenatal period may have lasting consequences. During this critical period, the developing human brain is uniquely vulnerable to exposure to environmental toxicants such as Mn, and prenatal Mn exposure has been associated with changes in brain areas involved in emotion processing and regulation. The goal of the present pilot study was to examine whether prenatal Mn exposure is associated with changes in the intrinsic functional connectivity (iFC) of the brain in childhood, focusing on changes in emotional brain areas. We selected 15 subjects (age 6-7 years) from an ongoing longitudinal birth cohort study to participate in a resting state functional magnetic resonance imaging (fMRI) study. Prenatal Mn exposure was determined from maternal blood collected during the 2nd and 3rd trimesters of pregnancy. We used seed-based correlation analyses and independent component analyses to examine whether prenatal Mn exposure was associated with the iFC of the brain in children. We found that the right globus pallidus showed reduced iFC with the dorsal anterior cingulate cortex and lateral prefrontal cortex in children who were exposed to higher prenatal Mn levels, after controlling for sociodemographic confounders (SES, maternal education, child sex, home environment support) and environmental confounders (prenatal lead exposure and air pollution). These findings suggest that prenatal Mn exposure is associated with reduced iFC of brain areas involved in emotion processing and regulation in children. Future studies should investigate whether this reduced iFC mediates the association between prenatal Mn exposure and emotional dysfunction in childhood.
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Affiliation(s)
- Erik de Water
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
| | - Erika Proal
- National Institute of Perinatology (INPer), Mexico City, Mexico
| | - Victoria Wang
- Departments of Radiology and Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | | | - Lourdes Schnaas
- National Institute of Perinatology (INPer), Mexico City, Mexico
| | | | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Cheuk Y Tang
- Departments of Radiology and Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Megan K Horton
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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36
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Luo Y, McCullough LE, Tzeng JY, Darrah T, Vengosh A, Maguire RL, Maity A, Samuel-Hodge C, Murphy SK, Mendez MA, Hoyo C. Maternal blood cadmium, lead and arsenic levels, nutrient combinations, and offspring birthweight. BMC Public Health 2017; 17:354. [PMID: 28438148 PMCID: PMC5402649 DOI: 10.1186/s12889-017-4225-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 04/05/2017] [Indexed: 12/24/2022] Open
Abstract
Background Cadmium (Cd), lead (Pb) and arsenic (As) are common environmental contaminants that have been associated with lower birthweight. Although some essential metals may mitigate exposure, data are inconsistent. This study sought to evaluate the relationship between toxic metals, nutrient combinations and birthweight among 275 mother-child pairs. Methods Non-essential metals, Cd, Pb, As, and essential metals, iron (Fe), zinc (Zn), selenium (Se), copper (Cu), calcium (Ca), magnesium (Mg), and manganese (Mn) were measured in maternal whole blood obtained during the first trimester using inductively coupled plasma mass spectrometry. Folate concentrations were measured by microbial assay. Birthweight was obtained from medical records. We used quantile regression to evaluate the association between toxic metals and nutrients due to their underlying wedge-shaped relationship. Ordinary linear regression was used to evaluate associations between birth weight and toxic metals. Results After multivariate adjustment, the negative association between Pb or Cd and a combination of Fe, Se, Ca and folate was robust, persistent and dose-dependent (p < 0.05). However, a combination of Zn, Cu, Mn and Mg was positively associated with Pb and Cd levels. While prenatal blood Cd and Pb were also associated with lower birthweight. Fe, Se, Ca and folate did not modify these associations. Conclusion Small sample size and cross-sectional design notwithstanding, the robust and persistent negative associations between some, but not all, nutrient combinations with these ubiquitous environmental contaminants suggest that only some recommended nutrient combinations may mitigate toxic metal exposure in chronically exposed populations. Larger longitudinal studies are required to confirm these findings. Electronic supplementary material The online version of this article (doi:10.1186/s12889-017-4225-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yiwen Luo
- Bioinformatics Research Center, North Carolina State University, Raleigh, NC, USA.,Department of Statistics, North Carolina State University, Raleigh, NC, USA
| | | | - Jung-Ying Tzeng
- Bioinformatics Research Center, North Carolina State University, Raleigh, NC, USA. .,Department of Statistics, North Carolina State University, Raleigh, NC, USA. .,Department of Statistics, National Cheng-Kung University, Tainan, Taiwan.
| | - Thomas Darrah
- School of Earth Sciences, The Ohio State University, Columbus, OH, USA
| | - Avner Vengosh
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Rachel L Maguire
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27533, USA
| | - Arnab Maity
- Department of Statistics, North Carolina State University, Raleigh, NC, USA
| | | | | | | | - Cathrine Hoyo
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27533, USA.
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37
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Burris HH, Baccarelli AA. Air pollution and in utero programming of poor fetal growth. Epigenomics 2017; 9:213-216. [PMID: 28234022 DOI: 10.2217/epi-2017-0008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Heather H Burris
- Department of Neonatology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.,Departments of Pediatrics & Obstetrics, Gynecology & Reproductive Biology, Harvard Medical School, Boston, MA 02215, USA.,Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA 02115, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
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