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Laue HE, Lanphear BP, Calafat AM, Cecil KM, Chen A, Xu Y, Kalkwarf HJ, Madan JC, Karagas MR, Yolton K, Fleisch AF, Braun JM. Time-varying associations of gestational and childhood triclosan with pubertal and adrenarchal outcomes in early adolescence. Environ Epidemiol 2024; 8:e305. [PMID: 38617430 PMCID: PMC11008648 DOI: 10.1097/ee9.0000000000000305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/07/2024] [Indexed: 04/16/2024] Open
Abstract
Background Triclosan is an endocrine-disrupting chemical, but associations with pubertal outcomes remain unclear. We examined associations of gestational and childhood triclosan with adolescent hormone concentrations and pubertal stage. Methods We quantified urinary triclosan concentrations twice during pregnancy and seven times between birth and 12 years in participants recruited from Cincinnati, OH (2003-2006). We averaged concentrations across pregnancy and childhood and separately considered individual exposure periods in multiple informant models. At 12 years, we measured serum hormone concentrations (males [n = 72] and females [n = 84]-dehydroepiandrosterone-sulfate, luteinizing hormone, follicle-stimulating hormone; males-testosterone; females-estradiol). Also at age 12 years, participants self-reported physical development and menarchal timing. We estimated associations (95% confidence interval) of triclosan with hormone concentrations, more advanced physical development, and age at menarche. Results For females, each doubling of childhood triclosan was associated with 16% lower estradiol concentrations (-29%, 0%), with stronger associations for measures closer to adolescence. We found suggestive evidence that higher triclosan at any age was associated with ~10% (for gestational triclosan: -18%, -2%) lower follicle-stimulating hormone concentrations among males and early postnatal (1-3 years) triclosan was associated with 63% (5%, 96%) lower odds of advanced pubic hair development in females. In multiple informant models, each doubling of gestational triclosan concentrations was associated with 5% (0%, 9%) earlier age at menarche, equivalent to 5.5 months. Conclusion Gestational and childhood triclosan concentrations were related to some pubertal outcomes including hormone concentrations and age at menarche. Our findings highlight the relevance of elucidating potential sex-specific and time-dependent actions of triclosan.
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Affiliation(s)
- Hannah E. Laue
- Department of Epidemiology, Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire
| | - Bruce P. Lanphear
- Faculty of Health Sciences, Simon Fraser University, Vancouver, British Columbia, Canada
| | - Antonia M. Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Kim M. Cecil
- Department of Radiology, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine Cincinnati, Cincinnati, Ohio
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Yingying Xu
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine Cincinnati, Cincinnati, Ohio
| | - Heidi J. Kalkwarf
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine Cincinnati, Cincinnati, Ohio
| | - Juliette C. Madan
- Department of Epidemiology, Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire
- Departments of Pediatrics and Psychiatry, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire
| | - Margaret R. Karagas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire
| | - Kimberly Yolton
- Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine Cincinnati, Cincinnati, Ohio
| | - Abby F. Fleisch
- Center for Interdisciplinary and Population Health Research, Maine Institute for Research, Portland, Maine
- Pediatric Endocrinology and Diabetes, Maine Medical Center, Portland, Maine
| | - Joseph M. Braun
- Department of Epidemiology, Brown University, Providence, Rhode Island
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Kim MR, Jung MK, Jee HM, Ha EK, Lee S, Han MY, Yoo EG. The association between phthalate exposure and pubertal development. Eur J Pediatr 2024; 183:1675-1682. [PMID: 38206396 DOI: 10.1007/s00431-023-05416-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/19/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024]
Abstract
Antiandrogenic effect of phthalates have been reported; however, results regarding the effect of phthalate exposure in pubertal children have been inconsistent. We aimed to investigate the relationship between phthalate exposure and pubertal development, especially whether high molecular weight phthalates (HMWP) and low molecular weight phthalates (LMWP) are differently associated in boys and girls. Urinary phthalate metabolites (4 HMWPs and 3 LMWPs) in Korean children (236 boys and 202 girls, aged 10 to 12 years) were measured. The association between phthalate levels and pubertal development (pubertal stages self-reported by parents and sex steroid levels) was analyzed by generalized linear regression after adjusting for age, body mass index z score, and premature birth and/or low birth weight. Both the highest quartile of HMWP (Q4 vs Q1, adjusted odds ratio [OR], 0.238; 95% confidence interval [CI], 0.090-0.627; p = 0.004) and LMWP (Q4 vs Q1, adjusted OR, 0.373; 95% CI, 0.151-0.918; p = 0.032) were inversely associated with pubertal stages in boys, whereas the highest quartile of LMWP (Q4 vs Q1, adjusted OR, 2.431; 95% CI, 1.024-5.768; p = 0.044) was significantly related to advanced pubertal stages in girls. Testosterone levels in boys were significantly lower at the highest quartile of HMWP (adjusted β = - 0.251; 95% CI, - 0.476 to - 0.027; p = 0.028). However, in girls, we could not find any significant relationship between HMWP or LMWP and estradiol levels. CONCLUSIONS Our results suggest that phthalate exposure, especially exposure to the HMWP, may have inverse association with male pubertal development. Further investigation is required to verify the relationship of phthalate exposure and pubertal development in girls. WHAT IS KNOWN • Exposure to phthalates may have antiandrogenic effects. • Studies on the association between phthalates and pubertal development have yielded inconsistent results. WHAT IS NEW • Phthalate levels were inversely associated with self-reported pubertal stages in boys. • Exposure to phthalates might have a negative influence on male pubertal development.
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Affiliation(s)
- Mi Ra Kim
- Department of Pediatrics, CHA Ilsan Medical Center, CHA University School of Medicine, Goyang, Korea
| | - Mo Kyung Jung
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Hye Mi Jee
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Eun Kyo Ha
- Department of Pediatrics, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Seoul, Korea
| | - Sanghoo Lee
- Center for Companion Biomarker, Seoul Clinical Laboratories Healthcare, Yongin, Korea
| | - Man Yong Han
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.
| | - Eun-Gyong Yoo
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.
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3
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Wang L, Ye X, Liu J. Effects of pharmaceutical and personal care products on pubertal development: Evidence from human and animal studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123533. [PMID: 38341062 DOI: 10.1016/j.envpol.2024.123533] [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: 09/20/2023] [Revised: 01/20/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Pharmaceutical and personal care products (PPCPs) include a wide range of drugs, personal care products and household chemicals that are produced and used in significant quantities. The safety of PPCPs has become a growing concern in recent decades due to their ubiquitous presence in the environment and potential risks to human health. PPCPs have been detected in various human biological samples, including those from children and adolescents, at concentrations ranging from several ng/L to several thousand μg/L. Epidemiological studies have shown associations between exposure to PPCPs and changes in the timing of puberty in children and adolescents. Animal studies have shown that exposure to PPCPs results in advanced or delayed pubertal onset. Mechanisms by which PPCPs regulate pubertal development include alteration of the hypothalamic kisspeptin and GnRH networks, disruption of steroid hormones, and modulation of metabolic function and epigenetics. Gaps in knowledge and further research needs include the assessment of environmental exposure to pharmaceuticals in children and adolescents, low-dose and long-term effects of exposure to PPCPs, and the modes of action of PPCPs on pubertal development. In summary, this comprehensive review examines the potential effects of exposure to PPCPs on pubertal development based on evidence from human and animal studies.
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Affiliation(s)
- Linping Wang
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaoqing Ye
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Cox B, Wauters N, Rodríguez-Carrillo A, Portengen L, Gerofke A, Kolossa-Gehring M, Lignell S, Lindroos AK, Fabelova L, Murinova LP, Desalegn A, Iszatt N, Schillemans T, Åkesson A, Colles A, Den Hond E, Koppen G, Van Larebeke N, Schoeters G, Govarts E, Remy S. PFAS and Phthalate/DINCH Exposure in Association with Age at Menarche in Teenagers of the HBM4EU Aligned Studies. TOXICS 2023; 11:711. [PMID: 37624216 PMCID: PMC10459167 DOI: 10.3390/toxics11080711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Early puberty has been found to be associated with adverse health outcomes such as metabolic and cardiovascular diseases and hormone-dependent cancers. The decrease in age at menarche observed during the past decades has been linked to an increased exposure to endocrine-disrupting compounds (EDCs). Evidence for the association between PFAS and phthalate exposure and menarche onset, however, is inconsistent. We studied the association between PFAS and phthalate/DINCH exposure and age at menarche using data of 514 teenagers (12 to 18 years) from four aligned studies of the Human Biomonitoring for Europe initiative (HBM4EU): Riksmaten Adolescents 2016-2017 (Sweden), PCB cohort (follow-up; Slovakia), GerES V-sub (Germany), and FLEHS IV (Belgium). PFAS concentrations were measured in blood, and phthalate/DINCH concentrations in urine. We assessed the role of each individual pollutant within the context of the others, by using different multi-pollutant approaches, adjusting for age, age- and sex-standardized body mass index z-score and household educational level. Exposure to di(2-ethylhexyl) phthalate (DEHP), especially mono(2-ethyl-5-hydroxyhexyl) phthalate (5OH-MEHP), was associated with an earlier age at menarche, with estimates per interquartile fold change in 5OH-MEHP ranging from -0.34 to -0.12 years in the different models. Findings from this study indicated associations between age at menarche and some specific EDCs at concentrations detected in the general European population, but due to the study design (menarche onset preceded the chemical measurements), caution is needed in the interpretation of causality.
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Affiliation(s)
- Bianca Cox
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Natasha Wauters
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Andrea Rodríguez-Carrillo
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
- Toxicological Centre, University of Antwerp, Universiteitsplein, 1, 2610 Wilrijk, Belgium
| | - Lützen Portengen
- Institute for Risk Assessment Sciences, Utrecht University, 3584 Utrecht, The Netherlands;
| | - Antje Gerofke
- German Environment Agency, Umweltbundesamt (UBA), 14195 Berlin, Germany; (A.G.); (M.K.-G.)
| | - Marike Kolossa-Gehring
- German Environment Agency, Umweltbundesamt (UBA), 14195 Berlin, Germany; (A.G.); (M.K.-G.)
| | - Sanna Lignell
- Swedish Food Agency, 751 26 Uppsala, Sweden; (S.L.); (A.K.L.)
| | | | - Lucia Fabelova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, 831 01 Bratislava, Slovakia; (L.F.); (L.P.M.)
| | - Lubica Palkovicova Murinova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, 831 01 Bratislava, Slovakia; (L.F.); (L.P.M.)
| | - Anteneh Desalegn
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, 0456 Oslo, Norway; (A.D.); (N.I.)
| | - Nina Iszatt
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, 0456 Oslo, Norway; (A.D.); (N.I.)
| | - Tessa Schillemans
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden; (T.S.); (A.Å.)
| | - Agneta Åkesson
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden; (T.S.); (A.Å.)
| | - Ann Colles
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Elly Den Hond
- Provincial Institute of Hygiene, Provincial Research Centre for Environment and Health, 2023 Antwerp, Belgium;
| | - Gudrun Koppen
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Nicolas Van Larebeke
- Analytical, Environmental and Geo-Chemistry, Vrije Universiteit Brussel, 1050 Brussels, Belgium;
| | - Greet Schoeters
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
- Department of Biomedical Sciences, University of Antwerp, 2000 Antwerp, Belgium
| | - Eva Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Sylvie Remy
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
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Anastasiadis X, Matsas A, Panoskaltsis T, Bakas P, Papadimitriou DT, Christopoulos P. Impact of Chemicals on the Age of Menarche: A Literature Review. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1234. [PMID: 37508731 PMCID: PMC10378553 DOI: 10.3390/children10071234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/01/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
A growing body of evidence suggests that chemicals interfere with the age of onset of menarche. We conducted a review in order to demonstrate the relationship between several categories of chemicals and menarche. We searched for English language papers using the Medline/PubMed database until April 2023. The chemical factors found to affect menarche were prenatal and antenatal smoke, phthalates, phenols, organochlorines, perfluoroalkyls and polyfluoroalkyls, metals, air pollutants and polybrominated diphenyl ethers. Low or high exposure to each chemical compound could affect the age of menarche, leading to early or delayed menarche. Furthermore, the results show that intrauterine exposure may have a different impact from antenatal exposure. There is evidence that endocrine-disrupting chemicals affect the age of menarche, but more research needs to be conducted.
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Affiliation(s)
- Xristos Anastasiadis
- Second Department of Obstetrics and Gynecology, "Aretaieion" Hospital, Faculty of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Alkis Matsas
- Second Department of Obstetrics and Gynecology, "Aretaieion" Hospital, Faculty of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Theodoros Panoskaltsis
- Second Department of Obstetrics and Gynecology, "Aretaieion" Hospital, Faculty of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Panagiotis Bakas
- Second Department of Obstetrics and Gynecology, "Aretaieion" Hospital, Faculty of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Dimitrios T Papadimitriou
- Second Department of Obstetrics and Gynecology, "Aretaieion" Hospital, Faculty of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Panagiotis Christopoulos
- Second Department of Obstetrics and Gynecology, "Aretaieion" Hospital, Faculty of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
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Lambré C, Barat Baviera JM, Bolognesi C, Chesson A, Cocconcelli PS, Crebelli R, Gott DM, Grob K, Lampi E, Mengelers M, Mortensen A, Rivière G, Silano (until 21 December 2020†) V, Steffensen I, Tlustos C, Vernis L, Zorn H, Batke M, Bignami M, Corsini E, FitzGerald R, Gundert‐Remy U, Halldorsson T, Hart A, Ntzani E, Scanziani E, Schroeder H, Ulbrich B, Waalkens‐Berendsen D, Woelfle D, Al Harraq Z, Baert K, Carfì M, Castoldi AF, Croera C, Van Loveren H. Re-evaluation of the risks to public health related to the presence of bisphenol A (BPA) in foodstuffs. EFSA J 2023; 21:e06857. [PMID: 37089179 PMCID: PMC10113887 DOI: 10.2903/j.efsa.2023.6857] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
In 2015, EFSA established a temporary tolerable daily intake (t-TDI) for BPA of 4 μg/kg body weight (bw) per day. In 2016, the European Commission mandated EFSA to re-evaluate the risks to public health from the presence of BPA in foodstuffs and to establish a tolerable daily intake (TDI). For this re-evaluation, a pre-established protocol was used that had undergone public consultation. The CEP Panel concluded that it is Unlikely to Very Unlikely that BPA presents a genotoxic hazard through a direct mechanism. Taking into consideration the evidence from animal data and support from human observational studies, the immune system was identified as most sensitive to BPA exposure. An effect on Th17 cells in mice was identified as the critical effect; these cells are pivotal in cellular immune mechanisms and involved in the development of inflammatory conditions, including autoimmunity and lung inflammation. A reference point (RP) of 8.2 ng/kg bw per day, expressed as human equivalent dose, was identified for the critical effect. Uncertainty analysis assessed a probability of 57-73% that the lowest estimated Benchmark Dose (BMD) for other health effects was below the RP based on Th17 cells. In view of this, the CEP Panel judged that an additional uncertainty factor (UF) of 2 was needed for establishing the TDI. Applying an overall UF of 50 to the RP, a TDI of 0.2 ng BPA/kg bw per day was established. Comparison of this TDI with the dietary exposure estimates from the 2015 EFSA opinion showed that both the mean and the 95th percentile dietary exposures in all age groups exceeded the TDI by two to three orders of magnitude. Even considering the uncertainty in the exposure assessment, the exceedance being so large, the CEP Panel concluded that there is a health concern from dietary BPA exposure.
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7
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Kuiper JR, Pan S, Lanphear BP, Calafat AM, Chen A, Cecil KM, Xu Y, Yolton K, Kalkwarf HJ, Braun JM, Buckley JP. Associations of maternal gestational urinary environmental phenols concentrations with bone mineral density among 12-year-old children in the HOME Study. Int J Hyg Environ Health 2023; 248:114104. [PMID: 36525700 PMCID: PMC9898141 DOI: 10.1016/j.ijheh.2022.114104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Early life environmental exposures may affect bone mass accrual in childhood, but only one study has assessed the role of environmental phenols on child bone health. METHODS We used data from 223 mother-child dyads enrolled in the Health Outcomes and Measures of the Environment (HOME) Study (Cincinnati, OH; 2003-2006). We quantified benzophenone-3, bisphenol A (BPA), 2,5-dichlorophenol, and triclosan in maternal urine collected at 16- and 26-weeks gestation and calculated the average of creatinine-adjusted concentrations. We performed dual x-ray absorptiometry at age 12 years and calculated Z-scores for whole body (less head), total hip, femoral neck, and 1/3rd distal radius bone mineral content (BMC) and areal bone mineral density (aBMD) as well as ultra-distal radius aBMD and spine BMC and bone mineral apparent density (BMAD). We estimated covariate-adjusted associations per doubling of maternal urinary environmental phenol concentrations in linear regression models. We also examined effect measure modification by child's sex and estimated associations of the environmental phenol mixture with BMC and aBMD using quantile g-computation. RESULTS We observed generally null associations for all analytes and bone measures. Yet, in adjusted models, higher urinary 2,5-dichlorophenol concentrations were associated with higher 1/3rd distal radius BMC (β: 0.09; 95% CI: 0.02, 0.17) and aBMD (β: 0.09; 95% CI: 0.02, 0.17) Z-scores in the overall sample. In sex-stratified analyses, the magnitude of the BMC association was positive for females (β: 0.16; 95% CI: 0.06, 0.26) and null for males (β: 0.02; 95% CI: 0.08, 0.13). The environmental phenol mixture was associated with greater 1/3rd distal radius BMC and aBMD Z-scores in both sexes, which was mostly driven by benzophenone-3 in males and 2,5-dichlorophenol in females. CONCLUSION In this prospective cohort study, we observed generally null associations for environmental phenols with BMC and aBMD at age 12 years. While there was a positive association of 2,5-dichlorophenol concentrations during fetal development with distal radius BMC and aBMD at age 12 years, future studies utilizing methods capable of differentiating cortical and trabecular bone are needed to elucidate potential mechanisms and implications for bone strength and microarchitecture.
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Affiliation(s)
- Jordan R Kuiper
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Shudi Pan
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, Vancouver, BC, Canada.
| | - Antonia M Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, USA.
| | - Kim M Cecil
- Department of Radiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Yingying Xu
- Department of Radiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Kimberly Yolton
- Department of Radiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Heidi J Kalkwarf
- Department of Radiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Joseph M Braun
- Department of Epidemiology, Brown University, Providence, RI, USA.
| | - Jessie P Buckley
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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8
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Rivera-Núñez Z, Kinkade CW, Zhang Y, Rockson A, Bandera EV, Llanos AAM, Barrett ES. Phenols, Parabens, Phthalates and Puberty: a Systematic Review of Synthetic Chemicals Commonly Found in Personal Care Products and Girls' Pubertal Development. Curr Environ Health Rep 2022; 9:517-534. [PMID: 35867279 PMCID: PMC9742306 DOI: 10.1007/s40572-022-00366-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW Exposure to endocrine disrupting chemicals through personal care products (PCPs) is widespread and may disrupt hormone-sensitive endpoints, such as timing of puberty. Given the well-documented (and ongoing) decline in age at menarche in many populations, we conducted a systematic review of the epidemiological literature on exposure to chemicals commonly found in PCPs (including certain phthalates, phenols, and parabens) in relation to girls' pubertal development. RECENT FINDINGS The preponderance of research on this topic has examined phthalate exposures with the strongest evidence indicating that prenatal monoethyl phthalate (MEP) concentrations may be associated with slightly earlier timing of puberty, including age at menarche. Findings examining peri-pubertal phthalate exposures and pubertal outcomes were less consistent as were studies of prenatal and peri-pubertal phenol exposures. Very few studies had examined parabens in relation to girls' pubertal development. Common study limitations included potential exposure misclassification related to use of spot samples and/or mistimed biomarker assessment with respect to the outcomes. The role of body size as a mediator in these relationships remains unresolved. Overall, evidence of associations between chemical exposures in PCPs and girls' pubertal development was conflicting. When associations were observed, effect sizes were small. Nevertheless, given the many environmental, social, and behavioral factors in the modern environment that may act synergistically to accelerate timing of puberty, even marginal changes may be cause for concern, with implications for cancer risk, mental health, and cardiometabolic disease in later life.
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Affiliation(s)
- Zorimar Rivera-Núñez
- Environmental and Occupational Health Sciences Institute, Rutgers University, 170 Frelinghuysen Rd, Piscataway, NJ, 08854, USA. .,Department of Biostatistics and Epidemiology, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ, 08854, USA.
| | - Carolyn W Kinkade
- Environmental and Occupational Health Sciences Institute, Rutgers University, 170 Frelinghuysen Rd, Piscataway, NJ, 08854, USA
| | - Yingting Zhang
- Robert Wood Johnson Library of the Health Sciences, Rutgers University, New Brunswick, NJ, 08901, USA
| | - Amber Rockson
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Elisa V Bandera
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ, 08854, USA.,Cancer Epidemiology and Health Outcomes, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, 08903, USA
| | - Adana A M Llanos
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ, 08854, USA.,Department of Epidemiology, Mailman School of Public Health, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Emily S Barrett
- Environmental and Occupational Health Sciences Institute, Rutgers University, 170 Frelinghuysen Rd, Piscataway, NJ, 08854, USA.,Department of Biostatistics and Epidemiology, Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ, 08854, USA
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9
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Giannini CM, Huang B, Chandler DW, Fassler CS, Schwartz RC, Biro FM, Pinney SM. The Association between Sex Hormones, Pubertal Milestones and Benzophenone-3 Exposure, Measured by Urinary Biomarker or Questionnaire. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:2135-2148. [PMID: 34313174 PMCID: PMC8903022 DOI: 10.1080/09603123.2021.1947990] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Experimental studies have suggested benzophenone-3 (BP-3), a sunscreen ingredient, may have endocrine-disrupting properties. A cohort of girls were recruited at ages 6-7 years and returned semi-annually for pubertal maturation staging, provided blood for serum hormone analyses [estradiol, estrone, testosterone, dehydroepiandrosterone-sulfate (DHEA-S)], and urine to measure BP-3 concentrations. We found a significant negative linear association between amount of reported sunscreen use and testosterone levels at the onset of puberty (N = 157, adjusted β = -0.0163, 97.5% CI:-0.0300,-0.0026). The 2nd quartile of the BP-3 biomarker had earlier thelarche compared to the 1st quartile (N = 282, adjusted HR = 1.584, 97.5% CI:1.038,2.415). Results suggest that higher report of sunscreen use may be associated with lower testosterone levels at thelarche and a non-linear relationship between the BP-3 urinary biomarker and onset of puberty, although the clinical significance of the finding is limited and may be a random effect. Improved methods of BP-3 exposure characterization are needed.
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Affiliation(s)
- Courtney M Giannini
- Department of Environmental and Public Health Sciences, University of Cincinnati, Cincinnati, Ohio, USA
| | - Bin Huang
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Donald W Chandler
- Department of Environmental and Public Health Sciences, University of Cincinnati, Cincinnati, Ohio, USA
| | - Cecily S Fassler
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | | | - Frank M Biro
- Division of Adolescent Medicine, Cincinnati Children's Hospital Medical CenterCincinnati, Ohio, USA
| | - Susan M Pinney
- Department of Environmental and Public Health Sciences, University of Cincinnati, Cincinnati, Ohio, USA
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10
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Yüksek Acinikli K, Erbaş İM, Besci Ö, Demir K, Abacı A, Böber E. Has the Frequency of Precocious Puberty and Rapidly Progressive Early Puberty Increased in Girls During the COVID-19 Pandemic? J Clin Res Pediatr Endocrinol 2022; 14:302-307. [PMID: 35633642 PMCID: PMC9422906 DOI: 10.4274/jcrpe.galenos.2022.2022-12-11] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 04/24/2022] [Indexed: 01/16/2023] Open
Abstract
Objective Early puberty is development of secondary sex characteristics earlier than the expected normal age range. We subjectively observed an increased frequency of early puberty during the Coronavirus disease-2019 (COVID-19) lockdown and aimed to show the clinical, demographic characteristics of the cases and the change in its incidence. Methods Female patients with central precocious puberty (CPP, n=28) and rapidly progressive early puberty (RPEP, n=61), presenting to our clinic before (January 2019-March 2020) and during the COVID-19 pandemic (April 2020-June 2021) were included. Results Among 28 CPP cases, six (21%) presented before the pandemic lockdown, whereas 22 (79%) were diagnosed during the COVID-19 pandemic lockdown. While RPEP was seen in 16 (26%) patients before the pandemic, 45 (74%) patients were diagnosed during the lockdown period. Presentation with menarche was seen in 15 RPEP patients; two (13%) were in the prepandemic period and 13 (87%) were in the lockdown period. Chronological age, bone age, bone age to chronological age ratio, height, weight, and body mass index standard deviation scores of patients with RPEP and CPP were similar between the prepandemic and pandemic period. Conclusion In this cohort, the frequency of CPP and RPP cases were significantly (p<0.001) increased during the COVID-19 pandemic, possibly due to environmental changes.
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Affiliation(s)
- Kübra Yüksek Acinikli
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Endocrinology, İzmir, Turkey
| | - İbrahim Mert Erbaş
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Endocrinology, İzmir, Turkey
| | - Özge Besci
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Endocrinology, İzmir, Turkey
| | - Korcan Demir
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Endocrinology, İzmir, Turkey
| | - Ayhan Abacı
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Endocrinology, İzmir, Turkey
| | - Ece Böber
- Dokuz Eylül University Faculty of Medicine, Department of Pediatric Endocrinology, İzmir, Turkey
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11
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Predieri B, Alves CAD, Iughetti L. New insights on the effects of endocrine-disrupting chemicals on children. J Pediatr (Rio J) 2022; 98 Suppl 1:S73-S85. [PMID: 34921754 PMCID: PMC9510934 DOI: 10.1016/j.jped.2021.11.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Endocrine disrupting chemicals (EDCs) are present in many areas and materials of the common life, and exposure to these chemicals can occur from products to personal care, from air and food. This review aims to summarize the more recent epidemiological findings for the impact of EDCs on endocrine system health in children, including effects in growth, metabolism, sexual development, and reproduction. SOURCES The MEDLINE database (PubMed) was searched on August 24th, 2021, filtering for EDCs, endocrine disruptors, children, and humans. SUMMARY OF THE FINDINGS Intrauterine exposure of EDCs can have transgenerational effects, thus laying the foundation for disease in later life. The dose-response relationship may not always be predictable as even low-level exposures that may occur in everyday life can have significant effects on a susceptible individual. Although individual compounds have been studied in detail, the effects of a combination of these chemicals are yet to be studied to understand the real-life situation where human beings are exposed to a "cocktail effect" of these EDCs. Epidemiological studies in humans suggest EDCs' effects on prenatal growth, thyroid function, glucose metabolism, obesity, puberty, and fertility mainly through epigenetic mechanisms. CONCLUSIONS EDCs cause adverse effects in animals, and their effects on human health are now known and irrefutable. Because people are typically exposed to multiple endocrine disruptors, assessing public health effects is difficult. Legislation to ban EDCs and protect especially pregnant women and young children is required and needs to be revised and adjusted to new developments on a regular basis.
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Affiliation(s)
- Barbara Predieri
- University of Modena and Reggio Emilia, Department of Medical and Surgical Sciences of the Mothers, Children and Adults, Pediatric Unit, Modena, Italy
| | - Crésio A D Alves
- Universidade Federal da Bahia (UFBA), Faculdade de Medicina, Hospital Universitário Prof. Edgard Santos, Unidade de Endocrinologia Pediátrica, Salvador, BA, Brazil
| | - Lorenzo Iughetti
- University of Modena and Reggio Emilia, Department of Medical and Surgical Sciences of the Mothers, Children and Adults, Pediatric Unit, Modena, Italy.
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Uldbjerg CS, Koch T, Lim YH, Gregersen LS, Olesen CS, Andersson AM, Frederiksen H, Coull BA, Hauser R, Juul A, Bräuner EV. OUP accepted manuscript. Hum Reprod Update 2022; 28:687-716. [PMID: 35466359 PMCID: PMC9434240 DOI: 10.1093/humupd/dmac013] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 01/25/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Globally, the ages at pubertal onset for girls and boys have been decreasing during recent decades, partly attributed to excess body fat accumulation. However, a growing body of literature has recognized that endocrine disrupting chemicals (EDCs) may play an important role in this global trend, but the association has not yet been fully established. OBJECTIVE AND RATIONALE EDCs can interfere with normal hormone function and metabolism and play a role in pubertal onset. We aimed to systematically identify and evaluate the current evidence on the timing of pubertal onset in girls and boys following prenatal or postnatal exposures to xenobiotic EDCs. SEARCH METHODS Following PRISMA guidelines, we performed a systematic literature search of original peer-reviewed publications in the PubMed database through a block search approach using a combination of index MeSH and free text search terms. Publications were considered if they covered biomarkers of prenatal or postnatal exposures to xenobiotic EDCs (European Commission's list of category 1 EDCs) measured in maternal or child biospecimen and pubertal onset defined by the progression of the following milestones (and assessed in terms of the following measures): menarche (age), thelarche (Tanner staging) and pubarche (Tanner staging), in girls, and genital stage (Tanner staging), testicular volume (ml) and pubarche (Tanner staging), in boys. OUTCOMES The literature search resulted in 703 references, of which we identified 52 publications fulfilling the eligibility criteria for the qualitative trend synthesis and 23 publications for the meta-analysis. The qualitative trend synthesis provided data on 103 combinations of associations between prenatal or postnatal exposure to EDC compounds groups and puberty outcomes and the meta-analysis enabled 18 summary risk estimates of meta-associations. WIDER IMPLICATIONS Statistically significant associations in the qualitative trend synthesis suggested that postnatal exposure to phthalates may be associated with earlier thelarche and later pubarche. However, we did not find consistent evidence in the meta-analysis for associations between timing of pubertal onset in girls and boys and exposures to any of the studied xenobiotic EDCs. We were not able to identify specific pre- or postnatal windows of exposure as particularly critical and susceptible for effects of EDCs. Current evidence is subject to several methodological challenges and inconsistencies and evidence on specific exposure-outcome associations remains too scarce to firmly confirm EDC exposure as a risk factor for changes in age of pubertal onset in the general child population. To create a more uniform foundation for future comparison of evidence and to strengthen pooled studies, we recommend the use of more standardized approaches in the choice of statistical analyses, with exposure transformations, and in the definitions and assessments of puberty outcomes. The impact of mixtures of EDC exposures on the association also remains unestablished and would be valuable to elucidate for prenatal and postnatal windows of exposure. Future large, longitudinal epidemiological studies are needed to clarify the overall association.
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Affiliation(s)
| | | | - Y -H Lim
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - L S Gregersen
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- The International Research and Research Training Centre in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - C S Olesen
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- The International Research and Research Training Centre in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - A -M Andersson
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- The International Research and Research Training Centre in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - H Frederiksen
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- The International Research and Research Training Centre in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - B A Coull
- Department of Biostatistics, T.H. Chan School of Public Health, Harvard University, Cambridge, MA, USA
| | - R Hauser
- Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Cambridge, MA, USA
| | - A Juul
- Correspondence address. Department of Growth and Reproduction, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark. Tel: +45-3545-5085; E-mail: (A.J.); Tel: +45-4242-8550; E-mail: (E.V.B.)
| | - E V Bräuner
- Correspondence address. Department of Growth and Reproduction, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark. Tel: +45-3545-5085; E-mail: (A.J.); Tel: +45-4242-8550; E-mail: (E.V.B.)
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13
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Concentrations of urinary parabens and reproductive hormones in Iranian women: Exposure and risk assessment. Toxicol Rep 2022; 9:1894-1900. [DOI: 10.1016/j.toxrep.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/12/2022] [Accepted: 10/01/2022] [Indexed: 11/06/2022] Open
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Association of phthalates and early menarche in Korean adolescent girls from Korean National Environmental Health Survey (KoNEHS) 2015-2017. Ann Occup Environ Med 2021; 33:e4. [PMID: 34754465 PMCID: PMC7952777 DOI: 10.35371/aoem.2021.33.e4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/30/2020] [Indexed: 12/13/2022] Open
Abstract
Background Phthalates are one of renowned endocrine-disrupting chemicals, although inconsistent results are present around their effect on onset of menarche. Our hypothesis is that pre-pubertal exposure to phthalates is associated with acceleration of menarche. Methods We analyzed a total of 236 middle school (7th to 9th grade) girls from Korean National Environmental Health Survey 2015-2017. We used multiple linear regression to investigate impact of eight phthalate metabolites on age of menarche. We also conducted logistic regression to evaluate association between phthalate metabolite concentrations and early onset of menarche, adjusting for grade, maternal age of menarche and body mass index (BMI). Results In linear regression analysis, no significant association was found for any phthalate metabolites. In logistic regression analysis, however, odds ratios (ORs) of early menarche were significantly increased for mono-n-butyl phthalate (MnBP) and for sum of all phthalates. When compared to group with the lowest level, high concentration group for MnBP presented significantly increased odds of early menarche (OR: 2.09; 95% confidence interval [CI]: 1.03, 4.23) after adjusting for grade, maternal age of menarche and BMI. Furthermore, high concentrations of sum of all phthalates were associated with significant increase of OR of early menarche (OR: 2.22; 95% CI: 1.10, 4.49) after adjustment, compared to the lowest concentration group. Conclusions Results of our study suggest that exposure to phthalates around puberty may be associated with increased risk of early menarche.
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Barbieri F, Inzaghi E, Caruso Nicoletti M, Cassio A, Grandone A, DE Sanctis L, Bizzarri C. Biological clock and heredity in pubertal timing: what is new? Minerva Pediatr (Torino) 2021; 73:537-548. [PMID: 34264049 DOI: 10.23736/s2724-5276.21.06511-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Puberty represents a milestone during a person's life and is characterized by several physical and psychological changes which end with the achievement of sexual maturation and of fertility. Puberty onset depends on a series of sophisticated, not completely understood, mechanisms certainly involving Gonadotropin-Releasing Hormone (GnRH) and its effects on pituitary gonadotropins. As recent evidence has demonstrated that pubertal timing deeply affects future adult health life, much efforts have been performed in order to clarify the exact actors involved in the onset and progression of puberty. Genetic factors are undoubtedly essential players in the regulation of pubertal development, accounting for approximately 50-80% of its variability. Mutations in genes such as KISS1, MKRN3 and DLK1 have been associated with central precocious puberty. Interestingly, a possible involvement of epigenetic mechanisms has been proposed as additional element able to affect pubertal phase. Environmental factors have recently attracted much attention. Indeed, an overall decrease in the age of puberty has been observed in the last decades. As genetic factors require long time to exert their effect, other players, such as environmental ones, may be involved. Special focus has been posed on nutritional status, endocrine-disrupting chemicals with non-conclusive results. Pubertal timing deeply affects future life, suggesting the need to clarify mechanisms driving pubertal onset and progression, in order to identify tailored therapeutic strategies and targets.
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Affiliation(s)
- Flavia Barbieri
- Pediatric Section, Department of translational Medical Sciences, Federico II University of Naples, Naples, Italy
| | - Elena Inzaghi
- Department of Pediatrics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Manuela Caruso Nicoletti
- Pediatric Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Alessandra Cassio
- Pediatric Unit, Department of Medical and Surgical Sciences, S.Orsola-Malpighi University Hospital, Bologna, Italy
| | - Anna Grandone
- Departement of Women's and Children's Health and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Napoli, Italy
| | - Luisa DE Sanctis
- Pediatric Endocrinology Unit, Department of Public Health and Pediatric Sciences, University of Turin, Turin, Italy
| | - Carla Bizzarri
- Unit of Endocrinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy -
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Meng H, Zhou Y, Jiang Y. Association of bisphenol A with puberty timing: a meta-analysis. REVIEWS ON ENVIRONMENTAL HEALTH 2020; aheadofprint:459-466. [PMID: 34651495 DOI: 10.1515/reveh-2020-0091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVES The results of existing studies on bisphenol A (BPA) and puberty timing did not reach a consensus. Thereby we performed this meta-analytic study to explore the association between BPA exposure in urine and puberty timing. METHODS Meta-analysis of the pooled odds ratios (OR), prevalence ratios (PR) or hazards ratios (HR) with 95% confidence intervals (CI) were calculated and estimated using fixed-effects or random-effects models based on between-study heterogeneity. RESULTS A total of 10 studies involving 5621 subjects were finally included. The meta-analysis showed that BPA exposure was weakly associated with thelarche (PR: 0.96, 95% CI: 0.93-0.99), while no association was found between BPA exposure and menarche (HR: 0.99, 95% CI: 0.89-1.12; OR: 1.02, 95% CI: 0.73-1.43), and pubarche (OR: 1.00, 95% CI: 0.79-1.26; PR: 1.00, 95% CI: 0.95-1.05). CONCLUSIONS There was no strong correlation between BPA exposure and puberty timing. Further studies with large sample sizes are needed to verify the relationship between BPA and puberty timing.
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Affiliation(s)
- Hui Meng
- School of Nursing, Qingdao University, Qingdao, Shandong, China
| | - Yunping Zhou
- School of Nursing, Qingdao University, Qingdao, Shandong, China
| | - Yunxia Jiang
- School of Nursing, Qingdao University, Qingdao, Shandong, China
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Sears CG, Braun JM. Phthalate Exposure, Adolescent Health, and the Need for Primary Prevention. Endocrinol Metab Clin North Am 2020; 49:759-770. [PMID: 33153678 DOI: 10.1016/j.ecl.2020.08.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Phthalates, a class of endocrine-disrupting chemicals, are used widely in many consumer products, and exposure can interfere with a range of hormonal functions during early life. These disruptions may alter development during late childhood and adolescence. This article discusses the potential effects of phthalate exposure on adiposity, puberty, and neurodevelopment during late childhood and adolescence. It also highlights studies of behavioral interventions to reduce phthalate exposures and the roles of health care professionals and policy makers in preventing phthalate exposure.
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Affiliation(s)
- Clara G Sears
- Department of Epidemiology, Brown University School of Public Health, Box G-S121-2, 121 South Main Street, Providence, RI 02912, USA.
| | - Joseph M Braun
- Department of Epidemiology, Brown University School of Public Health, Box G-S121-2, 121 South Main Street, Providence, RI 02912, USA. https://twitter.com/JosephMBraun1
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18
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Bigambo FM, Sun H, Yan W, Wu D, Xia Y, Wang X, Wang X. Association between phenols exposure and earlier puberty in children: A systematic review and meta-analysis. ENVIRONMENTAL RESEARCH 2020; 190:110056. [PMID: 32805251 DOI: 10.1016/j.envres.2020.110056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/21/2020] [Accepted: 08/01/2020] [Indexed: 05/19/2023]
Abstract
OBJECTIVE To identify the association between phenolic chemicals and the risk of earlier puberty based on the available evidence by systematic review and meta-analysis. METHODS Databases PubMed, Web of Science, and Cochrane Library were searched and retrieved appropriate journal articles on the association between phenols exposure and earlier puberty in children published before February 14, 2020. Stata software version 12.0 and Excel were used for statistical analysis. RESULTS Nine studies were included in the meta-analysis with total subjects of 4737. All the subjects included in our studies were girls. The pooled estimate has shown the association between 2, 5- dichrolophenol exposure, and earlier puberty in children with effect size (ES) 1.13 (95% CI: 1.06, 1.20). Exposed to other types of phenolic chemicals such as bisphenol A, Triclosan, Benzophenone-3 were not statistically significant associated with the risk of earlier puberty in children with the overall pooled estimates of ES of 1.09 (95%CI: 0.88, 1.35), ES 1.05(95% CI: 0.96, 1.15), and ES 0.98 (95% CI: 0.88, 1.10) respectively. CONCLUSION Our results portray that phenols particularly 2, 5- dichlorophenol exposure might be associated with the risk of earlier puberty in children. Also, caution should be taken to other type of phenolic chemicals since in subgroup analysis some individual studies have shown a positive relationship between bisphenol A, Triclosan and Benzophenone-3 exposures, and the risk of earlier puberty in children. Future cohort studies should be conducted with more sample sizes to determine the relationship between 2, 5- dichlorophenol, and the risk of earlier puberty in children of all gender.
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Affiliation(s)
- Francis Manyori Bigambo
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Hanqing Sun
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Wu Yan
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Di Wu
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Xu Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Nanjing Children's Hospital Affiliated to Nanjing Medical University, 210008, Nanjing, China.
| | - Xinru Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.
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Guth M, Pollock T, Fisher M, Arbuckle TE, Bouchard MF. Concentrations of urinary parabens and reproductive hormones in girls 6-17 years living in Canada. Int J Hyg Environ Health 2020; 231:113633. [PMID: 33045491 DOI: 10.1016/j.ijheh.2020.113633] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/28/2020] [Accepted: 10/01/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Parabens are chemical substances used as preservatives for their antibacterial and antifungal properties in many personal care products, and sometimes in pharmaceutical and food products. Concerns for adverse human health effects arise from animal studies showing endocrine disrupting effects, such as changes in the timing of puberty and alterations in reproductive hormone activity. Our objective was to examine the association between urinary concentrations of parabens and serum concentrations of estradiol, progesterone, follicle stimulating hormone [FSH], and luteinizing hormone [LH]) in girls from the general population. METHODS We conducted a cross-sectional study in girls ages 6-17 years, using data from the Canadian Health Measures Survey (2014-2015). The association between concentrations of creatinine-standardized urinary parabens and serum hormone concentrations was analyzed with multivariable linear regressions, adjusting for potential confounders (i.e., age, body mass index, ethnicity, household income, sampling season; prenatal exposure to cigarette smoke for girls 6-11 years). RESULTS The 382 girls and teens included in the study had a mean age of 11.0 years; 76% were white and 73% had a body mass index in the range normal/underweight. Most participants (92%) had least one paraben detected in their urine. Girls with higher urinary paraben concentrations had significantly lower serum concentrations of estradiol, LH, and FSH, but not of progesterone. A doubling in the sum of urinary parabens was associated with 5.8% lower estradiol (95% CI -9.3, -2.1), 4.2% lower FSH (95% CI -7.9, -0.3), and 10.8% lower LH (95% CI -17.4, -3.7). The analysis of individual compounds showed that all four parabens were similarly associated with lower concentrations of estradiol, FSH, and LH. We further analyzed younger girls (6-11 years) and found that urinary parabens were similarly associated with lower estradiol and LH (doubling in the sum of parabens associated with 5.9% lower estradiol [95% CI -10.5, -1.0] and 10.9% lower LH [95% CI -20.2, -0.6]). In this younger subgroup, the association estimate for FSH, however, was attenuated and no longer statistically significant. DISCUSSION We observed that exposure to parabens was associated with reduced concentrations of circulating reproductive hormones, suggesting that these chemicals could alter the development and function of the endocrine system in girls. Further prospective research using long-term assessment of parabens exposure and of reproductive development may better determine endocrine disrupting effects of parabens.
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Affiliation(s)
- Margot Guth
- Department of Environmental and Occupational Health, School of Public Health, Universite de Montreal, Montreal, Quebec, Canada
| | - Tyler Pollock
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Mandy Fisher
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Tye E Arbuckle
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Maryse F Bouchard
- Department of Environmental and Occupational Health, School of Public Health, Universite de Montreal, Montreal, Quebec, Canada; CHU Sainte-Justine Research Centre Mother and Child University Hospital Center, Canada.
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Roberts SA, Kaiser UB. GENETICS IN ENDOCRINOLOGY: Genetic etiologies of central precocious puberty and the role of imprinted genes. Eur J Endocrinol 2020; 183:R107-R117. [PMID: 32698138 PMCID: PMC7682746 DOI: 10.1530/eje-20-0103] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/03/2020] [Indexed: 12/19/2022]
Abstract
Pubertal timing is regulated by the complex interplay of genetic, environmental, nutritional and epigenetic factors. Criteria for determining normal pubertal timing, and thus the definition of precocious puberty, have evolved based on published population studies. The significance of the genetic influence on pubertal timing is supported by familial pubertal timing and twin studies. In contrast to the many monogenic causes associated with hypogonadotropic hypogonadism, only four monogenic causes of central precocious puberty (CPP) have been described. Loss-of-function mutations in Makorin Ring Finger Protein 3(MKRN3), a maternally imprinted gene on chromosome 15 within the Prader-Willi syndrome locus, are the most common identified genetic cause of CPP. More recently, several mutations in a second maternally imprinted gene, Delta-like noncanonical Notch ligand 1 (DLK1), have also been associated with CPP. Polymorphisms in both genes have also been associated with the age of menarche in genome-wide association studies. Mutations in the genes encoding kisspeptin (KISS1) and its receptor (KISS1R), potent activators of GnRH secretion, have also been described in association with CPP, but remain rare monogenic causes. CPP has both short- and long-term health implications for children, highlighting the importance of understanding the mechanisms contributing to early puberty. Additionally, given the role of mutations in the imprinted genes MKRN3 and DLK1 in pubertal timing, other imprinted candidate genes should be considered for a role in puberty initiation.
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Affiliation(s)
- Stephanie A. Roberts
- Division of Endocrinology, Boston Children’s Hospital, Boston, Massachusetts
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Ursula B. Kaiser
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
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Kumar M, Sarma DK, Shubham S, Kumawat M, Verma V, Prakash A, Tiwari R. Environmental Endocrine-Disrupting Chemical Exposure: Role in Non-Communicable Diseases. Front Public Health 2020; 8:553850. [PMID: 33072697 PMCID: PMC7541969 DOI: 10.3389/fpubh.2020.553850] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/18/2020] [Indexed: 01/09/2023] Open
Abstract
The exponential growth of pollutant discharges into the environment due to increasing industrial and agricultural activities is a rising threat for human health and a biggest concern for environmental health globally. Several synthetic chemicals, categorized as potential environmental endocrine-disrupting chemicals (EDCs), are evident to affect the health of not only livestock and wildlife but also humankind. In recent years, human exposure to environmental EDCs has received increased awareness due to their association with altered human health as documented by several epidemiological and experimental studies. EDCs are associated with deleterious effects on male and female reproductive health; causes diabetes, obesity, metabolic disorders, thyroid homeostasis and increase the risk of hormone-sensitive cancers. Sewage effluents are a major source of several EDCs, which eventually reach large water bodies and potentially contaminate the drinking water supply. Similarly, water storage material such as different types of plastics also leaches out EDCs in drinking Water. Domestic wastewater containing pharmaceutical ingredients, metals, pesticides and personal care product additives also influences endocrine activity. These EDCs act via various receptors through a variety of known and unknown mechanisms including epigenetic modification. They differ from classic toxins in several ways such as low-dose effect, non-monotonic dose and trans-generational effects. This review aims to highlight the hidden burden of EDCs on human health and discusses the non-classical toxic properties of EDCs in an attempt to understand the magnitude of the exposome on human health. Present data on the environmental EDCs advocate that there may be associations between human exposure to EDCs and several undesirable health outcomes that warrants further human bio-monitoring of EDCs.
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Affiliation(s)
- Manoj Kumar
- National Institute for Research in Environmental Health, Indian Council of Medical Research, Bhopal, India
| | - Devojit Kumar Sarma
- National Institute for Research in Environmental Health, Indian Council of Medical Research, Bhopal, India
| | - Swasti Shubham
- National Institute for Research in Environmental Health, Indian Council of Medical Research, Bhopal, India
| | - Manoj Kumawat
- National Institute for Research in Environmental Health, Indian Council of Medical Research, Bhopal, India
| | - Vinod Verma
- Department of Stem Cell Research Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Anil Prakash
- National Institute for Research in Environmental Health, Indian Council of Medical Research, Bhopal, India
| | - Rajnarayan Tiwari
- National Institute for Research in Environmental Health, Indian Council of Medical Research, Bhopal, India
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Abstract
The relationship between obesity and puberty remains controversial. Whereas cross-sectional and longitudinal studies show a clear shift toward earlier puberty in obese girls, the trend in obese boys remains less obvious. Overweight boys mature earlier whereas obese boys mature later compared to healthy weight boys. Newer epidemiologic studies attempt to address these knowledge gaps. This review provides a detailed overview of the recent literature regarding secular trends in pubertal onset and tempo, and the connection with obesity. Additionally, this review summarizes potential mediators that permit obesity to promote early puberty. Other factors such as socioeconomic status, in utero exposures, nutritional, and even endocrine disrupting chemicals can cause perturbation of both metabolism and the endocrine axis that can ultimately have effects on pubertal development.
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23
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Rock CL, Thomson C, Gansler T, Gapstur SM, McCullough ML, Patel AV, Andrews KS, Bandera EV, Spees CK, Robien K, Hartman S, Sullivan K, Grant BL, Hamilton KK, Kushi LH, Caan BJ, Kibbe D, Black JD, Wiedt TL, McMahon C, Sloan K, Doyle C. American Cancer Society guideline for diet and physical activity for cancer prevention. CA Cancer J Clin 2020; 70:245-271. [PMID: 32515498 DOI: 10.3322/caac.21591] [Citation(s) in RCA: 270] [Impact Index Per Article: 67.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/21/2019] [Accepted: 10/21/2019] [Indexed: 12/14/2022] Open
Abstract
The American Cancer Society (ACS) publishes the Diet and Physical Activity Guideline to serve as a foundation for its communication, policy, and community strategies and, ultimately, to affect dietary and physical activity patterns among Americans. This guideline is developed by a national panel of experts in cancer research, prevention, epidemiology, public health, and policy, and reflects the most current scientific evidence related to dietary and activity patterns and cancer risk. The ACS guideline focuses on recommendations for individual choices regarding diet and physical activity patterns, but those choices occur within a community context that either facilitates or creates barriers to healthy behaviors. Therefore, this committee presents recommendations for community action to accompany the 4 recommendations for individual choices to reduce cancer risk. These recommendations for community action recognize that a supportive social and physical environment is indispensable if individuals at all levels of society are to have genuine opportunities to choose healthy behaviors. This 2020 ACS guideline is consistent with guidelines from the American Heart Association and the American Diabetes Association for the prevention of coronary heart disease and diabetes as well as for general health promotion, as defined by the 2015 to 2020 Dietary Guidelines for Americans and the 2018 Physical Activity Guidelines for Americans.
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Affiliation(s)
- Cheryl L Rock
- Department of Family Medicine and Public Health, School of Medicine, University of California at San Diego, San Diego, California
| | - Cynthia Thomson
- Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health Distinguished Outreach Faculty, University of Arizona, Tucson, Arizona
| | - Ted Gansler
- Intramural Research, American Cancer Society, Atlanta, Georgia
| | - Susan M Gapstur
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta, Georgia
| | - Marjorie L McCullough
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta, Georgia
| | - Alpa V Patel
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta, Georgia
| | | | - Elisa V Bandera
- Cancer Epidemiology and Health Outcomes, Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Colleen K Spees
- Division of Medical Dietetics and Health Sciences, School of Health and Rehabilitation Sciences, Comprehensive Cancer Center and James Solove Research Institute, The Ohio State University College of Medicine, Columbus, Ohio
| | - Kimberly Robien
- Department of Exercise and Nutrition Sciences, Department of Epidemiology, Milken Institute School of Public Health, George Washington University, Washington, DC
| | - Sheri Hartman
- Department of Family Medicine and Public Health, University of San Diego Moores Cancer Center, La Jolla, California
| | | | - Barbara L Grant
- Saint Alohonsus Regional Medical Center Cancer Care Center, Boise, Idaho
| | - Kathryn K Hamilton
- Carol G. Simon Cancer Center, Morristown Memorial Hospital, Morristown, New Jersey
| | - Lawrence H Kushi
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Bette J Caan
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Debra Kibbe
- Georgia Health Policy Center, Andrew Young School of Policy Studies, Georgia State University, Atlanta, Georgia
| | - Jessica Donze Black
- Community Health, American Heart Association/American Stroke Association, Washington, DC
| | - Tracy L Wiedt
- Cancer Control, American Cancer Society, Atlanta, Georgia
| | - Catherine McMahon
- Strategy and Operations, American Cancer Society Cancer Action Network, Washington, DC
| | - Kirsten Sloan
- Strategy and Operations, American Cancer Society Cancer Action Network, Washington, DC
| | - Colleen Doyle
- Cancer Control, American Cancer Society, Atlanta, Georgia
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24
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Golestanzadeh M, Riahi R, Kelishadi R. Association of phthalate exposure with precocious and delayed pubertal timing in girls and boys: a systematic review and meta-analysis. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:873-894. [PMID: 32091510 DOI: 10.1039/c9em00512a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Exposure to phthalate derivatives has adverse effects on the health and development of humans, especially for children. A growing body of evidence supports the idea that exposure to phthalates can change an individual's physiological set point and the time of puberty in both genders. In this systematic review and meta-analysis, recent studies were evaluated to obtain systematic and regulation results in relation to puberty status and phthalate exposure in girls and boys. We searched English-language papers using Scopus, ISI, and PubMed databases as search engines, with no restriction of time, until the end of July 2019. A comprehensive literature search for an association between phthalate exposure and signs of puberty as well as levels of different types of hormones was carefully performed. Of the 67 studies retained for full-text screening, 39 studies were eligible for data management and extraction. For conducting a meta-analysis, four studies had appropriate effect size and metrics for pooling in the meta-analysis. Our findings revealed that low and high exposure to phthalates could alter pubertal development in both genders; the effects were either early or delayed puberty such as changes in the pubarche, thelarche, and menarche time, as well as in testicular volume. We statistically analyzed the association of pubic-hair development, breast development, and menarche time with exposure to phthalates in girls. For example, the pooled odds ratios of mono (2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) and mono (2-ethyl-5-oxohexyl) phthalate (MEOHP) in relation to breast development were (OR: 1.48, 95% CI: 1.11-1.85) and (OR: 1.52, 95% CI: 1.15-1.58) (P-value < 0.001), respectively. In addition, we analyzed the correlation between pubic-hair development and testicular volume with exposure to phthalates in boys. To the best of our knowledge, this is the first systematic review and meta-analysis of its kind for girls and boys. In conclusion, we found that a positive association exists between phthalate exposure and pubertal timing in the pediatric age group. Therefore, prevention of exposure to phthalates and reduction of their use should be underscored in the strategies for primordial prevention of pubertal timing and related consequences.
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Affiliation(s)
- Mohsen Golestanzadeh
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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25
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Endocrine-Disrupting Chemicals and Their Effects during Female Puberty: A Review of Current Evidence. Int J Mol Sci 2020; 21:ijms21062078. [PMID: 32197344 PMCID: PMC7139481 DOI: 10.3390/ijms21062078] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 12/11/2022] Open
Abstract
Puberty is the process of physical changes between childhood and adulthood during which adolescents reach sexual maturity and become capable of reproduction. It is considered one of the main temporal windows of susceptibility for the influence of the endocrine-disrupting chemicals (EDCs). EDCs may act as single chemical agents or as chemical mixtures; they can be pubertal influencers, accelerating and anticipating the processing of maturation of secondary sexual characteristics. Moreover, recent studies have started to point out how exposure to EDCs during puberty may predispose to breast cancer later in life. In fact, the estrogen-mimicking endocrine disruptors (EEDs) may influence breast tissue development during puberty in two main ways: the first is the action on the proliferation of the breast stromal cells, the second concerns epigenetic mechanisms. The aim of this mini-review was to better highlight what is new and what is not completely known regarding the role of EDCs during puberty.
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Bethea TN, Wesselink AK, Weuve J, McClean MD, Hauser R, Williams PL, Ye X, Calafat AM, Baird DD, Wise LA. Correlates of exposure to phenols, parabens, and triclocarban in the Study of Environment, Lifestyle and Fibroids. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2020; 30:117-136. [PMID: 30692588 PMCID: PMC6661224 DOI: 10.1038/s41370-019-0114-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 12/10/2018] [Accepted: 12/26/2018] [Indexed: 05/22/2023]
Abstract
We performed a cross-sectional analysis to identify correlates of urinary concentrations of seven phenols (bisphenols A, F, and S; 2,4-dichlorophenol; 2,5-dichlorophenol; benzophenone-3; triclosan), triclocarban, and four parabens (butyl, ethyl, methyl, and propyl). We analyzed baseline data from 766 participants in the Study of Environment, Lifestyle, and Fibroids, a prospective cohort study of 1693 Black women aged 23-34 years residing in Detroit, Michigan (2010-2012). We collected data on demographic, behavioral, and anthropometric factors via telephone interviews, clinic visits, and self-administered questionnaires. For each biomarker, we used linear regression models to estimate mean differences in log-transformed, creatinine-corrected concentrations across factors of interest. Each biomarker was detected in >50% of participants. Median creatinine-corrected concentrations were the highest for methyl paraben (116.8 μg/g creatinine), propyl paraben (16.8 μg/g creatinine), and benzophenone-3 (13.4 μg/g creatinine). Variables most strongly associated with biomarker concentrations included season of urine collection, education, and body mass index (BMI). BMI was positively associated with bisphenol A and S and triclocarban concentrations and inversely associated with butyl and methyl paraben concentrations. In this cohort of Black women, exposure to phenols, parabens, and triclocarban was prevalent and several factors were associated with biomarker concentrations.
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Affiliation(s)
- Traci N Bethea
- Slone Epidemiology Center at Boston University, Boston, MA, USA.
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
| | - Amelia K Wesselink
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Jennifer Weuve
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Michael D McClean
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Paige L Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Xiaoyun Ye
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Donna D Baird
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Lauren A Wise
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
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Qi J, Mulabagal V, Liu L, Wilson C, Hayworth JS. A rapid UHPLC-MS/MS method for quantitation of phytoestrogens and the distribution of enterolactone in an Alabama estuary. CHEMOSPHERE 2019; 237:124472. [PMID: 31394445 DOI: 10.1016/j.chemosphere.2019.124472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 07/23/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are natural or synthetic compounds that can interfere with the endocrine systems of humans and wildlife. EDCs can pass through wastewater treatment systems, or run off from urban areas or agricultural operations, into natural water bodies, exposing resident and migratory organisms to complex EDC mixtures. Some phytoestrogenic polyphenolics (PEPP) are known or suspected EDCs; however, their contribution to total EDC burden in natural surface water systems is largely unknown. We describe a rapid, sensitive, and reproducible quantitative method for analysis of 15 PEPP in estuarine sediment and water, using ultra-high performance liquid chromatography-triple quadrupole mass spectrometry (UHPLC-MS/MS). The method provides excellent peak resolution, peak separation, and rapid run times (method separation/total run time: 8/12.5 min). With two exceptions, spiking experiments demonstrated that the percent recoveries for target PEPP in sediment and water samples were within acceptable analytical validation limits. LOD and LOQ values ranged from 0.004 to 0.010 ng/injection and 0.013-0.032 ng/injection, respectively. The validated method was used for PEPP analysis of sediment and water samples collected from 11 locations within the Perdido Bay estuary in coastal Alabama. No PEPP above the LOD were detected in sediment samples. The mammalian-derived lignin enterolactone was observed at low concentrations in water throughout the estuary, and significantly, at elevated concentrations at two locations associated with small-scale septic systems (3.66 ± 0.27 ng L-1 and 4.01 ± 0.33 ng L-1) and a large wastewater treatment system (4.56 ± 0.24 ng L-1 and 5.69 ± 0.43 ng L-1).
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Affiliation(s)
- Jingyi Qi
- Department of Civil Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Vanisree Mulabagal
- Department of Civil Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Lan Liu
- Department of Civil Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Caleb Wilson
- Department of Civil Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Joel S Hayworth
- Department of Civil Engineering, Auburn University, Auburn, AL, 36849, USA.
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28
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Abstract
While the categories of adolescence and puberty are often treated as one, the existence of two distinct terms points to different kinds of maturation in humans. Puberty refers to a period of coordinated somatic growth and reproductive maturation that shifts individuals from nonreproductive juvenility to reproductive maturity. Adolescence includes the behavioral and social assumption of adult roles. Life history theory offers powerful tools for understanding why puberty occurs later in humans than in other primates, including the benefits of delayed reproduction as part of a cooperation-intensive life history strategy. It also sheds light on the ways that pubertal timing responds to environmental variation. I review the mechanisms of maturation in humans and propose biocultural approaches to integrate life historical understandings of puberty with a broader definition of environment to encompass the concept of adolescence.
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Affiliation(s)
- Meredith W. Reiches
- Department of Anthropology, University of Massachusetts, Boston, Massachusetts 02125, USA
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29
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Parada H, Gammon MD, Ettore HL, Chen J, Calafat AM, Neugut AI, Santella RM, Wolff MS, Teitelbaum SL. Urinary concentrations of environmental phenols and their associations with breast cancer incidence and mortality following breast cancer. ENVIRONMENT INTERNATIONAL 2019; 130:104890. [PMID: 31228785 PMCID: PMC6679996 DOI: 10.1016/j.envint.2019.05.084] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/15/2019] [Accepted: 05/31/2019] [Indexed: 05/22/2023]
Abstract
BACKGROUND Environmental phenols, compounds used widely in personal care and consumer products, are known endocrine disruptors. Few epidemiologic studies have examined the association of phenol biomarkers with breast cancer incidence and, to our knowledge, none have considered associations with mortality following breast cancer. We examined seven urinary phenol biomarkers in association with breast cancer incidence and subsequent mortality, and examined effect measure modification by body mass index (BMI). METHODS Participants included 711 women with breast cancer and 598 women without breast cancer who were interviewed for the population-based Long Island Breast Cancer Study Project. Among women with breast cancer, phenol biomarkers were quantified in spot urine samples collected on average within three months of a first diagnosis of primary in situ or invasive breast cancer in 1996-1997. Women with breast cancer were monitored for vital status using the National Death Index. After a median follow-up of 17.6 years, we identified 271 deaths, including 98 deaths from breast cancer. We examined creatinine-corrected phenol concentrations and the sum of parabens (Σparabens) in association with breast cancer incidence using logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs), and with mortality using Cox regression to estimate hazard ratios (HRs) and 95% CIs. We evaluated multiplicative effect measure modification using cross-product terms in nested models. RESULTS The highest (vs lowest) quintiles of urinary methylparaben, propylparaben, and Σparabens were associated with risk of breast cancer with ORs ranging from 1.31 to 1.50. Methylparaben, propylparaben, and Σparabens were also associated with all-cause mortality HRs ranging from 0.68 to 0.77. Associations for breast cancer incidence were more pronounced among women with BMI < 25.0 kg/m2 than among women with BMI ≥ 25.0 kg/m2; however, associations for mortality were more pronounced among women with BMI ≥ 25 kg/m2 than among women with BMI < 25 kg/m2. CONCLUSIONS Select parabens may have differential associations with risk of developing breast cancer and mortality following breast cancer.
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Affiliation(s)
- Humberto Parada
- Division of Epidemiology and Biostatistics, School of Public Health, San Diego State University, San Diego, CA, USA; Moores Cancer Center, University of California, San Diego, La Jolla, CA, USA.
| | - Marilie D Gammon
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Hope L Ettore
- Division of Epidemiology and Biostatistics, School of Public Health, San Diego State University, San Diego, CA, USA.
| | - Jia Chen
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | | | - Alfred I Neugut
- Department of Medicine, Vagelos College of Physicians and Surgeons and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Regina M Santella
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Mary S Wolff
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Susan L Teitelbaum
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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30
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Radke EG, Glenn BS, Braun JM, Cooper GS. Phthalate exposure and female reproductive and developmental outcomes: a systematic review of the human epidemiological evidence. ENVIRONMENT INTERNATIONAL 2019; 130:104580. [PMID: 31351310 PMCID: PMC9400136 DOI: 10.1016/j.envint.2019.02.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/23/2018] [Accepted: 02/01/2019] [Indexed: 05/19/2023]
Abstract
OBJECTIVE We performed a systematic review of the epidemiology literature to identify the female reproductive and developmental effects associated with phthalate exposure. DATA SOURCES AND STUDY ELIGIBILITY CRITERIA Six phthalates were included in the review: di(2-ethylhexyl) phthalate (DEHP), diisononyl phthalate (DINP), dibutyl phthalate (DBP), diisobutyl phthalate (DIBP), butyl benzyl phthalate (BBP), and diethyl phthalate (DEP). The initial literature search (of PubMed, Web of Science, and Toxline) included all studies of female reproductive and developmental effects in humans, and outcomes were selected for full systematic review based on data availability. STUDY EVALUATION AND SYNTHESIS METHODS For each outcome, studies were evaluated using criteria defined a priori for risk of bias and sensitivity by two reviewers using a domain-based approach. Evidence was synthesized by outcome and phthalate and strength of evidence was summarized using a structured framework. RESULTS The primary outcomes reviewed here are (number of included/excluded studies in parentheses): pubertal development (5/13), time to pregnancy (3/4), preterm birth (8/12), and spontaneous abortion (5/0). Among these outcomes, preterm birth had moderate evidence of a positive association with phthalate exposure (specifically DEHP, DBP, and DEP). Exposure levels for BBP, DIBP, and DINP were generally lower than for the phthalates with an observed effect, which may partially explain the difference due to lower sensitivity. Other phthalate/outcome combinations were considered to have slight or indeterminate evidence of an association. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS Overall, these results support that some phthalates may be associated with higher odds of preterm birth in humans, though there is some remaining inconsistency. More evidence is needed on the mechanism and relevant exposure window for this association. The views expressed are those of the authors and do not necessarily represent the views or policies of the U.S. EPA.
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Affiliation(s)
- Elizabeth G Radke
- U.S. Environmental Protection Agency, National Center for Environmental Assessment, United States.
| | - Barbara S Glenn
- U.S. Environmental Protection Agency, National Center for Environmental Assessment, United States
| | - Joseph M Braun
- Brown University, School of Public Health, United States
| | - Glinda S Cooper
- U.S. Environmental Protection Agency, National Center for Environmental Assessment, United States; The Innocence Project, United States
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31
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Harley KG, Berger KP, Kogut K, Parra K, Lustig RH, Greenspan LC, Calafat AM, Ye X, Eskenazi B. Association of phthalates, parabens and phenols found in personal care products with pubertal timing in girls and boys. Hum Reprod 2019; 34:109-117. [PMID: 30517665 DOI: 10.1093/humrep/dey337] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/24/2018] [Indexed: 11/12/2022] Open
Abstract
STUDY QUESTION Are in-utero or peripubertal exposures to phthalates, parabens and other phenols found in personal care products associated with timing of pubertal onset in boys and girls? SUMMARY ANSWER We found some associations of altered pubertal timing in girls, but little evidence in boys. WHAT IS KNOWN ALREADY Certain chemicals in personal care and consumer products, including low molecular weight phthalates, parabens and phenols, or their precursors, are associated with altered pubertal timing in animal studies. STUDY DESIGN, SIZE, DURATION Data were from the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) longitudinal cohort study which followed 338 children in the Salinas Valley, California, from before birth to adolescence. PARTICIPANTS/MATERIALS, SETTING, METHODS Pregnant women were enrolled in 1999-2000. Mothers were mostly Latina, living below the federal poverty threshold and without a high school diploma. We measured concentrations of three phthalate metabolites (monoethyl phthalate [MEP], mono-n-butyl phthalate and mono-isobutyl phthalate), methyl and propyl paraben and four other phenols (triclosan, benzophenone-3 and 2,4- and 2,5-dichlorophenol) in urine collected from mothers during pregnancy and from children at age 9. Pubertal timing was assessed among 179 girls and 159 boys every 9 months between ages 9 and 13 using clinical Tanner staging. Accelerated failure time models were used to obtain mean shifts of pubertal timing associated with concentrations of prenatal and peripubertal biomarkers. MAIN RESULTS AND THE ROLE OF CHANCE In girls, we observed earlier onset of pubic hair development with prenatal urinary MEP concentrations and earlier menarche with prenatal triclosan and 2,4-dichlorophenol concentrations. Regarding peripubertal biomarkers, we observed: earlier breast development, pubic hair development and menarche with methyl paraben; earlier menarche with propyl paraben; and later pubic hair development with 2,5-dichlorophenol. In boys, we observed no associations with prenatal urinary biomarker concentrations and only one association with peripubertal concentrations: earlier genital development with propyl paraben. LIMITATIONS, REASONS FOR CAUTION These chemicals are quickly metabolized and one to two urinary measurements per developmental point may not accurately reflect usual exposure. Associations of peripubertal measurements with parabens may reflect reverse causality: children going through puberty early may be more likely to use personal care products. The study population was limited to Latino children of low socioeconomic status living in a farmworker community and may not be widely generalizable. WIDER IMPLICATIONS OF THE FINDINGS This study contributes to a growing literature that suggests that exposure to certain endocrine disrupting chemicals may impact timing of puberty in children. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the National Institute of Environmental Health Sciences and the US Environmental Protection Agency. The authors declare no conflicts of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Kim G Harley
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, 1995 University Avenue, Berkeley, CA, USA
| | - Kimberly P Berger
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, 1995 University Avenue, Berkeley, CA, USA
| | - Katherine Kogut
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, 1995 University Avenue, Berkeley, CA, USA
| | - Kimberly Parra
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, 1995 University Avenue, Berkeley, CA, USA
| | - Robert H Lustig
- Department of Pediatrics, University of California, San Francisco, 550 16th Street, San Francisco, CA, USA
| | - Louise C Greenspan
- Department of Pediatrics, Kaiser Permanente, 2238 Geary Blvd., San Francisco, CA, USA
| | - Antonia M Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, Atlanta, GA, USA
| | - Xiaoyun Ye
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, Atlanta, GA, USA
| | - Brenda Eskenazi
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, 1995 University Avenue, Berkeley, CA, USA
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Lee JE, Jung HW, Lee YJ, Lee YA. Early-life exposure to endocrine-disrupting chemicals and pubertal development in girls. Ann Pediatr Endocrinol Metab 2019; 24:78-91. [PMID: 31261471 PMCID: PMC6603611 DOI: 10.6065/apem.2019.24.2.78] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 06/18/2019] [Indexed: 12/30/2022] Open
Abstract
Over the last decades, the onset of puberty in girls has occurred earlier, but the tempo of pubertal progression has been relatively slower, resulting in a younger age at puberty onset without a change in age at menarche. Sufficient energy availability and adiposity contribute to early pubertal development, and environmental factors, such as endocrine-disrupting chemicals (EDCs), may affect not only the control of energy balance, but also puberty and reproduction. EDCs are hormonally active substances that can perturb puberty by acting both peripherally on target organs, such as adipose tissue or adrenal glands, and/or centrally on the hypothalamic-pituitary-gonadal (HPG) axis. Depending on whether the exposure takes place earlier during fetal and neonatal life or later during early childhood, EDCs can lead to different outcomes through different mechanisms. Evidence of associations between exposures to EDCs and altered pubertal timing makes it reasonable to support their relationship. However, human epidemiologic data are limited or inconsistent and cannot provide sufficient evidence for a causal relationship between EDC exposure and changes in pubertal timing. Further investigation is warranted to determine the overall or different effects of EDCs exposure during prenatal or childhood windows on pubertal milestones and to reveal the underlying mechanisms, including epigenetic marks, whereby early-life exposure to EDCs affect the HPG-peripheral tissue axis.
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Affiliation(s)
- Jeong Eun Lee
- Department of Pediatrics, Inje University Busan Paik Hospital, Busan, Korea
| | - Hae Woon Jung
- Department of Pediatrics, Kyung Hee University Medical Center, Seoul, Korea
| | - Yun Jeong Lee
- Department of Pediatrics, Seoul National University Children’s Hospital, Seoul, Korea
| | - Young Ah Lee
- Department of Pediatrics, Seoul National University Children’s Hospital, Seoul, Korea,Address for correspondence: Young Ah Lee, MD, PhD Department of Pediatrics, Seoul National University Children’s Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul 03080, Korea Tel: +82-2-2072-2082 Fax: +82-2-2072-3917 E-mail:
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Rivera-Núñez Z, Barrett ES, Szamreta EA, Shapses SA, Qin B, Lin Y, Zarbl H, Buckley B, Bandera EV. Urinary mycoestrogens and age and height at menarche in New Jersey girls. Environ Health 2019; 18:24. [PMID: 30902092 PMCID: PMC6431018 DOI: 10.1186/s12940-019-0464-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 03/13/2019] [Indexed: 05/10/2023]
Abstract
BACKGROUND Despite evidence of the endocrine disrupting properties of zearalenone (ZEN) and alpha-zearalanol (zeranol, α-ZAL), they have been minimally studied in human populations. In previous cross-sectional analyses, we demonstrated that 9-10 years old girls with detectable urinary ZEN were of shorter stature and less likely to have reached the onset of breast development than girls with undetectable urinary ZEN. The aim of this study was to examine baseline concentrations of ZEN, (α-ZAL), and their phase-1 metabolites in relation to subsequent growth and timing of menarche using 10 years of longitudinal data. METHODS Urine samples were collected from participants in the Jersey Girl Study at age 9-10 (n = 163). Unconjugated ZEN, (α-ZAL), and their metabolites were analyzed using high performance liquid chromatography and tandem mass spectrometry. Information on height, weight, and pubertal development was collected at a baseline visit with annual follow-up by mail thereafter. Cox regression was used to evaluate time to menarche in relation to baseline ZEN, (α-ZAL), and total mycoestrogen exposure. Z-scores for height and weight were used in mixed models to assess growth. RESULTS Mycoestrogens were detectable in urine in 78.5% of the girls (median ZEN: 1.02 ng/ml, range 0-22.3). Girls with detectable urinary concentrations of (α-ZAL) and total mycoestrogens (sum of ZEN, (α-ZAL) and their metabolites) at baseline were significantly shorter at menarche than girls with levels below detection (p = 0.04). ZEN and total mycoestrogen concentrations were inversely associated with height- and weight-z-scores at menarche (adjusted β = - 0.18, 95% CI: -0.29, - 0.08, and adjusted β = - 0.10, 95% CI: -0.21, 0.01, respectively). CONCLUSION This study supports and extends our previous results suggesting that exposure to ZEN, (α-ZAL), and their metabolites is associated with slower growth and pubertal development in adolescent girls.
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Affiliation(s)
- Zorimar Rivera-Núñez
- Rutgers Cancer Institute of New Jersey, 195 Little Albany St., New Brunswick, NJ 08901 USA
| | - Emily S. Barrett
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, 170 Frelinghuysen Rd, Piscataway, NJ 08854 USA
- Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854 USA
| | - Elizabeth A. Szamreta
- Rutgers Cancer Institute of New Jersey, 195 Little Albany St., New Brunswick, NJ 08901 USA
- Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854 USA
| | - Sue A. Shapses
- Department of Nutritional Sciences, Rutgers University, 65 Dudley Rd, New Brunswick, NJ 08901-8520 USA
| | - Bo Qin
- Rutgers Cancer Institute of New Jersey, 195 Little Albany St., New Brunswick, NJ 08901 USA
| | - Yong Lin
- Rutgers Cancer Institute of New Jersey, 195 Little Albany St., New Brunswick, NJ 08901 USA
- Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854 USA
| | - Helmut Zarbl
- Rutgers Cancer Institute of New Jersey, 195 Little Albany St., New Brunswick, NJ 08901 USA
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, 170 Frelinghuysen Rd, Piscataway, NJ 08854 USA
| | - Brian Buckley
- Environmental and Occupational Health Sciences Institute (EOHSI), Rutgers University, 170 Frelinghuysen Rd, Piscataway, NJ 08854 USA
- Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854 USA
| | - Elisa V. Bandera
- Rutgers Cancer Institute of New Jersey, 195 Little Albany St., New Brunswick, NJ 08901 USA
- Rutgers School of Public Health, 683 Hoes Lane West, Piscataway, NJ 08854 USA
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Urinary phthalate metabolites and metabolic syndrome in U.S. adolescents: Cross-sectional results from the National Health and Nutrition Examination Survey (2003–2014) data. Int J Hyg Environ Health 2019; 222:195-204. [DOI: 10.1016/j.ijheh.2018.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 09/22/2018] [Accepted: 09/26/2018] [Indexed: 01/19/2023]
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Aung MT, Ferguson KK, Cantonwine DE, McElrath TF, Meeker JD. Preterm birth in relation to the bisphenol A replacement, bisphenol S, and other phenols and parabens. ENVIRONMENTAL RESEARCH 2019; 169:131-138. [PMID: 30448626 PMCID: PMC6347500 DOI: 10.1016/j.envres.2018.10.037] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 10/25/2018] [Accepted: 10/30/2018] [Indexed: 05/14/2023]
Abstract
INTRODUCTION Preterm birth continues to be a significant public heath concern and is a leading cause of perinatal and infant mortality. Environmental exposures to phenols and parabens are suspected to potentially contribute to the pathology of preterm birth, yet limited human studies have characterized the extent to which these toxicants are associated with birth outcomes. METHODS We examined the associations between phenols, parabens, and preterm birth, within pregnant women who were recruited early in gestation into the LIFECODES cohort at Brigham and Women's Hospital in Boston, Massachusetts. Urine samples were collected at up to 4 time points in pregnancy and analyzed for phenols and parabens. We selected 130 cases of preterm birth (defined as delivery before 37 weeks gestation), and 350 random controls. We categorized preterm birth subtypes based on clinical presentation and identified 75 cases of spontaneous preterm birth (characterized by spontaneous preterm labor and/or preterm premature rupture of membranes), and 37 cases of placental preterm birth (characterized by preeclampsia and/or intrauterine growth restriction). We used multivariate logistic regression with visit specific and geometric averages of phenols and parabens to determine associations with preterm birth. RESULTS We observed moderate variability in urinary phenol and paraben concentrations over pregnancy with intraclass correlation coefficients ranging between 0.45 and 0.68. Regression analyses indicated mostly null associations. We observed inverse associations, notably between 2,5-dichlorophenol and overall preterm birth (adjusted odds ratio [95% confidence interval, CI]: 0.79 [0.67 - 0.94]), and this relationship was consistent by study visit. Conversely, ethyl paraben was associated with increased risk for placental preterm birth (adjusted odds ratio [95% CI]: 1.47 [1.14 - 1.91]). Bisphenol-S detection at visit 4 was associated with overall preterm birth (adjusted odds ratio [95% CI]: 2.05 [1.09, 3.89]). CONCLUSIONS While the findings from this study largely indicate null associations, we observed some relationships between select phenols, parabens and preterm birth, which warrants further investigation of these toxicants and birth outcomes.
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Affiliation(s)
- Max T Aung
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States
| | - Kelly K Ferguson
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States; Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
| | - David E Cantonwine
- Division of Maternal and Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Thomas F McElrath
- Division of Maternal and Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - John D Meeker
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States.
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Reeves KW, Díaz Santana M, Manson JE, Hankinson SE, Zoeller RT, Bigelow C, Sturgeon SR, Spiegelman D, Tinker L, Luo J, Chen B, Meliker J, Bonner MR, Cote ML, Cheng TYD, Calafat AM. Urinary Phthalate Biomarker Concentrations and Postmenopausal Breast Cancer Risk. J Natl Cancer Inst 2019; 111:1059-1067. [PMID: 30629220 PMCID: PMC6792088 DOI: 10.1093/jnci/djz002] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/28/2018] [Accepted: 01/02/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Growing laboratory and animal model evidence supports the potentially carcinogenic effects of some phthalates, chemicals used as plasticizers in a wide variety of consumer products, including cosmetics, medications, and vinyl flooring. However, prospective data on whether phthalates are associated with human breast cancer risk are lacking. METHODS We conducted a nested case-control study within the Women's Health Initiative (WHI) prospective cohort (n = 419 invasive case subjects and 838 control subjects). Control subjects were matched 2:1 to case subjects on age, enrollment date, follow-up time, and WHI study group. We quantified 13 phthalate metabolites and creatinine in two or three urine samples per participant over one to three years. Multivariable conditional logistic regression analysis was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for breast cancer risk associated with each phthalate biomarker up to 19 years of follow-up. RESULTS Overall, we did not observe statistically significant positive associations between phthalate biomarkers and breast cancer risk in multivariable analyses (eg, 4th vs 1st quartile of diethylhexyl phthalate, OR = 1.03, 95% CI = 0.91 to 1.17). Results were generally similar in analyses restricted to disease subtypes, to nonusers of postmenopausal hormone therapy, stratified by body mass index, or to case subjects diagnosed within three, five, or ten years. CONCLUSIONS In the first prospective analysis of phthalates and postmenopausal breast cancer, phthalate biomarker concentrations did not result in an increased risk of developing invasive breast cancer.
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Affiliation(s)
- Katherine W Reeves
- Correspondence to: Katherine W. Reeves, PhD, MPH, Department of Biostatistics and Epidemiology, University of Massachusetts Amherst, 411 Arnold House, 715 North Pleasant Street, Amherst, MA 01003 (e-mail: )
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Berger K, Eskenazi B, Kogut K, Parra K, Lustig RH, Greenspan LC, Holland N, Calafat AM, Ye X, Harley KG. Association of Prenatal Urinary Concentrations of Phthalates and Bisphenol A and Pubertal Timing in Boys and Girls. ENVIRONMENTAL HEALTH PERSPECTIVES 2018; 126:97004. [PMID: 30203993 PMCID: PMC6375461 DOI: 10.1289/ehp3424] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 07/12/2018] [Accepted: 08/02/2018] [Indexed: 05/19/2023]
Abstract
BACKGROUND Animal studies suggest that phthalates and bisphenol A (BPA), endocrine-disrupting chemicals found in many consumer products, may impact the timing of puberty. OBJECTIVES We aimed to determine the association of prenatal exposure to high-molecular-weight phthalates and BPA with pubertal timing in boys and girls participating in the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) longitudinal cohort study. METHODS We quantified urinary concentrations of eight phthalate metabolites and BPA at two time points during pregnancy among participating mothers ([Formula: see text]) and conducted clinical Tanner staging of puberty on their children every 9 months between 9 and 13 y of age. We conducted accelerated failure time models and examined the role of child overweight/obese status in this association. RESULTS The sum of urinary metabolites of di(2-ethylhexyl) phthalate [Formula: see text], monobenzyl phthalate (MBzP), and BPA were associated with later onset of at least one of the three outcomes assessed in girls (thelarche, pubarche, or menarche) and with earlier onset of at least one of the two outcomes assessed in boys (gondarche and pubarche). We found that monocarboxynonyl phthalate, monocarboxyoctyl phthalate, mono(3-carboxypropyl) phthalate, and BPA were associated with later pubarche and menarche mostly among normal-weight girls but not overweight/obese girls. MBzP was associated with later thelarche in all girls, and [Formula: see text] was associated with later thelarche and menarche in all girls. BPA and all phthalate biomarkers were associated with earlier gonadarche and pubarche in all boys as well as in overweight/obese boys when stratified by weight. Among normal-weight boys, associations with BPA were also inverse, whereas associations with phthalate metabolites were close to the null or positive. CONCLUSIONS Several high-molecular-weight phthalates and BPA were associated with later puberty in girls and earlier puberty in boys included in the CHAMACOS cohort study. Childhood overweight/obesity may modify these associations. https://doi.org/10.1289/EHP3424.
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Affiliation(s)
- Kimberly Berger
- 1 Center for Environmental Research and Children's Health (CERCH) , School of Public Health, University of California, Berkeley , Berkeley, California, USA
| | - Brenda Eskenazi
- 1 Center for Environmental Research and Children's Health (CERCH) , School of Public Health, University of California, Berkeley , Berkeley, California, USA
| | - Katherine Kogut
- 1 Center for Environmental Research and Children's Health (CERCH) , School of Public Health, University of California, Berkeley , Berkeley, California, USA
| | - Kimberly Parra
- 1 Center for Environmental Research and Children's Health (CERCH) , School of Public Health, University of California, Berkeley , Berkeley, California, USA
| | - Robert H Lustig
- 2 Department of Pediatrics, University of California, San Francisco , San Francisco, California, USA
| | - Louise C Greenspan
- 3 Department of Pediatrics, Kaiser Permanente , San Francisco, California, USA
| | - Nina Holland
- 1 Center for Environmental Research and Children's Health (CERCH) , School of Public Health, University of California, Berkeley , Berkeley, California, USA
| | - Antonia M Calafat
- 4 Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention , Atlanta, Georgia, USA
| | - Xiaoyun Ye
- 4 Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention , Atlanta, Georgia, USA
| | - Kim G Harley
- 1 Center for Environmental Research and Children's Health (CERCH) , School of Public Health, University of California, Berkeley , Berkeley, California, USA
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Binder AM, Corvalan C, Pereira A, Calafat AM, Ye X, Shepherd J, Michels KB. Prepubertal and Pubertal Endocrine-Disrupting Chemical Exposure and Breast Density among Chilean Adolescents. Cancer Epidemiol Biomarkers Prev 2018; 27:1491-1499. [PMID: 30158279 DOI: 10.1158/1055-9965.epi-17-0813] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/09/2017] [Accepted: 08/23/2018] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND During puberty, mammary tissue undergoes rapid development, which provides a window of heightened susceptibility of breast composition to the influence of endogenous and exogenous hormones. Exposure to endocrine-disrupting chemicals (EDC) may affect breast development and composition and the risk of developing breast cancer in adulthood. METHODS We evaluated the associations between breast density and urinary concentrations of phenols and phthalates collected at Tanner 1 (B1) and Tanner 4 (B4) in 200 Chilean girls. Total breast volume (BV), fibroglandular volume (FGV), and percent dense breast (%FGV) were evaluated at B4 using dual X-ray absorptiometry. Generalized estimating equations were used to analyze the association between concentrations of EDC biomarkers across puberty and breast density. RESULTS The geometric mean %FGV was 7% higher among girls in the highest relative to the lowest tertile of monocarboxyisooctyl phthalate [1.07; 95% confidence interval (CI), 1.01-1.14]. Monoethyl phthalate concentrations at B4 were positively associated with FGV (highest vs. lowest tertile: 1.22; 95% CI, 1.06-1.40). Bisphenol A displayed a U-shaped association with FGV; girls in the middle tertile had at least 10% lower FGV than girls in the lowest or highest tertiles. Monocarboxyisononyl phthalate showed a nonlinear association with BV. No other statistically significant associations were observed. CONCLUSIONS Our results suggest that the developing breast tissue is susceptible to select EDCs during childhood and adolescence. IMPACT This study may spur further investigations into environmental influences on breast development during puberty and how shifts in pubertal breast density track through the life course to modify breast cancer risk.
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Affiliation(s)
- Alexandra M Binder
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, California
| | - Camila Corvalan
- Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile
| | - Ana Pereira
- Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile
| | - Antonia M Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Xiaoyun Ye
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - John Shepherd
- Population Sciences in the Pacific Program, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Karin B Michels
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, California.
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Biro FM, Pajak A, Wolff MS, Pinney SM, Windham GC, Galvez MP, Greenspan LC, Kushi LH, Teitelbaum SL. Age of Menarche in a Longitudinal US Cohort. J Pediatr Adolesc Gynecol 2018; 31:339-345. [PMID: 29758276 PMCID: PMC6121217 DOI: 10.1016/j.jpag.2018.05.002] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 05/04/2018] [Accepted: 05/04/2018] [Indexed: 12/27/2022]
Abstract
STUDY OBJECTIVE Menarche is a critical milestone in a woman's life, and historically has been determined using several approaches. The goals of this study were to: (1) determine age at menarche from multiple reports of parents and adolescent participants in a prospective study; (2) examine factors affecting age at menarche; and (3) determine correlates of menarche and pubertal tempo. DESIGN Longitudinal observational study. SETTING Three sites of the Breast Cancer and the Environment Research Program. PARTICIPANTS Girls enrolled at 6-8 years of age. INTERVENTIONS AND MAIN OUTCOME MEASURES Parental and participant reported age of menarche, and tempo of puberty. RESULTS There were 946 girls who were assigned an age of menarche. The correlation between parent and participant reports was high (Spearman R = 0.799, P < .001), and the difference was insignificant. Median age at menarche overall was 12.25 years. Compared with black participants, Hispanic girls were more likely to have menarche earlier, whereas white and Asian girls were more likely to have menarche later. Age of menarche was highly correlated with age of breast development (Spearman R = 0.547; P < .001), and inversely with body mass index (Spearman R = -0.403; P < .001). Tempo (interval of age of breast development to menarche) was slower in those with earlier breast development. CONCLUSION Parental and adolescent reports of menarche are highly correlated. Earlier breast maturation was associated with slower tempo through puberty. Body mass index had a greater effect on age at menarche than did race and ethnicity.
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Affiliation(s)
- Frank M Biro
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
| | - Ashley Pajak
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Mary S Wolff
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Susan M Pinney
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Gayle C Windham
- Division of Environmental and Occupational Disease Control, California Department of Public Health, Richmond, California
| | - Maida P Galvez
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York
| | | | - Larry H Kushi
- Division of Research, Kaiser Permanente, Oakland, California
| | - Susan L Teitelbaum
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York
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Claudio L, Gilmore J, Roy M, Brenner B. Communicating environmental exposure results and health information in a community-based participatory research study. BMC Public Health 2018; 18:784. [PMID: 29940915 PMCID: PMC6019712 DOI: 10.1186/s12889-018-5721-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 06/18/2018] [Indexed: 01/01/2023] Open
Abstract
Background Communicating results to participants is a fundamental component of community-based participatory research (CBPR). However, in environmental exposure studies this is not always practiced, partly due to ethical concerns of communicating results that have unknown clinical significance. Methods Growing Up Healthy was a community-based participatory research study that sought to understand the relationship between environmental exposures to phthalates and early puberty in young girls. After in-depth consultation with a Community Advisory Board, study investigators provided group summary results of phthalate exposures and related health information to the parents of study participants. Parents’ comprehension and knowledge of the health information provided was then assessed through questionnaires. Results After receiving the information from the research team, responders were able to correctly answer comprehension questions about phthalate exposures in their community, were able to identify ways to reduce exposure to phthalates, and indicated plans to do so. Questionnaires revealed that parents wanted more information on phthalates, and that children’s environmental health was an important concern. Conclusions We conclude that effective communication of exposure results of unknown clinical significance to participants in environmental health studies can be achieved by providing group summary results and actionable health information. Results suggest that there was an improvement in knowledge of environmental health and in risk reduction behaviors in our study population.
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Affiliation(s)
- Luz Claudio
- Department of Environmental Medicine and Public Health, Division of International Health, One Gustave L. Levy Place, #1057, New York, NY, 10029-6574, USA.
| | - Jalisa Gilmore
- Department of Environmental Medicine and Public Health, Division of International Health, One Gustave L. Levy Place, #1057, New York, NY, 10029-6574, USA
| | - Mohana Roy
- Albert Einstein College of Medicine, Bronx, USA.,Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Barbara Brenner
- Department of Environmental Medicine and Public Health, Division of International Health, One Gustave L. Levy Place, #1057, New York, NY, 10029-6574, USA
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Street ME, Angelini S, Bernasconi S, Burgio E, Cassio A, Catellani C, Cirillo F, Deodati A, Fabbrizi E, Fanos V, Gargano G, Grossi E, Iughetti L, Lazzeroni P, Mantovani A, Migliore L, Palanza P, Panzica G, Papini AM, Parmigiani S, Predieri B, Sartori C, Tridenti G, Amarri S. Current Knowledge on Endocrine Disrupting Chemicals (EDCs) from Animal Biology to Humans, from Pregnancy to Adulthood: Highlights from a National Italian Meeting. Int J Mol Sci 2018; 19:E1647. [PMID: 29865233 PMCID: PMC6032228 DOI: 10.3390/ijms19061647] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/23/2018] [Accepted: 05/31/2018] [Indexed: 02/07/2023] Open
Abstract
Wildlife has often presented and suggested the effects of endocrine disrupting chemicals (EDCs). Animal studies have given us an important opportunity to understand the mechanisms of action of many chemicals on the endocrine system and on neurodevelopment and behaviour, and to evaluate the effects of doses, time and duration of exposure. Although results are sometimes conflicting because of confounding factors, epidemiological studies in humans suggest effects of EDCs on prenatal growth, thyroid function, glucose metabolism and obesity, puberty, fertility, and on carcinogenesis mainly through epigenetic mechanisms. This manuscript reviews the reports of a multidisciplinary national meeting on this topic.
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Affiliation(s)
- Maria Elisabeth Street
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Sabrina Angelini
- Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy.
| | - Sergio Bernasconi
- Former Department of Medicine, University of Parma, Via A. Catalani 10, 43123 Parma, Italy.
| | - Ernesto Burgio
- ECERI European Cancer and Environment Research Institute, Square de Meeus, 38-40, 1000 Bruxelles, Belgium.
| | - Alessandra Cassio
- Pediatric Endocrinology Programme, Pediatrics Unit, Department of Woman, Child Health and Urologic Diseases, AOU S. Orsola-Malpighi, Via Massarenti, 11, 40138 Bologna, Italy.
| | - Cecilia Catellani
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Francesca Cirillo
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Annalisa Deodati
- Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, Tor Vergata University, Piazza S. Onofrio 4, 00165 Rome, Italy.
| | - Enrica Fabbrizi
- Department of Pediatrics and Neonatology, Augusto Murri Hospital, Via Augusto Murri, 17, 63900 Fermo, Itlay.
| | - Vassilios Fanos
- Neonatal Intensive Care Unit, Neonatal Pathology and Neonatal Section, AOU and University of Cagliari, via Ospedale, 54, 09124 Cagliari, Italy.
| | - Giancarlo Gargano
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Enzo Grossi
- Villa Santa Maria Institute, Neuropsychiatric Rehabilitation Center, Via IV Novembre 15, 22038 Tavernerio (Como), Italy.
| | - Lorenzo Iughetti
- Department of Medical and Surgical Sciences of the Mother, Children and Adults, Pediatrics Unit, University of Modena and Reggio Emilia, via del Pozzo, 71, 41124 Modena, Italy.
| | - Pietro Lazzeroni
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Alberto Mantovani
- Department of Veterinary Public Health and Food Safety, Food and Veterinary Toxicology Unit ISS⁻National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Lucia Migliore
- Department of Traslational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Roma, 55, 56123 Pisa, Italy.
| | - Paola Palanza
- Unit of Neuroscience, Department of Medicine and Surgery, University of Parma, Via Gramsci, 14, 43126 Parma, Italy.
| | - Giancarlo Panzica
- Laboratory of Neuroendocrinology, Department of Neuroscience Rita Levi Montalcini, University of Turin, Via Cherasco 15, 10126 Turin, Italy.
- Neuroscience Institute Cavalieri-Ottolenghi (NICO), Regione Gonzole, 10, 10043 Orbassano (Turin), Italy.
| | - Anna Maria Papini
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia, 3-13, 50019 Sesto Fiorentino, Florence, Italy.
| | - Stefano Parmigiani
- Unit of Evolutionary and Functional Biology-Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA)-University of Parma⁻11/a, 43124 Parma, Italy.
| | - Barbara Predieri
- Department of Medical and Surgical Sciences of the Mother, Children and Adults, Pediatrics Unit, University of Modena and Reggio Emilia, via del Pozzo, 71, 41124 Modena, Italy.
| | - Chiara Sartori
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Gabriele Tridenti
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
| | - Sergio Amarri
- Department of Obstetrics, Gynaecology and Paediatrics, Azienda USL-IRCCS, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
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Binder AM, Corvalan C, Calafat AM, Ye X, Mericq V, Pereira A, Michels KB. Childhood and adolescent phenol and phthalate exposure and the age of menarche in Latina girls. Environ Health 2018; 17:32. [PMID: 29615064 PMCID: PMC5883544 DOI: 10.1186/s12940-018-0376-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 03/20/2018] [Indexed: 05/19/2023]
Abstract
BACKGROUND The age of menarche has been associated with metabolic and cardiovascular disease, as well as cancer risk. The decline in menarcheal age over the past century may be partially attributable to increased exposure to endocrine disrupting chemicals (EDCs). METHODS We assessed the influence of 26 phenol and phthalate biomarkers on the timing of menarche in a longitudinal cohort of Chilean girls. These EDCs were quantified in urine collected prior to the onset of breast development (Tanner 1; B1), and during adolescence (Tanner 4; B4). Multivariable accelerated failure time (AFT) models were used to analyze associations between biomarker concentrations and the age of menarche adjusting for body mass index (BMI) Z-score and maternal education, accounting for within-subject correlation. RESULTS Several biomarkers were significantly associated with the age at menarche; however, these associations were dependent on the timing of biomarker assessment. A log(ng/ml) increase in B1 concentrations of di(2-ethylhexyl) phthalate biomarkers was associated with later menarche (hazard ratio (HR): 0.77; 95% CI: 0.60, 0.98), whereas higher B1 concentrations of 2,5-dichlorophenol and benzophenone-3 were associated with earlier menarche (HR: 1.13; 95% CI: 1.01, 1.27; HR: 1.17; 95% CI: 1.06, 1.29, respectively). Elevated B4 concentrations of monomethyl phthalate were similarly associated with earlier menarche (HR: 1.30; 95% CI: 1.10, 1.53). The impact of monoethyl phthalate and triclosan concentrations on pubertal timing were significantly modified by BMI Z-score. Higher monoethyl phthalate and triclosan concentrations were associated with earlier menarche among overweight or obese girls, but not among those that were normal weight. CONCLUSIONS This study identifies modulation of sexual maturation by specific EDC biomarkers in Latina girls.
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Affiliation(s)
- Alexandra M. Binder
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA USA
| | - Camila Corvalan
- Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile
| | - Antonia M. Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA USA
| | - Xiaoyun Ye
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA USA
| | - Verónica Mericq
- Institute of Maternal and Child Research, University of Chile, Santiago, Chile
| | - Ana Pereira
- Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile
| | - Karin B. Michels
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA USA
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Binder AM, Corvalan C, Mericq V, Pereira A, Santos JL, Horvath S, Shepherd J, Michels KB. Faster ticking rate of the epigenetic clock is associated with faster pubertal development in girls. Epigenetics 2018; 13:85-94. [PMID: 29235933 DOI: 10.1080/15592294.2017.1414127] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Epigenetic age is an indicator of biological aging, capturing the impact of environmental and behavioral influences across time on cellular function. Deviance between epigenetic age and chronological age (AgeAccel) is a predictor of health. Pubertal timing has similarly been associated with cancer risk and mortality rate among females. We examined the association between AgeAccel and pubertal timing and adolescent breast composition in the longitudinal Growth and Obesity Cohort Study. AgeAccel was estimated in whole blood using the Horvath method at breast Tanner 2 (B2) and 4 (B4). Total breast volume, absolute fibro-glandular volume (FGV), and %FGV were evaluated at B4 using dual X-ray absorptiometry. The impact of AgeAccel (mean: 0; SD: 3.78) across puberty on the time to breast development (thelarche), menarche, and pubertal tempo (thelarche to menarche) was estimated using accelerated failure time models; generalized estimating equations were used to evaluate associations with breast density. A five-year increase in average adolescent AgeAccel was associated with a significant decrease in time to menarche [hazard ratio (HR): 1.37; 95% confidence interval (CI): 1.04, 1.80] adjusting for birth weight, maternal pre-pregnancy body mass index, maternal height, maternal education, B2 height, fat percentage, and cell composition. AgeAccel displayed a stronger inverse association with pubertal tempo (HR: 1.48; 95% CI: 1.10, 1.99). A five-year increase in AgeAccel was associated with 5% greater %FGV, adjusting for B4 percent body fat, and maternal traits (95% CI: 1.01, 1.10). Our study provides unique insight into the influence of AgeAccel on pubertal development in girls, which may have implications for adult health.
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Affiliation(s)
- Alexandra M Binder
- a Department of Epidemiology , Fielding School of Public Health, University of California , Los Angeles , 650 Charles E Young Drive South, Los Angeles , CA 90095 , USA
| | - Camila Corvalan
- b Institute of Nutrition and Food Technology , University of Chile , Av el Libano 5524, Santiago , Chile
| | - Verónica Mericq
- c Institute of Maternal and Child Research , University of Chile , Santa Rosa 1234, 2° piso, Santiago , Chile
| | - Ana Pereira
- b Institute of Nutrition and Food Technology , University of Chile , Av el Libano 5524, Santiago , Chile
| | - José Luis Santos
- d Department of Nutrition , Diabetes and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile , Av Libertador Bernardo O'Higgins 340, Santiago , Chile
| | - Steve Horvath
- e Department of Biostatistics , School of Public Health, and Department of Human Genetics, Gonda Research Center , David Geffen School of Medicine, University of California, Los Angeles , 695 Charles E Young Drive South, Los Angeles , CA 90095 , USA
| | - John Shepherd
- f Department of Radiology and Biomedical Imaging , University of California, San Francisco , 400 Parnassus Avenue, San Francisco , CA 94117 , USA
| | - Karin B Michels
- a Department of Epidemiology , Fielding School of Public Health, University of California , Los Angeles , 650 Charles E Young Drive South, Los Angeles , CA 90095 , USA
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44
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Hendryx M, Luo J. Children's environmental chemical exposures in the USA, NHANES 2003-2012. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:5336-5343. [PMID: 29209969 DOI: 10.1007/s11356-017-0874-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/28/2017] [Indexed: 06/07/2023]
Abstract
Children are vulnerable to environmental chemical exposures, but little is known about the extent of multiple chemical exposures among children. We analyzed biomonitoring data from five cycles (2003-2012) of the National Health and Nutrition Examination Survey (NHANES) to describe multiple chemical exposures in US children, examine levels of chemical concentrations present over time, and examine differences in chemical exposures by selected demographic groups. We analyzed data for 36 chemical analytes across five chemical classes in a sample of 4299 children aged 6-18. Classes included metals, pesticides, phthalates, phenols, and polycyclic aromatic hydrocarbons. We calculated the number and percent of chemicals detected and tested for secular trends over time in chemical concentrations. We compared log concentrations among groups defined by age, sex, race/ethnicity, and poverty using multiple linear regression models and report adjusted geometric means. Among a smaller subgroup of 733 children with data across chemical classes, we calculated the linear correlations within and between classes and conducted a principal component analysis. The percentage of children with detectable concentrations of an individual chemical ranged from 26 to 100%; the average was 93%, and 29 of 36 were detected in more than 90% of children. Concentrations of most tested chemicals were either unchanged or declined from earlier to more recent years. Many differences in concentrations were present by age, sex, poverty, and race/ethnicity categories. Within and between class correlations were all significant and positive, and the principal component analysis suggested a one factor solution, indicating that children exposed to higher levels of one chemical were exposed to higher levels of other chemicals. In conclusion, children in the USA are exposed to multiple simultaneous chemicals at uneven risk across socioeconomic and demographic groups. Further efforts to understand the effects of multiple exposures on child health and development are warranted.
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Affiliation(s)
- Michael Hendryx
- Department of Applied Health Science, School of Public Health, Indiana University, 1025 E. 7th St., Bloomington, IN, 47405, USA.
| | - Juhua Luo
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University, 1025 E. 7th St., Bloomington, IN, 47405, USA
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45
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Abstract
PURPOSE OF REVIEW The current review summarizes recent epidemiologic data demonstrating the effects of endocrine disrupting compounds (EDCs) on the timing of puberty and highlights the complexity of understanding the interplay of environmental and genetic factors on pubertal timing. RECENT FINDINGS In girls, there have been mixed results, with some exposures being associated with earlier timing of puberty, and some with later puberty. In boys, prepubertal exposures to nondioxin-like polychlorinated biphenyls accelerate puberty, whereas levels of insecticides, dioxin-like compounds, organochlorine pesticides, and lead delay puberty. SUMMARY The effects of EDCs on pubertal timing are sexually dimorphic, compound specific, and varies according to the window of exposure. These studies confirm that low-level exposures to a mix of environmental compounds may mask the effects of individual compounds and complicate our ability to translate data from animal studies to human health and to fully understand the clinical implications of environmental epidemiology studies.
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Affiliation(s)
| | - Mary M Lee
- Pediatric Endocrine Division, Department of Pediatrics, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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46
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Marks KJ, Hartman TJ, Taylor EV, Rybak ME, Northstone K, Marcus M. Exposure to phytoestrogens in utero and age at menarche in a contemporary British cohort. ENVIRONMENTAL RESEARCH 2017; 155:287-293. [PMID: 28259093 PMCID: PMC5488334 DOI: 10.1016/j.envres.2017.02.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 02/22/2017] [Accepted: 02/24/2017] [Indexed: 06/06/2023]
Abstract
Phytoestrogens are estrogenic compounds that occur naturally in plants. Phytoestrogens can cross the placenta, and animal studies have found associations between in utero exposure to phytoestrogens and markers of early puberty. We investigated the association between in utero exposure to phytoestrogens and early menarche (defined as <11.5 years of age at onset) using data from a nested case-control study within the Avon Longitudinal Study of Parents and Children, a longitudinal study involving families living in the South West of England. Concentrations of six phytoestrogens were measured in maternal urine samples collected during pregnancy. Logistic regression was used to explore associations between tertiles of phytoestrogen concentrations and menarche status, with adjustment for maternal age at menarche, maternal education, pre-pregnancy body mass index (BMI), child birth order, duration of breastfeeding, and gestational age at sample collection. Among 367 mother-daughter dyads, maternal median (interquartile range) creatinine-corrected concentrations (in µg/g creatinine) were: genistein 62.1 (27.1-160.9), daidzein 184.8 (88.8-383.7), equol 4.3 (2.8-9.0), O-desmethylangolensin (O-DMA) 13.0 (4.4-34.5), enterodiol 76.1 (39.1-135.8), and enterolactone 911.7 (448.1-1558.0). In analyses comparing those in the highest tertile relative to those in the lowest tertile of in utero phytoestrogen exposure, higher enterodiol levels were inversely associated with early menarche (odds ratio (OR)=0.47; 95% confidence interval (CI): 0.26-0.83), while higher O-DMA levels were associated with early menarche (OR=1.89; 95% CI: 1.04-3.42). These findings suggest that in utero exposure to phytoestrogens may be associated with earlier age at menarche, though the direction of association differs across phytoestrogens.
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Affiliation(s)
- Kristin J Marks
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd NE, Atlanta, GA 30322, United States; National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, Atlanta, GA 30341, United States.
| | - Terryl J Hartman
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd NE, Atlanta, GA 30322, United States; National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, Atlanta, GA 30341, United States
| | - Ethel V Taylor
- National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, Atlanta, GA 30341, United States
| | - Michael E Rybak
- National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, Atlanta, GA 30341, United States
| | - Kate Northstone
- The National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care West (NIHR CLAHRC West) at University Hospitals Bristol NHS Foundation Trust, 9th Floor, White Friars, Lewins Mead, Bristol BS1 2NT, United Kingdom; School of Social and Community Medicine, University of Bristol, 39 Whatley Road, Bristol BS8 2PS, United Kingdom
| | - Michele Marcus
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Rd NE, Atlanta, GA 30322, United States
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