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Huang Y, Wang P, Peng W, Law JCF, Zhang L, Shi H, Zhang Y, Leung KSY. Co-exposure to organic UV filters and phthalates and their associations with oxidative stress levels in children: A prospective follow-up study in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167433. [PMID: 37774881 DOI: 10.1016/j.scitotenv.2023.167433] [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: 08/17/2023] [Revised: 09/15/2023] [Accepted: 09/26/2023] [Indexed: 10/01/2023]
Abstract
Children are highly vulnerable to environmental pollutants, especially endocrine-disrupting chemicals (EDCs). Previous research has linked both organic UV filters and phthalates exposure to adiposity and pubertal development in children. Nevertheless, the individual and collective effects of these chemicals on this population remain poorly understood. In this study, twelve organic UV filters and metabolites, six phthalate metabolites and two oxidative stress biomarkers were analyzed in a prospective follow-up study in Shanghai, China after a baseline study conducted 1.5 years earlier. Results revealed a positive association between exposure to individual organic UV filters or their mixture and levels of 8-OHdG (β ranging from 0.242 to 0.588, P < 0.05), a marker of oxidative DNA damage. BP-3 and OD-PABA made a greater contribution to oxidative DNA damage than other UV filters. Levels of 8-OHdG were also positively correlated with single phthalate metabolites and their mixture, with MnBP and MMP contributing the most. Stratified analysis found that these associations were mainly observed in girls. Our mixture analysis revealed cumulative risks of oxidative DNA damage when there was co-exposure to these two kinds of EDCs. These results underscore the importance of considering the risks associated with organic UV filters and the necessity of evaluating the effects of all these pollutants, both individually and in mixtures.
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Affiliation(s)
- Yanran Huang
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hong Kong Special Administrative Region, P. R. China
| | - Pengpeng Wang
- Department of Occupational and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Weiyu Peng
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region, P. R. China
| | - Japhet Cheuk-Fung Law
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region, P. R. China
| | - Liyi Zhang
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, China
| | - Huijing Shi
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, China
| | - Yunhui Zhang
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, China.
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region, P. R. China; HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China.
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Liu W, Li X, Lv H, Liang C, Wang Q, Yao X, Dong C, Zhang W, Wang J, Zhu L, Wang J. Occurrence and health risk assessment of phthalates in a typical estuarine soil: A case study of the various functional areas of the Yellow River Delta. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166972. [PMID: 37699481 DOI: 10.1016/j.scitotenv.2023.166972] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/14/2023]
Abstract
In recent years, the extensive distribution of phthalates (PAEs) in soils has attracted increasing attention. In this study, the concentrations of six types of PAEs were measured in five dissimilar regions of the Yellow River Delta (YRD), and regional differences, pollution characteristics and health risks of PAEs pollution were investigated. The detection rate of PAEs was 100 %, and the concentration range of Σ6PAEs was 0.709-9.565 mg/kg, with an average of 3.258 ± 2.031 mg/kg. There were different spatial distribution differences of PAEs in soils of the YRD, with residential living, chemical industrial, and crop growing areas being the main areas of PAEs distribution. It was worth noting that di (2-ethylhexyl) phthalate (DEHP) and dibutyl phthalate (DBP) are prominent contributors to PAEs in soils of the YRD. Correlation analyses showed that soils physicochemical properties such as SOM, TN and CEC were closely correlated to the transport and transformation of PAEs. Use by petrochemical industries, accumulation of plasticizers, additives (derived from cosmetics, food, pharmaceutical), fertilizers, pesticides, plastics, and atmospheric deposition are the principal sources of PAEs in the YRD. A health risk assessment showed that the health risk caused by non-dietary intake of PAEs was low and considered acceptable. PAEs pollution in the YRD soil is particularly noteworthy, especially for the prevention and control of DEHP and DBP pollution. This study provides basic data for an effective control of soil PAEs pollution in the YRD, which is conducive to the sustainable development of the region.
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Affiliation(s)
- Wenrong Liu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Xianxu Li
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Huijuan Lv
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Chunliu Liang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Qian Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Xiangfeng Yao
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Chang Dong
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Wenjuan Zhang
- Shandong Green and Blue Bio-technology Co. Ltd, Tai'an, China
| | - Jinhua Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Lusheng Zhu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China
| | - Jun Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China.
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Taylor KW, Howdeshell KL, Bommarito PA, Sibrizzi CA, Blain RB, Magnuson K, Lemeris C, Tracy W, Baird DD, Jackson CL, Gaston SA, Rider CV, Walker VR, Rooney AA. Systematic evidence mapping informs a class-based approach to assessing personal care products and pubertal timing. ENVIRONMENT INTERNATIONAL 2023; 181:108307. [PMID: 37948866 DOI: 10.1016/j.envint.2023.108307] [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: 03/29/2023] [Revised: 10/24/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Personal care products (PCPs) contain many different compounds and are a source of exposure to endocrine disrupting chemicals (EDCs), including phthalates and phenols. Early-life exposure to EDCs commonly found in PCPs has been linked to earlier onset of puberty. OBJECTIVE To characterize the human and animal evidence on the association between puberty-related outcomes and exposure to PCPs and their chemical constituents and, if there is sufficient evidence, identify groups of chemicals and outcomes to support a systematic review for a class-based hazard or risk assessment. METHODS We followed the OHAT systematic review framework to characterize the human and animal evidence on the association between puberty-related health outcomes and exposure to PCPs and their chemical constituents. RESULTS Ninety-eight human and 299 animal studies that evaluated a total of 96 different chemicals were identified and mapped by key concepts including chemical class, data stream, and puberty-related health outcome. Among these studies, phthalates and phenols were the most well-studied chemical classes. Most of the phthalate and phenol studies examined secondary sex characteristics and changes in estradiol and testosterone levels. Studies evaluating PCP use and other chemical classes (e.g., parabens) had less data. CONCLUSIONS This systematic evidence map identified and mapped the published research evaluating the association between exposure to PCPs and their chemical constituents and puberty-related health outcomes. The resulting interactive visualization allows researchers to make evidence-based decisions on the available research by enabling them to search, sort, and filter the literature base of puberty-related studies by key concepts. This map can be used by researchers and regulators to prioritize and target future research and funding to reduce uncertainties and address data gaps. It also provides information to inform a class-based hazard or risk assessment on the association between phthalate and phenol exposures and puberty-related health outcomes.
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Affiliation(s)
- Kyla W Taylor
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA.
| | - Kembra L Howdeshell
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Paige A Bommarito
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | | | | | | | | | | | - Donna D Baird
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Chandra L Jackson
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA; National Institute on Minority Health and Health Disparities, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Symielle A Gaston
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Cynthia V Rider
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Vickie R Walker
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Andrew A Rooney
- National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
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4
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Burns JS, Bather JR, Sergeyev O, Lee MM, Korrick SA, Sokolov S, Kovalev S, Koch HM, Lebedev AT, Mínguez-Alarcón L, Hauser R, Williams PL. Longitudinal association of prepubertal urinary phthalate metabolite concentrations with pubertal progression among a cohort of boys. ENVIRONMENTAL RESEARCH 2023; 233:116330. [PMID: 37348639 PMCID: PMC10575624 DOI: 10.1016/j.envres.2023.116330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/19/2023] [Accepted: 06/03/2023] [Indexed: 06/24/2023]
Abstract
BACKGROUND Epidemiological studies have reported associations of anti-androgenic phthalate metabolite concentrations with later onset of male puberty, but few have assessed associations with progression. OBJECTIVES We examined the association of prepubertal urinary phthalate metabolite concentrations with trajectories of pubertal progression among Russian boys. METHODS At enrollment (ages 8-9 years), medical history, dietary, and demographic information were collected. At entry and annually to age 19 years, physical examinations including testicular volume (TV) were performed and spot urines collected. Each boy's prepubertal urine samples were pooled, and 15 phthalate metabolites were quantified by isotope dilution LC-MS/MS at Moscow State University. Metabolites of anti-androgenic parent phthalates were included: butylbenzyl (BBzP), di-n-butyl (DnBP), diisobutyl (DiBP), di(2-ethylhexyl) (DEHP) and diisononyl (DiNP) phthalates. We calculated the molar sums of DEHP, DiNP, and all AAP metabolites. We used group-based trajectory models (GBTMs) to identify subgroups of boys who followed similar pubertal trajectories from ages 8-19 years based on annual TV. We used multinomial and ordinal regression models to evaluate whether prepubertal log-transformed phthalate metabolite concentrations were associated with slower or faster pubertal progression trajectories, adjusting for covariates. RESULTS 304 boys contributed a total of 752 prepubertal urine samples (median 2, range: 1-6) for creation of individual pools. The median length of follow-up was 10.0 years; 79% of boys were followed beyond age 15. We identified three pubertal progression groups: slower (34%), moderate (43%), and faster (23%) progression. A standard deviation increase in urinary log-monobenzyl phthalate (MBzP) concentrations was associated with higher adjusted odds of being in the slow versus faster pubertal progression trajectory (aOR 1.47, 95% CI 1.06-2.04). None of the other phthalate metabolites were associated with pubertal progression. CONCLUSIONS On average, boys with higher concentrations of prepubertal urinary MBzP had a slower tempo of pubertal progression, perhaps attributable to the disruption of androgen-dependent biological pathways.
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Affiliation(s)
- J S Burns
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA.
| | - J R Bather
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 2, 4th Floor, Boston, MA, 02115, USA
| | - O Sergeyev
- Group of Epigenetic Epidemiology, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, Room 322, 119992, Moscow, Russia
| | - M M Lee
- Nemours Children's Health/Sidney Kimmel Medical School, Jefferson University, 1600 Rockland Road, Wilmington, DE, USA
| | - S A Korrick
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 401 Park Drive, 3rd Floor West, Boston, MA, 02215, USA
| | - S Sokolov
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russia
| | - S Kovalev
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russia
| | - H M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - A T Lebedev
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russia
| | - L Mínguez-Alarcón
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 401 Park Drive, 3rd Floor West, Boston, MA, 02215, USA
| | - R Hauser
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, 14th Floor, Boston, MA, 02115, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health Kresge Building, 9th Floor, Boston, MA, 02115, USA
| | - P L Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 2, 4th Floor, Boston, MA, 02115, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health Kresge Building, 9th Floor, Boston, MA, 02115, USA
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5
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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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7
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Liu J, Gao D, Li Y, Song X, Chen M, Ma Q, Wang X, Cui M, Guo T, Chen L, Zhang Y, Yuan W, Ma T, Jiang J, Dong Y, Zou Z, Ma J. Persistent high exposure to exogenous phthalates and endogenous sex hormones associated with early pubertal onset among children: A 3.5-year longitudinal cohort study in China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115199. [PMID: 37390727 DOI: 10.1016/j.ecoenv.2023.115199] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/17/2023] [Accepted: 06/26/2023] [Indexed: 07/02/2023]
Abstract
BACKGROUND Early onset of puberty could have significant impacts on childhood health, but the extent to which it was affected by phthalate esters (PAEs) and sex hormone disruption was not understood. The aim of this study is to investigate the associations between exposure to PAEs and sex hormone disruption and early onset of puberty in children. METHODS A longitudinal cohort study was conducted in China from May 2017 to Oct 2020, involving 740 children during consecutive visits. The onset of puberty was evaluated using Tanner definition, and early puberty was defined as an onset age less than the first 25 %, with cut-offs of 10.33 and 8.97 years for boys and girls, respectively. Serum testosterone (TT), estradiol (E2) and urinary PAE metabolites were measured during three visits. Generalized linear models were used to explore the associations between PAE and sex hormones with the age of puberty onset, while log-binomial regressions were applied to assess the associations of persistent exposure to PAEs and sex hormones with early pubertal onset. RESULTS Approximately 86.0 % of boys and 90.2 % of girls completed puberty onset from pre-puberty, and more than 95 % of participants had PAE concentrations higher than the limit of detection. Boys showed higher exposure to PAE pollutants and higher TT levels. Persistent exposure to PAEs was positively associated with early pubertal onset in girls (ARR = 1.97, 95 %CI = 1.12, 3.46). Moreover, persistent exposure to PAEs and E2 had synergistic associations with early pubertal onset in both boys (ARR = 4.77, 95 %CI = 1.06, 21.54) and girls (ARR = 7.07, 95 %CI = 1.51, 33.10). However, PAEs and TT had antagonistic associations only in boys (ARR = 0.44, 95 %CI = 0.07, 2.58). CONCLUSION Long-term exposure to PAEs might increase the risk of early pubertal onset, and it appears to work in synergy with E2, while in antagonism with TT in boys' early pubertal onset. Reducing PAEs exposure might promote pubertal health.
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Affiliation(s)
- Jieyu Liu
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Di Gao
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing, China
| | - Yanhui Li
- School of Nursing, Peking University, Beijing, China
| | - Xinli Song
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Manman Chen
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Qi Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Xinxin Wang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, China
| | - Mengjie Cui
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Tongjun Guo
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Li Chen
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Yi Zhang
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Wen Yuan
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Tao Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Jianuo Jiang
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
| | - Yanhui Dong
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China.
| | - Zhiyong Zou
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China.
| | - Jun Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, National Health Commission Key Laboratory of Reproductive Health, Beijing, China
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Su PH, Huang JY, Wang SLJ, Chang HP. Phthalates exposure and pubertal development in a 15-year follow-up birth cohort study in Taiwan. Front Endocrinol (Lausanne) 2023; 14:1065918. [PMID: 37288299 PMCID: PMC10242106 DOI: 10.3389/fendo.2023.1065918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/10/2023] [Indexed: 06/09/2023] Open
Abstract
Purpose Phthalates are ubiquitous endocrine disruptors that can affect pubertal development in children. The association of fetal and childhood levels of phthalates with pubertal development were explored. Methods We conduct a population-based birth cohort study to investigate the association between prenatal and childhood exposure to phthalates and pubertal development. Initially, a total of 445 children were recruited from 2000 to 2001, of which 90 children were followed for 15 years which measurements of urine and development assessed at 2, 5, 8, 11, and 14 years. We defined higher Tanner stage as the 14-year-old Tanner stage ≥ 4 and 5 for boys and girls, respectively. A logistic regression analysis was conducted to estimate the crude and adjusted odds ratio of a higher Tanner stage at 14 years old. The Pearson correlation coefficient and multiple linear regression were used to estimate the association of testicular volume, uterine volume, ovarian volume, and blood hormones at 14 years of age with the log-transformed concentration of phthalates at 2, 5, 8, 11, and 14 years. Results In boys, a significantly different geometric mean of mono-benzyl phthalate (MBzP) was observed in 11-year-olds; 6.82 and 2.96 in the lower Tanner stage group and higher Tanner stage group. In girls, a significant difference in the geometric mean of mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) in 11-year-olds and mono-ethyl phthalate (MEP) in 2-year-olds was observed; MEHHP was 32.97 and 18.13 in the lower Tanner stage group and higher Tanner stage group, and MEP was 26.54 and 65.74 in the lower Tanner stage group and higher Tanner stage group, respectively. Uterine volume at 14 years old was negatively associated with several phthalate metabolites (MEHP at 8 years old, MnBP at 8 years old, MBzP at 14 years old, MMP prenatally, MMP at 8 years old, and MEP at 8 years old) after adjusting for covariates. However, no significant correlations were found between phthalate metabolites and ovarian or testicular volume. Conclusion Phthalate exposure at certain time points may influence the reproductive development of children during puberty; however, further studies should be conducted to determine the causal nature of this association.
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Affiliation(s)
- Pen-Hua Su
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Jing-Yang Huang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shu-Li Julie Wang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
- Department of Public Health, National Defense Medical Center, Taipei, Taiwan
| | - Hua-Pin Chang
- Department of Nursing, Asia University, Taichung, Taiwan
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9
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Zheng X, Su H, Huang S, Su W, Zheng R, Shang Y, Su Q, Zhou L, Yao Y, Su Z. Secondary oxidized di-2-ethylhexyl phthalate metabolites may be associated with progression from isolated premature thelarche to central precocious or early puberty. Sci Rep 2023; 13:5560. [PMID: 37019965 PMCID: PMC10076281 DOI: 10.1038/s41598-023-32768-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/02/2023] [Indexed: 04/07/2023] Open
Abstract
Phthalate esters (PAEs) may act as estrogen receptor agonists, and their relationship with precocious puberty is a global health concern. However, their role in isolated premature thelarche (IPT) progression remains unclear. We conducted a cohort study investigating the relationship between IPT progression and urinary PAE metabolites. Girls with IPT aged 6-8 years were regularly followed up every three months for one year. Clinical data and urine PAE metabolite levels were collected. Participants who progressed to central precocious puberty (CPP) or early puberty (EP) had significantly higher ovarian volume, breast Tanner stage, and levels of the creatinine-adjusted urinary secondary oxidized di-2-ethylhexyl phthalate (DEHP) metabolites (Σ4DEHP). Breast Tanner stage (odds ratio [OR] = 7.041, p = 0.010), ovarian volume (OR = 3.603, p = 0.019), and Σ4DEHP (OR = 1.020, p = 0.005) were independent risk factors for IPT progression. For each 10 µg/g/Cr increase in the urine level of Σ4DEHP, the risk of progression from IPT to CPP/EP within one year increased by 20%. This study demonstrated that the breast Tanner stage, ovarian volume, and Σ4DEHP in urine were independent risk factors for IPT progression, and Σ4DEHP may be associated with the progression of IPT to CPP or EP.
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Affiliation(s)
- Xiuxin Zheng
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
- Department of Endocrinology, Fujian Children's Hospital, Fuzhou, Fujian, China
| | - Huiping Su
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Shurong Huang
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
- School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Wei Su
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Rongfei Zheng
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Yue Shang
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Qiru Su
- Department of Clinical Research, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Li Zhou
- Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Yao Yao
- Central Laboratory, Longgang District Maternal and Child Healthcare Hospital, Shenzhen, Guangdong, China
| | - Zhe Su
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China.
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10
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Zhou Y, Wang P, Li J, Zhao Y, Huang Y, Sze-Yin Leung K, Shi H, Zhang Y. Mixed exposure to phthalates and organic UV filters affects Children's pubertal development in a gender-specific manner. CHEMOSPHERE 2023; 320:138073. [PMID: 36758816 DOI: 10.1016/j.chemosphere.2023.138073] [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: 10/07/2022] [Revised: 01/25/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Previous studies showed phthalates and UV filters are endocrine-disruptive and associated with puberty. However, few studies have examined effects of mixed exposure. METHODS Six phthalate metabolites and 12 organic UV filters were detected among 223 school-age children. Puberty development was evaluated at baseline and after 18 months of follow-up. Ordered logistic regression models, least absolute shrinkage and selection operator (LASSO) regression and quantile-based g-computation (qgcomp) were used to evaluate relationships between phthalate metabolites or UV filters exposure and pubertal development. RESULTS Six phthalate metabolites and 5 UV filters were detectable in urine samples. In boys, BP-3 and 4'-MAP were negatively associated with genital (ORBP-3 = 0.52, (0.27, 0.93), OR4'-MAP = 0.45, (0.25, 0.74)) and pubic hair development (ORBP-3:0.24, (0.05, 0.76), OR4'-MAP:0.24, (0.05, 0.77)). In girls, MEP levels were associated with advanced breast development (OR: 1.29, (1.04, 1.64)). LASSO regression identified BP-3, 4'-MAP, and OD-PABA for inverse associations with pubertal development in boys. MEP was related to an increase in girls' breast development (OR: 1.64, (1.08, 2.63)). Overall mixture was related to a 70% reduction in boys' genital development stage, with a larger effect size than a single chemical in qgcomp. Mixed exposure was associated with girls' earlier puberty onset (OR: 2.61, (1.06, 6.42)). CONCLUSIONS Our results suggested higher levels of phthalate metabolites and UV filters were associated with delayed pubertal development in boys but with earlier puberty in girls. Higher effect size of joint exposure than single chemicals suggested phthalates and UV filters might have synergistic effects on puberty and distort adolescent endocrine function together.
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Affiliation(s)
- Yuhan Zhou
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai, 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Pengpeng Wang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai, 200032, China
| | - Jiufeng Li
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai, 200032, China
| | - Yingya Zhao
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center and Vanderbilt-Ingram Cancer Center, Nashville, TN, USA
| | - Yanran Huang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region, China
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region, China; HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China
| | - Huijing Shi
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai, 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Yunhui Zhang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai, 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China.
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Domínguez-Romero E, Komprdová K, Kalina J, Bessems J, Karakitsios S, Sarigiannis DA, Scheringer M. Time-trends in human urinary concentrations of phthalates and substitutes DEHT and DINCH in Asian and North American countries (2009-2019). JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2023; 33:244-254. [PMID: 35513587 PMCID: PMC10005949 DOI: 10.1038/s41370-022-00441-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 05/26/2023]
Abstract
BACKGROUND Many phthalates are environmental pollutants and toxic to humans. Following phthalate regulations, human exposure to phthalates has globally decreased with time in European countries, the US and Korea. Conversely, exposure to their substitutes DEHT and/or DINCH has increased. In other countries, including China, little is known on the time-trends in human exposure to these plasticizers. OBJECTIVE We aimed to estimate time-trends in the urinary concentrations of phthalates, DEHT, and DINCH metabolites, in general population from non-European countries, in the last decade. METHODS We compiled human biomonitoring (HBM) data from 123 studies worldwide in a database termed "PhthaLit". We analyzed time-trends in the urinary concentrations of the excreted metabolites of various phthalates as well as DEHT and DINCH per metabolite, age group, and country/region, in 2009-2019. Additionally, we compared urinary metabolites levels between continents. RESULTS We found solid time-trends in adults and/or children from the US, Canada, China and Taiwan. DEHP metabolites decreased in the US and Canada. Conversely in Asia, 5oxo- and 5OH-MEHP (DEHP metabolites) increased in Chinese children. For low-weight phthalates, the trends showed a mixed picture between metabolites and countries. Notably, MnBP (a DnBP metabolite) increased in China. The phthalate substitutes DEHT and DINCH markedly increased in the US. SIGNIFICANCE We addressed the major question of time-trends in human exposure to phthalates and their substitutes and compared the results in different countries worldwide. IMPACT Phthalates account for more than 50% of the plasticizer world market. Because of their toxicity, some phthalates have been regulated. In turn, the consumption of non-phthalate substitutes, such as DEHT and DINCH, is growing. Currently, phthalates and their substitutes show high detection percentages in human urine. Concerning time-trends, several studies, mainly in Europe, show a global decrease in phthalate exposure, and an increase in the exposure to phthalate substitutes in the last decade. In this study, we address the important question of time-trends in human exposure to phthalates and their substitutes and compare the results in different countries worldwide.
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Affiliation(s)
- Elena Domínguez-Romero
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, 611 37, Czech Republic.
| | - Klára Komprdová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, 611 37, Czech Republic
| | - Jiří Kalina
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, 611 37, Czech Republic
| | - Jos Bessems
- VITO (Flemish Institute for Technological Research), BE-2400, Mol, Belgium
| | - Spyros Karakitsios
- Aristotle Univ Thessaloniki, Dept Chem Engn, Environm Engn Lab, Univ Campus,Bldg D,Rm 201, Thessaloniki, 54124, Greece
- HERACLES Res Ctr Exposome & Hlth, Ctr Interdisciplinary Res & Innovat, Balkan Ctr, Bldg B,10thkm Thessaloniki Thermi Rd, Thessaloniki, 57001, Greece
| | - Dimosthenis A Sarigiannis
- Aristotle Univ Thessaloniki, Dept Chem Engn, Environm Engn Lab, Univ Campus,Bldg D,Rm 201, Thessaloniki, 54124, Greece
- HERACLES Res Ctr Exposome & Hlth, Ctr Interdisciplinary Res & Innovat, Balkan Ctr, Bldg B,10thkm Thessaloniki Thermi Rd, Thessaloniki, 57001, Greece
- Sch Adv Study IUSS, Sci Technol & Soc Dept, Environm Hlth Engn, Piazza Vittoria 15, I-27100, Pavia, Italy
| | - Martin Scheringer
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, 611 37, Czech Republic
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Kataria N, Bhushan D, Gupta R, Rajendran S, Teo MYM, Khoo KS. Current progress in treatment technologies for plastic waste (bisphenol A) in aquatic environment: Occurrence, toxicity and remediation mechanisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 315:120319. [PMID: 36183872 DOI: 10.1016/j.envpol.2022.120319] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/11/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Bisphenol-A (BPA) is a type of endocrine disrupting compound (EDC) that is being widely used in the production of polycarbonate and epoxy resins. In the last few years, human exposure to BPA has been extensively high due to the continuous increment in the Annual Growth Rate (AGR) of the BPA global market. The presence and transportation of BPA in the environment could cause serious damage to aquatic life and human health. This paper reviewed the literature on the exposure and toxicity mechanisms of BPA and advanced analytical techniques for the detection of BPA in the environment and human beings. The study indicated that BPA can cause damaging effects on numerous tissues and organs, including the reproductive system, metabolic dysfunction, respiratory system, immune system and central nervous system. On the basis of reported studies on animals, it appears that the exposure of BPA can be carcinogenic and responsible for causing a variety of cancers like ovarian cancer, uterine cancer, prostate cancer, testicular cancer, and liver cancer. This review paper focused mainly on the current progress in BPA removal technologies within last ten years (2012-2022). This paper presents a comprehensive overview of individual removal technologies, including adsorption, photocatalysis/photodegradation, ozonation/advance oxidation, photo-fenton, membranes/nanofilters, and biodegradation, along with removal mechanisms. The extensive literature study shows that each technology has its own removal mechanism and their respective limitations in BPA treatment. In adsorption and membrane separation process, most of BPA has been treated by electrostatic interaction, hydrogen boning and π-π interations mechanism. Whereas in the degradation mechanism, O* and OH* species have played a major role in BPA removal. Some factors could alter the removal potential and efficiency of BPA removal. This review paper will provide a useful guide in providing directions for future investigation to address the problem of BPA-containing wastewater treatment.
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Affiliation(s)
- Navish Kataria
- Department of Environmental Science and Engineering, J.C. Bose University of Science and Technology, YMCA, Faridabad, 121006, Haryana, India
| | - Divya Bhushan
- Department of Environmental Science and Engineering, J.C. Bose University of Science and Technology, YMCA, Faridabad, 121006, Haryana, India
| | - Renuka Gupta
- Department of Environmental Science and Engineering, J.C. Bose University of Science and Technology, YMCA, Faridabad, 121006, Haryana, India
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile
| | - Michelle Yee Mun Teo
- Faculty of Applied Sciences, UCSI University, UCSI Heights, Cheras, Kuala Lumpur, 56000, Malaysia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
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13
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Bigambo FM, Zhang M, Zhang J, Yang X, Yu Q, Wu D, Wang X, Xia Y. Exposure to a mixture of personal care product and plasticizing chemicals in relation to reproductive hormones and menarche timing among 12–19 years old girls in NHANES 2013–2016. Food Chem Toxicol 2022; 170:113463. [DOI: 10.1016/j.fct.2022.113463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 08/15/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022]
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Yuan L, Liu J, Huang Y, Shen G, Pang S, Wang C, Li Y, Mu X. Integrated toxicity assessment of DEHP and DBP toward aquatic ecosystem based on multiple trophic model assays. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:87402-87412. [PMID: 35804233 DOI: 10.1007/s11356-022-21863-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
To comprehensively understand the toxic risks of phthalates to aquatic ecosystems, we examined the acute toxicity of di-(2-ethylhexyl) phthalate (DEHP) and di-butyl phthalate (DBP) on multiple trophic models, including algae (Chlorella vulgaris), Daphnia magna and fish (Danio rerio, Pseudorasbora parva). Thus, a 15-day zebrafish exposure was conducted to trace the dynamic changes of phthalate-induced toxic effects. Among the four species, D. magna exhibited the strongest sensitivity to both DEHP and DBP, followed by D. rerio and P. parva. C. vulgaris exhibited the lowest sensitivity to phthalates. The sub-chronic zebrafish assay demonstrated that 1000 μg/L DBP induced significant mortality at 15 days post-exposure (dpe), and DEHP exhibited no lethality at the tested concentrations (10-5000 μg/L). Zebrafish hepatic SOD activity and sod transcription levels were inhibited by DBP from 3 dpe, which was accompanied by increased malondialdehyde level, while zebrafish exposed to DEHP exhibited less oxidative damage. Both DEHP and DBP induced time-dependent alterations on Ache activity in zebrafish brains, thus indicating the potential neurotoxicity toward aquatic organisms. Additionally, 1000 μg/L and higher concentration of DBP caused hepatic DNA damage in zebrafish from 7 dpe. These results provide a better understanding of the health risks of phthalate to water environment.
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Affiliation(s)
- Lilai Yuan
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Jia Liu
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
- College of Sciences, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Ying Huang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Gongming Shen
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Sen Pang
- College of Sciences, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Chengju Wang
- College of Sciences, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Yingren Li
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China
| | - Xiyan Mu
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, People's Republic of China.
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
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15
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Freire C, Castiello F, Lopez-Espinosa MJ, Beneito A, Lertxundi A, Jimeno-Romero A, Vrijheid M, Casas M. Association of prenatal phthalate exposure with pubertal development in Spanish boys and girls. ENVIRONMENTAL RESEARCH 2022; 213:113606. [PMID: 35716812 DOI: 10.1016/j.envres.2022.113606] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/18/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Phthalates are widespread, anti-androgenic chemicals known to alter early development, with possible impact on puberty timing. AIM To investigate the association of prenatal phthalate exposure with pubertal development in boys and girls. METHODS Urinary metabolites of six different phthalate diesters (DEP, DiBP, DnBP, BBzP, DEHP, and DiNP) and non-phthalate plasticizer DINCH® were quantified in two urine samples collected during pregnancy from mothers participating in the INMA Spanish cohort study. Pubertal assessment of their children at age 7-10 years (409 boys, 379 girls) was conducted using the parent-reported Pubertal Development Scale. Modified Poisson and Weighted Quantile Sum (WQS) regression was employed to examine associations between prenatal phthalates and risk of puberty onset, adrenarche, and gonadarche. Effect modification by child weight status was explored by stratified analysis. RESULTS Prenatal exposure to DEHP was associated with higher risk of puberty onset (relative risk [RR] = 1.32, 95% CI = 1.09-1.59 per each log-unit increase in concentrations) and gonadarche (RR = 1.23, 95% CI = 1.00-1.50) in boys and higher risk of adrenarche (RR = 1.25, 95% CI = 1.03-1.51) in girls at age 7-10 years. In boys, prenatal exposure to DEP, DnBP, and DEHP was also associated with higher risk of adrenarche or gonadarche (RRs = 1.49-1.80) in those with normal weight, and BBzP and DINCH® exposure with lower risk of adrenarche (RR = 0.49, 95% CI = 0.27-0.89 and RR = 0.47, 95% CI = 0.24-0.90, respectively) in those with overweight/obesity. In girls, DiBP, DnBP, and DINCH® were associated with slightly higher risk of gonadarche (RRs = 1.14-1.19) in those with overweight/obesity. In the WQS model, the phthalate mixture was not associated with puberty in boys or girls. CONCLUSION Prenatal exposure to certain phthalates was associated with pubertal development at age 7-10 years, especially earlier puberty in boys with normal weight and girls with overweight/obesity. However, there was no evidence of effect of the phthalate mixture on advancing or delaying puberty in boys or girls.
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Affiliation(s)
- Carmen Freire
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012, Granada, Spain; Biomedical Research Centre, University of Granada, 18016, Granada, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain.
| | - Francesca Castiello
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012, Granada, Spain; Pediatrics Unit, San Cecilio University Hospital, 18016, Granada, Spain.
| | - Maria-Jose Lopez-Espinosa
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Epidemiology and Environmental Health Joint Research Unit, FISABIO-Jaume I University-University of Valencia, 46020, Valencia, Spain; Department of Nursing, Faculty of Nursing and Chiropody, University of Valencia, 46010, Valencia, Spain.
| | - Andrea Beneito
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Jaume I University-University of Valencia, 46020, Valencia, Spain.
| | - Aitana Lertxundi
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Department of Preventive Medicine and Public Health, University of the Basque Country (UPV/EHU), 48940, Leioa, Bizkaia, Spain; BIODONOSTIA Health Research Institute, 20014, San Sebastián, Spain.
| | - Alba Jimeno-Romero
- Department of Preventive Medicine and Public Health, University of the Basque Country (UPV/EHU), 48940, Leioa, Bizkaia, Spain; BIODONOSTIA Health Research Institute, 20014, San Sebastián, Spain.
| | - Martine Vrijheid
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; ISGlobal, 08036, Barcelona, Spain; Universitat Pompeu Fabra, 08005, Barcelona, Spain.
| | - Maribel Casas
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; ISGlobal, 08036, Barcelona, Spain; Universitat Pompeu Fabra, 08005, Barcelona, Spain.
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Medical devices as a source of phthalate exposure: a review of current knowledge and alternative solutions. Arh Hig Rada Toksikol 2022; 73:179-190. [PMID: 36226817 PMCID: PMC9837533 DOI: 10.2478/aiht-2022-73-3639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 08/01/2022] [Indexed: 11/07/2022] Open
Abstract
Phthalates are a group of phthalic acid esters used as plasticisers in a large number of products to improve their flexibility, softness, and extensibility. Their wide use in medical devices, however, raises a lot of concern, as they can enter the organism and have toxic effects on human liver, thyroid, kidneys, lungs, reproductive, endocrine, nervous, and respiratory system and are associated with asthma, obesity, autism, and diabetes. The aim of this review is to summarise current knowledge about phthalate migration from medical devices during different medical procedures and possible impact on patient health. It also looks at alternative plasticisers with supposedly lower migration rates and safer profile. Not enough is known about which and how many phthalates make part of medical devices or about the health impacts of alternative plasticisers or their migration rates.
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Burns JS, Sergeyev O, Lee MM, Williams PL, Mínguez-Alarcón L, Plaku-Alakbarova B, Sokolov S, Kovalev S, Koch HM, Lebedev AT, Hauser R, Korrick SA. Associations of prepubertal urinary phthalate metabolite concentrations with pubertal onset among a longitudinal cohort of boys. ENVIRONMENTAL RESEARCH 2022; 212:113218. [PMID: 35390299 PMCID: PMC9310051 DOI: 10.1016/j.envres.2022.113218] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 03/23/2022] [Accepted: 03/27/2022] [Indexed: 06/09/2023]
Abstract
BACKGROUND Although phthalate exposures have been associated with adverse effects on male reproductive health, few studies have explored longitudinal associations with male pubertal development. OBJECTIVES We examined the association of prepubertal urinary concentrations of phthalate metabolites with age at pubertal onset in a prospective cohort of Russian boys. METHODS At enrollment at ages 8-9 years, medical history, dietary, and demographic information was collected. At entry and annually, physical examinations and pubertal staging [Genitalia (G), Pubarche (P), and testicular volume (TV, in ml)] were conducted and spot urines were collected. Prepubertal urine samples (defined as either TV = 1, 2 and G = 1, 2 or TV = 3 and G = 1) were pooled for each boy and phthalate metabolite concentrations were quantified using isotope dilution LC-MS/MS at Moscow State University. We measured 15 metabolites including those from anti-androgenic parent phthalates (AAPs) such as di (2-ethylhexyl) (DEHP) and di-isononyl (DiNP) phthalates as well as monobenzyl (MBzP), mono-n-butyl (MnBP), and mono-isobutyl (MiBP) metabolites. We calculated the molar sums of DEHP (∑DEHP), DiNP (∑DiNP), and AAP (∑AAP) metabolites. Separate interval-censored models were used to assess associations of quartiles of prepubertal phthalate metabolites with each pubertal onset indicator, G2+, P2+ and TV > 3 mL, adjusted for covariates and urine specific gravity. RESULTS 304 boys had 752 prepubertal urine samples (median 2, range: 1-6) for pooling. In adjusted models, higher urinary AAPs were consistently associated with later pubertal onset (P2) with mean shifts ranging from 8.4 to 14.2 months for the highest versus lowest quartiles. Significantly later onset for G2 and TV > 3 mL was observed for higher versus lower quartiles of MiBP, MBzP, ∑DEHP and ∑DiNP. CONCLUSIONS On average, boys with higher concentrations of prepubertal urinary AAPs had later pubertal onset by six months to over a year. The impact of AAPs on timing of male puberty may be attributable to disruption of androgen-dependent biological pathways.
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Affiliation(s)
- Jane S Burns
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, Boston, MA, 02115, USA.
| | - Oleg Sergeyev
- Group of Epigenetic Epidemiology, Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, Room 322, 119992, Moscow, Russia; Chapaevsk Medical Association, Meditsinskaya Str., 3a, Chapaevsk, Samara Region, 446100, Russia
| | - Mary M Lee
- Nemours Children's Health, 1600 Rockland Road, Wilmington, 19803, USA; Department of Pediatrics, Sidney Kimmel Medical School, Jefferson University, Philadelphia, PA, USA
| | - Paige L Williams
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 2, Room 443, Boston, MA, 02115, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave., Kresge Building, 9th Floor, Boston, MA, 02115, USA
| | - Lidia Mínguez-Alarcón
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, Boston, MA, 02115, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 401 Park Drive, 3rd Floor West, Boston, MA, 02215, USA
| | - Bora Plaku-Alakbarova
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, Boston, MA, 02115, USA; Epidemiology Division, Optuminsight Life Sciences, Boston, MA, USA
| | - Sergey Sokolov
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russian Federation
| | - Sergey Kovalev
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russian Federation
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789, Bochum, Germany
| | - Albert T Lebedev
- Chemistry Department, Lomonosov Moscow State University, Moscow, 119991, Leninskie Gory 1/3, Russian Federation
| | - Russ Hauser
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, Boston, MA, 02115, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave., Kresge Building, 9th Floor, Boston, MA, 02115, USA
| | - Susan A Korrick
- Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1, Boston, MA, 02115, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 401 Park Drive, 3rd Floor West, Boston, MA, 02215, USA
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Mohsen R, El-Zohairy E, Hassan MM, Fathy M, Magdy M, Atef S, Issak M, Taha SHN. The Possible Association between Phthalates and Bisphenol A Exposure and Idiopathic Precocious Puberty in Egyptian Girls. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Bisphenol A (BPA) and phthalates are utilized in large spectrum of plastics, as polyvinyl chloride as well as personal products, medical equipment, and epoxy resins. Phthalate and bisphenol A are the most common endocrine disrupting chemicals that interrupt the endocrine system and cause developmental, reproductive, neurological, and immune disturbances in humans. However, the relation between phthalates and bisphenol A and precocious puberty (PP) in human is still controversial.
AIM: Consequently, the present study aimed to detect and investigate the association between exposure to bisphenol A and monobutyl phthalate (MBP) and precocious puberty in Egyptian girls.
METHODS: Urine samples were collected from 100 young females. The subjects were divided into two major groups, precocious puberty group consisted of 60 young females diagnosed by an endocrine pediatric specialist and controls consisted of 40 normal young females matched in age and demographic characters. In urine, MBP and bisphenol A (BPA) were measured with high-performance liquid chromatography.
RESULTS: The mean concentration of MBP level was 22.758 ± 6.216 for the PP group and 15.283 ± 6.262 for controls with statistical difference between the studied groups (p < 0.001). Furthermore, the mean concentration of BPA was 405.02 ± 223.54 for the PP group and 97.95 ± 55 for controls with significant difference between groups (p < 0.001).
CONCLUSION: The present study found that idiopathic precocious puberty in young females was associated with high phthalate metabolites and bisphenol A levels in urine.
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Sánchez-Garrido MA, García-Galiano D, Tena-Sempere M. Early programming of reproductive health and fertility: novel neuroendocrine mechanisms and implications in reproductive medicine. Hum Reprod Update 2022; 28:346-375. [PMID: 35187579 PMCID: PMC9071071 DOI: 10.1093/humupd/dmac005] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/29/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND According to the Developmental Origins of Health and Disease (DOHaD) hypothesis, environmental changes taking place during early maturational periods may alter normal development and predispose to the occurrence of diverse pathologies later in life. Indeed, adverse conditions during these critical developmental windows of high plasticity have been reported to alter the offspring developmental trajectory, causing permanent functional and structural perturbations that in the long term may enhance disease susceptibility. However, while solid evidence has documented that fluctuations in environmental factors, ranging from nutrient availability to chemicals, in early developmental stages (including the peri-conceptional period) have discernible programming effects that increase vulnerability to develop metabolic perturbations, the impact and eventual mechanisms involved, of such developmental alterations on the reproductive phenotype of offspring have received less attention. OBJECTIVE AND RATIONALE This review will summarize recent advances in basic and clinical research that support the concept of DOHaD in the context of the impact of nutritional and hormonal perturbations, occurring during the periconceptional, fetal and early postnatal stages, on different aspects of reproductive function in both sexes. Special emphasis will be given to the effects of early nutritional stress on the timing of puberty and adult gonadotropic function, and to address the underlying neuroendocrine pathways, with particular attention to involvement of the Kiss1 system in these reproductive perturbations. The implications of such phenomena in terms of reproductive medicine will also be considered. SEARCH METHODS A comprehensive MEDLINE search, using PubMed as main interface, of research articles and reviews, published mainly between 2006 and 2021, has been carried out. Search was implemented using multiple terms, focusing on clinical and preclinical data from DOHaD studies, addressing periconceptional, gestational and perinatal programming of reproduction. Selected studies addressing early programming of metabolic function have also been considered, when relevant. OUTCOMES A solid body of evidence, from clinical and preclinical studies, has documented the impact of nutritional and hormonal fluctuations during the periconceptional, prenatal and early postnatal periods on pubertal maturation, as well as adult gonadotropic function and fertility. Furthermore, exposure to environmental chemicals, such as bisphenol A, and maternal stress has been shown to negatively influence pubertal development and gonadotropic function in adulthood. The underlying neuroendocrine pathways and mechanisms involved have been also addressed, mainly by preclinical studies, which have identified an, as yet incomplete, array of molecular and neurohormonal effectors. These include, prominently, epigenetic regulatory mechanisms and the hypothalamic Kiss1 system, which likely contribute to the generation of reproductive alterations in conditions of early nutritional and/or metabolic stress. In addition to the Kiss1 system, other major hypothalamic regulators of GnRH neurosecretion, such as γ-aminobutyric acid and glutamate, may be targets of developmental programming. WIDER IMPLICATIONS This review addresses an underdeveloped area of reproductive biology and medicine that may help to improve our understanding of human reproductive disorders and stresses the importance, and eventual pathogenic impact, of early determinants of puberty, adult reproductive function and fertility.
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Affiliation(s)
- Miguel Angel Sánchez-Garrido
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), Cordoba, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, Spain
- Hospital Universitario Reina Sofia, Cordoba, Spain
| | - David García-Galiano
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), Cordoba, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, Spain
- Hospital Universitario Reina Sofia, Cordoba, Spain
| | - Manuel Tena-Sempere
- Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), Cordoba, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, Spain
- Hospital Universitario Reina Sofia, Cordoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Cordoba, Spain
- Institute of Biomedicine, University of Turku, Turku, Finland
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20
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Yue M, Liu Q, Wang F, Zhou W, Liu L, Wang L, Zou Y, Zhang L, Zheng M, Zeng S, Gao J. Urinary neonicotinoid concentrations and pubertal development in Chinese adolescents: A cross-sectional study. ENVIRONMENT INTERNATIONAL 2022; 163:107186. [PMID: 35325769 DOI: 10.1016/j.envint.2022.107186] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 02/14/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Animal studies suggest that exposure to certain neonicotinoids may interfere with the normal function of endocrine system in mammals. However, evidence from human studies is limited. OBJECTIVES This study conducted a cross-sectional analysis to examine urinary neonicotinoids concentrations in Chinese adolescents and its association with pubertal development. METHODS 774 urine samples from 439 boys (median age: 13.7 years; 25th-75th percentile: 12.7-14.5 years) and 335 girls (median age: 13.7 years; 25th-75th percentile: 12.7-14.5 years) were collected for determination of ten neonicotinoids (imidacloprid, nitenpyram, acetamiprid, thiacloprid, imidaclothiz, thiamethoxam, clothianidin, dinotefuran, flonicamid, sulfoxaflor) and one metabolite (N-desmethyl-acetamiprid). Urinary creatinine was detected for concentration adjustment. Pubertal development including pubic hair, axillary hair, genitalia (boys), testicular volume (boys) and breast (girls) assessed by Tanner stages and others (spermarche, facial hair for boys and menarche for girls) were obtained by physical examination and questionnaire. Logistic and bayesian kernel machine regression were used to investigate the association between neonicotinoids concentrations and pubertal developments. RESULTS High detection rates ranged from 72.0% to 100.0% for all neonicotinoids. Boys and girls with thiacloprid concentration at the >75th percentile had lower stage of genitalia development (OR: 0.83, 95% CI: 0.33-0.93) and higher stage of axillary hair development (OR: 1.46, 95% CI: 1.12-3.41), respectively, compared with those at the <25th percentile. The estimate change in genitalia stage was significantly different at or above the 75th percentile concentration of neonicotinoids mixture compared to the 50th percentile concentration. No associations were found between other urinary neonicotinoids and other indicators of puberty. CONCLUSIONS Higher thiacloprid concentration was associated with delayed genitalia development in boys and early axillary hair development in girls. Neonicotinoids mixture was negatively associated with genitalia stage in the joint effect. Given the characteristic of the cross-sectional study, our results need further confirmation of the causal relationship.
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Affiliation(s)
- Min Yue
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Qin Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Feng Wang
- Chongqing Nan'an Center for Disease Control and Prevention, Chongqing 400067, PR China
| | - Wenli Zhou
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Liying Liu
- Chongqing Nan'an Center for Disease Control and Prevention, Chongqing 400067, PR China
| | - Lu Wang
- Chongqing Nan'an Center for Disease Control and Prevention, Chongqing 400067, PR China
| | - Yong Zou
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Liyu Zhang
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Meilin Zheng
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Shaohua Zeng
- China Coal Technology & Engineering Group Chongqing Research Institute, Chongqing 400039, PR China
| | - Jieying Gao
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China.
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21
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Kuiper JR, Braun JM, Calafat AM, Lanphear BP, Cecil KM, Chen A, Xu Y, Yolton K, Kalkwarf HJ, Buckley JP. Associations of pregnancy phthalate concentrations and their mixture with early adolescent bone mineral content and density: The Health Outcomes and Measures of the Environment (HOME) study. Bone 2022; 154:116251. [PMID: 34740813 PMCID: PMC8671261 DOI: 10.1016/j.bone.2021.116251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/22/2021] [Accepted: 10/29/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND The developing fetus may be particularly susceptibility to environmental osteotoxicants, but studies of pregnancy phthalate exposures and childhood bone health are scarce. OBJECTIVES To examine relations of pregnancy phthalate exposure biomarkers with early adolescent bone mineral density (BMD) and bone mineral content (BMC) in a prospective birth cohort. METHODS We used data from 223 pregnant mothers and their children enrolled in a Cincinnati, OH area cohort from 2003 to 2006. We quantified monoethyl phthalate (MEP), monoisobutyl phthalate, monobutyl phthalate, monobenzyl phthalate, mono-(3-carboxypropyl) phthalate (MCPP), and four metabolites of di-2-ethylhexyl phthalate in maternal urine collected at 16 and 26 weeks gestation, and calculated the average of creatinine-standardized concentrations. Using dual x-ray absorptiometry measures at age 12 years, we calculated BMD and BMC Z-scores for six skeletal sites. In overall and sex-stratified models, we estimated covariate-adjusted associations per 2-fold increase in phthalate biomarker concentrations using linear regression, and estimated joint effects of the phthalate biomarkers mixture using Bayesian kernel machine regression (BKMR) and quantile g-computation. RESULTS In single phthalate models, several biomarkers were positively associated with BMC and BMD. For example, each doubling of MEP and MCPP, 1/3rd distal radius BMD Z-score increased by 0.09 (95% CI: 0.01, 0.17) and 0.16 (95% CI: 0.01, 0.31), respectively. For phthalate mixtures, associations were generally U-shaped among males and positive-linear among females, using both statistical methods. Mixture associations were strongest with forearm sites: in BKMR models, increasing all biomarkers from the 50th to 90th percentile was associated with a 0.64 (95% CI: 0.01, 1.28) greater 1/3rd distal radius BMD Z-score in males, and a 0.49 (95% CI: -0.13, 1.10) greater ultradistal radius BMD Z-score in females. DISCUSSION In this study, phthalate exposures during gestation were associated with increased BMD Z-scores in early adolescence, though further research is needed to determine implications for long-term skeletal health.
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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
| | - Joseph M Braun
- Department of Epidemiology, Brown University, Providence, RI, USA
| | - Antonia M Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, Vancouver, BC, Canada
| | - Kim M Cecil
- Department of Radiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA; Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, USA
| | - Yingying Xu
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Kimberly Yolton
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Heidi J Kalkwarf
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jessie P Buckley
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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22
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Wang P, Huang Y, Zhao Y, Zhou Y, Wang H, Zhang L, Shi H, Sze-Yin Leung K, Zhang Y. Organic UV filters mixture exposure and childhood adiposity: A prospective follow-up study in China. ENVIRONMENT INTERNATIONAL 2022; 158:106912. [PMID: 34619533 DOI: 10.1016/j.envint.2021.106912] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND UV filters are emerging contaminants with endocrine disrupting effects, but little is known about their health effects, especially for children. OBJECTIVE To assess the association between multiple organic UV filters exposure and adiposity measures and by gender in peripubertal children. METHODS This prospective follow-up study included 327 children aged 7-15 years old. Urinary organic UV filters including benzophenone derivatives (BP-2, BP-3), octyl dimethyl para-aminobenzoic acid (OD-PABA), ethylhexyl methoxycinnamate (EHMC) and its metabolite (4-MCA and 4'-MAP) were quantified. Six adiposity biometrics including height, weight, waist and hip circumferences, and triceps and subscapular skinfold thickness were measured with 1.5-year duration. The Bayesian kernel machine regression method was used to estimate the associations of UV filters mixture with adiposity measurements, and longitudinal analyses were then considered to further evaluate the associations between individual UV filters and trajectories of growth development using linear mixed models or generalized linear mixed models. RESULTS Exposure to mixture of UV filters was negatively associated with most adiposity measurements, with a reduction of 1.399 kg/m2 (95% CI: -2.246 to -0.551 kg/m2) in BMI, 0.674 (95% CI: -1.045 to -0.304) in BMI z-score, 0.033 BF% (95% CI: -0.053 to -0.013), and 2.301 mm (95% CI: -3.823 to -0.78) in subscapular skinfold thickness at baseline, comparing the 75th percentile to the 25th level of UV filters mixture exposure. Consistent associations were found at follow-up. Both baseline and follow-up results suggested that EHMC was identified as the most important contributor to lower adiposity measurements, which was also confirmed by linear mixed models in longitudinal analyses. No significant effects were found in girls. CONCLUSION This study found that childhood organic UV filters exposure was negatively associated with adiposity measures in peripubertal boys, but not girls.
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Affiliation(s)
- Pengpeng Wang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yanran Huang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Yingya Zhao
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yuhan Zhou
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Hang Wang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Liyi Zhang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Huijing Shi
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China
| | - Yunhui Zhang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China.
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23
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Chemical Effects on Breast Development, Function, and Cancer Risk: Existing Knowledge and New Opportunities. Curr Environ Health Rep 2022; 9:535-562. [PMID: 35984634 PMCID: PMC9729163 DOI: 10.1007/s40572-022-00376-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Population studies show worrisome trends towards earlier breast development, difficulty in breastfeeding, and increasing rates of breast cancer in young women. Multiple epidemiological studies have linked these outcomes with chemical exposures, and experimental studies have shown that many of these chemicals generate similar effects in rodents, often by disrupting hormonal regulation. These endocrine-disrupting chemicals (EDCs) can alter the progression of mammary gland (MG) development, impair the ability to nourish offspring via lactation, increase mammary tissue density, and increase the propensity to develop cancer. However, current toxicological approaches to measuring the effects of chemical exposures on the MG are often inadequate to detect these effects, impairing our ability to identify exposures harmful to the breast and limiting opportunities for prevention. This paper describes key adverse outcomes for the MG, including impaired lactation, altered pubertal development, altered morphology (such as increased mammographic density), and cancer. It also summarizes evidence from humans and rodent models for exposures associated with these effects. We also review current toxicological practices for evaluating MG effects, highlight limitations of current methods, summarize debates related to how effects are interpreted in risk assessment, and make recommendations to strengthen assessment approaches. Increasing the rigor of MG assessment would improve our ability to identify chemicals of concern, regulate those chemicals based on their effects, and prevent exposures and associated adverse health effects.
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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: 13] [Impact Index Per Article: 6.5] [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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Sun G, Li Y. Molecular mechanisms of developmental toxicity induced by BBP in zebrafish embryos. Toxicology 2021; 466:153078. [PMID: 34933018 DOI: 10.1016/j.tox.2021.153078] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/30/2021] [Accepted: 12/16/2021] [Indexed: 02/07/2023]
Abstract
Butylbenzyl phthalate (BBP) has been shown to negatively affect the development of zebrafish embryos, however, its underlying mechanisms remain unclear. Therefore, our study aims to reveal the molecular mechanisms of developmental toxicity on zebrafish embryos. Zebrafish embryos were exposed to BBP (0, 0.6, and 1.2 mg/L) from 4 to 72 h post-fertilization (hpf). The adverse effects on zebrafish embryos were evaluated and the transcriptional profiles of zebrafish embryos were analyzed at 72hpf. Exposure to BBP decreased hatching and survival rates and induced obvious morphology abnormalities in zebrafish embryos. The activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) significantly decrease and the malondialdehyde (MDA) content significantly increased with 1.2 mg/L BBP exposure. Global transcriptome profiling analysis demonstrated that 578 and 1257 genes were differentially expressed in zebrafish embryos in the 0.6 and 1.2 mg/L groups, respectively. Gene Ontology (GO) term enrichment analysis demonstrated that DEGs are related to many aspects of cell composition, biological processes, and molecular functions. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis demonstrated that 13 and 22 pathways were significantly enriched in the 0.6 and 1.2 mg/L groups, respectively. DEGs were primarily concentrated in the metabolism of the 0.6 mg/L group and in the organismal systems and particularly affected vision and digestion in the 1.2 mg/L group. Our results contribute to a better understanding of the underlying mechanisms of developmental toxicity induced by phthalates.
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Affiliation(s)
- Guijin Sun
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Yingqiu Li
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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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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Chang WH, Herianto S, Lee CC, Hung H, Chen HL. The effects of phthalate ester exposure on human health: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 786:147371. [PMID: 33965815 DOI: 10.1016/j.scitotenv.2021.147371] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 05/26/2023]
Abstract
Phthalate esters (PAEs) are one of the most widely used plasticizers in polymer products and humans are increasingly exposed to them. The constant exposure to PAEs-contained products has raised some concerns against human health. Thus, the impacts of PAEs and their metabolites on human health require a comprehensive study for a better understanding of the associated risks. Here, we attempt to review eight main health effects of PAE exposure according to the most up-to-date studies. We found that epidemiological studies demonstrated a consistent association between PAE exposure (especially DEHP and its metabolites) and a decrease in sperm quality in males and symptom development of ADHD in children. Overall, we found insufficient evidence and lack of consistency of the association between PAE exposure and cardiovascular diseases (hypertension, atherosclerosis, and CHD), thyroid diseases, respiratory diseases, diabetes, obesity, kidney diseases, intelligence performance in children, and other reproductive system-related diseases (anogenital distance, girl precocious puberty, and endometriosis). Future studies (longitudinal and follow-up investigations) need to thoroughly perform in large-scale populations to yield more consistent and powerful results and increase the precision of the association as well as enhance the overall understanding of potential human health risks of PAEs in long-term exposure.
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Affiliation(s)
- Wei-Hsiang Chang
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Research Center of Environmental Trace Toxic Substances, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Samuel Herianto
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program (TIGP), Academia Sinica, Taipei 11529, Taiwan; Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan; Department of Chemistry (Chemical Biology Division), College of Science, National Taiwan University, Taipei 10617, Taiwan
| | - Ching-Chang Lee
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Research Center of Environmental Trace Toxic Substances, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsin Hung
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsiu-Ling Chen
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; Research Center of Environmental Trace Toxic Substances, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan.
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Baldo F, Barbi E, Tornese G. Delayed pubarche. Ital J Pediatr 2021; 47:180. [PMID: 34488834 PMCID: PMC8422600 DOI: 10.1186/s13052-021-01134-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 08/20/2021] [Indexed: 11/25/2022] Open
Abstract
In healthy adolescents, delayed pubarche is generally a benign condition that is caused by a physiological discrepancy between gonadarche and adrenarche. In presence of other clinical signs and symptoms, delayed pubarche can be caused by single or multiple hormones deficiency (such as adrenal insufficiency, panhypopituitarism and hypothyroidism) and/or genetic conditions (Turner syndrome, androgen insensitivity syndrome). Exposition to endocrine disruptors has also been described as a possible cause of delay of pubic hair development. Basic blood tests, karyotype and first level imaging studies are helpful in the differential diagnosis.
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Affiliation(s)
- Francesco Baldo
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazzale Europa 1, 34127, Trieste, Italy.
| | - Egidio Barbi
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazzale Europa 1, 34127, Trieste, Italy.,Department of Pediatrics, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", via dell'Istria 65/1, Trieste, Italy
| | - Gianluca Tornese
- Department of Pediatrics, Institute for Maternal and Child Health IRCCS "Burlo Garofolo", via dell'Istria 65/1, Trieste, Italy
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Xiong YH, Pei DS. A review on efficient removal of phthalic acid esters via biochars and transition metals-activated persulfate systems. CHEMOSPHERE 2021; 277:130256. [PMID: 33773311 DOI: 10.1016/j.chemosphere.2021.130256] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/15/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
As emerging contaminants, PAEs (Phthalic Acid Esters or Phthalate Esters) have been extensively utilized in industrial production to soften the rigid plastics (plasticizers), and their related products are widely distributed in our daily life. The PAEs can readily transfer from the products to the surrounding environment due to not being chemically bound to the products. In this study, we analyzed the PAEs' properties, usage, and consumption in the world, as well as toxicity to human beings. As endocrine-disrupting chemicals (EDCs), PAEs can disturb the normal hormones reactions, resulting in developmental and reproductive problems. Thus, we have to concern the removal strategies of PAEs. We summarized two novel approaches, including biochars and persulfate (PS) oxidation for effectively removing PAEs in the literature. Their characteristics, removal mechanisms, and the main impact factors on the removal of PAEs were highlighted. Moreover, transition metal-activated PS showed good performance on PAEs degradation. Furthermore, the synergy of biochars and transition metals-PS can overcome the disadvantages of a single approach, and show better performance on the removal of PAEs. Finally, we put forward vital strategies to update two approaches (including the combined) for enhancing the removal of PAEs. It is expected that the researchers or scientists can get a hint on effectively remediating PAEs-contaminated sites via the biochars' sorption/transition metals-PS or the combined two from this review paper.
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Affiliation(s)
- Yang-Hui Xiong
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - De-Sheng Pei
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China; College of Life Science, Henan Normal University, Xinxiang, 453007, Henan, China.
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Qu M, Wang L, Liu F, Zhao Y, Shi X, Li S. Characteristics of dust-phase phthalates in dormitory, classroom, and home and non-dietary exposure in Beijing, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:38159-38172. [PMID: 33725303 DOI: 10.1007/s11356-021-13347-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
The phthalate concentrations in dust from undergraduate dormitories, classrooms, and homes in Beijing, China, were measured in April 2017. We analyzed the characteristics of phthalates in dust from three environments. In addition, we estimated the daily intake of phthalates via three pathways using Monte Carlo simulations. The detection frequency of eight phthalates in dust ranges from 74.5 to 100%. Di (2-ethylhexyl) phthalate (DEHP), di-n-butyl phthalate (DnBP), and di-isobutyl phthalate (DiBP) are the most abundant phthalates. The median proportion of DEHP in dust is the highest, ranging from 67.1 to 72.9%. The PMF results indicated that two, four, and three types of phthalate sources exist in home, dormitory, and classroom, respectively. The differences in the phthalate concentrations between sunny and shaded rooms and urban and suburban classrooms are insignificant, whereas that between male and female dormitories is significant. The total daily intake of DEHP, DnBP, and DiBP ranges from 97.3 to 336 ng/ (kg·day). The oral intake for DEHP in classrooms and the dermal intake of DnBP and DiBP in homes are the highest. The carcinogenic risk of DEHP to university students is the highest in classrooms and the total carcinogenic risk of the three environments is 4.70 × 10-6.
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Affiliation(s)
- Meinan Qu
- Beijing Key Laboratory of Heating, Gas Supply, Ventilation and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
| | - Lixin Wang
- Beijing Key Laboratory of Heating, Gas Supply, Ventilation and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China.
| | - Fang Liu
- Beijing Key Laboratory of Heating, Gas Supply, Ventilation and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
| | - Yi Zhao
- Beijing Key Laboratory of Heating, Gas Supply, Ventilation and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
| | - Xiangzhao Shi
- Beijing Key Laboratory of Heating, Gas Supply, Ventilation and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
| | - Sijia Li
- Beijing Key Laboratory of Heating, Gas Supply, Ventilation and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
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Das MT, Kumar SS, Ghosh P, Shah G, Malyan SK, Bajar S, Thakur IS, Singh L. Remediation strategies for mitigation of phthalate pollution: Challenges and future perspectives. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124496. [PMID: 33187797 DOI: 10.1016/j.jhazmat.2020.124496] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/15/2020] [Accepted: 11/04/2020] [Indexed: 05/12/2023]
Abstract
Phthalates are a group of emerging xenobiotic compounds commonly used as plasticizers. In recent times, there has been an increasing concern over the risk of phthalate exposure leading to adverse effects to human health and the environment. Therefore, it is necessary to not only understand the current status of phthalate pollution, their sources, exposure routes and health impacts, but also identify remediation technologies for mitigating phthalate pollution. Present review article aims to inform its readers about the ever increasing data on health burdens posed by phthalates and simultaneously highlights the recent advancements in research to alleviate phthalate contamination from environment. The article enumerates the major phthalates in use today, traces their environmental fate, addresses their growing health hazard concerns and largely focus on to provide an in-depth understanding of the different physical, chemical and biological treatment methods currently being used or under research for alleviating the risk of phthalate pollution, their challenges and the future research perspectives.
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Affiliation(s)
- Mihir Tanay Das
- Department of Environmental Science, Fakir Mohan University, Balasore 756020, Odisha, India
| | - Smita S Kumar
- J.C. Bose University of Science and Technology, YMCA, Faridabad 121006, Haryana, India; Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Pooja Ghosh
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Goldy Shah
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sandeep K Malyan
- Institute for Soil, Water, and Environmental Sciences, The Volcani Center, Agricultural Research Organization (ARO), Rishon LeZion 7505101, Israel
| | - Somvir Bajar
- J.C. Bose University of Science and Technology, YMCA, Faridabad 121006, Haryana, India
| | - Indu Shekhar Thakur
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110 067, India
| | - Lakhveer Singh
- Department of Environmental Science, SRM University-AP, Amaravati 522502, Andhra Pradesh, India.
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Oskar S, Wolff MS, Teitelbaum SL, Stingone JA. Identifying environmental exposure profiles associated with timing of menarche: A two-step machine learning approach to examine multiple environmental exposures. ENVIRONMENTAL RESEARCH 2021; 195:110524. [PMID: 33249040 PMCID: PMC8673778 DOI: 10.1016/j.envres.2020.110524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Variation in the timing of menarche has been linked with adverse health outcomes in later life. There is evidence that exposure to hormonally active agents (or endocrine disrupting chemicals; EDCs) during childhood may play a role in accelerating or delaying menarche. The goal of this study was to generate hypotheses on the relationship between exposure to multiple EDCs and timing of menarche by applying a two-stage machine learning approach. METHODS We used data from the National Health and Nutrition Examination Survey (NHANES) for years 2005-2008. Data were analyzed for 229 female participants 12-16 years of age who had blood and urine biomarker measures of 41 environmental exposures, all with >70% above limit of detection, in seven classes of chemicals. We modeled risk for earlier menarche (<12 years of age vs older) with exposure biomarkers. We applied a two-stage approach consisting of a random forest (RF) to identify important exposure combinations associated with timing of menarche followed by multivariable modified Poisson regression to quantify associations between exposure profiles ("combinations") and timing of menarche. RESULTS RF identified urinary concentrations of monoethylhexyl phthalate (MEHP) as the most important feature in partitioning girls into homogenous subgroups followed by bisphenol A (BPA) and 2,4-dichlorophenol (2,4-DCP). In this first stage, we identified 11 distinct exposure biomarker profiles, containing five different classes of EDCs associated with earlier menarche. MEHP appeared in all 11 exposure biomarker profiles and phenols appeared in five. Using these profiles in the second-stage of analysis, we found a relationship between lower MEHP and earlier menarche (MEHP ≤ 2.36 ng/mL vs >2.36 ng/mL: adjusted PR = 1.36, 95% CI: 1.02, 1.80). Combinations of lower MEHP with benzophenone-3, 2,4-DCP, and BPA had similar associations with earlier menarche, though slightly weaker in those smaller subgroups. For girls not having lower MEHP, exposure profiles included other biomarkers (BPA, enterodiol, monobenzyl phthalate, triclosan, and 1-hydroxypyrene); these showed largely null associations in the second-stage analysis. Adjustment for covariates did not materially change the estimates or CIs of these models. We observed weak or null effect estimates for some exposure biomarker profiles and relevant profiles consisted of no more than two EDCs, possibly due to small sample sizes in subgroups. CONCLUSION A two-stage approach incorporating machine learning was able to identify interpretable combinations of biomarkers in relation to timing of menarche; these should be further explored in prospective studies. Machine learning methods can serve as a valuable tool to identify patterns within data and generate hypotheses that can be investigated within future, targeted analyses.
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Affiliation(s)
- Sabine Oskar
- Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA.
| | - Mary S Wolff
- Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Susan L Teitelbaum
- Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jeanette A Stingone
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
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Huang Y, Wang P, Law JCF, Zhao Y, Wei Q, Zhou Y, Zhang Y, Shi H, Leung KSY. Organic UV filter exposure and pubertal development: A prospective follow-up study of urban Chinese adolescents. ENVIRONMENT INTERNATIONAL 2020; 143:105961. [PMID: 32679395 DOI: 10.1016/j.envint.2020.105961] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/03/2020] [Accepted: 07/04/2020] [Indexed: 05/09/2023]
Abstract
BACKGROUND UV filters, widely used in personal care and industrial products, are being found in the environment and, in humans where with limited understanding on their potential health effects, especially during puberty. OBJECTIVES To examine the association between UV filter exposure and pubertal development in a prospective follow-up study. METHODS This study included 521 elementary and high school students from a suburban area of Shanghai. The initial study was done in October to November 2011; the follow-up study in April to May 2013. Twelve urinary organic UV filters were quantified, and the pubertal development was assessed at each study period by trained physicians using Tanner staging. We used (ordered) logistic regression model and multilevel mixed-effect (ordered) logistic regression model to assess cross-sectional and longitudinal effects between urinary concentration of five major UV filters and pubertal development of stages, onset and pace. RESULTS Ethylhexyl methoxycinnamate (EHMC) and its metabolite 4'-methoxyacetophenone (4'-MAP), two benzophenone derivatives (BP-2, BP-3) and Ethylhexyl dimethyl PABA (OD-PABA) were the most extensively detected UV filters in urine with geometric means (95% CI) in 2010 and 2012 as 1.77 (1.599, 1.956) and 2.28 (1.985, 2.622) ng/mL for EHMC; 4.55 (4.219, 4.907) and 5.26 (4.783, 5.775) ng/mL for 4'-MAP; 4.38 (4.011, 4.774) and 5.74 (5.023, 6.562) ng/mL for BP-2; 0.83 (0.760, 0.903) and 1.09 (0.967, 1.220) ng/mL for BP-3; 5.37 (4.949, 5.820) and 5.80 (5.193, 6.486) pg/mL for OD-PABA. Significant trend P-values (P < 0.05) include: EHMC and its metabolite were negatively correlated with stages of testicular volume and genital development; BP-3 was also negatively correlated with stages of testicular volume in boys, while OD-PABA positively correlated with stages of pubic hair and breast development in girls. Also, EHMC was associated with later pubertal onset of pubic hair and testicular volumes in boys, while OD-PABA correlated with earlier pubertal onset of breast development in girls. OD-PABA also significantly speeded up the progression of pubic hair and breast development in girls. DISCUSSION UV filters were extensively detected. Exposure to EHMC and BP-3 was significantly associated with later pubertal development in boys, and OD-PABA was associated with earlier pubertal development in girls. It demonstrates that the UV filters so widely used in personal care products and widely detected in environments are finding their way back into people where they are distorting endocrine function of adolescents.
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Affiliation(s)
- Yanran Huang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Pengpeng Wang
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Japhet Cheuk-Fung Law
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Yingya Zhao
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Qian Wei
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Yuhan Zhou
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China
| | - Yunhui Zhang
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China.
| | - Huijing Shi
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China; Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China.
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China.
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Hlisníková H, Petrovičová I, Kolena B, Šidlovská M, Sirotkin A. Effects and Mechanisms of Phthalates' Action on Reproductive Processes and Reproductive Health: A Literature Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E6811. [PMID: 32961939 PMCID: PMC7559247 DOI: 10.3390/ijerph17186811] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022]
Abstract
The production of plastic products, which requires phthalate plasticizers, has resulted in the problems for human health, especially that of reproductive health. Phthalate exposure can induce reproductive disorders at various regulatory levels. The aim of this review was to compile the evidence concerning the association between phthalates and reproductive diseases, phthalates-induced reproductive disorders, and their possible endocrine and intracellular mechanisms. Phthalates may induce alterations in puberty, the development of testicular dysgenesis syndrome, cancer, and fertility disorders in both males and females. At the hormonal level, phthalates can modify the release of hypothalamic, pituitary, and peripheral hormones. At the intracellular level, phthalates can interfere with nuclear receptors, membrane receptors, intracellular signaling pathways, and modulate gene expression associated with reproduction. To understand and to treat the adverse effects of phthalates on human health, it is essential to expand the current knowledge concerning their mechanism of action in the organism.
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Affiliation(s)
- Henrieta Hlisníková
- Department of Zoology and Anthropology, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, 949 74 Nitra, Slovakia; (I.P.); (B.K.); (M.Š.); (A.S.)
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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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Application of a combined aggregate exposure pathway and adverse outcome pathway (AEP-AOP) approach to inform a cumulative risk assessment: A case study with phthalates. Toxicol In Vitro 2020; 66:104855. [PMID: 32278033 DOI: 10.1016/j.tiv.2020.104855] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 03/26/2020] [Accepted: 04/05/2020] [Indexed: 12/20/2022]
Abstract
Advancements in measurement and modeling capabilities are providing unprecedented access to estimates of chemical exposure and bioactivity. With this influx of new data, there is a need for frameworks that help organize and disseminate information on chemical hazard and exposure in a manner that is accessible and transparent. A case study approach was used to demonstrate integration of the Adverse Outcome Pathway (AOP) and Aggregate Exposure Pathway (AEP) frameworks to support cumulative risk assessment of co-exposure to two phthalate esters that are ubiquitous in the environment and that are associated with disruption of male sexual development in the rat: di(2-ethylhexyl) phthalate (DEHP) and di-n-butyl phthalate (DnBP). A putative AOP was developed to guide selection of an in vitro assay for derivation of bioactivity values for DEHP and DnBP and their metabolites. AEPs for DEHP and DnBP were used to extract key exposure data as inputs for a physiologically based pharmacokinetic (PBPK) model to predict internal metabolite concentrations. These metabolite concentrations were then combined using in vitro-based relative potency factors for comparison with an internal dose metric, resulting in an estimated margin of safety of ~13,000. This case study provides an adaptable workflow for integrating exposure and toxicity data by coupling AEP and AOP frameworks and using in vitro and in silico methodologies for cumulative risk assessment.
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Cathey A, Watkins DJ, Sánchez BN, Tamayo-Ortiz M, Solano-Gonzalez M, Torres-Olascoaga L, Téllez-Rojo MM, Peterson KE, Meeker JD. Onset and tempo of sexual maturation is differentially associated with gestational phthalate exposure between boys and girls in a Mexico City birth cohort. ENVIRONMENT INTERNATIONAL 2020; 136:105469. [PMID: 31931345 PMCID: PMC7024044 DOI: 10.1016/j.envint.2020.105469] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/12/2019] [Accepted: 01/05/2020] [Indexed: 05/03/2023]
Abstract
Phthalates are endocrine disrupting compounds commonly found in consumer products, exposure to which may influence reproductive maturation. Effects from exposure in utero on the onset and progression of sexual development are understudied. We examined longitudinal associations between gestational phthalate exposure and sexual maturation at two points in adolescence (8-14, 9-18 years). Gestational exposure was quantified using the geometric mean of 3 trimester-specific urinary phthalate metabolite measurements. Sexual maturation was assessed using Tanner stages and menarche onset for girls and Tanner stages and testicular volume for boys. Generalized estimating equations for correlated ordinal multinomial responses were used to model relationships between phthalates and odds of transitioning to the next Tanner stage, while generalized additive (GA) mixed models were used to assess the odds of menarche. All models were adjusted for child age (centered around the mean), BMI z-score, change in BMI between visits, time (years) between visits (ΔT), and interactions between ΔT and mean-centered child age and the natural log of exposure metabolite concentration. Among girls, a doubling of gestational MBzP concentrations was associated with increased odds of being at a higher Tanner stage for breast development at 8-14 years (OR = 4.62; 95% CI: 1.38, 15.5), but with slower progression of breast development over the follow-up period (OR = 0.65 per year; 95% CI: 0.46, 0.92) after adjustment for child age and BMI z-score. Similar results were found for ∑DEHP levels and breast development. In boys, a doubling of gestational MBP concentrations was associated with lower odds of being at a higher Tanner stage for pubic hair growth at 8-14 years (OR = 0.37; 95% CI: 0.14, 0.95) but with faster progression (OR: 1.28; 95% CI: 0.97, 1.69). These results indicate that gestational phthalate exposures may impact the onset and progression of sexual development, and that these relationships differ between boys and girls.
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Affiliation(s)
- Amber Cathey
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Deborah J Watkins
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Brisa N Sánchez
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Marcela Tamayo-Ortiz
- Center for Nutrition and Health Research, Instituto Nacional de Salud Pública, Cuernavaca, MOR, Mexico; Mexican Council of Science and Technology, Mexico City, Mexico
| | - Maritsa Solano-Gonzalez
- Center for Nutrition and Health Research, Instituto Nacional de Salud Pública, Cuernavaca, MOR, Mexico
| | - Libni Torres-Olascoaga
- Center for Nutrition and Health Research, Instituto Nacional de Salud Pública, Cuernavaca, MOR, Mexico
| | - Martha Maria Téllez-Rojo
- Center for Nutrition and Health Research, Instituto Nacional de Salud Pública, Cuernavaca, MOR, Mexico
| | - Karen E Peterson
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - John D Meeker
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
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Yao Y, Chen D, Wu Y, Zhou L, Cheng J, Li Y, Lu S, Yuan G, Liu G. Urinary phthalate metabolites in primary school starters in Pearl River Delta, China: Occurrences, risks and possible sources. ENVIRONMENTAL RESEARCH 2019; 179:108853. [PMID: 31678724 DOI: 10.1016/j.envres.2019.108853] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/16/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Assessment of children's exposure risks of phthalates before puberty is important, as phthalates are ubiquitous and are associated with reproductive development. However, relevant data in Pearl River Delta, China are scarce. Nineteen phthalate metabolites were analyzed in urine samples from 1490 primary school starters (6-8 years old) recruited in 2016-2017 using ultra-performance liquid chromatography and tandem mass spectrometry (UHPLC-MS/MS). Nine phthalate metabolites were detected more than 80% of the urine samples. Monobutyl phthalate (MnBP) was the highest metabolite (median, 212 μg/g creatinine), followed by two short chained phthalate metabolites, four secondary metabolites of di(2-ethylhexyl) phthalate (DEHP), and the primary metabolites of DEHP. The MnBP level was the third highest of those reported worldwide while other metabolites were in the lower range compared with previous studies. Significantly positive associations were found between urinary metabolite levels and family income as well as parent education levels (p < 0.05). Duration since the latest interior decoration was inversely associated with phthalate metabolites (p < 0.05). Significantly positive associations had also been found between the frequency of eating takeaway food and four DEHP metabolites (p < 0.01). The geometric mean of estimated daily intake (EDI) of di-n-butyl phthalate (DnBP), DEHP, di-iso-butyl phthalate (DiBP), dimethyl phthalate, diethyl phthalate and butylbenzyl phthalate (BBzP) were 6.24, 2.67, 1.06, 0.64, 0.44, and 0.01 μg/kg bw/day, respectively. Hazard quotient (HQ) was defined as the ratio of EDI and the tolerable daily intake (TDI). Approximately 38% children had HQ DnBP >1 indicating potential reproductive risks caused by DnBP. To evaluate cumulative exposure risks, hazard index (HI) was calculated as the sum of the HQs of DnBP, DiBP, DEHP, and BBzP. Nearly 48% children had HI > 1 suggesting extremely high cumulative risks in children in Pearl River Delta, China. To our best knowledge, this was the largest study on evaluating phthalate exposure among children in China.
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Affiliation(s)
- Yao Yao
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China; Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dingyan Chen
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Yu Wu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Li Zhou
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
| | - Jinquan Cheng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Yingying Li
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Shaoyou Lu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Guangzhou, 510275, Guangdong, PR China
| | - Guanxiang Yuan
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Guihua Liu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
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Huang Y, Law JCF, Zhao Y, Shi H, Zhang Y, Leung KSY. Fate of UV filter Ethylhexyl methoxycinnamate in rat model and human urine: Metabolism, exposure and demographic associations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:729-736. [PMID: 31195281 DOI: 10.1016/j.scitotenv.2019.05.440] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/03/2019] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
Ethylhexyl methoxycinnamate (EHMC) is one of the most frequently used UV filters in sunscreens and other cosmetic products. Its ubiquitous presence in various environmental matrices and its endocrine disrupting properties have been widely reported. However, we know little about the effect of EHMC exposure on humans, mainly due to its fast metabolism. In this study, urine and plasma of EHMC-dosed rats were analysed to identify its major metabolites. Five metabolites were found, with four firstly reported. Two metabolites were putatively identified as 4-methoxycinnamic acid (4-MCA) and 4'-methoxyacetophenone (4'-MAP). Quantitative results revealed that their excretion concentrations were much higher than the parent compound. Because of these high concentrations, for the human biomonitoring study, EHMC and these two metabolites were detected simultaneously in urine samples from Chinese children and adolescents. The results indicated wide exposure to EHMC, 4-MCA and 4'-MAP. The correlation between urinary concentration of EHMC and 4-MCA as well as 4-MCA and 4'-MAP provided important clues as to the sources and metabolic pathways among these three compounds. Several demographic factors were also assessed with the exposure level. As the first human exposure study of EHMC in a Chinese population, this report would help to establish an exposure database facilitating health risk assessment of EHMC.
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Affiliation(s)
- Yanran Huang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Japhet Cheuk-Fung Law
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Yingya Zhao
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Huijing Shi
- Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yunhui Zhang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China (Fudan University), China; Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - Kelvin Sze-Yin Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen, China.
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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: 90] [Impact Index Per Article: 18.0] [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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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: 52] [Impact Index Per Article: 10.4] [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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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: 38] [Impact Index Per Article: 7.6] [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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Du P, Zhou Z, Huang H, Han S, Xu Z, Bai Y, Li X. Estimating population exposure to phthalate esters in major Chinese cities through wastewater-based epidemiology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:1602-1609. [PMID: 30189576 DOI: 10.1016/j.scitotenv.2018.06.325] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/26/2018] [Accepted: 06/26/2018] [Indexed: 05/27/2023]
Abstract
Phthalate esters (PAEs) are widely used in consumer and industrial products and may thus pose significant health risks. Urine analysis, which has usually been applied to assess the health risks of PAEs, has the drawback of small sample sizes and insufficient representativeness. Wastewater-based epidemiology (WBE) collects wastewater samples containing urine from the entire community and thus is more representative than urine samples. In this work, exposure levels and health risks of PAEs were estimated on a national scale for the first time through the WBE approach. Wastewater samples were collected from 54 wastewater treatment plants in 27 major cities that cover all of the geographic regions of China. The estimated ∑5PAEs exposure levels ranged from 290 μg/inh/d (Lhasa) to 3642 ± 467 μg/inh/d (Zhengzhou) with a mean level of 2184 ± 1173 μg/inh/d. Di-n-butyl phthalate accounted for the highest proportion (65%) in the total exposure level. The ∑5PAEs exposure levels in Southwest China were significantly lower than those in other regions due to the low production and consumption of plastics in the region. The health risks of PAEs were assessed by comparing the estimated daily exposure levels to the acceptable daily exposure levels. For adults, the hazard index that represents cumulative risk of PAEs was above or below 1 depending on a particular reference dose (total daily intake values or the reference dose for anti-androgenicity) that was used for risk calculation. In contrast, the hazard index was above 1 for a significant number of cities for children, regardless of which reference dose was used. The results indicate that health risks of PAE exposure in China cannot be overlooked. Children in China are under considerably greater risks than adults, which warrants further research or proper regulation of PAE use in China.
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Affiliation(s)
- Peng Du
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, PR China
| | - Zilei Zhou
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, PR China
| | - Hongmei Huang
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, PR China
| | - Sheng Han
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, PR China
| | - Zeqiong Xu
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, PR China
| | - Ya Bai
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, PR China
| | - Xiqing Li
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871 Beijing, PR China.
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Mu X, Huang Y, Li J, Yang K, Yang W, Shen G, Li X, Lei Y, Pang S, Wang C, Li X, Li Y. New insights into the mechanism of phthalate-induced developmental effects. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 241:674-683. [PMID: 29902750 DOI: 10.1016/j.envpol.2018.05.095] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/05/2018] [Accepted: 05/31/2018] [Indexed: 06/08/2023]
Abstract
To investigate the biological pathways involved in phthalate-induced developmental effects, zebrafish embryos were exposed to different concentrations of di-(2-ethylhexyl) (DEHP) and di-butyl phthalate (DBP) for 96 h. Embryonic exposure to DEHP and DBP induced body length decrease, yolk sac abnormities, and immune responses (up-regulation of immune proteins and genes). The lipidomic results showed that at a concentration of 50 μg/L, DEHP and DBP significantly reduced the levels of fatty acids, triglycerides, diacylglycerol, and cholesterol. These effects are partly explained by biological pathway enrichment based on data from the transcriptional and proteomic profiles. Co-exposure to DBP and ER antagonist did not significantly relieve the toxic symptoms compared with exposure to DBP alone. This indicates that phthalate-induced developmental abnormities in zebrafish might not be mediated by the ER pathway. In conclusion, we identified the possible biological pathways that mediate phthalate-induced developmental effects and found that these effects may not be driven by estrogenic activation.
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Affiliation(s)
- Xiyan Mu
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China.
| | - Ying Huang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China
| | - Jia Li
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China
| | - Ke Yang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China
| | - Wenbo Yang
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China
| | - Gongming Shen
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China
| | - Xuxing Li
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China
| | - Yunlei Lei
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China
| | - Sen Pang
- College of Sciences, China Agricultural University, Beijing 100193, PR China
| | - Chengju Wang
- College of Sciences, China Agricultural University, Beijing 100193, PR China
| | - Xuefeng Li
- College of Sciences, China Agricultural University, Beijing 100193, PR China
| | - Yingren Li
- Fishery Resource and Environment Research Center, Chinese Academy of Fishery Sciences, Beijing, PR China.
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Sulentic RO, Dumitrascu I, Deziel NC, Gurzau AE. Phthalate Exposure from Drinking Water in Romanian Adolescents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15102109. [PMID: 30257478 PMCID: PMC6209931 DOI: 10.3390/ijerph15102109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/18/2018] [Accepted: 09/22/2018] [Indexed: 01/08/2023]
Abstract
Phthalates are plastic softeners that have been linked to several adverse health outcomes. The relative contributions of different sources to phthalate exposure in populations in different regions and at different life stages is unclear. We examined the relationships between water consumption, consumer product use, and phthalate exposure among 40 adolescents (20 males, 20 females) in Cluj-Napoca, Romania. Interviewers administered a questionnaire about drinking water consumption and use of phthalate-containing consumer products. Four common phthalates were measured in representative samples of participants’ municipal drinking water and consumed bottled water using gas chromatography-mass spectrometry. Urine samples were collected from participants and analyzed for the corresponding phthalate metabolites. Relationships between different exposure measures were assessed using nonparametric tests (Spearman rank correlation coefficients and the Kruskal–Wallis test). Diisobutyl phthalate, dibutyl phthalate, and bis(2-ethylhexyl) phthalate were commonly detected in bottled water, but generally not the municipal drinking water samples. Mono-n-butyl phthalate (MnBP) was the most commonly detected urinary metabolite (detected in 92.5% of participants) and had the highest maximum concentration (1139.77 µg/g creatinine). We did not identify any statistically significant associations between water consumption or consumer product use practices and urinary phthalate metabolite concentrations in our adolescent group, and directions of correlation coefficients differed by individual phthalate compound. While phthalate exposure was widespread, these results highlight the challenges in examining phthalate exposure determinants and emphasize the need for further investigation into understanding exposure sources and potential health risks from chronic low-level exposures.
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Affiliation(s)
- Rose O Sulentic
- Yale School of Public Health, Yale University, 60 College Street, New Haven, CT 06520, USA.
| | - Irina Dumitrascu
- Environmental Health Center, Strada Busuiocului 58, 400240 Cluj-Napoca, Romania.
| | - Nicole C Deziel
- Yale School of Public Health, Yale University, 60 College Street, New Haven, CT 06520, USA.
| | - Anca E Gurzau
- Environmental Health Center, Strada Busuiocului 58, 400240 Cluj-Napoca, Romania.
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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: 69] [Impact Index Per Article: 11.5] [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, 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: 53] [Impact Index Per Article: 8.8] [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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Liao C, Liu W, Zhang J, Shi W, Wang X, Cai J, Zou Z, Lu R, Sun C, Wang H, Huang C, Zhao Z. Associations of urinary phthalate metabolites with residential characteristics, lifestyles, and dietary habits among young children in Shanghai, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 616-617:1288-1297. [PMID: 29122348 DOI: 10.1016/j.scitotenv.2017.10.189] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 06/07/2023]
Abstract
Exposure to household phthalates has been reported to have adverse effects on children's health. In this paper, we used phthalate metabolites in the first morning urine as indicators of household phthalate exposures and examined their associations with residential characteristics, lifestyles and dietary habits among young children. During 2013-2014, we collected morning urines from children aged 5-10years in Shanghai, China and obtained the related information about analyzed factors in this study by questionnaires. Urinary phthalate metabolites were analyzed by isotope dilution-high performance liquid chromatography (HPLC)-heated electrospray ionization source (HESI) coupled with a triple quadrupole mass spectrometry. ANOVA, the Mann-Whitney or Kruskai-Wallis rank tests, and multivariate linear regression analyses were used to examine the target associations. Ten metabolites of seven phthalates in 434 urine samples were analyzed. The detection rates of eight metabolites (MiBP, MnBP, MEHP, MECPP, MEHHP, MEOHP, MEP, and MMP) were >90%, except for MBzP (51.2%), and MCHP with <10.0% of detection rate was not included in analyses. By multivariate linear regression analyses, factors significantly associated with higher concentrations of metabolites included non-usage household air cleaners (MEP and MEHP), changing the child's pillowcase less than one time a week (DEHP metabolites), dusting furniture in the child's bedroom less than three times a week (MMP and MnBP), using more plastic toys (DEHP metabolites and MEP), often having soft drinks (DEHP metabolites) and candies (MiBP). Our results indicated that phthalate exposures were common among Shanghai children and residential characteristics had less significant associations with urinary phthalate metabolites compared with lifestyles and dietary habits. Using less plastic toys, having less candies and soft drinks, using household air cleaner, as well as frequently changing the child's pillowcase and dusting furniture in the child's bedroom could reduce phthalate exposures among children.
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Affiliation(s)
- Chenxi Liao
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China
| | - Wei Liu
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China; Department of Building Science, Tsinghua University, Beijing, China
| | - Jialing Zhang
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China
| | - Wenming Shi
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China
| | - Xueying Wang
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China
| | - Jiao Cai
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China; School of Civil and Architectural Engineering, Yangtze Normal University, Chongqing, China
| | - Zhijun Zou
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China
| | - Rongchun Lu
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China
| | - Chanjuan Sun
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China
| | - Heng Wang
- Zhoushan Center for Disease Control and Prevention, Zhoushan, Zhejiang, China
| | - Chen Huang
- Department of Building Environment and Energy Engineering, School of Environment and Architecture, University of Shanghai for Science and Technology (USST), Shanghai, China.
| | - Zhuohui Zhao
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China; Key Lab of Public Health Safety of the Ministry of Education, Key Lab of Health Technology Assessment, National Health and Family Planning Commission of the People's Republic of China, Shanghai Key Laboratory of Meteorology and Health, Shanghai, China.
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49
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Patiño-García D, Cruz-Fernandes L, Buñay J, Palomino J, Moreno RD. Reproductive Alterations in Chronically Exposed Female Mice to Environmentally Relevant Doses of a Mixture of Phthalates and Alkylphenols. Endocrinology 2018; 159:1050-1061. [PMID: 29300862 DOI: 10.1210/en.2017-00614] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 12/21/2017] [Indexed: 01/27/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) are exogenous compounds that modify hormone biosynthesis, causing adverse effects to human health. Among them, phthalates and alkylphenols are important due to their wide use in plastics, detergents, personal care products, cosmetics, and food packaging. However, their conjoint effects over reproductive female health have not been addressed. The aim of this work was to test the effect of chronically exposed female mice to a mixture of three phthalates [bis (2-ethylhexyl), dibutyl, and benzyl butyl] and two alkylphenols (4-nonylphenol and 4-tert-octylphenol) from conception to adulthood at environmentally relevant doses. These EDCs were administered in two doses: one below the minimal risk dose to cause adverse effects on human development and reproduction [1 mg/kg body weight (BW)/d of the total mixture] and the other one based on the reference value close to occupational exposure in humans (10 mg/kg BW/d of the total mixture). Our results show that both doses had similar effects regarding the uterus and ovary relative weight, estrous cyclicity, serum levels of progesterone and 17β-estradiol, and expression of key elements in the steroidogenesis pathway (acute steroidogenic regulatory protein and CYP19A1). However, only the 1-mg/kg BW/d dose delayed the onset of puberty and the transition from preantral to antral follicles, whereas the 10-mg/kg BW/d dose decreased the number of antral follicles and gonadotropin receptor expression. In addition, we observed changes in several fertility parameters in exposed females and in their progeny (F2 generation). In conclusion, our results indicate that chronic exposure to a complex EDC mixture, at environmentally relevant doses, modifies reproductive parameters in female mice.
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Affiliation(s)
- Daniel Patiño-García
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Leonor Cruz-Fernandes
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Julio Buñay
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jaime Palomino
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ricardo D Moreno
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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50
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Di Lorenzo M, Forte M, Valiante S, Laforgia V, De Falco M. Interference of dibutylphthalate on human prostate cell viability. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 147:565-573. [PMID: 28918339 DOI: 10.1016/j.ecoenv.2017.09.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/31/2017] [Accepted: 09/11/2017] [Indexed: 06/07/2023]
Abstract
Dibutylphthalate (DBP) is an environmental pollutant widely used as plasticizer in a variety of industrial applications worldwide. This agent can be found in personal-care products, children's toy, pharmaceuticals, food products. Exposure to DBP can occur via ingestion and inhalation as well as intravenous or skin contact. DBP belongs to the family of endocrine disrupting chemicals (EDCs) and its effects on reproductive system were demonstrated both in vivo and in vitro. In the present study we evaluated the effects of DBP on human prostate adenocarcinoma epithelial cells (LNCaP) in order to highlight xenoestrogens influence on human prostate. Moreover, we have compared DBP effects with 17β-estradiol action in order to investigate possible mimetical behaviour. We have assessed the effects of both compounds on the cell viability. After then, we have evaluated the expression of genes and proteins involved in cell cycle regulation. Furthermore, we have observed the expression and the cell localization of estrogen (ERs) and androgen (AR) receptors. In conclusion, we have demonstrated that DBP interacts with estrogen hormonal receptor pathway but differently from E2. DBP alters the normal gland physiology and it is involved in the deregulation of prostate cell cycle.
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Affiliation(s)
| | | | - Salvatore Valiante
- Department of Biology, University Federico II of Naples, Naples, Italy; National Institute of Biostructures and Biosystems (INBB), INBB, Rome, Italy.
| | - Vincenza Laforgia
- Department of Biology, University Federico II of Naples, Naples, Italy; National Institute of Biostructures and Biosystems (INBB), INBB, Rome, Italy.
| | - Maria De Falco
- Department of Biology, University Federico II of Naples, Naples, Italy; National Institute of Biostructures and Biosystems (INBB), INBB, Rome, Italy.
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