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Almeida-Toledano L, Navarro-Tapia E, Sebastiani G, Ferrero-Martínez S, Ferrer-Aguilar P, García-Algar Ó, Andreu-Fernández V, Gómez-Roig MD. Effect of prenatal phthalate exposure on fetal development and maternal/neonatal health consequences: A systematic review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175080. [PMID: 39079634 DOI: 10.1016/j.scitotenv.2024.175080] [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: 05/14/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 08/10/2024]
Abstract
The ubiquitous presence of phthalate compounds in cosmetics, personal care products and plastics commonly used in toys, food packaging or household products, results in human exposure with adverse effects on reproductive health and fetal development. Following the PRISMA methodology, this systematic review analyzes the effect of prenatal phthalate exposure on major pregnancy complications, such as gestational diabetes, pregnancy-induced hypertension, fetal growth restriction and preterm birth, and its role in fetal neurodevelopment. This review includes >100 articles published in the last 10 years, showing an association between maternal exposure to phthalates and the risk of developing pregnancy complications. Phthalates are negatively associated with motor skills and memory, and also increase the risk of delayed language acquisition, autism spectrum disorder traits, and behavioral deficits, such as attention deficit hyperactivity disorder in children prenatally exposed to phthalates. Di (2-ethylhexyl) phthalate and its metabolites (mono(2-ethylhexyl) phthalate, mono(3-carboxypropyl) phthalate, mono(2-ethyl-5-hydroxyhexyl) phthalate, mono(2-ethyl-5-oxohexyl) phthalate) are the main compounds associated with the above-mentioned pregnancy complications and fetal neurodevelopmental disorders. In addition, this review discusses the molecular mechanisms responsible for various pregnancy complications and neurodevelopmental disorders, and the critical window of exposure, in order to clarify these aspects. Globally, the most common molecular mechanisms involved in the effects of phthalates are endocrine disruption, oxidative stress induction, intrauterine inflammation, and DNA methylation disorders. In general, the critical window of exposure varies depending on the pathophysiology of the complication being studied, although the first trimester is considered an important period because some of the most vulnerable processes (embryogenesis and placentation) begin early in pregnancy. Future research should aim to understand the specific mechanism of the disruptive effect of each component and to establish the toxic dose of phthalates, as well as to elucidate the most critical period of pregnancy for exposure and the long-term consequences for human health.
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Affiliation(s)
- Laura Almeida-Toledano
- Institut de Recerca Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain; BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu and Hospital Clínic, Universitat de Barcelona, 08950 Barcelona, Spain.
| | - Elisabet Navarro-Tapia
- Grup de Recerca Infancia i Entorn (GRIE), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; Faculty of Health Sciences, Valencian International University (VIU), 46002, Valencia, Spain.
| | - Giorgia Sebastiani
- Department of Neonatology, Hospital Clínic-Maternitat, ICGON, BCNatal, 08028 Barcelona, Spain.
| | - Sílvia Ferrero-Martínez
- Institut de Recerca Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain; BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu and Hospital Clínic, Universitat de Barcelona, 08950 Barcelona, Spain.
| | - Patricia Ferrer-Aguilar
- Institut de Recerca Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain; BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu and Hospital Clínic, Universitat de Barcelona, 08950 Barcelona, Spain.
| | - Óscar García-Algar
- BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu and Hospital Clínic, Universitat de Barcelona, 08950 Barcelona, Spain; Grup de Recerca Infancia i Entorn (GRIE), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; Department of Neonatology, Hospital Clínic-Maternitat, ICGON, BCNatal, 08028 Barcelona, Spain.
| | - Vicente Andreu-Fernández
- Grup de Recerca Infancia i Entorn (GRIE), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; Biosanitary Research Institute, Valencian International University (VIU), 46002, Valencia, Spain.
| | - María Dolores Gómez-Roig
- Institut de Recerca Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain; BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu and Hospital Clínic, Universitat de Barcelona, 08950 Barcelona, Spain.
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Holmer ML, Zilliacus J, Draskau MK, Hlisníková H, Beronius A, Svingen T. Methodology for developing data-rich Key Event Relationships for Adverse Outcome Pathways exemplified by linking decreased androgen receptor activity with decreased anogenital distance. Reprod Toxicol 2024; 128:108662. [PMID: 38986849 DOI: 10.1016/j.reprotox.2024.108662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/03/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
The Adverse Outcome Pathway (AOP) framework has gained widespread acceptance in toxicological disciplines as a tool for aiding chemical hazard assessment. Despite increased activity in AOP development, progress towards a high volume of fully endorsed AOPs has been slow, partly due to the challenging task of constructing complete AOPs according to the AOP Developer's Handbook. To facilitate greater uptake of new knowledge units onto the open-source AOP-wiki platform, a pragmatic approach was recently proposed. This approach involves considering Key Event Relationships (KERs) for individual development through systematic approaches, as they represent essential units of knowledge from which causality can be inferred; from low complexity test data to adverse outcomes in intact organisms. However, more broadly adopted harmonized methodologies for KER development would be desirable. Using the AOP Developer's Handbook as a guide, a KER linking 'decreased androgen receptor (AR) activity' with 'reduced anogenital distance (AGD)' was developed to demonstrate a methodology applicable for future developments of KERs requiring systematic literature retrieval approaches.
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Affiliation(s)
- Marie L Holmer
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark.
| | - Johanna Zilliacus
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Monica K Draskau
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Henrieta Hlisníková
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Anna Beronius
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Terje Svingen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
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3
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Li H, Kang S, Gu X, Yang H, Chen H, Mao Z, Zeng Q, Chen Y, Wang W, Gong C. The toxicological effects of life-cycle exposure to harmful benthic cyanobacteria Oscillatoria on zebrafish growth and reproduction: A comparative study with planktonic Microcystis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169302. [PMID: 38104816 DOI: 10.1016/j.scitotenv.2023.169302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/29/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
The risks of planktonic cyanobacteria blooms have been the focus of much scientific research, but studies on the ecotoxicological effects of benthic cyanobacteria are lagging. The impacts of cyanobacteria cells on fish populations might be more complex in contrast to purified cyanotoxins or cyanobacteria extracts. This study systematically compared the chronic effects of benthic Oscillatoria sp. (producing cylindrospermopsins) and planktonic Microcystis aeruginosa (producing microcystins) on the growth and reproduction of zebrafish through life-cycle exposure (5- 90 days post fertilization). The results showed that both Oscillatoria sp. and M. aeruginosa exposure caused growth inhibition and fecundity reduction in F0 generation by disrupting sex hormone levels, delayed ovarian and sperm development, and induced pathological lesions in zebrafish gonads. Furthermore, exposure to Oscillatoria sp. or M. aeruginosa in adult zebrafish increased mortality and teratogenicity in F1 embryos (without exposure), indicating a parental transmission effect of developmental toxicity. The difference was that M. aeruginosa exposure led to significant alterations in pathways, such as tissue development, redox processes, and steroid hormone synthesis. In contrast, Oscillatoria sp. exposure primarily disrupted the PPAR signaling pathway, cell adhesion molecules, and lipid transport pathways. Interestingly, the differentially expressed genes revealed that male fish were more sensitive to harmful cyanobacteria than females, whether exposed to Oscillatoria sp. or M. aeruginosa. These findings contribute to a better mechanistic understanding of the chronic toxic effects of distinct types of harmful cyanobacteria, suggesting that the ecological risk of benthic cyanobacteria requires further attention.
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Affiliation(s)
- Hongmin Li
- School of Geography and Tourism, Qufu Normal University, Rizhao 276826, China
| | - Siqi Kang
- School of Geography and Tourism, Qufu Normal University, Rizhao 276826, China
| | - Xiaohong Gu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Huiting Yang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huihui Chen
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zhigang Mao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Qingfei Zeng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yanfeng Chen
- School of Geography and Tourism, Qufu Normal University, Rizhao 276826, China
| | - Wenxia Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China; College of Life Sciences, Linyi University, Linyi, Shandong 276000, China
| | - Chen Gong
- School of Geography and Tourism, Qufu Normal University, Rizhao 276826, China
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Yöntem FD, Ayaz S, Bulut Ş, Aldoğan EH, Ahbab MA. Endoplasmic reticulum stress and pro-inflammatory responses induced by phthalate metabolites monoethylhexyl phthalate and monobutyl phthalate in 1.1B4 pancreatic beta cells. Toxicology 2024; 501:153695. [PMID: 38048874 DOI: 10.1016/j.tox.2023.153695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/25/2023] [Accepted: 11/30/2023] [Indexed: 12/06/2023]
Abstract
In recent years, phthalates and their metabolites have been associated with metabolic diseases such as diabetes mellitus. To investigate the effects of phthalate metabolites exposure on insulin production and release, 1.1B4 pancreatic beta cells were treated with different concentrations (0.001-1000 µM) of monoethylhexyl phthalate (MEHP) and monobutyl phthalate (MBP). For such purpose, the 1.1B4 cells were evaluated for their viability, apoptosis rate, lysosomal membrane permeabilization (LMP), mitochondrial membrane potential (ΔΨm), oxidative stress, ER stress status, in addition to their secretory functions. MEHP, not MBP, exhibited a notable reduction in metabolic viability, particularly at higher concentrations (500 and 1000 µM) following 24-hour exposure. Similarly, both MEHP and MBP induced decreased metabolic viability at high concentrations after 48- and 72-hour exposure. Notably, neither MEHP nor MBP demonstrated a significant impact on apoptosis rates after 24-hour exposure, and MBP induced mild necrosis at 1000 µM concentration. Cell proliferation rates, indicated by PCNA expression, decreased with 10 and 1000 µM MEHP and 0.1 and 10 µM MBP exposures. LMP analysis revealed an increase in 1000 µM MBP group. Exposure to 0.001 µM of both MEHP and MBP significantly reduced cellular glutathione (GSH) levels. No significant change in intracellular reactive oxygen species (ROS) levels and ΔΨm was observed, but MBP-exposed cells exhibited elevated levels of lipid peroxidation. Functional assessments of pancreatic beta cells unveiled reduced insulin secretion at low glucose concentrations following exposure to both MEHP and MBP, with concurrent alterations in the expression levels of key proteins associated with beta cell function, including GLUT1, GCK, PDX1, and MafA. Moreover, MEHP and MBP exposures were associated with alterations in ER stress-related pathways, including JNK, GADD153, and NF-κB expression, as well as PPARα and PPARγ levels. In conclusion, this study provides comprehensive insights into the diverse impacts of MEHP and MBP on 1.1B4 pancreatic beta cells, emphasizing their potential role in modulating cell survival, metabolic function, and stress response pathways.
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Affiliation(s)
- Fulya Dal Yöntem
- Koç University, Faculty of Medicine, Department of Biophysics, Istanbul, Turkey; Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - Sinem Ayaz
- Istanbul University, Cerrahpasa, Institute of Graduate Studies, Department of Clinical Microbiology, Istanbul, Turkey; Haliç University, Faculty of Medicine, Department of Clinical Microbiology, Istanbul, Turkey
| | - Şeyma Bulut
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Biology, Istanbul, Turkey; Bezmialem Vakıf University, Institute of Health Sciences, Department of Biotechnology, Istanbul, Turkey
| | | | - Müfide Aydoğan Ahbab
- University of Health Sciences Türkiye, Hamidiye Vocational School of Health Services, Istanbul, Turkey.
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5
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Pérez PA, Toledo J, Vitellini F, Cuello VN, Cantarelli V, Ponzio M, Mukdsi JH, Gutiérrez S. Environmentally relevant DEHP exposure during gestational and lactational period inhibits filamin a testicular expression. J Mol Histol 2023; 54:509-520. [PMID: 37572267 DOI: 10.1007/s10735-023-10144-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 08/07/2023] [Indexed: 08/14/2023]
Abstract
Toxicological studies have revealed that DEHP exposure during pregnancy may induce developmental disorders, especially in male offspring, leading to morphological and functional alterations in the reproductive system by mechanisms that should be investigated. Thus, the aim of this work was to analyze the testicular toxicity induced by an environmentally relevant DEHP dose during development and its impact on FLNA, a protein that participates in the blood-testis barrier assembly. We used male Wistar rats exposed to DEHP during pregnancy and lactation. The results showed that DEHP exposure during development and lactation increased body weight, decreased gonadal weight and shortened anogenital distance. This phthalate induced morphological changes in the testis, suggestive of hypospermatogenesis. DEHP exposure decreased the number of FLNA positive cells and the expression of FLNA and claudin-1 in prepubertal testes. Furthermore, DEHP inhibited FLNA and claudin-1 protein expression in adult male rats. These results indicated that exposure to DEHP during gestation and lactation perturbed testis development and suggested that FLNA is a target protein of DEHP, possibly contributing to the phthalate-induced damage on BTB.
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Affiliation(s)
- Pablo A Pérez
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina
- Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Jonathan Toledo
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina
- Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Facundo Vitellini
- Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Victoria Navall Cuello
- Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Verónica Cantarelli
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina
- Instituto de Fisiología Humana, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Marina Ponzio
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina
- Instituto de Fisiología Humana, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Jorge H Mukdsi
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina
- Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Silvina Gutiérrez
- Instituto de Investigaciones en Ciencias de la Salud (INICSA), Consejo Nacional de Investigaciones Científicas y Técnicas, Córdoba, Argentina.
- Centro de Microscopía Electrónica, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Córdoba, Argentina.
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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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Milanović M, Milošević N, Milić N, Stojanoska MM, Petri E, Filipović JM. Food contaminants and potential risk of diabetes development: A narrative review. World J Diabetes 2023; 14:705-723. [PMID: 37383596 PMCID: PMC10294057 DOI: 10.4239/wjd.v14.i6.705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/03/2023] [Accepted: 04/13/2023] [Indexed: 06/14/2023] Open
Abstract
The number of people diagnosed with diabetes continues to increase, especially among younger populations. Apart from genetic predisposition and lifestyle, there is increasing scientific and public concern that environmental agents may also contribute to diabetes. Food contamination by chemical substances that originate from packaging materials, or are the result of chemical reactions during food processing, is generally recognized as a worldwide problem with potential health hazards. Phthalates, bisphenol A (BPA) and acrylamide (AA) have been the focus of attention in recent years, due to the numerous adverse health effects associated with their exposure. This paper summarizes the available data about the association between phthalates, BPA and AA exposure and diabetes. Although their mechanism of action has not been fully clarified, in vitro, in vivo and epidemiological studies have made significant progress toward identifying the potential roles of phthalates, BPA and AA in diabetes development and progression. These chemicals interfere with multiple signaling pathways involved in glucose and lipid homeostasis and can aggravate the symptoms of diabetes. Especially concerning are the effects of exposure during early stages and the gestational period. Well-designed prospective studies are needed in order to better establish prevention strategies against the harmful effects of these food contaminants.
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Affiliation(s)
- Maja Milanović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad 21000, Serbia
| | - Nataša Milošević
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad 21000, Serbia
| | - Nataša Milić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad 21000, Serbia
| | - Milica Medić Stojanoska
- Faculty of Medicine, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Center of Vojvodina, University of Novi Sad, Novi Sad 21000, Serbia
| | - Edward Petri
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad 21000, Serbia
| | - Jelena Marković Filipović
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad 21000, Serbia
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Yao X, Geng S, Zhu L, Jiang H, Wen J. Environmental pollutants exposure and gestational diabetes mellitus: Evidence from epidemiological and experimental studies. CHEMOSPHERE 2023; 332:138866. [PMID: 37164202 DOI: 10.1016/j.chemosphere.2023.138866] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/05/2023] [Accepted: 05/05/2023] [Indexed: 05/12/2023]
Abstract
Except for known sociodemographic factors, long-term exposure to environmental pollutants has been shown to contribute to the development of gestational diabetes mellitus (GDM), but the conclusions remain controversial. To provide a comprehensive overview of the association between environmental pollutants and GDM, we performed a systematic review and meta-analysis. Several electronic databases (PubMed, Embase, Web of Science, Medline and Cochrane) were searched for related epidemiological and experimental studies up to September 2022. For epidemiological studies, a meta-analysis was carried out to appraise the effect of environmental pollutants, including polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), per- and polyfluoroalkyl substances (PFASs), phenols, phthalates (PAEs), polybrominated diphenyl ethers (PBDEs) and parabens exposure on GDM. Moreover, we also summarized possible biological mechanisms linking pollution exposure and GDM based on the included experimental studies. A total of 80 articles were enrolled, including 38 epidemiological studies and 42 experimental studies. Meta-analysis results showed that exposure to PAEs [OR (95%CI) = 1.07 (1.00, 1.14)], PFASs [OR (95%CI) = 1.10 (1.01, 1.19)], as well as PCBs [OR (95%CI) = 1.18 (1.02, 1.36)] and PBDEs [OR (95%CI) = 1.33 (1.17, 1.50)] significantly increased the risk of GDM, but no significant effects were found for phenols, OCPs, and parabens. In addition, experimental studies suggested that the potential biological mechanisms of environmental pollutants contributing to GDM may involve insulin resistance, β-cell dysfunction, neurohormonal dysfunction, inflammation, oxidative stress, epigenetic modification, and alterations in gut microbiome. In conclusion, long-term environmental pollutants exposure may induce the development of GDM, and there may be a synergistic effect between the homologs. However, studies conducted on the direct biological link between environmental pollutants and GDM were few. More prospective studies and high-quality in vivo and in vitro experiments were needed to investigate the specific effects and mechanisms.
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Affiliation(s)
- Xiaodie Yao
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China
| | - Shijie Geng
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China
| | - Lijun Zhu
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China
| | - Hua Jiang
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China.
| | - Juan Wen
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China.
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9
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Guerra MT, Erthal RP, Punhagui-Umbelino APF, Trinque CM, Torres de Bari MA, Nunes TDM, Costa WF, Cleto PH, Fernandes GSA. Reproductive toxicity of maternal exposure to di(2-ethylhexyl)phthalate and butyl paraben (alone or in association) on both male and female Wistar offspring. J Appl Toxicol 2023; 43:242-261. [PMID: 35962557 DOI: 10.1002/jat.4377] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/18/2022] [Accepted: 08/05/2022] [Indexed: 01/17/2023]
Abstract
Parabens and phthalates are commonly found as contaminants in human fluids and are able to provoke reproductive toxicity, being considered endocrine disruptors. To evaluate the effects of phthalate and paraben, alone or in combination, on reproductive development of the offspring, female pregnant Wistar rats were allocated in six experimental groups: Three control groups (gavage [CG], subcutaneous [CS], and gavage + subcutaneous) received corn oil as vehicle, and the remaining groups were exposed to di(2-ethylhexyl)phthalate (DEHP) (500 mg/kg, gavage), butyl paraben (BP) (100 mg/kg, subcutaneously), or MIX (DEHP + BP), from Gestational Day 12 until Postnatal Day (PND) 21. The following parameters were assessed on the offspring: anogenital distance and weight at PND 1, nipple counting at PND 13, puberty onset, estrous cycle, weights of reproductive and detoxifying organs, histological evaluation of reproductive organs, and sperm evaluations (counts, morphology, and motility). Female pups from MIX group presented reduced body weight at PND 1, lower AGD, and decreased endometrium thickness. Male animals showed decreased body weight at PND 1 and lower number of Sertoli cells on DEHP and MIX groups, MIX group revealed increase of abnormal seminiferous tubules, DEHP animals presented delayed preputial separation and higher percentage of immotile sperms, and BP males presented diminished number of Leydig cells. In conclusion, the male offspring was more susceptible to DEHP toxicity; even when mixed to paraben, the main negative effects observed seem to be due to antiandrogenic phthalate action. On the other hand, DEHP seems to be necessary to improve the effects of BP on reducing estrogen-dependent and increasing androgen-dependent events.
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Affiliation(s)
| | - Rafaela Pires Erthal
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina-UEL, Londrina, Brazil
| | | | - Camila Moreira Trinque
- Department of General Biology, Biological Sciences Center, State University of Londrina-UEL, Londrina, Brazil
| | | | | | - Wagner Ferrari Costa
- Department of General Biology, Biological Sciences Center, State University of Londrina-UEL, Londrina, Brazil
| | - Pedro Horácio Cleto
- Department of General Biology, Biological Sciences Center, State University of Londrina-UEL, Londrina, Brazil
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10
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Kay JE, Cardona B, Rudel RA, Vandenberg LN, Soto AM, Christiansen S, Birnbaum LS, Fenton SE. 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] [MESH Headings] [Grants] [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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Affiliation(s)
| | | | | | - Laura N Vandenberg
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - Ana M Soto
- Tufts University School of Medicine, Boston, MA, USA
| | - Sofie Christiansen
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Linda S Birnbaum
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Suzanne E Fenton
- Mechanistic Toxicology Branch, Division of the National Toxicology Program, National Institutes of Environmental Health Sciences, National Institutes of Health, Durham, NC, USA
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11
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Yang TN, Li XN, Wang YX, Ma XY, Li JL. Disrupted microbiota-barrier-immune interaction in phthalates-mediated barrier defect in the duodenum. CHEMOSPHERE 2022; 308:136275. [PMID: 36058374 DOI: 10.1016/j.chemosphere.2022.136275] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/15/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
As one of the most used phthalates, Di (2-ethylhexyl) phthalate (DEHP) is a widespread environmental contaminant. Extremely persistent plastic can enter the food chain of animals through the aquatic environment, affect metabolic pathways and cause damage to the digestive system. But the molecular mechanism of its toxic effects on the duodenum in birds has not been elucidated. To investigate the toxicity of phthalates in the duodenum, quails were gavaged with 250, 500, and 750 mg/kg doses of DEHP for 45 days, and water and oil control groups were retained. This study revealed that subchronic exposure to DEHP could lead to duodenal barrier defect in quail. The damage to duodenum was reflected in a reduction in V/C and tight junction proteins. Moreover, DEHP also led to a breakdown of antimicrobial defenses through the flora derangement, which acted as a biological barrier. The massive presence of Lipopolysaccharide (LPS) led to the activation of TLR4 receptors. In addition, DEHP activated oxidative stress, which synergized the inflammatory response induced by the TLR4-NFκB pathway, and further promoted duodenum damage. This study provides a base for the further effect of phthalates on the microbiota-barrier-immune interaction.
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Affiliation(s)
- Tian-Ning Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xue-Nan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, PR China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yu-Xiang Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xiang-Yu Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, PR China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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12
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Ye X, Zhou T, Qin Y, He S, Zhang H, Ding S. Reproductive toxicity of dibutyl phthalate adsorbed on carbon nanotubes in male Balb/C mice. Reprod Toxicol 2022; 110:180-187. [PMID: 35487397 DOI: 10.1016/j.reprotox.2022.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/22/2022] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
Dibutyl phthalate (DBP) is an environmental hormone disrupter. This study was designed to investigate whether DBP adsorbed in multi-walled carbon nanotubes (MWCNTs) can easily cross the blood-testis barrier and slow down the degradation of DBP in male mice, thereby prolonging the interference effect of DBP. The results showed that: in male Balb/C mice, the sperm density of the MWCNTs group and the DBP plus MWCNTs group decreased significantly (p < 0.05); and the sperm deformity rate increased significantly (p < 0.05). Testicular tissue sections from the combined exposure group showed that most of the seminiferous tubules were atrophied, there were more large gaps between the cells in the tubules, and the number of mature-sperm decreased. The reactive oxygen species (ROS) levels increased significantly in the combined exposure group (p < 0.01). Proteomics results showed that there were 231 differentially expressed proteins in the combined exposure group compared with the MWCNTs only group, and 69 differentially expressed proteins compared with the DBP group. GO enrichment analysis showed that the differentially expressed proteins mainly include: 60s acid ribosomal protein P1; nuclear autoantigen sperm protein; centromere protein V; and other proteins related to cell division. These results indicate that MWCNTs with adsorbed DBP can increase oxidative damage in the testis of male mice, interfere with DNA replication and cell division in testicular tissue cells, induce cell apoptosis, and destroy the normal spermatogenic function of the testis.
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Affiliation(s)
- Xin Ye
- Liquor Marking Biological Technology and Application of Key Laboratory of Sichuan Province, College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China
| | - Tingting Zhou
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Hubei, China
| | - Yujie Qin
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Hubei, China
| | - Suli He
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Hubei, China
| | - Hongmao Zhang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Hubei, China.
| | - Shumao Ding
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Hubei, China.
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13
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Wang J, Zhang X, Li Y, Liu Y, Tao L. Exposure to Dibutyl Phthalate and Reproductive-Related Outcomes in Animal Models: Evidence From Rodents Study. Front Physiol 2021; 12:684532. [PMID: 34955869 PMCID: PMC8692859 DOI: 10.3389/fphys.2021.684532] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
Background: Dibutyl phthalate (DBP) was an endocrine disruptor, which may lead to cancer and affects reproductive function when accumulated in the body. But the precise role of DBP in the reproductive system remained controversial. Objective: We employed the meta-analysis to explore the relationship between DBP and reproductive-related outcomes. Methods: We searched relevant literature in PubMed, EMBASE, and Web of Science databases. The standardized mean differences (SMDs) and their 95% CIs were measured by random-effects models. Funnel plots and Egger’s regression test were applied to assess publication bias. Results: Finally, 19 literatures were included in this research. The outcomes revealed that DBP was negatively correlated with reproductive organs weight (testis weight: SMD: −0.59; 95% Cl: −1.23, −0.23; seminal vesicles weight: SMD: −0.74; 95% Cl: −1.21, −0.27; prostate weight: SMD: −0.46; 95% Cl: −0.76, −0.16) and sperm parameters (sperm morphology: SMD: 1.29; 95% Cl: 0.63, 1.94; sperm count: SMD: −1.81; 95% Cl: −2.39, −1.23; sperm motility: SMD: −1.92; 95% Cl: −2.62, −1.23). Conclusion: Our research demonstrated that DBP may be negatively associated with reproductive-related indicators, especially at Gestation exposure period and middle dose (100–500 mg/kg/day).
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Affiliation(s)
- Jiawei Wang
- Department of Urology, The Second People's Hospital of Wuhu, Wuhu, China
| | - Xi Zhang
- The State Key Laboratory of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yang Li
- Department of Urology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Yingqing Liu
- Department of Urology, The Second People's Hospital of Wuhu, Wuhu, China
| | - Lingsong Tao
- Department of Urology, The Second People's Hospital of Wuhu, Wuhu, China
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14
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Ma YB, Manzoor R, Jia PP, Bian WP, Hamid N, Xie ZY, Pei DS. Transcriptome and in silico approaches provide new insights into the mechanism of male reproductive toxicity induced by chronic exposure to DEHP. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117944. [PMID: 34391046 DOI: 10.1016/j.envpol.2021.117944] [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: 05/21/2021] [Revised: 08/05/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) can affect the male reproductive system in vertebrates, but the underlying molecular mechanism is still elusive. Therefore, in this study, we aimed to dig the in-depth mechanism of DEHP-induced reproductive toxicity on male zebrafish via testicular transcriptome using embryo exposed at the environmentally relevant concentration (ERC) of 100 μg/L for 111 days. Moreover, our results were further confirmed via in silico technique and bioassay experimental in vitro (cell lines) and in vivo (zebrafish). The results showed DEHP exposure could affect male spermatogenesis, altered gonad histology, and reduced egg fertilization rate. Transcriptome analysis identified 1879 significant differentially expressed genes enriched in the exposure group. Twenty-seven genes related to three pathways of reproduction behavior were further validated by qPCR. In silico molecular docking revealed that DEHP and its metabolism bind to the zebrafish progesterone receptor (Pgr), suggesting the potential disruption of DEHP to the normal Pgr signaling. To further validate it, a wild-type Pgr plasmid and its mutants on specific binding sites were constructed. The transfection and microinjection experiment demonstrated that these binding sites mutations of Pgr affected the expression levels of male reproductive toxicity. Taken together, our study provided new insight into the molecular mechanisms of male reproductive toxicity induced by DEHP, and Pgr may serve as an important target binding by DEHP pollution, which needs further study in the future.
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Affiliation(s)
- Yan-Bo Ma
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rakia Manzoor
- University of Chinese Academy of Sciences, Beijing, 100049, China; State Key Laboratory of Molecular Development Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Pan-Pan Jia
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wan-Ping Bian
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Naima Hamid
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhuo-Yuan Xie
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - De-Sheng Pei
- School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.
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15
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Enangue Njembele AN, Tremblay JJ. Mechanisms of MEHP Inhibitory Action and Analysis of Potential Replacement Plasticizers on Leydig Cell Steroidogenesis. Int J Mol Sci 2021; 22:ijms222111456. [PMID: 34768887 PMCID: PMC8584274 DOI: 10.3390/ijms222111456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/13/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022] Open
Abstract
Steroid production in Leydig cells is stimulated mainly by the pituitary luteinizing hormone, which leads to increased expression of genes involved in steroidogenesis, including the gene encoding the steroidogenic acute regulatory (STAR) protein. Mono(2-ethylhexyl)phthalate (MEHP), the active metabolite of the widely used plasticizer DEHP, is known to disrupt Leydig steroidogenesis but its mechanisms of action remain poorly understood. We found that MEHP caused a significant reduction in hormone-induced steroid hormone production in two Leydig cell lines, MA-10 and MLTC-1. Consistent with disrupted cholesterol transport, we found that MEHP represses cAMP-induced Star promoter activity. MEHP responsiveness was mapped to the proximal Star promoter, which contains multiple binding sites for several transcription factors. In addition to STAR, we found that MEHP also reduced the levels of ferredoxin reductase, a protein essential for electron transport during steroidogenesis. Finally, we tested new plasticizers as alternatives to phthalates. Two plasticizers, dioctyl succinate and 1,6-hexanediol dibenzoate, had no significant effect on hormone-induced steroidogenesis. Our current findings reveal that MEHP represses steroidogenesis by affecting cholesterol transport and its conversion into pregnenolone. We also found that two novel molecules with desirable plasticizer properties have no impact on Leydig cell steroidogenesis and could be suitable phthalate replacements.
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Affiliation(s)
- Annick N. Enangue Njembele
- Reproduction, Mother and Child Health, Room T3-67, Centre de Recherche du CHU de Québec–Université Laval CHUL 2705 Laurier Blvd., Québec City, QC G1V 4G2, Canada;
| | - Jacques J. Tremblay
- Reproduction, Mother and Child Health, Room T3-67, Centre de Recherche du CHU de Québec–Université Laval CHUL 2705 Laurier Blvd., Québec City, QC G1V 4G2, Canada;
- Centre for Research in Reproduction, Development and Intergenerational Health, Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec City, QC G1V 0A6, Canada
- Correspondence: ; Tel.: +1-418-525-4444 (ext. 46254)
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16
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López-Rodríguez D, Aylwin CF, Delli V, Sevrin E, Campanile M, Martin M, Franssen D, Gérard A, Blacher S, Tirelli E, Noël A, Lomniczi A, Parent AS. Multi- and Transgenerational Outcomes of an Exposure to a Mixture of Endocrine-Disrupting Chemicals (EDCs) on Puberty and Maternal Behavior in the Female Rat. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:87003. [PMID: 34383603 PMCID: PMC8360047 DOI: 10.1289/ehp8795] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 06/28/2021] [Accepted: 07/13/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND The effects of endocrine-disrupting chemicals (EDCs) on fertility and reproductive development represent a rising concern in modern societies. Although the neuroendocrine control of sexual maturation is a major target of EDCs, little is known about the potential role of the hypothalamus in puberty and ovulation disruption transmitted across generations. OBJECTIVES We hypothesized that developmental exposure to an environmentally relevant dose of EDC mixture could induce multi- and/or transgenerational alterations of sexual maturation and maternal care in female rats through epigenetic reprograming of the hypothalamus. We investigated the transmission of a disrupted reproductive phenotype via the maternal germline or via nongenomic mechanisms involving maternal care. METHODS Adult female Wistar rats were exposed prior to and during gestation and until the end of lactation to a mixture of the following 13 EDCs: di-n-butyl phthalate (DnBP), di(2-ethylhexyl) phthalate (DEHP), bisphenol A (BPA), vinclozolin, prochloraz, procymidone, linuron, epoxynaxole, dichlorodiphenyldichloroethylene, octyl methoxynimmate, 4-methylbenzylidene camphor (4-MBC), butylparaben, and acetaminophen. Perinatally exposed offspring (F1) were mated with unexposed males to generate germ cell (F2) and transgenerationally exposed (F3 and F4) females. Sexual maturation, maternal behavior, and hypothalamic targets of exposure were studied across generations. RESULTS Germ cell (F2) and transgenerationally (F3) EDC-exposed females, but not F1, displayed delayed pubertal onset and altered folliculogenesis. We reported a transgenerational alteration of key hypothalamic genes controlling puberty and ovulation (Kiss1, Esr1, and Oxt), and we identified the hypothalamic polycomb group of epigenetic repressors as actors of this mechanism. Furthermore, we found a multigenerational reduction of maternal behavior (F1-F3) induced by a loss in hypothalamic dopaminergic signaling. Using a cross-fostering paradigm, we identified that the reduction in maternal phenotype was normalized in EDC-exposed pups raised by unexposed dams, but no reversal of the pubertal phenotype was achieved. DISCUSSION Rats developmentally exposed to an EDC mixture exhibited multi- and transgenerational disruption of sexual maturation and maternal care via hypothalamic epigenetic reprogramming. These results raise concerns about the impact of EDC mixtures on future generations. https://doi.org/10.1289/EHP8795.
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Affiliation(s)
| | - Carlos Francisco Aylwin
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University (OHSU), Portland, Oregon, USA
| | | | - Elena Sevrin
- GIGA Neurosciences, Neuroendocrinology Unit, University of Liège, Liège, Belgium
| | - Marzia Campanile
- GIGA Neurosciences, Neuroendocrinology Unit, University of Liège, Liège, Belgium
| | - Marion Martin
- Lille Neuroscience & Cognition (LilNCog), Institut national de la santé et de la recherche médicale (Inserm), CHU Lille, Lille, France
| | - Delphine Franssen
- GIGA Neurosciences, Neuroendocrinology Unit, University of Liège, Liège, Belgium
| | - Arlette Gérard
- GIGA Neurosciences, Neuroendocrinology Unit, University of Liège, Liège, Belgium
| | - Silvia Blacher
- Tumor and Development Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Ezio Tirelli
- Department of Psychology: Cognition and Behavior, University of Liège, Liège, Belgium
| | - Agnès Noël
- Tumor and Development Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Alejandro Lomniczi
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University (OHSU), Portland, Oregon, USA
| | - Anne-Simone Parent
- GIGA Neurosciences, Neuroendocrinology Unit, University of Liège, Liège, Belgium
- Department of Pediatrics, University Hospital Liège, Liège, Belgium
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17
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Adibi JJ, Layden AJ, Birru RL, Miragaia A, Xun X, Smith MC, Yin Q, Millenson ME, O’Connor TG, Barrett ES, Snyder NW, Peddada S, Mitchell RT. First trimester mechanisms of gestational sac placental and foetal teratogenicity: a framework for birth cohort studies. Hum Reprod Update 2021; 27:747-770. [PMID: 33675653 PMCID: PMC8222765 DOI: 10.1093/humupd/dmaa063] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/18/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The function of the gestational sac (GS) and the placenta in the closely related processes of embryogenesis and teratogenicity in the first trimester has been minimally described. The prevailing assumption is that direct teratogenic effects are mediated by the critical extraembryonic organ, the placenta, which either blocks or transfers exposures to the foetus. Placental transfer is a dominant mechanism, but there are other paradigms by which the placenta can mediate teratogenic effects. Knowledge of these paradigms and first trimester human developmental biology can be useful to the epidemiologist in the conduct of biomarker-based studies of both maternal and child health. OBJECTIVE AND RATIONALE Our aim is to provide a causal framework for modelling the teratogenic effects of first trimester exposures on child health outcomes mediated by the GS and placenta using biomarker data collected in the first trimester. We initially present first trimester human developmental biology for the sake of informing and strengthening epidemiologic approaches. We then propose analytic approaches of modelling placental mechanisms by way of causal diagrams using classical non-embryolethal teratogens (diethylstilboestrol [DES], folic acid deficiency and cytomegalovirus [CMV]) as illustrative examples. We extend this framework to two chronic exposures of particular current interest, phthalates and maternal adiposity. SEARCH METHODS Information on teratogens was identified by a non-systematic, narrative review. For each teratogen, we included papers that answered the five following questions: (i) why were these exposures declared teratogens? (ii) is there a consensus on biologic mechanism? (iii) is there reported evidence of a placental mechanism? (iv) can we construct a theoretical model of a placental mechanism? and (v) can this knowledge inform future work on measurement and modelling of placental-foetal teratogenesis? We prioritized literature specific to human development, the organogenesis window in the first trimester and non-embryolethal mechanisms. OUTCOMES As a result of our review of the literature on five exposures considered harmful in the first trimester, we developed four analytic strategies to address first trimester placental mechanisms in birth cohort studies: placental transfer and direct effects on the foetus (DES and maternal adiposity), indirect effects through targeted placental molecular pathways (DES and phthalates), pre-placental effects through disruptions in embryonic and extraembryonic tissue layer differentiation (folic acid deficiency), and multi-step mechanisms that involve maternal, placental and foetal immune function and inflammation (DES and CMV). WIDER IMPLICATIONS The significance of this review is to offer a causal approach to classify the large number of potentially harmful exposures in pregnancy when the exposure occurs in the first trimester. Our review will facilitate future research by advancing knowledge of the first trimester mechanisms necessary for researchers to effectively associate environmental exposures with child health outcomes.
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Affiliation(s)
- Jennifer J Adibi
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alexander J Layden
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rahel L Birru
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alexandra Miragaia
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xiaoshuang Xun
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Megan C Smith
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Qing Yin
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Thomas G O’Connor
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, USA
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, USA
| | - Emily S Barrett
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ, USA
| | - Nathaniel W Snyder
- Department of Microbiology and Immunology, Center for Metabolic Disease Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Shyamal Peddada
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rod T Mitchell
- MRC Centre for Reproductive Health, The University of Edinburgh, Queens Medical Research Institute, Edinburgh, UK
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Wang H, Yang X, Li J, Qi Z, Liu B, Liu W, Xu B, Xu Z, Deng Y. Research progress on the effect of Di-(2-ethylhexyl) phthalate (DEHP) on reproductive health at different periods in life. Reprod Fertil Dev 2021; 33:RD20135. [PMID: 33941309 DOI: 10.1071/rd20135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 03/04/2021] [Indexed: 11/23/2022] Open
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is a representative endocrine-disrupting chemical (EDC) that has reproductive, developmental, neurological and immune toxicity in humans and rodents, of which damage to the reproductive system is the most serious. However, exposure to DEHP at different stages of life may produce different symptoms. Studies on this substance are also controversial. This review describes the reproductive effects of DEHP in males and females at different life stages, including infancy, childhood and adulthood.
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Ding Y, Xu T, Mao G, Chen Y, Qiu X, Yang L, Zhao T, Xu X, Feng W, Wu X. Di-(2-ethylhexyl) phthalate-induced hepatotoxicity exacerbated type 2 diabetes mellitus (T2DM) in female pubertal T2DM mice. Food Chem Toxicol 2021; 149:112003. [PMID: 33484791 DOI: 10.1016/j.fct.2021.112003] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 01/10/2021] [Accepted: 01/14/2021] [Indexed: 12/25/2022]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP), one of the most common plasticizers, is closely associated with a high prevalence of pubertal type 2 diabetes mellitus (T2DM). Numerous studies have indicated that DEHP-induced metabolic toxicity exhibits sex differences. In this study, the sex differences in the effect of DEHP on pubertal T2DM (P-T2DM) mice, the susceptibility of female P-T2DM mice to DEHP-induced metabolic toxicity, and the underlying mechanisms were investigated. DEHP exposure exacerbated metabolic disorders in female P-T2DM mice. Factorial analysis showed that female P-T2DM mice were more sensitive to DEHP exposure than female normal mice and male P-T2DM mice. It was determined by integrated biomarker response results that female P-T2DM mice had higher risks of developing T2DM, metabolic disorders, cardiovascular events and hepatotoxicity than male P-T2DM mice. Moreover, hepatic transcriptome analysis emphasized the effects of DEHP on the expression of oxidative injury- and metabolic function-related genes. Western blotting indicated that DEHP activated Jun-N-terminal kinase (JNK) and impaired insulin sensitivity in the liver, which were the main causes of DEHP-exacerbated metabolic abnormalities in P-T2DM mice. Our study revealed that compared with normal mice and male P-T2DM mice, female P-T2DM mice tend to suffer from increased DEHP-induced metabolic toxicity, which was primarily attributed to hepatotoxicity.
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Affiliation(s)
- Yangyang Ding
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Tong Xu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Guanghua Mao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yao Chen
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China; Institute of Environmental health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xuchun Qiu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China; Institute of Environmental health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaoxiao Xu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Weiwei Feng
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China; Institute of Environmental health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu, China.
| | - Xiangyang Wu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China; Institute of Environmental health and Ecological Security, Jiangsu University, Zhenjiang, Jiangsu, China.
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20
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Wang X, Han B, Wu P, Li S, Lv Y, Lu J, Yang Q, Li J, Zhu Y, Zhang Z. Dibutyl phthalate induces allergic airway inflammation in rats via inhibition of the Nrf2/TSLP/JAK1 pathway. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115564. [PMID: 33254669 DOI: 10.1016/j.envpol.2020.115564] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/06/2020] [Accepted: 08/27/2020] [Indexed: 06/12/2023]
Abstract
Dibutyl phthalate (DBP), an important plastic contaminant in the environment, is known to cause organ toxicity. Although current research has shown that DBP-induced organ toxicity is associated with oxidative stress, the toxic effect of DBP on the lungs have not been fully elucidated. Therefore, we investigated the potential mechanism by which DBP induces pulmonary toxicity using a model of DBP-induced allergic airway inflammation in rats. The results showed that chronic exposure to DBP induced histopathological damage, inflammation, oxidative stress, apoptosis, and increased the protein levels of thymic stromal lymphopoietin (TSLP) and its downstream protein Janus kinase 1 (JAK1) and signal transducer and activator of transcription 6 (STAT6). Moreover, DBP exposure inhibited nuclear factor-erythroid-2-related factor 2 (Nrf2) and levels of its target genes NAD(P)H quinone oxidoreductase 1 (NQO1) and heme oxygenase-1 (HO-1). Additionally, using in vitro experiments, we found that DBP induced oxidative stress, reduced cell viability, and inhibited the Nrf2/HO-1/NQO1 pathway in mouse alveolar type II epithelial cell line. Overall, these data demonstrate that DBP induces allergic airway inflammation in rats via inhibition of the Nrf2/TSLP/JAK1 pathway.
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Affiliation(s)
- Xiaoqiao Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, 150030, China
| | - Bing Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Pengfei Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Yueying Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Jingjing Lu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Qingyue Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Jiayi Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Yan Zhu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, 150030, China.
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21
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Chen H, Chen K, Qiu X, Xu H, Mao G, Zhao T, Feng W, Okeke ES, Wu X, Yang L. The reproductive toxicity and potential mechanisms of combined exposure to dibutyl phthalate and diisobutyl phthalate in male zebrafish (Danio rerio). CHEMOSPHERE 2020; 258:127238. [PMID: 32563064 DOI: 10.1016/j.chemosphere.2020.127238] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
Dibutyl phthalate (DBP) and diisobutyl phthalate (DiBP) are phthalate compounds frequently detected in the environment. Despite increasing awareness of their toxicity in human and animals, the male reproductive toxicity of their combined exposure remains elusive. The purposes of this study were to investigate whether combined exposure to DBP and DiBP could induce male reproductive toxicity, and to explore the potential toxicological mechanisms. Adult male zebrafish were exposed to DBP (11, 113 and 1133 μg L-1), DiBP (10, 103 and 1038 μg L-1) and their mixtures (Mix) (11 + 10, 113 + 103, 1133 + 1038 μg L-1) for 30 days, and their effects on plasma hormone secretion, testis histology and transcriptomics were examined. Highest concentrations of Mix exposure caused greater imbalance ratio of T/E2 and more severe structural damage to testis than single exposure. These effects were consistent with the testis transcriptome analysis for which 4570 genes were differentially expressed in Mix exposure, while 2795 and 1613 genes were differentially expressed in DBP and DiBP, respectively. KEGG pathway analysis showed that both single and combined exposure of DBP and DiBP could affect cytokine-cytokine receptor interaction. The difference was that combined exposure could also affect steroid hormone synthesis, extracellular matrix receptor interaction, retinol metabolism, and PPAR signaling pathways. These results demonstrated that combined exposure to DBP and DiBP could disrupt spermatogenesis and elicit male reproductive toxicity in zebrafish.
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Affiliation(s)
- Hui Chen
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Kun Chen
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Xuchun Qiu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Hai Xu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Guanghua Mao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Ting Zhao
- School of the Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Weiwei Feng
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Emmanuel Sunday Okeke
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Xiangyang Wu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
| | - Liuqing Yang
- School of the Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
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22
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Erdem Guzel E, Kaya N, Tektemur A, Ulker N, Yardimci A, Akkoc RF, Canpolat S, Ozan IE. Chronic effects of maternal tobacco-smoke exposure and/or α-lipoic acid treatment on reproductive parameters in female rat offspring. Syst Biol Reprod Med 2020; 66:387-399. [PMID: 32951465 DOI: 10.1080/19396368.2020.1815248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Prenatal tobacco-smoke exposure negatively affects the reproductive functions of female offspring and oxidative stress plays a major role at this point. Alpha-lipoic acid (ALA), well known as a biological antioxidant, has been used as a nutritional supplement and as a therapeutic agent in the treatment of certain complications during pregnancy. We aimed to investigate the effects of maternal tobacco-smoke exposure and/or ALA administration on puberty onset, sexual behavior, gonadotrophin levels, apoptosis-related genes, apoptotic cell numbers and oxidative stress markers in the adult female rat offspring. Sprague-Dawley rats were divided into four groups; control, tobacco smoke (TS), TS+ALA and ALA groups. Animals were exposed to TS and/or ALA for 8 weeks before pregnancy and throughout pregnancy. All treatments ended with birth and later newborn female rats were selected for each experimental group. The experiment ended at postnatal day 74-77. Maternal tobacco smoke advanced the onset of puberty in the female offspring of the TS group (p < 0.05). In all treatment groups; the mean number of anogenital investigations and lordosis quality scores showed a decline, serum luteinizing hormone levels significantly increased (p < 0.05) and several histopathological changes in ovaries were observed compared to the control group. In addition, an increase in apoptotic marker levels and apoptotic cell numbers was detected in the ovaries of all treatment groups. Decreased TAS and increased TOS levels were detected in all treatment groups compared to control. These findings suggested that maternal tobacco smoke and/or ALA administration may be leading to the impaired reproductive health of female offspring. Abbreviations: ALA: alpha-lipoic acid; LH: luteinizing hormone; FSH: follicle-stimulating hormone; TAS: total antioxidant status; TOS: total oxidant status; Apaf1: apoptotic protease-activating factor 1; Casp3: caspase 3; Casp9: caspase 9; CF: cyst follicles; 4-HNE: 4-Hidroxynonenal; 8-OHdG: 8-hydroxydeoxyguanosine; TUNEL: terminal deoxynucleotidyl transferase-mediated deoxyuridine-biotin nick end labeling; ROS: reactive oxygen species; GnRHR: gonadotropin-releasing hormone receptor; HPG: hypothalamic-pituitary-gonadal; AMPK: AMP-activated protein kinase; ELISA: enzyme-linked immunosorbent assay; cDNA: complementary DNA; qPCR: quantitative real-time PCR; FC: follicular cysts; PF: primary follicle; SF: secondary follicle; GF: graafian follicle; CL: corpus luteum; DF: degenerated follicle; AF: atretic follicle.
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Affiliation(s)
- Elif Erdem Guzel
- Department of Midwifery, Faculty of Health Sciences, Mardin Artuklu University , Mardin, Turkey
| | - Nalan Kaya
- Department of Histology and Embryology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ahmet Tektemur
- Department of Medical Biology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Nazife Ulker
- Department of Physiology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ahmet Yardimci
- Department of Physiology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ramazan Fazil Akkoc
- Department of Anatomy, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Sinan Canpolat
- Department of Physiology, Faculty of Medicine, Firat University , Elazig, Turkey
| | - Ibrahim Enver Ozan
- Department of Histology and Embryology, Faculty of Medicine, Firat University , Elazig, Turkey
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23
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Effect of di-(2-ethylhexyl) phthalate (DEHP) on allergic rhinitis. Sci Rep 2020; 10:14625. [PMID: 32884073 PMCID: PMC7471965 DOI: 10.1038/s41598-020-71517-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 08/13/2020] [Indexed: 11/08/2022] Open
Abstract
Allergic rhinitis (AR) is a common chronic inflammatory disease of the upper respiratory tract. Di(2-ethylhexyl) phthalate (DEHP) is a widely used plasticizer and belongs to environmental endocrine disruptors (EDCs). It can be entered the human body which is harmful to health. The relationship between DEHP and AR is still inconclusive. This study aims to investigate the effect of environmental pollutants DEHP on AR. By examining DEHP metabolites in the urine of AR patients and building an AR model. 24 BALB/c mice were used as the study subjects, and ovalbumin (OVA) and DEHP (3 mg/kg/body) were used for intragastric administration. They were divided into control group, DEHP group, OVA group and OVA + DEHP group. Examination, behavioral scoring, inflammatory factor testing, oxidative stress testing, detection of aryl hydrocarbon receptor (AhR) and signaling pathways CYP1A1 and CYP1B1 related proteins and mRNA. The concentrations of 3 metabolites of DEHP (MEHHP, MEOHP, and MEHP) in urine of AR patients were higher. And HE-staining showed that for the control group, many chronic inflammatory cell infiltration and nasal mucosal destruction were observed in the OVA + DEHP group and were more severe than the OVA group. Allergic symptom scores were obtained from sneezing, scratching, number of scratching, and nose flow. The scores of the OVA group and the OVA + DEHP group were higher than 7 points. Serum ELISA and nasal mucosal oxidative stress tests are more serious in the OVA + DEHP group. The expression of AhR protein and its mRNA was increased in the DEHP group, OVA group and OVA + DEHP group. The OVA + DEHP group was more significant in the OVA group and DEHP group. And the mRNAs of the AhR-related signaling pathways CYP1A1 and CYP1B1 were also more prominent in the OVA + DEHP group. DEHP may aggravate its inflammatory response through the AhR pathway closely related to the environment. When combined with OVA, DEHP can further aggravate the OVA-induced nasal inflammatory response and make the nasal cavity have undergone severe changes, and many inflammatory cells have infiltrated. DEHP has shown an adjuvant effect, and the AhR-related signaling pathways CYP1A1 and CYP1B1 may be critical.
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24
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Tolouei S, da Silva GN, Curi TZ, Passoni MT, Ribeiro D, Meldola HG, Grechi N, Hey GS, Souza R, Dos Santos AC, Beltrame OC, Dalsenter PR, Martino-Andrade AJ, Gasparotto Junior A. Effects of Talinum paniculatum (Jacq.) Gaertn. leaf extract on general toxicity and pubertal development of rats. Hum Exp Toxicol 2020; 40:124-135. [PMID: 32762447 DOI: 10.1177/0960327120945756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Talinum paniculatum (Jacq.) Gaertn. (Talinaceae), popularly known as "major gomes," is a Brazilian Cerrado plant used in traditional medicine and as a food source. Recent studies have demonstrated its diuretic effects. However, no studies have been performed on its effects on the reproductive system. Therefore, we aimed to investigate the effects of the ethanol-soluble fraction of T. paniculatum leaves (ESTP) on general toxicity and on the pubertal development of male and female Wistar rats. For this purpose, the uterotrophic and the pubertal assays were performed. In the uterotrophic test, female immature rats were treated for three consecutive days with 30, 100, or 300 mg/kg of ESTP. Uterus without luminal fluid was weighed and the relative weight calculated. For the pubertal assay, male and female immature rats were submitted to 30-day treatment with 30 or 300 mg/kg of ESTP. Clinical signs of toxicity, biochemical, and histopathological parameters were evaluated. ESTP treatment did not promote estrogenic effects in female rats. In the pubertal test, no daily signs of toxicity or weight loss were observed. Moreover, ESTP did not affect the onset of vaginal opening and preputial separation and did not cause significant changes in biochemical parameters as well as in organ weight and histopathological analyses of animals.
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Affiliation(s)
- Sel Tolouei
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil.,National Center for Natural Products Research, University of Mississippi, Oxford, MS, USA
| | - G N da Silva
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - T Z Curi
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - M T Passoni
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - Dck Ribeiro
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - H G Meldola
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - N Grechi
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - G S Hey
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - Ric Souza
- Histology Laboratory, Faculty of Health Sciences, 186079Federal University of Grande Dourados, Dourados, MS, Brazil
| | - A C Dos Santos
- Histology Laboratory, Faculty of Health Sciences, 186079Federal University of Grande Dourados, Dourados, MS, Brazil
| | - O C Beltrame
- Department of Veterinary Medicine and Erasto Gaertner Hospital-LAC, 28122Federal University of Paraná, Curitiba, PR, Brazil
| | - P R Dalsenter
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil
| | - A J Martino-Andrade
- Laboratory of Reproductive Toxicology, Department of Pharmacology, 186079Federal University of Paraná, Curitiba, PR, Brazil.,Animal Endocrine and Reproductive Physiology Laboratory, 28122Federal University of Paraná, Curitiba, PR, Brazil
| | - A Gasparotto Junior
- Laboratory of Electrophysiology and Cardiovascular Pharmacology, Faculty of Health Sciences, 186079Federal University of Grande Dourados, Dourados, MS, Brazil
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Zhang J, Powell CA, Kay MK, Park MH, Meruvu S, Sonkar R, Choudhury M. A moderate physiological dose of benzyl butyl phthalate exacerbates the high fat diet-induced diabesity in male mice. Toxicol Res (Camb) 2020; 9:353-370. [PMID: 32905190 DOI: 10.1093/toxres/tfaa037] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/01/2020] [Accepted: 05/19/2020] [Indexed: 12/28/2022] Open
Abstract
Exposure to endocrine disrupting chemicals (EDCs) used in plastic manufacturing processes may be contributing to the current increase in metabolic disorders. Here, we determined that benzyl butyl phthalate (BBP), a common EDC and food packaging plasticizer, mixed into chow diet (CD) and high fat diets (HFD) at varying concentrations (4 μg/kg body weight (bw)/day, 169 μg/kg bw/day, 3 mg/kg bw/day, 50 mg/kg bw/day) produced a number of detrimental and sex-specific metabolic effects in C57BL/6 male and female mice after 16 weeks. Male mice exposed to moderate (3 mg/kg bw/day) concentrations of BBP in an HFD were especially affected, with significant increases in body weight due to significant increases in weight of liver and adipose tissue. Other doses did not show any significant changes when compared to only CD or HFD alone. HFD in the presence of 3 mg/kg bw/day BBP showed significant increases in fasting blood glucose, glucose intolerance, and insulin intolerance when compared to HFD alone. Furthermore, this group significantly alters transcriptional regulators involved in hepatic lipid synthesis and its downstream pathway. Interestingly, most of the BBP doses had no phenotypic effect when mixed with CD and compared to CD alone. The female mice did not show a similar response as the male population even though they consumed a similar amount of food. Overall, these data establish a dose which can be used for a BBP-induced metabolic research model and suggest that a moderate dosage level of EDC exposure can contribute to widely ranging metabolic effects.
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Affiliation(s)
- Jian Zhang
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, 312 REYN, MS 1114, College Station, TX 77843, USA
| | - Catherine A Powell
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, 312 REYN, MS 1114, College Station, TX 77843, USA
| | - Matthew K Kay
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, 312 REYN, MS 1114, College Station, TX 77843, USA
| | - Min Hi Park
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, 312 REYN, MS 1114, College Station, TX 77843, USA
| | - Sunitha Meruvu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, 312 REYN, MS 1114, College Station, TX 77843, USA
| | - Ravi Sonkar
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, 312 REYN, MS 1114, College Station, TX 77843, USA
| | - Mahua Choudhury
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, 312 REYN, MS 1114, College Station, TX 77843, USA
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