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Ashour H, Gamal SM, Sadek NB, Rashed LA, Hussein RE, Kamar SS, Ateyya H, Mehesen MN, ShamsEldeen AM. Vitamin D Supplementation Improves Uterine Receptivity in a Rat Model of Vitamin D Deficiency: A Possible Role of HOXA-10/FKBP52 Axis. Front Physiol 2021; 12:744548. [PMID: 34899377 PMCID: PMC8655728 DOI: 10.3389/fphys.2021.744548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/21/2021] [Indexed: 12/03/2022] Open
Abstract
Synchronized uterine receptivity with the time of implantation is crucial for pregnancy continuity. Vitamin D (VD) deficiency has been linked to the failure of implantation. Therefore, we tested the link between the Homeobox transcription factor-10/immunophilin FK506-binding protein 52 (HOXA-10/FKBP52) axis and the uterine receptivity in VD-deficient rats. The effect of VD supplementation at different doses was also investigated. Forty-eight pregnant rats were divided into six groups (eight/group); normal control rats fed with standard chow (control), control rats supplemented with VD (equivalent dose of 400 IU/day) (control-D400). VD-deficient group (DEF) and the three VD deficiency groups with VD supplementation were equivalent to 400, 4,000, and 10,000 IU/day (DEF-D400, DEF-D4000, and DEF-D10000, respectively). The expression levels of HOXA-10/FKBP52, progesterone level, and histological evaluation of decidualization using osteopontin (OSN) and progesterone receptor (PGR) were estimated. An assessment of the uterine contractility was conducted for all rats. This study showed the downregulation of HOXA-10/FKBP52 together with increased amplitude and frequency of the uterine contractility in the DEF group compared to control. VD dose-dependent supplementation restored progesterone/receptor competency, upregulated the expressional response of HOXA-10 and its downstream FKBP52, and improved uterine receptivity and endometrial decidualization at the time of implantation that was documented by increased area% of OSN and the number of implantation beads.
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Affiliation(s)
- Hend Ashour
- Department of Physiology, Faculty of Medicine, King Khalid University, Abha, Saudi Arabia
- Department of Physiology, Kasralainy Faculty of Medicine, Cairo University, Giza, Egypt
| | - Sara Mahmoud Gamal
- Department of Physiology, Kasralainy Faculty of Medicine, Cairo University, Giza, Egypt
| | - Nermeen Bakr Sadek
- Department of Physiology, Kasralainy Faculty of Medicine, Cairo University, Giza, Egypt
| | - Laila Ahmed Rashed
- Department of Biochemistry and Molecular Biology, Kasralainy Faculty of Medicine, Cairo University, Giza, Egypt
| | - Rania Elsayed Hussein
- Department of Biochemistry and Molecular Biology, Kasralainy Faculty of Medicine, Cairo University, Giza, Egypt
| | - Samaa Samir Kamar
- Department of Histology and Cell Biology, Kasralainy Faculty of Medicine, Cairo University, Giza, Egypt
- Armed Forces College of Medicine, Cairo, Egypt
| | - Hayam Ateyya
- Department of Pharmacy Practice and Clinical Pharmacy, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
- Department of Medical Pharmacology, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Marwa Nagi Mehesen
- Department of Medical Pharmacology, Faculty of Medicine, Cairo University, Giza, Egypt
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Milesi MM, Lorenz V, Durando M, Rossetti MF, Varayoud J. Glyphosate Herbicide: Reproductive Outcomes and Multigenerational Effects. Front Endocrinol (Lausanne) 2021; 12:672532. [PMID: 34305812 PMCID: PMC8293380 DOI: 10.3389/fendo.2021.672532] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/14/2021] [Indexed: 12/20/2022] Open
Abstract
Glyphosate base herbicides (GBHs) are the most widely applied pesticides in the world and are mainly used in association with GBH-tolerant crop varieties. Indiscriminate and negligent use of GBHs has promoted the emergence of glyphosate resistant weeds, and consequently the rise in the use of these herbicides. Glyphosate, the active ingredient of all GBHs, is combined with other chemicals known as co-formulants that enhance the herbicide action. Nowadays, the safety of glyphosate and its formulations remain to be a controversial issue, as evidence is not conclusive whether the adverse effects are caused by GBH or glyphosate, and little is known about the contribution of co-formulants to the toxicity of herbicides. Currently, alarmingly increased levels of glyphosate have been detected in different environmental matrixes and in foodstuff, becoming an issue of social concern. Some in vitro and in vivo studies have shown that glyphosate and its formulations exhibit estrogen-like properties, and growing evidence has indicated they may disrupt normal endocrine function, with adverse consequences for reproductive health. Moreover, multigenerational effects have been reported and epigenetic mechanisms have been proved to be involved in the alterations induced by the herbicide. In this review, we provide an overview of: i) the routes and levels of human exposure to GBHs, ii) the potential estrogenic effects of glyphosate and GBHs in cell culture and animal models, iii) their long-term effects on female fertility and mechanisms of action, and iv) the consequences on health of successive generations.
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Affiliation(s)
- María Mercedes Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - Virginia Lorenz
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Milena Durando
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - María Florencia Rossetti
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
- Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
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Effects of Endocrine-Disrupting Chemicals on Endometrial Receptivity and Embryo Implantation: A Systematic Review of 34 Mouse Model Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18136840. [PMID: 34202247 PMCID: PMC8297133 DOI: 10.3390/ijerph18136840] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/17/2021] [Accepted: 06/23/2021] [Indexed: 01/23/2023]
Abstract
Several available studies have already analyzed the systemic effects of endocrine-disrupting chemicals (EDCs) on fertile woman and neonatal outcomes, but little is still known in humans about the precise mechanisms of interference of these compounds with the endometrial receptivity. There is consistent evidence that continuous and prolonged exposure to EDCs is a risk factor for reduced fertility and fecundity in women. Preliminary studies on mammalian models provide robust evidence about this issue and could help gynecologists worldwide to prevent long term injury caused by EDCs on human fertility. In this systematic review, we aimed to systematically summarize all available data about EDC effects on blastocyst endometrial implantation. We performed a systematic review using PubMed®/MEDLINE® to summarize all in vivo studies, carried out on mice models, analyzing the molecular consequences of the prolonged exposure of EDC on the implantation process. 34 studies carried out on mouse models were included. Primary effects of EDC were a reduction of the number of implantation sites and pregnancy rates, particularly after BPA and phthalate exposure. Furthermore, the endometrial expression of estrogen (ER) and progesterone receptors (PR), as well as their activation pathways, is compromised after EDC exposure. Finally, the expression of the primary endometrial markers of receptivity (such as MUC1, HOXA10, Inn and E-cadherin) after EDC contact was analyzed. In conclusion EDC deeply affect blastocyst implantation in mouse model. Several players of the implantation mechanism are strongly influenced by the exposure to different categories of EDC.
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Stone J, Sutrave P, Gascoigne E, Givens MB, Fry RC, Manuck TA. Exposure to toxic metals and per- and polyfluoroalkyl substances and the risk of preeclampsia and preterm birth in the United States: a review. Am J Obstet Gynecol MFM 2021; 3:100308. [PMID: 33444805 PMCID: PMC8144061 DOI: 10.1016/j.ajogmf.2021.100308] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/04/2021] [Accepted: 01/04/2021] [Indexed: 01/09/2023]
Abstract
Preeclampsia and preterm birth are among the most common pregnancy complications and are the leading causes of maternal and fetal morbidity and mortality in the United States. Adverse pregnancy outcomes are multifactorial in nature and increasing evidence suggests that the pathophysiology behind preterm birth and preeclampsia may be similar-specifically, both of these disorders may involve abnormalities in placental vasculature. A growing body of literature supports that exposure to environmental contaminants in the air, water, soil, and consumer and household products serves as a key factor influencing the development of adverse pregnancy outcomes. In pregnant women, toxic metals have been detected in urine, peripheral blood, nail clippings, and amniotic fluid. The placenta serves as a "gatekeeper" between maternal and fetal exposures, because it can reduce or enhance fetal exposure to various toxicants. Proposed mechanisms underlying toxicant-mediated damage include disrupted placental vasculogenesis, an up-regulated proinflammatory state, oxidative stressors contributing to prostaglandin production and consequent cervical ripening, uterine contractions, and ruptured membranes and epigenetic changes that contribute to disrupted regulation of endocrine and immune system signaling. The objective of this review is to provide an overview of studies examining the relationships between environmental contaminants in the US setting, specifically inorganic (eg, cadmium, arsenic, lead, and mercury) and organic (eg, per- and polyfluoroalkyl substances) toxicants, and the development of preeclampsia and preterm birth among women in the United States.
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Affiliation(s)
- Juliana Stone
- Division of Maternal-Fetal Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Pragna Sutrave
- Division of Maternal-Fetal Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Emily Gascoigne
- Division of Maternal-Fetal Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Matthew B Givens
- Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Rebecca C Fry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC; Institute for Environmental Health Solutions, Chapel Hill, NC
| | - Tracy A Manuck
- Division of Maternal-Fetal Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC; Institute for Environmental Health Solutions, Chapel Hill, NC.
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Alarcón R, Rivera OE, Ingaramo PI, Tschopp MV, Dioguardi GH, Milesi MM, Muñoz-de-Toro M, Luque EH. Neonatal exposure to a glyphosate-based herbicide alters the uterine differentiation of prepubertal ewe lambs. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114874. [PMID: 32599332 DOI: 10.1016/j.envpol.2020.114874] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/30/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
The exposure to endocrine-disrupting compounds (EDCs), such as glyphosate-based herbicides (GBHs), during early life might alter female fertility. The aim of the present study was to evaluate the effects of neonatal exposure to a GBH on sheep uterine development. To achieve this, Friesian ewe lambs were exposed to GBH (2 mg/kg of body weight/day; n = 12) or vehicle (controls; n = 10) through s.c. injections, from postnatal day (PND) 1 to PND14; on PND45, the uteri were obtained to evaluate histomorphological and molecular parameters. Morphological parameters were determined by picrosirius-hematoxylin staining. Protein expression of Ki67 (as a cell proliferation marker), p27, and molecules involved in uterine organogenetic differentiation was measured by immunohistochemistry. We also determined the mRNA expression of the IGF molecular pathway by RT-PCR. Although histomorphology was not modified, the uteri of GBH-exposed ewe lambs showed lower cell proliferation, together with higher p27 protein expression. In addition, the uteri of GBH-exposed ewe lambs showed increased gene expression of insulin-like growth factor binding protein 3 (IGFBP-3), decreased expression of ERα in the luminal (LE) and glandular (GE) epithelia and in the subepithelial stroma (SS), and lower PR expression in the LE but higher in the GE and SS. In addition, GBH treatment decreased the uterine expression of Wnt5a in the GE, of Wnt7a in the SS, of β-catenin in the LE and GE, of Hoxa10 in the SS, and of Foxa2 in the GE as compared with controls. In conclusion, neonatal exposure to GBH decreased cell proliferation and altered the expression of molecules that control proliferation and development in the uterus. All these changes might have adverse consequences on uterine differentiation and functionality, affecting the female reproductive health of sheep. GBH may be responsible for uterine subfertility, acting as an EDC.
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Affiliation(s)
- Ramiro Alarcón
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Oscar E Rivera
- Instituto de Investigación sobre Producción Agropecuaria, Ambiente y Salud (IIPAAS), Facultad de Ciencias Agrarias, Universidad Nacional de Lomas de Zamora, Buenos Aires, Argentina
| | - Paola I Ingaramo
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María V Tschopp
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Gisela H Dioguardi
- Instituto de Investigación sobre Producción Agropecuaria, Ambiente y Salud (IIPAAS), Facultad de Ciencias Agrarias, Universidad Nacional de Lomas de Zamora, Buenos Aires, Argentina
| | - Mercedes M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Mónica Muñoz-de-Toro
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional del Litoral, Santa Fe, Argentina.
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Lorenz V, Pacini G, Luque EH, Varayoud J, Milesi MM. Perinatal exposure to glyphosate or a glyphosate-based formulation disrupts hormonal and uterine milieu during the receptive state in rats. Food Chem Toxicol 2020; 143:111560. [PMID: 32640336 DOI: 10.1016/j.fct.2020.111560] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 12/18/2022]
Abstract
We investigated the effects of perinatal exposure to a glyphosate-based herbicide (GBH) or glyphosate alone (Gly) on female fertility and the hormonal and uterine milieu during the preimplantation period. F0 pregnant rats orally received a GBH or Gly in a dose of 2 mg of glyphosate/kg/day from gestational day (GD) 9 until weaning. F1 females were evaluated to determine the reproductive performance on GD19; and the sex steroid serum levels, the expression of estrogen receptor alpha (ERα), progesterone receptor (PR) and implantation-related genes on GD5 (preimplantation period). GBH and Gly induced preimplantation losses in F1 rats. GBH and Gly groups exhibited higher 17β-estradiol serum levels, without changes in progesterone. Both compounds increased the uterine ERα protein expression, with no differences at transcript level; and only Gly decreased PR mRNA expression. Also, GBH and Gly downregulated Hoxa10 and Lif genes, with no difference in Muc1 and Areg expression. To conclude, perinatal exposure to a GBH or Gly disrupted critical hormonal and uterine molecular targets during the receptive state, possibly associated with the implantation failures. Overall, similar results were found in GBH- and Gly-exposed rats, suggesting that the active principle might be the main responsible for the deleterious effects.
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Affiliation(s)
- Virginia Lorenz
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Guillermina Pacini
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina.
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Milesi MM, Durando M, Lorenz V, Gastiazoro MP, Varayoud J. Postnatal exposure to endosulfan affects uterine development and fertility. Mol Cell Endocrinol 2020; 511:110855. [PMID: 32437785 DOI: 10.1016/j.mce.2020.110855] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 03/30/2020] [Accepted: 04/29/2020] [Indexed: 12/16/2022]
Abstract
Endosulfan is an organochlorine pesticide (OCP) used in large-scale agriculture for controlling a variety of insects and mites that attack food and non-food crops. Although endosulfan has been listed in the Stockholm Convention as a persistent organic pollutant to be worldwide banned, it is still in use in some countries. Like other OCPs, endosulfan is bioaccumulative, toxic and persistent in the environment. Human unintentional exposure may occur through air inhalation, dietary, skin contact, as well as, via transplacental route and breast feeding. Due to its lipophilic nature, endosulfan is rapidly absorbed into the gastrointestinal tract and bioaccumulates in the fatty tissues. Similar to other OCPs, endosulfan has been classified as an endocrine disrupting chemical (EDC). Endocrine action of endosulfan on development and reproductive function of males has been extensively discussed; however, endosulfan effects on the female reproductive tract have received less attention. This review provides an overview of: i) the fate and levels of endosulfan in the environment and human population, ii) the potential estrogenic properties of endosulfan in vitro and in vivo, iii) its effects on uterine development, and iv) the long-term effects on female fertility and uterine functional differentiation during early gestation.
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Affiliation(s)
- M M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina.
| | - M Durando
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - V Lorenz
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina
| | - M P Gastiazoro
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
| | - J Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina
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Chen M, Guo J, Ruan J, Yang Z, He C, Zuo Z. Neonatal exposure to environment-relevant levels of tributyltin leads to uterine dysplasia in rats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137615. [PMID: 32325588 DOI: 10.1016/j.scitotenv.2020.137615] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/26/2020] [Accepted: 02/26/2020] [Indexed: 05/12/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) are natural/synthetic compounds that mimic or inhibit the biological actions of endogenous hormones. Studies have revealed that environmental estrogen, such as bisphenol A (BPA), causes developmental defects in the uterus. Tributyltin (TBT) is a typical environmental androgen. In this study, we aimed to explore the effect and mechanism of TBT on uterine development. Neonatal female rats were exposed to TBT (10 and 100 ng/kg bw) from postnatal days 1 to 16. BPA (50 μg/kg bw) was used as a positive control. Neonatal exposure to environmental concentrations of TBT resulted in pathological changes in the uterus, including thickening of the uterine luminal epithelium, a low density of glands, endometrial inflammation and fibrosis. Further, TBT affected the Wnt signaling pathway, which might mediate developmental disorders of the endometrial epithelial cells and glands in the uterus. TBT exposure also activated the NF-κB signaling pathway, which triggered inflammation. Moreover, TBT exposure upregulated the TGF-β/Smads signaling pathway, possibly leading to endometrial fibrosis. In summary, our results demonstrate that neonatal exposure to an environment-relevant level of TBT leads to uterine dysplasia and provide potential molecular mechanisms. Our study is helpful for clarifying the effects of environmental androgens on the female reproduction system.
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Affiliation(s)
- Mingyue Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China
| | - Jiaojiao Guo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China
| | - Jinpeng Ruan
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China
| | - Zhibing Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China
| | - Chengyong He
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, China; Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, China.
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Environmental Exposures and Adverse Pregnancy-Related Outcomes. HEALTH IMPACTS OF DEVELOPMENTAL EXPOSURE TO ENVIRONMENTAL CHEMICALS 2020. [DOI: 10.1007/978-981-15-0520-1_2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Ingaramo PI, Guerrero Schimpf M, Milesi MM, Luque EH, Varayoud J. Acute uterine effects and long-term reproductive alterations in postnatally exposed female rats to a mixture of commercial formulations of endosulfan and glyphosate. Food Chem Toxicol 2019; 134:110832. [PMID: 31550491 DOI: 10.1016/j.fct.2019.110832] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/17/2019] [Accepted: 09/20/2019] [Indexed: 01/23/2023]
Abstract
Endosulfan and glyphosate are widely used pesticides and have been associated to reproductive disorders. We examine the acute and long-term effects of postnatal exposure to commercial formulations of endosulfan (EF), glyphosate (glyphosate-based herbicide, GBH) and a mixture of both pesticides (MIX). After birth, female pups of Wistar rats received saline solution (CONTROL), EF (600 μg/kg of b.w/day), GBH (2 mg/kg of b.w/day) or a mixture (at the same doses) from postnatal day (PND) 1 to PND7. The uterine histology and expression of Hoxa10, estrogen (ERα) and progesterone (PR) receptors were evaluated on PND8. Reproductive performance was evaluated on gestational day 19. GBH and MIX rats showed an increment of 1) the incidence of luminal epithelial hyperplasia, 2) PR and Hoxa10 expression. EF modified ERα and Hoxa10 expression. During adulthood, MIX and GBH rats showed higher post-implantation losses while EF alone produced an increase of pre-implantation losses. We showed that the co-administration of both pesticides produced acute uterine effects and long-term deleterious reproductive effects that were similar to those induced by GBH alone. We consider important to highlight the necessity to evaluate the commercial pesticide mixture as a more representative model of human exposure to a high number of pesticides.
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Affiliation(s)
- Paola I Ingaramo
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional Del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina.
| | - Marlise Guerrero Schimpf
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional Del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
| | - María M Milesi
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional Del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional Del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional Del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
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11
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Alarcón R, Varayoud J, Luque EH, Milesi MM. Effect of neonatal exposure to endosulfan on myometrial adaptation during early pregnancy and labor in rats. Mol Cell Endocrinol 2019; 491:110435. [PMID: 31029737 DOI: 10.1016/j.mce.2019.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/13/2019] [Accepted: 04/22/2019] [Indexed: 12/28/2022]
Abstract
Proper myometrial adaptation during gestation is crucial for embryo implantation, pregnancy maintenance and parturition. Previously, we reported that neonatal exposure to endosulfan alters uterine development and induces implantation failures. The present work investigates the effects of endosulfan exposure on myometrial differentiation at the pre-implantation period, and myometrial activation during labor. Newborn female rats were s.c. injected with corn oil (vehicle) or 600 μg/kg/day of endosulfan (Endo600) on postnatal days (PND) 1, 3, 5 and 7. On PND90, the rats were mated to evaluate: i) the myometrial differentiation on gestational day 5 (GD5, pre-implantation period), by assessment myometrial histomorphology, smooth muscle cells (SMCs) proliferation, and expression of proteins involved in myometrial adaptation for embryo implantation (steroid receptors, Wnt7a and Hoxa10); ii) the timing of parturition and myometrial activation during labor by determining the uterine expression of contraction-associated genes (oxytocin receptor, OTXR; prostaglandin F2α receptor, PTGFR and connexin-43, Cx-43). Endosulfan decreased the thickness of both myometrial layers, with a concomitant decrease in the collagen remodeling. Blood vessels relative area in the interstitial connective tissue between muscle layers was also decreased. Endo600 group showed lower myometrial proliferation in association with a downregulation of Wnt7a and Hoxa10. Although in all females labor occurred on GD23, the exposure to endosulfan altered the timing of parturition, by inducing advancement in the initiation of labor. This alteration was associated with an increased uterine expression of OTXR, PTGFR and Cx-43. In conclusion, neonatal exposure to endosulfan produced long-term effects affecting myometrial adaptation during early pregnancy and labor. These alterations could be associated with the aberrant effects of endosulfan on the implantation process and the timing of parturition.
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Affiliation(s)
- Ramiro Alarcón
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina.
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12
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Demacopulo B, Kreimann EL. Bisphenol S increases EZRIN expression and the detrimental effects induced by dehydroepiandrosterone in rat endometrium. Mol Cell Endocrinol 2019; 483:64-73. [PMID: 30654004 DOI: 10.1016/j.mce.2019.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/09/2019] [Accepted: 01/09/2019] [Indexed: 12/11/2022]
Abstract
The use of Bisphenol S (BPS) was proposed as an alternative to Bisphenol A (BPA), a chemical employed in the production of polycarbonate plastics and epoxy resins. BPA is a xenoestrogen that affects normal physiology in several species. It was reported that BPS may also act as a xenoestrogen with harmful effects in the reproductive system. Here we studied the effects of BPS during the induction of a polycystic ovarian syndrome (PCOS)-like condition in rats. Animals were injected daily with vehicle, DHEA 60 mg/kg, BPS 1 μg/kg and DHEA-BPS, for 20 days. Cell apoptosis, cell proliferation, and EZRIN expression were analyzed by immunohistochemistry. We found an increase in PCNA expression, which correlates with cytoplasmic accumulation of the polarization marker, EZRIN, in the BPS treated groups. Additionally, the administration of BPS in the DHEA treated group augmented the stratification and number of "intraepithelial lumina" in the endometrial surface epithelium.
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Affiliation(s)
- Brenda Demacopulo
- National Atomic Energy Commission of Argentina (CNEA), National Research Council of Argentina (CONICET), Department of Radiobiology, Av. General Paz 1499 (1650), San Martín, Buenos Aires, Argentina
| | - Erica L Kreimann
- National Atomic Energy Commission of Argentina (CNEA), National Research Council of Argentina (CONICET), Department of Radiobiology, Av. General Paz 1499 (1650), San Martín, Buenos Aires, Argentina.
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13
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Guerrero Schimpf M, Milesi MM, Luque EH, Varayoud J. Glyphosate-based herbicide enhances the uterine sensitivity to estradiol in rats. J Endocrinol 2018; 239:197-213. [PMID: 30121576 DOI: 10.1530/joe-18-0207] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 08/03/2018] [Accepted: 08/14/2018] [Indexed: 12/29/2022]
Abstract
In a previous work, we detected that postnatal exposure to a glyphosate-based herbicide (GBH) alters uterine development in prepubertal rats causing endometrial hyperplasia and increasing cell proliferation. Our goal was to determine whether exposure to low dose of a GBH during postnatal development might enhance the sensitivity of the uterus to an estrogenic treatment. Female Wistar pups were subcutaneously injected with saline solution (control) or GBH using the reference dose (2 mg/kg/day, EPA) on postnatal days (PND) 1, 3, 5 and 7. At weaning (PND21), female rats were bilaterally ovariectomized and treated with silastic capsules containing 17β-estradiol (E2, 1 mg/mL) until they were 2 months of age. On PND60, uterine samples were removed and processed for histology, immunohistochemistry and mRNA extraction to evaluate: (i) uterine morphology, (ii) uterine cell proliferation by the detection of Ki67, (iii) the expression of the estrogen receptors alpha (ESR1) and beta (ESR2) and (iv) the expression of WNT7A and CTNNB1. GBH-exposed animals showed increased luminal epithelial height and stromal nuclei density. The luminal and glandular epithelium were markedly hyperplastic in 43% of GBH-exposed animals. GBH exposure caused an increase in E2-induced cell proliferation in association with an induction of both ESR1 and ESR2. GBH treatment decreased membranous and cytoplasmic expression of CTNNB1 in luminal and glandular epithelial cells and increased WNT7A expression in the luminal epithelium. These results suggest that early postnatal exposure to a GBH enhances the sensitivity of the rat uterus to estradiol and induces histomorphological and molecular changes associated with uterine hyperplasia.
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Affiliation(s)
- Marlise Guerrero Schimpf
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL, UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
- Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
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14
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Milesi MM, Lorenz V, Pacini G, Repetti MR, Demonte LD, Varayoud J, Luque EH. Perinatal exposure to a glyphosate-based herbicide impairs female reproductive outcomes and induces second-generation adverse effects in Wistar rats. Arch Toxicol 2018; 92:2629-2643. [PMID: 29947892 DOI: 10.1007/s00204-018-2236-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 06/04/2018] [Indexed: 12/18/2022]
Abstract
Glyphosate-based herbicides (GBHs) are the most globally used herbicides raising the risk of environmental exposition. Here, we investigated whether perinatal exposure to low doses of a GBH alters the female reproductive performance, and/or induced second-generation effects related to congenital anomalies or growth alterations. Pregnant rats (F0) received a GBH through food, in a dose of 2 mg (GBH-LD: GBH-low dose group) or 200 mg (GBH-HD: GBH-high dose group) of glyphosate/kg bw/day from gestational day (GD) 9 until weaning. Body weight gain and vaginal canal-opening of F1 females were recorded. Sexually mature F1 females were mated to evaluate their reproductive performance by assessing the pregnancy rate, and on GD19, the number of corpora lutea, the implantation sites (IS) and resorption sites. To analyze second-generation effects on F2 offspring, we analyzed the fetal morphology on GD19, and assessed the fetal length and weight, and the placental weight. GBH exposure neither altered the body weight gain of F1 females, nor vaginal opening onset. Although all GBH-exposed F1 rats became pregnant, a lower number of IS was detected. F2 offspring from both GBH groups showed delayed growth, evidenced by lower fetal weight and length, associated with a higher incidence of small for gestational age fetuses. In addition, higher placental weight and placental index were found in F2 offspring from GBH-HD dams. Surprisingly, structural congenital anomalies (conjoined fetuses and abnormally developed limbs) were detected in the F2 offspring from GBH-HD group. In conclusion, perinatal exposure to low doses of a GBH impaired female reproductive performance and induced fetal growth retardation and structural congenital anomalies in F2 offspring.
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Affiliation(s)
- María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina.
| | - Virginia Lorenz
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina
| | - Guillermina Pacini
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina
| | - María R Repetti
- Programa de Investigación y Análisis de Residuos y Contaminantes Químicos (PRINARC), Facultad de Ingeniería Química, UNL, Santa Fe, Argentina
| | - Luisina D Demonte
- Programa de Investigación y Análisis de Residuos y Contaminantes Químicos (PRINARC), Facultad de Ingeniería Química, UNL, Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (UNL)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 242, 3000, Santa Fe, Argentina
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15
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Müller JE, Meyer N, Santamaria CG, Schumacher A, Luque EH, Zenclussen ML, Rodriguez HA, Zenclussen AC. Bisphenol A exposure during early pregnancy impairs uterine spiral artery remodeling and provokes intrauterine growth restriction in mice. Sci Rep 2018; 8:9196. [PMID: 29907759 PMCID: PMC6003928 DOI: 10.1038/s41598-018-27575-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/05/2018] [Indexed: 01/19/2023] Open
Abstract
Endocrine disrupting chemicals are long suspected to impair reproductive health. Bisphenol A (BPA) has estrogenic activity and therefore the capacity of interfering with endocrine pathways. No studies dissected its short-term effects on pregnancy and possible underlying mechanisms. Here, we studied how BPA exposure around implantation affects pregnancy, particularly concentrating on placentation and uterine remodeling. We exposed pregnant female mice to 50 µg/kg BPA/day or 0.1% ethanol by oral gavage from day 1 to 7 of gestation. High frequency ultrasound was employed to document the presence and size of implantations, placentas and fetuses throughout pregnancy. Blood velocity in the arteria uterina was analyzed by Doppler measurements. The progeny of mothers exposed to BPA was growth-restricted compared to the controls; this was evident in vivo as early as at day 12 as analyzed by ultrasound and confirmed by diminished fetal and placenta weights observed after sacrificing the animals at day 14 of gestation. The remodeling of uterine spiral arteries (SAs) was considerably impaired. We show that short-term exposure to a so-called "safe" BPA dose around implantation has severe consequences. The intrauterine growth restriction observed in more than half of the fetuses from BPA-treated mothers may owe to the direct negative effect of BPA on the remodeling of uterine SAs that limits the blood supply to the fetus. Our work reveals unsuspected short-term effects of BPA on pregnancy and urges to more studies dissecting the mechanisms behind the negative actions of BPA during early pregnancy.
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Affiliation(s)
- Judith Elisabeth Müller
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Nicole Meyer
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Clarisa Guillermina Santamaria
- Universidad Nacional del Litoral, Facultad de Bioquímica y Cs. Biológicas, Instituto de Salud y Am biente del Litoral, UNL-CONICET, Santa Fe, Argentina
| | - Anne Schumacher
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Enrique Hugo Luque
- Universidad Nacional del Litoral, Facultad de Bioquímica y Cs. Biológicas, Instituto de Salud y Am biente del Litoral, UNL-CONICET, Santa Fe, Argentina
| | - Maria Laura Zenclussen
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany.,Universidad Nacional del Litoral, Facultad de Bioquímica y Cs. Biológicas, Instituto de Salud y Am biente del Litoral, UNL-CONICET, Santa Fe, Argentina
| | - Horacio Adolfo Rodriguez
- Universidad Nacional del Litoral, Facultad de Bioquímica y Cs. Biológicas, Instituto de Salud y Am biente del Litoral, UNL-CONICET, Santa Fe, Argentina
| | - Ana Claudia Zenclussen
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany.
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16
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Milesi MM, Varayoud J, Ramos JG, Luque EH. Uterine ERα epigenetic modifications are induced by the endocrine disruptor endosulfan in female rats with impaired fertility. Mol Cell Endocrinol 2017; 454:1-11. [PMID: 28559116 DOI: 10.1016/j.mce.2017.05.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/24/2017] [Accepted: 05/24/2017] [Indexed: 01/30/2023]
Abstract
High ERα activity may disrupt the window of uterine receptivity, causing defective implantation. We investigated whether implantation failures prompted by endosulfan are associated with aberrant ERα uterine expression and DNA methylation status during the pre-implantation period. ERα-dependent target genes that play a crucial role in the uterine receptivity for embryo attachment and implantation were also investigated. Newborn female rats received corn oil (vehicle, Control), 6 μg/kg/d of endosulfan (Endo6) or 600 μg/kg/d of endosulfan (Endo600) on postnatal days (PND) 1, 3, 5, and 7. On PND90, females were made pregnant and on gestational day 5 (GD5, pre-implantation period) uterine samples were collected. ERα expression was assessed at protein and mRNA levels by immunohistochemistry and real time RT-PCR, respectively. ERα transcript variants mRNA containing alternative 5'-untranslated regions (5'UTRs) were also evaluated. We searched for predicted transcription factors binding sites in ERα regulatory regions and assessed their methylation status by Methylation-Sensitive Restriction Enzymes-PCR technique (MSRE-PCR). The expression of the ERα-dependent uterine target genes, i.e. mucin-1 (MUC-1), insulin-like growth factor-1 (IGF-1), and leukemia inhibitory factor (LIF), was assessed by real time RT-PCR. Both doses of endosulfan increased the expression of ERα and its transcript variants ERα-OS, ERα-O, ERα-OT and ERα-E1. Moreover, a decreased DNA methylation levels were detected in some ERα regulatory regions, suggesting an epigenetic up-regulation of it transcription. ERα overexpression was associated with an induction of its downstream genes, MUC-1 and IGF-1, suggesting that endosulfan might alter the uterine estrogenic pathway compromising uterine receptivity. These alterations could account, at least in part, for the endosulfan-induced implantation failures.
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Affiliation(s)
- María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina.
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Jorge G Ramos
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
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17
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Mian W, Xuedong Z, Liwei Z. [Effect of maternal health and prenatal environmental exposure factors on tooth development]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2017; 35:437-441. [PMID: 28853514 DOI: 10.7518/hxkq.2017.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Odontogenesis is a consequence of a complex series of reciprocal signal interactions between odontogenic epithelium and neural crest-derived odontotgenic mesenchyme. These interactions result from a complex interplay of genetic and environmental factors. Given that a fetus develops in the mother, maternal health and environmental exposures have a great influence on tooth development. In this review, we focused on the key issues in the developmental defects of teeth induced by various types of maternal environmental factors, including environmental endocrine disruptors, joint action of two or more chemical exposures, and maternal health status. This review also discussed the adverse effects of maternal environmental factors on tooth development. These effects include enamel developmental defects, molar incisor hypomineralization, dental fluorosis, hyperdontia and hypodontia. Overall, this review provides a theoretical basis for the prevention of tooth defects in early life, assessment of risks from developmental tooth defects, and advancement of pediatric oral health management.
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Affiliation(s)
- Wan Mian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zhou Xuedong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zheng Liwei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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18
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Babajko S, Jedeon K, Houari S, Loiodice S, Berdal A. Disruption of Steroid Axis, a New Paradigm for Molar Incisor Hypomineralization (MIH). Front Physiol 2017; 8:343. [PMID: 28603502 PMCID: PMC5445125 DOI: 10.3389/fphys.2017.00343] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/10/2017] [Indexed: 01/22/2023] Open
Affiliation(s)
- Sylvie Babajko
- Laboratory of Molecular Oral Pathophysiology, Centre de Recherche des Cordeliers, Institut National de la Santé et de la Recherche Médicale UMRS 1138, University Paris-Descartes, University Pierre et Marie Curie-ParisParis, France.,Unité de Formation et de Recherche en Odontologie, University Paris-DiderotParis, France
| | - Katia Jedeon
- Laboratory of Molecular Oral Pathophysiology, Centre de Recherche des Cordeliers, Institut National de la Santé et de la Recherche Médicale UMRS 1138, University Paris-Descartes, University Pierre et Marie Curie-ParisParis, France.,Unité de Formation et de Recherche en Odontologie, University Paris-DiderotParis, France
| | - Sophia Houari
- Laboratory of Molecular Oral Pathophysiology, Centre de Recherche des Cordeliers, Institut National de la Santé et de la Recherche Médicale UMRS 1138, University Paris-Descartes, University Pierre et Marie Curie-ParisParis, France.,Unité de Formation et de Recherche en Odontologie, University Paris-DiderotParis, France
| | - Sophia Loiodice
- Laboratory of Molecular Oral Pathophysiology, Centre de Recherche des Cordeliers, Institut National de la Santé et de la Recherche Médicale UMRS 1138, University Paris-Descartes, University Pierre et Marie Curie-ParisParis, France.,Unité de Formation et de Recherche en Odontologie, University Paris-DiderotParis, France
| | - Ariane Berdal
- Laboratory of Molecular Oral Pathophysiology, Centre de Recherche des Cordeliers, Institut National de la Santé et de la Recherche Médicale UMRS 1138, University Paris-Descartes, University Pierre et Marie Curie-ParisParis, France.,Unité de Formation et de Recherche en Odontologie, University Paris-DiderotParis, France.,Centre de Référence des Maladies Rares de la face et de la Cavité Buccale MAFACE, Rothschild HospitalParis, France
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19
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Guerrero Schimpf M, Milesi MM, Ingaramo PI, Luque EH, Varayoud J. Neonatal exposure to a glyphosate based herbicide alters the development of the rat uterus. Toxicology 2017; 376:2-14. [PMID: 27287056 DOI: 10.1016/j.tox.2016.06.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 05/26/2016] [Accepted: 06/06/2016] [Indexed: 02/06/2023]
Abstract
Glyphosate-based herbicides (GBHs) are extensively used to control weeds on both cropland and non-cropland areas. No reports are available regarding the effects of GBHs exposure on uterine development. We evaluated if neonatal exposure to a GBH affects uterine morphology, proliferation and expression of proteins that regulate uterine organogenetic differentiation in rats. Female Wistar pups received saline solution (control, C) or a commercial formulation of glyphosate (GBH, 2mg/kg) by sc injection every 48h from postnatal day (PND) 1 to PND7. Rats were sacrificed on PND8 (neonatal period) and PND21 (prepubertal period) to evaluate acute and short-term effects, respectively. The uterine morphology was evaluated in hematoxylin and eosin stained sections. The epithelial and stromal immunophenotypes were established by assessing the expression of luminal epithelial protein (cytokeratin 8; CK8), basal epithelial proteins (p63 and pan cytokeratin CK1, 5, 10 and 14); and vimentin by immunohistochemistry (IHC). To investigate changes on proteins that regulate uterine organogenetic differentiation we evaluated the expression of estrogen receptor alpha (ERα), progesterone receptor (PR), Hoxa10 and Wnt7a by IHC. The GBH-exposed uteri showed morphological changes, characterized by an increase in the incidence of luminal epithelial hyperplasia (LEH) and an increase in the stromal and myometrial thickness. The epithelial cells showed a positive immunostaining for CK8, while the stromal cells for vimentin. GBH treatment increased cell proliferation in the luminal and stromal compartment on PND8, without changes on PND21. GBH treatment also altered the expression of proteins involved in uterine organogenetic differentiation. PR and Hoxa10 were deregulated both immediately and two weeks after the exposure. ERα was induced in the stromal compartment on PND8, and was downregulated in the luminal epithelial cells of gyphosate-exposed animals on PND21. GBH treatment also increased the expression of Wnt7a in the stromal and glandular epithelial cells on PND21. Neonatal exposure to GBH disrupts the postnatal uterine development at the neonatal and prepubertal period. All these changes may alter the functional differentiation of the uterus, affecting the female fertility and/or promoting the development of neoplasias.
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Affiliation(s)
- Marlise Guerrero Schimpf
- Instituto de Salud y Ambiente del Litoral, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
| | - María M Milesi
- Instituto de Salud y Ambiente del Litoral, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
| | - Paola I Ingaramo
- Instituto de Salud y Ambiente del Litoral, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas, Santa Fe, Argentina.
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Jedeon K, Loiodice S, Salhi K, Le Normand M, Houari S, Chaloyard J, Berdal A, Babajko S. Androgen Receptor Involvement in Rat Amelogenesis: An Additional Way for Endocrine-Disrupting Chemicals to Affect Enamel Synthesis. Endocrinology 2016; 157:4287-4296. [PMID: 27684650 DOI: 10.1210/en.2016-1342] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) that interfere with the steroid axis can affect amelogenesis, leading to enamel hypomineralization similar to that of molar incisor hypomineralization, a recently described enamel disease. We investigated the sex steroid receptors that may mediate the effects of EDCs during rat amelogenesis. The expression of androgen receptor (AR), estrogen receptor (ER)-α, and progesterone receptor was dependent on the stage of ameloblast differentiation, whereas ERβ remained undetectable. AR was the only receptor selectively expressed in ameloblasts involved in final enamel mineralization. AR nuclear translocation and induction of androgen-responsive element-containing promoter activity upon T treatment, demonstrated ameloblast responsiveness to androgens. T regulated the expression of genes involved in enamel mineralization such as KLK4, amelotin, SLC26A4, and SLC5A8 but not the expression of genes encoding matrix proteins, which determine enamel thickness. Vinclozolin and to a lesser extent bisphenol A, two antiandrogenic EDCs that cause enamel defects, counteracted the actions of T. In conclusion, we show, for the first time, the following: 1) ameloblasts express AR; 2) the androgen signaling pathway is involved in the enamel mineralization process; and 3) EDCs with antiandrogenic effects inhibit AR activity and preferentially affect amelogenesis in male rats. Their action, through the AR pathway, may specifically and irreversibly affect enamel, potentially leading to the use of dental defects as a biomarker of exposure to environmental pollutants. These results are consistent with the steroid hormones affecting ameloblasts, raising the issue of the hormonal influence on amelogenesis and possible sexual dimorphism in enamel quality.
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Affiliation(s)
- Katia Jedeon
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
| | - Sophia Loiodice
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
| | - Khaled Salhi
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
| | - Manon Le Normand
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
| | - Sophia Houari
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
| | - Jessica Chaloyard
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
| | - Ariane Berdal
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
| | - Sylvie Babajko
- Centre de Recherche des Cordeliers (K.J., S.L., K.S., M.L.N., S.H., J.C., A.B., S.B.), INSERM Unité Mixte de Recherche en Santé 1138, Université Paris-Descartes, Université Pierre et Marie Curie-Paris, Paris Laboratory of Molecular Oral Pathophysiology, and Unité de Formation et de Recherche d'Odontologie (K.J., S.L., K.S., S.H., J.C., A.B., S.B.), Université Paris-Diderot, F-75006 Paris, France; and Centre de Référence des Maladies Rares de la Face et de la Cavité Buccale (K.J., A.B.), Hôpital Rothschild, Assistance Publique-Hôpitaux de Paris, F-75571 Paris, France
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Jedeon K, Houari S, Loiodice S, Thuy TT, Le Normand M, Berdal A, Babajko S. Chronic Exposure to Bisphenol A Exacerbates Dental Fluorosis in Growing Rats. J Bone Miner Res 2016; 31:1955-1966. [PMID: 27257137 DOI: 10.1002/jbmr.2879] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/16/2016] [Accepted: 06/01/2016] [Indexed: 01/27/2023]
Abstract
Enamel defects resulting from environmental conditions and way of life are public health concerns because of their high prevalence. Because their etiology is unclear, the aim of this study was to analyze the various forms of enamel hypomineralization, and to characterize the genes involved in this process to determine the mechanisms involved in disruptions of amelogenesis. We used bisphenol A (BPA) and fluoride as models; both are commonly encountered in human populations and utilized in dentistry. Wistar rats were chronically exposed to 5 μg/kg/day BPA from day 1 of gestation to day 65 after birth (P65) and 5 mM fluoride from P21 to P65. Resulting enamel defects were comparable to the human enamel pathologies molar incisor hypomineralization (MIH) and dental fluorosis (DF) respectively, and were more severe in rats exposed to both agents than to each agent alone. Large-scale transcriptomic analysis of dental epithelium showed a small group of genes the expression of which was affected by exposure to BPA or NaF. Among the most modulated, many are directly involved in amelogenesis (Amelx, Enam, Klk4, Mmp12, Slc26a4, and Slc5a8), and can be regrouped as forming the "hypomineralization enameloma." Each of these gene expression perturbations may contribute to enamel defects. Exposure to BPA weakens enamel, making it more prone to generate frequent mineralization defects MIH and DF. Our study identifies hypomineralization genes that may enable the use of dental enamel as an early marker of exposure to environmental toxicants because of its unique ability to retrospectively record ameloblast pathophysiology. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Katia Jedeon
- Cordeliers Research Centre Inserm UMRS 1138, Paris-Diderot University, Paris-Descartes University, Pierre & Marie Curie-Paris University, Laboratory of Molecular Oral Pathophysiology, Paris, France.,Paris-Diderot University, Faculty of Dentistry, Paris, France.,Centre de Référence des maladies rares de la face et de la cavité buccale MAFACE hôpital Rothschild, Paris, France
| | - Sophia Houari
- Cordeliers Research Centre Inserm UMRS 1138, Paris-Diderot University, Paris-Descartes University, Pierre & Marie Curie-Paris University, Laboratory of Molecular Oral Pathophysiology, Paris, France.,Paris-Diderot University, Faculty of Dentistry, Paris, France.,Groupe Hospitalier La Pitié Salpêtrière-Charles Foix, Paris, France
| | - Sophia Loiodice
- Cordeliers Research Centre Inserm UMRS 1138, Paris-Diderot University, Paris-Descartes University, Pierre & Marie Curie-Paris University, Laboratory of Molecular Oral Pathophysiology, Paris, France.,Paris-Diderot University, Faculty of Dentistry, Paris, France
| | - Tran Thu Thuy
- Cordeliers Research Centre Inserm UMRS 1138, Paris-Diderot University, Paris-Descartes University, Pierre & Marie Curie-Paris University, Laboratory of Molecular Oral Pathophysiology, Paris, France.,Paris-Diderot University, Faculty of Dentistry, Paris, France.,Faculty of Odonto-Stomatology, Ho Chi Minh University of Medicine and Pharmacology, Ho Chi Minh-Ville, Vietnam
| | - Manon Le Normand
- Cordeliers Research Centre Inserm UMRS 1138, Paris-Diderot University, Paris-Descartes University, Pierre & Marie Curie-Paris University, Laboratory of Molecular Oral Pathophysiology, Paris, France
| | - Ariane Berdal
- Cordeliers Research Centre Inserm UMRS 1138, Paris-Diderot University, Paris-Descartes University, Pierre & Marie Curie-Paris University, Laboratory of Molecular Oral Pathophysiology, Paris, France.,Paris-Diderot University, Faculty of Dentistry, Paris, France.,Centre de Référence des maladies rares de la face et de la cavité buccale MAFACE hôpital Rothschild, Paris, France
| | - Sylvie Babajko
- Cordeliers Research Centre Inserm UMRS 1138, Paris-Diderot University, Paris-Descartes University, Pierre & Marie Curie-Paris University, Laboratory of Molecular Oral Pathophysiology, Paris, France.,Paris-Diderot University, Faculty of Dentistry, Paris, France
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22
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Krieg SA, Shahine LK, Lathi RB. Environmental exposure to endocrine-disrupting chemicals and miscarriage. Fertil Steril 2016; 106:941-7. [DOI: 10.1016/j.fertnstert.2016.06.043] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/29/2016] [Accepted: 06/29/2016] [Indexed: 11/24/2022]
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23
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Vigezzi L, Ramos JG, Kass L, Tschopp MV, Muñoz-de-Toro M, Luque EH, Bosquiazzo VL. A deregulated expression of estrogen-target genes is associated with an altered response to estradiol in aged rats perinatally exposed to bisphenol A. Mol Cell Endocrinol 2016; 426:33-42. [PMID: 26898831 DOI: 10.1016/j.mce.2016.02.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 02/11/2016] [Accepted: 02/11/2016] [Indexed: 12/13/2022]
Abstract
Here we assessed the effects of perinatal exposure to bisphenol A (BPA) on the uterine response to 17β-estradiol (E2) in aged rats. Pregnant rats were orally exposed to 0.5 or 50 μg BPA/kg/day from gestational day 9 until weaning. On postnatal day (PND) 360, the rats were ovariectomized and treated with E2 for three months. The uterine tissue of BPA50 and BPA0.5 rats showed increased density of glands with squamous metaplasia (GSM) and glands with daughter glands respectively. Wnt7a expression was lower in GSM of BPA50 rats than in controls. The expression of estrogen receptor 1 (ESR1) and its 5'- untranslated exons ESR1-O and ESR1-OT was lower in BPA50 rats. Both doses of BPA modified the expression of coactivator proteins and epigenetic regulatory enzymes. Thus, perinatal BPA-exposed rats showed different glandular abnormalities associated with deregulated expression of E2-target genes. Different mechanisms would be involved depending on the BPA dose administered.
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Affiliation(s)
- Lucía Vigezzi
- Instituto de Salud y Ambiente del Litoral (ISAL UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorge G Ramos
- Instituto de Salud y Ambiente del Litoral (ISAL UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Laura Kass
- Instituto de Salud y Ambiente del Litoral (ISAL UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Patología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María V Tschopp
- Instituto de Salud y Ambiente del Litoral (ISAL UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Mónica Muñoz-de-Toro
- Instituto de Salud y Ambiente del Litoral (ISAL UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Patología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Cátedra de Fisiología Humana, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Verónica L Bosquiazzo
- Instituto de Salud y Ambiente del Litoral (ISAL UNL-CONICET), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina; Departamento de Bioquímica Clínica y Cuantitativa, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina.
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Gore AC, Chappell VA, Fenton SE, Flaws JA, Nadal A, Prins GS, Toppari J, Zoeller RT. EDC-2: The Endocrine Society's Second Scientific Statement on Endocrine-Disrupting Chemicals. Endocr Rev 2015; 36:E1-E150. [PMID: 26544531 PMCID: PMC4702494 DOI: 10.1210/er.2015-1010] [Citation(s) in RCA: 1262] [Impact Index Per Article: 140.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 09/01/2015] [Indexed: 02/06/2023]
Abstract
The Endocrine Society's first Scientific Statement in 2009 provided a wake-up call to the scientific community about how environmental endocrine-disrupting chemicals (EDCs) affect health and disease. Five years later, a substantially larger body of literature has solidified our understanding of plausible mechanisms underlying EDC actions and how exposures in animals and humans-especially during development-may lay the foundations for disease later in life. At this point in history, we have much stronger knowledge about how EDCs alter gene-environment interactions via physiological, cellular, molecular, and epigenetic changes, thereby producing effects in exposed individuals as well as their descendants. Causal links between exposure and manifestation of disease are substantiated by experimental animal models and are consistent with correlative epidemiological data in humans. There are several caveats because differences in how experimental animal work is conducted can lead to difficulties in drawing broad conclusions, and we must continue to be cautious about inferring causality in humans. In this second Scientific Statement, we reviewed the literature on a subset of topics for which the translational evidence is strongest: 1) obesity and diabetes; 2) female reproduction; 3) male reproduction; 4) hormone-sensitive cancers in females; 5) prostate; 6) thyroid; and 7) neurodevelopment and neuroendocrine systems. Our inclusion criteria for studies were those conducted predominantly in the past 5 years deemed to be of high quality based on appropriate negative and positive control groups or populations, adequate sample size and experimental design, and mammalian animal studies with exposure levels in a range that was relevant to humans. We also focused on studies using the developmental origins of health and disease model. No report was excluded based on a positive or negative effect of the EDC exposure. The bulk of the results across the board strengthen the evidence for endocrine health-related actions of EDCs. Based on this much more complete understanding of the endocrine principles by which EDCs act, including nonmonotonic dose-responses, low-dose effects, and developmental vulnerability, these findings can be much better translated to human health. Armed with this information, researchers, physicians, and other healthcare providers can guide regulators and policymakers as they make responsible decisions.
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Affiliation(s)
- A C Gore
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
| | - V A Chappell
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
| | - S E Fenton
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
| | - J A Flaws
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
| | - A Nadal
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
| | - G S Prins
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
| | - J Toppari
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
| | - R T Zoeller
- Pharmacology and Toxicology (A.C.G.), College of Pharmacy, The University of Texas at Austin, Austin, Texas 78734; Division of the National Toxicology Program (V.A.C., S.E.F.), National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709; Department of Comparative Biosciences (J.A.F.), University of Illinois at Urbana-Champaign, Urbana, Illinois 61802; Institute of Bioengineering and CIBERDEM (A.N.), Miguel Hernandez University of Elche, 03202 Elche, Alicante, Spain; Departments of Urology, Pathology, and Physiology & Biophysics (G.S.P.), College of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612; Departments of Physiology and Pediatrics (J.T.), University of Turku and Turku University Hospital, 20520 Turku, Finland; and Biology Department (R.T.Z.), University of Massachusetts at Amherst, Amherst, Massachusetts 01003
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25
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Martinez AM, Cheong A, Ying J, Xue J, Kannan K, Leung YK, Thomas MA, Ho SM. Effects of High-Butterfat Diet on Embryo Implantation in Female Rats Exposed to Bisphenol A. Biol Reprod 2015; 93:147. [PMID: 26510865 DOI: 10.1095/biolreprod.115.131433] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 10/22/2015] [Indexed: 12/21/2022] Open
Abstract
Bisphenol A (BPA) is an endocrine disruptor associated with poor pregnancy outcomes in human and rodents. The effects of butterfat diets on embryo implantation and whether it modifies BPA's actions are currently unknown. We aimed to determine the effects of butterfat diet on embryo implantation success in female rats exposed to an environmentally relevant dose of BPA. Female Sprague-Dawley rats were exposed to dietary butterfat (10% or 39% kcal/kg body weight [BW]) in the presence or absence of BPA (250 μg/kg BW) or ethinylestradiol (0.1 μg/kg BW) shortly before and during pregnancy to assess embryo implantation potentials by preimplantation development and transport, in vitro blastulation, outgrowth, and implantation. On gestational day (GD) 4.5, rats treated with BPA alone had higher serum total BPA level (2.3-3.7 ng/ml). They had more late-stage preimplantation embryos, whereas those receiving high butterfat (HBF) diet had the most advanced-stage embryos; dams cotreated with HBF and BPA had the most number of advanced embryos. BPA markedly delayed embryo transport to the uterus, but neither amount of butterfat had modifying effects. An in vitro implantation assay showed HBF doubled the outgrowth area, with BPA having no effect. In vivo, BPA reduced the number of implanted embryos on GD8, and cotreatment with HBF eliminated this adverse effect. HBF diet overall resulted in more and larger GD8 embryos. This study reveals the implantation disruptive effects of maternal exposure to an environmentally relevant dose of BPA and identifies HBF diet as a modifier of BPA in promoting early embryonic health.
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Affiliation(s)
- Alan M Martinez
- Division of Reproductive Endocrinology & Infertility, Department of Obstetrics & Gynecology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Ana Cheong
- Division of Environmental Genetics and Molecular Toxicology, Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio Center for Environmental Genetics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jun Ying
- Division of Biostatistics and Bioinformatics, Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jingchuan Xue
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Albany, New York
| | - Kurunthachalam Kannan
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Albany, New York Biochemistry Department, Faculty of Science and Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yuet-Kin Leung
- Division of Environmental Genetics and Molecular Toxicology, Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio Center for Environmental Genetics, University of Cincinnati College of Medicine, Cincinnati, Ohio Cincinnati Cancer Center, Cincinnati, Ohio
| | - Michael A Thomas
- Division of Reproductive Endocrinology & Infertility, Department of Obstetrics & Gynecology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Shuk-Mei Ho
- Division of Environmental Genetics and Molecular Toxicology, Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio Center for Environmental Genetics, University of Cincinnati College of Medicine, Cincinnati, Ohio Cincinnati Cancer Center, Cincinnati, Ohio Cincinnati Veteran Affairs Hospital Medical Center, Cincinnati, Ohio
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26
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Rivera OE, Varayoud J, Rodríguez HA, Santamaría CG, Bosquiazzo VL, Osti M, Belmonte NM, Muñoz-de-Toro M, Luque EH. Neonatal exposure to xenoestrogens impairs the ovarian response to gonadotropin treatment in lambs. Reproduction 2015; 149:645-55. [PMID: 25778539 DOI: 10.1530/rep-14-0567] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 03/16/2015] [Indexed: 11/08/2022]
Abstract
Bisphenol A (BPA) and diethylstilbestrol (DES) are xenoestrogens, which have been associated with altered effects on reproduction. We hypothesized that neonatal xenoestrogen exposure affects the ovarian functionality in lambs. Thus, we evaluated the ovarian response to exogenous ovine FSH (oFSH) administered from postnatal day 30 (PND30) to PND32 in female lambs previously exposed to low doses of DES or BPA (BPA50: 50 μg/kg per day, BPA0.5: 0.5 μg/kg per day) from PND1 to PND14. We determined: i) follicular growth, ii) circulating levels of 17β-estradiol (E2), iii) steroid receptors (estrogen receptor alpha, estrogen receptor beta, and androgen receptor (AR)) and atresia, and iv) mRNA expression levels of the ovarian bone morphogenetic protein (BMPs) system (BMP6, BMP15, BMPR1B, and GDF9) and FSH receptor (FSHR). Lambs neonatally exposed to DES or BPA showed an impaired ovarian response to oFSH with a lower number of follicles ≥2 mm in diameter together with a lower number of atretic follicles and no increase in E2 serum levels in response to oFSH treatment. In addition, AR induction by oFSH was disrupted in granulosa and theca cells of lambs exposed to DES or BPA. An increase in GDF9 mRNA expression levels was observed in oFSH-primed lambs previously treated with DES or BPA50. In contrast, a decrease in BMPR1B was observed in BPA0.5-postnatally exposed lambs. The modifications in AR, GDF9, and BMPR1B may be associated with the altered ovarian function due to neonatal xenoestrogen exposure in response to an exogenous gonadotropin stimulus. These alterations may be the pathophysiological basis of subfertility syndrome in adulthood.
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Affiliation(s)
- Oscar E Rivera
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Jorgelina Varayoud
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Horacio A Rodríguez
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Clarisa G Santamaría
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Verónica L Bosquiazzo
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Mario Osti
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Norberto M Belmonte
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Mónica Muñoz-de-Toro
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
| | - Enrique H Luque
- Facultad de Ciencias AgrariasUniversidad Nacional de Lomas de Zamora, Buenos Aires, ArgentinaFacultad de Bioquímica y Ciencias BiológicasInstituto de Salud y Ambiente del Litoral (ISAL), Universidad Nacional del Litoral, Casilla de Correo 242, 3000 Santa Fe, Argentina
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27
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Vigezzi L, Bosquiazzo VL, Kass L, Ramos JG, Muñoz-de-Toro M, Luque EH. Developmental exposure to bisphenol A alters the differentiation and functional response of the adult rat uterus to estrogen treatment. Reprod Toxicol 2015; 52:83-92. [PMID: 25666754 DOI: 10.1016/j.reprotox.2015.01.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 01/23/2015] [Accepted: 01/29/2015] [Indexed: 10/24/2022]
Abstract
We assessed the long-term effect of perinatal exposure to bisphenol A (BPA) on the rat uterus and the uterine response to estrogen (E2) replacement therapy. BPA (0.5 or 50μg/kg/day) was administered in the drinking water from gestational day 9 until weaning. We studied the uterus of female offspring on postnatal day (PND) 90 and 360, and the uterine E2 response on PND460 (PND460-E2). On PND90, BPA-exposed rats showed altered glandular proliferation and α-actin expression. On PND360, BPA exposure increased the incidence of abnormalities in the luminal and glandular epithelium. On PND460-E2, the multiplicity of glands with squamous metaplasia increased in BPA50 while the incidence of glands with daughter glands increased in BPA0.5. The expression of steroid receptors, p63 and IGF-I was modified in BPA-exposed rats on PND460-E2. The long-lasting effects of perinatal exposure to BPA included induction of abnormalities in uterine tissue and altered response to E2 replacement therapy.
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Affiliation(s)
- Lucía Vigezzi
- Instituto de Salud y Ambiente del Litoral (ISAL) - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Verónica L Bosquiazzo
- Instituto de Salud y Ambiente del Litoral (ISAL) - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Laura Kass
- Instituto de Salud y Ambiente del Litoral (ISAL) - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Jorge G Ramos
- Instituto de Salud y Ambiente del Litoral (ISAL) - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Mónica Muñoz-de-Toro
- Instituto de Salud y Ambiente del Litoral (ISAL) - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL) - CONICET, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina.
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Milesi MM, Alarcón R, Ramos JG, Muñoz-de-Toro M, Luque EH, Varayoud J. Neonatal exposure to low doses of endosulfan induces implantation failure and disrupts uterine functional differentiation at the pre-implantation period in rats. Mol Cell Endocrinol 2015; 401:248-59. [PMID: 25486513 DOI: 10.1016/j.mce.2014.11.028] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 11/26/2014] [Accepted: 11/28/2014] [Indexed: 01/12/2023]
Abstract
We investigated whether neonatal exposure to low doses of endosulfan affects fertility and uterine functional differentiation at pre-implantation in rats. Newborn female rats received the vehicle, 0.2 µg/kg/d of diethylstilbestrol (DES), 6 µg/kg/d of endosulfan (Endo6) or 600 µg/kg/d of endosulfan (Endo600) on postnatal days (PND) 1, 3, 5, and 7. On PND90, the rats were mated to evaluate their reproductive performance on gestational day (GD) 19 and their ovarian steroid serum levels, endometrial proliferation and implantation-associated proteins on GD5. DES and endosulfan decreased the pregnancy rate and the number of implantation sites. On GD5, DES and endosulfan did not change the serum levels of 17β-estradiol (E2) and progesterone (P); the endometrial proliferation decreased, which was associated with silencing of Hoxa10 in the Endo600-treated rats. Both doses of endosulfan increased the progesterone receptor (PR) expression, whereas the higher dose led additionally to an increase in estrogen receptor alpha (ERα). In the Endo600-treated rats, the down-regulation of Hoxa10 was associated with a deregulation of the steroid receptor coregulators. Alterations in endometrial proliferation and the endocrine pathway of Hoxa10/steroid receptors/coregulators might be the mechanism of endosulfan-induced implantation failure.
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Affiliation(s)
- María M Milesi
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Ramiro Alarcón
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Jorge G Ramos
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Mónica Muñoz-de-Toro
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - Jorgelina Varayoud
- Instituto de Salud y Ambiente del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina.
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29
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A Lecture to Explain Endocrine Disrupting Chemicals to the Second Class Students of a Medical Faculty. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.sbspro.2015.01.718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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