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Hale MD, Koal T, Pham TH, Bowden JA, Parrott BB. Transcriptional networks underlying a primary ovarian insufficiency disorder in alligators naturally exposed to EDCs. Mol Cell Endocrinol 2022; 557:111751. [PMID: 35963581 DOI: 10.1016/j.mce.2022.111751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/03/2022] [Indexed: 11/29/2022]
Abstract
Interactions between the endocrine system and environmental contaminants are responsible for impairing reproductive development and function. Despite the taxonomic diversity of affected species and attendant complexity inherent to natural systems, the underlying signaling pathways and cellular consequences are mostly studied in lab models. To resolve the genetic and endocrine pathways that mediate affected ovarian function in organisms exposed to endocrine disrupting contaminants in their natural environments, we assessed broad-scale transcriptional and steroidogenic responses to exogenous gonadotropin stimulation in juvenile alligators (Alligator missippiensis) originating from a lake with well-documented pollution (Lake Apopka, FL) and a nearby reference site (Lake Woodruff, FL). We found that individuals from Lake Apopka are characterized by hyperandrogenism and display hyper-sensitive transcriptional responses to gonadotropin stimulation when compared to individuals from Lake Woodruff. Site-specific transcriptomic divergence appears to be driven by wholly distinct subsets of transcriptional regulators, indicating alterations to fundamental genetic pathways governing ovarian function. Consistent with broad-scale transcriptional differences, ovaries of Lake Apopka alligators displayed impediments to folliculogenesis, with larger germinal beds and decreased numbers of late-stage follicles. After resolving the ovarian transcriptome into clusters of co-expressed genes, most site-associated modules were correlated to ovarian follicule phenotypes across individuals. However, expression of two site-specific clusters were independent of ovarian cellular architecture and are hypothesized to represent alterations to cell-autonomous transcriptional programs. Collectively, our findings provide high resolution mapping of transcriptional patterns to specific reproductive function and advance our mechanistic understanding regarding impaired reproductive health in an established model of environmental endocrine disruption.
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Affiliation(s)
- Matthew D Hale
- Eugene P. Odum School of Ecology, University of Georgia, Athens, GA, USA; Savannah River Ecology Laboratory, University of Georgia, Aiken, SC, USA; Department of Biology, University of Virginia, Charlottesville, VA, USA
| | | | | | - John A Bowden
- Center for Environmental and Human Toxicology, Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Benjamin B Parrott
- Eugene P. Odum School of Ecology, University of Georgia, Athens, GA, USA; Savannah River Ecology Laboratory, University of Georgia, Aiken, SC, USA.
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2
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Tyner MD, Maloney MO, Kelley BJ, Combelles CM. Comparing the Effects of Bisphenol A, C, and F on Bovine Theca Cells In Vitro. Reprod Toxicol 2022; 111:27-33. [DOI: 10.1016/j.reprotox.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/04/2022] [Accepted: 05/11/2022] [Indexed: 10/18/2022]
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Fenclová T, Řimnáčová H, Chemek M, Havránková J, Klein P, Králíčková M, Nevoral J. Nursing Exposure to Bisphenols as a Cause of Male Idiopathic Infertility. Front Physiol 2022; 13:725442. [PMID: 35283775 PMCID: PMC8908107 DOI: 10.3389/fphys.2022.725442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 01/18/2022] [Indexed: 11/13/2022] Open
Abstract
Idiopathic infertility is a serious problem, which can be caused and explained by exposure to endocrine disruptors, such as bisphenols. In our study, we studied transactional exposure to bisphenol and its effects on newborn male mice throughout their reproductive life. Newborn male mice were exposed to bisphenol S and bisphenol F through maternal milk from post-natal day 0 to post-natal day 15 at concentrations of 0.1 ng.g/bw/day and 10 ng.g/bw/day, respectively. Although there were minimal differences between the control and experimental groups in testicular tissue quality and spermatozoa quality, we discovered an interesting influence on early embryonic development. Moderate doses of bisphenol negatively affected cleavage of the early embryo and subsequently, the blastocyst rate, as well as the number of blastomeres per blastocyst. In our study, we focused on correlations between particular stages from spermatogenesis to blastocyst development. We followed epigenetic changes such as dimethylation of histone H3 and phosphorylation of histone H2 from germ cells to blastocysts; we discovered the transfer of DNA double-strand breaks through the paternal pronucleus from spermatozoa to blastomeres in the blastocyst. We elucidated the impact of sperm DNA damage on early embryonic development, and our results indicate that idiopathic infertility in adulthood may have causes related to the perinatal period.
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Affiliation(s)
- Tereza Fenclová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
- *Correspondence: Tereza Fenclová,
| | - Hedvika Řimnáčová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
| | - Marouane Chemek
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
| | - Jiřina Havránková
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Prague, Czechia
| | - Pavel Klein
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
| | - Milena Králíčková
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Prague, Czechia
| | - Jan Nevoral
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czechia
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, Prague, Czechia
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4
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Zulkifli S, Rahman AA, Kadir SHSA, Nor NSM. Bisphenol A and its effects on the systemic organs of children. Eur J Pediatr 2021; 180:3111-3127. [PMID: 33893858 DOI: 10.1007/s00431-021-04085-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/12/2021] [Accepted: 04/18/2021] [Indexed: 02/06/2023]
Abstract
For the past two decades, growing research has been pointing to multiple repercussions of bisphenol A (BPA) exposure to human health. BPA is a synthetic oestrogen which primarily targets the endocrine system; however, the compound also disturbs other systemic organ functions, in which the magnitude of impacts in those other systems is as comparable to those in the endocrine system. To date, the discoveries on the association between BPA and health outcomes mainly came from animal and in vitro studies, with limited human studies which emphasised on children's health. In this comprehensive review, we summarised studies on human, in vivo and in vitro models to understand the consequences of pre-, post- and perinatal BPA exposure on the perinatal, children and adult health, encompassing cardiovascular, neurodevelopmental, endocrine and reproductive effects.Conclusion: Evidence from in vitro and animal studies may provide further support and better understanding on the correlation between environmental BPA exposure and its detrimental effects in humans and child development, despite the difficulties to draw direct causal relations of BPA effects on the pathophysiology of the diseases/syndromes in children, due to differences in body system complexity between children and adults, as well as between animal and in vitro models and humans. What is known: • Very limited reviews are available on how BPA adversely affects children's health. • Previous papers mainly covered two systems in children. What is new: • Comprehensive review on the detrimental effects of BPA on children health outcomes, including expectations on adult health outcomes following perinatal BPA exposure, as well as covering a small part of BPA alternatives. • Essentially, BPA exposure during pregnancy has huge impacts on the foetus in which it may cause changes in foetal epigenetic programming, resulting in disease onsets during childhood as well as adulthood.
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Affiliation(s)
- Sarah Zulkifli
- Institute of Medical Molecular Biotechnology, Universiti Teknologi MARA (UiTM), Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital, 47000, Sungai Buloh, Malaysia
| | - Amirah Abdul Rahman
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Universiti Teknologi MARA (UiTM), Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital, 47000, Sungai Buloh, Malaysia
| | - Siti Hamimah Sheikh Abdul Kadir
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Universiti Teknologi MARA (UiTM), Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital, 47000, Sungai Buloh, Malaysia.,Institute for Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA (UiTM), Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital, 47000, Sungai Buloh, Malaysia
| | - Noor Shafina Mohd Nor
- Institute for Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA (UiTM), Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital, 47000, Sungai Buloh, Malaysia. .,Department of Paediatrics, Faculty of Medicine, Universiti Teknologi MARA (UiTM), Cawangan Selangor, Kampus Sungai Buloh, Jalan Hospital, 47000, Sungai Buloh, Malaysia.
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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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6
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Yan T, Zhang S, Zhang Q, Deng F, Cai Y, He J, Ma Z, He L, Luo J, Yang D, He Z. Expression patterns and oestradiol regulation of growth differentiation factor 9 in Schizothorax prenanti. Comp Biochem Physiol B Biochem Mol Biol 2020; 248-249:110470. [PMID: 32653508 DOI: 10.1016/j.cbpb.2020.110470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/30/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
Growth differentiation factor 9 (GDF9) plays pivotal roles in regulating follicular development in many mammalian species. In the present study, the full-length Schizothorax prenanti gdf9 cDNA sequence was isolated and characterized, and its expression pattern in developing gonads and in the gonads of exogenous oestradiol (E2)-fed fish were analysed. The S. prenanti gdf9 cDNA sequence consisted of 1958 base pairs (bp), encoded a 413 amino acid, and showed high sequence similarity with Carassius gibelio and Cyprinus carpio. The quantitative real-time PCR analysis revealed that gdf9 was mainly expressed in the gonads, with particularly high expression in the cortical alveoli stage ovary and late-spermatogenic stage testis. Immunohistochemical signals for Gdf9 were mainly detected in chromatin nucleolar oocytes, spermatogonia and spermatocytes. Furthermore, the gonadal expression of gdf9 induced by exogenous E2 was related to the feeding time and dose. Taken together, these findings were helpful to gain a better understanding of the role of Gdf9 in both folliculogenesis and spermatogenesis in S. prenanti.
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Affiliation(s)
- Taiming Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Songpei Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Qian Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Faqiang Deng
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Yueping Cai
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiayang He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhijun Ma
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Liang He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Jie Luo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Deying Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhi He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
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Pivonello C, Muscogiuri G, Nardone A, Garifalos F, Provvisiero DP, Verde N, de Angelis C, Conforti A, Piscopo M, Auriemma RS, Colao A, Pivonello R. Bisphenol A: an emerging threat to female fertility. Reprod Biol Endocrinol 2020; 18:22. [PMID: 32171313 PMCID: PMC7071611 DOI: 10.1186/s12958-019-0558-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 12/19/2019] [Indexed: 02/07/2023] Open
Abstract
Bisphenol-A (BPA) has been reported to be associated to female infertility. Indeed, BPA has been found to be more frequently detected in infertile women thus leading to hypothesize a possible effect of BPA on natural conception and spontaneous fecundity. In addition, in procedures of medically assisted reproduction BPA exposure has been found to be negatively associated with peak serum estradiol levels during gonadotropin stimulation, number of retrieved oocytes, number of normally fertilized oocytes and implantation. BPA deleterious effects are more critical during perinatal exposure, causing dysregulation of hypothalamic-pituitary-ovarian axis in pups and adults, with a precocious maturation of the axis through a damage of GnRH pulsatility, gonadotropin signaling and sex steroid hormone production. Further, BPA exposure during early lifestage may have a transgenerational effect predisposing the subsequent generations to the risk of developing BPA related disease. Experimental studies suggested that prenatal, perinatal and postnatal exposure to BPA can impair several steps of ovarian development, induce ovarian morphology rearrangement and impair ovarian function, particularly folliculogenesis, as well as can impair uterus morphology and function, in female adult animal and offspring. Finally, studies carried out in animal models have been reported the occurrence of endometriosis-like lesions after BPA exposure. Moreover, BPA exposure has been described to encourage the genesis of PCOS-like abnormalities through the impairment of the secretion of sex hormones affecting ovarian morphology and functions, particularly folliculogenesis. The current manuscript summarizes the evidence regarding the association between BPA exposure and female infertility, reviewing both clinical and preclinical studies.
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Affiliation(s)
- Claudia Pivonello
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
| | - Giovanna Muscogiuri
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy.
| | - Antonio Nardone
- Dipartimento di Sanità Pubblica, Università "Federico II" di Napoli, Naples, Italy
| | - Francesco Garifalos
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
- FERTISEXCARES Centro di Andrologia, Medicina della Riproduzione e della Sessualità Maschile e Femminile, Università "Federico II" di Napoli, Naples, Italy
| | - Donatella Paola Provvisiero
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
- Dipartimento di Sanità Pubblica, Università "Federico II" di Napoli, Naples, Italy
- I.O.S. & COLEMAN Srl, Naples, Italy
| | - Nunzia Verde
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
- FERTISEXCARES Centro di Andrologia, Medicina della Riproduzione e della Sessualità Maschile e Femminile, Università "Federico II" di Napoli, Naples, Italy
| | - Cristina de Angelis
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
- Dipartimento di Sanità Pubblica, Università "Federico II" di Napoli, Naples, Italy
- FERTISEXCARES Centro di Andrologia, Medicina della Riproduzione e della Sessualità Maschile e Femminile, Università "Federico II" di Napoli, Naples, Italy
- I.O.S. & COLEMAN Srl, Naples, Italy
| | - Alessandro Conforti
- Dipartimento di Neuroscienze, Scienze Riproduttive ed Odontostomatologiche, Università "Federico II" di Napoli, Naples, Italy
| | - Mariangela Piscopo
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
- FERTISEXCARES Centro di Andrologia, Medicina della Riproduzione e della Sessualità Maschile e Femminile, Università "Federico II" di Napoli, Naples, Italy
- Laboratory of Seminology-sperm bank "Loredana Gandini", Department of Experimental Medicine, University of Rome "La Sapienza", Rome, Italy
| | - Renata Simona Auriemma
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
| | - Annamaria Colao
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
- FERTISEXCARES Centro di Andrologia, Medicina della Riproduzione e della Sessualità Maschile e Femminile, Università "Federico II" di Napoli, Naples, Italy
- Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", Università "Federico II" di Napoli, Naples, Italy
| | - Rosario Pivonello
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università "Federico II" di Napoli, Via Sergio Pansini, 5, Naples, Italy
- FERTISEXCARES Centro di Andrologia, Medicina della Riproduzione e della Sessualità Maschile e Femminile, Università "Federico II" di Napoli, Naples, Italy
- Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", Università "Federico II" di Napoli, Naples, Italy
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Viguié C, Mhaouty-Kodja S, Habert R, Chevrier C, Michel C, Pasquier E. Evidence-based adverse outcome pathway approach for the identification of BPA as en endocrine disruptor in relation to its effect on the estrous cycle. Mol Cell Endocrinol 2018; 475:10-28. [PMID: 29577943 DOI: 10.1016/j.mce.2018.02.007] [Citation(s) in RCA: 22] [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: 07/21/2017] [Revised: 02/13/2018] [Accepted: 02/14/2018] [Indexed: 02/04/2023]
Abstract
Proper cyclicity is essential to reach successful optimal fertility. In rats and mice, BPA exposure is repeatedly and reliably reported to show an adverse effect on the estrous cycle after exposures at different life stages. In humans, a possible association between modifications of menstrual cycle characteristics (e.g. length of the cycle, duration of menstrual bleeding) and sub-fecundity or spontaneous abortion has been observed. Alterations of ovarian cyclicity can therefore be definitely considered as an adverse health outcome. As a prerequisite for the EU REACH regulation to identify a substance as an endocrine disruptor and a SVHC,1 the proof has to be established that the substance can have deleterious health effects resulting from an endocrine mode of action. This review provides an overview of the currently available data allowing to conclude that the adverse effects of BPA exposure on ovarian cyclicity is mediated by an endocrine mode of action.
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Affiliation(s)
- Catherine Viguié
- Toxalim (Research Centre in Food Toxicology), INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Sakina Mhaouty-Kodja
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, CNRS, Neuroscience Paris Seine, Institut de Biologie Paris Seine, 75005 Paris, France
| | - René Habert
- Genetic Stability, Stem Cells and Radiations, CEA, INSERM U 967, University Paris-Diderot, CEA Research Center, Fontenay aux Roses, France
| | - Cécile Chevrier
- INSERM, UMR1085, Researche Institute for Environmental and Occupational Health, Rennes, France
| | - Cécile Michel
- ANSES, Risk Assessment Department, Maisons-Alfort, France
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9
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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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10
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Nevoral J, Kolinko Y, Moravec J, Žalmanová T, Hošková K, Prokešová Š, Klein P, Ghaibour K, Hošek P, Štiavnická M, Řimnáčová H, Tonar Z, Petr J, Králíčková M. Long-term exposure to very low doses of bisphenol S affects female reproduction. Reproduction 2018; 156:47-57. [PMID: 29748175 DOI: 10.1530/rep-18-0092] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 05/10/2018] [Indexed: 12/15/2022]
Abstract
Bisphenols belong to the endocrine disruptors, affecting reproduction even in extremely low doses. Bisphenol S (BPS) has become widely used as a substitute for the earlier-used bisphenol A; however, its harmlessness is questionable. The aim of this study was to evaluate the effect of BPS on folliculogenesis and oocyte quality after in vivo exposure to low doses of BPS. Four-week-old ICR females (n = 16 in each experimental group) were exposed to vehicle control (VC), BPS1 (0.001 ng BPS.g/bw/day), BPS2 (0.1 ng.g/bw/day), BPS3 (10 ng.g/bw/day) and BPS4 (100 ng.g/bw/day) for 4 weeks. Ovaries were subjected to stereology and nano liquid chromatography-mass spectrometry (LC/MS). Simultaneously, metaphase II oocytes were obtained after pregnant mare serum gonadotrophin and human chorionic gonadotrophin administration, followed by immunostaining. In particular, mating and two-cell embryo flushing were performed. We observed that BPS decreases the amount of ovarian follicles and BPS2 (0.1 ng.g/bw/day) affects the volume of antral follicles. Accordingly, ovarian proteome is affected after BPS2 treatment. While BPS2 dosing results mainly in cytoskeletal damage in matured oocytes, the effects of BPS3 and BPS4 seem to be due instead to epigenetic alterations in oocytes. Arguably, these changes lead to observed affection of in vivo fertilization rate after BPS3 and BPS4 treatment. BPS significantly affects female reproduction astoundingly in extremely low doses. These findings underline the necessity to assess the risk of ongoing BPS exposure for public health.
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Affiliation(s)
- Jan Nevoral
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic .,Department of Histology and EmbryologyFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Yaroslav Kolinko
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Histology and EmbryologyFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Jiří Moravec
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | | | | | - Šárka Prokešová
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Faculty of AgrobiologyFood and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Pavel Klein
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Kamar Ghaibour
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Université Lille1Sciences et Technologies, FR3688 CNRS, Villeneuve d'Ascq Cedex, France
| | - Petr Hošek
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Miriama Štiavnická
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Hedvika Řimnáčová
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Zbyněk Tonar
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Histology and EmbryologyFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | | | - Milena Králíčková
- Biomedical CenterFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Histology and EmbryologyFaculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
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11
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Munetsuna E, Yamada H, Yamazaki M, Ando Y, Mizuno G, Ota T, Hattori Y, Sadamoto N, Suzuki K, Ishikawa H, Hashimoto S, Ohashi K. Maternal fructose intake disturbs ovarian estradiol synthesis in rats. Life Sci 2018; 202:117-123. [PMID: 29654807 DOI: 10.1016/j.lfs.2018.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/04/2018] [Accepted: 04/06/2018] [Indexed: 12/31/2022]
Abstract
AIMS Recent increases in fructose consumption have raised concerns regarding the potential adverse intergenerational effects, as maternal fructose intake may induce physiological dysfunction in offspring. However, no reports are available regarding the effect of excess maternal fructose on reproductive tissues such as the ovary. Notably, the maternal intrauterine environment has been demonstrated to affect ovarian development in the subsequent generation. Given the fructose is transferred to the fetus, excess fructose consumption may affect offspring ovarian development. As ovarian development and its function is maintained by 17β-estradiol, we therefore investigated whether excess maternal fructose intake influences offspring ovarian estradiol synthesis. Rats received a 20% fructose solution during gestation and lactation. After weaning, offspring ovaries were isolated. KEY FINDINGS Offspring from fructose-fed dams showed reduced StAR and P450(17α) mRNA levels, along with decreased protein expression levels. Conversely, attenuated P450arom protein level was found in the absence of mRNA expression alteration. Consistent with these phenomena, decreased circulating levels of estradiol were observed. Furthermore, estrogen receptor α (ERα) protein levels were also down-regulated. In accordance, the mRNA for progesterone receptor, a transcriptional target of ERα, was decreased. These results suggest that maternal fructose might alter ovarian physiology in the subsequent generation.
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Affiliation(s)
- Eiji Munetsuna
- Department of Biochemistry, Fujita Health University School of Medicine, Toyoake, Japan.
| | - Hiroya Yamada
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
| | - Mirai Yamazaki
- Department of Clinical Biochemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Yoshitaka Ando
- Department of Joint Research Laboratory of Clinical Medicine, Fujita Health University School of Medicine, Toyoake, Japan
| | - Genki Mizuno
- Department of Joint Research Laboratory of Clinical Medicine, Fujita Health University School of Medicine, Toyoake, Japan
| | - Takeru Ota
- Department of Clinical Biochemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Yuji Hattori
- Department of Clinical Biochemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Nao Sadamoto
- Department of Clinical Biochemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Koji Suzuki
- Department of Preventive Medical Sciences, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Hiroaki Ishikawa
- Department of Clinical Biochemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
| | - Shuji Hashimoto
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
| | - Koji Ohashi
- Department of Clinical Biochemistry, Fujita Health University School of Health Sciences, Toyoake, Japan
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12
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Santamaría CG, Rodriguez HA, Abud JE, Rivera OE, Muñoz-de-Toro M, Luque EH. Impaired ovarian response to exogenous gonadotropins in female rat offspring born to mothers perinatally exposed to Bisphenol A. Reprod Toxicol 2017. [PMID: 28648634 DOI: 10.1016/j.reprotox.2017.06.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The ovary is sensitive to disruption by the environmental estrogen Bisphenol A (BPA). Our aim was to investigate whether perinatal exposure to BPA (50μg/kgday), orally administered, affects ovarian response to exogenous gonadotrophins (PMSG or PMSG+hCG) in prepubertal female offspring. An altered response to gonadotrophins was observed in BPA-exposed rats. Increased proportion of antral follicles, altered levels of ovarian steroidogenic enzymes, gonadotropin receptors, AR and ERβ were observed in PMSG group. Besides that, in response to PMSG+hCG, a persistent high Fshr mRNA expression and a decreased number of follicles with high expression of PR before ovulation were observed. After ovulation, there was an increase in antral atretic follicles, reduced Lhcgr mRNA expression and high serum levels of E2. Therefore, an early exposure to a low dose of BPA during perinatal period induces ovarian changes leading to an altered response to exogenous gonadotropin treatment later in life.
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Affiliation(s)
- C G Santamaría
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
| | - H A Rodriguez
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina.
| | - J E Abud
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
| | - O E Rivera
- Instituto de Investigación Agropecuaria, Ambiente y Salud (IIPAAS), Facultad de Ciencias Agrarias, Universidad Nacional de Lomas de Zamora, Buenos Aires, Argentina
| | - M Muñoz-de-Toro
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
| | - E H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
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13
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Müller DR, Soukup ST, Kurrat A, Liu X, Schmicke M, Xie MY, Kulling SE, Diel P. Neonatal isoflavone exposure interferes with the reproductive system of female Wistar rats. Toxicol Lett 2016; 262:39-48. [PMID: 27506417 DOI: 10.1016/j.toxlet.2016.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/29/2016] [Accepted: 08/05/2016] [Indexed: 12/20/2022]
Abstract
There is increasing concern about possible adverse effects of soy based infant formulas (SBIF) due to their high amount of isoflavones (ISO). The aim of the present study was to investigate effects of neonatal exposure to ISO on reproductive system of female Wistar rats. Animals were exposed to an ISO depleted diet or a diet enriched with an ISO extract (IRD; 508mg ISO/kg) during embryogenesis and adolescence. Pups of each group were fed daily by pipette with ISO-suspension (ISO+; 32mg ISO/kg bw) or placebo from postnatal day (PND) 1 until PND23 resulting in plasma concentrations similar to levels reported in infants fed SBIF. The visceral fat mass was reduced by long-term IRD. Vaginal epithelial height was increased at PND23 and vaginal opening was precocious in ISO+ groups. Later in life, more often irregular estrus cycles were observed in rats of ISO+ groups. In addition, FSH levels and uterine epithelial heights were increased at PND80 in ISO+ groups. In summary, the results indicate that neonatal ISO intake, resulting in plasma concentrations achievable through SBIF, has an estrogenic effect on prepubertal rats and influences female reproductive tract later in life.
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Affiliation(s)
- Dennis R Müller
- Institute of Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University, Cologne, Germany
| | - Sebastian T Soukup
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany, Germany
| | - Anne Kurrat
- Institute of Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University, Cologne, Germany
| | - Xin Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, China
| | - Marion Schmicke
- Clinic for Cattle, Endocrinology, University of Veterinary Medicine, Hannover, Germany
| | - Ming-Yong Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, China
| | - Sabine E Kulling
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany, Germany
| | - Patrick Diel
- Institute of Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University, Cologne, Germany.
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14
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Ingaramo PI, Varayoud J, Milesi MM, Schimpf MG, Muñoz-de-Toro M, Luque EH. Effects of neonatal exposure to a glyphosate-based herbicide on female rat reproduction. Reproduction 2016; 152:403-15. [PMID: 27486271 DOI: 10.1530/rep-16-0171] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/01/2016] [Indexed: 12/17/2022]
Abstract
In this study, we investigated whether neonatal exposure to a glyphosate-based herbicide (GBH) alters the reproductive performance and the molecular mechanisms involved in the decidualization process in adult rats. Newborn female rats received vehicle or 2 mg/kg/day of a GBH on postnatal days (PND) 1, 3, 5 and 7. On PND90, the rats were mated to evaluate (i) the reproductive performance on gestational day (GD) 19 and (ii) the ovarian steroid levels, uterine morphology, endometrial cell proliferation, apoptosis and cell cycle regulators, and endocrine pathways that regulate uterine decidualization (steroid receptors/COUP-TFII/Bmp2/Hoxa10) at the implantation sites (IS) on GD9. The GBH-exposed group showed a significant increase in the number of resorption sites on GD19, associated with an altered decidualization response. In fact, on GD9, the GBH-treated rats showed morphological changes at the IS, associated with a decreased expression of estrogen and progesterone receptors, a downregulation of COUP-TFII (Nr2f2) and Bmp2 mRNA and an increased expression of HOXA10 and the proliferation marker Ki67(Mki67) at the IS. We concluded that alterations in endometrial decidualization might be the mechanism of GBH-induced post-implantation embryo loss.
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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 (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
| | - 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
| | - 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 (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
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15
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Sinclair KD, Rutherford KMD, Wallace JM, Brameld JM, Stöger R, Alberio R, Sweetman D, Gardner DS, Perry VEA, Adam CL, Ashworth CJ, Robinson JE, Dwyer CM. Epigenetics and developmental programming of welfare and production traits in farm animals. Reprod Fertil Dev 2016; 28:RD16102. [PMID: 27439952 DOI: 10.1071/rd16102] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 06/06/2016] [Indexed: 12/11/2022] Open
Abstract
The concept that postnatal health and development can be influenced by events that occur in utero originated from epidemiological studies in humans supported by numerous mechanistic (including epigenetic) studies in a variety of model species. Referred to as the 'developmental origins of health and disease' or 'DOHaD' hypothesis, the primary focus of large-animal studies until quite recently had been biomedical. Attention has since turned towards traits of commercial importance in farm animals. Herein we review the evidence that prenatal risk factors, including suboptimal parental nutrition, gestational stress, exposure to environmental chemicals and advanced breeding technologies, can determine traits such as postnatal growth, feed efficiency, milk yield, carcass composition, animal welfare and reproductive potential. We consider the role of epigenetic and cytoplasmic mechanisms of inheritance, and discuss implications for livestock production and future research endeavours. We conclude that although the concept is proven for several traits, issues relating to effect size, and hence commercial importance, remain. Studies have also invariably been conducted under controlled experimental conditions, frequently assessing single risk factors, thereby limiting their translational value for livestock production. We propose concerted international research efforts that consider multiple, concurrent stressors to better represent effects of contemporary animal production systems.
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16
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Ziv-Gal A, Flaws JA. Evidence for bisphenol A-induced female infertility: a review (2007-2016). Fertil Steril 2016; 106:827-56. [PMID: 27417731 DOI: 10.1016/j.fertnstert.2016.06.027] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 05/25/2016] [Accepted: 06/15/2016] [Indexed: 12/18/2022]
Abstract
We summarized the scientific literature published from 2007 to 2016 on the potential effects of bisphenol A (BPA) on female fertility. We focused on overall fertility outcomes (e.g., ability to become pregnant, number of offspring), organs that are important for female reproduction (i.e., oviduct, uterus, ovary, hypothalamus, and pituitary), and reproductive-related processes (i.e., estrous cyclicity, implantation, and hormonal secretion). The reviewed literature indicates that BPA may be associated with infertility in women. Potential explanations for this association can be generated from experimental studies. Specifically, BPA may alter overall female reproductive capacity by affecting the morphology and function of the oviduct, uterus, ovary, and hypothalamus-pituitary-ovarian axis in animal models. In addition, BPA may disrupt estrous cyclicity and implantation. Nevertheless, further studies are needed to better understand the exact mechanisms of action and to detect potential reproductive toxicity at earlier stages.
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Affiliation(s)
- Ayelet Ziv-Gal
- School of Food and Nutrition, Massey University, Palmerston North, New Zealand
| | - Jodi A Flaws
- Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois.
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17
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Du X, Li Q, Pan Z, Li Q. Androgen receptor and miRNA-126* axis controls follicle-stimulating hormone receptor expression in porcine ovarian granulosa cells. Reproduction 2016; 152:161-9. [PMID: 27222597 DOI: 10.1530/rep-15-0517] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 05/23/2016] [Indexed: 12/31/2022]
Abstract
Androgen, which acts via the androgen receptor (AR), plays crucial roles in mammalian ovarian function. Recent studies showed that androgen/AR signaling regulates follicle-stimulating hormone receptor (FSHR) expression in follicles; however, the detailed mechanism underlying this regulation remained unknown. Here, we demonstrate that AR and miR-126* cooperate to inhibit FSHR expression and function in pig follicular granulosa cells (pGCs). In pGCs, overexpression of AR decreased, whereas knockdown increased, FSHR mRNA and protein expression; however, neither manipulation affected FSHR promoter activity. Using a dual-luciferase reporter assay, we found that the FSHR gene is a direct target of miR-126*, which inhibits FSHR expression and increases the rate of AR-induced apoptosis in pGCs. Collectively, our data show for the first time that the AR/miR-126* axis exerts synergetic effects in the regulation of FSHR expression and apoptosis in pGCs. Our findings thus define a novel pathway, AR/miR-126*/FSHR, that regulates mammalian GC functions.
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Affiliation(s)
- Xing Du
- College of Animal Science and TechnologyNanjing Agricultural University, Nanjing, China
| | - Qiqi Li
- College of Animal Science and TechnologyNanjing Agricultural University, Nanjing, China
| | - Zengxiang Pan
- College of Animal Science and TechnologyNanjing Agricultural University, Nanjing, China
| | - Qifa Li
- College of Animal Science and TechnologyNanjing Agricultural University, Nanjing, China
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18
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Santamaría C, Durando M, Muñoz de Toro M, Luque EH, Rodriguez HA. Ovarian dysfunctions in adult female rat offspring born to mothers perinatally exposed to low doses of bisphenol A. J Steroid Biochem Mol Biol 2016; 158:220-230. [PMID: 26658420 DOI: 10.1016/j.jsbmb.2015.11.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 11/17/2015] [Accepted: 11/25/2015] [Indexed: 01/08/2023]
Abstract
The study of oral exposure to the environmental estrogen bisphenol A (BPA) during the perinatal period and its effects on ovarian functionality in adulthood has generated special interest. Thus, our objective was to investigate ovarian folliculogenesis and steroidogenesis in adult female rat offspring born to mothers exposed to low doses of BPA (BPA50: 50μg/kgday; BPA0.5: 0.5μg/kgday) by the oral route during gestation and breastfeeding. Ovaries from both BPA-treated groups showed reduced primordial follicle recruitment and a greater number of corpora lutea, indicating an increased number of ovulated oocytes, coupled with higher levels of mRNA expression of 3β-hydroxysteroid dehydrogenase and serum progesterone. BPA50-treated animals had lower expression of androgen receptor (AR) at different stages of the growing follicle population. BPA0.5-treated rats evidenced an imbalance of AR expression between primordial/primary follicles, with higher mRNA-follicle-stimulating hormone receptor expression. These results add to the growing evidence that folliculogenesis and steroidogenesis are targets of BPA within the ovary.
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Affiliation(s)
- Clarisa Santamaría
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
| | - Milena Durando
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
| | - Mónica Muñoz de Toro
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina
| | - Horacio A Rodriguez
- Instituto de Salud y Ambiente del Litoral (ISAL, CONICET-UNL), Ciudad Universitaria, Paraje El Pozo s/n, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, CP3000 Santa Fe, Argentina.
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19
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Wang W, Liu S, Li F, Pan X, Li C, Zhang X, Ma Y, La Y, Xi R, Li T. Polymorphisms of the Ovine BMPR-IB, BMP-15 and FSHR and Their Associations with Litter Size in Two Chinese Indigenous Sheep Breeds. Int J Mol Sci 2015; 16:11385-97. [PMID: 25993301 PMCID: PMC4463706 DOI: 10.3390/ijms160511385] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 04/30/2015] [Accepted: 05/11/2015] [Indexed: 12/13/2022] Open
Abstract
The Small Tailed Han sheep and Hu sheep are two prolific local sheep in China. In this study, the polymorphisms of BMPR-IB (Bone morphogenetic protein receptor IB), BMP-15 (Bone morphogenetic protein 15) and FSHR (follicle stimulating hormone receptor) were investigated to check whether they are associated with litter size in Small Tailed Han sheep and Hu sheep. Consequently, three polymorphisms, FecB mutation in BMPR-IB (c.746A>G), FecG mutation in BMP-15 (c.718C>T) and the mutation (g. 47C>T) in FSHR were found in the above two sheep breeds with a total number of 1630 individuals. The single marker association analysis showed that the three mutations were significantly associated with litter size. The ewes with genotype FecBB/FecBB and FecBB/FecB+ had 0.78 and 0.58 more lambs (p < 0.01) than those with genotype FecB+/FecB+, respectively. The heterozygous Han and Hu ewes with FecXG/FecX+ genotype showed 0.30 (p = 0.05) more lambs than those with the FecX+/FecX+ genotype. For FSHR gene, the ewes with genotype CC had 0.52 (p < 0.01) and 0.75 (p < 0.01) more lambs than those with genotypes TC and TT, respectively. Combined effect analyses indicated an extremely significant interaction (p < 0.01) between the random combinations of BMPR-IB, BMP-15 and FSHR genes on litter size. In addition, the Han and Hu ewes with BB/G+/CC genotype harbor the highest litter size among ewes analyzed in current study. In conclusion, BMPR-IB, BMP-15 and FSHR polymorphisms could be used as genetic markers in multi-gene pyramiding for improving litter size in sheep husbandry.
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Affiliation(s)
- Weimin Wang
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Shijia Liu
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Fadi Li
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Xiangyu Pan
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Chong Li
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Xiaoxue Zhang
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Youji Ma
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
- Engineering Laboratory of Sheep Breeding and Reproduction Biotechnology in Gansu Province, Minqin 733300, China.
| | - Yongfu La
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Rui Xi
- College of Animal Science and Technology, Gansu Agriculture University, Lanzhou 730000, China.
| | - Tingfu Li
- Engineering Laboratory of Sheep Breeding and Reproduction Biotechnology in Gansu Province, Minqin 733300, China.
- Minqin Zhongtian Sheep Industry Co., Ltd., Minqin 733300, China.
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