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Sakali AK, Bargiota A, Bjekic-Macut J, Macut D, Mastorakos G, Papagianni M. Environmental factors affecting female fertility. Endocrine 2024:10.1007/s12020-024-03940-y. [PMID: 38954374 DOI: 10.1007/s12020-024-03940-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/21/2024] [Indexed: 07/04/2024]
Abstract
INTRODUCTION Over the recent years, scientific community has increased its interest on solving problems of female fertility pathology. Many factors acting separately or in combination affect significantly the reproductive life of a woman. This review summarizes current evidence regarding the direct and/or indirect action of environmental factors and endocrine disrupting chemicals (EDCs; i.e. heavy metals, plasticizers, parabens, industrial chemicals, pesticides, or medications, by-products, anti-bacterial agents, perfluorochemicals) upon assisted and non-assisted female fertility, extracted from in vivo and in vitro animal and human published data. Transgenerational effects which could have been caused epigenetically by the action of EDCs have been raised. METHODS This narrative review englobes and describes data from in vitro and in vivo animal and human studies with regard to the action of environmental factors, which include EDCs, on female fertility following the questions for narrative reviews of the SANRA (a scale for the quality assessment of narrative review articles). The identification of the studies was done: through the PubMed Central and the PubMed of the MEDLINE, the Google Scholar database and the Cochrane Library database until December 2023 combining appropriate keywords ("specific environmental factors" including "EDCs" AND "specific negative fertility outcomes"); by manual scanning of references from selected articles and reviews focusing on these subjects. It includes references to EDCs-induced transgenerational effects. RESULTS From the reported evidence emerge negative or positive associations between specific environmental factors or EDCs and infertility outcomes such as infertility indices, disrupted maturation of the oocytes, anovulation, deranged transportation of the embryo and failure of implantation. CONCLUSION The revealed adverse outcomes related to female fertility could be attributed to exposure to specific environmental factors such as temperature, climate, radiation, air pollutants, nutrition, toxic substances and EDCs. The recognition of fertility hazards related to the environment will permit the limitation of exposure to them, will improve female fertility and protect the health potential of future generations.
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Affiliation(s)
- Anastasia-Konstantina Sakali
- Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, School of Medicine, University of Thessaly, Larissa, Greece
| | - Alexandra Bargiota
- Department of Endocrinology and Metabolic Diseases, Larissa University Hospital, School of Medicine, University of Thessaly, Larissa, Greece
| | - Jelica Bjekic-Macut
- Department of Endocrinology, University Medical Center Bežanijska kosa, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Djuro Macut
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - George Mastorakos
- Unit of Endocrinology, Diabetes Mellitus and Metabolism, Aretaieion Hospital, Athens Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Papagianni
- Department of Nutrition and Dietetics, School of Physical Education, Sport Science and Dietetics, University of Thessaly, Trikala, Greece.
- Endocrine Unit, 3rd Department of Pediatrics, Hippokration Hospital of Thessaloniki, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Geng Z, Jin Y, Quan F, Huang S, Shi S, Hu B, Chi Z, Kong I, Zhang M, Yu X. Methoxychlor induces oxidative stress and impairs early embryonic development in pigs. Front Cell Dev Biol 2023; 11:1325406. [PMID: 38107075 PMCID: PMC10722284 DOI: 10.3389/fcell.2023.1325406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 11/20/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction: Methoxychlor (MXC) is an organochlorine pesticide (OCP) that was formerly used worldwide as an insecticide against pests and mosquitoes. However, MXC is not biodegradable and has lipophilic characteristics; thus, it accumulates in organisms and affects reproductive function. MXC, as an estrogenic compound, promotes oxidative stress, induces oxidative stress damage to ovarian follicles, and causes miscarriages and stillbirths in females. In this research endeavor, our primary objective was to explore the ramifications of MXC regarding the developmental processes occurring during the initial stages of embryogenesis in pigs. Methods: In this study, we counted the blastocyst rate of early embryos cultured in vitro. We also examined the reactive oxygen species level, glutathione level, mitochondrial membrane potential, mitochondrial copy number and ATP level in four-cell stage embryos. Finally, apoptosis and DNA damage in blastocyst cells, as well as pluripotency-related and apoptosis-related genes in blastocyst cells were detected. The above experiments were used to evaluate the changes of MXC damage on early parthenogenetic embryo development. Results and Discussion: The results showed that early embryos exposed to MXC had a significantly lower cleavage rate, blastocyst rate, hatching rate, and total cell count compared with the control group. It was also of note that MXC not only increased the levels of reactive oxygen species (ROS), but also decreased the mitochondrial membrane potential (ΔΨm) and mitochondrial copy number during the development of early embryos. In addition, after MXC treatment, blastocyst apoptosis and DNA damage were increased, decreased cell proliferation, and the expression of pluripotency-related genes SOX2, NANOG, and OCT4 was down-regulated, while the expression of apoptosis-related genes BAX/BCL-2 and Caspase9 was up-regulated. Our results clearly show that MXC can have deleterious effects on the developmental processes of early porcine embryos, establishing the toxicity of MXC to the reproductive system. In addition, the study of this toxic effect may lead to greater concern about pesticide residues in humans and the use of safer pesticides, thus potentially preventing physiological diseases caused by chemical exposure.
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Affiliation(s)
- Zhaojun Geng
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Yongxun Jin
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Fushi Quan
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Siyi Huang
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Shuming Shi
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Bing Hu
- Animal Genome Editing Technology Innovation Center, College of Animal Science, Jilin University, Changchun, China
| | - Zhichao Chi
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
| | - Ilkeun Kong
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
- Department of Animal Science, Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju, Republic of Korea
| | - Mingjun Zhang
- Animal Genome Editing Technology Innovation Center, College of Animal Science, Jilin University, Changchun, China
| | - Xianfeng Yu
- Jilin Provincial Key Laboratory of Animal Model, College of Animal Science, Jilin University, Changchun, China
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Sharma S, Malhotra L, Mukherjee P, Kaur N, Krishanlata T, Srikanth CV, Mishra V, Banerjee BD, Ethayathulla AS, Sharma RS. Putative interactions between transthyretin and endosulfan II and its relevance in breast cancer. Int J Biol Macromol 2023; 235:123670. [PMID: 36796556 DOI: 10.1016/j.ijbiomac.2023.123670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/04/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
The unregulated use of organochlorine pesticides (OCPs) has been linked to spread of breast cancer (BC), but the underlying biomolecular interactions are unknown. Using a case-control study, we compared OCP blood levels and protein signatures among BC patients. Five pesticides were found in significantly higher concentrations in breast cancer patients than in healthy controls: p',p' dichloro diphenyl trichloroethane (DDT), p'p' dichloro diphenyl dichloroethane (DDD), endosulfan II, delta-hexachlorocyclohexane (dHCH), and heptachlor epoxide A (HTEA). According to the odds ratio analysis, these OCPs, which have been banned for decades, continue to raise the risk of cancer in Indian women. Proteomic analysis of plasma from estrogen receptor-positive breast cancer patients revealed 17 dysregulated proteins, but transthyretin (TTR) was three times higher than in healthy controls, which is further validated by enzyme-linked immunosorbent assays (ELISA). Molecular docking and molecular dynamics studies revealed a competitive affinity between endosulfan II and the thyroxine-binding site of TTR, pointing towards the significance of the competition between thyroxin and endosulfan, resulting in endocrine disruption leading to breast cancer. Our study sheds light on the putative role of TTR in OCP-mediated BC, but more research is needed to decipher the underlying mechanisms that can be used to prevent the carcinogenic effects of these pesticides on women's health.
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Affiliation(s)
- Saurabh Sharma
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental Studies, University of Delhi, Delhi 110 007, India; Department of Biophysics, All India Institutes of Medial, Sciences, New Delhi 110029, India
| | - Lakshay Malhotra
- Department of Biophysics, All India Institutes of Medial, Sciences, New Delhi 110029, India
| | - Paromita Mukherjee
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental Studies, University of Delhi, Delhi 110 007, India
| | - Navneet Kaur
- Department of Surgery, University College of Medical Sciences, GTB Hospital, Delhi 110095, India
| | - Thammineni Krishanlata
- Environmental Biochemistry & Molecular Biology Laboratory, Department of Biochemistry, University College of Medical Sciences, University of Delhi, Delhi 110095, India
| | - Chittur V Srikanth
- Regional Centre for Biotechnology, 3 (rd) milestones, Gurgaon-Faridabad Expressway, Faridabad 121001, India
| | - Vandana Mishra
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental Studies, University of Delhi, Delhi 110 007, India; Centre for Inter-disciplinary Studies of Mountain & Hill Environment (CISMHE), University of Delhi, Delhi, India.
| | - Basu Dev Banerjee
- Environmental Biochemistry & Molecular Biology Laboratory, Department of Biochemistry, University College of Medical Sciences, University of Delhi, Delhi 110095, India.
| | | | - Radhey Shyam Sharma
- Bioresources and Environmental Biotechnology Laboratory, Department of Environmental Studies, University of Delhi, Delhi 110 007, India; Delhi School of Climate Change & Sustainability, Institute of Eminence, University of Delhi, Delhi 110007, India.
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Roberts JF, Jeff Huang CC. Bovine models for human ovarian diseases. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2022; 189:101-154. [PMID: 35595347 DOI: 10.1016/bs.pmbts.2022.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
During early embryonic development, late fetal growth, puberty, adult reproductive years, and advanced aging, bovine and human ovaries closely share molecular pathways and hormonal signaling mechanisms. Other similarities between these species include the size of ovaries, length of gestation, ovarian follicular and luteal dynamics, and pathophysiology of ovarian diseases. As an economically important agriculture species, cattle are a foundational species in fertility research with decades of groundwork using physiologic, genetic, and therapeutic experimental techniques. Many technologies used in modern reproductive medicine, such as ovulation induction using hormonal therapy, were first used in cows before human trials. Human ovarian diseases with naturally occurring bovine correlates include premature ovary insufficiency (POI), polycystic ovarian syndrome (PCOS), and sex-cord stromal tumors (SCSTs). This article presents an overview of bovine ovary research related to causes of infertility, ovarian diseases, diagnostics, and therapeutics, emphasizing where the bovine model can offer advantages over other lab animals for translational applications.
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Affiliation(s)
- John F Roberts
- Department of Comparative, Diagnostic & Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, United States.
| | - Chen-Che Jeff Huang
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, United States
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Laws MJ, Neff AM, Brehm E, Warner GR, Flaws JA. Endocrine disrupting chemicals and reproductive disorders in women, men, and animal models. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2021; 92:151-190. [PMID: 34452686 PMCID: PMC9743013 DOI: 10.1016/bs.apha.2021.03.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This chapter covers the known effects of endocrine disrupting chemicals (EDCs) on reproductive disorders. The EDCs represented are highly studied, including plasticizers (bisphenols and phthalates), chemicals in personal care products (parabens), persistent environmental contaminants (polychlorinated biphenyls), and chemicals in pesticides or herbicides. Both female and male reproductive disorders are reviewed in the chapter. Female disorders include infertility/subfertility, irregular reproductive cycles, early menopause, premature ovarian insufficiency, polycystic ovarian syndrome, endometriosis, and uterine fibroids. Male disorders include infertility/subfertility, cryptorchidism, and hypospadias. Findings from both human and animal studies are represented.
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Bhardwaj JK, Saraf P. N-acetyl-l-cysteine mediated regulation of DNA fragmentation, an apoptotic event, against methoxychlor toxicity in the granulosa cells of ovarian antral follicles. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2020; 858-860:503222. [DOI: 10.1016/j.mrgentox.2020.503222] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 10/23/2022]
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Gandolfi F, Ghiringhelli M, Brevini TA. Bioengineering the ovary to preserve and reestablish female fertility. Anim Reprod 2020; 16:45-51. [PMID: 33299478 PMCID: PMC7721072 DOI: 10.21451/1984-3143-ar2018-0099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/04/2018] [Indexed: 11/06/2022] Open
Abstract
Different bioengineering strategies can be presently adopted and have been shown to have great potential in the treatment of female infertility and ovarian dysfunction deriving from chemotherapy, congenital malformations, massive adhesions as well as aging and lifestyle. One option is transplantation of fresh or cryopreserved organs/fragments into the patient. A further possibility uses tissue engineering approaches that involve a combination of cells, biomaterials and factors that stimulate local ability to regenerate/ repair the reproductive organ. Organ transplant has shown promising results in large animal models. However, the source of the organ needs to be identified and the immunogenic effects of allografts remain still to be solved before the technology may enter the clinical practice. Decellularization/ repopulation of ovary with autologous cells or follicles could represent an interesting, still very experimental alternative. Here we summarize the recent advancements in the bioengineering strategies applied to the ovary, we present the principles for these systems and discuss the advantages of these emerging opportunities to preserve or improve female fertility.
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Affiliation(s)
- Fulvio Gandolfi
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, Università degli Studi di Milano, Milano 20122, Italy.
| | - Matteo Ghiringhelli
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Milano 20122, Italy.
| | - Tiziana A.L. Brevini
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Milano 20122, Italy.
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Bhardwaj JK, Mittal M, Saraf P, Kumari P. Pesticides induced oxidative stress and female infertility: a review. TOXIN REV 2018. [DOI: 10.1080/15569543.2018.1474926] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jitender Kumar Bhardwaj
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Meenu Mittal
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Priyanka Saraf
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Priya Kumari
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
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Histone demethylase KDM4A and KDM4B expression in granulosa cells from women undergoing in vitro fertilization. J Assist Reprod Genet 2018. [PMID: 29536385 DOI: 10.1007/s10815-018-1151-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE To assess expression of the histone demethylases KDM4A and KDM4B in granulosa collected from women undergoing oocyte retrieval and to determine if expression was related to pregnancy outcome. METHODS Cumulus and mural granulosa cells were obtained from women undergoing oocyte retrieval. KDM4A and KDM4B mRNA expression was determined by qRT-PCR. KDM4A and KDM4B proteins were immunohistochemically localized in ovarian tissue sections obtained from archival specimens. RESULTS KDM4A and KDM4B protein was localized to oocytes, granulosa cells, and theca and luteal cells in ovaries from reproductive-aged women. KDM4A and KDM4B mRNA expression was overall higher in cumulus compared to mural granulosa. When comparing granulosa demethylase gene expression, KDM4A and KDM4B mRNA expression was higher in both cumulus and mural granulosa from not pregnant patients compared to patients in the pregnant-live birth group. CONCLUSIONS Histone demethylases KDM4A and KDM4B mRNA are differentially expressed in cumulus and mural granulosa. Expression of both KDM4A and KDM4B mRNA was lower in cumulus granulosa and mural granulosa from pregnant compared to not pregnant patients. These findings suggest that altered expression of histone demethylases may impact epigenetic changes in granulosa cells associated with pregnancy.
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Rattan S, Zhou C, Chiang C, Mahalingam S, Brehm E, Flaws JA. Exposure to endocrine disruptors during adulthood: consequences for female fertility. J Endocrinol 2017; 233:R109-R129. [PMID: 28356401 PMCID: PMC5479690 DOI: 10.1530/joe-17-0023] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 03/29/2017] [Indexed: 01/10/2023]
Abstract
Endocrine disrupting chemicals are ubiquitous chemicals that exhibit endocrine disrupting properties in both humans and animals. Female reproduction is an important process, which is regulated by hormones and is susceptible to the effects of exposure to endocrine disrupting chemicals. Disruptions in female reproductive functions by endocrine disrupting chemicals may result in subfertility, infertility, improper hormone production, estrous and menstrual cycle abnormalities, anovulation, and early reproductive senescence. This review summarizes the effects of a variety of synthetic endocrine disrupting chemicals on fertility during adult life. The chemicals covered in this review are pesticides (organochlorines, organophosphates, carbamates, pyrethroids, and triazines), heavy metals (arsenic, lead, and mercury), diethylstilbesterol, plasticizer alternatives (di-(2-ethylhexyl) phthalate and bisphenol A alternatives), 2,3,7,8-tetrachlorodibenzo-p-dioxin, nonylphenol, polychlorinated biphenyls, triclosan, and parabens. This review focuses on the hypothalamus, pituitary, ovary, and uterus because together they regulate normal female fertility and the onset of reproductive senescence. The literature shows that several endocrine disrupting chemicals have endocrine disrupting abilities in females during adult life, causing fertility abnormalities in both humans and animals.
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Affiliation(s)
- Saniya Rattan
- Department of Comparative BiosciencesUniversity of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Changqing Zhou
- Department of Comparative BiosciencesUniversity of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Catheryne Chiang
- Department of Comparative BiosciencesUniversity of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Sharada Mahalingam
- Department of Comparative BiosciencesUniversity of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Emily Brehm
- Department of Comparative BiosciencesUniversity of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Jodi A Flaws
- Department of Comparative BiosciencesUniversity of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Bhardwaj JK, Saraf P. N-acetyl cysteine-mediated effective attenuation of methoxychlor-induced granulosa cell apoptosis by counteracting reactive oxygen species generation in caprine ovary. ENVIRONMENTAL TOXICOLOGY 2017; 32:156-166. [PMID: 26635070 DOI: 10.1002/tox.22221] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/06/2015] [Accepted: 11/06/2015] [Indexed: 06/05/2023]
Abstract
Methoxychlor (MXC), an organochloride insecticide, is a potent toxicant-targeting female reproductive system and known to cause follicular atresia by inducing apoptosis within granulosa cells. Oxidative stress plays a pivotal role in apoptosis; thus, this study focuses on the ameliorative action of N-acetyl cysteine (NAC) on MXC-induced oxidative stress and apoptosis within granulosa cell of caprine ovary. Classic histology, fluorescence assay, and biochemical parameters were employed to evaluate the effect of varied concentration of NAC (1, 5, and 10 mM) on granulosa cell apoptosis after 24, 48, and 72 h exposure duration. Histomorphological studies revealed that NAC diminished the incidence of apoptotic attributes like condensed or marginated chromatin, pyknosis, crescent-shaped nucleus, empty cell spaces, and degenerated cellular structure along with the presence of cytoplasmic processes within granulosa cells in dose- and time-dependent manner. NAC significantly downregulated the percentage of MXC-induced granulosa cell apoptosis within healthy ovarian follicle with its increasing dose, maximum at 10 mM concentration. It also significantly (p < 0.05) upregulated the activity of antioxidant enzymes, namely catalase, superoxide dismutase, and glutathione-s-transferase, along with ferric reducing antioxidant power further declining lipid peroxidation in the MXC-treated caprine ovary. The results revealed a negative correlation between apoptosis frequency and antioxidant enzymes' activity (rCAT = -0.67, rSOD = -0.56, rGST = -0.31; p < 0.05) while a positive correlation was observed with lipid peroxidation (r = 0.63; p < 0.05) after NAC supplementation. Thus, NAC supplementation reduces the MXC-generated oxidative stress that perhaps declines the ROS generating signal transduction pathway of apoptosis, thereby preventing MXC-induced granulosa cell apoptosis and follicular atresia. © 2015 Wiley Periodicals, Inc. Environ Toxicol 32: 156-166, 2017.
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Affiliation(s)
- Jitender Kumar Bhardwaj
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, 136119, India
| | - Priyanka Saraf
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, 136119, India
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Tannenbaum LV, Beasley JC. Validating mammalian resistance to stressor-mediated reproductive impact using rodent sperm analysis. ECOTOXICOLOGY (LONDON, ENGLAND) 2016; 25:584-593. [PMID: 26879951 DOI: 10.1007/s10646-016-1617-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/27/2016] [Indexed: 06/05/2023]
Abstract
Small rodents from chemically and radiologically contaminated areas on the Savannah River Site, SC were evaluated for sensitive reproductive parameters in a dual purpose study. The primary intent was to observe if established reproductive thresholds-for effect could be exceeded in animals that, due to their restricted home ranges, are maximally exposed to local contamination. Secondarily, validation was sought for a principal element of the Rodent Sperm Analysis method that is used in support of ecological risk assessments for contaminated terrestrial properties. The method's fundamental underlying premise is that during decades of elapsed time between contamination release events and ecological assessments being conducted, rodents develop a resilience to potential stressors, evidenced by their continuing presence. During spring 2014 we collected 89 cotton mice (Peromyscus gossypinus) across three contaminated locations and one reference location, and quantified important male and female reproductive parameters (sperm counts and sperm morphology, and ovarian follicle counts, respectively) and organ weights. The outcome of the comprehensive sperm parameter review, in conjunction with the parallel female reproduction review and other corroborative population and tissue-based information gathered, suggests that mammalian assessments at contaminated sites are unnecessary in the common case.
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Affiliation(s)
- Lawrence V Tannenbaum
- Army Public Health Center (Provisional), MCHB-IP-REH, Bldg. 1675, APG-EA, Aberdeen, MD, 21010-5403, USA.
| | - James C Beasley
- Savannah River Ecology Laboratory, Warnell School of Forestry and Natural Resources, University of Georgia, PO Drawer E, Aiken, SC, 29802, USA
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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: 1244] [Impact Index Per Article: 138.2] [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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14
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Tannenbaum LV, Flaws JA. Exposure Duration-Dependent Ovarian Recovery in Methoxychlor-Treated Mice. ACTA ACUST UNITED AC 2015; 104:238-43. [PMID: 26551443 DOI: 10.1002/bdrb.21164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 10/16/2015] [Indexed: 11/10/2022]
Abstract
The pesticide methoxychlor (MXC) is known to target ovarian antral follicles in the mouse. In previous in vivo studies, MXC administration for 20 days increased atresia, but did not affect female fertility immediately after dosing. Thus, we hypothesized that perhaps not enough time had elapsed between the onset of MXC-induced atresia and actual follicle loss to result in reduced fertility. The current study was undertaken to determine whether MXC treatment for 20 days results in reduced antral follicle numbers and fertility at 30 and 60 days after dosing. To test this hypothesis, adult CD-1 female mice were dosed with vehicle control or MXC (64 mg/kg/day) for 20 days. At 30 and 60 days postdosing, the mice were either subjected to fertility tests or their ovaries were collected and subjected to histological evaluation of follicle numbers and atresia. The results indicate that at 30 days after the completion of dosing, MXC significantly increased atresia and reduced primordial and total follicle numbers, but did not affect fertility compared to controls. At 60 days after completion of dosing, MXC did not significantly affect fertility, follicle numbers, or atresia compared to controls. Collectively, these data indicate that the ovary may be able to recover from MXC treatment for 20 days.
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Affiliation(s)
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
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15
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Abstract
Chemo- and radiation therapies used to treat cancer can have the unintended effect of making patients infertile. Clinically established fertility preservation methods, such as egg and embryo cryopreservation, are not applicable to all patients, which has motivated the development of strategies that involve ovarian tissue removal and cryopreservation before the first sterilizing treatment. To restore fertility at a later date, the early-stage follicles present in the tissue must be matured to produce functional oocytes, a process that is not possible using existing cell culture technologies. This review describes the application of tissue engineering principles to promote ovarian follicle maturation and produce mature oocytes through either in vitro culture or transplantation. The design principles for these engineered systems are presented, along with identification of emerging opportunities in reproductive biology.
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