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Serra L, Estienne A, Bongrani A, Ramé C, Caria G, Froger C, Jolivet C, Henriot A, Amalric L, Corbin E, Guérif F, Froment P, Dupont J. The epoxiconazole and tebuconazole fungicides impair granulosa cells functions partly through the aryl hydrocarbon receptor (AHR) signalling with contrasted effects in obese, normo-weight and polycystic ovarian syndrome (PCOS) patients. Toxicol Rep 2024; 12:65-81. [PMID: 38259722 PMCID: PMC10801249 DOI: 10.1016/j.toxrep.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/24/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024] Open
Abstract
Polycystic ovarian syndrome (PCOS), frequently associated to obesity, is the main reproductive disorder in women in age to procreate. Some evidence suggests that pesticides can result in alterations of the female reproductive system, including polycystic ovary syndrome (PCOS). Here, we detected two fungicides, Tebuconazole (Tb) and Epoxiconazole (Epox) in the soils and waters of French area. Our hypothesis is that these two triazoles could be associated to the etiology of PCOS. We used the human KGN cell line and primary human granulosa cells (hGCs) from different group of patients: normal weight non PCOS (NW), normal weight PCOS (PCOS NW), obese (obese) and obese PCOS (PCOS obese). We exposed in vitro these cells to Tb and Epox from 0 up to 10 mM for 24 and 48 h and analysed cell viability and steroidogenesis. In hGCs NW, cell viability was reduced from 12.5 µM for Tb and 75 µM for Epox. In hGCs NW, Epox decreased progesterone (Pg) and estradiol (E2) secretions and inhibited STAR, HSD3B and CYP19A1 mRNA expressions from 25 µM and increased AHR mRNA expression from 75 µM. Tb exposure also reduced steroid secretion and STAR and CYP19A1 mRNA expressions and increased AHR mRNA expression but at cytotoxic concentrations. Silencing of AHR in KGN cells reduced inhibitory effects of Tb and Epox on steroid secretion. Tb and Epox exposure decreased more steroid secretion in hGCs from obese, PCOS NW and PCOS obese groups than in NW group. Moreover, we found a higher gene expression of AHR within these three groups. Taken together, both Epox and Tb reduced steroidogenesis in hGCs through partly AHR and Tb was more cytotoxic than Epox. These triazoles alter more strongly PCOS and/or obese hGCs suggesting that human with reproductive disorders are more sensitive to triazoles exposure.
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Affiliation(s)
- Loise Serra
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Anthony Estienne
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Alice Bongrani
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Christelle Ramé
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Giovanni Caria
- INRAE, Laboratoire d'Analyses des Sols, 273, rue de Cambrai, 62000 Arras, France
| | - Claire Froger
- INRAE Orléans - US 1106, Unité INFOSOL, Orléans, France
| | | | - Abel Henriot
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2, France
| | - Laurence Amalric
- Division Laboratoires, BRGM, 3 Avenue Claude Guillemin, 45060 Orleans Cedex 2, France
| | - Emilie Corbin
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Fabrice Guérif
- Service de Médecine et Biologie de la Reproduction, CHRU de Tours, F-37044 Tours, France
| | - Pascal Froment
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
| | - Joëlle Dupont
- CNRS, IFCE, INRAE, University of Tours, PRC, F-37380 Nouzilly, France
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Hoffmann-Dishon N, Barnett-Itzhaki Z, Zalko D, Hemi R, Farzam N, Hauser R, Racowsky C, Baccarelli AA, Machtinger R. Endocrine-disrupting chemical concentrations in follicular fluid and follicular reproductive hormone levels. J Assist Reprod Genet 2024:10.1007/s10815-024-03101-0. [PMID: 38557803 DOI: 10.1007/s10815-024-03101-0] [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: 01/12/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
PURPOSE To determine correlations between chemicals in follicular fluid (FF) and follicular reproductive hormone levels. METHODS The analysis was part of a larger cohort study to determine associations between exposure to EDCs and in vitro fertilization (IVF) outcomes. FF was aspirated from a single leading follicle per participant. Demographics and data on exposure to EDCs were self-reported by the participants using a questionnaire. The concentrations of estradiol (E2), progesterone (PG), anti-Mullerian hormone (AMH), and inhibin B, as well as that of 12 phthalate metabolites and 12 phenolic chemicals were measured in each FF sample. Multivariate linear regression model was used to identify the drivers of hormone levels based on participant's age, BMI, smoking status, and chemical exposure for the monitored chemicals detected in more than 50% of the samples. Benjamini-Hochberg false discovery rate (FDR) correction was applied on the resulting p values (q value). RESULTS FF samples were obtained from 72 women (mean age 30.9 years). Most of the phthalates and phenolic substances monitored (21/24, 88%) were identified in FF. Ten compounds (7 phthalate metabolites, 3 phenols) were found in more than 50% of samples. In addition, there were positive associations between E2 levels and mono-n-butyl phthalate (MnBP) (beta = 0.01) and mono-isobutyl phthalate (MiBP) (beta = 0.03) levels (q value < 0.05). CONCLUSION Higher concentrations of several phthalate metabolites, present among others in personal care products, were associated with increased E2 levels in FF. The results emphasize the need to further investigate the mechanisms of action of such EDCs on hormonal cyclicity and fertility in women.
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Affiliation(s)
- Nathalie Hoffmann-Dishon
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Division of IVF, Sheba Medical Center, Ramat-Gan 5262000, Israel
| | - Zohar Barnett-Itzhaki
- Public Health Services, Ministry of Health, 9446724, Jerusalem, Israel
- Faculty of Engineering, Ruppin Academic Center, 4025000, Emek Hefer, Israel
- Ruppin Research Group in Environmental and Social Sustainability, Ruppin Academic Center, 4025000, Emek Hefer, Israel
| | - Daniel Zalko
- UMR1331 Toxalim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Rina Hemi
- Division of Endocrinology, Diabetes and Metabolism, Sheba Medical Center, Ramat-Gan 5262000, Israel
| | - Nahid Farzam
- Division of Endocrinology, Diabetes and Metabolism, Sheba Medical Center, Ramat-Gan 5262000, Israel
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Catherine Racowsky
- Department of Obstetrics, Gynecology and Reproductive Medicine, Hospital Foch, Suresnes, France
| | - Andrea A Baccarelli
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Ronit Machtinger
- Infertility and IVF Unit, Department of Obstetrics and Gynecology, Division of IVF, Sheba Medical Center, Ramat-Gan 5262000, Israel.
- School of Medicine, Tel-Aviv University, 6997801, Tel Aviv, Israel.
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Pascuali N, Pu Y, Waye AA, Pearl S, Martin D, Sutton A, Shikanov A, Veiga-Lopez A. Evaluation of Lipids and Lipid-Related Transcripts in Human and Ovine Theca Cells and an in Vitro Mouse Model Exposed to the Obesogen Chemical Tributyltin. ENVIRONMENTAL HEALTH PERSPECTIVES 2024; 132:47009. [PMID: 38630605 PMCID: PMC11023052 DOI: 10.1289/ehp13955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 02/22/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Exposure to obesogenic chemicals has been reported to result in enhanced adipogenesis, higher adipose tissue accumulation, and reduced ovarian hormonal synthesis and follicular function. We have reported that organotins [tributyltin (TBT) and triphenyltin (TPT)] dysregulate cholesterol trafficking in ovarian theca cells, but, whether organotins also exert lipogenic effects on ovarian cells remains unexplored. OBJECTIVE We investigated if environmentally relevant exposures to organotins [TBT, TPT, or dibutyltin (DBT)] induce lipid dysregulation in ovarian theca cells and the role of the liver X receptor (LXR) in this effect. We also tested the effect of TBT on oocyte maturation and neutral lipid accumulation, and lipid-related transcript expression in cumulus cells and preimplantation embryos. METHODS Primary theca cell cultures derived from human and ovine ovaries were exposed to TBT, TPT, or DBT (1, 10, or 50 ng / ml ). The effect of these chemical exposures on neutral lipid accumulation, lipid abundance and composition, lipid homeostasis-related gene expression, and cytokine secretion was evaluated using liquid chromatography-mass spectrometry (LC-MS), inhibitor-based methods, cytokine secretion, and lipid ontology analyses. We also exposed murine cumulus-oocyte complexes to TBT and evaluated oocyte maturation, embryo development, and lipid homeostasis-related mRNA expression in cumulus cells and blastocysts. RESULTS Exposure to TBT resulted in higher intracellular neutral lipids in human and ovine primary theca cells. In ovine theca cells, this effect was dose-dependent, independent of cell stage, and partially mediated by LXR. DBT and TPT resulted in higher intracellular neutral lipids but to a lesser extent in comparison with TBT. More than 140 lipids and 9 cytokines were dysregulated in TBT-exposed human theca cells. Expression of genes involved in lipogenesis and fatty acid synthesis were higher in theca cells, as well as in cumulus cells and blastocysts exposed to TBT. However, TBT did not impact the rates of oocyte maturation or blastocyst development. DISCUSSION TBT induced dyslipidemia in primary human and ovine theca cells, which may be responsible for some of the TBT-induced fertility dysregulations reported in rodent models of TBT exposure. https://doi.org/10.1289/EHP13955.
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Affiliation(s)
- Natalia Pascuali
- Department of Pathology, University of Illinois Chicago, Chicago, Illinois, USA
| | - Yong Pu
- Department of Pathology, University of Illinois Chicago, Chicago, Illinois, USA
| | - Anita A. Waye
- Department of Pathology, University of Illinois Chicago, Chicago, Illinois, USA
| | - Sarah Pearl
- Department of Obstetrics and Gynecology, Sparrow Health System, Lansing, Michigan, USA
| | - Denny Martin
- Department of Obstetrics and Gynecology, Sparrow Health System, Lansing, Michigan, USA
| | - Allison Sutton
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Ariella Shikanov
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Almudena Veiga-Lopez
- Department of Pathology, University of Illinois Chicago, Chicago, Illinois, USA
- The Chicago Center for Health and Environment, University of Illinois Chicago, Chicago, Illinois, USA
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Neff AM, Inman Z, Mourikes VE, Santacruz-Márquez R, Gonsioroski A, Laws MJ, Flaws JA. The role of the aryl hydrocarbon receptor in mediating the effects of mono(2-ethylhexyl) phthalate in mouse ovarian antral follicles†. Biol Reprod 2024; 110:632-641. [PMID: 38134965 PMCID: PMC10993471 DOI: 10.1093/biolre/ioad178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/21/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023] Open
Abstract
Di(2-ethylhexyl) phthalate (DEHP) is a pervasive environmental toxicant used in the manufacturing of numerous consumer products, medical supplies, and building materials. DEHP is metabolized to mono(2-ethylhexyl) phthalate (MEHP). MEHP is an endocrine disruptor that adversely affects folliculogenesis and steroidogenesis in the ovary, but its mechanism of action is not fully understood. Thus, we tested the hypothesis that the aryl hydrocarbon receptor (AHR) plays a functional role in MEHP-mediated disruption of folliculogenesis and steroidogenesis. CD-1 mouse antral follicles were isolated and cultured with MEHP (0-400 μM) in the presence or absence of the AHR antagonist CH223191 (1 μM). MEHP treatment reduced follicle growth over a 96-h period, and this effect was partially rescued by co-culture with CH223191. MEHP exposure alone increased expression of known AHR targets, cytochrome P450 (CYP) enzymes Cyp1a1 and Cyp1b1, and this induction was blocked by CH223191. MEHP reduced media concentrations of estrone and estradiol compared to control. This effect was mitigated by co-culture with CH223191. Moreover, MEHP reduced the expression of the estrogen-sensitive genes progesterone receptor (Pgr) and luteinizing hormone/choriogonadotropin receptor (Lhcgr) and co-treatment with CH223191 blocked this effect. Collectively, these data indicate that MEHP activates the AHR to impair follicle growth and reduce estrogen production and signaling in ovarian antral follicles.
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Affiliation(s)
- Alison M Neff
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Zane Inman
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Vasiliki E Mourikes
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Ramsés Santacruz-Márquez
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Andressa Gonsioroski
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Mary J Laws
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, Urbana, IL, USA
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois, Urbana-Champaign, Urbana, IL, USA
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Naik AQ, Zafar T, Shrivastava VK. The impact of non-caloric artificial sweetener aspartame on female reproductive system in mice model. Reprod Biol Endocrinol 2023; 21:73. [PMID: 37580716 PMCID: PMC10424399 DOI: 10.1186/s12958-023-01115-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/05/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND Artificial sweeteners, used as sugar substitutes have found their ways into almost all the food items due to the notion that they are non-caloric. Aspartame is used in numerous food products throughout the world. The primary users of aspartame include diabetics and calorie conscious people who intend to limit their calorie intake. METHODS Female Swiss albino mice were divided into three groups (12 mice each) for the duration of 30 and 60 days consecutively. The treatment groups received 40 mg/kg b. w. aspartame orally. Hormone assays using ELISA and tissue histopathology have been performed along with the fertility assay to access the treatment outcomeon the fertility of treated mice in comparison to controls. RESULTS Present study reports that female mice treated with aspartame for 30 and 60 days showed significant reduction in body weight, relative organ weight of (liver and kidney) and gonadosomatic index. These changes were more significantly recorded in 60 days treatment group. Aspartame treated animals for 30 and 60 days showed duration-dependent decrease gonandotropins (follicle stimulating hormone and luteinizing hormone), and steroids (estradiol and progesterone). Moreover, severe histopathological changes, reduction in number of growing follicles, degenerative changes in follicular structure, corona radiata and zonagranulosa were also observed. Besides, histomorphological changes were also observed in the uterine structure including atrophic uterine endometrial glands, contracted endometrial lining, disruption of the endometrial structure and the shapes of blood vessels were also altered. CONCLUSION Non-nutritive artificial sweeteners including aspartame negatively impact the function of ovaries and feedback mechanism of reproductive hormones by affecting the hypothalamic-pituitary-gonadal axis. In light of present findings the aspartame negatively impacted the reproductive system of female mice. More studies are required to identify the molecular mechanism and the pathways involved.
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Affiliation(s)
- Ab Qayoom Naik
- Department of Zoology, Govt. Degree College, Paloura Mishriwala, Jammu, J & K, 180018, India.
- Laboratory of Endocrinology, Department of Biosciences, Barkatullah University, Bhopal, M. P, 462026, India.
| | - Tabassum Zafar
- Laboratory of Endocrinology, Department of Biosciences, Barkatullah University, Bhopal, M. P, 462026, India.
| | - Vinoy K Shrivastava
- Laboratory of Endocrinology, Department of Biosciences, Barkatullah University, Bhopal, M. P, 462026, India
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Xavier MC, Martins LP, Moura RM, Morais DF, Barbosa JVL, Figueiredo RA, Peixer MAS, de Andrade RV, Viana JHM. Evaluation of the effects of the recommended oral dose of diflubenzuron on bovine sperm and oocyte quality using CASA and OPU-IVEP. Front Vet Sci 2023; 10:1215722. [PMID: 37496752 PMCID: PMC10366606 DOI: 10.3389/fvets.2023.1215722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
Introduction The aim of this study was to evaluate potential effects of diflubenzuron on the production and quality of gametes, and on in vitro embryo production (IVEP) outcomes, in cattle. Methods Two experiments were performed, the first to evaluate effects on semen, and the second on cumulus-oocyte complexes (COC) and on IVEP. Nelore (Bos taurus indicus) bulls (n = 14) or heifers (n = 16) were allocated into control (CG) or treatment (DIF) groups. All groups received a mineral mix supplement added (DIF) or not (CG) with diflubenzuron (30 mg/head/day), during 8 weeks. Animals were weighed and blood samples were collected throughout the experimental period. Every other week, bulls were subjected to semen collection and heifers to transvaginal ultrasound-guided follicle aspiration sessions. Semen underwent physical and morphological evaluation, and samples were stored for further computer-assisted sperm analysis. The COC recovered were evaluated according to morphology and those classified as viable were sent to an IVEP laboratory. Results Diflubenzuron had no effect (P > 0.05) on average body weight or in any blood hematological or biochemical endpoints, regardless of gender. In experiment 1, there was no difference (P > 0.05) between DIF and CG groups for sperm concentration, morphology, or kinetics. In experiment 2, there was also no effect of diflubenzuron on the number of total, viable, or grade I oocytes, as well as on cleavage or blastocyst rates (P > 0.05). Discussion In summary, the oral administration of diflubenzuron, within the recommended dose, has no short-term negative effects on sperm production and quality or on oocyte yield and developmental potential in vitro, in cattle.
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Affiliation(s)
- Marcelo Cunha Xavier
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
- Bio Biotecnologia da Reprodução Animal, Brasília, DF, Brazil
| | - Leticia Prates Martins
- Programa de Pós-Graduação em Biologia Animal, Universidade de Brasília, Brasília, DF, Brazil
| | - Rodrigo Martins Moura
- Programa de Pós-Graduação em Biologia Animal, Universidade de Brasília, Brasília, DF, Brazil
| | - Divino Fabio Morais
- Departamento de Medicina Veterinária, Centro Universitário de Brasília, Brasília, DF, Brazil
| | - Joao Vitor Lima Barbosa
- Departamento de Medicina Veterinária, Centro Universitário de Brasília, Brasília, DF, Brazil
| | | | | | - Rosangela Vieira de Andrade
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Joao Henrique Moreira Viana
- Programa de Pós-Graduação em Biologia Animal, Universidade de Brasília, Brasília, DF, Brazil
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil
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El Fouikar S, Duranthon V, Helies V, Jammes H, Couturier-Tarrade A, Gayrard V, Van Acker N, Frenois FX, Archilla C, Rousseau-Ralliard D, Gatimel N, Léandri R. Multigenerational Effects of a Complex Human-Relevant Exposure during Folliculogenesis and Preimplantation Embryo Development: The FEDEXPO Study. TOXICS 2023; 11:toxics11050425. [PMID: 37235240 DOI: 10.3390/toxics11050425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023]
Abstract
Animal toxicological studies often fail to mimic the complexity of the human exposome, associating low doses, combined molecules and long-term exposure. Since the reproductive potential of a woman begins in the fetal ovary, the literature regarding the disruption of its reproductive health by environmental toxicants remains limited. Studies draw attention to follicle development, a major determinant for the quality of the oocyte, and the preimplantation embryo, as both of them are targets for epigenetic reprogramming. The "Folliculogenesis and Embryo Development EXPOsure to a mixture of toxicants: evaluation in the rabbit model" (FEDEXPO) project emerged from consideration of these limitations and aims to evaluate in the rabbit model the impacts of an exposure to a mixture of known and suspected endocrine disrupting chemicals (EDCs) during two specific windows, including folliculogenesis and preimplantation embryo development. The mixture combines eight environmental toxicants, namely perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), dichlorodiphenyldichloroethylene (DDE), hexachlorobenzene (HCB), β-hexachlorocyclohexane (β-HCH), 2,2'4,4'-tetrabromodiphenyl ether (BDE-47), di(2-ethylhexyl) phthalate (DEHP) and bisphenol S (BPS), at relevant exposure levels for reproductive-aged women based on biomonitoring data. The project will be organized in order to assess the consequences of this exposure on the ovarian function of the directly exposed F0 females and monitor the development and health of the F1 offspring from the preimplantation stage. Emphasis will be made on the reproductive health of the offspring. Lastly, this multigenerational study will also tackle potential mechanisms for the inheritance of health disruption via the oocyte or the preimplantation embryo.
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Affiliation(s)
- Sara El Fouikar
- ToxAlim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31062 Toulouse, France
| | | | - Virginie Helies
- GenPhySE (Génétique Physiologie et Système d'Elevage), Université de Toulouse, INRAE, ENVT, INPT, 31326 Castanet-Tolosan, France
| | - Hélène Jammes
- BREED INRAE, UVSQ, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | | | - Véronique Gayrard
- ToxAlim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31062 Toulouse, France
| | - Nathalie Van Acker
- Plateforme Imag'IN, Service d'Anatomie Pathologie, Institut Universitaire du Cancer-Oncopole de Toulouse, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France
| | - François-Xavier Frenois
- Plateforme Imag'IN, Service d'Anatomie Pathologie, Institut Universitaire du Cancer-Oncopole de Toulouse, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France
| | | | | | - Nicolas Gatimel
- DEFE (Développement Embryonnaire, Fertilité et Environnement), UMR 1203 Inserm, Universités Toulouse et Montpellier, Toulouse Teaching Hospital Group, 31059 Toulouse, France
- Médecine de la Reproduction, Hôpital Paule de Viguier, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France
| | - Roger Léandri
- ToxAlim (Research Center in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31062 Toulouse, France
- Médecine de la Reproduction, Hôpital Paule de Viguier, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France
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Abdulrahman Alrabiah N, Simintiras CA, Evans ACO, Lonergan P, Fair T. Biochemical alterations in the follicular fluid of bovine peri-ovulatory follicles and association with final oocyte maturation. REPRODUCTION AND FERTILITY 2022; 4:RAF-22-0090. [PMID: 36547396 PMCID: PMC9874974 DOI: 10.1530/raf-22-0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/22/2022] [Indexed: 12/24/2022] Open
Abstract
Follicular fluid (FF), a product of vascular transudate and granulosa and thecal cell secretions, is the milieu that has evolved to support oocyte growth and maturation which plays a central role in oocyte quality determination. Therefore, a suboptimal FF composition may be reflected in compromised oocyte progression through maturation, fertilization or embryo development. To date, the composition of bovine FF remains understudied. To address this, we comprehensively characterized the metabolomic constituency of bovine FF in the period during which the oocyte undergoes meiotic maturation. More specifically, FF from pre (-24 h) and peri (-2 h) -ovulatory follicles was profiled by high-throughput untargeted ultra-high-performance liquid chromatography tandem mass spectroscopy. A total of 634 metabolites were identified, comprising: lipids (37.1%), amino acids (30.0%), xenobiotics (11.5%), nucleotides (6.8%), carbohydrates (4.4%), cofactors and vitamins (4.4%), peptides (3.6%) and energy substrates (2.1%). The concentrations of 67 metabolites were significantly affected by stage of follicle development, 33.3% (n=21) were reduced (P≤0.05) by a mean of 9.0-fold, whereas 46 were elevated (P≤0.05) by a mean of 1.7-fold in peri vs. pre -ovulatory FF. The most pronounced individual metabolite concentration decreases were hypoxanthine (98.9-fold), xanthine (65.7-fold), 17β-oestradiol (12.4-fold), and inosine (4.6-fold). In contrast, the greatest increases were in retinal (4.9-fold), 1-methyl-5-imidazoleacetate (2.7-fold), and isovalerylcarnitine (2.7-fold). This global metabolomic analysis of bovine FF temporal dynamics provides new information for understanding the environment supporting oocyte maturation and facilitating ovulation, that has the potential for improving oocyte quality both in vivo and in vitro.
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Affiliation(s)
- Noof Abdulrahman Alrabiah
- School of Agriculture and Food Science, University College Dublin, Ireland
- Biological Sciences Department, College of Science, King Faisal University, Al Ahsa, Saudi Arabia
| | - Constantine A Simintiras
- School of Animal Sciences, Agricultural Center, Louisiana State University, Baton Rouge, Louisiana, USA
| | | | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Ireland
| | - Trudee Fair
- School of Agriculture and Food Science, University College Dublin, Ireland
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Guo L, Zhao Y, Huan Y. Pterostilbene Alleviates Chlorpyrifos-Induced Damage During Porcine Oocyte Maturation. Front Cell Dev Biol 2022; 9:803181. [PMID: 34993205 PMCID: PMC8724426 DOI: 10.3389/fcell.2021.803181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/30/2021] [Indexed: 12/16/2022] Open
Abstract
Chlorpyrifos (CPF), a widely used organophosphate pesticide, is reported to severely impair mammalian reproductive system. Pterostilbene (PTS), an effective free radical scavenger, is considered as beneficial for mammalian reproduction. However, the toxicity of CPF on oocyte maturation and whether PTS can eliminate the detrimental effect of CPF on oocytes remain unclear. Here, porcine oocytes were applied to investigate the potential effect and possible mechanism of CPF and PTS during oocyte maturation. This work demonstrated that CPF significantly delayed the meiotic progression and decreased the polar body extrusion by disturbing spindle assembly and chromosome alignment and causing DNA damage in oocytes (p < 0.05). And, CPF significantly impaired oocyte cytoplasmic maturation by inducing the high level of reactive oxygen species and decreasing glutathione content (p < 0.05). Moreover, CPF significantly triggered embryo apoptosis and reduced the blastocyst rate and cell number following parthenogenetic activation (p < 0.05). Whereas CPF-exposed oocytes were treated with PTS, these defects caused by CPF were obviously rescued, and oocyte maturation and subsequent embryonic development were also significantly ameliorated (p < 0.05). In conclusion, these results revealed that CPF exerted the toxic effect on porcine oocytes, while PTS effectively alleviated CPF-induced damage on oocytes. This work provides a potential strategy to protect oocyte maturation in mammalian species.
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Affiliation(s)
- Lili Guo
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China.,National Risk Assessment Laboratory for Antimicrobial Resistance of Microorganisms in Animals, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yongda Zhao
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Yanjun Huan
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
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