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Pantos K, Maziotis E, Trypidi A, Grigoriadis S, Agapitou K, Pantou A, Nikolettos K, Kokkini G, Sfakianoudis K, Pomeroy KO, Simopoulou M. The Effect of Open and Closed Oocyte Vitrification Systems on Embryo Development: A Systematic Review and Network Meta-Analysis. J Clin Med 2024; 13:2651. [PMID: 38731179 PMCID: PMC11084263 DOI: 10.3390/jcm13092651] [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: 03/18/2024] [Revised: 04/03/2024] [Accepted: 04/27/2024] [Indexed: 05/13/2024] Open
Abstract
Background/Objectives: Open and closed vitrification systems are commonly employed in oocyte cryopreservation; however, there is limited evidence regarding a comparison of their separate impact on oocyte competence. This study uniquely brings to the literature, data on the effect of open versus closed vitrification systems on laboratory and clinical outcomes, and the effect of cooling and warming rates. Methods: A systematic search of the literature was performed using the databases PubMed/MEDLINE and the Cochrane Central Library, limited to articles published in English up to January 2023. A network meta-analysis was conducted comparing each vitrification system versus fresh oocytes. Results: Twenty-three studies were included. When compared to fresh oocytes, both vitrification devices resulted in lower fertilization rates per MII oocyte retrieved. When comparing the two systems in terms of survival rates, no statistically significant difference was observed. However, interestingly open systems resulted in lower cleavage and blastocyst formation rates per 2 pronuclear (2PN) oocyte compared to fresh controls, while at the same time no statistically significant difference was detected when comparing closed devices with fresh oocytes. Conclusions: In conclusion, closed vitrification systems appear to exert a less detrimental impact on the oocytes' competence, which is reflected in the blastocyst formation rates. Proof of superiority of one system versus the other may lead to standardization, helping to ultimately determine optimal practice in oocyte vitrification.
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Affiliation(s)
- Konstantinos Pantos
- Centre for Human Reproduction, Genesis Athens Clinic, Papanikoli, 15232 Athens, Greece (A.P.)
| | - Evangelos Maziotis
- Centre for Human Reproduction, Genesis Athens Clinic, Papanikoli, 15232 Athens, Greece (A.P.)
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Anna Trypidi
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Sokratis Grigoriadis
- Centre for Human Reproduction, Genesis Athens Clinic, Papanikoli, 15232 Athens, Greece (A.P.)
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Kristi Agapitou
- Centre for Human Reproduction, Genesis Athens Clinic, Papanikoli, 15232 Athens, Greece (A.P.)
| | - Agni Pantou
- Centre for Human Reproduction, Genesis Athens Clinic, Papanikoli, 15232 Athens, Greece (A.P.)
| | - Konstantinos Nikolettos
- Obstetric-Gynecologic Clinic, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Georgia Kokkini
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | | | | | - Mara Simopoulou
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
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Gui Y, Ma X, Xiong M, Wen Y, Cao C, Zhang L, Wang X, Liu C, Zhang H, Huang X, Xiong C, Pan F, Yuan S. Transcriptome analysis of meiotic and post-meiotic spermatogenic cells reveals the potential hub genes of aging on the decline of male fertility. Gene 2024; 893:147883. [PMID: 37839768 DOI: 10.1016/j.gene.2023.147883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/06/2023] [Indexed: 10/17/2023]
Abstract
Genetic and epigenetic changes in sperm caused by male aging may be essential factors affecting semen parameters, but the effects and specific molecular mechanisms of aging on male reproduction have not been fully clarified. In this study, to explore the effect of aging on male fertility and seek the potential molecular etiology, we performed high-throughput RNA-sequencing in isolated spermatogenic cells, including pachytene spermatocytes (marked by the completion of chromosome synapsis) and round spermatids (produced by the separation of sister chromatids) from the elderly and the young men. Functional enrichment analysis of differentially expressed genes (DEGs) in round spermatids between the elderly and young showed that they were significantly enriched in gamete generation, spindle assembly, and cilium movement involved in cell motility. In addition, the expression levels of DEGs in round spermatids (post-meiotic cells) were found to be more susceptible to age. Furthermore, ten genes (AURKA, CCNB1, CDC20, CCNB2, KIF2C, KIAA0101, NR5A1, PLK1, PTTG1, RAD51AP1) were identified to be the hub genes involved in the regulation of sperm quality in the elderly through Protein-Protein Interaction (PPI) network construction and measuring semantic among GO terms and gene products. Our data provide aging-related molecular alterations in meiotic and post-meiotic spermatogenic cells, and the information gained from this study may explain the abnormal aging-related male fertility decline.
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Affiliation(s)
- Yiqian Gui
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Xixiang Ma
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Laboratory Animal Center, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Mengneng Xiong
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yujiao Wen
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Congcong Cao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Liang Zhang
- Department of Medical Genetics, China Medical University, Shenyang, Liaoning 110122, China
| | - Xiaoli Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Chunyan Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Huiping Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Xunbin Huang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Wuhan Tongji Reproductive Hospital, Wuhan, Hubei 430013, China
| | | | - Feng Pan
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Shuiqiao Yuan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Laboratory Animal Center, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
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Ducreux B, Patrat C, Trasler J, Fauque P. Transcriptomic integrity of human oocytes used in ARTs: technical and intrinsic factor effects. Hum Reprod Update 2024; 30:26-47. [PMID: 37697674 DOI: 10.1093/humupd/dmad025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/04/2023] [Indexed: 09/13/2023] Open
Abstract
BACKGROUND Millions of children have been born throughout the world thanks to ARTs, the harmlessness of which has not yet been fully demonstrated. For years, efforts to evaluate the specific effects of ART have focused on the embryo; however, it is the oocyte quality that mainly dictates first and foremost the developmental potential of the future embryo. Ovarian stimulation, cryopreservation, and IVM are sometimes necessary steps to obtain a mature oocyte, but they could alter the appropriate expression of the oocyte genome. Additionally, it is likely that female infertility, environmental factors, and lifestyle have a significant influence on oocyte transcriptomic quality, which may interfere with the outcome of an ART attempt. OBJECTIVE AND RATIONALE The objective of this review is to identify transcriptomic changes in the human oocyte caused by interventions specific to ART but also intrinsic factors such as age, reproductive health issues, and lifestyle. We also provide recommendations for future good practices to be conducted when attempting ART. SEARCH METHODS An in-depth literature search was performed on PubMed to identify studies assessing the human oocyte transcriptome following ART interventions, or in the context of maternal aging, suboptimal lifestyle, or reproductive health issues. OUTCOMES ART success is susceptible to external factors, maternal aging, lifestyle factors (smoking, BMI), and infertility due to endometriosis or polycystic ovary syndrome. Indeed, all of these are likely to increase oxidative stress and alter mitochondrial processes in the foreground. Concerning ART techniques themselves, there is evidence that different ovarian stimulation regimens shape the oocyte transcriptome. The perturbation of processes related to the mitochondrion, oxidative phosphorylation, and metabolism is observed with IVM. Cryopreservation might dysregulate genes belonging to transcriptional regulation, ubiquitination, cell cycle, and oocyte growth pathways. For other ART laboratory factors such as temperature, oxygen tension, air pollution, and light, the evidence remains scarce. Focusing on genes involved in chromatin-based processes such as DNA methylation, heterochromatin modulation, histone modification, and chromatin remodeling complexes, but also genomic imprinting, we observed systematic dysregulation of such genes either after ART intervention or lifestyle exposure, as well as due to internal factors such as maternal aging and reproductive diseases. Alteration in the expression of such epigenetic regulators may be a common mechanism linked to adverse oocyte environments, explaining global transcriptomic modifications. WIDER IMPLICATIONS Many IVF factors and additional external factors have the potential to impair oocyte transcriptomic integrity, which might not be innocuous for the developing embryo. Fortunately, it is likely that such dysregulations can be minimized by adapting ART protocols or reducing adverse exposure.
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Affiliation(s)
- Bastien Ducreux
- Université Bourgogne Franche-Comtés-Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, Dijon, France
| | - Catherine Patrat
- Université de Paris Cité, Faculty of Medicine, Inserm 1016, Paris, France
- Department of Reproductive Biology-CECOS, aphp.centre-Université Paris Cité, Paris, France
| | - Jacquetta Trasler
- Department of Pediatrics, McGill University and Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Human Genetics, McGill University and Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Pharmacology & Therapeutics, McGill University and Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Patricia Fauque
- Université Bourgogne Franche-Comtés-Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, Dijon, France
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction-CECOS, Dijon, France
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Cascante SD, Berkeley AS, Licciardi F, McCaffrey C, Grifo JA. Planned oocyte cryopreservation: the state of the ART. Reprod Biomed Online 2023; 47:103367. [PMID: 37804606 DOI: 10.1016/j.rbmo.2023.103367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 10/09/2023]
Abstract
The objective of this review is to provide an update on planned oocyte cryopreservation. This fertility preservation method increases reproductive autonomy by allowing women to postpone childbearing whilst maintaining the option of having a biological child. Oocyte cryopreservation is no longer considered experimental, and its use has increased dramatically in recent years as more women delay childbearing for personal, professional and financial reasons. Despite increased usage, most patients who have undergone oocyte cryopreservation have not yet warmed their oocytes. Most women who cryopreserve oocytes wait years to use them, and many never use them. Studies have demonstrated that oocyte cryopreservation results in live birth rates comparable with IVF treatment using fresh oocytes, and does not pose additional safety risks to offspring. Based on current evidence, cryopreserving ≥20 mature oocytes at <38 years of age provides a 70% chance of one live birth. However, larger studies from a variety of geographic locations and centre types are needed to confirm these findings. Additional research is also needed to determine the recommended age for oocyte cryopreservation, recommended number of oocytes to cryopreserve, return and discard/non-use rates, cost-effectiveness, and how best to distribute accurate and up-to-date information to potential patients.
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Affiliation(s)
- Sarah Druckenmiller Cascante
- New York University Langone Prelude Fertility Center, 159 East 53(rd) Street, 3(rd) Floor, New York, NY 10022, USA.
| | - Alan S Berkeley
- New York University Langone Prelude Fertility Center, 159 East 53(rd) Street, 3(rd) Floor, New York, NY 10022, USA
| | - Frederick Licciardi
- New York University Langone Prelude Fertility Center, 159 East 53(rd) Street, 3(rd) Floor, New York, NY 10022, USA
| | - Caroline McCaffrey
- New York University Langone Prelude Fertility Center, 159 East 53(rd) Street, 3(rd) Floor, New York, NY 10022, USA
| | - James A Grifo
- New York University Langone Prelude Fertility Center, 159 East 53(rd) Street, 3(rd) Floor, New York, NY 10022, USA
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Bolton VN, Hayden C, Robinson M, Abdo D, Pericleous-Smith A. Human oocyte cryopreservation: revised evidence for practice. HUM FERTIL 2023:1-15. [DOI: 10.1080/14647273.2023.2190987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Kalous J, Aleshkina D. Multiple Roles of PLK1 in Mitosis and Meiosis. Cells 2023; 12:cells12010187. [PMID: 36611980 PMCID: PMC9818836 DOI: 10.3390/cells12010187] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 01/05/2023] Open
Abstract
Cells are equipped with a diverse network of signaling and regulatory proteins that function as cell cycle regulators and checkpoint proteins to ensure the proper progression of cell division. A key regulator of cell division is polo-like kinase 1 (PLK1), a member of the serine/threonine kinase family that plays an important role in regulating the mitotic and meiotic cell cycle. The phosphorylation of specific substrates mediated by PLK1 controls nuclear envelope breakdown (NEBD), centrosome maturation, proper spindle assembly, chromosome segregation, and cytokinesis. In mammalian oogenesis, PLK1 is essential for resuming meiosis before ovulation and for establishing the meiotic spindle. Among other potential roles, PLK1 regulates the localized translation of spindle-enriched mRNAs by phosphorylating and thereby inhibiting the translational repressor 4E-BP1, a downstream target of the mTOR (mammalian target of rapamycin) pathway. In this review, we summarize the functions of PLK1 in mitosis, meiosis, and cytokinesis and focus on the role of PLK1 in regulating mRNA translation. However, knowledge of the role of PLK1 in the regulation of meiosis remains limited.
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Barberet J, Ducreux B, Bruno C, Guilleman M, Simonot R, Lieury N, Guilloteau A, Bourc’his D, Fauque P. Comparison of oocyte vitrification using a semi-automated or a manual closed system in human siblings: survival and transcriptomic analyses. J Ovarian Res 2022; 15:128. [PMID: 36464714 PMCID: PMC9720994 DOI: 10.1186/s13048-022-01064-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/21/2022] [Indexed: 12/07/2022] Open
Abstract
BACKGROUND Indications of oocyte vitrification increased substantially over the last decades for clinical and ethical reasons. A semi-automated vitrification system was recently developed making each act of vitrification reproducible. In this study, we evaluated the efficiency of the semi-automated technique of oocyte vitrification by survival rate, morphometric assessment and resistance to empty micro-injection gesture as compared with a manual method. Additionally, we intended to evaluate transcriptomic consequences of both techniques using single-cell RNA-seq technology. RESULTS Post-warming survival rate, oocyte surfaces and resistance to empty micro-injection were comparable between semi-automated and manual vitrification groups. Both oocyte vitrification techniques showed limited differences in the resulting transcriptomic profile of sibling oocytes since only 5 differentially expressed genes were identified. Additionally, there was no difference in median transcript integrity number or percentage of mitochondrial DNA between the two groups. However, a total of 108 genes were differentially expressed between fresh and vitrified oocytes (FDR < 0.05) and showed over-represented of genes related to important cellular process. CONCLUSIONS Our results provide reassurance about the influence of semi-automation as compared with the manual vitrification method. Concerning oocyte vitrification itself, no tight common transcriptomic signature associated has been observed across studies. TRIAL REGISTRATION NCT03570073.
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Affiliation(s)
- Julie Barberet
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Bastien Ducreux
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France
| | - Céline Bruno
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Magali Guilleman
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Raymond Simonot
- grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Nicolas Lieury
- grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Adrien Guilloteau
- grid.31151.37USMR, Dijon Bourgogne University Hospital, F-21000 Dijon, France
| | - Déborah Bourc’his
- Institut Curie, PSL University, CNRS, INSERM, 26 rue d’Ulm, F-75248 Paris, France
| | - Patricia Fauque
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France ,grid.31151.37Laboratoire de Biologie de la Reproduction, CHU Dijon, BP 77908, 14, rue Gaffarel, 21079 Dijon Cedex, France
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Barberet J, Barry F, Choux C, Guilleman M, Karoui S, Simonot R, Bruno C, Fauque P. What impact does oocyte vitrification have on epigenetics and gene expression? Clin Epigenetics 2020; 12:121. [PMID: 32778156 PMCID: PMC7418205 DOI: 10.1186/s13148-020-00911-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
Children conceived by assisted reproductive technologies (ART) have a moderate risk for a number of adverse events and conditions. The question whether this additional risk is associated with specific procedures used in ART or whether it is related to the intrinsic biological factors associated with infertility remains unresolved. One of the main hypotheses is that laboratory procedures could have an effect on the epigenome of gametes and embryos. This suspicion is linked to the fact that ART procedures occur precisely during the period when there are major changes in the organization of the epigenome. Oocyte freezing protocols are generally considered safe; however, some evidence suggests that vitrification may be associated with modifications of the epigenetic marks. In this manuscript, after describing the main changes that occur during epigenetic reprogramming, we will provide current information regarding the impact of oocyte vitrification on epigenetic regulation and the consequences on gene expression, both in animals and humans. Overall, the literature suggests that epigenetic and transcriptomic profiles are sensitive to the stress induced by oocyte vitrification, and it also underlines the need to improve our knowledge in this field.
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Affiliation(s)
- Julie Barberet
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Fatima Barry
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Cécile Choux
- Gynécologie-Obstétrique, CHU Dijon Bourgogne, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Magali Guilleman
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Sara Karoui
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Raymond Simonot
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Céline Bruno
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
| | - Patricia Fauque
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction, CECOS, 14 rue Gaffarel, 21079 Dijon Cedex, France
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