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Ahmadi H, Aghebati-Maleki L, Rashidiani S, Csabai T, Nnaemeka OB, Szekeres-Bartho J. Long-Term Effects of ART on the Health of the Offspring. Int J Mol Sci 2023; 24:13564. [PMID: 37686370 PMCID: PMC10487905 DOI: 10.3390/ijms241713564] [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: 08/17/2023] [Revised: 08/29/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Assisted reproductive technologies (ART) significantly increase the chance of successful pregnancy and live birth in infertile couples. The different procedures for ART, including in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), intrauterine insemination (IUI), and gamete intrafallopian tube transfer (GIFT), are widely used to overcome infertility-related problems. In spite of its inarguable usefulness, concerns about the health consequences of ART-conceived babies have been raised. There are reports about the association of ART with birth defects and health complications, e.g., malignancies, high blood pressure, generalized vascular functional disorders, asthma and metabolic disorders in later life. It has been suggested that hormonal treatment of the mother, and the artificial environment during the manipulation of gametes and embryos may cause genomic and epigenetic alterations and subsequent complications in the health status of ART-conceived babies. In the current study, we aimed to review the possible long-term consequences of different ART procedures on the subsequent health status of ART-conceived offspring, considering the confounding factors that might account for/contribute to the long-term consequences.
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Affiliation(s)
- Hamid Ahmadi
- Department of Medical Biology and Central Electron Microscope Laboratory, Medical School, Pécs University, 7624 Pécs, Hungary; (H.A.); (T.C.)
| | - Leili Aghebati-Maleki
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran;
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5165665931, Iran
| | - Shima Rashidiani
- Department of Medical Biochemistry, Medical School, Pécs University, 7624 Pécs, Hungary;
| | - Timea Csabai
- Department of Medical Biology and Central Electron Microscope Laboratory, Medical School, Pécs University, 7624 Pécs, Hungary; (H.A.); (T.C.)
- János Szentágothai Research Centre, Pécs University, 7624 Pécs, Hungary
- Endocrine Studies, Centre of Excellence, Pécs University, 7624 Pécs, Hungary
- National Laboratory of Human Reproduction, 7624 Pécs, Hungary
| | - Obodo Basil Nnaemeka
- Department of Laboratory Diagnostics, Faculty of Health Sciences, Pécs University, 7621 Pécs, Hungary;
| | - Julia Szekeres-Bartho
- Department of Medical Biology and Central Electron Microscope Laboratory, Medical School, Pécs University, 7624 Pécs, Hungary; (H.A.); (T.C.)
- János Szentágothai Research Centre, Pécs University, 7624 Pécs, Hungary
- Endocrine Studies, Centre of Excellence, Pécs University, 7624 Pécs, Hungary
- National Laboratory of Human Reproduction, 7624 Pécs, Hungary
- MTA—PTE Human Reproduction Research Group, 7624 Pecs, Hungary
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2
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Peral-Sanchez I, Hojeij B, Ojeda DA, Steegers-Theunissen RPM, Willaime-Morawek S. Epigenetics in the Uterine Environment: How Maternal Diet and ART May Influence the Epigenome in the Offspring with Long-Term Health Consequences. Genes (Basel) 2021; 13:31. [PMID: 35052371 PMCID: PMC8774448 DOI: 10.3390/genes13010031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022] Open
Abstract
The societal burden of non-communicable disease is closely linked with environmental exposures and lifestyle behaviours, including the adherence to a poor maternal diet from the earliest preimplantation period of the life course onwards. Epigenetic variations caused by a compromised maternal nutritional status can affect embryonic development. This review summarises the main epigenetic modifications in mammals, especially DNA methylation, histone modifications, and ncRNA. These epigenetic changes can compromise the health of the offspring later in life. We discuss different types of nutritional stressors in human and animal models, such as maternal undernutrition, seasonal diets, low-protein diet, high-fat diet, and synthetic folic acid supplement use, and how these nutritional exposures epigenetically affect target genes and their outcomes. In addition, we review the concept of thrifty genes during the preimplantation period, and some examples that relate to epigenetic change and diet. Finally, we discuss different examples of maternal diets, their effect on outcomes, and their relationship with assisted reproductive technology (ART), including their implications on epigenetic modifications.
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Affiliation(s)
- Irene Peral-Sanchez
- Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (D.A.O.); (S.W.-M.)
| | - Batoul Hojeij
- Department Obstetrics and Gynecology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands; (B.H.); (R.P.M.S.-T.)
| | - Diego A. Ojeda
- Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (D.A.O.); (S.W.-M.)
| | - Régine P. M. Steegers-Theunissen
- Department Obstetrics and Gynecology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands; (B.H.); (R.P.M.S.-T.)
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3
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Taher L, Israel S, Drexler HCA, Makalowski W, Suzuki Y, Fuellen G, Boiani M. The proteome, not the transcriptome, predicts that oocyte superovulation affects embryonic phenotypes in mice. Sci Rep 2021; 11:23731. [PMID: 34887460 PMCID: PMC8660899 DOI: 10.1038/s41598-021-03054-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/26/2021] [Indexed: 11/18/2022] Open
Abstract
Superovulation is the epitome for generating oocytes for molecular embryology in mice, and it is used to model medically assisted reproduction in humans. However, whether a superovulated oocyte is normal, is an open question. This study establishes for the first time that superovulation is associated with proteome changes that affect phenotypic traits in mice, whereas the transcriptome is far less predictive. The proteins that were differentially expressed in superovulated mouse oocytes and embryos compared to their naturally ovulated counterparts were enriched in ontology terms describing abnormal mammalian phenotypes: a thinner zona pellucida, a smaller oocyte diameter, increased frequency of cleavage arrest, and defective blastocyst formation, which could all be verified functionally. Moreover, our findings indicate that embryos with such abnormalities are negatively selected during preimplantation, and ascribe these abnormalities to incomplete ovarian maturation during the time of the conventional superovulation, since they could be corrected upon postponement of the ovulatory stimulus by 24 h. Our data place constraints on the common view that superovulated oocytes are suitable for drawing general conclusions about developmental processes, and underscore the importance of including the proteins in a modern molecular definition of oocyte quality.
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Affiliation(s)
- Leila Taher
- Institute of Biomedical Informatics, Graz University of Technology, Stremayrgasse 16/I, 8010, Graz, Austria.
| | - Steffen Israel
- Max Planck Institute for Molecular Biomedicine, Roentgenstrasse 20, 48149, Muenster, Germany
| | - Hannes C A Drexler
- Max Planck Institute for Molecular Biomedicine, Roentgenstrasse 20, 48149, Muenster, Germany
| | - Wojciech Makalowski
- Institute of Bioinformatics, Faculty of Medicine, University of Münster, Niels Stensen Str. 14, 48149, Münster, Germany
| | - Yutaka Suzuki
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Chiba, 277-8562, Japan
| | - Georg Fuellen
- Institute for Biostatistics and Informatics in Medicine and Aging Research (IBIMA), Rostock University Medical Center, Ernst-Heydemann-Strasse 8, 18057, Rostock, Germany.
| | - Michele Boiani
- Max Planck Institute for Molecular Biomedicine, Roentgenstrasse 20, 48149, Muenster, Germany.
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4
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Shahreza FD, Hajian M, Gharagozloo P, Drevet JR, Nasr-Esfahani MH. Impact of vitamin D deficiency on mouse sperm structure and function. Andrology 2020; 8:1442-1455. [PMID: 32421931 DOI: 10.1111/andr.12820] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/11/2020] [Accepted: 05/13/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND In rodents and humans, vitamin D deficiency (VDD) is associated with altered sperm structure and function (primarily decreased motility and morphological abnormalities) that are primarily attributed to VDD-induced hypocalcemia. However, it is suspected that VDD has much more drastic effects on mammalian spermatozoa. OBJECTIVES The purpose of this study was to illustrate that VDD, depending on its severity and duration, can alter sperm nuclear integrity and can also lead to the loss of spermatozoa's ability to support embryonic development. MATERIALS AND METHODS A mouse model of induced VDD combining the action of a vitamin D-deficient diet, UV exposure limitation, and paricalcitol injections; a vitamin D2 analog that catabolizes endogenous vitamin D by increasing the expression of CYP24A, a member of the cytochrome P450 family, has been used to create different grades of VDD. RESULTS We show that the most significant sperm defect recorded concerns the integrity of the paternal nucleus, which is both decondensed and fragmented in moderate-to-severe VDD situations. Consistent with the known consequences of fertilization with DNA-damaged spermatozoa, we show that paternal VDD decreases the ability of spermatozoa to optimally support fertilization and embryonic development. DISCUSSION AND CONCLUSION Given the worldwide high prevalence of VDD in humans, and although obtained in an animal model, the data presented here suggest that subfertile/infertile males may benefit from VDD testing and that attempts to correct serum vitamin D levels could be considered prior to conception, either naturally or through ART.
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Affiliation(s)
- Fatemeh Dehghan Shahreza
- Department of Clinical Science, School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehdi Hajian
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | | | - Joël R Drevet
- GReD Laboratory, Faculty of Medicine, CNRS UMR6293-INSERM U1103-Univesité Clermont Auvergne, Clermont-Ferrand, France
| | - Mohammad Hossein Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
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5
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Mokhtari S, Mahdavi AH, Hajian M, Kowsar R, Varnosfaderani SR, Nasr-Esfahani MH. The attenuation of the toxic effects of LPS on mouse pre-implantation development by alpha-lipoic acid. Theriogenology 2019; 143:139-147. [PMID: 31874366 DOI: 10.1016/j.theriogenology.2019.12.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 12/01/2019] [Accepted: 12/15/2019] [Indexed: 12/19/2022]
Abstract
The present study was conducted to evaluate the effects of alpha-lipoic acid (ALA) on quantitative and qualitative indices of mouse embryos challenged by lipopolysaccharide (LPS). Having determined the effective concentrations of LPS (1 mg/mL) that could reduce blastocyst formation rate by around 50% and the optimal concentration of ALA (10 μM) that could attenuate the toxic effects of LPS on blastocyst formation, the following indices were defined: inner cell mass and trophectoderm cell numbers, blastocyst mitochondrial distribution, ROS and GSH levels, as well as the relative expression of Tlr-4. Nrf-2 and Tnf-RI/P-60 receptor involved in inflammatory pathways. Finally, embryos derived from the experimental and control groups were transferred to synchronized recipients and their implantation rate and post-implantation capacity were determined. Treatment with LPS resulted in an increase in intracellular ROS level (P ≤ 0.05), and remarkable decreases (P ≤ 0.05) in intracellular GSH content, mitochondrial mass, and blastocyst quality. ALA attenuated all the aforementioned negative effects of LPS. The relative expression levels of Nrf-2 and Tnf-RI/P-60 receptor (P ≤ 0.05) significantly increased in response to LPS, and treatment with ALA significantly reduced the relative expression of Tnf-RI/P-60. ALA also improved the post-implantation developmental capacity of embryos treated with LPS. In conclusion, our findings indicate that the reproductive toxicity of LPS could be overcome by ALA treatment. These effects were mainly due to the improvements made in intracellular antioxidant capacity as well as suppression of some inflammatory elements, especially the main receptor of TNF-α, the Tnf-RI/P-60, involved in induction of apoptosis. These observations have important implications for dairy farming and treatment of infertility.
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Affiliation(s)
- Saba Mokhtari
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Amir Hossein Mahdavi
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Mehdi Hajian
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Rasoul Kowsar
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Shiva Rouhollahi Varnosfaderani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.
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6
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Heidari F, Hosseini S, Yeganeh SM, Salehi M. Expression of miR-Let-7a, miR-15a, miR-16-1, and their target genes in fresh and vitrified embryos and its surrounding culture media for noninvasive embryo assessment. J Cell Biochem 2019; 120:19691-19698. [PMID: 31297859 DOI: 10.1002/jcb.29275] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 06/18/2019] [Indexed: 12/31/2022]
Abstract
microRNAs (miRNAs) play a critical role in implantation and development of mouse embryos. In this study, we aim to evaluate the possibility of miRNAs as potential biomarkers in the blastocyst culture to assess embryo quality. We also intend to investigate whether improved clinical outcomes of vitrified embryos agree with altered miRNA expressions. Mouse embryos from in vitro fertilization were vitrified at the two-cell stage. After thawing, the embryos were individually cultured and developed to the blastocyst stage. We used quantitative real-time polymerase chain reaction to evaluate miRNA expression levels in both vitrified and fresh groups, and culture medium (CM). The fibronectin binding assay was performed to examine for blastocyst attachment. The findings showed reduced expressions of miR-16-1 (0.2 ± 0.06) and miR-Let-7a (0.65 ± 0.1) after vitrification compared to fresh embryos. We observed significant upregulation of the target genes Vav3 (4.33 ± 0.25), integrin β-3 (Itg β3; 4.73 ± 0.2), and Bcl2 (2.29 ± 0.16) in the vitrified embryos compared to the fresh groups. Evaluation of blastocyst CM showed upregulation of miR-Let-7a (15.68 ± 0.89), miR-16-1 (16.18 ± 0.75), and miR-15a (13.36 ± 0.73) in the vitrified group in comparison to the fresh blastocysts (P < .05). The expression levels of miR-16-1 (3.28 ± 0.63), miR-15a (5.91 ± 0.38), and miR-Let-7a (9.07 ± 0.6) in CM of the vitrified blastocysts conducted on fibronectin were significantly higher than the fresh group (P < .05).This study showed that vitrification of embryos changes implantation and proliferation biomarkers. In addition, upregulated miRNAs in CM could be potentially used for noninvasive early assessment of embryo quality.
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Affiliation(s)
- Fezzeh Heidari
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sara Hosseini
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,MOM Research Center, Tehran, Iran
| | - Samira M Yeganeh
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Salehi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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7
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Ma Y, Ma Y, Wen L, Lei H, Chen S, Wang X. Changes in DNA methylation and imprinting disorders in E9.5 mouse fetuses and placentas derived from vitrified eight-cell embryos. Mol Reprod Dev 2019; 86:404-415. [PMID: 30680835 DOI: 10.1002/mrd.23118] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/08/2019] [Accepted: 01/20/2019] [Indexed: 01/21/2023]
Abstract
Vitrification is increasingly used in assisted reproductive technology (ART) laboratories worldwide, and potential vitrification-induced risks require further exploration. The effect of vitrification on changes in DNA methylation and imprinting disorders was investigated in E9.5 mouse fetuses and placentas. Fetus and placental tissues were collected from the natural mating (nautural conception [NC]) group, in vitro culture (IVC) group and vitrified embryo transfer (VET) group. The fetal crown-rump length at E9.5 in both the IVC (0.210 ± 0.059 mm) and VET (0.205 ± 0.048 mm) groups was significantly reduced compared with the NC group (0.288 ± 0.083 mm). The global methylation levels of fetuses were decreased in the IVC group compared with the NC group and it was increased after vitrification compared with IVC (p < 0.05), similar to what was observed in the NC group (p > 0.05). The changes could be attributed to the disorders of DNA methyltransferases and ten-eleven translocations. In the IVC and VET fetuses, a majority of maternally expressed genes were upregulated, which repressed fetal growth. Furthermore, vitrification led to a change in the methylation level of KvDMR1, which resulted in the disturbance of gene imprinting. According to our results, vitrification could contribute to increased methylation compared with IVC and contributes to a gene imprinting disorder rather than recovery. Despite the routine use of embryo vitrification in clinical settings, the effect that this procedure may have on genomic imprinting deserves much greater attention.
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Affiliation(s)
- Yuan Ma
- Department of Obstetrics and Gynecology, The Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Yefei Ma
- Department of Obstetrics and Gynecology, The Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Liang Wen
- Department of Obstetrics and Gynecology, The Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Hui Lei
- Department of Obstetrics and Gynecology, The Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Shuqiang Chen
- Department of Obstetrics and Gynecology, The Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi, China
| | - Xiaohong Wang
- Department of Obstetrics and Gynecology, The Reproductive Medicine Center, Tangdu Hospital, Air Force Military Medical University, Xi'an, Shaanxi, China
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8
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Shokrzadeh N, Alivand MR, Abedelahi A, Hessam Shariati MB, Niknafs B. Upregulation of HB-EGF, Msx.1, and miRNA Let-7a by administration of calcitonin through mTOR and ERK1/2 pathways during a window of implantation in mice. Mol Reprod Dev 2018; 85:790-801. [DOI: 10.1002/mrd.23061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 09/12/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Naser Shokrzadeh
- Immunology Research Center, Faculty Of Medicine, Tabriz University of Medical Sciences; Tabriz Iran
| | - Mohammad Reza Alivand
- Department of Medical Genetics; Faculty of Medicine, Tabriz University of Medical Sciences; Tabriz Iran
| | - Ali Abedelahi
- Department of Anatomical Sciences; Faculty of Medicine, Tabriz University of Medical Sciences; Tabriz Iran
| | | | - Behrooz Niknafs
- Department of Anatomical Sciences; Faculty of Medicine, Tabriz University of Medical Sciences; Tabriz Iran
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9
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Effects of superovulation, in vitro fertilization, and oocyte in vitro maturation on imprinted gene Grb10 in mouse blastocysts. Arch Gynecol Obstet 2018; 298:1219-1227. [DOI: 10.1007/s00404-018-4905-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 09/12/2018] [Indexed: 12/12/2022]
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10
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Marshall KL, Rivera RM. The effects of superovulation and reproductive aging on the epigenome of the oocyte and embryo. Mol Reprod Dev 2018; 85:90-105. [PMID: 29280527 DOI: 10.1002/mrd.22951] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/14/2017] [Accepted: 12/19/2017] [Indexed: 12/26/2022]
Abstract
A societal preference of delaying maternal age at first childbirth has increased reliance on assisted reproductive technologies/therapies (ART) to conceive a child. Oocytes that have undergone physiologic aging (≥35 years for humans) are now commonly used for ART, yet evidence is building that suboptimal reproductive environments associated with aging negatively affect oocyte competence and embryo development-although the mechanisms underlying these relationship are not yet well understood. Epigenetic programming of the oocyte occurs during its growth within a follicle, so the ovarian stimulation protocols that administer exogenous hormones, as part of the first step for all ART procedures, may prevent the gamete from establishing an appropriate epigenetic state. Therefore, understanding how oocyte. Therefore, understanding how hormone stimulation and oocyte physiologic age independently and synergistically physiologic age independently and synergistically affect the epigenetic programming of these gametes, and how this may affect their developmental competence, are crucial to improved ART outcomes. Here, we review studies that measured the developmental outcomes affected by superovulation and aging, focusing on how the epigenome (i.e., global and imprinted DNA methylation, histone modifications, and epigenetic modifiers) of gametes and embryos acquired from females undergoing physiologic aging and exogenous ovarian stimulation is affected.
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Affiliation(s)
- Kira L Marshall
- Division of Animal Sciences, University of Missouri, Columbia, Missouri
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11
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Abstract
SummarySuperovulatory response is characterized by a high degree of variability and unpredictability. The aim of the present experimental study was to examine whether the amount of maternal body fat can influence the efficiency of ovarian stimulation with gonadotropins. Female mice of two body condition types, normal and obese, produced in a standardized two-generation model, were subjected to ovarian stimulation using eCG and hCG followed by natural mating. Produced ova and embryos were recovered on day 1 and day 4 of pregnancy respectively, and several quantitative, qualitative and developmental parameters were evaluated in them. The overall response of mouse females with normal and elevated amounts of body fat to superovulation was similar: They produced almost the same numbers of ova and embryos on average. Conversely, a higher number of immature oocytes, non-fertilized mature oocytes and lower-stage zygotes were collected from fat females. In both groups, the majority of fertilized oocytes was able to cleave and reach the higher stages of development. However, in the group of fat mice, a lower number of blastocysts was collected, and these blastocysts showed increased incidence of apoptotic cell death. In conclusion, although the response of normal and fat mice to superovulatory treatment was similar, the quality and developmental capacities of produced ova were lower in the group of fat donors.
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12
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Ghosh J, Coutifaris C, Sapienza C, Mainigi M. Global DNA methylation levels are altered by modifiable clinical manipulations in assisted reproductive technologies. Clin Epigenetics 2017; 9:14. [PMID: 28191261 PMCID: PMC5295214 DOI: 10.1186/s13148-017-0318-6] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 01/25/2017] [Indexed: 01/16/2023] Open
Abstract
Background We analyzed placental DNA methylation levels at repeated sequences (LINE1 elements) and all CCGG sites (the LUMA assay) to study the effect of modifiable clinical or laboratory procedures involved in in vitro fertilization. We included four potential modifiable factors: oxygen tension during embryo culture, fresh embryo transfer vs frozen embryo transfer, intracytoplasmic sperm injection (ICSI) vs conventional insemination or day 3 embryo transfer vs day 5 embryo transfer. Results Global methylation levels differed between placentas from natural conceptions compared to placentas conceived by IVF. Placentas from embryos cultured at 20% oxygen showed significant differences in LINE1 methylation compared to in vivo conceptions, while those from embryos cultured at 5% oxygen, did not have significant differences. In addition, placentas from fresh embryo transfer had significantly different LINE1 methylation compared to placentas from in vivo conceptions, while embryos resulting from frozen embryos were not significantly different from controls. On sex-stratified analysis, only males had significant methylation differences at LINE1 elements stratified for the modifiable factors. As expected, LINE1 methylation was significantly different between males and females in the control population. However, we did not observe sex-specific differences in the IVF group. We validated this sex-specific observation in an additional cohort and in opposite sex IVF twins. Conclusion We show that two clinically modifiable factors (embryo culture in 5 vs 20% oxygen tension and fresh vs frozen embryo transfer) are associated with global placental methylation differences. Interestingly, males appear more vulnerable to such treatment-related global changes in DNA methylation than do females. Electronic supplementary material The online version of this article (doi:10.1186/s13148-017-0318-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jayashri Ghosh
- Center for Research on Reproduction and Women's Health, University of Pennsylvania School of Medicine, Philadelphia, PA 19104 USA
| | - Christos Coutifaris
- Center for Research on Reproduction and Women's Health, University of Pennsylvania School of Medicine, Philadelphia, PA 19104 USA.,Department of Obstetrics & Gynecology, University of Pennsylvania School of Medicine, 3701 Market Street, 8th Floor, Philadelphia, PA 19104 USA
| | - Carmen Sapienza
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140 USA.,Department of Pathology and Laboratory Medicine, Temple University School of Medicine, Philadelphia, PA 19140 USA
| | - Monica Mainigi
- Center for Research on Reproduction and Women's Health, University of Pennsylvania School of Medicine, Philadelphia, PA 19104 USA.,Department of Obstetrics & Gynecology, University of Pennsylvania School of Medicine, 3701 Market Street, 8th Floor, Philadelphia, PA 19104 USA
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13
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Grazul-Bilska AT, Khanthusaeng V, Bass CS, Kaminski SL, Navanukraw C, Redmer DA. Lipid droplets in the ovine uterus during the estrous cycle: Effects of nutrition, arginine, and FSH. Theriogenology 2017; 87:212-220. [DOI: 10.1016/j.theriogenology.2016.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/14/2016] [Accepted: 08/25/2016] [Indexed: 12/20/2022]
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14
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Jafarpour F, Hosseini SM, Ostadhosseini S, Abbasi H, Dalman A, Nasr-Esfahani MH. Comparative dynamics of 5-methylcytosine reprogramming and TET family expression during preimplantation mammalian development in mouse and sheep. Theriogenology 2016; 89:86-96. [PMID: 28043375 DOI: 10.1016/j.theriogenology.2016.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 09/21/2016] [Accepted: 10/10/2016] [Indexed: 01/02/2023]
Abstract
Despite previous assumption that paternal active DNA demethylation is an evolutionary conserved phenomenon in mammals, emerging studies in other species, particularly sheep, do not support this issue. Recently, ten eleven translocation (TET) enzymes have been suggested as intermediates in genome-wide DNA demethylation through the iterative conversion of five methylcytosine (5mC) into 5-hydroxymethylcytosine (5hmC)/5-formylcytosine/5-carboxylcytosine (5caC) derivatives. This study investigated whether TET enzymes and 5mC derivatives are also involved in dynamic reprogramming of early sheep embryos derived by fertilization. Mouse zygotes and developing embryos were considered as control. Obtained results reported substantial differences in dynamics of parent-of-origin-specific patterns of 5mC reprogramming and generation/dilution of 5mC derivatives (5hmC and 5caC) between mouse and sheep early zygotes. Sheep zygotes reported a gradual and insignificant decrease pattern of parental pronucleus 5mC, which was notably replication independent, coincided with gradual generation of 5hmC and 5caC. Although the expression profiles of TET family of enzymes (Tet1, Tet2, and Tet3), with the main exception being Tet2 at later developmental stages, were similar between mouse and sheep developing embryos. In addition, although the expression level of Tet3 was higher than Tet1 and Tet2 in MII oocytes and zygotes in both mouse and sheep, the expression of Tet3 in mouse was higher than sheep in both MII oocytes and zygotes. The contrasting dynamics of 5mC reprogramming between these two species may be associated with the particular evolutionary differences that exist between developmental program of rodents and ruminants, particularly during peri-implantation stages.
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Affiliation(s)
- F Jafarpour
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - S M Hosseini
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - S Ostadhosseini
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - H Abbasi
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran; Department of Biology, Faculty of Science, Nour Danesh Institute of Higher Education, Meymeh, Isfahan, Iran
| | - A Dalman
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - M H Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.
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15
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Derakhshan-Horeh M, Abolhassani F, Jafarpour F, Moini A, Karbalaie K, Hosseini SM, Nasr-Esfahani MH. Vitrification at Day3 stage appears not to affect the methylation status of H19/IGF2 differentially methylated region of in vitro produced human blastocysts. Cryobiology 2016; 73:168-74. [PMID: 27497663 DOI: 10.1016/j.cryobiol.2016.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 05/15/2016] [Accepted: 08/02/2016] [Indexed: 12/25/2022]
Abstract
One of the most widely used assisted reproductive technology (ART) is vitrification. The aim of this study is to evaluate DNA methylation of H19/IGF2 differentially methylation region (DMR) in in vitro produced human blastocysts derived from non-vitrified and vitrified day3 embryos. Day3 embryos derived from ICSI cycles from fertile couples referring for family balancing program were either biopsied or vitrified/warmed and subsequently biopsied. Following biopsy, embryos were cultured to day 5. Day5 blastocysts with desired sex were transferred or vitrified for future use. Blastocysts with un-desired sex were donated for research. The assessment of the embryos was performed in two non-vitrified and vitrified groups. Methylation level of H19/IGF2 DMR was analysed by bisulfite conversion and sequencing at 18 CpG sites (CpGs) located in this region. Results showed that the overall methylated CpGs percentages of this region in the vitrified and non-vitrified groups were 35.3% ± 3.6 and 38.27 ± 4.1%, respectively. The difference between the two groups was not significant. Vitrification of day3 embryo appears to have no adverse effect on DNA methylation status of H19/IGF2 DMR of embryos cultured in vitro to blastocyst stage. These data may have implications for performing frozen embryo cycles transfer instead of fresh embryo transfer cycles, owing to the naturally synchronized uterus and subsequently improved endometrial receptivity in frozen embryo transfer instead of imbalanced hormonal milieu in fresh embryo transfer cycles.
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Affiliation(s)
| | - Farid Abolhassani
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farnoosh Jafarpour
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Centre, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran; Department of Obstetrics and Gynecology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Khadijeh Karbalaie
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Sayyed Morteza Hosseini
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran; Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran; Isfahan Fertility & Infertility Center, Isfahan, Iran.
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16
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Derakhshan-Horeh M, Abolhassani F, Jafarpour F, Moini A, Karbalaie K, Hosseini SM, Ostadhosseini S, Nasr-Esfahani MH. Methylation Status of H19/IGF2 Differentially Methylated Region in in vitro Human Blastocysts Donated by Healthy Couples. IRANIAN BIOMEDICAL JOURNAL 2016; 21:16-23. [PMID: 27432596 PMCID: PMC5141249 DOI: 10.6091/.21.1.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Imprinted genes are a unique subset of few genes that have been differentially methylated region (DMR) in a parental origin-dependent manner during gametogenesis, and these genes are highly protected during pre-implantation epigenetic reprogramming. Several studies have shown that the particular vulnerability of imprinting genes during suboptimal pre- and peri-conception micro-environments often is occurred by assisted reproduction techniques (ART). This study investigated the methylation status of H19/IGF2 DMR at high-quality expanding/expanded human blastocysts donated by healthy individuals to evaluate the risks linked to ART. METHODS Methylation levels of H19/IGF2 DMR were analyzed by bisulfite conversion and sequencing at 18 CpG sites (CpGs) located in this region. RESULTS The overall percentage of methylated CpGs and the proportion of hyper-methylated clones of H19/IGF2 DMR in analyzed blastocysts were 37.85±4.87% and 43.75±5.1%, respectively. For validation of our technique, the corresponding methylation levels of peripheral human lymphocytes were defined (49.52±1.86% and 50%, respectively). CONCLUSIONS Considering the absence of in vivo- produced human embryos, it is not possible to conclude that the methylation found in H19/IGF2 DMR is actually normal or abnormal. Regarding the possible risks associated with ART, the procedures should be optimized in order to at least reduce some of the epigenetic risks.
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Affiliation(s)
| | - Farid Abolhassani
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Farnoosh Jafarpour
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, Academic Center for Education, Culture and Research (ACECR), Isfahan, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Centre, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,Department of Obstetrics and Gynecology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Khadijeh Karbalaie
- Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran; 6Isfahan Fertility and Infertility Center, Isfahan, Iran
| | - Sayyed Morteza Hosseini
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, Academic Center for Education, Culture and Research (ACECR), Isfahan, Iran
| | - Somayyeh Ostadhosseini
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, Academic Center for Education, Culture and Research (ACECR), Isfahan, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, Academic Center for Education, Culture and Research (ACECR), Isfahan, Iran.,Department of Cellular Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran; 6Isfahan Fertility and Infertility Center, Isfahan, Iran.,Isfahan Fertility and Infertility Center, Isfahan, Iran
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17
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Hosseini SM, Nasr-Esfahani MH. What does the cryopreserved oocyte look like? A fresh look at the characteristic oocyte features following cryopreservation. Reprod Biomed Online 2016; 32:377-87. [DOI: 10.1016/j.rbmo.2015.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 11/10/2015] [Accepted: 12/15/2015] [Indexed: 11/26/2022]
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