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Li J, Liu Y, Huang H, Jin L. Cardiovascular health of offspring conceived by assisted reproduction technology: a comprehensive review. Front Cardiovasc Med 2024; 11:1287060. [PMID: 38292241 PMCID: PMC10824981 DOI: 10.3389/fcvm.2024.1287060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/08/2024] [Indexed: 02/01/2024] Open
Abstract
Recently, the use of assisted reproductive technology (ART) has rapidly increased. As a result, an increasing number of people are concerned about the safety of offspring produced through ART. Moreover, emerging evidence suggests an increased risk of cardiovascular disease (CVD) in offspring conceived using ART. In this review, we discuss the epigenetic mechanisms involved in altered DNA methylation, histone modification, and microRNA expression, as well as imprinting disorders. We also summarize studies on cardiovascular changes and other risk factors for cardiovascular disease, such as adverse intrauterine environments, perinatal complications, and altered metabolism following assisted reproductive technology (ART). Finally, we emphasize the epigenetic mechanisms underlying the increased risk of CVD in offspring conceived through ART, which could contribute to the early diagnosis and prevention of CVD in the ART population.
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Affiliation(s)
| | | | - Hefeng Huang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Li Jin
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
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Smith A, Franklin O, Mocanu E, McCallion N, El-Khuffash A. Assessment of myocardial function in infants conceived by assisted reproductive technologies using deformation imaging over the first year of age: A cohort study. Echocardiography 2023. [PMID: 37129268 DOI: 10.1111/echo.15585] [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: 08/28/2022] [Revised: 03/28/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023] Open
Abstract
BACKGROUND AND AIM There is emerging evidence of cardiovascular remodeling and functional impairment in individuals conceived via Assisted Reproductive Technologies (ART). The aim of this study was to serially assess myocardial function and pulmonary hemodynamic measurements in infants conceived via ART over the first year of age and to compare them to a cohort of spontaneously conceived controls. METHODS This was a prospective, observational study. Echocardiography was performed at Day 2, 6 months and 1 year of age. Biventricular function was assessed by deformation analysis. Pulmonary artery acceleration time (PAAT) and left ventricular (LV) eccentricity index (LVEI) provided surrogate measures of pulmonary vascular resistance (PVR). RESULTS Fifty infants conceived via ART were compared to 50 spontaneously conceived controls. There were no differences in baseline infant demographics between the two groups. At 1 year of age right ventricular (RV) basal and RV mid cavity diameters were higher in the ART group. PAATi was lower and LVEI higher in the ART group at 6 months and 1 year. In the ART group, LV global longitudinal strain, LV systolic strain rate, LV early diastolic strain rate and RV free wall strain were lower on Day 2, 6 months, and 1 year of age in comparison to the control group (all p < .05). Within the ART group, on linear regression, maternal age, the type of ART treatment or egg characteristics did not influence PAAT or deformation measurements. CONCLUSION Our findings suggest that greater cardiovascular surveillance of ART conceived infants may be warranted.
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Affiliation(s)
- Aisling Smith
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland
| | - Orla Franklin
- Department of Paediatric Cardiology, Our Lady's Children's Hospital Crumlin, Dublin, Ireland
| | - Edgar Mocanu
- Department of Obstetrics, School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Naomi McCallion
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland
- Department of Paediatrics, School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Afif El-Khuffash
- Department of Neonatology, The Rotunda Hospital, Dublin, Ireland
- Department of Paediatrics, School of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
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Chen H, Zhang L, Yue F, Cui C, Li Y, Zhang Q, Liang L, Meng L, Zhang C. Effects of assisted reproductive technology on gene expression in heart and spleen tissues of adult offspring mouse. Front Endocrinol (Lausanne) 2023; 14:1035161. [PMID: 37065763 PMCID: PMC10098333 DOI: 10.3389/fendo.2023.1035161] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 03/10/2023] [Indexed: 04/18/2023] Open
Abstract
OBJECTIVES Assisted reproductive technology (ART) is an important part of reproductive medicine, whose possible effects on offspring's health have drawn widespread attention in recent years. However, relevant studies are limited to postnatal short-term follow-up and lack of diverse sample sources analysis other than blood. METHODS In this study, a mouse model was used to explore the effects of ART on fetal development and gene expression in the organs of offspring in the adulthood using next-generation sequencing. The sequencing results were then analyzed. RESULTS The results showed that it caused abnormal expression in 1060 genes and 179 genes in the heart and spleen, respectively. Differentially expressed genes (DEGs) in the heart are mainly enriched in RNA synthesis and processing, and the cardiovascular system development also shows enrichment. STRING analysis identified Ccl2, Ptgs2, Rock1, Mapk14, Agt, and Wnt5a as the core interacting factors. DEGs in the spleen are significantly enriched in anti-infection and immune responses, which include the core factors Fos, Jun and Il1r2. Further exploration revealed the abnormal expression of 42 and 5 epigenetic modifiers in the heart and spleen, respectively. The expression of the imprinted genes Dhcr7, Igf2, Mest and Smoc1 decreased in the hearts of ART offspring, and the DNA methylation levels of Igf2- and Mest-imprinting control regions (ICRs) increased abnormally. CONCLUSION In the mouse model, ART can interfere with the gene expression pattern in the heart and spleen of the adult offspring and that these changes are related to the aberrant expression of epigenetic regulators.
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Affiliation(s)
- Huanhuan Chen
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
| | - Lei Zhang
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
| | - Feng Yue
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
| | - Chenchen Cui
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
| | - Yan Li
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
| | - Qingwen Zhang
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
| | - Linlin Liang
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
| | - Li Meng
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
- *Correspondence: Li Meng, ; Cuilian Zhang,
| | - Cuilian Zhang
- Reproductive Medicine Center, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital of Henan University, Zhengzhou, Henan, China
- Henan Joint International Research Laboratory of Reproductive Bioengineering, Zhengzhou, Henan, China
- *Correspondence: Li Meng, ; Cuilian Zhang,
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Meister TA, Soria R, Dogar A, Messerli FH, Paoloni-Giacobino A, Stenz L, Scherrer U, Sartori C, Rexhaj E. Increased Arterial Responsiveness to Angiotensin II in Mice Conceived by Assisted Reproductive Technologies. Int J Mol Sci 2022; 23:13357. [PMID: 36362144 PMCID: PMC9654033 DOI: 10.3390/ijms232113357] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 09/01/2023] Open
Abstract
Since the first report in 1978, the number of individuals conceived by Assisted Reproductive Technologies (ART) has grown incessantly. In parallel, with the recent emergence of possible underlying mechanisms of ART-induced epigenetic changes in the renin-angiotensin system, the cardiovascular repercussions of ART in mice and human offspring (including arterial hypertension, vascular dysfunction, and cardiac remodeling) have become increasingly recognized. Here, we hypothesized that ART may increase arterial responsiveness to angiotensin II (ANG II) by epigenetically modifying the expression of its receptors. To test this hypothesis, we assessed the vasoconstrictor responsiveness to ANG II in isolated aortas from ART and control mice. We also examined ANG II receptor (ATR) type 1 and 2 expression and the promoter methylation of the At1aR, At1bR and At2R genes. We found that the vasoconstrictor response to ANG II was markedly increased in ART mice compared to controls. This exaggerated vasoconstrictor responsiveness in ART mice correlated with a significant increase in the ANG II receptor (ATR) type 1 to ATR type 2 protein expression ratio in the aorta; this was mainly driven by an increase in AT1R expression, and by hypomethylation of two CpG sites located in the At1bR gene promoter leading to increased transcription of the gene. We conclude that in mice, ART increase the vasoconstrictor response to ANG II in the aorta by epigenetically causing an imbalance between the expression of vasoconstrictor (AT1R) and vasodilator (AT2R) ANG II receptors. Unbalanced expression of AT1R and AT2R receptors seems to be a novel mechanism contributing to ART-induced arterial hypertension in mice.
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Affiliation(s)
- Theo Arthur Meister
- Department of Cardiology and Biomedical Research, Inselspital Bern University Hospital, 3010 Bern, Switzerland
| | - Rodrigo Soria
- Department of Cardiology and Biomedical Research, Inselspital Bern University Hospital, 3010 Bern, Switzerland
| | - Afzal Dogar
- Department of Cardiology and Biomedical Research, Inselspital Bern University Hospital, 3010 Bern, Switzerland
- Tropic Biosciences Ltd., Norwich Research Park Innovation Centre, Norwich NR4 7GJ, UK
| | - Franz H. Messerli
- Department of Cardiology and Biomedical Research, Inselspital Bern University Hospital, 3010 Bern, Switzerland
| | | | - Ludwig Stenz
- Department of Genetic Medicine and Development, University of Geneva, 1205 Geneva, Switzerland
| | - Urs Scherrer
- Department of Cardiology and Biomedical Research, Inselspital Bern University Hospital, 3010 Bern, Switzerland
| | - Claudio Sartori
- Department of Internal Medicine, Lausanne University Hospital (CHUV), Faculty of Biology and Medicine, University of Lausanne, 1015 Lausanne, Switzerland
| | - Emrush Rexhaj
- Department of Cardiology and Biomedical Research, Inselspital Bern University Hospital, 3010 Bern, Switzerland
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Fertilization and neonatal outcomes after early rescue intracytoplasmic sperm injection: a retrospective analysis of 16,769 patients. Arch Gynecol Obstet 2022; 306:249-258. [PMID: 35380279 PMCID: PMC9300487 DOI: 10.1007/s00404-022-06445-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 02/09/2022] [Indexed: 01/04/2023]
Abstract
Purpose To evaluate the efficacy and safety of short-term insemination and early-rescue intracytoplasmic sperm injection (ICSI), an approach that rescued oocytes with unclear second polar body 6 h after initial insemination by ICSI (early R-ICSI) to avoid total or near-total fertilization failure in conventional in vitro fertilization (IVF). Methods We performed a retrospective study in 16,769 patients (short-term IVF, n = 12,094; ICSI, n = 3452; early R-ICSI, n = 1223) who received IVF/ICSI treatment in our hospital from January 2009 to October 2018. Fertilization and clinical outcomes were compared among those three groups. Results When considering the R-ICSI embryos in the early R-ICSI group independently, the rates of fertilization and day-3 cleaved embryos in 2PN oocytes were comparable, the rates of fertilization (2PN) and high-quality embryos were lower, whereas the multi-PN fertilization rate (3.27%) was significantly higher than the ICSI group (1.26%). The difference of clinical pregnancy rate between the part of transferred R-ICSI embryos (40.81%) and the ICSI group (44.73%) remained nonsignificant. Furthermore, the rate of congenital birth defects in the early R-ICSI group (0.99%) was not significantly different from those in the short-term IVF (0.76%) and ICSI groups (1.07%). Conclusion Despite the multi-PN fertilization rate, our study highlights early R-ICSI as a safe and effective alternative in assisted reproduction to decrease complete IVF fertilization failure and reduce ICSI utilization. Additional large amount and long-term follow-up studies are needed to further validate the use of early R-ICSI.
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Aljahdali A, Airina RKRI, Velazquez MA, Sheth B, Wallen K, Osmond C, Watkins AJ, Eckert JJ, Smyth NR, Fleming TP. The duration of embryo culture after mouse IVF differentially affects cardiovascular and metabolic health in male offspring. Hum Reprod 2021; 35:2497-2514. [PMID: 33020802 PMCID: PMC7603862 DOI: 10.1093/humrep/deaa205] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/14/2020] [Indexed: 12/26/2022] Open
Abstract
STUDY QUESTION Do the long-term health outcomes following IVF differ depending upon the duration of embryo culture before transfer? SUMMARY ANSWER Using a mouse model, we demonstrate that in male but not female offspring, adverse cardiovascular (CV) health was more likely with prolonged culture to the blastocyst stage, but metabolic dysfunction was more likely if embryo transfer (ET) occurred at the early cleavage stage. WHAT IS KNOWN ALREADY ART associate with increased risk of adverse CV and metabolic health in offspring, and these findings have been confirmed in animal models in the absence of parental infertility issues. It is unclear which specific ART treatments may cause these risks. There is increasing use of blastocyst, versus cleavage-stage, transfer in clinical ART which does not appear to impair perinatal health of children born, but the longer-term health implications are unknown. STUDY DESIGN, SIZE, DURATION Five mouse groups were generated comprising: (i) natural mating (NM)—naturally mated, non-superovulated and undisturbed gestation; (ii) IV-ET-2Cell—in-vivo derived two-cell embryos collected from superovulated mothers, with immediate ET to recipients; (iii) IVF-ET-2Cell—IVF generated embryos, from oocytes from superovulated mothers, cultured to the two-cell stage before ET to recipients; (iv) IV-ET-BL—in-vivo derived blastocysts collected from superovulated mothers, with immediate ET to recipients; (v) IVF-ET-BL—IVF generated embryos, from oocytes from superovulated mothers, cultured to the blastocyst stage before ET to recipients. Both male and female offspring were analysed for growth, CV and metabolic markers of health. There were 8–13 litters generated for each group for analyses; postnatal data were analysed by multilevel random effects regression to take account of between-mother and within-mother variation and litter size. PARTICIPANTS/MATERIALS, SETTINGS, METHODS C57/BL6 female mice (3–4 weeks old) were used for oocyte production; CBA males for sperm with human tubal fluid medium were used for IVF. Embryos were transferred (ET) to MF1 pseudo-pregnant recipients at the two-cell stage or cultured in synthetic oviductal medium enriched with potassium medium to the blastocyst stage before ET. Control in-vivo embryos from C57BL6 × CBA matings were collected and immediately transferred at the two-cell or blastocyst stage. Postnatal assays included growth rate up to 27 weeks; systolic blood pressure (SBP) at 9, 15 and 21 weeks; lung and serum angiotensin-converting enzyme (ACE) activity at time of cull (27 weeks); glucose tolerance test (GTT; 27 weeks); basal glucose and insulin levels (27 weeks); and lipid accumulation in liver cryosections using Oil Red O imaging (27 weeks). MAIN RESULTS AND THE ROLE OF CHANCE Blastocysts formed by IVF developed at a slower rate and comprised fewer cells that in-vivo generated blastocysts without culture (P < 0.05). Postnatal growth rate was increased in all four experimental treatments compared with NM group (P < 0.05). SBP, serum and lung ACE and heart/body weight were higher in IVF-ET-BL versus IVF-ET-2Cell males (P < 0.05) and higher than in other treatment groups, with SBP and lung ACE positively correlated (P < 0.05). Glucose handling (GTT AUC) was poorer and basal insulin levels were higher in IVF-ET-2Cell males than in IVF-ET-BL (P < 0.05) with the glucose:insulin ratio more negatively correlated with body weight in IVF-ET-2Cell males than in other groups. Liver/body weight and liver lipid droplet diameter and density in IVF-ET-2Cell males were higher than in IVF-ET-BL males (P < 0.05). IVF groups had poorer health characteristics than their in-vivo control groups, indicating that outcomes were not caused specifically by background techniques (superovulation, ET). No consistent health effects from duration of culture were identified in female offspring. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Results from experimental animal models cannot be extrapolated to humans. Nevertheless, they are valuable to develop conceptual models, in this case, in the absence of confounding parental infertility, in assessing the safety of ART manipulations. WIDER IMPLICATIONS OF THE FINDINGS The study indicates that longer duration of embryo culture after IVF up to blastocyst before ET leads to increased dysfunction of CV health in males compared with IVF and shorter cleavage-stage ET. However, the metabolic health of male offspring was poorer after shorter versus longer culture duration. This distinction indicates that the origin of CV and metabolic health phenotypes after ART may be different. The poorer metabolic health of males after cleavage-stage ET coincides with embryonic genome activation occurring at the time of ET. STUDY FUNDING/COMPETING INTEREST(S) This work was supported through the European Union FP7-CP-FP Epihealth programme (278418) and FP7-PEOPLE-2012-ITN EpiHealthNet programme (317146) to T.P.F., the Biotechnology and Biological Sciences Research Council (BBSRC) (BB/F007450/1) to T.P.F., and the Saudi government, University of Jeddah and King Abdulaziz University to A.A. The authors have no conflicts of interest to declare.
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Affiliation(s)
- Anan Aljahdali
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK.,University of Jeddah, Jeddah, Saudi Arabia
| | - R K Raja Ili Airina
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
| | - Miguel A Velazquez
- School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
| | - Bhavwanti Sheth
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
| | - Katrina Wallen
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
| | - Clive Osmond
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton SO16 6YD, UK
| | - Adam J Watkins
- Division of Child Health, Obstetrics and Gynaecology, Faculty of Medicine, University of Nottingham, Nottingham NG7 2UH, UK
| | - Judith J Eckert
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
| | - Neil R Smyth
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
| | - Tom P Fleming
- School of Biological Sciences, University of Southampton, Southampton General Hospital, Southampton SO16 6YD, UK
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Ranneva SV, Brusentsev EY, Igonina TN, Ragaeva DS, Rozhkova IN, Ershov NI, Levinson AL, Amstislavsky SY. The Effect of Embryo Culture on Ontogenesis of Mammalian Offspring. Russ J Dev Biol 2020. [DOI: 10.1134/s1062360420060077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Heber MF, Ptak GE. The effects of assisted reproduction technologies on metabolic health and disease†. Biol Reprod 2020; 104:734-744. [PMID: 33330924 PMCID: PMC8023432 DOI: 10.1093/biolre/ioaa224] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/12/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
The increasing prevalence of metabolic diseases places a substantial burden on human health throughout the world. It is believed that predisposition to metabolic disease starts early in life, a period of great susceptibility to epigenetic reprogramming due to environmental insults. Assisted reproductive technologies (ART), i.e., treatments for infertility, may affect embryo development, resulting in multiple adverse health outcomes in postnatal life. The most frequently observed alteration in ART pregnancies is impaired placental nutrient transfer. Moreover, consequent intrauterine growth restriction and low birth weight followed by catch-up growth can all predict future obesity, insulin resistance, and chronic metabolic diseases. In this review, we have focused on evidence of adverse metabolic alterations associated with ART, which can contribute to the development of chronic adult-onset diseases, such as metabolic syndrome, type 2 diabetes, and cardiovascular disease. Due to high phenotypic plasticity, ART pregnancies can produce both offspring with adverse health outcomes, as well as healthy individuals. We further discuss the sex-specific and age-dependent metabolic alterations reflected in ART offspring, and how the degree of interference of a given ART procedure (from mild to more severe manipulation of the egg) affects the occurrence and degree of offspring alterations. Over the last few years, studies have reported signs of cardiometabolic alterations in ART offspring that are detectable at a young age but that do not appear to constitute a high risk of disease and morbidity per se. These abnormal phenotypes could be early indicators of the development of chronic diseases, including metabolic syndrome, in adulthood. The early detection of metabolic alterations could contribute to preventing the onset of disease in adulthood. Such early interventions may counteract the risk factors and improve the long-term health of the individual.
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Affiliation(s)
| | - Grażyna Ewa Ptak
- Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland.,Faculty of Biosciences, University of Teramo, Teramo, Italy
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Hu M, Lou Y, Liu S, Mao Y, Le F, Wang L, Li L, Wang Q, Li H, Lou H, Wang N, Jin F. Altered expression of DNA damage repair genes in the brain tissue of mice conceived by in vitro fertilization. Mol Hum Reprod 2020; 26:141-153. [PMID: 32003796 DOI: 10.1093/molehr/gaaa010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 12/16/2019] [Accepted: 01/08/2020] [Indexed: 12/22/2022] Open
Abstract
Our previous study revealed a higher incidence of gene dynamic mutation in newborns conceived by IVF, highlighting that IVF may be disruptive to the DNA stability of IVF offspring. However, the underlying mechanisms remain unclear. The DNA damage repair system plays an essential role in gene dynamic mutation and neurodegenerative disease. To evaluate the long-term impact of IVF on DNA damage repair genes, we established an IVF mouse model and analyzed gene and protein expression levels of MSH2, MSH3, MSH6, MLH1, PMS2, OGG1, APEX1, XPA and RPA1 and also the amount of H2AX phosphorylation of serine 139 which is highly suggestive of DNA double-strand break (γH2AX expression level) in the brain tissue of IVF conceived mice and their DNA methylation status using quantitative real-time PCR, western blotting and pyrosequencing. Furthermore, we assessed the capacity of two specific non-physiological factors in IVF procedures during preimplantation development. The results demonstrated that the expression and methylation levels of some DNA damage repair genes in the brain tissue of IVF mice were significantly changed at 3 weeks, 10 weeks and 1.5 years of age, when compared with the in vivo control group. In support of mouse model findings, oxygen concentration of in vitro culture environment was shown to have the capacity to modulate gene expression and DNA methylation levels of some DNA damage repair genes. In summary, our study indicated that IVF could bring about long-term alterations of gene and protein expression and DNA methylation levels of some DNA damage repair genes in the brain tissue and these alterations might be resulted from the different oxygen concentration of culture environment, providing valuable perspectives to improve the safety and efficiency of IVF at early embryonic stage and also throughout different life stages.
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Affiliation(s)
- Minhao Hu
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Yiyun Lou
- Department of Gynaecology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou 310007, China
| | - Shuyuan Liu
- Department of Gynaecology, Weifang Maternal and Child Health Hospital, Weifang 261000, China
| | - Yuchan Mao
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Fang Le
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Liya Wang
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Lejun Li
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Qijing Wang
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Hongping Li
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Hangying Lou
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Ning Wang
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China
| | - Fan Jin
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, 1 Xueshi Road, Hangzhou 310006, China.,Women's Reproductive Health Laboratory of Zhejiang Province, Key Laboratory of Reproductive Genetics, Ministry of Education, Hangzhou 310006, China
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10
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Li H, Liu L, Dang M, Zhang W, Liu J. Increased susceptibility of mice obtained from in vitro fertilization to global cerebral ischemia-reperfusion injury: possible role of hydrogen sulphide and its biosynthetic enzymes. Int J Neurosci 2019; 130:533-540. [PMID: 31516045 DOI: 10.1080/00207454.2019.1667797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Aim of the Study: This study was designed to explore the relative susceptibility of in vitro fertilization (IVF)-conceived mice to global cerebral ischemic injury with the possible role of hydrogen sulphide and enzymes responsible for its production.Materials and Methods: IVF was carried to obtain pups, which were allowed to grow to the age of eight weeks. Thereafter, male mice were subjected to 20 min of global ischemia and 24 h of reperfusion. The mice obtained from other groups including normal mating, superovulation but normal mating and normal mating but embryo implantation were also subjected to global ischemia-reperfusion (I/R) injury.Results: IVF-derived mice exhibited significant more injury in response to I/R injury in comparison to other groups assessed in terms of impairment in locomotor activity, development of motor in coordination, neurological severity score, cerebral infarction and apoptosis markers (caspase-3 activity and Bcl-2 expression). Moreover, there was a relative decrease in the brain levels of hydrogen sulphide (H2S) and its biosynthetic enzymes viz. cystathionine-β-synthase and cystathionine-γ-lyase. Interestingly, the levels of H2S and cystathionine-γ-lyase were significantly low in IVF-derived mice in basal conditions also, i.e. before subjecting to I/R injury and these biochemical alterations were associated with the behavioural deficits in mice, even before subjecting to I/R injury.Conclusion: It is concluded that in vitro fertilization-derived mice are more susceptible to global cerebral I/R injury, which may be possibly due to decreased levels of hydrogen sulphide and its biosynthetic enzymes viz., cystathionine-β-synthase and cystathionine-γ-lyase.
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Affiliation(s)
- Hong Li
- Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lijun Liu
- Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Minyan Dang
- Innoscience Research Sdn. Bhd, Subang Jaya, Malaysia
| | - Wenzhi Zhang
- Innoscience Research Sdn. Bhd, Subang Jaya, Malaysia
| | - Jie Liu
- Department of Neurology, The Fourth Hospital of Jinan, Jinan, China
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