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Bozdemir N, Kablan T, Altintas MO, Sukur G, Cinar O, Uysal F. Altered DNA methylation and Dnmt expression in obese uterus may cause implantation failure. J Mol Histol 2024:10.1007/s10735-024-10212-6. [PMID: 38850446 DOI: 10.1007/s10735-024-10212-6] [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: 10/28/2023] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Obesity is defined by increased adipose tissue volume and has become a major risk factor for reproduction. Recent studies have revealed a substantial link between obesity and epigenetics. The epigenome is dynamically regulated mainly by DNA methylation. DNA methylation, which is controlled by DNA methyltransferases (Dnmts), has been widely studied because it is essential for imprinting and regulation of gene expression. In our previous study, we showed that the levels of Dnmt1, Dnmt3a and global DNA methylation was dramatically altered in the testis and ovary of high-fat diet (HFD)-induced obese mice. However, the effect of HFD on Dnmts and global DNA methylation in mouse uterus has not yet been demonstrated. Therefore, in the present study, we aimed to evaluate the effect of HFD on the level of Dnmt1, Dnmt3a, Dnmt3b, Dnmt3l and global DNA methylation in uterus. Our results showed that HFD significantly altered the levels of Dnmts and global DNA methylation in the uterus. The total expression of Dnmt1, Dnmt3a and Dnmt3b was significantly upregulated, while level of Dnmt3l and global DNA methylation were dramatically decreased (p < 0.05). Furthermore, we observed that the expression of Dnmt3b and Dnmt3l was significantly increased in endometrium including gland and epithelium (p < 0.05). Although Dnmt3b was the only protein whose expression significantly increased, the level of global DNA methylation and Dnmt3l significantly decreased in stroma and myometrium (p < 0.05). In conclusion, our results show for the first time that obesity dramatically alters global DNA methylation and expression of Dnmts, and decreased DNA methylation and Dnmt expression may cause abnormal gene expression, especially in the endometrium.
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Affiliation(s)
- Nazlican Bozdemir
- Department of Histology and Embryology, Ankara Medipol University School of Medicine, Ankara, 06050, Turkey
| | - Tuba Kablan
- Department of Histology and Embryology, Ankara Medipol University School of Medicine, Ankara, 06050, Turkey
| | - Mehmet Ozgen Altintas
- Department of Physiology, Ankara Medipol University School of Medicine, Ankara, Turkey
- Department of Physiology, Istanbul Medipol University Institute of Health Sciences, Istanbul, Turkey
| | - Gozde Sukur
- Department of Histology and Embryology, Ankara University School of Medicine, Ankara, Turkey
| | - Ozgur Cinar
- Department of Histology and Embryology, Ankara University School of Medicine, Ankara, Turkey
| | - Fatma Uysal
- Department of Histology and Embryology, Ankara Medipol University School of Medicine, Ankara, 06050, Turkey.
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Clain E, Kaizer LK, Sammel MD, Wang J, Homer M, Uhler M, Hoyos LR, Devine K, Polotsky AJ. Mild obesity does not affect perinatal outcome in gestational carrier cycles. Hum Reprod 2024; 39:1316-1322. [PMID: 38636947 DOI: 10.1093/humrep/deae079] [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: 01/04/2024] [Revised: 03/22/2024] [Indexed: 04/20/2024] Open
Abstract
STUDY QUESTION Does BMI of gestational carriers (GCs) affect perinatal outcomes after embryo transfer? SUMMARY ANSWER Overweight and class I obesity in GCs does not affect the rate of good perinatal outcomes. WHAT IS KNOWN ALREADY The use of GCs is increasing, but uniform guidance regarding optimal BMI for GCs is lacking. Women with obesity who conceive without fertility treatment or through autologous or donor in vitro fertilization are at higher risk of adverse maternal and fetal outcomes, but data on obesity in GCs are very limited. STUDY DESIGN, SIZE, DURATION We performed a retrospective cohort study of 1121 GC cycles from January 2015 to December 2020 at US Fertility, the largest national partnership of fertility practices in the USA. PARTICIPANTS/MATERIALS, SETTING, AND METHODS All GC cycles performed at a large network of fertility practices were reviewed. Same-sex partners undergoing co-IVF were excluded. The primary outcome was good perinatal outcome from the first embryo transfer, defined as a singleton live birth at ≥37 weeks of gestation with birth weight between 2500 and 4000 g. Secondary outcome measures included frequencies of live birth, clinical pregnancy, miscarriage, full-term birth, low birth weight, large for gestational age, and cesarean delivery. A generalized linear model (log-binomial) was used for each to compare outcomes across BMI groups using normal BMI (20-24.9 kg/m2) as the reference group. Risk ratios and 95% CIs were estimated for each category group relative to normal BMI. MAIN RESULTS AND THE ROLE OF CHANCE We identified 1121 cycles in which GCs underwent first embryo transfer, of which 263 (23.5%) were in GCs with BMI >30. Demographics and reproductive history for GCs did not differ by BMI groups. The age of intended parents, use of frozen eggs, and fresh embryo transfers were higher with increasing BMI group. There were no statistically significant associations between BMI and good perinatal outcomes, live birth, clinical pregnancy, biochemical, spontaneous abortion, or low birth weight. However, among live births, higher BMI was significantly associated with birth by cesarean (P = 0.015) and large for gestational age infants (P = 0.023). LIMITATIONS, REASONS FOR CAUTION This was a retrospective study, and there may be unmeasured confounders. The number of patients with BMI <20 or ≥35 was small, limiting the power for these groups. We were not able to assess all maternal and fetal outcomes. WIDER IMPLICATIONS OF THE FINDINGS In this study, we did not identify any significant impact of BMI on the chances of having a good perinatal outcome. Prior research studies have been inconsistent and this is the largest study to date. STUDY FUNDING/COMPETING INTEREST(S) No external funding was received for this work. The authors do not have any conflicts of interest to declare. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- E Clain
- Department of Obstetrics and Gynecology, University of Colorado, Aurora, CO, USA
| | - L K Kaizer
- Department of Biostatistics and Informatics, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - M D Sammel
- Department of Obstetrics and Gynecology, University of Colorado, Aurora, CO, USA
- Department of Biostatistics and Informatics, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - J Wang
- Shady Grove Fertility, NY, USA
| | - M Homer
- Reproductive Science Center, CA, USA
| | - M Uhler
- Fertility Centers of Illinois, IL, USA
| | - L R Hoyos
- IVF Florida Reproductive Associates, FL, USA
| | - K Devine
- Shady Grove Fertility, Washington, DC, USA
| | - A J Polotsky
- Department of Obstetrics and Gynecology, University of Colorado, Aurora, CO, USA
- Shady Grove Fertility, Denver, CO, USA
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Xie J, Lu J, Zhang H. Effect of GnRH agonist down-regulation combined with hormone replacement treatment on reproductive outcomes of frozen blastocyst transfer cycles in women of different ages. PeerJ 2024; 12:e17447. [PMID: 38832029 PMCID: PMC11146325 DOI: 10.7717/peerj.17447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/02/2024] [Indexed: 06/05/2024] Open
Abstract
Objective To investigate the effect of GnRH agonist (GnRH-a) down-regulation prior to hormone replacement treatment (HRT) to prepare the endometrium in frozen embryo transfer (FET) cycles in women of different ages. Methods This was a retrospective study, and after excluding patients with adenomyosis, endometriosis, severe endometrial adhesions, polycystic ovary syndrome (PCOS), and repeated embryo implantation failures, a total of 4,091 HRT cycles were collected. Patients were divided into group A (<35 years old) and group B (≥35 years old), and each group was further divided into HRT and GnRHa-HRT groups. The clinical outcomes were compared between groups. Results There was no statistically significant difference in clinical outcomes between the HRT and GnRHa-HRT groups among women aged <35 years. In women of advanced age, higher rates of clinical pregnancy and live birth were seen in the GnRHa-HRT group. Logistic regression analysis showed that female age and number of embryos transferred influenced the live birth rate in FET cycles, and in women aged ≥ 35 years, the use of GnRH-a down-regulation prior to HRT improved pregnancy outcomes. Conclusions In elderly woman without adenomyosis, endometriosis, PCOS, severe uterine adhesions, and RIF, hormone replacement treatment with GnRH agonist for pituitary suppression can improve the live birth rate of FET cycles.
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Affiliation(s)
- Jianghuan Xie
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jieqiang Lu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huina Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
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Schon SB, Cabre HE, Redman LM. The impact of obesity on reproductive health and metabolism in reproductive-age females. Fertil Steril 2024:S0015-0282(24)00270-X. [PMID: 38704081 DOI: 10.1016/j.fertnstert.2024.04.036] [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: 03/14/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
Obesity is a highly prevalent chronic disease that impacts >40% of reproductive-aged females. The pathophysiology of obesity is complex and can be understood simply as a chronic energy imbalance whereby caloric intake exceeds caloric expenditure with an energy surplus stored in adipose tissue. Obesity may be categorized into degrees of severity as well as different phenotypes on the basis of metabolic health and underlying pathophysiology. Obesity and excess adiposity have a significant impact on fertility and reproductive health, with direct effects on the hypothalamic-pituitary-ovarian axis, the ovary and oocyte, and the endometrium. There are significant adverse pregnancy outcomes related to obesity, and excess weight gain before, during, and after pregnancy that can alter the lifelong risk for metabolically unhealthy obesity. Given the high prevalence and pervasive impact of obesity on reproductive health, there is a need for better and individualized care for reproductive-aged females that considers obesity phenotype, underlying pathophysiology, and effective and sustainable interventions to treat obesity and manage weight gain before, during, and after pregnancy.
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Affiliation(s)
- Samantha B Schon
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan.
| | - Hannah E Cabre
- Reproductive Endocrinology and Women's Health Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana
| | - Leanne M Redman
- Reproductive Endocrinology and Women's Health Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana
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Sonigo C, Robin G, Boitrelle F, Fraison E, Sermondade N, Mathieu d'Argent E, Bouet PE, Dupont C, Creux H, Peigné M, Pirrello O, Trombert S, Lecorche E, Dion L, Rocher L, Arama E, Bernard V, Monnet M, Miquel L, Birsal E, Haïm-Boukobza S, Plotton I, Ravel C, Grzegorczyk-Martin V, Huyghe É, Dupuis HGA, Lefebvre T, Leperlier F, Bardet L, Lalami I, Robin C, Simon V, Dijols L, Riss J, Koch A, Bailly C, Rio C, Lebret M, Jegaden M, Fernandez H, Pouly JL, Torre A, Belaisch-Allart J, Antoine JM, Courbiere B. [First-line management of infertile couple. Guidelines for clinical practice of the French College of Obstetricians and Gynecologists 2022]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2024; 52:305-335. [PMID: 38311310 DOI: 10.1016/j.gofs.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 01/25/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVE To update the 2010 CNGOF clinical practice guidelines for the first-line management of infertile couples. MATERIALS AND METHODS Five major themes (first-line assessment of the infertile woman, first-line assessment of the infertile man, prevention of exposure to environmental factors, initial management using ovulation induction regimens, first-line reproductive surgery) were identified, enabling 28 questions to be formulated using the Patients, Intervention, Comparison, Outcome (PICO) format. Each question was addressed by a working group that had carried out a systematic review of the literature since 2010, and followed the Grading of Recommendations Assessment, Development and Evaluation (GRADE®) methodology to assess the quality of the scientific data on which the recommendations were based. These recommendations were then validated during a national review by 40 national experts. RESULTS The fertility work-up is recommended to be prescribed according to the woman's age: after one year of infertility before the age of 35 and after 6months after the age of 35. A couple's initial infertility work-up includes a single 3D ultrasound scan with antral follicle count, assessment of tubal permeability by hysterography or HyFOSy, anti-Mullerian hormone assay prior to assisted reproduction, and vaginal swabbing for vaginosis. If the 3D ultrasound is normal, hysterosonography and diagnostic hysteroscopy are not recommended as first-line procedures. Chlamydia trachomatis serology does not have the necessary performance to predict tubal patency. Post-coital testing is no longer recommended. In men, spermogram, spermocytogram and spermoculture are recommended as first-line tests. If the spermogram is normal, it is not recommended to check the spermogram. If the spermogram is abnormal, an examination by an andrologist, an ultrasound scan of the testicles and hormonal test are recommended. Based on the data in the literature, we are unable to recommend a BMI threshold for women that would contraindicate medical management of infertility. A well-balanced Mediterranean-style diet, physical activity and the cessation of smoking and cannabis are recommended for infertile couples. For fertility concern, it is recommended to limit alcohol consumption to less than 5 glasses a week. If the infertility work-up reveals no abnormalities, ovulation induction is not recommended for normo-ovulatory women. If intrauterine insemination is indicated based on an abnormal infertility work-up, gonadotropin stimulation and ovulation monitoring are recommended to avoid multiple pregnancies. If the infertility work-up reveals no abnormality, laparoscopy is probably recommended before the age of 30 to increase natural pregnancy rates. In the case of hydrosalpinx, surgical management is recommended prior to ART, with either salpingotomy or salpingectomy depending on the tubal score. It is recommended to operate on polyps>10mm, myomas 0, 1, 2 and synechiae prior to ART. The data in the literature do not allow us to systematically recommend asymptomatic uterine septa and isthmoceles as first-line surgery. CONCLUSION Based on strong agreement between experts, we have been able to formulate updated recommendations in 28 areas concerning the initial management of infertile couples.
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Affiliation(s)
- Charlotte Sonigo
- Service de médecine de la reproduction et préservation de la fertilité, hôpital Antoine-Béclère, 157, rue de la Porte-Trivaux, 92140 Clamart, France; Faculté de médecine, université Paris-Sud Saclay, 63, rue Gabriel-Péri, 94270 Le Kremlin-Bicêtre, France
| | - Geoffroy Robin
- Service d'assistance médicale à la procréation et préservation de la fertilité, CHU de Lille, Lille, France
| | - Florence Boitrelle
- Service de biologie de la reproduction, préservation de fertilité, CECOS, CHI de Poissy, Poissy, France; INRAe, ENVA, BREED, UVSQ, université Paris Saclay, Jouy-en Josas, France
| | - Eloïse Fraison
- Département médecine de la reproduction, CHU Lyon, hôpital Femme-Mère-Enfant, 59, boulevard Pinel, 69500 Bron, France
| | - Nathalie Sermondade
- Service de biologie de la reproduction CECOS, hôpital Tenon, AP-HP, Sorbonne université, 75020 Paris, France; Inserm US938, centre de recherche Saint-Antoine, Sorbonne université, 75012 Paris, France
| | - Emmanuelle Mathieu d'Argent
- Service de gynécologie-obstétrique et médecine de la reproduction, Dmu Origyne, hôpital Tenon, GHU Sorbonne université, AP-HP, 4, rue de la Chine, 75020 Paris, France
| | - Pierre-Emmanuel Bouet
- Service de gynécologie-obstétrique, centre hospitalier universitaire d'Angers, 4, rue Larrey, 49000 Angers, France
| | - Charlotte Dupont
- Service de biologie de la reproduction - CECOS, hôpital Tenon, AP-HP, Sorbonne université, 75012 Paris, France
| | - Hélène Creux
- Centre AMP, polyclinique Saint-Roch, 550, avenue du Colonel-André-Pavelet, 34070 Montpellier cedex, France
| | - Maeliss Peigné
- Service de médecine de la reproduction et préservation de la fertilité, hôpital Jean-Verdier-Béclère, avenue du 14-Juillet, Bondy, France
| | - Olivier Pirrello
- Service d'aide médicale à la procréation, centre médicochirurgical obstétrique (CMCO), CHU de Strasbourg, 19, rue Louis-Pasteur, 67303 Schiltigheim, France
| | - Sabine Trombert
- Laboratoire Cerba, 6-11, rue de l'Équerre, 95310 Saint-Ouen L'Aumône, France
| | - Emmanuel Lecorche
- Laboratoire Cerba, 6-11, rue de l'Équerre, 95310 Saint-Ouen L'Aumône, France
| | - Ludivine Dion
- Département de gynécologie-obstétrique et reproduction humaine - CECOS, hôpital Sud, CHU de Rennes, 16, boulevard de Bulgarie, 35000 Rennes, France
| | - Laurence Rocher
- Service de radiologie diagnostique et interventionnelle, site Bicêtre, hôpitaux Paris Sud, 94270 Le Kremlin-Bicêtre, France; Université Paris Sud, 63, rue Gabriel-Péri, 94270 Le Kremlin-Bicêtre, France; Service hospitalier Frédéric-Joliot, imagerie par résonance magnétique médicale et multimodalités, CNRS UMR8081, université Paris Sud, 4, place du Gal-Leclerc, 91401 Orsay cedex, France
| | - Emmanuel Arama
- Service de radiologie diagnostique et interventionnelle, site Bicêtre, hôpitaux Paris Sud, 94270 Le Kremlin-Bicêtre, France; Université Paris Sud, 63, rue Gabriel-Péri, 94270 Le Kremlin-Bicêtre, France; Service hospitalier Frédéric-Joliot, imagerie par résonance magnétique médicale et multimodalités, CNRS UMR8081, université Paris Sud, 4, place du Gal-Leclerc, 91401 Orsay cedex, France
| | - Valérie Bernard
- Service de chirurgie gynécologique, gynécologie médicale et médecine de la reproduction, centre Aliénor d'Aquitaine, CHU Pellegrin, Bordeaux, France
| | - Margaux Monnet
- Département de gynécologie médicale, maternité régionale de Nancy, hôpitaux universitaires de Nancy, Nancy, France
| | - Laura Miquel
- Service d'assistance médicale à la procréation, pôle Femmes-Parents-Enfants, hôpital de la Conception, AP-HM, 147, boulevard Baille, 13005 Marseille, France
| | - Eva Birsal
- Service d'assistance médicale à la procréation, pôle Femmes-Parents-Enfants, hôpital de la Conception, AP-HM, 147, boulevard Baille, 13005 Marseille, France
| | | | - Ingrid Plotton
- Service d'hormonologie, endocrinologie moléculaire et maladies rares, CPBE, groupement hospitalier Lyon-Est, Lyon-Bron, France; Université Claude-Bernard, Lyon 1, Lyon, France; Unité Inserm 1208, Lyon, France
| | - Célia Ravel
- Département de gynécologie-obstétrique et reproduction humaine - CECOS, hôpital Sud, CHU de Rennes, 16, boulevard de Bulgarie, 35000 Rennes, France
| | - Véronika Grzegorczyk-Martin
- Centre d'assistance médicale à la procréation et de préservation de la fertilité, clinique Mathilde, 76100 Rouen, France
| | - Éric Huyghe
- Département d'urologie, hôpital de Rangueil, CHU de Toulouse, Toulouse, France; Service de médecine de la reproduction, hôpital Paule-de-Viguier, CHU de Toulouse, Toulouse, France; Inserm 1203, UMR DEFE, université de Toulouse, université de Montpellier, Montpellier, France
| | - Hugo G A Dupuis
- Service d'urologie et d'andrologie, CHU - hôpitaux de Rouen, CHU Charles-Nicolle, 76031 Rouen, France
| | - Tiphaine Lefebvre
- Service de médecine et biologie de la reproduction - gynécologie médicale, centre hospitalier universitaire de Nantes, 38, boulevard Jean-Monnet, 44093 Nantes, France
| | - Florence Leperlier
- Service de médecine et biologie de la reproduction - gynécologie médicale, centre hospitalier universitaire de Nantes, 38, boulevard Jean-Monnet, 44093 Nantes, France
| | - Léna Bardet
- Service de gynécologie-obstétrique et médecine de la reproduction, Dmu Origyne, hôpital Tenon, GHU Sorbonne université, AP-HP, 4, rue de la Chine, 75020 Paris, France
| | - Imane Lalami
- Service de gynécologie-obstétrique et de médecine de la reproduction, grand hôpital de l'Est Francilien - site de Meaux, 6-8, rue Saint-Fiacre, 77100 Meaux, France
| | - Camille Robin
- Service d'assistance médicale à la procréation et préservation de la fertilité, CHU de Lille, Lille, France
| | - Virginie Simon
- Unité fonctionnelle de gynécologie endocrinienne, service de gynécologie médicale, orthogénie et sexologie, hôpital Jeanne-de-Flandre, CHU de Lille, avenue Eugène-Avinée, 59037 Lille cedex, France
| | - Laura Dijols
- Service de médecine de la reproduction et préservation de la fertilité, hôpital Bretonneau, CHU de Tours, Tours, France
| | - Justine Riss
- Service d'aide médicale à la procréation, centre médicochirurgical obstétrique (CMCO), CHU de Strasbourg, 19, rue Louis-Pasteur, 67303 Schiltigheim, France
| | - Antoine Koch
- Service d'aide médicale à la procréation, centre médicochirurgical obstétrique (CMCO), CHU de Strasbourg, 19, rue Louis-Pasteur, 67303 Schiltigheim, France
| | - Clément Bailly
- Service de biologie de la reproduction CECOS, hôpital Tenon, AP-HP, Sorbonne université, 75020 Paris, France; Inserm US938, centre de recherche Saint-Antoine, Sorbonne université, 75012 Paris, France
| | - Constance Rio
- Service de gynécologie-obstétrique, centre hospitalier universitaire d'Angers, 4, rue Larrey, 49000 Angers, France
| | - Marine Lebret
- Service de gynécologie-obstétrique, CHU Charles-Nicolle, 37, boulevard Gambetta, 76000 Rouen, France
| | - Margaux Jegaden
- Faculté de médecine, université Paris-Sud Saclay, 63, rue Gabriel-Péri, 94270 Le Kremlin-Bicêtre, France; Département de chirurgie gynécologique et obstétrique, hôpital Bicêtre, GHU-Sud, AP-HP, 78, rue du Général-Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - Hervé Fernandez
- Faculté de médecine, université Paris-Sud Saclay, 63, rue Gabriel-Péri, 94270 Le Kremlin-Bicêtre, France; Département de chirurgie gynécologique et obstétrique, hôpital Bicêtre, GHU-Sud, AP-HP, 78, rue du Général-Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - Jean-Luc Pouly
- Service de gynécologie chirurgicale, CHU Estaing, 1, place Lucie-et-Raymond-Aubrac, 63003 Clermont-Ferrand, France
| | - Antoine Torre
- Centre d'assistance médicale à la procréation clinicobiologique, centre hospitalier Sud Francilien Corbeil-Essonnes, 40, avenue Serge-Dassault, 91106 Corbeil-Essonnes, France
| | - Joëlle Belaisch-Allart
- Service de médecine de la reproduction, pôle Femme-Enfant, Centre hospitalier des 4 villes, rue Charles-Lauer, 92210 Saint-Cloud, France
| | - Jean-Marie Antoine
- Service de gynécologie-obstétrique et médecine de la reproduction, Dmu Origyne, hôpital Tenon, GHU Sorbonne université, AP-HP, 4, rue de la Chine, 75020 Paris, France
| | - Blandine Courbiere
- Service d'assistance médicale à la procréation, pôle Femmes-Parents-Enfants, hôpital de la Conception, AP-HM, 147, boulevard Baille, 13005 Marseille, France; IMBE, CNRS, IRD, Aix-Marseille université, Avignon université, Marseille, France.
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Zheng D, Wang Y, Chen L, Zeng L, Li R. Association between body mass index and in vitro fertilization/intra-cytoplasmic sperm injection outcomes: An analysis of 15,124 normal ovarian responders in China. Chin Med J (Engl) 2024; 137:837-845. [PMID: 38494342 PMCID: PMC10997229 DOI: 10.1097/cm9.0000000000002992] [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: 09/19/2023] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND High body mass index (BMI) results in decreased fecundity, and women with high BMI have reduced rates of clinical pregnancy and live birth in in vitro fertilization/intra-cytoplasmic sperm injection (IVF/ICSI). Meanwhile, ovarian responses show great heterogeneity in patients with a high BMI. This study aimed to analyze the effects of a high BMI on IVF/ICSI outcomes in the Chinese female with normal ovarian response. METHODS We performed a retrospective cohort study comprising 15,124 patients from the medical record system of the Reproductive Center of Peking University Third Hospital, with 3530 (23.3%) in the overweight group and 1380 (9.1%) in the obese group, who had a normal ovarian response (5-15 oocytes retrieved) and underwent fresh embryo transfer (ET) cycles from January 2017 to December 2018, followed by linked frozen-thawed embryo transfer (FET) cycles from January 2017 to December 2020. Cumulative live birth rate (CLBR) was used as the primary outcome. Furthermore, a generalized additive model was applied to visually illustrate the curvilinear relationship between BMI and the outcomes. We used a decision tree to identify the specific population where high BMI had the greatest effect on IVF/ICSI outcomes. RESULTS High BMI was associated with poor IVF/ICSI outcomes, both in cumulative cycles and in separate fresh ET or FET cycles. In cumulative cycles, compared with the normal weight group, obesity was correlated with a lower positive pregnancy test rate (adjusted odds ratio [aOR]: 0.809, 95% confidence interval [CI]: 0.682-0.960), lower clinical pregnancy rate (aOR: 0.766, 95% CI: 0.646-0.907), lower live birth rate (aOR: 0.706, 95% CI: 0.595-0.838), higher cesarean section rate (aOR: 2.066, 95% CI: 1.533-2.785), and higher rate of large for gestational age (aOR: 2.273, 95% CI: 1.547-3.341). In the generalized additive model, we found that CLBR declined with increasing BMI, with 24 kg/m 2 as an inflection point. In the decision tree, BMI only made a difference in the population aged ≤34.5 years, with anti-Mullerian hormone >1.395 ng/mL, and the first time for IVF. CONCLUSIONS High BMI was related to poor IVF/ICSI outcomes in women with a normal ovarian response, and CLBR declined with increasing BMI, partly due to suppressed endometrial receptivity. A high BMI had the most negative effect on young women with anticipated positive prognoses.
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Affiliation(s)
- Danlei Zheng
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Yuanyuan Wang
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Lixue Chen
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Lin Zeng
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
| | - Rong Li
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
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Cobo A, Coello A, De Los Santos MJ, Remohi J, Bellver J. Embryo long-term storage does not affect assisted reproductive technologies outcome: analysis of 58,001 vitrified blastocysts over 11 years. Am J Obstet Gynecol 2024:S0002-9378(24)00469-1. [PMID: 38527601 DOI: 10.1016/j.ajog.2024.03.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND Recently, the potential detrimental effect that the duration of storage time may have on vitrified samples has raised some concerns, especially when some studies found an association between cryostorage length and decreased clinical results. OBJECTIVE This study aimed to evaluate the effects of the storage time length of day-5 vitrified blastocysts in 2 study groups: freeze-all cycles and nonelective frozen embryo transfers. STUDY DESIGN This was a retrospective study that included 58,001 vitrified/warmed day-5 blastocysts from 2 different populations, according to the reason for frozen embryo transfer. Elective frozen embryo transfer comprised freeze-all cycles (N=16,615 blastocysts and 16,615 patients) in which only single embryo transfers and only the first frozen embryo transfer were included. The nonelective frozen embryo transfer group included 41,386 embryos from 25,571 patients where frozen embryo transfer took place using supernumerary embryos after fresh embryo transfer. All the possible frozen embryo transfers were included. Both single embryo transfer and double embryo transfers were included. Donor and autologous oocytes were used. The period covered by this study was 11 years. The blastocyst sample was clustered into deciles, which provided specific storage duration categories. The main outcome was the live birth rate, and secondary outcomes were embryo survival, miscarriage, and clinical and ongoing pregnancy rates according to storage duration. The impact of storage time was assessed by univariable analyses in both groups. The comparison was made between each decile and the last one. A multivariable logistic regression analysis was conducted, including the variables with significant association found in the univariate analysis. Student t test and chi-square tests, or an analysis of variance, were used wherever appropriate. P<.05 was considered statistically significant. RESULTS There were statistical differences in baseline characteristics of patients included in the study groups. Storage durations ranged from ≤0.67 to ≥4.34 and from ≤1.8 to ≥34.81 months in freeze-all and nonelective frozen embryo transfer, respectively. Embryo survival did not show statistical differences across the categories of storage time in freeze-all and nonelective frozen embryo transfer groups. Statistical differences were found for the live birth rate across some, but not all, the subgroups of storage duration. The multivariable analysis showed no association between storage time and the live birth rate in both groups (nonsignificant). Blastocyst quality, body mass index, number of retrieved oocytes, endometrial preparation, male factor, and uterine factor were related to the drop in the live birth rate in the freeze-all group (P<.05). In the nonelective frozen embryo transfer group, the variables that showed significant association with the live birth rate were age at retrieval and frozen embryo transfer, type of frozen embryo transfer (single embryo transfer or double embryo transfers), number of retrieved oocytes, body mass index, endometrial preparation, origin of sperm sample, and female factor. CONCLUSION This large study demonstrated no association between storage time and clinical outcome. Other variables, such as the patient's age, embryo quality, body mass index, and etiology, are somewhat responsible for impacting the outcome. This provides evidence for the safety of embryo vitrification, even after long storage periods. This is reassuring for both in vitro fertilization practitioners and patients undergoing frozen embryo transfer of either elective or nonelective embryos.
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Affiliation(s)
- Ana Cobo
- IVIRMA Global Research Alliance, Valencia, Spain; IVI Foundation, Health Research Institute La Fe, Valencia, Spain.
| | - Aila Coello
- IVIRMA Global Research Alliance, Valencia, Spain; IVI Foundation, Health Research Institute La Fe, Valencia, Spain
| | - María J De Los Santos
- IVIRMA Global Research Alliance, Valencia, Spain; IVI Foundation, Health Research Institute La Fe, Valencia, Spain
| | - Jose Remohi
- IVIRMA Global Research Alliance, Valencia, Spain; Department of Pediatrics, Obstetrics and Gynecology, Faculty of Medicine, University of Valencia, Valencia, Spain; IVI Foundation, Health Research Institute La Fe, Valencia, Spain
| | - Jose Bellver
- IVIRMA Global Research Alliance, Valencia, Spain; Department of Pediatrics, Obstetrics and Gynecology, Faculty of Medicine, University of Valencia, Valencia, Spain; IVI Foundation, Health Research Institute La Fe, Valencia, Spain
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8
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Lee HK, Moon KY, Paik H, Jee BC. Factors affecting the ongoing pregnancy rate in women with repeated implantation failure undergoing an endometrial receptivity array. Clin Exp Reprod Med 2023; 50:277-284. [PMID: 37995756 DOI: 10.5653/cerm.2023.06184] [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: 05/24/2023] [Accepted: 07/25/2023] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVE In this retrospective study, we analyzed factors influencing the ongoing pregnancy rate (PR) in women with repeated implantation failure (RIF) undergoing embryo transfer with endometrial receptivity array (ERA). METHODS Eighty-three consecutive personalized embryo transfers (pETs) with ERA, from 54 women with RIF, were selected from June 2020 to April 2022. Vitrified blastocyst transfer was timed based on ERA results. RESULTS The ongoing PR per pET was 33.7%. Using ERA, the endometrium was identified as pre-receptive in 26 cycles, early receptive in 25 cycles, receptive in 31 cycles, and late receptive in one cycle. With cycles categorized into three receptivity phases (pre-receptive, early receptive, or receptive), no significant differences were found in the clinical PR (27.3%, 55.6%, and 40%, respectively) or ongoing PR (9.1%, 55.6%, and 40%, respectively) after a single blastocyst transfer. Similarly, no significant differences were observed in the clinical PR or ongoing PR after the transfer of two or more blastocysts. Among women with ongoing pregnancy relative to those without, age at first pET was significantly lower (35 years vs. 39 years, p=0.001), while blastocyst score (23 vs. 18, p=0.012) and the proportion of blastocyst scores >18 (71.4% vs. 38.9%, p=0.005) were significantly higher. In multiple logistic regression analysis, the woman's age (odds ratio [OR], 0.814; 95% confidence interval [CI], 0.706 to 0.940; p=0.005) and blastocyst score >18 (OR, 3.052; 95% CI, 1.075 to 8.665; p=0.036) were identified as significant factors influencing ongoing pregnancy. CONCLUSION In pET with ERA, ongoing pregnancy was closely associated with woman's age and blastocyst quality.
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Affiliation(s)
| | | | - Haerin Paik
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Byung Chul Jee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
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9
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Sridhar A, Khan D, Moffett RC. The impact of diabetes and obesity on fertility and the potential role of gut hormones as treatment. Diabet Med 2023; 40:e15230. [PMID: 37734917 DOI: 10.1111/dme.15230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/12/2023] [Accepted: 09/17/2023] [Indexed: 09/23/2023]
Abstract
AIMS Alongside its metabolic implications, obesity and associated diabetes impair female reproductive function, causing infertility and polycystic ovarian syndrome (PCOS). Recently, gut hormones and their receptors have been identified in various reproductive organs indicating their potential regulatory effects on reproductive function. This review aims to give an overview of their potential effects. METHODS This review focuses on literature that outlines modifications during obesity, diabetes and related infertility with an emphasis on gut hormones and their therapeutic potential. RESULTS Evidence suggests that bariatric surgery has positive effects on fertility and PCOS where major alterations in metabolism occurs through restoration of gut hormone levels. This is thought to be due to the indirect effect weight loss and regulation of blood glucose has on the hypothalamic-pituitary-ovarian and hypothalamic-pituitary-adrenal axis influencing reproduction. CONCLUSIONS Further research is required to elucidate the cellular mechanisms involved in the direct effects of gut hormone receptor activation on reproductive tissues. Current observations suggest a therapeutic role for gut hormones in infertility/PCOS associated with metabolic pathophysiology.
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Affiliation(s)
- Ananyaa Sridhar
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, UK
| | - Dawood Khan
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, UK
| | - R Charlotte Moffett
- Biomedical Sciences Research Institute, School of Biomedical Sciences, Ulster University, Coleraine, UK
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10
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Liu Y, Ni T, Zhao Q, Cui W, Lan X, Zhou T, Zhang Q, Yan J. Maternal hypercholesterolemia would increase the incidence of embryo aneuploidy in couples with recurrent implantation failure. Eur J Med Res 2023; 28:534. [PMID: 37990245 PMCID: PMC10662148 DOI: 10.1186/s40001-023-01492-x] [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: 05/20/2023] [Accepted: 11/01/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND The association of dyslipidemia with embryo development and pregnancy outcomes is largely unknown, especially in unexplained recurrent implantation failure (uRIF) patients. Here, this study aimed to explore the impact of abnormal blood lipid levels on embryo genetic status and pregnancy outcomes after preimplantation genetic testing for aneuploidy (PGT-A) from a clinical perspective. METHODS This study retrospectively analyzed 502 patients diagnosed as uRIF. They were divided into four groups according to the levels of cholesterol and triglyceride: nonhyperlipidemia group (NonH group), simple hypercholesterolemia group (SHC group), simple hypertriglyceridemia group (SHC group) and mixed hyperlipidemia group (MixH group). At the same time, patients were divided into non-low HDL-C group and low HDL-C group according to their HDL-C level. The outcomes of embryos genetic testing and pregnancy outcomes after PGT-A was analyzed between groups. Binary logistic regression and/or generalized estimating equation (GEE) model were conducted to investigate the association of different types of dyslipidemia with embryonic aneuploidy rate and cumulative live-birth rate. RESULTS 474 women who met the inclusion criteria were divided into four groups: NonH group (N = 349), SHC group (N = 55), SHT group (N = 52) and MixH group (N = 18). Compared with the NonH group, SHC group had a significantly increased rate of embryo aneuploidy [48.3% vs. 36.7%, P = 0.006; adjusted OR (95% confidence interval) = 1.52(1.04-2.22), P = 0.029], as well as a reduced number of good-quality embryos on day 5 or 6 [3.00 ± 2.29 vs. 3.74 ± 2.77, P = 0.033]. The SHC group showed a tendency of a lower cumulative live birth rate (47.0% vs. 40.0%), a lower incidence of good birth outcome (37.2% vs. 34.5%) and a higher risk of clinical pregnancy loss (11.1% vs. 17.9%), but did not reach statistical significance (P > 0.05). The incidences of obstetric or neonatal complications and other adverse events were similar in the four groups. Whether patients have low HDL-C did not differ in pregnancy outcomes. CONCLUSIONS We found that uRIF women with hypercholesterolemia had an increased proportion of aneuploid embryos and a reduced proportion of high-quality embryos, while different types of hyperlipidemia had no correlation with cumulative live birth rate as well as pregnancy and neonatal outcomes.
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Affiliation(s)
- Yang Liu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Tianxiang Ni
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Qing Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Weiran Cui
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Xiangxin Lan
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Tingting Zhou
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Qian Zhang
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Junhao Yan
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
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11
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Mei Y, Wang Y, Ke X, Liang X, Lin Y, Wang F. Does endometrial receptivity array improve reproductive outcomes in euploid embryo transfer cycles? a systematic review. Front Endocrinol (Lausanne) 2023; 14:1251699. [PMID: 37964969 PMCID: PMC10641275 DOI: 10.3389/fendo.2023.1251699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 09/22/2023] [Indexed: 11/16/2023] Open
Abstract
Besides chromosomal normality, endometrial receptivity is an important factor in determining successful pregnancies. Endometrial receptivity array (ERA), a promising endometrial receptivity test, was speculated to improve the reproductive outcomes. However, its effectiveness is controversial in clinical practice. Therefore, we conducted this review to investigate its role in in vitro fertilization (IVF) treatment. To eliminate the interference of embryo quality, we only analyzed studies that originally reported the reproductive outcomes of patients who underwent ERA-guided euploid embryo transfer (EET). Unexpectedly, it revealed that ERA could not optimize the reproductive outcomes in EET cycles, no matter in general infertile population or in patients with a history of previous failed embryo transfers.
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Affiliation(s)
| | | | | | | | - Yonghong Lin
- Department of Reproduction and Infertility, Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Fang Wang
- Department of Reproduction and Infertility, Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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12
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Yin YH, Zhou SY, Lu DF, Chen XP, Liu B, Lu S, Han XD, Wu AH. Higher waist circumference is associated with increased likelihood of female infertility: NHANES 2017-2020 results. Front Endocrinol (Lausanne) 2023; 14:1216413. [PMID: 37937052 PMCID: PMC10627239 DOI: 10.3389/fendo.2023.1216413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/27/2023] [Indexed: 11/09/2023] Open
Abstract
Background Waist circumference can be used as an anthropometric measure to assess central obesity and is easier and more convenient than the waist-to-hip ratio in identifying the risk of obesity and medical problems. Most studies showing an association between obesity and infertility in women have used BMI to measure obesity. Our goal was to examine any potential association between waist circumference and infertility. Methods This cross-sectional study, which formed part of the National Health and Nutrition Examination Survey (NHANES), comprised women ages 18 to 45 between 2017 and 2020. Participants without waist circumference data or information on infertility were removed from the study. The independent relationship between waist circumference and infertility was investigated using weighted binary logistic regression and subgroup analysis. Results We investigated 1509 participants and discovered that the prevalence of infertility rose as the WC trisection rose. (tertile 1, 7.55%; tertile 2, 10.56%; tertile 3, 15.28%; trend < 0.001). Multivariate logistic regression showed that after total adjustment, higher WC levels were associated with an increased likelihood of infertility in women (OR1.02; 95% CI 1.01-1.03), and There was a 2% rise in the incidence of infertility for every unit (cm) increased WC. Subgroup analysis and interaction tests showed no significant dependence of the effects of marital status, diabetes, hypertension, and high cholesterol on the association between WC and infertility (p for all interaction tests > 0.05). The inflection point of the positive non-linear relationship between WC and infertility was 116.6 cm. Conclusion Excessive waist circumference assessment may increase the probability of infertility, and more attention should be paid to the management of waist circumference should be given more attention.
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Affiliation(s)
- Ying-Hua Yin
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Su-Yu Zhou
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Dong-Fang Lu
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiu-Ping Chen
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bo Liu
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangzhou, China
| | - Shan Lu
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Center for Reproductive Medicine, Guangdong Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Xiao-Dong Han
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ai-Hua Wu
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
- Center for Reproductive Medicine, Guangdong Hospital of Traditional Chinese Medicine, Guangzhou, China
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13
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Muhammad T, Wan Y, Lv Y, Li H, Naushad W, Chan WY, Lu G, Chen ZJ, Liu H. Maternal obesity: A potential disruptor of female fertility and current interventions to reduce associated risks. Obes Rev 2023; 24:e13603. [PMID: 37452501 DOI: 10.1111/obr.13603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 05/17/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023]
Abstract
Currently, obesity has achieved epidemic levels in reproductive-aged women with a myriad of consequences. Obesity is susceptible to several reproductive complications that eventually affect fertility rates. These complications originate from the deteriorated quality of oocytes from mothers with obesity, which increases the probability of chromosomal aneuploidy, elevated reactive oxygen species production, compromised embryonic developmental competency, and eventually reduced fertility. Maternal obesity is linked to pregnancy complications such as implantation error, abortion, miscarriage, and early pregnancy loss. This review highlights the adverse effects of maternal obesity on female fertility, with a focus on the mechanistic link between maternal obesity and oocyte quality and discusses possible measures to reduce its associated risks.
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Affiliation(s)
- Tahir Muhammad
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
- Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Jinan, Shandong, 250012, China
- Department of Cell Biology and Anatomy, New York Medical College, 15 Dana Road, Valhalla, NY, 10595, USA
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, 54000, Pakistan
| | - Yanling Wan
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
- Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Jinan, Shandong, 250012, China
| | - Yue Lv
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Hanzhen Li
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
- Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Jinan, Shandong, 250012, China
| | - Wasifa Naushad
- Department of Pathology, Microbiology and Immunology, New York Medical College, 15 Dana Road, Valhalla, NY, 10595, USA
| | - Wai-Yee Chan
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Jinan, Shandong, 250012, China
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Gang Lu
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Jinan, Shandong, 250012, China
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
- Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Jinan, Shandong, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, 999077, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200000, China
| | - Hongbin Liu
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
- Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Jinan, Shandong, 250012, China
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, 999077, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences, China
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14
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McLean S, Boots CE. Obesity and Miscarriage. Semin Reprod Med 2023; 41:80-86. [PMID: 38101448 DOI: 10.1055/s-0043-1777759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Obesity affects nearly 40% of reproductive-aged women and has serious implications for women's overall and reproductive health. Women with an elevated body mass index (BMI) have higher rates of anovulation and irregular menses, lower success with fertility treatment, and significantly higher rates of pregnancy complications, such as hypertension/preeclampsia, gestational diabetes, and preterm delivery. Many studies have also shown an association between obesity and early pregnancy loss. However, the causal association between BMI and miscarriage has not been elucidated, likely due to the multifactorial effects that BMI may have on early pregnancy development. In addition, BMI as an isolated variable fails to capture other relevant confounding health risk factors, such as nutrition, physical activity, and insulin resistance. In this review, we will summarize the current literature demonstrating the association between BMI and miscarriage, highlight the research that attempts to explain the association, and finally provide data on therapeutic interventions to improve reproductive outcomes in women suffering from obesity and early pregnancy loss.
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Affiliation(s)
- Samantha McLean
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Christina E Boots
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Northwestern University, Chicago, Illinois
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15
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Liu F, Li Y, Ye Z, Jiang X, Liu R, Li Z, Ma C. The predictive value of preoperative luteinizing hormone to follicle stimulating hormone ratio for ovulation abnormalities recovery after laparoscopic sleeve gastrectomy: A prospective cohort study. Front Endocrinol (Lausanne) 2023; 13:1043173. [PMID: 36686491 PMCID: PMC9849597 DOI: 10.3389/fendo.2022.1043173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/16/2022] [Indexed: 01/06/2023] Open
Abstract
Introduction Obesity-related ovulation abnormalities (OA) affect fertility. LSG is the most frequent bariatric operation. However, no research has identified a reliable indicator for predicting OA recovery after LSG. The purpose of this research was to examine the prognostic usefulness of preoperative the luteinizing hormone (LH) to follicle-stimulating hormone (FSH) ratio (LFR). Methods Our department conducted a prospective study from 2016 to 2021. Venous blood was typically tested 3 days before surgery to get the preoperative LFR. Descriptive data, preoperative and postoperative variables were also collected. Binary logistic regression related preoperative LFR with OA recovery. The receiver operating characteristic (ROC) curve evulated preoperative LFR's predictive capability. Results A total of 157 women with a complete follow-up of one year were included. LFR was the only factor linked with OA (P < 0.001). AUC (area under the ROC curve) = 0.915, cutoff = 1.782, sensitivity = 0.93, and specificity = 0.82. Discussion Overall, LSG has a favorable surgical result, with a %TWL of 66.082 ± 12.012 at 12 months postoperatively. Preoperative sexual hormone levels, as expressed by LFR, has the potential to predict the fate of OA following LSG at one year post-operatively.
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Affiliation(s)
- Fashun Liu
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yue Li
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhenxiong Ye
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaohua Jiang
- Department of General Surgery, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ruichen Liu
- Binhai College, Nankai University, Tianjin, China
| | - Zhen Li
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chiye Ma
- Department of General Surgery, East Hospital, Tongji University School of Medicine, Shanghai, China
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16
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Gautam D, Purandare N, Maxwell CV, Rosser ML, O'Brien P, Mocanu E, McKeown C, Malhotra J, McAuliffe FM. The challenges of obesity for fertility: A FIGO literature review. Int J Gynaecol Obstet 2023; 160 Suppl 1:50-55. [PMID: 36635080 PMCID: PMC10107441 DOI: 10.1002/ijgo.14538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Obesity has been linked to infertility through several mechanisms, including at a molecular level. Those living with obesity face additional barriers to accessing fertility treatments and achieving a successful pregnancy, which can contribute to their economic and psychosocial stressors. There is scope to further improve care for people living with obesity and infertility with empathy, via a multidisciplinary approach.
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Affiliation(s)
- Divya Gautam
- Department of Obstetrics and Gynecology, University Hospital Galway, National University of Ireland, Galway, Ireland
| | - Nikhil Purandare
- Department of Obstetrics and Gynecology, University Hospital Galway, National University of Ireland, Galway, Ireland
| | - Cynthia V Maxwell
- Maternal Fetal Medicine, Sinai Health and Women's College Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Mary L Rosser
- Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York, New York, USA
| | - Patrick O'Brien
- Institute for Women's Health, University College London, London, UK
| | - Edgar Mocanu
- RCSI Department of Reproductive Medicine, Rotunda Hospital, Dublin, Ireland
| | - Ciaran McKeown
- Department of Obstetrics and Gynecology, University Hospital Galway, National University of Ireland, Galway, Ireland
| | - Jaideep Malhotra
- Malhotra Nursing and Maternity Home, Agra, India.,Rainbow Hospital, Agra, India
| | - Fionnuala M McAuliffe
- UCD Perinatal Research Centre, School of Medicine, University College Dublin, National Maternity Hospital, Dublin, Ireland
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17
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Di Berardino C, Peserico A, Capacchietti G, Zappacosta A, Bernabò N, Russo V, Mauro A, El Khatib M, Gonnella F, Konstantinidou F, Stuppia L, Gatta V, Barboni B. High-Fat Diet and Female Fertility across Lifespan: A Comparative Lesson from Mammal Models. Nutrients 2022; 14:nu14204341. [PMID: 36297035 PMCID: PMC9610022 DOI: 10.3390/nu14204341] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 11/18/2022] Open
Abstract
Female reproduction focuses mainly on achieving fully grown follicles and competent oocytes to be successfully fertilized, as well as on nourishing the developing offspring once pregnancy occurs. Current evidence demonstrates that obesity and/or high-fat diet regimes can perturbate these processes, leading to female infertility and transgenerational disorders. Since the mechanisms and reproductive processes involved are not yet fully clarified, the present review is designed as a systematic and comparative survey of the available literature. The available data demonstrate the adverse influences of obesity on diverse reproductive processes, such as folliculogenesis, oogenesis, and embryo development/implant. The negative reproductive impact may be attributed to a direct action on reproductive somatic and germinal compartments and/or to an indirect influence mediated by the endocrine, metabolic, and immune axis control systems. Overall, the present review highlights the fragmentation of the current information limiting the comprehension of the reproductive impact of a high-fat diet. Based on the incidence and prevalence of obesity in the Western countries, this topic becomes a research challenge to increase self-awareness of dietary reproductive risk to propose solid and rigorous preventive dietary regimes, as well as to develop targeted pharmacological interventions.
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Affiliation(s)
- Chiara Di Berardino
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Alessia Peserico
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Correspondence:
| | - Giulia Capacchietti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Alex Zappacosta
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Nicola Bernabò
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, A. Buzzati-Traverso Campus, via E. Ramarini 32, Monterotondo Scalo, 00015 Rome, Italy
| | - Valentina Russo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Annunziata Mauro
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Mohammad El Khatib
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Francesca Gonnella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Fani Konstantinidou
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Liborio Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Valentina Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Barbara Barboni
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
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18
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Obese women exhibit reduced serum progesterone levels on the day of embryo transfer in artificially prepared cycles involving administration of vaginal progesterone. Reprod Biomed Online 2022; 45:679-687. [DOI: 10.1016/j.rbmo.2022.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 11/20/2022]
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Abstract
PURPOSE OF REVIEW To summarize recent findings related to the risk of miscarriage in women with elevated BMI undergoing IVF, and the mechanisms involved in said risk. RECENT FINDINGS Miscarriage rates are increased in overweight and obese women in both natural and assisted reproduction. Oocyte and embryo quality assessed according to classic morphological static parameters does not seem to be affected by excessive female body weight. Despite the initial lack of consensus between studies regarding embryo morphokinetics in obese women, blastocyst formation and quality have recently been shown to be similar across BMI groups, even in the case of euploid embryos. However, some metabolomic differences have been described in oocytes and embryos from obese women, thus pointing to a functional alteration. In women with elevated BMI, the percentage of aneuploid embryos is similar to that of normal weight women, and rates of miscarriage are higher, despite the transfer of euploid embryos. Therefore, the origin of the increased pregnancy loss rate after IVF in these women may be related to metabolomic, epigenetic or mitochondrial oocyte and embryo disturbances, or to the abnormal endocrine, metabolic and inflammatory uterine environment induced by obesity, which seems to be also responsible for other numerous complications during pregnancy and the in-utero fetal programming of postnatal diseases. A displacement of the window of implantation in obese women undergoing artificial endometrial preparation has recently been described and may be related to the poorer embryo implantation rates and increased risk of miscarriage observed following fresh and frozen embryo transfers with autologous oocytes, and with donated ova in recipients with extremely high BMI. SUMMARY Female obesity is related to poorer outcome in natural and assisted conception, including an increased risk of miscarriage. Embryo morphology, assessed by conventional methods or by morphokinetics, does not seem to be affected by excess weight, with similar blastocyst formation and quality than normal weight women reported in IVF cycles. Embryo aneuploidy is not increased, and higher miscarriages rates are seen after euploid embryo transfer in obese women. Disturbances of the uterus or its environment induced by female obesity seem to be the most likely cause of the increased risk of miscarriage, although metabolomic, epigenetic or mitochondrial oocyte and embryo dysfunction cannot be ruled out as cannot congenital anomalies. In the context of all the above, weight reduction before pregnancy should be advised in obese women trying to become pregnant.
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20
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Yang T, Zhao J, Liu F, Li Y. Lipid metabolism and endometrial receptivity. Hum Reprod Update 2022; 28:858-889. [PMID: 35639910 DOI: 10.1093/humupd/dmac026] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/27/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Obesity has now been recognized as a high-risk factor for reproductive health. Although remarkable advancements have been made in ART, a considerable number of infertile obese women still suffer from serial implantation failure, despite the high quality of embryos transferred. Although obesity has long been known to exert various deleterious effects on female fertility, the underlying mechanisms, especially the roles of lipid metabolism in endometrial receptivity, remain largely elusive. OBJECTIVE AND RATIONALE This review summarizes current evidence on the impacts of several major lipids and lipid-derived mediators on the embryonic implantation process. Emerging methods for evaluating endometrial receptivity, for example transcriptomic and lipidomic analysis, are also discussed. SEARCH METHODS The PubMed and Embase databases were searched using the following keywords: (lipid or fatty acid or prostaglandin or phospholipid or sphingolipid or endocannabinoid or lysophosphatidic acid or cholesterol or progesterone or estrogen or transcriptomic or lipidomic or obesity or dyslipidemia or polycystic ovary syndrome) AND (endometrial receptivity or uterine receptivity or embryo implantation or assisted reproductive technology or in vitro fertilization or embryo transfer). A comprehensive literature search was performed on the roles of lipid-related metabolic pathways in embryo implantation published between January 1970 and March 2022. Only studies with original data and reviews published in English were included in this review. Additional information was obtained from references cited in the articles resulting from the literature search. OUTCOMES Recent studies have shown that a fatty acids-related pro-inflammatory response in the embryo-endometrium boundary facilitates pregnancy via mediation of prostaglandin signaling. Phospholipid-derived mediators, for example endocannabinoids, lysophosphatidic acid and sphingosine-1-phosphate, are associated with endometrial receptivity, embryo spacing and decidualization based on evidence from both animal and human studies. Progesterone and estrogen are two cholesterol-derived steroid hormones that synergistically mediate the structural and functional alterations in the uterus ready for blastocyst implantation. Variations in serum cholesterol profiles throughout the menstrual cycle imply a demand for steroidogenesis at the time of window of implantation (WOI). Since 2002, endometrial transcriptomic analysis has been serving as a diagnostic tool for WOI dating. Numerous genes that govern lipid homeostasis have been identified and, based on specific alterations of lipidomic signatures differentially expressed in WOI, lipidomic analysis of endometrial fluid provides a possibility for non-invasive diagnosis of lipids alterations during the WOI. WIDER IMPLICATIONS Given that lipid metabolic dysregulation potentially plays a role in infertility, a better understanding of lipid metabolism could have significant clinical implications for the diagnosis and treatment of female reproductive disorders.
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Affiliation(s)
- Tianli Yang
- Reproductive Medicine Center, Xiangya Hospital of Central South University, Changsha, P.R. China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, P.R. China
| | - Jing Zhao
- Reproductive Medicine Center, Xiangya Hospital of Central South University, Changsha, P.R. China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, P.R. China
| | - Feng Liu
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Key Laboratory of Diabetes Immunology, Ministry of Education, The Second Xiangya Hospital of Central South University, Changsha, P.R. China
| | - Yanping Li
- Reproductive Medicine Center, Xiangya Hospital of Central South University, Changsha, P.R. China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, P.R. China
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21
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Wu YK, Su WL, Yang MC, Chen SY, Wu CW, Lan CC. Associations Between Physical Activity, Smoking Status, and Airflow Obstruction and Self-Reported COPD: A Population-Based Study. Int J Chron Obstruct Pulmon Dis 2022; 17:1195-1204. [PMID: 35620350 PMCID: PMC9128642 DOI: 10.2147/copd.s337683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 05/01/2022] [Indexed: 11/29/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is a preventable and treatable disease with an increased mortality rate in recent years, mainly caused by exposure to tobacco smoke. Regular physical activity is thought to diminish the risk of COPD exacerbation, while very few studies investigate the interaction between smoking and physical activity on COPD development. This study aims to investigate the association between smoking status, physical activity and prevalent COPD. Methods This study analyzed data of adults 20 to 79 years old from the National Health and Nutrition Examination Survey (NHANES) 2007–2012. Results A total of 6404 participants aged 20–79 were included and divided into four groups by their physical activity levels and smoking status. Amongst, 2819 (43.7%) were physically active non-smokers, 957 (14.8%) were physically inactive non-smokers, 1952 (30.3%) were physically active smokers, and 717 (11.1%) were physically inactive smokers. Prevalence of airflow obstruction were 5.7%, 7.1%, 17.7% and 18.6%, respectively. After adjustment, physically active smokers (aOR=2.71, 95% CI=1.94–3.80) and physically inactive smokers (aOR=2.70, 95% CI=1.78–4.09) but not physically active non-smokers were more likely to have airflow obstruction than physically active non-smokers. These associations were similar among most subgroups by age, sex, or BMI. Among smokers, being physically inactive was not significantly associated with a greater chance for prevalent airflow obstruction than being physically active. Conclusion Smokers, regardless of their physical activity level, are more likely to have airflow obstruction as compared with physically active non-smokers. Within smokers, being physically inactive poses no excess chance to be airflow obstructed. The findings indicate that physical activity level seem not altering the relationship between smoking and airflow obstruction.
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Affiliation(s)
- Yao-Kuang Wu
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
- School of Medicine, Tzu-Chi University, Hualien, Taiwan
| | - Wen-Lin Su
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
- School of Medicine, Tzu-Chi University, Hualien, Taiwan
| | - Mei-Chen Yang
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
- School of Medicine, Tzu-Chi University, Hualien, Taiwan
| | - Sin-Yi Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Chih-Wei Wu
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Chou-Chin Lan
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
- School of Medicine, Tzu-Chi University, Hualien, Taiwan
- Correspondence: Chou-Chin Lan, Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 289, Jianguo Road, Xindian Dist., New Taipei City, Taiwan, Tel +886-2-66289779 ext 5709, Fax +886-2-66289009, Email
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22
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Bellver J, Brandão P, Alegre L, Meseguer M. Blastocyst formation is similar in obese and normal weight women: a morphokinetic study. Hum Reprod 2021; 36:3062-3073. [PMID: 34601596 DOI: 10.1093/humrep/deab212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/25/2021] [Indexed: 12/23/2022] Open
Abstract
STUDY QUESTION Does the embryo cleavage pattern and rate of blastocyst formation differ between normal weight and obese women undergoing IVF? SUMMARY ANSWER Embryo morphokinetic development, final blastocyst formation rate and blastocyst morphology do not differ between obese and normal weight women. WHAT IS KNOWN ALREADY Female obesity has been related to impaired IVF outcomes. Although the mechanisms responsible for this detrimental effect are thought to include impaired oocyte and embryo quality and reduced endometrial receptivity, they are yet to be confirmed. Embryo quality has been commonly assessed using static morphological criteria. Only three studies have analysed the progress of embryos up to the blastocyst stage in women with elevated BMI, but they have used small samples of patients or have obtained contradictory results. STUDY DESIGN, SIZE, DURATION This retrospective, cohort study, was performed from January 2016 to May 2020. A total of 3316 ICSI cycles from 2822 women were included, of which 1251 cycles were part of a preimplantation genetic testing programme. In total, 17 848 embryos were analysed. PARTICIPANTS/MATERIALS, SETTING, METHODS This study reports on the IVF cycles of infertile women, with a known BMI, who underwent ICSI and whose embryos were grown until the fifth/sixth day of development in a time-lapse system. Patients were grouped as follows. Underweight was defined as a BMI <18.5 kg/m2; normal weight was a BMI of 18.5-24.9 kg/m2; overweight was a BMI of 25-29.9 kg/m2; and obesity was a BMI of ≥30 kg/m2. Embryo development was assessed on an external computer with analysis software. MAIN RESULTS AND THE ROLE OF CHANCE Despite an initial slower pattern of embryo development, the blastocyst formation rate on day 5 or on day 5 plus day 6 did not differ in obese women with respect to the other three BMI groups. Moreover, based on the evaluation of inner cell mass and the trophectoderm on both days of blastocyst development, embryo quality was similar across the BMI groups, as were the pattern of development and arrest up to blastocyst formation and the distribution of the categories of full, expanded and hatching blastocysts. LIMITATIONS, REASONS FOR CAUTION Limitations include the retrospective analysis of data, the use of BMI as the only parameter to define normal/abnormal female body weight, and the lack of complete information about clinical outcomes. WIDER IMPLICATIONS OF THE FINDINGS Blastocyst formation and embryo morphokinetics are not affected by female obesity, and the poorer IVF outcomes described for such women are probably due to deficient endometrial receptivity. The role of endometrial progesterone exposure on the day of embryo transfer should be analysed in future studies as a possible determining factor. STUDY FUNDING/COMPETING INTEREST(S) No external funding was used and there are no competing interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- José Bellver
- IVI-RMA Valencia, Valencia, Spain.,Department of Pediatrics, Obstetrics & Gynecology, University of Valencia, Valencia, Spain.,IVI Foundation, Health Research Institute La Fe, Valencia, Spain
| | | | | | - Marcos Meseguer
- IVI-RMA Valencia, Valencia, Spain.,IVI Foundation, Health Research Institute La Fe, Valencia, Spain
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23
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Li H, Wang H, Zhu J, Xu J, Jiang Y, Chen W, Sun Y, Yang Q. Decreased DNA Repair Ability: A Mechanism for Low Early Embryonic Development Potential of Oocytes From Overweight Patients After Fertilization in IVF Cycles. Front Endocrinol (Lausanne) 2021; 12:756336. [PMID: 34887832 PMCID: PMC8651388 DOI: 10.3389/fendo.2021.756336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/02/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Whether female BMI impacts the DNA repair ability in the oocytes after fertilization has not been investigated. The aim of this study is to assess the early embryo quality and reproductive outcomes of oocytes from overweight women when fertilized with sperm with varying degrees of DNA fragmentation. METHODS A total number of 1,612 patients undergoing fresh autologous in vitro fertilization (IVF) cycles was included. These patients were divided into two groups according to maternal body mass index (BMI): normal weight group (18.5-24.9 kg/m2; n=1187; 73.64%) and overweight group (≥25 kg/m2; n=425; 26.36%). Each group was then subdivided into two groups by sperm DNA fragmentation index (DFI): low fragmentation group (<20% DFI, LF) and high fragmentation group (≥20% DFI, HF). Laboratory and clinical outcomes were compared between subgroups. RESULTS For the normal-weight group, there was no statistical significance in embryo quality and reproductive outcomes between the LF and HF groups. But in the overweight group, significantly lower fertilization rate (LF: 64%; HF: 59%; p=0.011), blastocyst development rate (LF: 57%; HF: 44%; p=0.001), as well as high-quality blastocyst rate (LF: 32%; HF: 22%; p=0.034) were found in the HF group, despite the similar pregnancy rates (LF: 56%; HF: 60%; p=0.630). CONCLUSIONS Decreased DNA repair activity in oocytes may be a possible mechanism for the low early development potential of embryos from overweight patients in in vitro fertilization cycles.
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Affiliation(s)
- Hui Li
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huan Wang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing Zhu
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianmin Xu
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuqing Jiang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenhui Chen
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingpu Sun
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Qingling Yang, ; Yingpu Sun,
| | - Qingling Yang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Qingling Yang, ; Yingpu Sun,
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