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Canosa S, Licheri N, Bergandi L, Gennarelli G, Paschero C, Beccuti M, Cimadomo D, Coticchio G, Rienzi L, Benedetto C, Cordero F, Revelli A. A novel machine-learning framework based on early embryo morphokinetics identifies a feature signature associated with blastocyst development. J Ovarian Res 2024; 17:63. [PMID: 38491534 PMCID: PMC10941455 DOI: 10.1186/s13048-024-01376-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 02/16/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Artificial Intelligence entails the application of computer algorithms to the huge and heterogeneous amount of morphodynamic data produced by Time-Lapse Technology. In this context, Machine Learning (ML) methods were developed in order to assist embryologists with automatized and objective predictive models able to standardize human embryo assessment. In this study, we aimed at developing a novel ML-based strategy to identify relevant patterns associated with the prediction of blastocyst development stage on day 5. METHODS We retrospectively analysed the morphokinetics of 575 embryos obtained from 80 women who underwent IVF at our Unit. Embryo morphokinetics was registered using the Geri plus® time-lapse system. Overall, 30 clinical, morphological and morphokinetic variables related to women and embryos were recorded and combined. Some embryos reached the expanded blastocyst stage on day 5 (BL Group, n = 210), some others did not (nBL Group, n = 365). RESULTS The novel EmbryoMLSelection framework was developed following four-steps: Feature Selection, Rules Extraction, Rules Selection and Rules Evaluation. Six rules composed by a combination of 8 variables were finally selected, and provided a predictive power described by an AUC of 0.84 and an accuracy of 81%. CONCLUSIONS We provided herein a new feature-signature able to identify with an high performance embryos with the best developmental competence to reach the expanded blastocyst stage on day 5. Clear and clinically relevant cut-offs were identified for each considered variable, providing an objective tool for early embryo developmental assessment.
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Affiliation(s)
- S Canosa
- Gynecology and Obstetrics 1U, Physiopathology of Reproduction and IVF Unit, Department of Surgical Sciences, S. Anna Hospital, University of Turin, Turin, Italy.
- IVIRMA Global Research Alliance, Livet, Turin, Italy.
| | - N Licheri
- Department of Computer Science, University di Turin, Turin, Italy
| | - L Bergandi
- Department of Oncology, University of Turin, Turin, Italy
| | - G Gennarelli
- Gynecology and Obstetrics 1U, Physiopathology of Reproduction and IVF Unit, Department of Surgical Sciences, S. Anna Hospital, University of Turin, Turin, Italy
- IVIRMA Global Research Alliance, Livet, Turin, Italy
| | - C Paschero
- Gynecology and Obstetrics 1U, Physiopathology of Reproduction and IVF Unit, Department of Surgical Sciences, S. Anna Hospital, University of Turin, Turin, Italy
| | - M Beccuti
- Department of Computer Science, University di Turin, Turin, Italy
| | - D Cimadomo
- IVIRMA Global Research Alliance, Genera, Clinica Valle Giulia, Rome, Italy
| | - G Coticchio
- IVIRMA Global Research Alliance, 9.Baby, Bologna, Italy
| | - L Rienzi
- IVIRMA Global Research Alliance, Genera, Clinica Valle Giulia, Rome, Italy
- Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Urbino, Italy
| | - C Benedetto
- Gynecology and Obstetrics 1U, Physiopathology of Reproduction and IVF Unit, Department of Surgical Sciences, S. Anna Hospital, University of Turin, Turin, Italy
| | - F Cordero
- Department of Computer Science, University di Turin, Turin, Italy
| | - A Revelli
- Gynecology and Obstetrics 1U, Physiopathology of Reproduction and IVF Unit, Department of Surgical Sciences, S. Anna Hospital, University of Turin, Turin, Italy
- Gynecology and Obstetrics 2U, Department of Surgical Sciences, S. Anna Hospital, University of Turin, Turin, Italy
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Bicici E, Satilmis F, Bodu M, Demirel MA, Karakas Alkan K, Alkan H. Effect of putrescine supplementation to in vitro maturation medium on embryo development and quality in cattle. Anim Biotechnol 2023; 34:3887-3896. [PMID: 37466367 DOI: 10.1080/10495398.2023.2236660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
This study aimed to investigate the effect of putrescine supplementation to maturation medium during in vitro embryo production in cattle on maturation and embryo development/quality. Oocytes obtained from the ovaries of Holstein cattle were used in the study. Obtained cumulus-oocyte complexes were evaluated according to morphological structure, cytoplasmic features, and cumulus cell number, and only Category-I ones were used in the study. Before the in vitro maturation step, oocytes were randomly divided into two groups. In the first group (Putrescine group, n = 159), 0.5 mM putrescine was added to the maturation medium before in vitro maturation. No addition was applied to the maturation medium of the second group (Control group, n = 149). Cumulus expansion degrees of oocytes following maturation (Grade I: poor, Grade II: partial, and Grade III: complete) were determined. In addition, the meiosis of oocytes after maturation was evaluated by differential staining. Then the oocytes were left for fertilization with sperm and finally, possible zygotes were transferred to the culture medium. After determining the developmental stages and quality of the embryos after in vitro culture, only the embryos at the blastocyst stage were stained with the differential staining method to determine the cell numbers. When the cumulus expansion degrees of the groups were evaluated, the Grade III cumulus expansion rate in the putrescine group was higher than the control group (74.21% and 60.4%; respectively) and the Grade I expansion rate (11.95% and 26.17%; respectively) was found lower (p < .05). When the resumption of meiosis was evaluated according to the cumulus expansion degrees, it was determined that the rate of resumption of meiosis increased as the cumulus expansion increased. In addition, the cleavage rates of oocytes and reaching the blastocyst in the putrescine group were found to be higher than in the control group (p < .05). Moreover, inner cell mass, trophectoderm cells, and total cell counts were found to be higher in blastocysts obtained after the putrescine supplementation to the maturation medium compared to the control group (p < .05). As a result, it was determined that the putrescine supplementation to the maturation medium during in vitro embryo production in cattle increased the degree of cumulus expansion and the rate of resumption of meiosis. In addition, putrescine supplementation was thought to increase the rate of reaching the blastocyst of oocytes due to better cell development in embryos.
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Affiliation(s)
- Esra Bicici
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
| | - Fatma Satilmis
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
| | - Mustafa Bodu
- Department of Reproduction and Artificial Insemination, Selcuk University, Konya, Turkey
| | | | | | - Hasan Alkan
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
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Wu S, Zhang J, Guan Y, Ren B, Zhang Y, Liu X, Wang K, Zhang M, Li Z. Effects of chromosomal translocation characteristics on fertilization and blastocyst development - a retrospective cohort study. BMC Med Genomics 2023; 16:273. [PMID: 37915045 PMCID: PMC10619257 DOI: 10.1186/s12920-023-01715-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/24/2023] [Indexed: 11/03/2023] Open
Abstract
OBJECTIVE To determine the effect of different translocation characteristics on fertilization rate and blastocyst development in chromosomal translocation patients. METHODS This retrospective cohort study was conducted at the Third Affiliated Hospital of Zhengzhou University From January 2017 to December 2022.All couples were diagnosed as reciprocal translocation or Robertsonian translocation by karyotype of peripheral blood lymphocytes test. After adjusting for confounding factors, the effect of chromosomal rearrangement characteristics, such as carrier sex, translocation type, chromosome length and break sites, on fertilization rate and embryo development were analysed separately using multiple linear regression. RESULTS In cases of Robertsonian translocation (RobT), the carrier sex plays an independent role in fertilization rate, and the male carriers was lower than that of female carriers (76.16% vs.86.26%, P = 0.009). In reciprocal translocation (RecT), the carrier sex, chromosome types and break sites had no influence on fertilization rate, blastocyst formation rate (P > 0.05). However, patients with human longer chromosomal (chromosomes 1-5) translocation have a lower available blastocyst formation rate (Group AB vs. Group CD: 41.49%vs.46.01%, P = 0.027). For male carriers, the translocation types was an independent factor affecting the fertilization rate, and the RobT was the negative one (B = - 0.075, P = 0 0.009). In female carriers, we did not observe this difference (P = 0.227). CONCLUSIONS In patients with chromosomal translocation, the fertilization rate may be influenced by carrier sex and translocation type, chromosomes 1-5 translocation may adversely affect the formation of available blastocysts. Break sites have no role in fertilization and blastocyst development.
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Affiliation(s)
- Shanshan Wu
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianrui Zhang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yichun Guan
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bingnan Ren
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuchao Zhang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xinmi Liu
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kexin Wang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mingmei Zhang
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhen Li
- Reproductive Medicine Center, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Lowther KM, Bartolucci AF, Massey RE, Brown J, Peluso JJ. Supplementing culture medium with the weak acid, 5,5-dimethyl-2,4-oxazolidinedione (DMO) limits the development of aneuploid mouse embryos through a Trp53-dependent mechanism. J Assist Reprod Genet 2023; 40:1215-1223. [PMID: 37058262 PMCID: PMC10239418 DOI: 10.1007/s10815-023-02788-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 03/22/2023] [Indexed: 04/15/2023] Open
Abstract
PURPOSE This study was designed to determine if DMO limits in vitro development of aneuploid-enriched mouse embryos by activating a Trp53-dependent mechanism. METHODS Mouse cleavage-stage embryos were treated with reversine to induce aneuploidy or vehicle to generate controls, and then cultured in media supplemented with DMO to reduce the pH of the culture media. Embryo morphology was assessed by phase microscopy. Cell number, mitotic figures, and apoptotic bodies were revealed by staining fixed embryos with DAPI. mRNA levels of Trp53, Oct-4, and Cdx2 were monitored by quantitative polymerase chain reactions (qPCRs). The effect of Trp53 on the expression of Oct-4 and Cdx2 was assessed by depleting Trp53 using Trp53 siRNA. RESULTS Aneuploid-enriched late-stage blastocysts were morphologically indistinguishable from control blastocysts but had fewer cells and reduced mRNA levels of Oct-4 and Cdx2. Adding 1 mM DMO to the culture media during the 8-cell to blastocyst transition reduced the formation of aneuploid-enriched late-stage blastocysts but not control blastocysts and further suppressed the levels of Oct-4 and Cdx2 mRNA. Trp53 RNA levels in aneuploid-enriched embryos that were exposed to DMO were > twofold higher than controls, and Trp53 siRNA levels reduced the levels of Trp53 and increased levels of Oct-4 and Cdx2 mRNA by > twofold. CONCLUSION These studies suggest that the development of morphologically normal aneuploid-enriched mouse blastocysts can be inhibited by adding low amounts of DMO to the culture media, which results in elevated levels of Trp53 mRNA that suppresses Oct-4 and Cdx2 expression.
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Affiliation(s)
- Katie M Lowther
- Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Ave., CT, 06030, Farmington, USA
| | - Alison F Bartolucci
- Department of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington, CT, 06030, USA
- The Center for Advanced Reproductive Services, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | | | - Judy Brown
- Institute for Systems Genomics, UCONN, Storrs, CT, 06268, USA
| | - John J Peluso
- Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Ave., CT, 06030, Farmington, USA.
- Department of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington, CT, 06030, USA.
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Okubo T, Onda N, Hayashi T, Kobayashi T, Omi K, Segawa T. Performing a sperm DNA fragmentation test in addition to semen examination based on the WHO criteria can be a more accurate diagnosis of IVF outcomes. BMC Urol 2023; 23:78. [PMID: 37120514 PMCID: PMC10148994 DOI: 10.1186/s12894-023-01257-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 04/18/2023] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND We analyzed the sperm DNA fragmentation index (DFI) and general semen test based on the World Health Organization (WHO) criteria and compared the two tests using semen factors. In addition, we examined whether DFI is a reliable parameter associated with in vitro fertilization (IVF) outcomes. METHODS Sperm chromatin dispersion (SCD) and general semen tests were conducted in accordance with the WHO 2010 guidelines, and correlations between the two tests were investigated. The WHO criteria were set as the cutoff values for each of the following factors: semen volume, concentration, total sperm count, motility, and normal morphology, and compared with the DFI results. RESULTS The subjects had a mean sperm DFI of 15.3% ± 12.6%, and the DFI increased with age. In contrast, motility and normal morphology decreased as the DFI increased. Patients who satisfied the WHO criteria in terms of concentration, total sperm count, and motility had a significantly lower DFI than those who did not satisfy the criteria. Therefore, evaluation with a general semen test based on the WHO criteria should be regarded as a qualitative evaluation of all factors other than semen volume and normal morphology. CONCLUSIONS High DFI (≥ 30%) caused a low blastocyst development rate following intracytoplasmic sperm injection. Male infertility due to DFI should be suspected when IVF results are poor despite normal semen findings based on the WHO criteria. The results of this study suggest that the SCD test may more accurately evaluate the correlation between IVF clinical outcomes and male infertility. Therefore, it is important to focus on DFI measurements.
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Affiliation(s)
- Tsuyoshi Okubo
- Shimbashi Yume Clinic, 2-5-1 Shimbashi Minato-ku, Tokyo, 105-0004, Japan.
| | - Noriyuki Onda
- Shimbashi Yume Clinic, 2-5-1 Shimbashi Minato-ku, Tokyo, 105-0004, Japan
| | - Teruaki Hayashi
- Shimbashi Yume Clinic, 2-5-1 Shimbashi Minato-ku, Tokyo, 105-0004, Japan
| | - Tatsuya Kobayashi
- Department of Reproductive Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana Chuo-ku, Chiba, 260-0856, Japan
| | - Kenji Omi
- Shimbashi Yume Clinic, 2-5-1 Shimbashi Minato-ku, Tokyo, 105-0004, Japan
| | - Tomoya Segawa
- Shimbashi Yume Clinic, 2-5-1 Shimbashi Minato-ku, Tokyo, 105-0004, Japan
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Curchoe CL, Bormann C, Hammond E, Salter S, Timlin C, Williams LB, Gilboa D, Seidman D, Campbell A, Morbeck D. Assuring quality in assisted reproduction laboratories: assessing the performance of ART Compass - a digital art staff management platform. J Assist Reprod Genet 2023; 40:265-278. [PMID: 36637586 PMCID: PMC9935773 DOI: 10.1007/s10815-023-02713-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/30/2022] [Indexed: 01/14/2023] Open
Abstract
PURPOSE Staff management is the most cited ART/IVF laboratory inspection deficiency. Small ART/IVF clinics may be challenged to perform these activities by low staff volume; similarly, large ART/IVF networks may be challenged by high staff volume and large datasets. Here, we sought to investigate the performance of an automated, digital platform solution to manage this necessary task. METHODS The ART Compass (ARTC) digital staff management platform was used to assess the clinical decision-making of ART laboratory staff. The survey modules presented standardized instructions to technologists and measured inter- and intra-technologist variability for subjective "clinical decision-making" type questions. Internal and external comparisons were achieved by providing technologists two answers: (1) a comparison to their own lab director and (2) to the most popular response collectively provided by all lab director level accounts. The platform is hosted on HIPAA compliant Amazon web servers, accessible via web browser and mobile applications for iOS (Apple) and Android mobile devices. RESULTS Here, we investigated the performance of a digital staff management platform for single embryologist IVF practices and for three IVF lab networks (sites A, B, C) from 2020 to 2022. Embryology dish preparation survey results show variance among respondents in the following: PPE use, media volume, timing of oil overlay, and timing of moving prepared dishes to incubators. Surveying the perceived Gardner score and terms in use for early blastocysts reveals a lack of standardization of terminology and fair to poor agreement. We observed moderate inter-technologist agreement for ICM and TE grade (0.47 and 0.52, respectively). Lastly, the clinical decision of choice to freeze or discard an embryo revealed that agreement to freeze was highest for the top-quality embryos, and that some embryos can be highly contested, evenly split between choice to freeze or discard. CONCLUSIONS We conclude that a digital platform is a novel and effective tool to automate, routinely monitor, and assure quality for staff-related parameters in ART and IVF laboratories. Use of a digital platform can increase regulatory compliance and provide actionable insight for quality assurance in both single embryologist practices and for large networks. Furthermore, clinical decision-making can be augmented with artificial intelligence integration.
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Affiliation(s)
| | - Charles Bormann
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | | | | | - Claire Timlin
- Fertility Guidance Technologies, Newport Beach, CA, USA
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Zhao H, Qiu Q, Ou S, Lin H, Wang W, Zhang Q. Increased ammonium in culture medium may promote cellular apoptosis and negatively affect pluripotency of human blastocysts. Arch Gynecol Obstet 2023; 307:619-624. [PMID: 36394664 DOI: 10.1007/s00404-022-06844-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022]
Abstract
PURPOSE To determine the association between ammonium concentration in culture medium and blastocyst development and to assess the influence of increased ammonium concentration on the expression of Bax, Bcl-2 and Oct4. METHODS A total of 254 cleavage-stage embryos were individually cultured in 30μL G2-plus medium on Day 3, and then culture media samples were collected on Day 5 for ammonium concentration determination immediately after evaluating the embryos morphology. Poor-quality blastocysts (combined score of CC) were used for gene expression analysis. The blastocyst formation rate, good-quality blastocyst rate and relative expression levels of Bax, Bcl-2 and Oct4 were analyzed. RESULTS Based on receiver operating characteristic curve, the cutoff value of ammonium concentration produced by embryos was 16.07 μmol/L (AUC = 0.722, 95% CI 0.637-0.807; P = 0.000), so all embryos were assigned to two groups according to the cutoff value: normal group (< 16.07 μmol/L) and increased group (≥ 16.07 μmol/L). There was a significant difference in blastocyst formation rate (80.5% vs 59.0%, P < 0.01) between normal group and increased group, as well as for good-quality blastocyst rate (21.0% vs 3.4%, P < 0.01). A significantly higher expression level of Bax (P < 0.05) and considerably lower expression level of Oct4 (P < 0.01) were observed in increased group compared to normal group. CONCLUSION Our data demonstrated for the first time that increased ammonium concentration in culture medium may promote cellular apoptosis and negatively affect pluripotency of human blastocyst.
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Affiliation(s)
- Haijing Zhao
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Qi Qiu
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Songbang Ou
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Haiyan Lin
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Wenjun Wang
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China
| | - Qingxue Zhang
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, 510120, China.
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Mateizel I, Santos-Ribeiro S, Segers I, Wouters K, Mackens S, Verheyen G. Effect of A23187 ionophore treatment on human blastocyst development-a sibling oocyte study. J Assist Reprod Genet 2022. [PMID: 35357606 DOI: 10.1007/s10815-022-02467-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 03/15/2022] [Indexed: 10/18/2022] Open
Abstract
PURPOSE To investigate whether treatment with commercially available ready-to-use A23187 ionophore (GM508-CultActive) improves embryo development outcome in patients with a history of embryo developmental problems. METHODS This is a uni-center prospective study in which sibling oocytes of patients with embryos of poor quality on day 5 in the previous cycle were treated or not with CultActive. RESULTS Two hundred forty-seven metaphase II (MII) oocytes from 19 cycles performed between 2016 and 2019 were included in the study. After ICSI, the sibling oocytes were assigned to the treatment group or to the control group, following an electronically generated randomization list. A number of 122 MII were treated with CultActive and 125 MII had no treatment and were assigned to the control group. No difference in fertilization rate (p = 0.255) or in the capacity of embryos to reach good quality on day 5 (p = 0.197) was observed between the two groups. The utilization rates defined as the number of embryos transferred or cryopreserved per mature oocyte (p = 0.438) or per fertilized oocytes (p = 0.299) were not significantly different between the treated group and the control group. CONCLUSION The results of the current study do not support the use of CultActive in cases with embryo developmental problems.
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Stigliani S, Massarotti C, Bovis F, Casciano I, Sozzi F, Remorgida V, Cagnacci A, Anserini P, Scaruffi P. Pronuclear score improves prediction of embryo implantation success in ICSI cycles. BMC Pregnancy Childbirth 2021; 21:361. [PMID: 33952184 PMCID: PMC8097973 DOI: 10.1186/s12884-021-03820-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 04/21/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In assisted reproduction technology embryo competence is routinely evaluated on morphological criteria but efficacy remains relatively low. Additional information could be obtained by evaluating pronuclear (PN) morphology. Up to now controversial results have been reported about the prognostic value of PN score. One of the main limitations of literature data is the use of different PN classification methods. In this regard, in 2011 the ESHRE and Alpha Scientists in Reproductive Medicine defined three PN categories to standardize zygote assessment. In this study we evaluated whether the consensus ESHRE-Alpha system for the pronuclear scoring could be an useful additional criterion to improve prediction of embryo implantation potential. METHODS This is a retrospective, longitudinal, observational, cohort study. We included 3004 zygotes from 555 women who underwent ICSI treatment at our Center between January 2014 and June 2019. The PN were categorized as score 1: symmetrical, 2: non-symmetrical, 3: abnormal. A subset of 110 zygotes did not cleaved. On day 2-3 1163 embryos were transferred, 232 arrested, and 9 were cryopreserved. Among the 1490 embryos cultured up to day 5-7, 516 became blastocysts: 123 were transferred on day 5 and 393 were cryopreserved. Comparisons of age, cleavage and blastocyst rate, quality of embryos, implantation success among PN score groups were evaluated by chi-square test or Kruskal-Wallis test as appropriate. Potential predictors of embryo implantation were first tested in univariable analysis using generalized estimating equations taking into account correlation between embryos originated from the same patient. Then, variables potentially associated with implantation success (P<0.05) were included in a multivariable analysis for calculating the adjusted odds ratio (OR) and 95% confidence interval (CI). RESULTS There was no significant difference in patients'age, cleavage and blastulation rates, and embryo morphology among the three PNscore groups. The PN score 1-embryos had a greater implantation success respect to score 2-3-ones (OR 1.83; 95% CI 1.34-2.50, P=0.0001). Consistently, the pronuclear score remained predictive of implantation in top quality embryos (OR 1.68; 95%CI 1.17-2.42, P= 0.005). CONCLUSIONS The consensus pronuclear score may be routinely included among criteria for embryo evaluation to increase patients' chance of becoming pregnant.
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Affiliation(s)
- Sara Stigliani
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 10, 16132, Genova, Italy
| | - Claudia Massarotti
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Academic Unit of Obstetrics and Gynecology, University of Genova, Genova, Italy
| | - Francesca Bovis
- Department of Health Sciences (DISSAL), University of Genova, Genova, Italy
| | - Ida Casciano
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 10, 16132, Genova, Italy
| | - Fausta Sozzi
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 10, 16132, Genova, Italy
| | - Valentino Remorgida
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Academic Unit of Obstetrics and Gynecology, University of Genova, Genova, Italy
| | - Angelo Cagnacci
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Academic Unit of Obstetrics and Gynecology, University of Genova, Genova, Italy
| | - Paola Anserini
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 10, 16132, Genova, Italy
| | - Paola Scaruffi
- UOS Physiopathology of Human Reproduction, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 10, 16132, Genova, Italy.
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Walz NL, Hinchliffe PM, Soares MJ, Dhaliwal SS, Newsholme P, Yovich JL, Keane KN. Serum Vitamin D status is associated with increased blastocyst development rate in women undergoing IVF. Reprod Biomed Online 2020; 41:1101-1111. [PMID: 33012659 DOI: 10.1016/j.rbmo.2020.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/21/2020] [Accepted: 08/14/2020] [Indexed: 12/25/2022]
Abstract
RESEARCH QUESTION To determine the relationship between vitamin D (VitD) status and embryological, clinical pregnancy and live birth outcomes in women undergoing IVF. DESIGN Cross-sectional, observational study conducted at a university-affiliated private IVF clinic. A total of 287 women underwent 287 IVF cycles and received a fresh embryo transfer. Patients had their serum 25-hydroxyvitamin D2/D3 (VitD) determined on the day of oocyte retrieval, which was analysed in relation to blastocyst development rate, clinical pregnancy and live birth outcomes. RESULTS In stepwise, multivariable logistic regression models, increases in blastocyst development rate, number and quality, along with embryo cryopreservation and utilization rates were associated with women with a sufficient VitD status (≥20 ng/ml). For a single increase in the number of blastocysts generated per cycle or embryos cryopreserved per cycle, the likelihood for the patient to be VitD sufficient was increased by 32% (odds ratio [OR] 1.32, 95% confidence interval [CI] 1.10-1.58, P = 0.002 and OR 1.33, 95% CI 1.10-1.60, P = 0.004, respectively). Clinical pregnancy (40.7% versus 30.8%, P = 0.086) and live birth rates (32.9% versus 25.8%, P = 0.195) in the sufficient VitD group versus the insufficient group were not significantly different and VitD sufficiency was not significantly associated with these outcomes. CONCLUSION A strong relationship was observed between blastocyst development and VitD sufficiency. However, there was no association between VitD and clinical pregnancy or live birth outcomes. Further larger studies are needed to investigate whether the observed effect on blastocyst development may have downstream implications on subsequent clinical pregnancy or live birth rates, and on a potential mechanism where sufficient VitD concentrations are linked to improved IVF outcomes.
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Affiliation(s)
- Nikita L Walz
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Bentley WA 6845, Australia; PIVET Medical Centre, Leederville, Perth WA 6007, Australia
| | | | - Mario J Soares
- School of Public Health, Faculty of Health Sciences, Curtin University, Bentley WA 6845, Australia
| | - Satvinder S Dhaliwal
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley WA 6845, Australia; Duke-NUS Medical School, National University of Singapore (NUS), Singapore
| | - Philip Newsholme
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Bentley WA 6845, Australia
| | - John L Yovich
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Bentley WA 6845, Australia; PIVET Medical Centre, Leederville, Perth WA 6007, Australia
| | - Kevin N Keane
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Bentley WA 6845, Australia; PIVET Medical Centre, Leederville, Perth WA 6007, Australia.
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Gao D, Xu T, Qi X, Ning W, Ren S, Ru Z, Ji K, Ma Y, Yu T, Li Y, Cao Z, Zhang Y. CLAUDIN7 modulates trophectoderm barrier function to maintain blastocyst development in pigs. Theriogenology 2020; 158:346-357. [PMID: 33038820 DOI: 10.1016/j.theriogenology.2020.09.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
Trophectoderm (TE) barrier function is an essential prerequisite for blastocyst development. CLAUDIN7 (CLDN7), a member of CLAUDINS family, is involved in regulating intercellular exchange and cell polarity in epithelium cells. However, the role of CLDN7 in porcine early embryo development is yet to be explored. Here, we found that CLDN7 was highly conserved in different species and was widely expressed in different tissues. Remarkably, CLDN7 expression maintained a low level from GV oocyte to 4-cell stage whereas its expression exhibited a higher level from 8-cell stage onwards. Microinjection of siRNA into cytoplasm effectively knocked down expression of CLDN7 mRNA and protein in porcine embryos. CLDN7 knockdown not only significantly reduced blastocyst rates of embryos derived from parthenogenetic activation and in vitro fertilization, but also reduced number of total cells and TE cells in the resulting blastocysts. Furthermore, CLDN7 knockdown led to a significant reduction in expression of multiple genes associated with tight junction assembly and fluid accumulation. A permeability assay revealed that CLDN7 knockdown disrupted tight junction assembly and paracellular sealing in the TE epithelium. Taken together, these results demonstrate that CLDN7 regulates porcine blastocyst development via modulating trophectoderm barrier function.
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Affiliation(s)
- Di Gao
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Tengteng Xu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Xin Qi
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Wei Ning
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Shang Ren
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zhenyuan Ru
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Kaiyuan Ji
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yangyang Ma
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Tong Yu
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Yunsheng Li
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zubing Cao
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
| | - Yunhai Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, 230036, China.
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Nguyen AQ, Bardua I, Greene B, Wrenzycki C, Wagner U, Ziller V. Mouse embryos exposed to oxygen concentrations that mimic changes in the oviduct and uterus show improvement in blastocyst rate, blastocyst size, and accelerated cell division. Reprod Biol 2020; 20:147-153. [PMID: 32317160 DOI: 10.1016/j.repbio.2020.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 10/24/2022]
Abstract
After in vivo fertilisation, the preimplantation embryo goes through cleavage during migration along the oviduct in mammals or the fallopian tube in a woman and ends up inside the uterus. This study investigates the effect of a protocol aimed at closely reproducing that natural oxygen concentration in the oviduct (7 % O2 from day 1 to day 3 and 2 % from day 3 to day 5), in contrast to the concentrations (5 % or 20 %) widely used in practice in ART using morphokinetic. Female mice (BI6/CBAca) were sacrificed, and zygotes were isolated 20 h after mating and randomly allocated to three parallel groups, which were grown under high atmospheric, low, or sequential oxygen concentrations. Zygotes were cultured in GTL medium (Vitrolife) and observed by the Primovision time-lapse system. Blastocyst rate at 120 h in the sequential group (91.3 %) was significantly increased over the high (76.3 %) and low (74.4 %) groups. Blastocyst size was also enlarged in the sequential group compared to the high and low groups. Moreover, cell division in the sequential group was significantly faster at almost every cleavage stage than it was in the other groups. Notably, the duration of the interims between stages also differed significantly between the groups. This study demonstrated that, in comparison to routinely used high or low oxygen conditions, oxygen concentrations mimicking changes in the oviduct and uterus significantly improve the blastocyst rate and size and accelerate cell division at several stages as well as the interims between cleavage events.
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Affiliation(s)
- Anne Quyen Nguyen
- Dep. Gyn. Endocrinology and Reproductive Medicine, University Hospital Giessen, Marburg, Germany.
| | - Inga Bardua
- Dep. Gyn. Endocrinology and Reproductive Medicine, University Hospital Giessen, Marburg, Germany
| | - Brandon Greene
- Institute of Medical Biometry and Epidemiology, Philipps University, Marburg, Germany
| | - Christine Wrenzycki
- Clinic for Veterinary Obstetrics, Gynaecology, and Andrology, Chair for Molecular Reproductive Medicine, Justus-Liebig-University, Giessen, Germany
| | - Uwe Wagner
- Dep. Gyn. Endocrinology and Reproductive Medicine, University Hospital Giessen, Marburg, Germany
| | - Volker Ziller
- Dep. Gyn. Endocrinology and Reproductive Medicine, University Hospital Giessen, Marburg, Germany.
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Bódis J, Gödöny K, Várnagy Á, Kovács K, Koppán M, Nagy B, Erostyák J, Herczeg R, Szekeres-Barthó J, Gyenesei A, Kovács GL. How to Reduce the Potential Harmful Effects of Light on Blastocyst Development during IVF. Med Princ Pract 2020; 29:558-564. [PMID: 32474560 PMCID: PMC7768157 DOI: 10.1159/000509016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 05/28/2020] [Indexed: 12/24/2022] Open
Abstract
PURPOSE Earlier findings revealed the damaging effect of visible light on zygotes and gametes. The aim of our study is to eliminate or significantly reduce the potentially harmful effects of light exposure during in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) and to investigate the effect of light protection on embryo development and implantation. MATERIALS AND METHODS To protect sperm cells, oocytes, and embryos from the potential harmful effects of light exposure during laboratory procedures, we created a dark environment for the cells and applied red filters on laboratory lamps and UV or infrared filters in the microscopes in order to eliminate white light exposure of the cells throughout all work stages. RESULTS The fertilization rate was significantly (p = 0.011) higher in light-protected ICSI cycles. Blastocyst development rates (blastocyst/embryo) were significantly (p < 0.001) higher in light-protected embryos than in those manipulated in conventional light conditions both in IVF (20.9% difference) and ICSI (38.6% difference). Numbers of clinical pregnancies/transfers of ICSI fertilized day 5 blastocysts were also significantly (p = 0.040) higher in light-protected conditions. CONCLUSIONS These data show that light protection has a positive effect on fertilization rate and increases the blastocyst development as well as the number of clinical pregnancies/transfers. Implementation of this light protection method in IVF centers may improve the success rate while maintaining maximal embryo safety.
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Affiliation(s)
- József Bódis
- Department of Obstetrics and Gynecology, University of Pécs, Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary
| | - Krisztina Gödöny
- Department of Obstetrics and Gynecology, University of Pécs, Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary
| | - Ákos Várnagy
- Department of Obstetrics and Gynecology, University of Pécs, Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary
| | - Kálmán Kovács
- Department of Obstetrics and Gynecology, University of Pécs, Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary
| | - Miklós Koppán
- Department of Obstetrics and Gynecology, University of Pécs, Pécs, Hungary
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary
| | - Bernadett Nagy
- Department of Obstetrics and Gynecology, University of Pécs, Pécs, Hungary,
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary,
| | - János Erostyák
- Institute of Physics, University of Pécs, Pécs, Hungary
- Szentágothai Research Center, Pécs, Hungary
| | | | - Julia Szekeres-Barthó
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary
- Szentágothai Research Center, Pécs, Hungary
| | | | - Gabor L Kovács
- MTA-PTE Human Reproduction Scientific Research Group, Pécs, Hungary
- Szentágothai Research Center, Pécs, Hungary
- Department of Laboratory Medicine, University of Pécs, Pécs, Hungary
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14
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Mito T, Hoshi H. In Vitro Culture of Late Stage Pig Embryos in a Chemically Defined Medium, Porcine Blastocyst Medium (PBM). Methods Mol Biol 2019; 2006:105-13. [PMID: 31230275 DOI: 10.1007/978-1-4939-9566-0_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
In vitro production (IVP) of porcine preimplantation embryos is an important technique not only for basic and biomedical research purposes but also for animal biotechnology application such as transgenesis, cloning, and embryo transfer. In this chapter, we demonstrate a superior IVP procedure of porcine embryos derived from cumulus-oocyte complexes (COCs) of slaughtered pig ovaries which are cultured sequentially in different defined media. Porcine blastocyst medium (PBM) particularly designed for the late stage embryo culture could improve the potential of morulae or blastocysts to develop into hatching and hatched blastocysts with good quality.
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15
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Desai N, Goldberg JM, Austin C, Falcone T. Are cleavage anomalies, multinucleation, or specific cell cycle kinetics observed with time-lapse imaging predictive of embryo developmental capacity or ploidy? Fertil Steril 2018; 109:665-674. [PMID: 29452698 DOI: 10.1016/j.fertnstert.2017.12.025] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/16/2017] [Accepted: 12/19/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To determine whether cleavage anomalies, multinucleation, and specific cellular kinetic parameters available from time-lapse imaging are predictive of developmental capacity or blastocyst chromosomal status. DESIGN Retrospective analysis of prospectively collected data. SETTING Single academic center. PATIENT(S) A total of 1,478 zygotes from patients with blastocysts biopsied for preimplantation genetic screening were cultured in the EmbryoScope. INTERVENTION(S) Trophectoderm biopsy. MAIN OUTCOME MEASURE(S) Embryo dysmorphisms, developmental kinetics, and euploidy. RESULT(S) Of the 767 biopsied blastocysts, 41.6% (95% confidence interval [CI], 38%-45%) were diagnosed as euploid. Individual dysmorphisms such as multinucleation, reverse cleavage, irregular chaotic division, or direct uneven cleavage were not associated with aneuploidy. Direct uneven cleavage and irregular chaotic division embryos did, however, exhibit lower developmental potential. The presence of two or more dysmorphisms was associated with an overall lower euploidy rate, 27.6% (95% CI 19%-39%). Early embryo kinetics were predictive of blastocyst development but not ploidy status. In contrast, chromosomal status correlated significantly with start time of blastulation (tSB), expansion (tEB), and the tEB-tSB interval. A lower euploidy rate, 36.6% (95% CI 33%-42%) was observed with tSB ≥ 96.2 hours, compared with 48.2% with tSB < 96.2 (95% CI 42%-54%). A drop in euploidy rate to 30% (95% CI 25%-37%) was observed in blastocysts with delayed expansion (tEB > 116). The proportion of euploid blastocysts was increased with tEB-tSB intervals of ≤13 hours. A logistic regression model to enhance the probability of selecting a euploid blastocyst was constructed. CONCLUSION(S) Morphokinetics may aid in selection of euploid embryos from a cohort of day 5/6 blastocysts.
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Affiliation(s)
- Nina Desai
- Cleveland Clinic, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Beachwood, Ohio.
| | - Jeffrey M Goldberg
- Cleveland Clinic, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Beachwood, Ohio
| | - Cynthia Austin
- Cleveland Clinic, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Beachwood, Ohio
| | - Tommaso Falcone
- Cleveland Clinic, Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Beachwood, Ohio
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16
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Kaing A, Kroener LL, Tassin R, Li M, Liu L, Buyalos R, Hubert G, Shamonki M. Earlier day of blastocyst development is predictive of embryonic euploidy across all ages: essential data for physician decision-making and counseling patients. J Assist Reprod Genet 2017; 35:119-125. [PMID: 28894983 DOI: 10.1007/s10815-017-1038-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 09/03/2017] [Indexed: 02/03/2023] Open
Abstract
PURPOSE The purpose of this study is to evaluate whether day of blastocyst development is associated with embryo chromosomal status as determined by high-density oligonucleotide microarray comparative genomic hybridization (aCGH). METHODS This is a retrospective cohort analysis, including women who underwent in vitro fertilization (IVF) with trophectoderm biopsy at a single private fertility center from January 2014 to December 2014. Repeat cycles were excluded. Cycles were assessed for percentage of blastocysts biopsied on days 5, 6, or 7 and rate of euploid embryos per cycle. Cycles were stratified by Society for Assisted Reproductive Technology (SART) age groups (< 35, 35-37, 38-40, 41-42, > 42) and by donor status. RESULTS A total of 388 IVF cycles and 2132 biopsied blastocysts were evaluated. The percentages of blastocysts biopsied on days 5, 6, and 7 were 62.5, 35.8, and 1.7%, respectively. Blastocyst euploid rates on days 5, 6, and 7 were 49.5, 36.5, and 32.9%, respectively. Earlier blastocyst development was associated with a significantly increased euploid rate (p < 0.0001). Younger maternal age (p < 0.0001) and higher number of blastocysts biopsied per patient (p = 0.0063) were both independently associated with greater percentage of euploidy. CONCLUSIONS Earlier blastocyst development is independently associated with a higher likelihood of embryonic euploidy in both autologous and donor embryos. In non-biopsied embryos, these data support selection of day 5 blastocysts for transfer over later-developing embryos. These results can assist with patient counseling regarding expectations and outcomes. To our knowledge, this is the first study to examine embryonic euploidy as stratified by both day of blastocyst development and SART age group.
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Affiliation(s)
- Amy Kaing
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of California, Los Angeles, 10833 LeConte Ave, Los Angeles, CA, 90095, USA
| | - Lindsay L Kroener
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of California, Los Angeles, 10833 LeConte Ave, Los Angeles, CA, 90095, USA
| | - Robyn Tassin
- Fertility and Surgical Associates of California, 325 Rolling Oaks Dr. Suite 110, Thousand Oaks, CA, 91361, USA
| | - Man Li
- Fertility and Surgical Associates of California, 325 Rolling Oaks Dr. Suite 110, Thousand Oaks, CA, 91361, USA
| | - Lian Liu
- PacGenomics, 28222 Agoura Rd. Suite 200/201, Agoura Hills, CA, 91301, USA
| | - Richard Buyalos
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of California, Los Angeles, 10833 LeConte Ave, Los Angeles, CA, 90095, USA
- Fertility and Surgical Associates of California, 325 Rolling Oaks Dr. Suite 110, Thousand Oaks, CA, 91361, USA
| | - Gary Hubert
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of California, Los Angeles, 10833 LeConte Ave, Los Angeles, CA, 90095, USA
- Fertility and Surgical Associates of California, 325 Rolling Oaks Dr. Suite 110, Thousand Oaks, CA, 91361, USA
| | - Mousa Shamonki
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of California, Los Angeles, 10833 LeConte Ave, Los Angeles, CA, 90095, USA.
- Fertility and Surgical Associates of California, 325 Rolling Oaks Dr. Suite 110, Thousand Oaks, CA, 91361, USA.
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Hutchinson AP, Pereira N, Lilienthal DP, Coveney S, Lekovich JP, Elias RT, Rosenwaks Z. Impact of FMR1 Pre-Mutation Status on Blastocyst Development in Patients Undergoing Pre-Implantation Genetic Diagnosis. Gynecol Obstet Invest 2017; 83:23-28. [PMID: 28222427 DOI: 10.1159/000455849] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 01/05/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS The study aimed to investigate the impact of fragile X mental retardation 1 (FMR1) pre-mutation status on blastocyst development in patients undergoing pre-implantation genetic diagnosis (PGD). METHODS Case-control study of patients <40 years undergoing PGD at blastocyst stage for FMR1 pre-mutation status. Age-matched patients undergoing PGD for other single gene disorders were considered controls. Blastocyst development, calculated per metaphase II (MII) oocyte retrieved and per 2 pronuclear (2PN) embryos, was compared between the 2 groups. Pregnancy outcomes after embryo transfer were also compared. RESULTS Eighty-one and 791 patients were included in the FMR1 and control groups, respectively. FMR1 pre-mutation carriers had lower indicators of ovarian reserve, required higher gonadotropin doses, and had fewer MII oocytes retrieved. Mean blastocyst development per MII oocyte (12.6 vs. 29.4%; p < 0.001) and per 2PN embryos (21.5 vs. 41.7%; p < 0.001) was lower in the FMR1 group. An inverse correlation between the number of FMR1 CGG repeats and blastocyst development per MII oocyte (ρ = -0.63; p < 0.001) was observed. There was no difference in the rates of clinical pregnancy, spontaneous abortion, or live birth among the groups. CONCLUSION Our study suggests lower rates of blastocyst development in patients with FMR1 pre-mutation status and an inverse correlation between the number of FMR1 CGG repeats and blastocyst development.
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Affiliation(s)
- Anne P Hutchinson
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
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Martino NA, Ariu F, Bebbere D, Uranio MF, Chirico A, Marzano G, Sardanelli AM, Cardinali A, Minervini F, Bogliolo L, Dell'Aquila ME. Supplementation with nanomolar concentrations of verbascoside during in vitro maturation improves embryo development by protecting the oocyte against oxidative stress: a large animal model study. Reprod Toxicol 2016; 65:204-11. [PMID: 27522010 DOI: 10.1016/j.reprotox.2016.08.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 07/27/2016] [Accepted: 08/10/2016] [Indexed: 02/06/2023]
Abstract
The effects of verbascoside (VB), added at nanomolar concentrations during in vitro maturation (IVM) of juvenile sheep oocytes, on in vitro embryo development and its mechanisms of action at the oocyte level were analyzed. Developmental rates, after IVM in the presence/absence of VB (1nM for 24h; 1nM for 2h; 10nM for 2h), were evaluated. The bioenergetic/oxidative status of oocytes matured after IVM in the presence/absence of 1nM VB for 24h was assessed by confocal analysis of mitochondria and reactive oxygen species (ROS), lipid peroxidation (LPO) assay, and quantitative PCR of bioenergy/redox-related genes. The addition of 1nM VB during 24h IVM significantly increased blastocyst formation and quality. Verbascoside reduced oocyte ROS and LPO and increased mitochondria/ROS colocalization while keeping mitochondria activity and gene expression unchanged. In conclusion, supplementation with nanomolar concentrations of VB during IVM, in the juvenile sheep model, promotes embryo development by protecting the oocyte against oxidative stress.
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