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IVF Blastocyst Transfer

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https://www.readbyqxmd.com/read/29788467/reply-an-informed-decision-between-cleavage-stage-and-blastocyst-stage-transfers-in-ivf-requires-data-on-the-transfers-of-frozen-thawed-embryos
#1
Lanlin Yang, Ge Lin
No abstract text is available yet for this article.
May 18, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29788406/an-informed-decision-between-cleavage-stage-and-blastocyst-stage-transfer-in-ivf-requires-data-on-the-transfers-of-frozen-thawed-embryos
#2
Simone Cornelisse, Kathrin Fleischer, Sjoerd Repping, Sebastiaan Mastenbroek
No abstract text is available yet for this article.
May 18, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29786036/overall-blastocyst-quality-trophectoderm-grade-and-inner-cell-mass-grade-predict-pregnancy-outcome-in-euploid-blastocyst-transfer-cycles
#3
Yan-Yu Zhao, Yang Yu, Xiao-Wei Zhang
Background: Despite recent advances that have improved the pregnancy success rates that can be achieved via in vitro fertilization (IVF) therapy, it is not yet clear which blastocyst morphological parameters best predict the outcomes of single blastocyst transfer. In addition, most of the previous studies did not exclude the effect of embryo aneuploidy on blastocysts transfer. Thus, the present study investigated the predictive value of various parameters on the pregnancy outcomes achieved via the transfer of frozen euploid blastocysts...
June 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29764212/the-clinical-application-of-single-sperm-based-snp-haplotyping-for-pgd-of-osteogenesis-imperfecta
#4
Linjun Chen, Zhenyu Diao, Zhipeng Xu, Jianjun Zhou, Guijun Yan, Haixiang Sun
Osteogenesis imperfecta (OI) is a genetically heterogeneous disorder, presenting either autosomal dominant, autosomal recessive or X-linked inheritance patterns. The majority of OI cases are autosomal dominant and are caused by heterozygous mutations in either the COL1A1 or COL1A2 gene. In these dominant disorders, allele dropout (ADO) can lead to misdiagnosis in preimplantation genetic diagnosis (PGD). Polymorphic markers linked to the mutated genes have been used to establish haplotypes for identifying ADO and ensuring the accuracy of PGD...
May 15, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29740477/determination-of-oocyte-manipulation-zygote-manipulation-and-genome-reprogramming-effects-on-the-transcriptomes-of-bovine-blastocysts
#5
Byungkuk Min, Jung S Park, Yong-Kook Kang
Somatic cell nuclear transfer (scNT) embryos suffer from damage caused by micro-operation (manipulation) and inefficient genome reprograming that hinder their normal development at different levels and in distinct ways. These two effects are inseparable in the nature of the scNT embryo, although methods to separately measure them are needed to improve scNT technology and evaluate incoming reprogramming tools. As an attempt to meet these demands, we made bovine sham nuclear-transfer (shNT) blastocysts, special embryos made with a standard nuclear-transfer procedure at the zygote stage, while retaining an intact genome...
2018: Frontiers in Genetics
https://www.readbyqxmd.com/read/29737471/does-the-endometrial-receptivity-array-really-provide-personalized-embryo-transfer
#6
Rawad Bassil, Robert Casper, Nivin Samara, Tzu-Bou Hsieh, Eran Barzilay, Raoul Orvieto, Jigal Haas
PURPOSE: The aim of the present study was to determine the percentage of infertility patients who are diagnosed with a non-receptive endometrium according to the endometrial receptivity array (ERA) test and to examine whether adjusting the embryo transfer day according to the proposed shift in the window of implantation improves the pregnancy rate compared to non-ERA-tested patients. METHODS: A single-center retrospective cohort study, including 53 consecutive good prognosis patients (0-2 previous frozen embryo transfers) admitted to our IVF unit for a mock cycle prior to their frozen day-5 embryo (blastocyst) transfer cycle...
May 8, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29734084/association-between-early-%C3%AE-hcg-kinetics-blastocyst-morphology-and-pregnancy-outcome-in-a-single-blastocyst-transfer-program
#7
Jean-Maxime Girard, Mathilde Simorre, Florence Leperlier, Arnaud Reignier, Tiphaine Lefebvre, Paul Barrière, Thomas Fréour
OBJECTIVE(S): Beta human chorionic gonadotrophin (β-hCG) is secreted by placenta and detectable in maternal serum a few days after embryo implantation. The evolution of β-hCG serum levels is commonly used to confirm early pregnancy and differentiate normal pregnancies from others, either in spontaneous pregnancies or after IVF. However, little is known on the eventual link between blastocyst quality in IVF, pregnancy outcome, and βhCG kinetics. The objective was to evaluate the association between early βhCG rise, blastocyst morphology and pregnancy evolution in a single-blastocyst transfer program STUDY DESIGN: This retrospective cohort study was conducted in a University-affiliated IVF center in 441 couples undergoing 455 single blastocyst transfer cycles leading to a positive pregnancy test 12 days afterwards...
April 30, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29733525/m-carboxycinnamic-acid-bishydroxamide-improves-developmental-competence-reduces-apoptosis-and-alters-epigenetic-status-and-gene-expression-pattern-in-cloned-buffalo-bubalus-bubalis-embryos
#8
H Agrawal, N L Selokar, M Saini, M K Singh, M S Chauhan, P Palta, S K Singla, R S Manik
Incomplete or aberrant reprogramming of nuclear genome is one of the major problems in somatic cell nuclear transfer. In this study, we studied the effect of histone deacetylase inhibitor m-carboxycinnamic acid bishydroxamide (CBHA) on in vitro development of buffalo embryos produced by Hand-made cloning. Cloned embryos were treated with CBHA (0, 5, 10, 20 or 50 μM) for 10 hr from the start of reconstruction till activation. At 10 μM, but not at other concentrations examined, CBHA increased (p < ...
May 7, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29725911/continuous-embryo-culture-elicits-higher-blastulation-but-similar-cumulative-delivery-rates-than-sequential-a-large-prospective-study
#9
Danilo Cimadomo, C Scarica, R Maggiulli, G Orlando, D Soscia, L Albricci, S Romano, F Sanges, F M Ubaldi, L Rienzi
PURPOSE: To assess whether continuous embryo culture involves better embryological and/or clinical outcomes than sequential. METHODS: Prospective study at a private IVF center. All consecutive IVF cycles (September 2013-2015) fulfilling the inclusion criteria underwent embryo culture in either Continuous-Single-Culture-Media (CSCM, n = 972) or sequential media (Quinn's Advantage, n = 514), respectively. ICSI, blastocyst culture in either standard (MINC) or undisturbed (Embryoscope) incubation, transfer (until September 2016), and pregnancy follow-up (until September 2017) were performed...
May 3, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29707686/analysis-of-endoplasmic-reticulum-er-stress-induced-during-somatic-cell-nuclear-transfer-scnt-process-in-porcine-scnt-embryos
#10
Hwa-Yeon Lee, Hyo-Kyung Bae, Bae-Dong Jung, Seunghyung Lee, Choon-Keun Park, Boo-Keun Yang, Hee-Tae Cheong
This study investigates the endoplasmic reticulum (ER) stress and subsequent apoptosis in duced during somatic cell nuclear transfer (SCNT) process of porcine SCNT embryos. Porcine SCNT and in vitro fertilization (IVF) embryos were sampled at 3 h and 20 h after SCNT or IVF and at the blastocyst stage for mRNA extraction. The x-box binding protein 1 (Xbp1) mRNA and the expressions of ER stress-associated genes were confirmed by RT-PCR or RT-qPCR. Apoptotic gene expression was analyzed by RT-PCR. Before commencing SCNT, somatic cells treated with tunicamycin (TM), an ER stress inducer, confirmed the splicing of Xbp1 mRNA and increased expressions of ER stress-associated genes...
March 2018: Balsaeng'gwa Saengsig
https://www.readbyqxmd.com/read/29704227/low-estradiol-responses-in-oocyte-donors-undergoing-gonadotropin-stimulation-do-not-influence-clinical-outcomes
#11
Katherine L Palmerola, Briana J Rudick, Rogerio A Lobo
PURPOSE: To examine the effect of low and very low estradiol responses in oocyte donors receiving gonadotropins on clinical outcomes of donor in vitro fertilization (IVF) cycles and to identify possible mechanisms responsible for low estradiol response. METHODS: This is a retrospective cohort study of oocyte donors undergoing antagonist IVF cycles with progression to oocyte retrieval between January 2010 and December 2016 at a single urban academic fertility center...
April 27, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29672007/how-general-semen-quality-influences-the-blastocyst-formation-rate-analysis-of-4205-ivf-cycles
#12
Mariana M Piccolomini, Tatiana Cs Bonetti, Eduardo La Motta, Paulo C Serafini, Jose R Alegretti
OBJECTIVE: To select embryos with higher implantation potential, the extended culture has been the most frequently applied strategy worldwide, and consequently leads to higher live birth rates per transfer. Sperm quality is a determining feature, and it may influence the outcomes of IVF from fertilization to embryo development. Therefore, we hypothesize that blastocyst formation may also be impaired by general semen quality. METHODS: We analyzed 4205 IVF cycles...
June 1, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29669005/fertility-and-neonatal-outcomes-of-embryos-achieving-blastulation-on-day-7-are-they-of-clinical-value
#13
Tong Du, Yun Wang, Yong Fan, Shiyi Zhang, Zhiguang Yan, Weina Yu, Qianwen Xi, Qiuju Chen, Ben W Mol, Qifeng Lyu, Yanping Kuang
STUDY QUESTION: Is transferring embryos that achieve blastulation on Day 7 effective and safe? SUMMARY ANSWER: Embryos that achieve blastulation on Day 7 resulted in clinically relevant rates of clinical pregnancy (32.5%) and live birth (25.2%), and newborns have a similar risk of low birth weight, congenital malformations or early neonatal death compared with those derived from Days 5 and 6 blastocysts. WHAT IS KNOWN ALREADY: Potential advantages of blastocyst transfer over cleavage embryo transfer have led to a shift toward the former in IVF practice...
June 1, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29648640/should-extended-blastocyst-culture-include-day-7
#14
Elizabeth R Hammond, Lynsey M Cree, Dean E Morbeck
Extended culture to the blastocyst stage is widely practised, improving embryo selection and promoting single embryo transfer. Selection of useable blastocysts typically occurs on Days 5 and 6 of embryo culture. Embryos not suitable for transfer, biopsy or cryopreservation after Day 6 are routinely discarded. Some embryos develop at a slower rate, however, forming blastocysts on Day 7 of culture. Day 7 blastocysts can be viable, they can be of top morphological grade, euploid and result in a healthy live birth...
June 1, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29616311/serum-levels-of-pentraxin-3-differ-significantly-at-the-time-of-blastocyst-transfer-depending-on-implantation-success-a-pilot-study
#15
Alexander Freis, Kyra Von Horn, Tamara Göggl, Stephanie Hecht, Sabine Roesner, Thomas Strowitzki, Ariane Germeyer
OBJECTIVE: Many approaches try to identify the underlying molecular mechanisms to detect new potential biomarkers for successful artificial reproductive therapies. One factor has been described as a possible regulator of inflammation during implantation: Pentraxin 3 (PTX3), which seems to be essential for female fertility on one hand, but whose overexpression has been described in many obstetric complications based on abnormal placentation on the other hand. Therefore, we investigated if serum levels of PTX3 at the time of embryo transfer differ between women with an ongoing pregnancy compared to those without implantation...
June 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29605408/cumulus-oophorus-complexes-favor-physiologic-selection-of-spermatozoa-for-intracytoplasmic-sperm-injection
#16
Caizhu Wang, Guixue Feng, Jinhui Shu, Hong Zhou, Bo Zhang, Huanhua Chen, Ruoyun Lin, Xianyou Gan, Zhulian Wu, Tinglv Wei
OBJECTIVE: To investigate the effectiveness of cumulus oophorus complexes (COCs) in the physiologic selection of spermatozoa for intracytoplasmic sperm injection (ICSI). DESIGN: A prospective sibling oocytes study. SETTING: Center of reproductive medicine. PATIENT(S): Couples undergoing ICSI during 2016, females aged ≤38 years, and at least six metaphase II (MII) oocytes retrieved. Sixty patients were included in the study...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29574310/high-serum-igf-1-levels-are-associated-with-pregnancy-loss-following-frozen-thawed-euploid-embryo-transfer-cycles
#17
Mohamad Irani, Dimitrios Nasioudis, Steven S Witkin, Vinay Gunnala, Steven D Spandorfer
An elevated level of insulin growth factor (IGF-1) in rat uterine fluid has been shown to exert detrimental effects of embryo development possibly leading to an increase in pregnancy loss. Interestingly, the administration of somatostatin to rats undergoing superovulation reduced IGF-1 levels in uterine luminal fluid and thus reversed its deleterious effects on embryo development and increased the number of normal embryos. Therefore, we investigated whether serum levels of IGF-1 correlate with the incidence of pregnancy loss following IVF...
June 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29564832/time-lapse-imaging-for-the-detection-of-chromosomal-abnormalities-in-primate-preimplantation-embryos
#18
Brittany L Daughtry, Shawn L Chavez
The use of time-lapse microscopic imaging has proven to be a powerful tool for the study of mitotic divisions and other cellular processes across diverse species and cell types. Although time-lapse monitoring (TLM) of human preimplantation development was first introduced to the in vitro fertilization (IVF) community several decades ago, it was not until relatively recently that TLM systems were commercialized for clinical embryology purposes. Traditionally, human IVF embryos are assessed by successful progression and morphology under a stereomicroscope at distinct time points prior to selection for transfer...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29551013/the-interval-transfer-of-a-frozen-thawed-embryo-is-more-successful-than-a-fresh-embryo-transfer-for-women-undergoing-ivf-with-recurrent-implantation-failure-after-cleavage-stage-embryo-biopsy
#19
Jennifer C Pontré, John P Ryan, Andy Tan, Roger J Hart
BACKGROUND: Recurrent implantation failure (RIF) is repeated unsuccessful embryo transfers (ETs). AIMS: To identify predictive embryonic markers of implantation in RIF, following pre-implantation genetic screening (PGS) of cleavage stage embryos, after accounting for male and female factors. MATERIALS AND METHODS: Retrospective analysis of RIF patients undergoing PGS after correction of modifiable causes. RESULTS: Eighty-four patients underwent 140 in vitro ferilisation cycles...
March 18, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29546361/single-embryo-transfer-by-day-3-time-lapse-selection-versus-day-5-conventional-morphological-selection-a-randomized-open-label-non-inferiority-trial
#20
Lanlin Yang, Sufen Cai, Shuoping Zhang, Xiangyi Kong, Yifan Gu, Changfu Lu, Jing Dai, Fei Gong, Guangxiu Lu, Ge Lin
STUDY QUESTION: Does single cleavage-stage (Day 3) embryo transfer using a time-lapse (TL) hierarchical classification model achieve comparable ongoing pregnancy rates (OPR) to single blastocyst (Day 5) transfer by conventional morphological (CM) selection? SUMMARY ANSWER: Day 3 single embryo transfer (SET) with a hierarchical classification model had a significantly lower OPR compared with Day 5 SET with CM selection. WHAT IS KNOWN ALREADY: Cleavage-stage SET is an alternative to blastocyst SET...
May 1, 2018: Human Reproduction
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