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IVF Blastocyst Transfer

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https://www.readbyqxmd.com/read/28810691/improvement-of-implantation-potential-in-mouse-blastocysts-derived-from-ivf-by-combined-treatment-with-prolactin-epidermal-growth-factor-and-4-hydroxyestradiol
#1
Miki Takeuchi, Misato Seki, Etsuko Furukawa, Akihito Takahashi, Kyosuke Saito, Mitsuru Kobayashi, Kenji Ezoe, Emiko Fukui, Midori Yoshizawa, Hiromichi Matsumoto
STUDY QUESTION: Can supplementation of medium with prolactin (PRL), epidermal growth factor (EGF) and 4-hydroxyestradiol (4-OH-E2) prior to embryo transfer improve implantation potential in mouse blastocysts derived from IVF? SUMMARY ANSWER: Combined treatment with PRL, EGF and 4-OH-E2 improves mouse blastocyst implantation rates, while alone, each factor is ineffective. WHAT IS KNOWN ALREADY: Blastocyst dormancy during delayed implantation caused by ovariectomy is maintained by continued progesterone treatment in mice, and estrogen injection rapidly activates blastocysts to implantation-induced status in vivo...
August 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28799183/utilization-of-porcine-in%C3%A2-vitro-produced-parthenogenetic-embryos-for-co-transfer-with-vitrified-and-warmed-embryos
#2
Yoshiyuki Nakamura, Kazuhiro Kikuchi
The present study was conducted to evaluate the possibility of using in vitro-produced parthenogenetic (PA) embryos for co-transfer with morulae that had been collected in vivo and cryopreserved. The proportion of PA blastocysts (20.5%) was higher than that of their in vitro fertilization (IVF) counterparts (16.6%). Although there were no differences in morphology or diameter between the two groups, the number of cells in early PA blastocysts after in vitro culture for 6 days was lower than for IVF blastocysts (25...
August 10, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28795845/analysis-of-embryo-intactness-and-developmental-potential-following-slow-freezing-and-vitrification
#3
Lan Yu, Chanwei Jia, Yonglian Lan, Rui Song, Liying Zhou, Ying Li, Yu Liang, Shuyu Wang
The aim of this study was to identify the parameters that are related to intactness and developmental potential of a day 3 embryo after warming to improve the selection criteria used to cryopreserve and transfer embryos. We also sought to compare slow freezing and vitrification methods of cryopreservation and to evaluate the viability of non-intact embryos. Embryos warmed following slow freezing (n=220) or vitrification (n=522) were divided into 3 groups according to the proportion of surviving blastomeres (I<50%; II=50-99%; and III=100%)...
August 10, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/28780721/repeated-collection-of-conjoined-oocytes-from-a-patient-with-polycystic-ovary-syndrome-resulting-in-one-successful-live-birth-from-frozen-thawed-blastocyst-transfer-a-case-report
#4
Kohji Yano, Naoko Hashida, Toshiko Kubo, Ikuko Ohashi, Azusa Koizumi, Rumi Kageura, Kouichi Furutani, Chieko Yano
Few cases have been reported in which the aspiration of a single follicle led to the recovery of two conjoined oocytes surrounded by a single zona pellucida. This report describes a successful embryo transfer with subsequent live birth derived from conjoined oocytes, and a later pair of conjoined oocytes in the same patient. After oocyte retrieval from a patient with polycystic ovary syndrome, two pairs of conjoined oocytes were collected. One oocyte was fertilized using in vitro fertilization (IVF) and developed to the blastocyst stage...
August 5, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28776828/the-quality-after-culture-in%C3%A2-vitro-or-in%C3%A2-vivo-of-porcine-oocytes-matured-and-fertilized-in%C3%A2-vitro-and-their-ability-to-develop-to-term
#5
Yoshiyuki Nakamura, Sigeyuki Tajima, Kazuhiro Kikuchi
The quality of porcine blastocysts produced in vitro is poor in comparison with those that develop in vivo. We examined the quality of in vitro-matured and fertilized (IVM/IVF) oocytes, their abilities to develop to blastocysts under in vivo and in vitro conditions, and the potential of the embryos to develop to term after transfer. IVM/IVF oocytes were either transferred and the embryos recovered on Days 5 and 6 (100% and 87.5%, respectively) ('ET-vivo' embryos), or cultured in vitro for 5 or 6 days ('IVC' embryos)...
August 4, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28754548/impact-of-the-outcome-of-fresh-blastocyst-transfer-on-the-subsequent-frozen-thawed-blastocyst-transfer-cycle
#6
Tarek El-Toukhy, Julia Y Kopeika, Yusuf Beebeejaun, Omar El Tokhy, Jyotsna Pundir, Yacoub Khalaf
The objective of this observational study was to assess the influence of the outcome of fresh blastocyst transfer on the success rate of the subsequent sibling frozen-thawed blastocyst transfer (FBT) cycle. In total, 1639 FBT cycles were divided into two groups: Group A (n = 698) cycles in which a positive pregnancy test result was achieved and Group B (n = 941) cycles in which no pregnancy was achieved in the preceding fresh IVF cycle. Mean age at cryopreservation, basal FSH level, number of oocytes retrieved, number of embryos transferred in the fresh cycle and survival rate of the thawed blastocysts in the FBT cycle were comparable between the two groups...
July 13, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28720156/fmr1-cgg-repeat-expansion-mutation-detection-and-linked-haplotype-analysis-for-reliable-and-accurate-preimplantation-genetic-diagnosis-of-fragile-x-syndrome
#7
Indhu-Shree Rajan-Babu, Mulias Lian, Felicia S H Cheah, Min Chen, Arnold S C Tan, Ethiraj B Prasath, Seong Feei Loh, Samuel S Chong
Fragile X mental retardation 1 (FMR1) full-mutation expansion causes fragile X syndrome. Trans-generational fragile X syndrome transmission can be avoided by preimplantation genetic diagnosis (PGD). We describe a robust PGD strategy that can be applied to virtually any couple at risk of transmitting fragile X syndrome. This novel strategy utilises whole-genome amplification, followed by triplet-primed polymerase chain reaction (TP-PCR) for robust detection of expanded FMR1 alleles, in parallel with linked multi-marker haplotype analysis of 13 highly polymorphic microsatellite markers located within 1 Mb of the FMR1 CGG repeat, and the AMELX/Y dimorphism for gender identification...
July 19, 2017: Expert Reviews in Molecular Medicine
https://www.readbyqxmd.com/read/28706605/embryonic-stem-cell-conditioned-medium-supports-in-vitro-maturation-of-mouse-oocytes
#8
Saber Miraki, Aram Mokarizadeh, Omid Banafshi, Vahideh Assadollahi, Mahdad Abdi, Daem Roshani, Fardin Fathi
BACKGROUND: This study aimed to investigate the maturation and fertilization rates of immature mouse oocytes using Embryonic Stem Cell Conditioned Medium (ESCM). METHODS: Germinal Vesicle (GV) stage oocytes were observed in 120 NMRI mice, aged 4-6 weeks. GV oocytes with or without cumulus cells were subjected to IVM in either ESCM, Embryonic Stem Cell Growth Medium (ESGM), or α-minimum essential medium (α-MEM). After recording the Metaphase II (MII) oocyte maturation rate, the oocytes were fertilized in vitro...
July 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28670426/comparative-stepwise-pattern-of-reactive-oxygen-species-production-during-in-vitro-development-of-fertilized-and-nuclear-transferred-goat-embryos
#9
Mehdi Hajian, Sayed Morteza Hosseini, Somayyeh Ostadhosseini, Mohammad Hossein Nasr-Esfahani
BACKGROUND: A unique feature of embryo metabolism is production of reactive oxygen species (ROS). It is well established that during in vitro culture, ROS levels increase over normal ranges observed for embryos developed in vivo. This study evaluates and compares the stepwise pattern of ROS production during in vitro development of reconstructed goat embryos produced by zona-free method of somatic cell nuclear transfer (SCNT). Furthermore, the pattern of ROS production of SCNT embryos were compared with zona free embryos derived from in vitro fertilization (IVF)...
July 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28669682/differential-expression-pattern-of-key-regulatory-developmental-genes-in-pre-implant-zona-free-cloned-vs-in%C3%A2-vitro-fertilized-goat-embryos
#10
Dharmendra Kumar, Bikash Chandra Sarkhel
The success of Somatic cell nuclear transfer (SCNT) primarily depends on the extent of reprogramming of donor cells genome. The error of reprogramming may lead to inappropriate expression of embryonic genes at any stage of development. Under the present study the relative expression of different genes related to pluripotency (Oct-4 and Nanog), growth factors (IGF-2 and IGF-2R) and DNA methyltransferase gene (Dnmt-1) was evaluated in SCNT embryos at 8-16 cells, morula and blastocyst stages as compared to IVF group...
June 29, 2017: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/28665977/microrna-148a-overexpression-improves-the-early-development-of-porcine-somatic-cell-nuclear-transfer-embryos
#11
Ping Wang, Xiangping Li, Lihua Cao, Shihai Huang, Haiyan Li, Yan Zhang, Ting Yang, Jianrong Jiang, Deshun Shi
Incomplete epigenetic reprogramming of donor cell nuclei is one of the main contributors to the low efficiency of somatic cell nuclear transfer (SCNT). To improve the success of SCNT, somatic cell DNA methylation levels must be reduced to those levels found in totipotent embryonic cells. Recent studies have demonstrated that miR-148a can affect DNA methylation via DNMT1 modulation in various cancers. Therefore, the focus of this study was to examine the influence of miR-148a on DNA methylation in donor cells and in SCNT embryo development...
2017: PloS One
https://www.readbyqxmd.com/read/28650953/de-novo-paternal-fbn1-mutation-detected-in-embryos-before-implantation
#12
Shuling Wang, Ziru Niu, Hui Wang, Minyue Ma, Wei Zhang, Shu Fang Wang, Jun Wang, Hong Yan, Yifan Liu, Na Duan, Xiandong Zhang, Yuanqing Yao
BACKGROUND Marfan syndrome (MFS) is an autosomal dominant disease caused by mutations in the Fibrillin (FBN)1 gene and characterized by disorders in the cardiovascular, skeletal, and visual systems. The diversity of mutations and phenotypic heterogeneity of MFS make prenatal molecular diagnoses difficult. In this study, we used pre-implantation genetic diagnosis (PGD) to identify the pathogenic mutation in a male patient with MFS and to determine whether his offspring would be free of the disease. MATERIAL AND METHODS The history and pedigree of the proband were analyzed...
June 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28647787/using-stem-cell-oxygen-physiology-to-optimize-blastocyst-culture-while-minimizing-hypoxic-stress
#13
REVIEW
Alan Bolnick, Awoniyi O Awonuga, Yu Yang, Mohammed Abdulhasan, Yufen Xie, Sichang Zhou, Elizabeth E Puscheck, Daniel A Rappolee
This review is a response to the Fellows Forum on testing 2% oxygen for best culture of human blastocysts (J Ass Reprod Gen 34:303-8, 1; J Ass Reprod Gen 34:309-14, 2) prior to embryo transfer. It is a general analysis in support of the position that an understanding of stem cell physiology and responses to oxygen are necessary for optimization of blastocyst culture in IVF and to enhance reproductive success in fertile women.
June 24, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28585131/predictive-value-of-initial-serum-human-chorionic-gonadotropin-levels-for-pregnancies-after-single-fresh-and-frozen-blastocyst-transfer
#14
Wei-E Zhao, Yu-Jie Li, Jian-Ping Ou, Peng Sun, Wen-Qiu Chen, Xiao-Yan Liang
As one of the earliest markers for predicting pregnancy outcomes, human chorionic gonadotropin (hCG) values have been inconclusive on reliability of the prediction after frozen and fresh embryo transfer (ET). In this retrospective study, patients with positive hCG (day 12 after transfer) were included to examine the hCG levels and their predictive value for pregnancy outcomes following 214 fresh and 1513 vitrified-warmed single-blastocyst transfer cycles. For patients who got clinical pregnancy, the mean initial hCG value was significantly higher after frozen cycles than fresh cycles, and the similar result was demonstrated for patients with live births (LB)...
June 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28583140/live-birth-after-fresh-versus-frozen-single-blastocyst-transfer-frefro-blastocyst-study-protocol-for-a-randomized-controlled-trial
#15
Daimin Wei, Yun Sun, Jiayin Liu, Xiaoyan Liang, Yimin Zhu, Yuhua Shi, Zi-Jiang Chen
BACKGROUND: Multiple pregnancies are one of the major safety concerns of in vitro fertilization (IVF) due to the increased risk of maternal and neonatal complications. Single embryo transfer is the most effective way to reduce the risk of multiple pregnancies. Selection of the embryo and optimization of the implantation environment are crucial to retain the success rate when the number of transferred embryos is diminished. Fresh embryo transfer with supra-physiological levels of hormones has been suggested to have an adverse effect on implantation...
June 5, 2017: Trials
https://www.readbyqxmd.com/read/28560610/association-between-growth-dynamics-morphological-parameters-the-chromosomal-status-of-the-blastocysts-and-clinical-outcomes-in-ivf-pgs-cycles-with-single-embryo-transfer
#16
Oleksii O Barash, Kristen A Ivani, Susan P Willman, Evan M Rosenbluth, Deborah S Wachs, Mary D Hinckley, Sara Pittenger Reid, Louis N Weckstein
PURPOSE: The purpose of the present study is to examine interconnection between speed of embryo development, the genetic status of the blastocysts, and clinical outcomes in IVF preimplantation genetic screening (PGS) cycles with single embryo transfer (SET). METHODS: The retrospective comparative study has been performed between January 2013 and January 2016. Seven hundred thirty-seven cycles of IVF treatment with PGS, followed by 503 SETs, were included in the study...
August 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28555358/complex-chromosomal-rearrangement-a-lesson-learned-from-pgs
#17
Tsvia Frumkin, Sagit Peleg, Veronica Gold, Adi Reches, Shiri Asaf, Foad Azem, Dalit Ben-Yosef, Mira Malcov
PURPOSE: The aim of the study is to report a case of non-diagnosed complex chromosomal rearrangement (CCR) identified by preimplantation genetic screening (PGS) followed by preimplantation genetic diagnosis (PGD) which resulted in a pregnancy and delivery of healthy offspring. METHODS: A 29-year-old woman and her spouse, both diagnosed previously with normal karyotypes, approached our IVF-PGD center following eight early spontaneous miscarriages. PGS using chromosomal microarray analysis (CMA) was performed on biopsied trophectoderm...
August 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28552887/selection-of-viable-in-vitro-fertilized-bovine-embryos-using-time-lapse-monitoring-in-microwell-culture-dishes
#18
Satoshi Sugimura, Tomonori Akai, Kei Imai
Conventionally, in vitro-fertilized (IVF) bovine embryos for transfer are morphologically evaluated at day 7-8 of embryo culture. This method is, however, subjective and results in unreliable selection. We previously described a novel selection system for IVF bovine blastocysts for transfer that traces the development of individual embryos with time-lapse monitoring in our specially developed microwell culture dishes (LinKID micro25). The system can noninvasively identify prognostic factors that reflect viability after transfer...
May 26, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/28525345/in-vitro-production-of-sudanese-camel-camelus-dromedarius-embryos-from-epididymal-spermatozoa-and-follicular-oocytes-of-slaughtered-animals
#19
A E Abdelkhalek, Sh A Gabr, W A Khalil, Sh M Shamiah, L Pan, G Qin, M H Farouk
Application of assisted reproductive technology in camelidea, such as artificial insemination (AI) and embryo transfer, has been slow in comparison to that for other livestock species. In Egypt, there are few attempts to establish in vitro maturation (IVM) and fertilization (IVF) techniques in dromedary camel. The present study was carried out to produce Sudanese camel embryos using in vitro matured oocytes and epididymal spermatozoa. Dromedary camel ovaries were collected from abattoirs and then, the oocytes were aspirated from all the visible follicles on the ovarian surface (~2-8 mm in a diameter)...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28520729/top-quality-blastocyst-formation-rates-in-relation-to-progesterone-levels-on-the-day-of-oocyte-maturation-in-gnrh-antagonist-ivf-icsi-cycles
#20
V S Vanni, E Somigliana, M Reschini, L Pagliardini, E Marotta, S Faulisi, A Paffoni, P Vigano', W Vegetti, M Candiani, E Papaleo
Cycles with progesterone elevation during controlled ovarian stimulation (COS) for IVF/ICSI are commonly managed with a "freeze-all" strategy, due to a well-recognized detrimental effect of high progesterone levels on endometrial receptivity. However, also a detrimental effect of elevated progesterone on day-3 embryo quality has recently been found with regards to top quality embryo formation rate. Because blastocyst culture and cryopreservation are largely adopted, we deemed relevant to determine whether this detrimental effect is also seen on blastocyst quality on day 5-6...
2017: PloS One
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