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Embryo transfer

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https://www.readbyqxmd.com/read/29452422/asynchronous-and-pathological-windows-of-implantation-two-causes-of-recurrent-implantation-failure
#1
P Sebastian-Leon, N Garrido, J Remohí, A Pellicer, P Diaz-Gimeno
STUDY QUESTION: Is endometrial recurrent implantation failure (RIF) only a matter of an asynchronous (displaced) window of implantation (WOI), or could it also be a pathological (disrupted) WOI? SUMMARY ANSWER: Our predictive results demonstrate that both displaced and disrupted WOIs exist and can present independently or together in the same RIF patient. WHAT IS KNOWN ALREADY: Since 2002, many gene expression signatures associated with endometrial receptivity and RIF have been described...
February 14, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29449939/innovative-approaches-to-genome-editing-in-avian-species
#2
REVIEW
Caitlin A Cooper, Timothy J Doran, Arjun Challagulla, Mark L V Tizard, Kristie A Jenkins
The tools available for genome engineering have significantly improved over the last 5 years, allowing scientist to make precise edits to the genome. Along with the development of these new genome editing tools has come advancements in technologies used to deliver them. In mammals genome engineering tools are typically delivered into in vitro fertilized single cell embryos which are subsequently cultured and then implanted into a recipient animal. In avian species this is not possible, so other methods have been developed for genome engineering in birds...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29447664/prevention-of-in-vitro-fertilization-twins-should-focus-on-maximizing-single-embryo-transfer-versus-twins-are-an-acceptable-complication-of-in-vitro-fertilization
#3
EDITORIAL
David R Meldrum, Eli Y Adashi, V Gabriel Garzo, Norbert Gleicher, Jean Parinaud, Anja Pinborg, Brad Van Voorhis
No abstract text is available yet for this article.
February 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29447173/dynamic-changes-of-setd2-a-histone-h3k36-methyltransferase-in-porcine-oocytes-ivf-and-scnt-embryos
#4
Yun Fei Diao, Tao Lin, Xiaoxia Li, Reza K Oqani, Jae Eun Lee, So Yeon Kim, Dong Il Jin
SETD2 (SET domain containing protein 2) acts as a histone H3 lysine 36 (H3K36)-specific methyltransferase and may play important roles in active gene transcription in human cells. However, its expression and role in porcine oocytes and preimplantation embryos are not well understood. Here, we used immunofluorescence and laser scanning confocal microscopy to examine SETD2 expression in porcine fetal fibroblasts, oocytes, and preimplantation embryos derived from in vitro fertilization (IVF), parthenogenetic activation (PA), and somatic cell nuclear transfer (SCNT)...
2018: PloS One
https://www.readbyqxmd.com/read/29447147/assisted-reproductive-technology-surveillance-united-states-2015
#5
Saswati Sunderam, Dmitry M Kissin, Sara B Crawford, Suzanne G Folger, Sheree L Boulet, Lee Warner, Wanda D Barfield
PROBLEM/CONDITION: Since the first U.S. infant conceived with assisted reproductive technology (ART) was born in 1981, both the use of ART and the number of fertility clinics providing ART services have increased steadily in the United States. ART includes fertility treatments in which eggs or embryos are handled in the laboratory (i.e., in vitro fertilization [IVF] and related procedures). Although the majority of infants conceived through ART are singletons, women who undergo ART procedures are more likely than women who conceive naturally to deliver multiple-birth infants...
February 16, 2018: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/29446977/establishment-growth-proliferation-and-gene-expression-of-buffalo-bubalus-bubalis-transgenic-fetal-fibroblasts-containing-human-insulin-gene-and-production-of-embryos-by-handmade-cloning-using-these-cells
#6
Parul Mehta, Ramakant Kaushik, Karn Pratap Singh, Ankur Sharma, Manoj Kumar Singh, Manmohan Singh Chauhan, Prabhat Palta, Suresh Kumar Singla, Radhey Sham Manik
The aim of the present study was to compare transgenic cells, containing human insulin gene kept under the control of mammary gland-specific buffalo beta-lactoglobulin promoter, and their counterparts, that is, nontransgenic cells, for examining their potential for the production of embryos following somatic cell nuclear transfer (SCNT). The gene construct was delivered into buffalo fetal fibroblasts (BFF) by nucleofection following which, the transfected cells were selected by culture in the presence of G418 for 3 weeks...
February 15, 2018: Cellular Reprogramming
https://www.readbyqxmd.com/read/29445356/dhea-supplementation-confers-no-additional-benefit-to-that-of-growth-hormone-on-pregnancy-and-live-birth-rates-in-ivf-patients-categorized-as-poor-prognosis
#7
Kevin N Keane, Peter M Hinchliffe, Philip K Rowlands, Gayatri Borude, Shanti Srinivasan, Satvinder S Dhaliwal, John L Yovich
Background: In vitro fertilization (IVF) patients receive various adjuvant therapies to enhance success rates, but the true benefit is actively debated. Growth hormone (GH) and dehydroepiandrosterone (DHEA) supplementation were assessed in women undergoing fresh IVF transfer cycles and categorized as poor prognosis from five criteria. Methods: Data were retrospectively analyzed from 626 women undergoing 626 IVF cycles, where they received no adjuvant, GH alone, or GH-DHEA in combination...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29445070/development-to-term-of-sheep-embryos-reconstructed-after-inner-cell-mass-trophoblast-exchange
#8
Pasqualino Loi, Cesare Galli, Giovanna Lazzari, Kazutsugu Matsukawa, Josef Fulka Jr, Frank Goeritz, Thomas B Hildebrandt
Here we report in vitro and term development of sheep embryos after the inner cell mass (ICM) from one set of sheep blastocysts were injected into the trophoblast vesicles of another set. We also observed successful in vitro development of chimeric blastocysts made from sheep trophoblast vesicles injected with bovine ICM. First, we dissected ICMs from 35 sheep blastocysts using a stainless steel microblade and injected them into 29 re-expanded sheep trophoblastic vesicles. Of the 25 successfully micromanipulated trophoblastic vesicles, 15 (51...
February 15, 2018: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/29444982/the-unique-features-of-proteins-depicting-the-chicken-amniotic-fluid
#9
Mylène Da Silva, Clara Dombre, Aurélien Brionne, Philippe Monget, Magali Chessé, Marion De Pauw, Maryse Mills, Lucie Combes-Soia, Valérie Labas, Nicolas Guyot, Yves Nys, Sophie Rehault-Godbert
In many amniotes, the amniotic fluid is depicted as a dynamic milieu that participates in the protection of the embryo (cushioning, hydration, and immunity). However, in birds, the protein profile of the amniotic fluid remains unexplored, even though its proteomic signature is predicted to differ compared to human's. In fact, unlike humans, chicken amniotic fluid does not collect excretory products and its protein composition strikingly changes at mid-development due to the massive inflow of egg white proteins, which are thereafter swallowed by the embryo to support its growth...
February 14, 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29443441/cumulative-live-birth-rates-and-perinatal-outcomes-with-the-use-of-time-lapse-imaging-incubators-for-embryo-culture-a-retrospective-cohort-study-of-1882-art-cycles
#10
Mariano Mascarenhas, Sarah J Fox, Karen Thompson, Adam H Balen
OBJECTIVE: Comparison of live birth rates and the perinatal outcomes after fresh and frozen embryo transfer between time lapse imaging (TLI) and standard culture (SC) incubators. DESIGN: Retrospective cohort study. SETTING: A single tertiary level IVF unit. POPULATION: Women undergoing IVF between January 2014 and October 2015. METHODS: Comparison was done between 1064 IVF cycles using TLI (TLI cycles) and 818 IVF cycles using SC (SC cycles)...
February 14, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29443056/primordial-germ-cell-transplantation-for-crispr-cas9-based-leapfrogging-in-xenopus
#11
Ira L Blitz
The creation of mutant lines by genome editing is accelerating genetic analysis in many organisms. CRISPR/Cas9 methods have been adapted for use in the African clawed frog, Xenopus, a longstanding model organism for biomedical research. Traditional breeding schemes for creating homozygous mutant lines with CRISPR/Cas9-targeted mutagenesis have several time-consuming and laborious steps. To facilitate the creation of mutant embryos, particularly to overcome the obstacles associated with knocking out genes that are essential for embryogenesis, a new method called leapfrogging was developed...
February 1, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29443028/microinjection-of-crispr-cas9-protein-into-channel-catfish-ictalurus-punctatus-embryos-for-gene-editing
#12
Ahmed Elaswad, Karim Khalil, David Cline, Patrick Page-McCaw, Wenbiao Chen, Maximilian Michel, Roger Cone, Rex Dunham
The complete genome of the channel catfish, Ictalurus punctatus, has been sequenced, leading to greater opportunities for studying channel catfish gene function. Gene knockout has been used to study these gene functions in vivo. The clustered regularly interspaced short palindromic repeats/CRISPR associated protein 9 (CRISPR/Cas9) system is a powerful tool used to edit genomic DNA sequences to alter gene function. While the traditional approach has been to introduce CRISPR/Cas9 mRNA into the single cell embryos through microinjection, this can be a slow and inefficient process in catfish...
January 20, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29442466/relationship-between-resistin-and-il-23-levels-in-follicular-fluid-in-infertile-patients-with-endometriosis-undergoing-ivf-et
#13
Qun-Fang Zhang, Guo-Yong Chen, Yun Liu, Hui-Juan Huang, Yan-Feng Song
BACKGROUND: Endometriosis (EM) interferes with the reproductive process and affects the success rate of in vitro fertilization (IVF). Inflammatory cytokines are suggested to play a role in infertility in patients with EM. OBJECTIVES: In this study, we aimed to investigate the relationship between resistin and interleukin 23 (IL-23) levels in follicular fluid (FF) and serum together with the severity of endometriosis and in vitro fertilization/ embryo transfer (IVF-ET) outcome...
December 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29442396/effect-of-hyaluronic-acid-enriched-transfer-medium-on-frozen-thawed-embryo-transfer-outcomes
#14
Wei Fu, Min Yu, Xiao-Jin Zhang
AIM: To determine if hyaluronic acid-enriched transfer medium (HETM) affects the implantation rate (IR) and clinical pregnancy rate (PR) in women undergoing frozen-thawed embryo transfer (FET). METHODS: The records of women who underwent FET from May 2014 to October 2014 were retrospectively reviewed. Outcome measures were IR and PR. RESULTS: In all 1721 cycles of 1632 patients were included in this study. HETM was used for 347 cycles of 342 patients, and standard medium for 1374 cycles of 1290 patients...
February 14, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29440044/acupuncture-and-in-vitro-fertilisation-research-current-and-future-directions
#15
Lee E Hullender Rubin, Belinda J Anderson, LaTasha B Craig
BACKGROUND: Acupuncture is a common adjuvant treatment to support patients undergoing in vitro fertilisation (IVF). However, the impact of acupuncture and the different roles it can play in IVF remain unclear. OBJECTIVE: In this paper, we present an overview and critique of the current evidence on acupuncture's impact on IVF-related stress, describe harms, and propose future directions for investigation. CONCLUSION: Two to three acupuncture sessions performed on or around the day of embryo transfer are insufficient interventions to improve IVF birth outcomes but provide significant IVF-related stress reduction...
February 10, 2018: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/29439618/effect-of-prolonged-gnrh-agonist-downregulation-on-icsi-outcome-in-patients-with-endometriomas-of-less-than-5-cm-a-randomized-controlled-trial
#16
Ahmed Mohamed Maged, Hamsa Rashwan, Maryam Mahmoud, Akmal El-Mazny, Mona Farouk, Doaa S Belal, Heba M Marie
OBJECTIVE: To evaluate the effect of prolonged Gonadotropin releasing hormone (GnRH) agonist downregulation in patients with endometriomas of less than 5 cm on the outcome of the proceeding Intracytoplasmic sperm injection (ICSI) trial. METHODS: In a randomized controlled trial at a university teaching hospital, 90 patients indicated for ICSI and having unilateral single endometrioma of less than 5 cm in diameter were randomized into 2 groups. Group A (45 patients) received the standard long protocol; whereas group B (45 patients) received 3 consecutive Intramuscular (IM) injections of triptorelin 3...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29438059/electroporation-of-postimplantation-mouse-embryos-in-utero
#17
Cheng-Chiu Huang, Abel Carcagno
Gene transfer by electroporation is possible in mouse fetuses within the uterus. As described in this protocol, the pregnant female is anesthetized, the abdominal cavity is opened, and the uterus with the fetuses is exteriorized. A solution of plasmid DNA is injected through the uterine wall directly into the fetus, typically into a cavity like the brain ventricle, guided by fiber optic illumination. Electrodes are positioned on the uterus around the region of the fetus that was injected, and electrical pulses are delivered...
February 1, 2018: Cold Spring Harbor Protocols
https://www.readbyqxmd.com/read/29436143/infertility-treatment-strategy-involving-combined-freeze-all-embryos-and-single-vitrified-warmed-embryo-transfer-during-hormonal-replacement-cycle-for-in-vitro-fertilization-of-women-with-hypogonadotropic-hypogonadism
#18
Keiji Kuroda, Kenji Ezoe, Keiichi Kato, Akiko Yabuuchi, Tomoya Segawa, Tamotsu Kobayashi, Asako Ochiai, Noriko Katoh, Satoru Takeda
AIM: Hypogonadotropic hypogonadism (HH) is a condition caused by the deficient secretion of pituitary gonadotropins, leading to diminished ovarian function. Several studies of in vitro fertilization (IVF) in women with HH revealed acceptable clinical pregnancy outcomes but high multiple pregnancy rates after multiple fresh embryo transfer (ET). The purpose of this study was to analyze the outcomes of combined freeze-all embryos and single vitrified-warmed ET in women with HH. METHODS: Of 91 infertile women with HH (basal luteinizing hormone and follicle-stimulating hormone levels <2...
February 13, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29433970/an-evidence-based-scoring-system-for-prioritizing-mosaic-aneuploid-embryos-following-preimplantation-genetic-screening
#19
Francesca Romana Grati, Gloria Gallazzi, Lara Branca, Federico Maggi, Giuseppe Simoni, Yuval Yaron
The aim of this study was to devise an evidence-based scoring system for prioritizing mosaic aneuploid embryos for transfer. A retrospective analysis was performed of all sequential cytogenetic and molecular results on chorionic villi samples (n = 72,472) and products of conception (n = 3806) analysed at a single centre. The likelihood that a mosaic aneuploidy detected in chorionic villi samples will involve the fetus, the incidence of clinically significant fetal uniparental disomy in the presence of a mosaic in chorionic villi and the chance of the mosaicism culminating in miscarriage were used to generate a scoring system for prioritizing mosaic aneuploid embryos detected by preimplantation genetic screening...
February 9, 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29432583/the-clinical-utility-of-pgd-with-hla-matching-a-collaborative-multi-centre-eshre-study
#20
G Kakourou, S Kahraman, G C Ekmekci, H A Tac, G Kourlaba, E Kourkouni, A Cervero Sanz, J Martin, H Malmgren, C Giménez, V Gold, F Carvalho, C Billi, J F C Chow, X Vendrell, G Kokkali, J Liss, J Steffann, J Traeger-Synodinos
STUDY QUESTION: Has PGD-HLA been successful relative to diagnostic and clinical efficacy? SUMMARY ANSWER: The diagnostic efficacy of PGD-HLA protocols was found lower in this study in comparison to published PGD-HLA protocols and to that reported for general PGD by ESHRE (78.5 vs 94.1% and vs 92.6%, respectively), while the clinical efficacy has proven very difficult to assess due to inadequate follow-up of both the ART/PGD and HSCT procedure outcomes. WHAT IS KNOWN ALREADY: The first clinical cases for PGD-HLA were reported in 2001...
February 8, 2018: Human Reproduction
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