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Embryo transfer

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https://www.readbyqxmd.com/read/29228019/loci-and-pathways-associated-with-uterine-capacity-for-pregnancy-and-fertility-in-beef-cattle
#1
Mahesh Neupane, Thomas W Geary, Jennifer N Kiser, Gregory W Burns, Peter J Hansen, Thomas E Spencer, Holly L Neibergs
Infertility and subfertility negatively impact the economics and reproductive performance of cattle. Of note, significant pregnancy loss occurs in cattle during the first month of pregnancy, yet little is known about the genetic loci influencing pregnancy success and loss in cattle. To identify quantitative trait loci (QTL) with large effects associated with early pregnancy loss, Angus crossbred heifers were classified based on day 28 pregnancy outcomes to serial embryo transfer. A genome wide association analysis (GWAA) was conducted comparing 30 high fertility heifers with 100% success in establishing pregnancy to 55 subfertile heifers with 25% or less success...
2017: PloS One
https://www.readbyqxmd.com/read/29227846/maternal-human-chorionic-gonadotrophin-concentrations-in-very-early-pregnancy-and-risk-of-hyperemesis-gravidarum-a-retrospective-cohort-study-of-4372-pregnancies-after-in-vitro-fertilization
#2
Johanne Dypvik, Andrea Lid Pereira, Tom Gunnar Tanbo, Anne Eskild
OBJECTIVE: We investigated the association of human chorionic gonadotrophin (hCG) concentrations on a fixed day in very early pregnancy with development of hyperemesis gravidarum. STUDY DESIGN: This retrospective cohort study included 3107 singleton and 1265 twin pregnancies after in vitro fertilization treated at Department of Reproductive Medicine, Rikshospitalet, Oslo University Hospital, Norway in the period 1996-2013. Maternal serum hCG concentrations was measured on day 12 after embryo transfer...
December 7, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29223656/endometrial-expression-of-estrogen-and-progesterone-receptors-in-non-cyclic-mares-treated-only-with-long-acting-progesterone
#3
L F S Maciel, E S M Silva, J P Oliveira-Filho, S C Fritsch, R S Rossi, J A C Lourenção, C Meira
Administration of progesterone (P4) after estradiol is usually performed to prepare non-cyclic mares as embryo recipients. However, there are successful pregnancy reports after embryo transfer in non-cyclic mares treated only with progestins. The objective of this study was to evaluate endometrial gene expression and immunostaining for estrogen receptor alpha (ERα), beta (ERβ) and progesterone receptor (PR) in seasonal anestrous mares treated with long acting P4 (LA P4). Endometrial tissue from eight seasonal anestrous mares was collected immediately before administration of 1...
December 2, 2017: Theriogenology
https://www.readbyqxmd.com/read/29214348/effect-of-laser-assisted-zona-thinning-during-assisted-reproduction-on-pregnancy-outcome-in-women-with-endometriosis-randomized-controlled-trial
#4
Adel Mohamed Nada, Amr El-Noury, Hesham Al-Inany, Mamdouh Bibars, Tamer Taha, Sameh Salama, Fatma Hassan, Eman Zein
OBJECTIVE: To compare the ICSI-ET outcomes in patients with endometriosis with or without laser-assisted zona pellucida thinning. DESIGN: Randomized controlled trial. SETTING: The study was conducted in the Obstetrics & Gynecology Department, Cairo University hospital, and two private IVF centers in Cairo & Beni-Suif from July 2015 to January 2017 upon infertile and known endometriosis patients who planned to do ICSI-ET. INTERVENTIONS: Before randomization, all patients received the same ovarian stimulation preparation, oocyte retrieval procedures, and the same intracytoplasmic sperm injection procedures...
December 6, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29212449/maternal-variant-in-the-upstream-of-foxp3-gene-on-the-x-chromosome-is-associated-with-recurrent-infertility-in-japanese-black-cattle
#5
Taichi Arishima, Shinji Sasaki, Tomohiro Isobe, Yoshihisa Ikebata, Shinichi Shimbara, Shogo Ikeda, Keisuke Kawashima, Yutaka Suzuki, Manabu Watanabe, Sumio Sugano, Kazunori Mizoshita, Yoshikazu Sugimoto
BACKGROUND: Repeat breeding, which is defined as cattle failure to conceive after three or more inseminations in the absence of clinical abnormalities, is a substantial problem in cattle breeding. To identify maternal genetic variants of repeat breeding in Japanese Black cattle, we selected 29 repeat-breeding heifers that failed to conceive following embryo transfer (ET) and conducted a genome-wide association study (GWAS) using the traits. RESULTS: We found that a single-nucleotide polymorphism (SNP; g...
December 6, 2017: BMC Genetics
https://www.readbyqxmd.com/read/29211889/reduced-live-birth-rates-after-ivf-icsi-in-women-with-previous-unilateral-oophorectomy-results-of-a-multicentre-cohort-study
#6
Tekla Lind, Jan Holte, Jan I Olofsson, Nermin Hadziosmanovic, Johannes Gudmundsson, Elizabeth Nedstrand, Mikael Lood, Lars Berglund, Kenny Rodriguez-Wallberg
STUDY QUESTION: Is there a reduced live-birth rate (LBR) after IVF/ICSI treatment in women with a previous unilateral oophorectomy (UO)? SUMMARY ANSWER: A significantly reduced LBR after IVF/ICSI was found in women with previous UO when compared with women with intact ovaries in this large multicentre cohort, both crudely and after adjustment for age, BMI, fertility centre and calendar period and regardless of whether the analysis was based on transfer of embryos in the fresh cycle only or on cumulative results including transfers using frozen-thawed embryos...
December 4, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29210255/the-legalisation-of-gamete-donation-in-italy
#7
Andrea Boggio
Since 2004, the regulation of assisted reproduction in Italy has undergone substantial reform as an effect of key judicial intervention. Limitations on embryo production, screening and transfer, the prohibition against engaging in preimplantation genetic diagnosis (PGD) and embryo selection, and the ban on gamete donation have all been removed by courts. In this article, I discuss how judicial intervention has improved the ability of Italian couples to access assisted reproduction technologies (ARTs), and how the expansion of reproductive rights is, however, still incomplete...
March 2017: European Journal of Health Law
https://www.readbyqxmd.com/read/29209482/the-place-for-prophylactic-cerclage-in-the-infertile-patient-with-established-cervical-incompetence-who-conceived-twins-after-septum-reduction
#8
Jennifer Deanna, Omar Abuzied, Fahmi Islam, Ivana Vettriano, Frederico Rocha, Mostafa Abuzeid
Introduction: It is well known that cervical incompetence and associated preterm birth confers greater morbidity and mortality on birth outcomes, with an additional increased risk of cervical incompetence in higher order gestations. While the pathophysiology of cervical incompetence has yet to be elucidated, research has identified risk factors and assessed outcomes of numerous interventions. Cervical cerclage has been shown, in certain situations involving singleton pregnancies, to improve outcomes...
June 2017: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/29207293/inhibition-of-apoptosis-by-caspase-inhibitor-z-vad-fmk-improves-cryotolerance-of-in%C3%A2-vitro-derived-bovine-embryos
#9
Maria Elena Pero, Gianluigi Zullo, Luigi Esposito, Alessandra Iannuzzi, Pietro Lombardi, Carolina De Canditiis, Gianluca Neglia, Bianca Gasparrini
The aim of this work was to evaluate whether the treatment with the pan-caspase inhibitor benzyloxycarbonyl-Val-Ala-Asp-fluoromethyl ketone (Z-VAD-FMK) during cryopreservation and post-warming in vitro culture improves cryotolerance of bovine in vitro produced (IVP) embryos. Abattoir derived bovine oocytes were in vitro matured, fertilized and cultured according to standard procedure. On Day 7, embryo yields were assessed and blastocysts randomly divided in 2 groups: vitrification and post-warming culture in the absence (n = 184) or presence (n = 156) of 20 μM Z-VAD-FMK...
December 2, 2017: Theriogenology
https://www.readbyqxmd.com/read/29206936/birthweight-of-singletons-born-after-cleavage-stage-or-blastocyst-transfer-in-fresh-and-warming-cycles
#10
Anick De Vos, Samuel Santos-Ribeiro, Lisbet Van Landuyt, Hilde Van de Velde, Herman Tournaye, Greta Verheyen
STUDY QUESTION: Does extended culture to the blastocyst stage affect singleton birthweight after either fresh or vitrified-warmed embryo transfer? SUMMARY ANSWER: Singleton birthweight z-scores did not vary significantly after a fresh blastocyst transfer, whereas the additional effect of vitrification remains inconclusive. WHAT IS KNOWN ALREADY: Observational studies have associated extended culture with an increased risk of preterm birth and low birthweight...
December 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29205617/epigenetic-states-of-donor-cells-significantly-affect-the-development-of-somatic-cell-nuclear-transfer-scnt-embryos-in-pigs
#11
Yanhui Zhai, Wei Li, Zhiren Zhang, Yunqing Cao, Zhengzhu Wang, Sheng Zhang, Ziyi Li
The type and pattern of epigenetic modification in donor cells can significantly affect the developmental competency of somatic cell nuclear transfer (SCNT) embryos. Here, we investigated the developmental capacity, gene expression, and epigenetic modifications of SCNT embryos derived from porcine bone marrow-derived mesenchymal stem cells (BMSCs) and fetal fibroblasts (FFs) donor cells compared to embryos obtained from in vitro fertilization (IVF). Compared to FFs, the donor BMSCs had more active epigenetic markers (Histone H3 modifications: H3K9Ac, H3K4me3, and H3K4me2) and fewer repressive epigenetic markers (H3K9me3, H3K9me2, and DNA methyltransferase 1)...
December 4, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29204869/estrogen-treatment-in-infertile-women-with-premature-ovarian-insufficiency-in-transitional-phase-a-retrospective-analysis
#12
Sara Pinelli, Paolo Giovanni Artini, Stefano Basile, Maria Elena Rosa Obino, Claudia Sergiampietri, Diana Giannarelli, Giovanna Simi, Vito Cela
PURPOSE: During the transitional phase of premature ovarian insufficiency (POI), sporadic resumption of ovulation is possible because of fluctuation of hormonal levels but the chance of spontaneous pregnancy is low, and the main perspective of childbearing in these women is egg donation or adoption. The purpose of the study was to verify whether treatment with estrogens in POI patients in transitional phase could reduce FSH levels and to evaluate if this pre-treatment could improve reproductive outcomes of in vitro fertilization (IVF)...
December 5, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29204868/increased-live-births-after-day-5-versus-day-6-transfers-of-vitrified-warmed-blastocysts
#13
Alice Tubbing, Chloë Shaw-Jackson, Lieveke Ameye, Jérôme Colin, Serge Rozenberg, Candice Autin
PURPOSE: An investigation into the clinical implications of delayed blastulation (day 5 versus day 6) was carried out for cryo cycles, as heterogeneous results persist in the current literature. METHODS: We performed a retrospective study comparing clinical pregnancies and live births between 178 blastocysts vitrified and warmed on day 5 versus 149 on day 6. The stage of blastocyst development was taken into account and adjustment for confounding factors was performed...
December 4, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29203658/molecular-and-functional-resemblance-of-differentiated-cells-derived-from-isogenic-human-ipscs-and-scnt-derived-escs
#14
Ming-Tao Zhao, Haodong Chen, Qing Liu, Ning-Yi Shao, Nazish Sayed, Hung-Ta Wo, Joe Z Zhang, Sang-Ging Ong, Chun Liu, Youngkyun Kim, Huaxiao Yang, Tony Chour, Hong Ma, Nuria Marti Gutierrez, Ioannis Karakikes, Shoukhrat Mitalipov, Michael P Snyder, Joseph C Wu
Patient-specific pluripotent stem cells (PSCs) can be generated via nuclear reprogramming by transcription factors (i.e., induced pluripotent stem cells, iPSCs) or by somatic cell nuclear transfer (SCNT). However, abnormalities and preclinical application of differentiated cells generated by different reprogramming mechanisms have yet to be evaluated. Here we investigated the molecular and functional features, and drug response of cardiomyocytes (PSC-CMs) and endothelial cells (PSC-ECs) derived from genetically relevant sets of human iPSCs, SCNT-derived embryonic stem cells (nt-ESCs), as well as in vitro fertilization embryo-derived ESCs (IVF-ESCs)...
December 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29203382/thirteen-years-experience-of-893-pgd-cycles-for-monogenic-disorders-in-a-publicly-funded-nationally-regulated-regional-hospital-service
#15
Anne Girardet, Aliya Ishmukhametova, Victoria Viart, Stéphanie Plaza, Florielle Saguet, Garance Verriere, Samir Hamamah, Isabelle Coupier, Emmanuelle Haquet, Tal Anahory, Marjolaine Willems, Mireille Claustres
This study provides an overview of preimplantation genetic diagnosis (PGD) for single gene diseases and the management of expanding indications in the context of a fully financially covered service at Montpellier's regional hospital centre. Within the framework of a restrictive law ruling PGD in France, only the parental genetic risk can be studied in embryos (concurrent aneuploidy screening is not allowed). PCR-based techniques were developed combining mutation detection and closely linked short tandem repeat markers within or flanking the affected genes, and set up more than 100 different robust fluorescent multiplex assays for 61 monogenic disorders...
November 22, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29202974/embryo-aneuploidy-is-not-impacted-by-selective-serotonin-reuptake-inhibitor-exposure
#16
Carlos Hernandez-Nieto, Joseph Lee, Taraneh Nazem, Dmitry Gounko, Alan Copperman, Benjamin Sandler
OBJECTIVE: To study whether maternal exposure to selective serotonin reuptake inhibitors (SSRIs) has any influence on rates of blastocyst aneuploidy and/or in vitro fertilization (IVF) cycle outcomes. DESIGN: Retrospective cohort analysis. SETTING: Private and academic IVF center. PATIENT(S): Patients who underwent IVF with preimplantation genetic treatment with trophectoderm biopsy (n = 4,355 cycles) and patients who underwent a single-embryo transfer (SET) between January-2012 and June-2017 (n = 2,132 cycles)...
December 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/29201669/comparison-of-outcomes-of-ivf-cycles-between-transferred-frozen-thawed-embryos-and-fresh-embryos-by-a-2-year-survey
#17
Ensieh Shahrokh-Tehraninejad, Zeynab Vosoog, Fatemeh Farajzadeh-Vajari
Background: Infertility as one of most concerning topics in childbearing age mothers needs better managements with less complications and IVF can be assumed as an efficient method. This study aimed to compare pregnancy outcomes in fresh and frozen embryos transferred in IVF cycles. Methods: In a retrospective study, 11201 patients underwent IVF cycles from 21st March 2013 to 20th March 2014 and they were categorized into two groups according to age, previous tubal disease and surgery, tubal ligation, and previous ectopic pregnancy variables...
October 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/29201667/the-effects-of-adjuvant-therapies-on-embryo-transfer-success
#18
Rachael Shirlow, Martin Healey, Michelle Volovsky, Vivien MacLachlan, Beverley Vollenhoven
Background: Many adjuvant therapies are employed during IVF treatment in an attempt to improve outcomes. The objective of our study was to evaluate the impact of thirteen adjuvants (Intralipid, steroids, melatonin, coenzyme Q10, Filgrastim, testosterone, DHEA, growth hormone, antibiotics, hCG infusion, aspirin, enoxaparin/heparin and dopamine agonists) on the success of embryo transfers. Methods: This is a retrospective cohort study of all embryo transfers between January 2010 and April 2015 from a multi-site IVF clinic...
October 2017: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/29198975/improvement-of-bovine-in%C3%A2-vitro-embryo-production-by-ovarian-follicular-wave-synchronization-prior-to-ovum-pick-up
#19
F L B Cavalieri, F Morotti, M M Seneda, A H B Colombo, M A Andreazzi, I P Emanuelli, L P Rigolon
This study evaluated the effects of the synchronization of ovarian follicular wave emergence on the efficiency of in vitro embryo production. Bos indicus cows (n = 20) were divided into two groups (control vs. synchronization) and subjected to repeated ovum pick-up (OPU) sessions (8 replicates each, with an interval of 21 days in a 2 × 2 crossover design) and subsequent in vitro embryo production. Cows in the control group (n = 10) were submitted to OPU procedures without any stimulation every 21 days...
November 26, 2017: Theriogenology
https://www.readbyqxmd.com/read/29197506/cadmium-exposure-exacerbates-severe-hyperlipidemia-and-fatty-liver-changes-in-zebrafish-via-impairment-of-high-density-lipoproteins-functionality
#20
Jae-Yong Kim, Suk-Jeong Kim, Myung Ae Bae, Jae-Ryong Kim, Kyung-Hyun Cho
Cadmium (Cd) is a heavy metal with several toxicities that have destructive effect on most organ systems. However, its toxic effects on human lipoproteins are largely remained unknown especially in hyperlipidemic zebrafish model. Treatment of human high-density lipoprotein (HDL) with cadmium chloride (CdCl2, final 12 and 24μM) caused spontaneous formation of multimeric apoA-I as well as increased production of glycated extent products. Cd-HDL3 accelerated uptake of oxidized LDL (oxLDL) into macrophages and induced severe senescence in human dermal fibroblast (HDF) cells...
November 29, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
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