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Embryo Culture Media

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https://www.readbyqxmd.com/read/28330141/evaluation-of-biochemical-markers-during-somatic-embryogenesis-in-silybum-marianum-l
#1
Bilal Haider Abbasi, Huma Ali, Buhara Yücesan, Sabahat Saeed, Khalid Rehman, Mubarak Ali Khan
In present report effects of explants type, basal media and plant growth regulators (PGRs) were tested for induction of indirect somatic embryogenesis in medicinally important plant Silybum marianum L. Leaf, petiole and root explants were exploited in vitro on B5 (Gamborg), SH (Schenk and Hildebrandt) and MS (Murashige and Skoog) media for induction of embryogenic callus followed by somatic embryogenesis. Highest callus induction frequency (76 ± 4.8 %) was recorded when petiole explants of in vitro derived plantlets were cultured on B5 medium supplemented with 1...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28318541/the-most-well-kept-secret-embryo-culture-media-a-smart-reveal-from-an-expert
#2
EDITORIAL
Marcos Meseguer, Antonio Pellicer
No abstract text is available yet for this article.
March 16, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28281144/predictive-value-of-spindle-retardance-in-embryo-implantation-rate
#3
Sabela García-Oro, María Isabel Rey, Marta Rodríguez, Ángel Durán, Roque Devesa, Diana Valverde
PURPOSE: We evaluated the relationship between meiotic spindle characteristics and in vitro fertilization cycle outcome. METHODS: Five hundred sixty-nine oocytes from 86 in vitro fertilization cycles were analyzed for fertilization and subsequent implantation rates. Oocytes were assessed for maturation status. The oocytes and embryos were cultured in sequential and nonsequential media (G Series, Vitrolife, Sweden) and incubated in 6% CO2, 5% O2 at 37 °C. Two hours following oocyte decumulation (38-39 h post-hCG/GnRH administration) and prior to microinjection, the structure of the meiotic spindle was assessed using the Oosight Imaging System (CRI, UK)...
March 9, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28268069/in-vitro-culture-of-individual-mouse-preimplantation-embryos-the-role-of-embryo-density-microwells-oxygen-timing-and-conditioned-media
#4
Rebecca L Kelley, David K Gardner
Single embryo culture is suboptimal compared with group culture, but necessary for embryo monitoring, and culture systems should be improved for single embryos. Pronucleate mouse embryos were used to assess the effect of culture conditions on single embryo development. Single culture either before or after compaction reduced cell numbers (112.2 ± 3.1; 110.2 ± 3.5) compared with group culture throughout (127.0 ± 3.4; P < 0.05). Reduction of media volume from 20 µl to 2 µl increased blastocyst cell numbers in single embryos cultured in 5% oxygen (84...
February 15, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28264757/supplementation-of-sperm-media-with-zinc-d-aspartate-and-co-enzyme-q10-protects-bull-sperm-against-exogenous-oxidative-stress-and-improves-their-ability-to-support-embryo-development
#5
Vincenza Barbato, Riccardo Talevi, Sabrina Braun, Anna Merolla, Sam Sudhakaran, S Longobardi, Roberto Gualtieri
High levels of reactive oxygen species in the semen of infertile patients or spontaneously generated during in vitro sperm handling may impair sperm quality, fertilization and embryo developmental competence. We recently reported that zinc, d-aspartate and co-enzyme Q10, contained in the dietary supplement Genadis® (Merck Serono), have protective effects on human and bull sperm motility, lipid peroxidation and DNA fragmentation in vitro; furthermore, in bovine, treated spermatozoa had an improved ability to support embryo development...
March 7, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28260557/the-influence-of-in-vitro-fertilization-and-embryo-culture-on-the-embryo-epigenetic-constituents-and-the-possible-consequences-in-the-bovine-model
#6
M-A Sirard
Medically assisted reproductive technologies, such as in vitro embryo production, are increasingly being used to palliate infertility. Eggs are produced following a hormonal regimen that stimulates the ovaries to produce a large number of oocytes. Collected oocytes are then fertilized in vitro and allowed to develop in vitro until they are either frozen or transferred to mothers. There are controversial reports on the adverse impacts of these technologies on early embryos and their potential long-term effects...
March 6, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28259137/chronic-endometritis-modifies-decidualization-in-human-endometrial-stromal-cells
#7
Di Wu, Fuminori Kimura, Luyi Zheng, Mitsuaki Ishida, Yoko Niwa, Kimiko Hirata, Akie Takebayashi, Akiko Takashima, Kentaro Takahashi, Ryoji Kushima, Guangmei Zhang, Takashi Murakami
BACKGROUND: Chronic endometritis (CE) is a continuous inflammation of uterine endometrium, and it is usually symptomless. As CE has been thought not to affect the reproductive status and general health of affected women, its significance has not been explored. However, recent studies have shown that CE is related with repeated implantation failures after in vitro fertilization-embryo transfer, unexplained infertility, and recurrent miscarriages. As decidua differentiates to support the implantation process and maintains the pregnancy, we hypothesized that CE may influence the process of decidualization...
March 4, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28241084/characterization-of-bovine-embryos-cultured-under-conditions-appropriate-for-sustaining-human-na%C3%A3-ve-pluripotency
#8
Bas Brinkhof, Helena T A van Tol, Marian J A Groot Koerkamp, Richard W Wubbolts, Henk P Haagsman, Bernard A J Roelen
In mammalian preimplantation development, pluripotent cells are set aside from cells that contribute to extra-embryonic tissues. Although the pluripotent cell population of mouse and human embryos can be cultured as embryonic stem cells, little is known about the pathways involved in formation of a bovine pluripotent cell population, nor how to maintain these cells in vitro. The objective of this study was to determine the transcriptomic profile related to bovine pluripotency. Therefore, in vitro derived embryos were cultured in various culture media that recently have been reported capable of maintaining the naïve pluripotent state of human embryonic cells...
2017: PloS One
https://www.readbyqxmd.com/read/28238490/composition-of-single-step-media-used-for-human-embryo-culture
#9
Dean E Morbeck, Nikola A Baumann, Devin Oglesbee
OBJECTIVE: To determine compositions of commercial single-step culture media and test with a murine model whether differences in composition are biologically relevant. DESIGN: Experimental laboratory study. SETTING: University-based laboratory. ANIMAL(S): Inbred female mice were superovulated and mated with outbred male mice. INTERVENTION(S): Amino acid, organic acid, and ions content were determined for single-step culture media: CSC, Global, G-TL, and 1-Step...
February 23, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28237330/replacement-of-serum-with-sericin-in-in%C3%A2-vitro-maturation-and-culture-media-effects-on-embryonic-developmental-competence-of-sanjabi-sheep-embryo-during-breeding-season
#10
H Hajarian, F Aghaz, H Karami Shabankareh
Sericin is a water-soluble component of silk and has been used as a biomaterial due to its antibacterial and ultraviolet radiation-resistant properties. This study was designed to evaluate the effect of sericin supplementation, as a serum replacement, in maturation and culture media on the meiotic competence of oocytes or in vitro culture of ovine embryos. In experiment 1, oocytes were matured in the presence of 10% fetal ovine serum (FOS), 0.1% polyvinyl alcohol (PVA) and different concentrations of sericin (0...
April 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28185855/biphasic-effect-of-alpha-linolenic-acid-on-glucose-induced-dysmorphogenesis-and-lipoperoxidation-in-whole-rat-embryo-in-culture
#11
Gladys Chirino-Galindo, Jorge-Israel Barrera-Argüelles, Ninna-Leslie Trejo-González, Ricardo Mejía-Zepeda, Martín Palomar-Morales
Type 1 diabetes mellitus complicated with pregnancy, know as diabetic embryopathy, is the cause of neonatal malformations and low for gestational age neonates. With the use of the whole-embryo culture system, it has been demonstrated that high glucose causes embryo dysmorphogenesis, and that oxidative stress appears to be the main mechanism. In recent years, beneficial effect of omega-3 fatty acids has been demonstrated in various diabetic models, and in diabetic complications. Since diabetic embryopathy is mediated probably through membrane lipoperoxidation, This study was designed to find if omega-3 fatty acids could ameliorate the effect of high glucose over the dysmorphogenesis of whole rat embryo in culture...
February 6, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28177135/unveiling-and-initial-characterization-of-neural-crest-like-cells-in-mesenchymal-populations-from-the-human-periodontal-ligament
#12
L Ramírez-García, R Cevallos, K Gazarian
OBJECTIVE: To identify cells with neural crest properties in mesenchymal populations isolated from human periodontal ligament. BACKGROUND: Evidence from tracing experiments on animal embryos revealed proof that dental tissues are among the homing sites of craniofacial neural crest migratory cells. In humans, similar migratory cells were found in early embryos, but whether these cells are progeny of oral multipotent stem cells needs to be confirmed. Searching for the cells with neural crest characteristics in periodontal ligament mesenchymal populations can lead to a solution to the problem...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28129426/glucocorticoid-induced-leucine-zipper-suppresses-icam-1-and-mcp-1-expression-by-dephosphorylation-of-nf-%C3%AE%C2%BAb-p65-in-retinal-endothelial-cells
#13
Ruiping Gu, Boya Lei, Chen Jiang, Gezhi Xu
Purpose: Glucocorticoid-induced leucine zipper (GILZ) is involved in anti-inflammatory activities in several animal models and in various cell types. In this study, we explored the role of GILZ in rat retinal vascular endothelial cells. Methods: Glucocorticoid-induced leucine zipper overexpression or silencing was established using GILZ overexpressing recombinant lentivirus (OE-GILZ-rLV) or short-hairpin RNA targeting GILZ recombinant lentivirus (shRNA-GILZ-rLV), respectively, in rat primary retinal microvascular endothelial cells (RMECs) and intact retina...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28109839/ex-utero-culture-of-viviparous-embryos-of-the-lizard-zootoca-vivipara-provides-insights-into-calcium-homeostasis-during-development
#14
Tom W Ecay, James R Stewart, Greg Wiessner, Benoit Heulin
The chorioallantoic membrane resides adjacent to either the inner surface of the egg shell or uterine epithelium in oviparous and viviparous reptiles, respectively. Chorionic cells face the shell or uterine epithelium and transport calcium to underlying embryonic capillaries. Calcium transport activity of the chorioallantois increases in the final stages of development coincident with rapid embryonic growth and skeletal ossification. We excised embryos from viviparous Zootoca vivipara females at a stage prior to significant calcium accumulation and incubated them ex utero with and without calcium to test the hypothesis that chorioallantois calcium transport activity depends on developmental stage and not calcium availability...
January 18, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28101448/acetylsalicylic-acid-interferes-with-embryonic-kidney-growth-and-development-by-a-prostaglandin-independent-mechanism
#15
Simon J M Welham, Alexander J Sparrow, David S Gardner, Matthew J Elmes
AIM: To evaluate the effects of the non-selective, non-steroidal anti-inflammatory drug (NSAID) acetylsalicylic acid (ASA), on ex vivo embryonic kidney growth and development. METHODS: Pairs of fetal mouse kidneys at embryonic day 12.5 were cultured ex vivo in increasing concentrations of ASA (0.04-0.4 mg/mL) for up to 7 d. One organ from each pair was grown in control media and was used as the internal control for the experimental contralateral organ. In some experiments, organs were treated with ASA for 48 h and then transferred either to control media alone or control media containing 10 μmol/L prostaglandin E2 (PGE2) for a further 5 d...
January 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28093041/blastocyst-development-in-a-single-medium-compared-to-sequential-media
#16
Ioannis A Sfontouris, Efstratios M Kolibianakis, George T Lainas, George K Petsas, Basil C Tarlatzis, Trifon G Lainas
The aim of the present study was to compare blastocyst formation rates after embryo culture in a single medium (Global) as compared to sequential media (ISM1/BlastAssist). In this prospective trial with sibling oocytes, 542 metaphase II (MII) oocytes from 31 women were randomly and equally divided to be fertilized and cultured to the blastocyst stage in either sequential media (ISM1/BlastAssist; n = 271 MII oocytes) or a single medium (Global; n = 271 MII oocytes). In both groups, embryos were cultured in an interrupted fashion with media changes on day 3...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28090465/does-intrauterine-injection-of-low-molecular-weight-heparin-improve-the-clinical-pregnancy-rate-in-intracytoplasmic-sperm-injection
#17
Ahmed Mohamed Kamel, Yahia El-Faissal, Mona Aboulghar, Ragaa Mansour, Gamal I Serour, Mohamed Aboulghar
OBJECTIVE: Heparin can modulate proteins, and influence processes involved in implantation and trophoblastic development. This study aimed to assess the improvement of clinical pregnancy and implantation rates after local intrauterine injection of low-molecular-weight heparin (LMWH) in patients undergoing intracytoplasmic sperm injection (ICSI). METHODS: A randomised case/control design was followed in women scheduled for ICSI. The study arm was injected with intrauterine LMWH during mock embryo transfer immediately following the ovum pickup procedure, while the control arm was given an intrauterine injection with a similar volume of tissue culture media...
December 2016: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28073983/a-novel-embryo-culture-media-supplement-that-improves-pregnancy-rates-in-mice
#18
A R Highet, T Bianco-Miotto, K G Pringle, A Peura, S Bent, J Zhang, M B Nottle, J G Thompson, C T Roberts
The preimplantation embryo in vivo is exposed to numerous growth factors in the female reproductive tract, which are not recapitulated in embryo culture media in vitro The IGF2 and plasminogen activator systems facilitate blastocyst development. We hypothesized that the addition of IGF2 in combination with urokinase plasminogen activator (uPA) and plasminogen could improve rates of blastocyst hatching and implantation in mice. B6BcF1 and CBAB6F2 mouse embryos were divided into one of four supplemented culture media treatment groups: (1) control (media only); (2) 12...
March 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28057937/a-simple-and-rapid-flow-cytometry-based-assay-to-identify-a-competent-embryo-prior-to-embryo-transfer
#19
Eva Pallinger, Zoltan Bognar, Jozsef Bodis, Timea Csabai, Nelli Farkas, Krisztina Godony, Akos Varnagy, Edit Buzas, Julia Szekeres-Bartho
Multiple pregnancy is a risk for prematurity and preterm birth. The goal of assisted reproduction is to achieve a single pregnancy, by transferring a single embryo. This requires improved methods to identify the competent embryo. Here, we describe such a test, based on flow cytometric determination of the nucleic acid (PI+) containing extracellular vesicle (EV) count in day 5 embryo culture media. 88 women undergoing IVF were included in the study. More than 1 embryos were transferred to most patients. In 58 women, the transfer resulted in clinical pregnancy, whereas in 30 women in implantation failure...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28050958/non-invasive-prediction-of-blastocyst-implantation-ongoing-pregnancy-and-live-birth-by-mass-spectrometry-lipid-fingerprinting
#20
Edson Borges, Daniela P A F Braga, Amanda Souza Setti, Daniela A Montanni, Elaine Cristina Cabral, Marcos N Eberlin, Edson G Lo Turco, Assumpto Iaconelli
OBJECTIVE: To identify lipid markers of blastocyst implantation and ongoing pregnancy by day three culture medium mass spectrometry (MS) fingerprinting. METHODS: For this study, 33 culture media samples were harvested on day three, from 22 patients undergoing day five embryo transfers. All embryos achieved the blastocyst stage and were split into groups based on their implantation (Negative Implantation, n= 14 and Positive Implantation, n= 19). The positive implantation cycles resulted in successful ongoing pregnancies...
December 1, 2016: JBRA Assisted Reproduction
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