Results 41 to 50 of about 225,405 (254)

Effect of melatonin on maturation capacity and fertilization of Nili-Ravi buffalo (Bubalus bubalis) oocytes [PDF]

Open Veterinary Journal, 2016
This study evaluated the effect of melatonin supplementation of in vitro maturation media on in vitro maturation (IVM) and in vitro fertilization (IVF) rate of buffalo oocytes.
G. Nagina, A. Asima, U. Nemat, A. Shamim
doaj   +1 more source

Comparison of Pregnancy and Neonatal Outcomes in Frozen and Fresh Embryo Transfer in ART Cycles: A Retrospective Cohort Study [PDF]

Journal of Midwifery & Reproductive Health, 2020
Background & aim: In addition to the benefits of frozen embryo transfer (FET), the key question is whether freezing or melting embryos can cause fetal harm and prenatal complications.
Mahsomeh Hajishafiha, Tahere Behrouzi lak, Vahideh Nobakht, Nahid Sadegh Asadi, Sima Oshnouei, Fedyeh Haghollahi   +5 more
doaj   +1 more source

Pre-implantation mouse embryos cultured In vitro under different oxygen concentrations show altered ultrastructures [PDF]

, 2020
Assisted Reproductive Technologies routinely utilize different culture media and oxygen (O2) concentrations to culture human embryos. Overall, embryos cultured under physiological O2 tension (5%) have improved development compared to embryos cultured ...
Antonouli, S, Belli, M, Macchiarelli, G, Nottola, Sa, Palmerini, Mg, Rinaudo, P, Ruggeri, E   +6 more
core   +1 more source

Effect of morphokinetics and morphological dynamics of cleavage stage on embryo developmental potential: A time-lapse study

Taiwanese Journal of Obstetrics & Gynecology, 2018
Objective: Using a non-invasive method to select the most competent embryo is essential in in vitro fertilization (IVF). Since the beginning of clinical application of time-lapse technology, several studies have proposed models using the time-lapse ...
Shiao-Hsuan Yang, Cheng-Hsuan Wu, Yu-Ching Chen, Chueh-Ko Yang, Tsui-Huang Wu, Pei-Chi Chen, Horng-Der Tsai   +6 more
doaj   +1 more source

Embryo culture in presence of oviductal fluid induces DNA methylation changes in bovine blastocysts [PDF]

, 2017
During the transit through the oviduct, the early embryo initiates an extensive DNA methylation reprogramming of its genome. Given that these epigenetic modifications are susceptible to environmental factors, components present in the oviductal milieu ...
Barrera, Antonio Daniel, Fonseca Balvís, Noelia, Garcia, Elina Vanesa, Gutiérrez Adan, Alfonso, Hamdi, Meriem, López Cardona, Ángela Patricia, Rizos, Dimitrios, Sánchez Calabuig, María Jesús   +7 more
core   +1 more source

Step by step optimization of a sperm cryopreservation protocol for spotted wolffish (Anarhichas minor Olafsen, 1772) [PDF]

, 2020
Spotted wolffish Anarhichas minor reproduction in captivity is dependent on in vitro fertilization. However, low sperm volume with relatively low cell concentration and the lack of gametes synchronization (simultaneous availability of mature eggs and ...
Beirão, J., Cabrita, Elsa, Eggen, B., Santana, J.   +3 more
core   +2 more sources

Improved clinical pregnancy rates in natural frozen-thawed embryo transfer cycles with machine learning ovulation prediction: insights from a retrospective cohort study

Scientific Reports
This study aims to develop physician support software for determining ovulation time and assess its impact on pregnancy outcomes in natural cycle frozen embryo transfers (NC-FET).
Almog Luz, Ariel Hourvitz, Eden Moran, Nevo Itzhak, Shachar Reuvenny, Rohi Hourvitz, Michal Youngster, Micha Baum, Ettie Maman   +8 more
doaj   +1 more source

Endometrial transcriptome profiling of patients with recurrent implantation failure during hormone replacement therapy cycles

Frontiers in Endocrinology
BackgroundThe molecular mechanisms underlying window of implantation (WOI) displacement in patients with recurrent implantation failure (RIF) remain unclear.
Wen-bi Zhang, Jue Li, Qing Li, Xiang Lu, Jun-ling Chen, Lu Li, Hua Chen, Wei Fu, Jiu-cheng Chen, Bing-jie Lu, Han Wu, Xiao-xi Sun, Xiao-xi Sun   +12 more
doaj   +1 more source

Challenges and Considerations during In Vitro Production of Porcine Embryos

Cells, 2021
Genetically modified pigs have become valuable tools for generating advances in animal agriculture and human medicine. Importantly, in vitro production and manipulation of embryos is an essential step in the process of creating porcine models.
Paula R. Chen, Bethany K. Redel, Karl C. Kerns, Lee D. Spate, Randall S. Prather   +4 more
doaj   +1 more source

The Largest Paracentric Inversion, The Highest Rate Of Recombinant Spermatozoa. Case Report: 46,Xy, Inv(2)(Q21.2Q37.3) And Literature Review

Balkan Journal of Medical Genetics, 2014
Carriers of inversions involving euchromatic regions are at risk of having unbalanced offspring due to meiotic crossover. In carriers, recombination can occur during gametogenesis and cause genetically unbalanced sperm and subsequently unbalanced embryos.
C.C. Yapan, C. Beyazyurek, C.G. Ekmekci, S. Kahraman   +3 more
doaj   +1 more source