Results 11 to 20 of about 640,334 (311)

In Vitro maturation of oocytes [PDF]

British Medical Bulletin, 2000
Only about 400 of the one million oocytes present at birth will be ovulated, while the rest will die by atresia. The ability to rescue oocytes destined to die and mature them in vitro would provide invaluable information about folliculogenesis and oocyte maturation, and could provide oocytes for infertile women. In vitro maturation (IVM) is challenging
K, Hardy, C S, Wright, S, Franks, R M, Winston   +3 more
openaire   +2 more sources

Porcine oocyte maturation in vitro : role of cAMP and oocyte-secreted factors: a practical approach [PDF]

, 2016
Polyspermy or the penetration of more than one sperm cell remains a problem during porcine in vitro fertilization (IVF). After in vitro culture of porcine zygotes, only a low percentage of blastocysts develop and their quality is inferior to that of in ...
Appeltant, Ruth, Kikuchi, Kazuhiro, Maes, Dominiek, Somfai, Tamás, Van Soom, Ann   +4 more
core   +2 more sources

In vitromaturation: Clinical applications [PDF]

Clinical and Experimental Reproductive Medicine, 2013
Oocyte in vitro maturation (IVM) is an assisted reproductive technology in which oocytes are retrieved from the antral follicles of unstimulated or minimally stimulated ovaries. IVM of human oocytes has emerged as a promising procedure. This new technology has advantages over controlled ovarian stimulation such as reduction of costs, simplicity, and ...
Lim, Kyung Sil, Chae, Soo Jin, Choo, Chang Woo, Ku, Yeon Hee, Lee, Hye Jun, Hur, Chang Young, Lim, Jin Ho, Lee, Won Don   +7 more
openaire   +2 more sources

Detection of intermediates and kinetic control during assembly of bacteriophage P22 procapsid [PDF]

, 2008
Bacteriophage P22 serves as a model for the assembly and maturation of other icosahedral double-stranded DNA viruses. P22 coat and scaffolding proteins assemble in vitro into an icosahedral procapsid, which then expands during DNA packaging (maturation).
Abendon, Canady, Casjens, Ceres, Earnshaw, Endres, Falkner, Feigin, Fowler, Galisteo, Golub, Guinier, Hendrix, Hiro Tsuruta, Jiang, Kang, Kenneth H. French, Kihara, King, Lanman, Paatero, Paatero, Parent, Parent, Parent, Parker, Parker, Parker, Parker, Parker, Peter E. Prevelige, Prasad, Prevelige, Prevelige, Prevelige, Quinn, Reddy, Roman Tuma, Sakalian, Stockley, Stray, Sun, Svergun, Thuman-Commike, Thuman-Commike, Thuman-Commike, Tuma, Wang, Wang, Wyckoff, Zhang, Zlotnick, Zlotnick, Zlotnick   +53 more
core   +1 more source

Progesterone improves porcine in vitro fertilisation system [PDF]

, 2013
In an effort to improve the quality of in vitro produced porcine embryos, the effect of progestagens — progesterone analogues — on the in vitro developmental competence of porcine oocytes was studied.
Cano, Rafael, Gil, Lydia, Gonzalez, Noelia, Malo, Clara, Martinez, Felisa   +4 more
core   +1 more source

Early vessel destabilization mediated by Angiopoietin-2 and subsequent vessel maturation via Angiopoietin-1 induce functional neovasculature after ischemia. [PDF]

, 2013
We assessed whether Angiopoietin-2 (Ang2), a Tie2 ligand and partial antagonist of Angiopoietin-1 (Ang1), is required for early vessel destabilization during postischemic angiogenesis, when combined with vascular growth factors.
Chillo, Omary, Deindl, Elisabeth, Hinkel, Rabea, Kupatt, Christian, Lee, Seungmin, Qin, Di, Trenkwalder, Teresa   +6 more
core   +12 more sources

Comparison of Quinn's Advantage fertilization medium and tissue culture medium 199 for in vitro maturation of oocytes

Taiwanese Journal of Obstetrics & Gynecology, 2014
Objective: The purpose of the study was to compare the Quinn's Advantage fertilization medium (Q1) and the tissue culture medium 199 (TCM199) for in vitro maturation (IVM) of oocytes and ammonium production during IVM. Materials and methods: The immature
Yu-Hung Lin, Jiann-Loung Hwang, Lee-Wen Huang, Kok-Min Seow, Bih-Chwen Hsieh, Chii-Ruey Tzeng   +5 more
doaj   +1 more source

Human oocyte maturation in vitro

The International Journal of Developmental Biology, 2012
Oocytes from medium-sized antral follicles have already completed their growth phase and, if released from the follicular environment and cultured in vitro, are able to resume the meiotic process and mature. However, in vitro maturation (IVM) does not entirely support all the nuclear and cytoplasmic changes that occur physiologically as an effect of ...
Giovanni, Coticchio, Mariabeatrice, Dal-Canto, Maria-Cristina, Guglielmo, Mario, Mignini-Renzini, Rubens, Fadini   +4 more
openaire   +3 more sources

In vitro fertilisation in domestic mammals—a brief overview

Upsala Journal of Medical Sciences, 2020
Many factors influence the final oocyte maturation, fertilisation, and early embryo development, and there are both similarities and differences between species. When comparing the advancement of assisted reproductive technologies (ARTs), the development
Ylva Sjunnesson
doaj   +1 more source

The effect of cadmium on the bovine in vitro oocyte maturation and early embryo development [PDF]

, 2019
Common pollutants such as heavy metals and cadmium is among those with high environmental concerns. In vivo studies had shown that cadmium (Cd) causes oocyte degeneration and embryo mortality, and lowers pregnancy rates in mammals.
Angerer P., Bires J., Mlynarcikova A., Pisa J., Vrsanska S.   +4 more
core   +1 more source