Results 11 to 20 of about 25,545 (268)

Cryopreservation of equine oocytes: looking into the crystal ball [PDF]

, 2020
In vitro embryo production has evolved rapidly in the horse over the past decade, but blastocyst rates from vitrified equine oocytes remain quite poor and further research is needed to warrant application.
Angel Velez, Daniel, De Coster, Tine, Smits, Katrien, Van Soom, Ann, Woelders, Henri   +4 more
core   +2 more sources

In Vitro Maturation and Fertilization of Immature Oocytes: A Comparative Study of Fertilization Techniques [PDF]

Journal of Assisted Reproduction and Genetics, 2000
Our purpose was to investigate the factors influencing maturation and fertilization of immature oocytes.Immature oocytes were obtained from women undergoing cesarean section. They were cultured in the maturation medium either with or without cumulus cells.
J L, Hwang, Y H, Lin, Y L, Tsai
openaire   +2 more sources

Comparing four laboratory three-parent techniques to construct human aged non-surrounded nucleolus germinal vesicle oocytes: A case-control study

International Journal of Reproductive BioMedicine, 2020
Background: The three-parent assisted reproductive technique may increase oocyte competence.Objective: In this case-control study, the suitability of germinal vesicle transfer (GVT), synchronous ooplasmic transfer (sOT), asynchronous ooplasmic transfer ...
Sara Darbandi, Mahsa Darbandi, Ashok Agarwal, Hamid Reza Khorram khorshid, Mohammad Reza Sadeghi, Sandro C. Esteves, Pallav Sengupta, Sulagna Dutta, Zohreh Fathi, Hojjat Zeraati, Mohammad Mehdi Akhondi   +10 more
doaj   +1 more source

A novel technique for in vitro maturation of sheep oocytes in a liquid marble microbioreactor [PDF]

Journal of Assisted Reproduction and Genetics, 2016
The aim of this work was to develop a microbioreactor using liquid marble (LM) as a novel system for oocyte in vitro maturation (IVM) in small volumes.Cumulus-oocyte complexes (COCs) obtained from slaughterhouse sheep ovaries were in vitro matured in a LM system prepared by placing a drop (30 μl containing 10 COCs) suspended in TCM 199 supplemented ...
Ledda S, Idda A, KELLY, JENNIFER MARGARET, Ariu F, Bogliolo L, Bebbere D   +5 more
openaire   +3 more sources

Collection of 125 Oocytes in an In Vitro Maturation Cycle Using a New Oocyte Collection Technique: A Case Report [PDF]

Journal of Obstetrics and Gynaecology Canada, 2014
We have developed a new oocyte collection technique applicable to use in women with "string-of-pearls" polycystic ovaries undergoing in vitro maturation (IVM) of oocytes for in vitro fertilization.A 34-year-old woman with polycystic ovary syndrome and infertility underwent IVM.
Michael H, Dahan, Baris, Ata, Resa, Rosenberg, Jin Tae, Chung, Weon Young, Son, Seang Lin, Tan   +5 more
openaire   +2 more sources

Localisation of RNAs into the germ plasm of vitellogenic xenopus oocytes [PDF]

, 2013
We have studied the localisation of mRNAs in full-grown Xenopus laevis oocytes by injecting fluorescent RNAs, followed by confocal microscopy of the oocyte cortex.
B Heinrich, C Hudson, C Wang, CM Gallo, CP Brangwynne, DR Drummond, F Bontems, F Lai, FF Lai, FL Marlow, Gert Jan C. Veenstra, H MacArthur, H MacArthur, Hugh R. Woodland, HW Song, IM Palacios, J Heasman, J Heasman, JA Gagnon, JB Glotzer, JK Yisraeli, JK Yisraeli, JN Betley, JO Deshler, K Kosaka, K Yaniv, KE Schroeder, KM Forrest, L Allen, L Dale, L Mosquera, M Claussen, M Claussen, M Kloc, M Kloc, M Kloc, M Kloc, M Kloc, M Kloc, M Ku, ME Kloc, ME Pepling, ML King, NR Zearfoss, O Hachet, P Chang, PM Macdonald, PT Richardson, QH Tao, RA Lewis, RJ Machado, RS Hames, RT Cox, S Choo, S Guedes, S Kwon, Sarbjit Nijjar, SN Hird, TJ Messitt, U Wolke, VB Alarcon, VL Zimyanin, WV Gerber, Y Zhang, Y Zhou, Y Zhou, Y Zhou   +66 more
core   +6 more sources

The Role of Cumulus Cells for The Immature Oocyte Undergoing In Vitro Maturation Rescue: A Retrospective Analysis [PDF]

International Journal of Fertility and Sterility
Background: Lack of matured oocytes after ovarian stimulation for in vitro fertilization (IVF) is one problem affect­ing the number of good-quality embryos.
Yudha Sudewo, Binarwan Halim, Diana Novi, Ichwaniul Adenin, Henry Salim Siregar, Muhammad Fidel Ganis Siregar, Muharam Natadisastra, Muhammad Rizki Yaznil, Irwin Lamtota Lumbanraja   +8 more
doaj   +1 more source

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

Role of Mitochondria Transfer in Infertility: A Commentary

Cells, 2022
Mitochondria transfer techniques were first designed to prevent the transmission of diseases due to mutations in mtDNA, as these organelles are exclusively transmitted to the offspring by the oocyte.
Cristina Rodríguez-Varela, Elena Labarta   +1 more
doaj   +1 more source

Mitochondria directly influence fertilisation outcome in the pig [PDF]

, 2006
The mitochondrion is explicitly involved in cytoplasmic regulation and is the cell's major generator of ATP. Our aim was to determine whether mitochondria alone could influence fertilisation outcome.
Abeydeera, Alves, Anderson, Barritt, Barritt, Barritt, Blok, Brenner, Cetica, Clayton, Cohen, Cohen, Cran, de Loos, Downs, Dumollard, Eisen, Emma C Spikings, Findlay, Fong, Hue, Jansen, Justin C St John, King, Koo, Krakauer, Larsson, Larsson, Li, Lin, Liu, Mach  ty, Marchington, Mariana Freitas, Marinos, McConnell, Michaels, Moyes, Park, Pik  , Poulton, Raghu, Reynier, Roca, Sathananthan, Shahinaz H El Shourbagy, Shea, Spelbrink, St John, St John, St John, St John, St. John, Stojkovic, Sun, Tessa, Tian, Trimarchi, Ursing, Van Blerkom, Van Blerkom, Van Blerkom, Wakayama, Wallace, Wilmut, Zamzami, Zernicka-Goetz   +66 more
core   +3 more sources