Results 11 to 20 of about 13,008 (277)

The time is ripe for oocyte in vitro maturation [PDF]

Journal of Assisted Reproduction and Genetics, 2021
When it comes to welcome transitions, 2021 seems to have started on a promising note. From the ushering in of COVID19 vaccination programs to a renewed appreciation of evidence-based policy in many countries, progress manifested itself in swift and ...
C. Plancha, P. Rodrigues, M. Marques, J. Almeida, Paulo Navarro-Costa   +4 more
semanticscholar   +2 more sources

Sequential analysis of global gene expression profiles in immature and in vitro matured bovine oocytes: potential molecular markers of oocyte maturation [PDF]

BMC Genomics, 2011
Background Without intensive selection, the majority of bovine oocytes submitted to in vitro embryo production (IVP) fail to develop to the blastocyst stage. This is attributed partly to their maturation status and competences.
Mehta Jai P, McGettigan Paul, Al Naib Abdullah, Leal Cláudia LV, Lonergan Patrick, Carter Fiona, Mamo Solomon, Evans Alexander CO, Fair Trudee   +8 more
doaj   +3 more sources

Effect of preantral follicle isolation technique on in-vitro follicular growth, oocyte maturation and embryo development in mice [PDF]

Human Reproduction, 2002
The use of mechanical and enzymatic techniques to isolate preantral follicles before in-vitro culture has been previously described. The aim of this study was to assess the effect of the isolation procedure of mouse preantral follicles on their subsequent development in vitro.Follicles were isolated either mechanically or enzymatically and cultured ...
Demeestere, Isabelle, Delbaere, Anne, Gervy Decoster, Christine, Van Den Bergh, Marc Jg, Devreker, Fabienne, Englert, Yvon   +5 more
openaire   +5 more sources

EFFECT OF CYSTEAMINE ON THE RATE OF IN VITRO MATURATION OF OOCYTES IN TWO MEDIA [PDF]

Acta Medica Iranica, 2006
Rate of in vitro maturation of oocytes is one of the challenges of assisted reproductive techniques. In this study we investigated the effects of supplementation of cysteamine on the rate of in vitro maturation of oocytes in two different media. Germinal
A. Mohammadi-Rousheh, M. H. Noori-Mooghahi, P. Pasbakhsh, A. Abddvahabi, M. Akbari, A. Shokrgozar A. Sobhani   +5 more
doaj   +4 more sources

Current approaches for assisted oocyte maturation in camels

Journal of Animal Reproduction and Biotechnology, 2021
Camel (camelus dromedarius) is a unique large mammalian species that can survive harsh environmental conditions and produce milk, meat, and wool. Camel reproduction is inferior when compared to other farm animal species such as cattle and sheep.
Islam M. Saadeldin, Jongki Cho
doaj   +2 more sources

Effect of collection techniques on cumulus oocyte complexes (COCs) recovery, in vitro maturation and fertilization of goat oocytes

African Journal of Biotechnology, 2011
تم إجراء التجربة لدراسة تأثير تقنيات الجمع على تعافي مجمعات البويضات الركامية (COCs)، والنضج في المختبر (IVM) والإخصاب في المختبر (IVF) لبويضات الماعز. تم جمع COCs من خلال ثلاث تقنيات هي الوخز، وتقطيع وشفط مبيضات الماعز التي تم الحصول عليها في المسلخ. لوحظ أن العدد الإجمالي لـ COCs/المبيض وكذلك عدد COCs/المبيض غير الطبيعي كان أعلى بكثير (p < 0.01) في ...
Abe S, Kumar Kabiraj Sanjoy, A M Yahia Kh M, oker, Mondal Anupom, M A Tareq K   +5 more
openaire   +4 more sources

Cytokine-Supplemented Maturation Medium Enhances Cytoplasmic and Nuclear Maturation in Bovine Oocytes [PDF]

Animals
Bovine in vitro oocyte maturation (IVM) is an easy way to obtain oocytes for subsequent assisted reproductive techniques but is inefficient compared to in vivo maturation.
Renata Blocher, Ying Liu, Tayler Patrick, Irina A. Polejaeva   +3 more
doaj   +3 more sources

Clinical outcomes over 12 years: a comparative analysis of oocyte cryopreservation from controlled ovarian stimulation and in vitro maturation retrieved from ovarian tissue [PDF]

Journal of Ovarian Research
Background Fertility preservation is crucial for females facing gonadotoxic treatments. Controlled ovarian stimulation (COS) followed by oocyte cryopreservation is a well-established method, while ovarian tissue-derived oocyte in vitro maturation (OTO ...
Xiaoping Liu, Weie Zhao, Peng Sun, Yujie Li, Yingchun Guo, Wenlong Su, Weiwei Zeng, Xiaoyan Liang, Jingjie Li   +8 more
doaj   +2 more sources

Impact of mineral oil overlay on immature oocyte maturation in an optimized in vitro culture system [PDF]

European Journal of Medical Research
Background To assess the impact of oil overlay during maturation of immature oocytes in vitro in our optimized liquid culture system. Methods We conducted comparative analyses of pH, osmolality, and the levels of melatonin, FSH, E2, and hCG in the ...
Jing Peng, Yan Hao, Zhaojuan Yu, Beili Chen, Zhiguo Zhang   +4 more
doaj   +2 more sources

In vitro maturation (IVM) of camel oocytes using different maturation media [PDF]

Benha Veterinary Medical Journal, 2023
The aim of the present study is to evaluate the in vitro maturation rate of camel oocytes using different maturation media. Ovaries of 25 she-camel were collected during the breeding season (from December to April). Ovaries were transferred to the lab in
Shimaa Gwaid, Ahmed Reda, Mohsen Aggag, Alaa Abdelghafar   +3 more
doaj   +1 more source