Resumption of meiosis: mechanism involved in meiotic progression and its relation with developmental competence

Theriogenology
M A Sirard

Abstract

It has been more than 10 years since the first calf was born following in vitro maturation of a bovine oocyte. During that period, a number of modifications have been made to the culture conditions during the maturation period but still most oocytes failed to produce viable embryos. Recently, the pretreatment of donors leading to clear improvements in oocyte developmental competence has been achieved. These treatments can be either 1) ovarian stimulation with FSH followed by the slaughter of the animal and the incubation of ovaries before oocyte aspiration or 2) the transvaginal aspiration of oocytes from FSH-stimulated animals following a "coasting period" of 48 hours. These 2 treatments indicate the necessity of preparing the immature oocyte before using it. An alternative to the animal pretreatment would be to recreate in vitro the conditions present in more mature follicles. It is believed that the ability of the oocyte to become an embryo depends on the accumulation of specific information in the form of mRNA or proteins. Because the consequences of that change become visible 4 days later at the early 8-cell stage, the favorite hypothesis is that the oocyte accumulates stable mRNA and that accumulation requires an active t...Continue Reading

References

Jun 1, 1991·Molecular Reproduction and Development·F L Barnes, N L First
Nov 1, 1990·Biology of Reproduction·M A Sirard, S Bilodeau
Jan 1, 1990·Experimental Cell Research·R M Moses, Y Masui
Dec 1, 1990·Biology of Reproduction·J MotlíkY Shioya
Sep 1, 1988·Biology of Reproduction·M A Sirard, N L First
Oct 1, 1988·Biology of Reproduction·M A SirardN L First
Mar 1, 1987·Biology of Reproduction·M L Leibfried-RutledgeN L First
Feb 1, 1984·Biology of Reproduction·J J Eppig, S M Downs
May 1, 1995·Molecular Reproduction and Development·P Blondin, M A Sirard
Sep 1, 1995·Molecular Reproduction and Development·J T Lévesque, M A Sirard
Nov 1, 1995·Journal of Reproduction and Fertility·H AktasM L Leibfried-Rutledge
Jan 1, 1996·Reproduction, Fertility, and Development·J J Eppig
Dec 1, 1996·Biology of Reproduction·J T Lévesque, M A Sirard
Mar 1, 1997·Journal of Reproduction and Fertility·P LonerganP Mermillod
Mar 25, 2000·Theriogenology·M A SirardM Mayes
Nov 1, 1996·Theriogenology·P BlondinM A Sirard
Oct 31, 1935·The Journal of Experimental Medicine·G Pincus, E V Enzmann

❮ Previous
Next ❯

Citations

Nov 15, 2002·Molecular and Cellular Endocrinology·M M Bevers, F Izadyar
Jun 24, 2003·Animal Reproduction Science·Trudee Fair
Jul 20, 2007·Zygote : the Biology of Gametes and Early Embryos·J HorakovaM Machatkova
Mar 25, 2010·Zygote : the Biology of Gametes and Early Embryos·C Andreu-VázquezM López-Béjar
Jul 29, 2011·Zygote : the Biology of Gametes and Early Embryos·Gabriel Ribas PereiraIrwin K M Liu
Jul 16, 2010·The Journal of Reproduction and Development·Anne BarbatPatrice Humblot
Sep 6, 2011·Theriogenology·Mohammed Ali Abdel-GhaniHiroshi Suzuki
Jul 31, 2009·Science in China. Series C, Life Sciences·YuFang MaNing Li
Sep 21, 2006·Reproductive Biomedicine Online·A AliP Miron
Oct 24, 2007·Theriogenology·P Lonergan, T Fair
Dec 5, 2006·Animal Reproduction Science·T A L BreviniF Gandolfi
Jul 31, 2003·Reproduction in Domestic Animals = Zuchthygiene·P LonerganM P Boland
Apr 7, 2004·Reproduction in Domestic Animals = Zuchthygiene·S ColleoniF Gandolfi
Aug 9, 2006·Molecular Reproduction and Development·Marina MourotMarc-André Sirard
Dec 20, 2005·Molecular Reproduction and Development·Margot Alves Nunes DodeMarc-André Sirard
Aug 31, 2006·Molecular Reproduction and Development·G G LeoniS Naitana
Apr 24, 2013·Molecular Reproduction and Development·Rui ZhaiLi-Jun Huo
May 12, 2010·Anatomia, histologia, embryologia·R KenngottF Sinowatz
Dec 14, 2004·Theriogenology·Gaia C LuvoniDebora Macis
Jun 27, 2014·Reproduction, Fertility, and Development·Michael J BertoldoPascal Mermillod
Nov 1, 2005·Theriogenology·Marc-André SirardClaude Robert
Sep 23, 2003·Molecular Reproduction and Development·Suofeng MaJinghe Tan
Oct 1, 2004·Molecular Reproduction and Development·Tiziana A L BreviniF Gandolfi
Mar 17, 2010·Journal of Cellular Physiology·Anima TripathiShail K Chaube

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.