Results 111 to 120 of about 420,620 (395)

Regulated mitochondrial DNA replication during oocyte maturation is essential for successful porcine embryonic development. [PDF]

open access: yes, 2006
Cellular ATP is mainly generated through mitochondrial oxidative phosphorylation, which is dependent on mitochondrial DNA (mtDNA). We have previously demonstrated the importance of oocyte mtDNA for porcine and human fertilization.
Alexander, Jan   +26 more
core   +5 more sources

Efficient Somatic Cell Nuclear Transfer by Overcoming Both Pre‐ and Post‐Implantation Epigenetic Barriers

open access: yesAdvanced Science, EarlyView.
Mammalian cloning via SCNT is limited by several epigenetic barriers. Kdm4d/Kdm5b overexpression plus TSA treatment overcomes epigenetic barriers during pre‐implantation development, while tetraploid complementation replaces defective extraembryonic lineages to bypass H3K27me3 imprinting loss to overcome epigenetic barriers in post‐implantation ...
Yamei Li   +13 more
wiley   +1 more source

Congelação de ovócitos desnudados ou não, maturos e imaturos de bovinos, utilizando o Etileno Glicol pelo método convencional Freezing of either naked or no-naked, matured and immature oocytes from cows, using the Ethylene Glycol by the conventional method

open access: yesRevista Brasileira de Zootecnia, 2004
Objetivou-se avaliar os efeitos da criopreservação pelo método convencional em ovócitos imaturos e maturados in vitro. Utilizou-se ovócitos provenientes de ovários de vacas abatidas em matadouro, distribuídos em seis tratamentos: ovócitos não-congelados ...
Letícia Martins Fagundes   +4 more
doaj   +1 more source

Manipulating Unisexual–Sexual Reproduction Transition to Engineer Genome‐Reconstructed Polyploids

open access: yesAdvanced Science, EarlyView.
This study developed an efficient approach to generate genome‐reconstructed polyploids involving unisexual gynogenetic Carassius gibelio, sexual C. auratus, and sexual C. cuvieri. The selected superior clone inherited gynogenesis ability of C. gibelio and herpesvirus resistance of wild C.
Meng Lu   +9 more
wiley   +1 more source

Genomic Insights into the Origin, High Fecundity and Environmental Adaptation of Hu Sheep

open access: yesAdvanced Science, EarlyView.
The Hu sheep diverged from the Small‐tailed Han sheep ≈1330 years ago, and subsequently migrated from northern to warm and humid southern regions. The genes BMPR1B, UNC5C, and GRID2 play a synergistic role in the superior reproductive traits of Hu sheep.
Zexuan Liu   +12 more
wiley   +1 more source

Intermediate Filament Protein BFSP2 Controls Spindle Formation via HSC70‐Mediated Stabilization of CLTC During Oocyte meiosis

open access: yesAdvanced Science, EarlyView.
Meiosis is a specialized form of cell division that has different regulation and mechanisms with mitosis in numerous aspects. Particularly, meiosis I is unique and occurs only in germ cells to separate homologous chromosomes. Thus, determining how this unusual chromosome segregation behavior is established is central to understanding germ cell ...
Yu Li, Zihao Zhang, Yu Zhang, Bo Xiong
wiley   +1 more source

Gene expression studies on bovine oocyytes and embryos subjected to various heat stress and heat shock conditions [PDF]

open access: yes, 2018
Tese de Doutoramento, Ciências Agrárias, 14 de junho de 2018, Universidade dos Açores.Increasing temperature mainly by global warming has been showing rapid environmental temperature chances, unpredictable climatic changes.
Pavani, Krishna Chaitanya
core  

Human oocytes and zygotes are ready for ultra-fast vitrification after 2 minutes of exposure to standard CPA solutions [PDF]

open access: yes, 2019
Vitrification of human oocytes and embryos in different stages of development is a key element of daily clinical practice of in vitro fertilization treatments.
Gallardo Molina, Miguel   +2 more
core   +1 more source

The optimum number of oocytes in IVF treatment: an analysis of 2455 cycles in China.

open access: yesHuman Reproduction, 2013
STUDY QUESTION What is the association between the number of oocytes retrieved and the live birth rate (LBR) following first IVF treatment cycles in China?
Jingjuan Ji   +5 more
semanticscholar   +1 more source

Artificial Intelligences: A Bridge Toward Diverse Intelligence and Humanity's Future

open access: yesAdvanced Intelligent Systems, EarlyView.
Many discussions of artificial intelligence fail to address deeper questions being raised by advances in developmental biology, neuroscience, bioengineering, and philosophy of mind. Novel beings, including technologically and biologically augmented humans, engineered life forms, hybrots, and others, require tools of the emerging field of diverse ...
Michael Levin
wiley   +1 more source

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