Results 41 to 50 of about 8,745 (179)

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

Acta Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi, Bernhard Egger, Isabel L. Dittmann, Verónica N. Bulnes, Pavel Tomancak, Abdel Halim Harrath, Johannes Girstmair   +6 more
wiley   +1 more source

Necdin and neuronatin genes expression among diploid parthenogenetic, IVF and in vivo derived female sexed embryos during preimplantation development in goat

Indian Journal of Animal Sciences, 2014
The present research work was undertaken to compare the expression of necdin (Ndn) and neuronatin (Nnat) genes among diploid parthenogenetic (DIP), female sexed in vivo and female sexed in vitro produced embryonic cell colony.
R RANJAN, RENU SINGH, KULDEEP KUMAR, M SARKAR, B C DAS, SADHAN BAG   +5 more
doaj   +1 more source

Phosphatase PPP1CC Regulates the First Lineage Segregation by GAS5 in Mouse Preimplantation Embryos

Cell Proliferation, EarlyView.
Subcortical GAS5 directs PPP1CC phosphatase spatiotemporal positioning during mouse morula‐blastocyst transition, controlling YAP dephosphorylation to drive first embryonic lineage specification. ABSTRACT The transcriptional effector of the Hippo signalling pathway, YAP, regulates the first lineage specification in mouse preimplantation embryos ...
Jianwu Wang, Yan Zhang, Laijin Wu, Hongshuang Xie, Guang Yang, Yiwei Zhang, Cheng Huang, Shanyi Chou, Xuehan Li, Zhonghua Liu, Jiaqiang Wang   +10 more
wiley   +1 more source

Abnormal cleavage patterns in equine in vitro‐produced embryos lead to higher early pregnancy loss

Equine Veterinary Journal, EarlyView.
Summary Background Despite significant advances, in vitro production (IVP) of equine embryos continues to lack standardised embryo classification criteria and is associated with increased rates of early pregnancy loss compared with in vivo‐derived blastocysts.
Soledad Martin‐Pelaez, Alejandro de la Fuente, Kazuki Takahashi, Hugo Monteiro, Mauricio Mendes, Stuart Meyers, Pouya Dini   +6 more
wiley   +1 more source

Transferência de blastocisto após descongelamento de embriões em mórula resultando em gestação gemelar: relato de caso Twin pregnancy after thawing of morula embryos and blastocyst transfer: case report

Revista Brasileira de Ginecologia e Obstetrícia, 1999
A criopreservação de embriões em estágios mais tardios do desenvolvimento parece apresentar resultados satisfatórios. Com o objetivo de melhor testar a sobrevivência e o desenvolvimento de embriões, os mesmos foram criopreservados e descongelados em ...
Luiz Eduardo T. Albuquerque, Maria Cecília R. Maciel, Paulo C. Matheus, Edir Catafesta, Dirceu Henrique Mendes Pereira   +4 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

‘EcoCleanR': enhancing data quality of biogeographic ranges with application for marine invertebrates

Ecography, Volume 2026, Issue 3, March 2026.
Published distribution data, while invaluable for understanding species' biogeography, often suffer from limitations such as dated and static representations of ranges, a bias toward latitudinal information, and lack of resolution in sampling frequency and variation in abundance throughout a species' distribution.
Priyanka Soni, Austin J. W. Hendy, David J. Bottjer   +2 more
wiley   +1 more source

Comparison of Clinical Outcomes between the Fourth Day and the Fifth Day Embryo Transfer in IVF/ICSI Cycles: A Retrospective Cohort Study before and after PSM

Clinical and Experimental Obstetrics & Gynecology
Background: The question of whether extending embryo culture can provide more benefits for clinical outcomes has been raised. It is important to explore whether the fourth day morulae could be a widely used alternative transplantation option to replace ...
Yasong Geng, Fangfang Dai, Meiyang Du, Linlin Tao, Haoyang Dai, Bo Zheng, Shusong Wang   +6 more
doaj   +1 more source

Supplementation of fetal bovine serum alters histone modification H3R26me2 during preimplantation development of in vitro produced bovine embryos

Pesquisa Veterinária Brasileira, 2015
In vitro production (IVP) of bovine embryos is not only of great economic importance to the cattle industry, but is also an important model for studying embryo development.
Daniel R. Arnold, Carolina A.P. Corrêa, Laura L.G. Lorena, Roberta C. Gaspar, Guilherme F. Rossi, Aderson M. Ifran, João C.T. Penteado, Gisele Mingoti, Flavia L. Lopes   +8 more
doaj   +1 more source

Transcription Factor TCF12‐Mediated Maternal Gene Expressions in Mouse Oocyte Are Prerequisites of Successful Fertilisation and Zygotic Genome Activation

Cell Proliferation, Volume 59, Issue 3, March 2026.
Maternal TCF12 ensures the competence of fertilisation by controlling the expression of Astl and the proper location of cortical granules. Furthermore, maternal TCF12 maintains the phosphatase activity of PP2A by regulating the expression of Arpp19. Oocyte‐specific deletion of Tcf12 leads to fertilisation defects as well as ZGA failure at the 2‐cell ...
Lan‐Rui Cao, Chi Zhang, Zuo‐Qi Deng, Yue‐xin Qiu, Zhao Zhang, Heng‐Yu Fan, Jing Li, Hong‐Bo Wu   +7 more
wiley   +1 more source