Results 51 to 60 of about 10,666 (158)

Morphological and Gene Expression Changes in Cattle Embryos from Hatched Blastocyst to Early Gastrulation Stages after Transfer of In Vitro Produced Embryos. [PDF]

PLoS ONE, 2015
A detailed morphological staging system for cattle embryos at stages following blastocyst hatching and preceding gastrulation is presented here together with spatiotemporal mapping of gene expression for BMP4, BRACHYURY, CERBERUS1 (CER1), CRIPTO ...
Jessica van Leeuwen, Debra K Berg, Peter L Pfeffer   +2 more
doaj   +1 more source

The X Factor in Immunity: Sex Differences Shaped by the X Chromosome

Immunological Reviews, Volume 338, Issue 1, March 2026.
ABSTRACT There are sex differences with immune responses where females exhibit stronger immune responses compared to males. Both sex hormones and sex chromosome differences between males and females contribute to the observed sex differences with innate and adaptive immune cell composition and function.
Katherine B. Radovanovic, Megan Wynalda, Montserrat C. Anguera   +2 more
wiley   +1 more source

The Origin of Endoderm: Transmission Electron Microscopic Point of View

Siriraj Medical Journal, 2020
Objective: To show the transmission electron microscopic (TEM) evidence to confirm that the endoderm originates from the epiblast of the primitive streak or from other sources.
Jantima Roongruangchai, Kosol Roongruangchai, Ratirat Kolaka   +2 more
doaj  

Ex Vivo Spatiotemporal Characterization of Spermatogenesis in Mouse Testicular Organoids

Advanced Science, Volume 13, Issue 4, 19 January 2026.
To date, in vitro spermatogenesis remains a challenge in reproductive medicine. In this study, Sun et al. developed a promising in vitro strategy to generate testicular organoids that enable germ cells from newborn mice to enter meiosis, complete chromosome recombination and synapsis, and develop into haploid spermatids.
Jiachen Sun, Lifa Zhu, Yutong Li, Jinyan Tang, Tao Zhang, Hengjia Zhang, Wanchu Wang, Lufan Li, Shuhui Bian, Xin Wu   +9 more
wiley   +1 more source

Incidence, Clinical Risk Factors, and Pregnancy Outcomes of Trophectoderm‐ and Inner Cell Mass–Poor‐Quality Blastocysts in Single Blastocyst Transfer Cycles: A Retrospective Cohort Study

Reproductive Medicine and Biology, Volume 25, Issue 1, January/December 2026.
ABSTRACT Purpose To study incidence, clinical risk factors, and pregnancy outcomes of trophectoderm‐ and inner cell mass–poor‐quality blastocysts in single blastocyst transfer cycles. Design A retrospective cohort study included patients who underwent their first single blastocyst transfer cycle.
Longbin Chen, Yangqin Peng, Shuoping Zhang, Yifan Gu, Fei Gong, Ge Lin, Lizhi Leng   +6 more
wiley   +1 more source

Principal mechanisms of extracellular matrix‐mediated cell–cell communication in physiological and tumor microenvironments

The FEBS Journal, Volume 293, Issue 1, Page 26-41, January 2026.
Intracellular communication controls the processing of generated signals so that every cell type can successfully respond. The extracellular matrix (ECM) is a fundamental regulator of cell communication and signaling through the strict orchestration and functions of its bioactive components.
Zoi Piperigkou, Sylvia Mangani, Nikolaos E. Koletsis, Christos Koutsakis, Nicholas S. Mastronikolis, Marco Franchi, Nikos K. Karamanos   +6 more
wiley   +1 more source

Remarks on taxonomy of some species of Elytrigia S.L. (Triticeae) in the light of embryo morphology

Acta Societatis Botanicorum Poloniae, 2014
Embryos of 21 accessions of the genus Elytrigia s.l. were studied. Characters of scutellum, coleoptile, coleorhiza and epiblast were taken into consideration. Correlation of characters proves an independence of epiblast organogenesis.
Romuald Kosina
doaj   +1 more source

In Vitro Gamete Production in Mammals: Decades of Pioneering Approaches in Germ Cell and Stem Cell Biology Supporting Innovative Discovery and Expansion of Human Reproductive Potential

Molecular Reproduction and Development, Volume 92, Issue 12, December 2025.
ABSTRACT During recent decades a myriad of approaches have emerged for generating surrogate gametes or achieving in vitro gametogenesis (IVG). The most recent approaches to IVG include the development of increasingly complex culture systems, use of companion cells combined with germ line cells in two‐ or three‐dimensional configurations, derivation of ...
Keith E. Latham
wiley   +1 more source

Establishment and Characterization of Bovine Trophoblast Stem Cells Growing as Adherent Cells or Vesicles

Molecular Reproduction and Development, Volume 92, Issue 12, December 2025.
ABSTRACT In ungulates, the development of the trophoblast lineage follows a peculiar process, as implantation is preceded by a relatively long period of trophoblast elongation, the molecular control of which is still not well known. Here, we have established novel bovine trophoblast stem cells (b2iTSCs) growing in a completely defined medium containing
Camille Baquerre, Apolline Delahaye, Vincent Brochard, Fabienne Nuttinck, Christian Jean, Estelle Robert, Clémence Kress, Sylvie Rival‐Gervier, Bertrand Pain, Alice Jouneau   +9 more
wiley   +1 more source

Reprogramming of rabbit induced pluripotent stem cells toward epiblast and chimeric competency using Krüppel-like factors

Stem Cell Research, 2017
Rabbit induced pluripotent stem cells (rbiPSCs) possess the characteristic features of primed pluripotency as defined in rodents and primates. In the present study, we reprogrammed rbiPSCs using human Krüppel-like factors (KLFs) 2 and 4 and cultured them
Yann Tapponnier, Marielle Afanassieff, Irène Aksoy, Maxime Aubry, Anaïs Moulin, Lucas Medjani, Wilhelm Bouchereau, Chloé Mayère, Pierre Osteil, Jazmine Nurse-Francis, Ioannis Oikonomakos, Thierry Joly, Luc Jouneau, Catherine Archilla, Barbara Schmaltz-Panneau, Nathalie Peynot, Harmonie Barasc, Alain Pinton, Jérome Lecardonnel, Elen Gocza, Nathalie Beaujean, Véronique Duranthon, Pierre Savatier   +22 more
doaj   +1 more source