Results 1 to 10 of about 170,420 (165)
Origin and function of the yolk sac in primate embryogenesis
Nature Communications, 2020 Why do human embryos need a yolk sac and how does it form? This Perspective by Thorsten Boroviak and Connor Ross explores the development and function of the yolk sac in primate embryogenesis.
Connor Ross, Thorsten E. Boroviak
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Frontiers in Cell and Developmental Biology, 2018 The yolk sac is the first observed site of hematopoiesis during mouse ontogeny. Primitive erythroid cells are the most well-recognized cell lineages produced from this tissue. In addition to primitive erythroid cells, several types of hematopoietic cells
Toshiyuki Yamane
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Direct Effects of Microalgae and Protists on Herring (Clupea harengus) Yolk Sac Larvae.
PLoS ONE, 2015 This study investigated effects of microalgae (Rhodomonas baltica) and heterotrophic protists (Oxyrrhis marina) on the daily growth, activity, condition and feeding success of Atlantic herring (Clupea harengus) larvae from hatch, through the end of the ...
Björn Illing +3 more
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Yolk sac macrophage progenitors traffic to the embryo during defined stages of development
Nature Communications, 2018 Tissue-resident macrophages are derived from yolk sac progenitors but how and when these progenitors enter is unclear. Here the authors use fate mapping and intravital microscopy to track the movement of resident macrophage precursors from the yolk sac ...
C. Stremmel +21 more
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Vascular development and hemodynamic force in the mouse yolk sac
Frontiers in Physiology, 2014 Vascular remodeling of the mouse embryonic yolk sac is a highly dynamic process dependent on multiple genetic signaling pathways as well as biomechanical factors regulating proliferation, differentiation, migration, cell-cell and cell-matrix interactions.
Monica D Garcia, Irina eLarina
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Asian Journal of Medical Sciences, 2022 Background: The yolk sac is a small, membranous structure, which is situated outside the embryo and has a variety of functions during embryonic development.
Geetanjali Srivastava +5 more
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Journal of Experimental Medicine, 2021 Yolk sac erythropoiesis is not replaced by hematopoietic stem cell–derived progeny up until birth. Yolk sac–derived erythroid progenitors require 10-fold lower concentrations of erythropoietin for differentiation, which confers a competitive advantage ...
F. Soares-da-Silva +8 more
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Modeling human yolk sac hematopoiesis with pluripotent stem cells
Journal of Experimental Medicine, 2021 Specific populations of immune cells in the adult develop from the embryonic yolk sac, independent of hematopoietic stem cells. Using the human pluripotent stem cell model, this study has mapped human yolk sac hematopoiesis, providing access to these ...
Michael H Atkins +6 more
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Visceral endoderm expression of Yin-Yang1 (YY1) is required for VEGFA maintenance and yolk sac development. [PDF]
PLoS ONE, 2013 Mouse embryos lacking the polycomb group gene member Yin-Yang1 (YY1) die during the peri-implantation stage. To assess the post-gastrulation role of YY1, a conditional knock-out (cKO) strategy was used to delete YY1 from the visceral endoderm of the yolk
Siyeon Rhee +5 more
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Scientific Reports, 2023 This longitudinal study investigated the impact of actigraphy-measured maternal physical activity on yolk sac size during early development. The yolk sac, a transient extraembryonic organ, plays a crucial role in embryonic development and is involved in ...
Alexander Vietheer +7 more
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