Yolk Sac

Known as: sac yolk, Sacs, Yolk, Vitelline Sac of Embryo 
The first of four extra-embryonic membranes to form during EMBRYOGENESIS. In REPTILES and BIRDS, it arises from endoderm and mesoderm to incorporate… (More)
National Institutes of Health

Papers overview

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Review
2017
Review
2017
Microglia are essential for the development and function of the adult brain. Microglia arise from erythro-myeloid precursors in… (More)
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Highly Cited
2012
Highly Cited
2012
Langerhans cells (LCs) are the dendritic cells (DCs) of the epidermis, forming one of the first hematopoietic lines of defense… (More)
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Highly Cited
2007
Highly Cited
2007
The embryonic heart and vessels are dynamic and form and remodel while functional. Much has been learned about the genetic… (More)
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Highly Cited
2003
Highly Cited
2003
Formation of the yolk sac vascular system and its connection to the embryonic circulation is crucial for embryo survival in both… (More)
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Highly Cited
2002
Highly Cited
2002
The extent to which primitive embryonic blood progenitors contribute to definitive lymphoid-myeloid hematopoiesis in the adult… (More)
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Highly Cited
1999
Highly Cited
1999
In this study, we have mapped the onset of hematopoietic development in the mouse embryo using colony-forming progenitor assays… (More)
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Highly Cited
1999
Highly Cited
1999
Microglia, the resident CNS macrophages, represent about 10% of the adult brain cell population. Although described a long time… (More)
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Highly Cited
1996
Highly Cited
1996
TGF-beta signaling is mediated through two types of serine/threonin kinase-containing receptors, type I (TGF-betaRI) and type II… (More)
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Highly Cited
1995
Highly Cited
1995
The scl gene encodes a basic-helix-loop-helix transcription factor which was identified through its involvement in chromosomal… (More)
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Highly Cited
1985
Highly Cited
1985
The in vitro developmental potential of mouse blastocyst-derived embryonic stem cell lines has been investigated. From 3 to 8… (More)
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