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Isl Identifies the Extraembryonic Mesodermal/Allantois Progenitors and is Required for Placenta Morphogenesis and Vasculature Formation [PDF]
Advanced ScienceThe placenta links feto‐maternal circulation for exchanges of nutrients, gases, and metabolic wastes between the fetus and mother, being essential for pregnancy process and maintenance. The allantois and mesodermal components of amnion, chorion, and yolk
Xingqun Liang
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A Forgotten Fetal Remnant in Adulthood: Vesicourachal Diverticulum: A Case Report [PDF]
Clinical Case ReportsUrachal anomalies, though rare in adults, should be considered in patients with recurrent urinary tract infections. We report a 38‐year‐old woman with a bladder dome cystic lesion.
Dennis Awedam Achio +14 more
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Poultry Science, 2023 : Driven by a global trend of applying replace-reduce-refine or 3Rs’ guidance for experimental animals in life sciences, chick embryo and particularly allantois with its chorioallantoic membrane have been increasingly utilized to substitute laboratory ...
Yue Li, Yicheng Ni, Walter Coudyzer
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Hematopoietic potential of the pre-fusion allantois [PDF]
Developmental Biology, 2007 We previously showed that the fetal component of the placenta has a vigorous hematopoietic activity. Whether this organ is an environmental niche where hematopoietic stem cells (HSC) proliferate and become committed to various lineages, or whether it is also a site for HSC emergence, was left open.
Françoise Dieterlen-Lièvre
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Study of the Murine Allantois by Allantoic Explants [PDF]
Developmental Biology, 2001 The murine allantois will become the umbilical artery and vein of the chorioallantoic placenta. In previous studies, growth and differentiation of the allantois had been elucidated in whole embryos. In this study, the extent to which explanted allantoises grow and differentiate outside of the conceptus was investigated.
Karen Downs
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Dll4 assembles the umbilical cord and placental vasculature [PDF]
JCI InsightProper development of the umbilical cord and placental vasculature is essential for embryonic development. While the allantois is known give rise to endothelial cells (ECs) within the placenta, whether the allantois gives rise to ECs in the umbilical ...
Derek C. Sung +14 more
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Morphology and Immunoexpression of Selenoproteins in Term Placenta of Alpaca (Vicugna pacos) from the Peruvian Andes [PDF]
BiologySouth American camelids inhabit high-altitude environments characterized by hypoxia, influencing embryonic, fetal, and placental development. This study examined the term placenta morphology of alpacas (Vicugna pacos, N = 12) and the immunoexpression of ...
Miluska Beatriz Navarrete Zamora +8 more
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Origin and flow-mediated remodeling of the murine and human extraembryonic circulation systems [PDF]
Frontiers in PhysiologyThe transduction of mechanical stimuli produced by blood flow is an important regulator of vascular development. The vitelline and umbilico-placental circulations are extraembryonic vascular systems that are required for proper embryonic development in ...
Kristof Van Schoor +4 more
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Citation: 'allantois' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10356 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
Fuller Bazer, Gregory Johnson
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Rare presentation of urachal remnant with suprapubic sinus: A case report [PDF]
Urology Case ReportsIncomplete obliteration of the allantois during development gives rise to urachal remnants. Presentation is variable and can range from draining umbilicus to chronic granuloma to acute infection requiring management with antibiotics and surgical excision.
Sarah Cairo +2 more
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