Results 51 to 60 of about 8,535 (205)

Large‐Scale Bioprinting of Human Epiblast‐Like Models Featuring Disc‐Shaped Morphogenesis and Gastrulation Events

open access: yesAdvanced Science, EarlyView.
Large‐scale generation of disc‐shaped models mimicking human epiblast layer is achieved by bioprinting of human pluripotent stem cells using a well‐defined biomatrix. The bioactive component and physical confinement from laminin/alginate microgels, combined with the endogenous regulation of the WNT signaling pathway regulated disc‐like morphogenesis ...
Yixue Luo   +11 more
wiley   +1 more source

Deep sequencing and expression of microRNAs from early honeybee (Apis mellifera) embryos reveals a role in regulating early embryonic patterning

open access: yesBMC Evolutionary Biology, 2012
Background Recent evidence supports the proposal that the observed diversity of animal body plans has been produced through alterations to the complexity of the regulatory genome rather than increases in the protein-coding content of a genome.
Zondag Lisa   +2 more
doaj   +1 more source

Embryonic cerebrospinal fluid pressure in fetal mice in utero: External factors pressurize the intraventricular space

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Previous experiments inducing leakage of embryonic cerebrospinal fluid (CSF) suggest the necessity of intraventricular CSF pressure (PCSF) for brain morphogenesis. Nevertheless, how embryonic PCSF occurs is unclear, especially in utero. Results Using a Landis water manometer, we measured PCSF in fetal mice isolated from the amniotic
Koichiro Tsujikawa   +2 more
wiley   +1 more source

Embryonic Annexes [PDF]

open access: yes, 2014
In vertebrates, depending on the environment in which an embryo develops, different types of extraembryonic membranes are formed. In placental mammals the following extraembryonic membranes are formed: amnion, yolk sac, allantois, chorion and placenta ...
Rodríguez, Ángel, Rojas, Mariana
core   +2 more sources

Chorioallantoic membrane assay as model for angiogenesis in tissue engineering : focus on stem cells [PDF]

open access: yes, 2020
Tissue engineering aims to structurally and functionally regenerate damaged tissues, which requires the formation of new blood vessels that supply oxygen and nutrients by the process of angiogenesis.
Bronckaers, Annelies   +6 more
core   +3 more sources

Development of node architecture and emergence of molecular organizer characteristics in the pig embryo

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The avian node is the equivalent of the amphibian Spemann's organizer, as indicated by its ability to induce a secondary axis, cellular contribution, and gene expression, whereas the node of the mouse, which displays limited inductive capacities, was suggested to be a part of spatially distributed signaling.
Braah Harmoush   +2 more
wiley   +1 more source

Mice Lacking Dad1, the Defender against Apoptotic Death-1, Express Abnormal N-Linked Glycoproteins and Undergo Increased Embryonic Apoptosis [PDF]

open access: yes, 2000
Dad1 has been shown to play a role in preventing apoptotic cell death and in regulating levels of N-linked glycosylation in Saccharomyces cerevisiae and the BHK hamster cell line.
Cado, D.   +5 more
core   +1 more source

A network of transient domains for breaking symmetry during anterior–posterior axis formation in the porcine embryo

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Breaking radial symmetry for anterior–posterior axis formation is one of the key developmental steps of vertebrate gastrulation and is established through a succession of transient domains defined by morphology or gene expression. Three such domains were interpreted recently in the rabbit to be part of a “three‐anchor‐point model” for axis ...
Ruben Plöger   +2 more
wiley   +1 more source

Pathways of trunk neural crest cell migration in the mouse embryo as revealed by vital dye labelling [PDF]

open access: yes, 1990
Analysis of neural crest cell migration in the mouse has been difficult due to the lack of reliable cell markers. Recently, we found that injection of DiI into the chick neural tube marks premigratory neural crest cells whose endfeet are in contact with ...
Bronner-Fraser, Marianne E.   +2 more
core  

Modeling mammalian gastrulation with embryonic stem cells

open access: yes, 2017
Understanding cell fate patterning and morphogenesis in the mammalian embryo remains a formidable challenge. Recently, in vivo models based on embryonic stem cells (ESCs) have emerged as complementary methods to quantitatively dissect the physical and ...
Amita   +65 more
core   +1 more source

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