Primary neurulationSecondary neurulationEctodermEmbryosGastrulation and neurulationMammalian neurulationClosure of the neural tubeNeural platePrimitive streakOccursProcessConsequencesCellCellsGastrulation to neurulation and organogenesisEmbryonicCranial neurulationMammalianOrganogenesisNotochordOrgansStages
Primary neurulation4
- In primary neurulation, the neural plate creases inward until the edges come in contact and fuse. (wikipedia.org)
- Embryologically, failure of primary neurulation most often occurs in the posterior neuropore, resulting in lumbosacral region defects. (logicalimages.com)
- Primary neurulation always occurs in the brain and most of the trunk regions. (creative-biolabs.com)
- Besides, the mechanism of neural rosettes formation relates to secondary neurulation rather than that of primary neurulation. (creative-biolabs.com)
Secondary neurulation7
- Different portions of the neural tube form by two different processes, called primary and secondary neurulation, in different species. (wikipedia.org)
- In secondary neurulation, the tube forms by hollowing out of the interior of a solid precursor. (wikipedia.org)
- The retained medullary cord (RMC), caudal lipoma, and terminal myelocystocele (TMCC) are thought to originate from the failed regression spectrum during the secondary neurulation, and the central histopathological feature is the predominant presence of a central canal-like ependyma-lined lumen (CC-LELL) with surrounding neuroglial tissues (NGT), as a remnant of the medullary cord. (surgicalneurologyint.com)
- This histopathological finding indicates the presence of TMCC that could not be completely regressed and further supports the idea that these pathologies can be considered consequences of a continuum of regression failure during secondary neurulation. (surgicalneurologyint.com)
- However, the molecular mechanisms for secondary neurulation are still unknown. (creative-biolabs.com)
- The understanding of secondary neurulation presents great potentials for the prevention of caudal neural tube defects. (creative-biolabs.com)
- Differentiation of neural rosettes from human pluripotent stem cells in vitro is sequentially regulated on a molecular level and accomplished by the mechanism reminiscent of secondary neurulation. (creative-biolabs.com)
Ectoderm4
- It was Hans Spemann who first popularized the term "primary neural induction" in reference to the first differentiation of ectoderm into neural tissue during neurulation. (wikipedia.org)
- As neurulation proceeds after induction the cells of the neural plate become high-columnar and can be identified through microscopy as different from the surrounding presumptive epithelial ectoderm (epiblastic endoderm in amniotes). (wikipedia.org)
- During neurulation, ectoderm differentiates into two parts. (asu.edu)
- Here, we carry out single cell RNA sequencing of chick ectoderm from primitive streak to neurulation stage, to explore cell state diversity and heterogeneity. (bvsalud.org)
Embryos3
- Neurulation refers to the folding process in vertebrate embryos, which includes the transformation of the neural plate into the neural tube. (wikipedia.org)
- Sequential thin-section, tracer (K-pyroantimonate, lanthanum, ruthenium red, and horseradish peroxidase), and freeze-fracture studies were conducted on embryos and larvae of Rana pipiens to determine the steps involved in gap junction assembly during neurulation. (rupress.org)
- These cells form during the final stages of the process of neurulation of vertebrate embryos when the notochord- a mesoderm derived rod-like structure running from head to tail - and the adjacent mesoderm form the neural plate, which sinks below the surface of the developing embryo and forms the neural tube. (copewithcytokines.de)
Gastrulation and neurulation1
- J,K) Gastrulation and neurulation defects are partially rescued by MO-resistant pqbp1 mRNA. (xenbase.org)
Mammalian neurulation2
- Computer simulations found that cell wedging and differential proliferation are sufficient for mammalian neurulation. (wikipedia.org)
- The successful simulations of the key features in Drosophila salivary gland budding, sea urchin gastrulation, and mammalian neurulation support the generality of our results. (ku.dk)
Closure of the neural tube1
- Early in pregnancy, there can be problems with the process of neurulation and the formation and closure of the neural tube. (msu.edu)
Neural plate3
- The neural tube is formed during an embryological process called neurulation, a folding process where the neural plate transforms into the neural tube 1 . (radiopaedia.org)
- During neurulation, the middle of the neural plate folds first, followed by the anterior and posterior ends. (msu.edu)
- During the process of neurulation, the neural plate pinches together at the neural fold in the middle, and then closes at the anterior and posterior ends to form a neural tube. (msu.edu)
Primitive streak2
- We demonstrate that the GSX-positive part of the primitive streak induces gastrulation, while the GSC-expressing part induces neurulation. (edu.sa)
- The ill-defined and inaccurate term pre-embryo , which includes the embryonic disc, is said either to end with the appearance of the primitive streak or to include neurulation. (lifeissues.net)
Occurs1
- Neurulation occurs within the first month following conception in humans. (msu.edu)
Process1
- After gastrulation, the embryo goes through a process called neurulation, which starts the development of nervous system. (asu.edu)
Consequences1
- Altogether, our study is the first to offer detailed insights into the long-term consequences of X-ray exposure during neurulation, and supports the use of FA as a radioprotectant and antiteratogen to counter the detrimental effects of X-ray exposure during this crucial period of gestation. (figshare.com)
Cell1
- Even so, this approach gave rise to many successes, including understanding of cell sorting and neurulation, and it set the scene for a family of methods that allow forces maps to be built. (cam.ac.uk)
Cells1
- After full extension of the streak, the fate of cells now characterized by GSX is to undergo neurulation, while those expressing GSC undergo gastrulation. (edu.sa)
Gastrulation to neurulation and organogenesis1
- Synthetic embryos complete gastrulation to neurulation and organogenesis. (nih.gov)
Embryonic4
- 15. Neural tube defects--disorders of neurulation and related embryonic processes. (nih.gov)
- This descriptive cross-sectional study was in embryonic neurulation [1]. (who.int)
- During neurulation, the neural tube is formed, and the embryonic nervous system is patterned along the three major axes. (nih.gov)
- Both gastrulation and neurulation are critical events that occur during the 3rd week of embryonic development. (lecturio.com)
Cranial neurulation1
- The results suggest that contraction .of apical microfilament bundles plays an essential role in elevation of the neural folds and in the generation of concave curvature during the later stages of cranial neurulation. (silverchair.com)
Mammalian1
- Computer simulations found that cell wedging and differential proliferation are sufficient for mammalian neurulation. (wikipedia.org)
Organogenesis1
- 15. Neurulation and organogenesis. (unizg.hr)
Notochord1
- the notochord is critical in inducing neurulation. (lecturio.com)
Organs1
- One such process is the folding of flat, essentially two-dimensional epithelia into more complicated organs, for example during neurulation, formation of the eye cup, and during gastrulation. (biologists.com)
Stages2
- Stem cells' pluripotency (yellow) becomes increasingly restricted to specific areas of the chicken embryo as it advances through four early developmental stages, from gastrulation (top left) to neurulation (bottom right). (nih.gov)
- Illustrations demonstrating key stages in neurulation represent the intact embryo at 2 early stages of development with representative transverse sections through the embryo. (nih.gov)