منابع مشابه
Assembly of Gap Junctions during Amphibian Neurulation
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. The zonulae occludentes, which join contiguous neuroepithelial cells, fragment into solitary domains as the neural groove deepens. Th...
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In the prospective lumbo-sacral region of the chick embryo, neurulation is achieved by cavitation of the medullary cord, a process called secondary neurulation. Neural crest cells (NCC) are generated in this region and they give rise to the same types of derivatives as in more rostral parts of the trunk where neurulation occurs by dorsal fusion of the neural plate borders (primary neurulation)....
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INTRODUCTION Old men preparing themselves for marriage late in their lives might face infertility. Infertility in this group of men should be considered from a wider perspective, as they face any age-related health troubles that include, but are not limited to, androgen deficiency and psychological disorders that impede early conception. This review aims to shed light on the proper approach to ...
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A comparison between static versus rotator culture systems and a variety of media (rat serum, new born calf serum, DMEM and Waymouth's) was made in an attempt to promote in vitro growth of mouse embryos from the beginning of neurulation (headfold stage) to the closure of the neural tube and formation of the limb buds (48 h). The results demonstrate that good development can be achieved for 48 h...
متن کاملA simple molecular model of neurulation.
A molecular model for the morphogenesis of the central nervous system is built and solved by computer. The formalism rests on molecular-biological data gathered from insects and vertebrates during neural differentiation and neuronal fate specification. Two genetic, hierarchically organized switches are introduced, one associated with f1p4al tissue formation, and the other with neuronal specific...
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ژورنال
عنوان ژورنال: Journal of Korean Neurosurgical Society
سال: 2021
ISSN: 2005-3711,1598-7876
DOI: 10.3340/jkns.2020.0362