Morphological study of surgically induced open neural tube defect in old (14 and 21 days) chick embryos

As an experimental model for the research of open neural tube defect (NTD), the surgical model has several advantages over others, in spite of the fact that the pathogenetic mechanism is not compatible with the human intrauterine events. To make reproducible NTDs by surgery and to compare the surgic...

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Bibliographic Details
Published in:Neuroscience letters 1995-06, Vol.192 (1), p.61-64
Main Authors: Sim, Ki-Bum, Cho, Byung-Kyu, Chi, Je G., Wang, Kyu-Chang
Format: Article
Language:English
Subjects:
Age Factors
Animals
Biological and medical sciences
Chick embryo
Chick Embryo - pathology
Disease Models, Animal
Hematoxylin
Malformations of the nervous system
Medical sciences
Neural tube defect
Neural Tube Defects - pathology
Neurology
Surgery
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Summary:As an experimental model for the research of open neural tube defect (NTD), the surgical model has several advantages over others, in spite of the fact that the pathogenetic mechanism is not compatible with the human intrauterine events. To make reproducible NTDs by surgery and to compare the surgically induced lesions with the human myeloschisis morphologically, we opened the neural tube for a length of 9–11 somites in Hamburger and Hamilton stage 16–19 chick embryos. Embryos which survived until the late in ovo life (total age 14 and 21 days) showed relatively reproducible open NTDs. Morphologically they are similar to human myeloschisis. This study suggests that the surgical model can be suitable for studies of open NTDs.
ISSN:0304-3940
1872-7972
DOI:10.1016/0304-3940(95)11610-9