Effects of excess vitamin a on the cranial neural crest in the chick embryo

Keith, J.

Annals of the Royal College of Surgeons of England 59(6): 479-483

1977


ISSN/ISBN: 0035-8843
PMID: 931329
Document Number: 122963
Experiments on fertile hens' eggs have shown that an excess of vitamin A has a highly specific effect on the migration of cranial neural crest cells in the early stages of chick embryogenesis. Migration is disrupted and retarded. This is consistent with the causal mechanism proposed by Poswillo for the Treacher Collins syndrome.

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