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Cell proliferation in the cranial base of A/J mice with 6‐AN‐induced cleft palate

Long, Sally Y. ; Larsson, K. Sune and Lohmander, Stefan LU orcid (1973) In Teratology 8(2). p.127-138
Abstract

Midsagittal sections of the heads of day 14.5–15.0 control A/J mouse fetuses revealed three areas of rapidly growing cartilage in the cranial base:mesethmoid, presphenoid, and craniopharyngeal. There was a curvature in the presphenoid, which straightened by the time of palatine shelf movement In fetuses of females treated with 6‐aminonicotinamide (6‐AN) on gestation day 13 the presphenoid had not straightened by day 15.5 and these fetuses all had cleft palate. In nontreated mice with spontaneous cleft lip and palate the presphenoid straightening was not impaired. Autoradiographs of [3H] thymidine uptake in the cranial base of experimental fetuses revealed selective impairment of cell proliferation in the presphenoid as judged... (More)

Midsagittal sections of the heads of day 14.5–15.0 control A/J mouse fetuses revealed three areas of rapidly growing cartilage in the cranial base:mesethmoid, presphenoid, and craniopharyngeal. There was a curvature in the presphenoid, which straightened by the time of palatine shelf movement In fetuses of females treated with 6‐aminonicotinamide (6‐AN) on gestation day 13 the presphenoid had not straightened by day 15.5 and these fetuses all had cleft palate. In nontreated mice with spontaneous cleft lip and palate the presphenoid straightening was not impaired. Autoradiographs of [3H] thymidine uptake in the cranial base of experimental fetuses revealed selective impairment of cell proliferation in the presphenoid as judged by a significant decrease in labeled nuclei. It is proposed that straightening of the presphenoid is necessary for palatine shelf movement and normal palate closure.

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publishing date
type
Contribution to journal
publication status
published
subject
in
Teratology
volume
8
issue
2
pages
12 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:4270522
  • scopus:0015856936
ISSN
0040-3709
DOI
10.1002/tera.1420080203
language
English
LU publication?
no
id
66e540da-f4eb-4971-8b5b-33a26486d342
date added to LUP
2020-12-02 09:09:00
date last changed
2024-01-03 00:46:52
@article{66e540da-f4eb-4971-8b5b-33a26486d342,
  abstract     = {{<p>Midsagittal sections of the heads of day 14.5–15.0 control A/J mouse fetuses revealed three areas of rapidly growing cartilage in the cranial base:mesethmoid, presphenoid, and craniopharyngeal. There was a curvature in the presphenoid, which straightened by the time of palatine shelf movement In fetuses of females treated with 6‐aminonicotinamide (6‐AN) on gestation day 13 the presphenoid had not straightened by day 15.5 and these fetuses all had cleft palate. In nontreated mice with spontaneous cleft lip and palate the presphenoid straightening was not impaired. Autoradiographs of [<sup>3</sup>H] thymidine uptake in the cranial base of experimental fetuses revealed selective impairment of cell proliferation in the presphenoid as judged by a significant decrease in labeled nuclei. It is proposed that straightening of the presphenoid is necessary for palatine shelf movement and normal palate closure.</p>}},
  author       = {{Long, Sally Y. and Larsson, K. Sune and Lohmander, Stefan}},
  issn         = {{0040-3709}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{127--138}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Teratology}},
  title        = {{Cell proliferation in the cranial base of A/J mice with 6‐AN‐induced cleft palate}},
  url          = {{http://dx.doi.org/10.1002/tera.1420080203}},
  doi          = {{10.1002/tera.1420080203}},
  volume       = {{8}},
  year         = {{1973}},
}