| Cell distribution during mouse secondary palate closure. II. Mesenchymal cells. | |
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MedLine Citation:
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PMID: 3805979 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The patterns of distribution of both total mesenchymal cells and the ratios of [3H]thymidine-labelled to total cells were mapped during secondary palatal shelf reorientation in vivo and in vitro. Smoothed spatial averaging, a computer-assisted method which takes into account the positions of all cells across an entire histological section of the shelf, was employed. Changes in shelf cross-sectional area and cell size were also measured. Three shelf regions, anterior and posterior presumptive hard and presumptive soft palate, were studied at developmental stages which were 30, 24 and 18 h prior to expected in vivo elevation, after in vivo reorientation and during the course of in vitro reorientation. Region-specific patterns of cell distribution change with shelf reorientation. These changes were observable within 6 h. Increases in cell number by cell division may enhance some high local cell densities, but cannot account for decreases in cell density. Increase in cell size is not a factor in decreasing cell density, nor is cell death. Displacement of cells by expansion of the extracellular matrix may be involved. |
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Authors:
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L L Brinkley; F L Bookstein |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of embryology and experimental morphology Volume: 96 ISSN: 0022-0752 ISO Abbreviation: J Embryol Exp Morphol Publication Date: 1986 Jul |
Date Detail:
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Created Date: 1987-02-25 Completed Date: 1987-02-25 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7906439 Medline TA: J Embryol Exp Morphol Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 111-30 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cell Count Cell Division Cell Nucleus Cells, Cultured Mice Morphogenesis Palate / cytology, embryology* Palate, Soft / cytology, embryology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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