Document Detail


Quantitative changes of the C-cell population in the rat thyroid during postnatal ontogenesis.
MedLine Citation:
PMID:  56235     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The number and distribution of C-cells in the rat thyroid gland, have been investigated during postnatal ontogenesis from birth to 120 days of age. The argyrophilic and metachromatic properties of these cells were used to identify them. In the thyroid of newborn rats the C-cells do not exhibit argyrophilia and metachromasia. These reactions appear at 10 days and can be seen at all subsequent ages. The number of C-cells shows a parallel increase with age as demonstrated by the change in the proportion of C-cells: F-cells: colloid: stroma during development. A marked increase in C-cells was found at 50 days of age when the proportion of C-cells rose to 27.67% from the value of 16.78% at 30 days. At 70 days a decrease was noted (20.50%) which hardly changed until 120 days of age (22.20%). The numerical increase in C-cells occurs at the expense of the follicular epithelium and stroma. The C-cells occupy elongated islet-like region in the central part of the lells are present. The long axis of the C-cells area is parallel with the longitudinal axis of the lobe. The area of C-cells is largest at the centre of the lobe, corresponding to the territory of the peak of the Gaussian curve for the numerical distribution of C-cells.
Authors:
M Petkó; G Rigó; Z Varga
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cell and tissue research     Volume:  166     ISSN:  0302-766X     ISO Abbreviation:  Cell Tissue Res.     Publication Date:  1976 Feb 
Date Detail:
Created Date:  1976-05-20     Completed Date:  1976-05-20     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0417625     Medline TA:  Cell Tissue Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  541-52     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Age Factors
Animals
Animals, Newborn
Calcitonin / biosynthesis
Rats
Staining and Labeling
Thyroid Gland / cytology,  growth & development*
Tolonium Chloride
Chemical
Reg. No./Substance:
9007-12-9/Calcitonin; 92-31-9/Tolonium Chloride

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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