ISSN:
1432-0878
Keywords:
Pituitary gland (rat)
;
TRH administration
;
TSH and Prolactin cells
;
Ultrastructure, radioautography
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary In intact male rats after TRH administration for 7 and 14 days, TSH cells showed similar morphological changes to those observed after thyroidectomy. These changes were paralleled by small numerical increases in TSH cell counts. After 34 days of TRH treatment, however, most of the TSH cells had a normal appearance and the number of TSH cells also had returned to normal. TRH treatment for 7, 14 and 34 days caused morphological changes in Prolactin cells similar to those obtained after a suckling stimulus. In the three groups these changes were also paralleled by small numerical increases in Prolactin cell counts. The cell replication after TRH for 7 and 14 days, as measured by incorporation of tritiated thymidine to obtain a labeling index, was slightly but significantly increased.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00307187
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