Quantitative changes in the frequency and distribution of the C-cell population in the rat thyroid gland with age

1992 ◽  
Vol 270 (1) ◽  
pp. 73-77 ◽  
Author(s):  
I. Mart�n-Lacave ◽  
E. Conde ◽  
C. Montero ◽  
H. Galera-Davidson
Keyword(s):  
Thyroid Gland ◽  
Cell Population ◽  
C Cell ◽  
Quantitative Changes ◽  
Rat Thyroid ◽  
Rat Thyroid Gland

Effects of toxic doses of a novel histamine (H2) antagonist on the rat thyroid gland

1987 ◽  
Vol 25 (10) ◽  
pp. 787-794 ◽  
Author(s):  
C.G. Brown ◽  
R.F. Harland ◽  
I.R. Major ◽  
C.K. Atterwill
Keyword(s):  
Thyroid Gland ◽  
H2 Antagonist ◽  
Histamine H2 Antagonist ◽  
Rat Thyroid ◽  
Rat Thyroid Gland

Mechanism of Action of TSH Studied by Organ Culture of Fetal Rat Thyroid Gland.

1967 ◽  
Vol 124 (1) ◽  
pp. 7-12 ◽  
Author(s):  
B. M. Nataf ◽  
I. L. Chaikoff ◽  
W. E. Freeman
Keyword(s):  
Thyroid Gland ◽  
Organ Culture ◽  
Mechanism Of Action ◽  
Fetal Rat ◽  
Rat Thyroid ◽  
Rat Thyroid Gland

CORRELATION OF IODIDE TRANSPORT WITH Na+, K+ -ATPase, HCO−3-ATPase AND CARBONIC ANHYDRASE ACTIVITIES IN DIFFERENT FUNCTIONAL STATES OF THE RAT THYROID GLAND

1982 ◽  
Vol 92 (3) ◽  
pp. 371-379 ◽  
Author(s):  
S.-Y. CHOW ◽  
J. W. KEMP ◽  
D. M. WOODBURY
Keyword(s):  
Thyroid Gland ◽  
Carbonic Anhydrase ◽  
Protein Content ◽  
Chronic Treatment ◽  
Cell Water ◽  
Iodide Uptake ◽  
G Cell ◽  
Functional States ◽  
Rat Thyroid ◽  
Rat Thyroid Gland

The effects of thyrotrophin, hypophysectomy, and chronic treatment with thyroxine and methimazole on radioiodide uptake (thyroid/plasma (T/P) 125I− ratio), protein and DNA contents and activities of Na+,K+ -ATPase, HCO−3-ATPase, and carbonic anhydrase (CA) of rat thyroid gland were evaluated. Thyrotrophin given to intact rats slightly increased thyroid iodide uptake, did not affect protein or DNA content, and slightly inhibited CA activity (units/g cell water). Hypophysectomy markedly decreased T/P 125I− ratio, increased protein content, decreased activity of Na+,K+-ATPase, and slightly increased HCO−3-ATPase (nmol/mg DNA per min) and CA (units/g cell water) activities. Thyro-trophin given to hypophysectomized rats (as compared with untreated hypophysectomized control animals) markedly increased T/P 125I− ratio, slightly decreased protein content and decreased Na+,K+-ATPase and CA activities. Chronic treatment with methimazole increased T/P 125I− ratio, decreased protein content, markedly increased Na+,K+-ATPase and HCO−3-ATPase activities, and decreased CA activity. Chronic treatment with thyroxine, in contrast, decreased T/P 125I− ratio, decreased Na+,K+-ATPase activity, and increased CA activity. There was a significant inverse correlation between T/P 125I− ratio and CA activity in follicular cells for the various induced functional states of the thyroid.

scholarly journals The free iodotyrosines of the rat thyroid gland

1963 ◽  
Vol 86 (1) ◽  
pp. 86-92 ◽  
Author(s):  
R PITT-RIVERS ◽  
RR CAVALIERI
Keyword(s):  
Thyroid Gland ◽  
Rat Thyroid ◽  
Rat Thyroid Gland

scholarly journals Immunocytochemical localization of cathepsins B, H, L, and T4 in follicular cells of rat thyroid gland.

1989 ◽  
Vol 37 (5) ◽  
pp. 691-696 ◽  
Author(s):  
Y Uchiyama ◽  
T Watanabe ◽  
M Watanabe ◽  
Y Ishii ◽  
H Matsuba ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Thyroid Tissue ◽  
Double Immunostaining ◽  
Follicular Cells ◽  
Thin Sections ◽  
Dense Granules ◽  
Dense Bodies ◽  
Rat Thyroid ◽  
Monospecific Antibodies ◽  
Rat Thyroid Gland

To localize cathepsins B, H, and L in follicular cells of rat thyroid gland, we applied immunocytochemistry to the thyroid tissue using their respective monospecific antibodies. On serial semi-thin sections, cathepsins B, H, and L were localized in granules of various sizes located throughout the cytoplasm, whereas T4 was detected in larger granules located in the apical and supranuclear regions. By electron microscopy, cathepsins B, H, and L were localized in large less-dense granules (so-called colloid droplets) and in dense bodies of various sizes, whereas T4 was localized more intensely in large less-dense granules than in smaller dense bodies. By double immunostaining using an immunogold method, cathepsins H and B or L were co-localized in the same cytoplasmic granules. Moreover, immunoblotting demonstrated that proteins similar to cathepsins B, H, and L in the liver are present in the thyroid gland. These results suggest that cathepsins B, H, and L participate not only in degradation of thyroglobulin but in maturation of thyroid hormones, although it remains unknown whether all of them participate in the maturation process.

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