Effect of pineal peptide hormones on the functional activity of the human thyroidin Vitro. Effect of pineal peptides on the accumulation of cyclic nucleotides in the normal human thyroid and its secretory activity

1993 ◽  
Vol 116 (5) ◽  
pp. 1406-1408
Author(s):  
E. S. Rom-Bugoslavskaya ◽  
V. Yu. Gal'chinskaya ◽  
I. V. Komarova
Keyword(s):  
Cyclic Nucleotides ◽  
Functional Activity ◽  
Secretory Activity ◽  
Peptide Hormones ◽  
Human Thyroid ◽  
Pineal Peptides ◽  
Normal Human ◽  
Vitro Effect

Ultrastructural modification of cellular interactions in cancer tumor

1978 ◽  
Vol 36 (2) ◽  
pp. 318-319
Author(s):  
N. P. Dmitrieva
Keyword(s):  
Cancer Cells ◽  
Human Thyroid ◽  
Adjacent Cell ◽  
Main Role ◽  
Cellular Interactions ◽  
Electron Microscopic ◽  
Cancer Tumor ◽  
Normal Human ◽  
Characteristic Features

One of the most characteristic features of cancer cells is their ability to metastasia. It is suggested that the modifications of the structure and properties of cancer cells surfaces play the main role in this process. The present work was aimed at finding out what ultrastructural features apear in tumor in vivo which removal of individual cancer cells from the cell population can provide. For this purpose the cellular interactions in the normal human thyroid and cancer tumor of this gland electron microscopic were studied. The tissues were fixed in osmium tetroxide and were embedded in Araldite-Epon.In normal human thyroid the most common type of intercellular contacts was represented by simple junction formed by the parallelalignment of adjacent cell membranees leaving in between an intermembranes space 15-20 nm filled with electronlucid material (Fig. 1a). Sometimes in the basal part of cells dilatations of the intercellular space 40-50 nm wide were found (Fig. 1a). Here the cell surfaces may form single short microvilli.

COMPOSITION EN ACIDES AMINES DE THYROGLOBULINES PROVENANT DE SUJETS EUTHYROIDIENS ET GOITREUX

1966 ◽  
Vol 53 (2) ◽  
pp. 297-302 ◽  
Author(s):  
Janine Bismuth ◽  
Marcel Rolland ◽  
Serge Lissitzky
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Human Thyroid ◽  
Thyroid Glands ◽  
Acides Aminés ◽  
Normal Human

ABSTRACT Amino acid composition of S19 thyroglobulin purified from three normal human thyroid glands, a hyperthyroid goiter, two hypothyroid familial goiters and a euthyroid goiter, has been determined. No significant differences in amino acid composition has been observed.

Parafollicular Cells in the Normal Human Thyroid

Nature ◽  
1971 ◽  
Vol 230 (5292) ◽  
pp. 334-335 ◽  
Author(s):  
STEVEN L. TEITELBAUM ◽  
KENNETH E. MOORE ◽  
WILLIAM SHIEBER
Keyword(s):  
Human Thyroid ◽  
Parafollicular Cells ◽  
Normal Human

“IN VIVO” AND “IN VITRO” EFFECT OF ASCORBIC ACID AND ACTH ON THE RAT ADRENAL CORTEX

1952 ◽  
Vol 30 (3) ◽  
pp. 157-162
Author(s):  
A. DesMarais ◽  
J. Leblanc
Keyword(s):  
Ascorbic Acid ◽  
Adrenal Cortex ◽  
Adrenal Glands ◽  
Secretory Activity ◽  
In Vitro Experiments ◽  
Hypophysectomized Rats ◽  
Vitro Effect ◽  
Histochemical Examination

Histochemical examination of adrenal glands of hypophysectomized rats given both ascorbic acid and ACTH showed an enlargement of the cortex and a decrease of sudanophilic substances, as compared to adrenals of hypophysectomized rats receiving ACTH alone. “In vitro” experiments on incubated slices of adrenal glands have shown that ascorbic acid and ACTH have a synergistic effect on the secretory activity of the cells of the adrenal cortex.

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