Rat Thyroids Were Stained For Calcitonin

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Evidence of the Occurrence of Calcitonin Cells in the Ultimobranchial ...

Abstract. A study on thyroid glands of Wistar rats of ages ranging from 1 to 120 days was carried out. The glands were serially sectioned and stained for calcitonin using the peroxidase antiperoxidase method. All the thyroids contained ultimobranchial follicles (UBF) located partially embedded among the usual follicles but in a 5-day-old rat this structure showed an unusual position in the ...

Rat thyroids were stained for calcitonin , H&E and for carcinoembryonic antigen (CEA). Thyroid C-cell hyperplasia was graded on H&E stained slides using cell size and secretory granule numbers, morphological features of the parathyroid glands and the serum calcium concentrations of the rats were also evaluated.

Calcitonin is expressed in the submaxillary glands of rats

In conclusion, PER1 expression peaked late at night/early in the morning in hormone-producing cells of both the thyroid and parathyroid glands. In the parathyroids, this was preceded by a PTH peak, while neither CT nor CRS were found to oscillate. Keywords: thyroid gland, parathyroid hormone, calcitonin , PER1, rat 1. Introduction

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Rat Thyroids Were Stained For Calcitonin

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PER1 Oscillation in Rat Parathyroid Hormone and Calcitonin ...

The staining of the calcium-sensitive receptor (CSR) did not demonstrate circadian oscillation. In conclusion, PER1 expression peaked late at night/early in the morning in hormone-producing cells of both the thyroid and parathyroid glands. In the parathyroids, this was preceded by a PTH peak, while neither CT nor CRS were found to oscillate.

Consecutive resin sections of thyroid (3-day old rat ) stained for calcitonin (a) and somatostatin (b). Note that all somatostatin-immunoreactive cells contain calcitonin immunoreactivity, but that all calcitonin cells do not contain somatostatin (arrows).

Ultrastructural localization of calcitonin, somatostatin and serotonin ...

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Rat Thyroids Were Stained For Calcitonin

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Three hormones were demonstrated in ultrathin sections of the rat thyroid using immunocytochemical methods with either a PAP complex or a protein A-gold complex as the tabel. In control rats , calcitonin was found to be present in all parafollicular cells and somatostatin in occasional cells. In rats pretreated with 5-hydroxytryptophan, serotonin was detected in all parafollicular cells as well ...

Immunomarking of calcitonin -positive cells was statistically significant higher in the thyroid tissue of rats exposed to 2.45 GHz radiofrequency and cell hyperplasia appeared 90 min after ...

Biosynthesis of calcitonin by a rat medullary thyroid carcinoma cell ...

These experiments were performed with a calcitonin -pro- ducing rat medullary thyroid carcinoma cell line. The high level of calcitonin biosynthetic activity of this cell line makes it feasible to identify not only the major processing steps, but also minor pathways involving co- or post-translationally modified procalcitonin.

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