CONDE AMIANO , Esperanza

In calcium homeostasis, vitamin D3 is a potent serum calcium-raising agent which in vivo regulates both calcitonin (CT) and parathyroid hormone (PTH) gene expression. Serum calcium is the major secretagogue for CT, a hormons product whose biosynthesis is the main biological activity of thyroid Ccells. Taking advantage of this regulatory...

The ultimobranchial follicles (UBFs) areconsidered embryonic remnants from the ultimobran-chial body (UBB). They are follicular structures thatvary in size and appearance depending on the age of therat. The main objective of this article was to study theprogressive changes in shape, size, and frequency of theUBFs in ...