In this article we will discuss about:- 1. Definition of Prolactin 2. Actions of Prolactin 3. Control of Prolactin Secretion 4. Applied Aspects 5. Deficiency. Definition of Prolactin: Prolactin (PRL) is a 199-amino acid single-chain protein and has considerable structural similarity to human growth hormone and hCS. The Prolactin receptor resembles the GH receptor and belongs to the cytokine receptor [...]
Polypeptide hormones are secreted into the blood stream and have endocrine functions in living animals. Polypeptide hormones are synthesized from amino acids according to an mRNA template, which is synthesized from a DNA template inside the cell's nucleus like other proteins. Polypeptide hormones are secreted from the pituitary gland. Pituitary gland consists of two lobes: (a) Anterior lobe or adenohypophysis. [...]
The following article will guide you about how thyroxine is detected in human body. Thyroxine (3,5,3',5'-tetraiodothyronine or T4), is a major thyroid hormones secreted by the follicular cells of the thyroid gland. Thyroxine was synthesised in 1927 by British chemists, Charles Robert Harington and George Barger. Thyroxine, (prohormone) is synthesized via the iodination and covalent bonding of the phenyl portions [...]