Here is a compilation of notes on hormones. After reading these notes you will learn about: 1. Meaning of Hormones 2. Characteristics of Hormones 3. Classification 4. Synthesis 5. Transport and Metabolism 6. Patterns of Secretion 7. Control of Secretion 8. General Functions 9. General Mechanisms. Contents: Notes on the Meaning of Hormones Notes on the Characteristics of Hormones Notes [...]
In this article we will discuss about:- 1. Biochemistry of Thyroid Hormone 2. Synthesis of Thyroid Hormone 3. Secretion. Biochemistry of Thyroid Hormone: Thyroid follicular cells synthesise and secrete two iodinated amino acids as hormones, viz., thyroxine or T4 or 3, 5, 3', 5'-tetraiodothyronine and T3 or 3, 5, 3'- triiodothyronine (Fig. 7.19). Instead of these hormones, the C cells [...]
Steroid hormones exert their action on target cells after binding to specific receptors which are ligand-inducible transcription factors localized primarily within the nucleus. The steroid-receptor complex regulates the synthesis of specific proteins primarily by altering the rate of transcription of specific genes. The steroid hormone receptors belong to a super-family of so-called nuclear receptors that also includes the receptors for [...]