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 [...]
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 [...]
The following points highlight the two categories of non-peptide hormones produced by posterior pituitary. The categories are: 1. Functions of Vasopressin 2. Functions of Oxytocin. Category # 1. Functions of Vasopressin: (1) Antidiuretic effect: In mammals, following a rise in plasma osmolarity, vasopressin or antidiuretic hormone (ADH) binds to V2 receptors on the basolateral plasma membrane of the distal tubules [...]