After reading this article you will learn about the role and functions of second messengers. Many hormones, neurotransmitters, autacoids and drugs act on specific membrane receptors, the immediate consequence of which is activation of a cytoplasmic component of the receptor, which may be an enzyme such as adenylate cyclase, guanylate cyclase or activation of a […]
Role and Functions of Second Messengers | Pharmacodynamics
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Classification of Receptors: 4 Types | Pharmacodynamics
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This article throws light upon the four main types of receptors. The types are: 1. Receptors for Fast Neurotransmitters 2. Receptor for many Hormones and Slow Transmitters 3. Receptors for Insulin and Various Growth-Factors 4. Steroid Receptors. Type # 1. Receptors for Fast Neurotransmitters: These are coupled directly to an ion- channel. These receptors are […]
Terms Related to Agonist-Antagonist Interactions | Drugs
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This article throws light upon the four main terms related to agonist-antagonist interactions. They are: 1. PKX 2. PAX 3. PD’x 4. PDX. Term # 1. PKX: This is an expression for affinity and is defined as negative logarithm of the molar concentration of a drug that elicits an effect representing x% of the maximal […]
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