Questions and Answers
What is the main focus of pharmacodynamics?
Studying the actions of a drug on the body and the influence of drug concentrations on the degree of the response
How do most drugs exert their effects on the body?
By interacting with receptors on the cell surface or within the cell
What process is initiated by the drug-receptor complex?
Signal transduction
What do drugs act as in the context of signal transduction?
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What is the role of receptors in signal transduction?
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Study Notes
Pharmacodynamics
- The main focus of pharmacodynamics is the study of the effects of drugs on the body.
Drug Effects on the Body
- Most drugs exert their effects on the body by binding to specific receptors.
- This binding causes a conformational change in the receptor, triggering a response.
Drug-Receptor Complex
- The formation of a drug-receptor complex initiates a signaling cascade, leading to a physiological response.
Signal Transduction
- Drugs act as ligands, binding to receptors to initiate signal transduction pathways.
- Receptors play a crucial role in signal transduction, transmitting the signal from the drug-receptor complex to the intracellular environment.
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