Drugs altering postsynaptic events
One way drugs can change synaptic transmission is by modifying the activity of the postsynaptic cell. There are two major classes of postsynaptic drug actions:
- direct effect on transmitter receptors
- effects on cellular processes within postsynaptic cell
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Drugs altering presynaptic events
Drugs altering postsynaptic events
A new medication is found to alleviate symptoms of a particular disorder by increasing the amount of a specific neurotransmitter available in the synaptic cleft, thereby prolonging its effect. Which of the following is the most plausible mechanism of action for this drug?
A new medication is observed to significantly amplify the signal between two communicating nerve cells, resulting in a stronger and more prolonged response in the receiving cell. Based on the general principles of how substances can affect this communication process, which of the following potential actions is LEAST likely to be the mechanism of this medication?