What physiological outcome results from Diazepam binding to the GABA-A receptor complex?

Answer

Increased frequency of chloride channel opening leading to neuronal hyperpolarization.

When diazepam binds to its target, the GABA-A receptor complex, it functions to potentiate the effects of GABA. This potentiation manifests as a direct physical change in the receptor structure, causing an increase in how frequently the associated chloride channels open. When these channels open, negatively charged chloride ions flow into the neuron. This influx shifts the neuron's electrical potential towards a more negative state, a process known as hyperpolarization. This state makes the neuron less likely to fire an action potential, resulting in generalized central nervous system depression, which underlies diazepam's sedative and muscle-relaxing effects.

What physiological outcome results from Diazepam binding to the GABA-A receptor complex?
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