Adenosine can act like a neurotransmitter

Adenosine can act like a neurotransmitter - Answer: since...

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Adenosine can act like a neurotransmitter; it binds to adenosine A1 receptors. Activation of A1 receptors leads to a decrease in cAMP levels and a decrease in neuronal activity. Caffeine also binds to adenosine A1 receptors, but caffeine is an A1 receptor antagonist. How does caffeine stimulate neuronal activity?
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Unformatted text preview: Answer: since caffeine is an A1 receptor antagonist, it blocks the binding of adenosine to A1 receptors and so blocks the normal inhibitory action of adenosine The result of signaling via G protein-coupled receptors is almost always A change in...
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