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Re: Another semi failed trial

Posted by SLS on September 10, 2010, at 8:03:54

In reply to Re: Another semi failed trial » SLS, posted by linkadge on September 10, 2010, at 7:52:20

> > What would be the effect of the partial 5-HT1a autoreceptor (somatodendritic?) agonism Abilify exhibits?

> I'm not sure. Does it have any post synaptic efficacy at 5-ht1a?

From what I've read, it does. However, I don't know what the net effect on PFC activity would be.

> The acute effects of agonizing 5-ht1a autoreceptors would be to decrease overall serotoninergic firing. This might be expected to increase dopamine release in certain brain regions which are under inhibitory control by serotonin.

Okay. I understand.

> OHOT, chronic administration might desensitize the autoreceptors, thus increasing serotonergic functioning and producing the reverse action.
>
> It really depends on the brain region and the serotonin receptor involved. For instance, in the frontal cortex, post synaptic 5-ht1a agonism increases dopamine release, wheras 5-ht2c agonism decreases it.

Interesting.

Thanks for replying.


- Scott


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poster:SLS thread:961768
URL: http://www.dr-bob.org/babble/20100908/msgs/961906.html