what are the receptors, neurological actions of NE

Posted by iforgotmypassword on December 5, 2005, at 9:38:53

i think i know of these:
alpha-1 adrenoreceptor
alpha-2 adrenoreceptor (2A and 2B?)
beta-1 adrenoreceptor
beta-2 adrenoreceptor
D4 receptor
now what i'm wondering is:
1. Are there other receptors?
2. Are there other agonizing chemicals that act at certain sorts of NE receptors? Are they as potent as agonists? Are there any endogeneous antagonists?
3. What are the specific actions of each? And where in the brain do they reside? How do they relate to the function of other receptors?
4. If you block a beta adrenoreceptor, does this lead to stimulation of the alpha adrenoreceptors?
5. Is beta receptor stimulation the sole basis for how NE increase can cause hypertensive effects?
6. Which NE actions are specifically not known for AD-like effects but may help cognition?
7. Is a real function of NE to single out acetylcholine being a catecholamine?
Sorry, this is lots, but any input would be interesting...

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what are the receptors, neurological actions of NE iforgotmypassword 12/5/05
Re: what are the receptors, neurological actions of NE blueberry 12/6/05
Re: what are the receptors, neurological actions of NE » iforgotmypassword Larry Hoover 12/6/05
Re: what are the receptors, neurological actions o » iforgotmypassword chemist 12/6/05
Re: what are the receptors, neurological actions o » chemist iforgotmypassword 12/7/05
Re: what are the receptors, neurological actions o » iforgotmypassword chemist 12/8/05
thanx. :) (nm) » chemist iforgotmypassword 12/9/05

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URL: http://www.dr-bob.org/babble/20051203/msgs/585697.html