Glutamate: Difference between revisions
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*'''Positive Allosteric Modulators''' | *'''Positive Allosteric Modulators''' | ||
A positive allosteric modulator is a substance which indirectly influences the effects of an agonist at a receptor, by binding to a site distinct from that of the agonist binding site. Usually they induce a structural change within the receptor structure. | A positive allosteric modulator is a substance which indirectly influences the effects of an agonist at a receptor, by binding to a site distinct from that of the agonist binding site. Usually they induce a structural change within the receptor structure. | ||
Many nootropics and ampakine (a class of compounds known to enhance attention span and alertness) drugs are positive modulators of the AMPA glutamate receptor. These include piracetam, aniracetam and unifiram. | Many nootropics and ampakine (a class of compounds known to enhance attention span and alertness) drugs are positive modulators of the AMPA glutamate receptor. These include [[piracetam]], [[aniracetam]] and unifiram. | ||
*'''Antagonists''' | *'''Antagonists''' | ||
A glutamate receptor [[antagonist]] is a type of receptor drug that inhibits action at glutamate receptors. [[Alcohol|Ethanol]] acts as an antagonist against the NMDA, AMPA and Kainate glutamate receptors, along with several antiepileptic drugs. Many [[dissociatives|dissociative]] drugs are antagonists against the NMDA glutamate receptor, including [[ketamine]], [[MXE]], [[PCP]] and [[DXM]]. [[Tramadol]] and [[ibogaine]] are dual antagonists against the NMDA glutamate receptor and opioid receptors. One atypical antagonist is [[Theanine]], which is not known to produce dissociative anesthesia at any dose, but has other psychoactive properties. | A glutamate receptor [[antagonist]] is a type of receptor drug that inhibits action at glutamate receptors. [[Alcohol|Ethanol]] acts as an antagonist against the NMDA, AMPA and Kainate glutamate receptors, along with several antiepileptic drugs. Many [[dissociatives|dissociative]] drugs are antagonists against the NMDA glutamate receptor, including [[ketamine]], [[MXE]], [[PCP]] and [[DXM]]. [[Tramadol]] and [[ibogaine]] are dual antagonists against the NMDA glutamate receptor and opioid receptors. One atypical antagonist is [[Theanine]], which is not known to produce dissociative anesthesia at any dose, but has other psychoactive properties. |