Cotcha Yankinov
Bluelight Crew
- Joined
- Jul 21, 2015
- Messages
- 2,952
Basically AMPA provides a lot of input to NMDAr's. It takes a lot of stimulation to activate NMDAr's and ultimately NMDA is what is mediating a lot of the cognitive effects from ampakines. Generally there are a lot of studies that look for antagonism of something to be significantly reducing the effects of a particular drug to reason that the drugs effects are to whatever degree mediated through what they are antagonizing, and my question for a long time was that how do they know it's not related (after all you would expect NMDA antagonism to affect cognition regardless of whether racetams were working via NMDA) but ultimately it boils down to the authors of the study feeling that the antagonism's reduction of activity would not have been as significantly with placebo + antagonism.
I would actually expect people who take NMDA antagonists to be at lesser risk of pain amplification syndromes unless there is significant upregulation of NMDA with NMDA antagonism, NMDA upregulation is seen with NMDA potentiation if I recall correctly, but NMDA upregulation is definitely seen with ampakines.
Whether or not the upregulation of NMDAr's seen in the periphery with pain amplification syndromes is far far beyond what you would ever see with ampakines or NMDA antagonists is beyond me. I know the NMDA upregulation seen with ampakines is about 20% after a couple weeks I think...
I would actually expect people who take NMDA antagonists to be at lesser risk of pain amplification syndromes unless there is significant upregulation of NMDA with NMDA antagonism, NMDA upregulation is seen with NMDA potentiation if I recall correctly, but NMDA upregulation is definitely seen with ampakines.
Whether or not the upregulation of NMDAr's seen in the periphery with pain amplification syndromes is far far beyond what you would ever see with ampakines or NMDA antagonists is beyond me. I know the NMDA upregulation seen with ampakines is about 20% after a couple weeks I think...