Why aren't drugs implementing activation of cholinergic anti-inflammatory pathway (n-cholinomimetics, α7nAChR agonists, etc.) used in treatment of COVID-19?
It was found that activation of cholinergic anti-inflammatory pathway reduces the concentration of pro-inflammatory cytokines in the blood and organs during sepsis, and various infectious diseases, while significantly reducing mortality.
https://en.wikipedia.org/wiki/Cholinergic_anti-inflammatory_pathway#:~:text=The%20cholinergic%20anti%2Dinflammatory%20pathway,and%20regulates%20the%20inflammatory%20response.
(see^ https://www.researchgate.net/profile/PF_Zabrodskii/research
see^ https://pubmed.ncbi.nlm.nih.gov/?term=Zabrodskii+P.F. )
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