I normally drink 100-150mg/day, but I had to cut that back to 50-60mg and only in the morning. It seems to have passed, so I'm back on my drip.
This doesn't mean that AMPA receptors are the root cause of post-COVD brain fog, nor does it necessarily mean that drugs modulating AMPA receptors could reverse it. It only shows that this is one of the changes observed in patients reporting post-COVID brain fog. It could be a side effect of some other change or it could be part of a long cascade of changes.
It also needs to be replicated further. I've read at least at dozen headlines claiming to have found the underlying cause of COVID brain fog in the past year and all of them pointed to different biomarkers.
Consider this another piece of the puzzle, not a discovery of the underlying mechanism.
It doesn’t say root cause, or drug target. It doesn’t say reverse or cure. It quite specifically doesn’t say “the basis”. The word basis doesn’t have to refer to one root cause. It could be something foundational, but there can be many elements of a foundation. It certainly isn’t the entire structure.
I’d argue it’s quite tame as academic press releases go.
The headline quite specifically does say: "Uncovering the Molecular Basis of Long COVID Brain Fog"
The article also implies that AMPA drugs could address COVID brain fog:
> For example, drugs that suppress AMPAR activity could be a viable approach to mitigate brain fog.
This was one of the points I was trying to counter.
It also claims to have "resolved key uncertainties":
> In summary, the team’s findings resolve key uncertainties about the biological basis of Long COVID brain fog
Which is obviously not true. This is only one biomarker, not the resolution to a key uncertainty.
I disagree that I'm reading too much into it. These are direct quotes from the article I was responding to.
On a long covid news article? What are the chances!
As for tolerance, I haven't noticed the brain fog come back since I started, and I've been on this for 6 or 8 months so far.
I vape like a fiend and I'm probably never going to stop
https://pmc.ncbi.nlm.nih.gov/articles/PMC11336094/
I would be curious if these markers could result from the same problems, or might indicate a complete separate root cause.
marstall•4h ago
Aurornis•4h ago
The study only looked at one marker. It doesn't confirm that increased AMPA receptor density is the cause of decreased cognition. It only suggests that decreased cognition is correlated with increased AMPA receptor density.
There are many processes in the body where reduced activation of a receptor system results in an increased number of those receptors. So don't conclude that this is the reason why patients have brain fog. I would guess it's just more of a symptom than a cause until there's more research
lenerdenator•3h ago
Just a shot in the dark here, I'm just some guy on the internet, not a microbiologist or doctor.
dekhn•2h ago