No - but I'm keeping my eye out. The only comment that would seem to relate was Dr Rhona Maclean (NHS Haemostasis and Thrombosis Consultant) who basically said to "watch this space", which we noted here.
I think Asad is pushing hard, for obvious reasons, but "conclusively demonstrated" is just too strong currently. At this time, my suspicion is they'll replicate amyloid "micro-clot" findings in vitro in the two UK centres and people will be satisfied it's a real finding. They may get evidence supporting their presence in vivo. There was a hint of this from Martin Krater a few weeks back, looking with high throughput single-cell mechanophenotyping / microfluidics.
Then you have the multiple postmortem findings and the HpXe-MRI lung studies directly and indirectly showing microthrombi, so the evidence is building. The Pretorius hypothesis places circulating microclots centrally in the cause of long Covid. I think that's unlikely. No question hypercoagulability is a big feature in acute* and chronic Covid. Perhaps it's a double whammy on top of immunometabolic derangement: something specific to this virus, and maybe the spike protein in particular. But I think there's more to the stories of EBV-related immune derangement, autophagy dysfunction, nitric oxide and all the other things we're tracking. Anecdotally too many LC people seemed to have a significant EBV history as youngsters, myself included (though I may be biased to taking note of this).
* Just today I heard of a distant relative (late 40s) now intubated after a catastrophic stroke. No pre-existing health concerns; but "incidentally" found to be Covid-positive.
I think Asad is pushing hard, for obvious reasons, but "conclusively demonstrated" is just too strong currently. At this time, my suspicion is they'll replicate amyloid "micro-clot" findings in vitro in the two UK centres and people will be satisfied it's a real finding. They may get evidence supporting their presence in vivo. There was a hint of this from Martin Krater a few weeks back, looking with high throughput single-cell mechanophenotyping / microfluidics.
Then you have the multiple postmortem findings and the HpXe-MRI lung studies directly and indirectly showing microthrombi, so the evidence is building. The Pretorius hypothesis places circulating microclots centrally in the cause of long Covid. I think that's unlikely. No question hypercoagulability is a big feature in acute* and chronic Covid. Perhaps it's a double whammy on top of immunometabolic derangement: something specific to this virus, and maybe the spike protein in particular. But I think there's more to the stories of EBV-related immune derangement, autophagy dysfunction, nitric oxide and all the other things we're tracking. Anecdotally too many LC people seemed to have a significant EBV history as youngsters, myself included (though I may be biased to taking note of this).
* Just today I heard of a distant relative (late 40s) now intubated after a catastrophic stroke. No pre-existing health concerns; but "incidentally" found to be Covid-positive.