RE: The Lancet31 Mar 2021 11:53
Thanks Ferrari for that post.
I may be losing my mind.
I thought that a low level of INFB1 in the body would give a worse outcome but this Lancet paper Ferrari referenced seems to say the opposite. Can someone please explain? Thanks - Spinnaker
'Moreover, IFNB1 expression also predicted worse clinical outcome measured by maximal WHO ordinal scale (Mann-Whitney, p=0·027) or maximal oxygen support (Mann-Whitney, p=0·0068) and a composite score (ie, discharge to rehabilitation centre, hospital stay >60 days, or death; Mann-Whitney p=0·040). Notably, 45% (5 of 11) of patients who were positive for IFNB1 required extracorporeal membrane oxygenation versus 9% (4 of 46) of patients who were negative for IFNB1. Total days on extracorporeal membrane oxygenation was also higher in patients who were positive for IFNB1 (median 24·0 days vs 10·5 days; Mann-Whitney p=0·016). IFNB1 expression also predicted multiorgan involvement, another hallmark of critical COVID-19 (median Sequential Organ Failure Assessment score 7 for patients who were negative for IFNB1 vs 12 for patients who were positive for IFNB1; Mann-Whitney p=0·0072). Surprisingly, IFNB1 expression was not correlated to viral load (figure D), in contrast to IFNA2 (r=0·45; p=0·0007) and IFNL2 and IFNL3 (r=0·47; p=0·0003).
Figure thumbnail gr1
FigureUpper respiratory tract IFN transcript expression and length of ICU stay for critical patients with COVID-19'