There was a negative correlation between serum 25OHD levels and MFI expression of TLR7
on B cells, T cells, and monocytes. TLR7
function, addressed by in vitro stimulation with a specific agonist, was significantly correlated with serum 25OHD levels, and this was especially a result of the results in HC older than 60 years. MFI expression of TLR5 on T cells and TLR2 on monocytes was also negatively correlated with serum 25OHD levels.