mCRP‐CD31 binding was positively correlated with the tauopathy marker (r = +0.45, p = 0.02), with the CD68+/Iba1+ microglia numbers (r = +0.52, p = 0.02), but not with CD3+/CD8+ T lymphocytes in the brain (top row). Here, PECAM1 is linked to tauopathy.