LYVE1 and rheumatoid arthritis: The levels of amyloid A (AA) and lymphatic vessel endothelial cell hyaluronan receptor-1 (LYVE-1) exosomes differed between the clinical remission (CR group) and non-clinical remission groups (non-CR group) in patients with RA, and both serum/exosomal AA and LYVE-1 levels were significantly and positively correlated with C-reactive protein (CRP) levels in the non-CR group (92).