SLC2A1 and rheumatoid arthritis: Similarly, Glut1 is more highly expressed in the lining layer (0.87 ± 0.31 OA vs 2.12 ± 0.28 RA), sublining layer (0.37 ± 0.14 OA vs 1.43 ± 0.25 RA) (both p < 0.05) and vasculature (0.5 ± 0.26 OA vs 2.26 ± 0.29 RA) (p < 0.01).