Figure 4. Expression and diagnostic significance of 9 basement membrane related genes in RA. (A–I) DDR2, LAMA3, MMP14, NID1 and THBS1 expression was distinctly downregulated in RA samples; LOXL1, EGFL6, FGF9 and NID2 expression was distinctly upregulated in RA samples. (J–R) ROC assays for 9 basement membrane related genes.