To further explore the expression of MAPK and NF-kappa B signaling pathway-related genes, the peripheral blood from clinical samples was collected, and total RNA was extracted to study the expression levels of c-FLIP, MIP1β, p38, and TRAF6 in the plasma of the control group (Control) and the osteoporosis group (OP) (Figures 6K–N). Here, CCL4 is linked to osteoporosis.