lncRNA-MEG affects the expression level of PDCD4 by inhibiting miR-21-5p in OGD Cell Model. The expression levels of lncRNA-MEG (A), miR-21-5p (B), and PDCD4 (C) in control group, OGD model group, and OGD model injection with shRNA-lncRNA-MEG lentiviral group were analyzed by qPCR in the OGD cell model. (D) The indicated protein expression levels were measured with western Blot in control group, OGD model group, and OGD model injection shRNA-lncRNA-MEG lentivirus group. Each data represented the mean ± SD of three independent experiments and were analyzed with T-test. *P < 0.05, **P < 0.01, ***P < 0.001.