Fig. 9

Expression analysis of the hub gene. A. Expression pattern of hub gene between HFpEF group and control group in training set GSE194151.Expression levels of hub gene in validation sets GSE236584 (B) and GSE180065 (C). D. PCR results of the expression level of hub genes. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001 vs. Control.