FAM171B as a Novel Biomarker Mediates Tissue Immune Microenvironment in Pulmonary Arterial Hypertension

Figure 2

Principal component analysis (PCA) analysis of gene expression datasets. The scatter plots’ points depict samples based on the top two principal components (PC1 and PC2) of gene expression profiles without and with batch effect removal. (a) PCA cluster plot of GSE113439 and GSE117261 before sample correction and batch effect removal. (b) PCA cluster plot of GSE113439 and GSE117261 after sample correction and batch effect removal. The colors denote samples from two distinct datasets, respectively. Each dot represents a sample; green represents a sample from GSE113439; purple represents a sample from GSE117261.

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