Fig. 2
From: Metabolism-related proteins as biomarkers for predicting prognosis in polycystic ovary syndrome

Differential Expression Analysis of Proteomic Data. (A) Boxplot of proteomic data before normalization. The black boxes represent the control group, and the red boxes represent the PCOS group. (B) Boxplot of proteomic data after normalization, which showing more uniform distribution. (C) Principal Component Analysis (PCA) plot of the proteomic data, demonstrating the separation between the control group (blue) and the PCOS group (red). (D) Heatmap of DEPs between the control and PCOS groups. The red and blue colors indicate higher and lower expression levels, respectively. (E) Volcano plot of DEPs, with the x-axis representing the log2 fold change and the y-axis representing the -log10 p-value. Red and blue dots represent significantly upregulated and downregulated proteins, respectively, while green dots highlight the most significantly different proteins