Fig. 2
From: Ferroptosis emerges as the predominant form of regulated cell death in goat sperm cryopreservation

Non-targeted metabolomics analysis of fresh and frozen-thawed goat sperm. A Classification of secondary metabolites according to the Human Metabolome Database (HMDB) Super Class. B Heatmap depicting the expression profiles of secondary metabolites in fresh and frozen-thawed sperm. C Score plot of Partial Least Squares Discriminant Analysis (PLS-DA) differentiating between fresh and frozen-thawed sperm based on metabolomic profiles. D Permutation test plot assessing the reliability of the PLS-DA model. E Scatter plot ranking significantly different metabolites between fresh and frozen-thawed sperm, based on fold-change values