Metabonomics Analysis of Myocardial Metabolic Dysfunction in Patients with Cardiac Natriuretic Peptide Resistance

Figure 3

Plasma samples were obtained from HF patients and healthy controls to identify differential metabolomic characteristics by LC-MS. (a) Scatter plot of the PCA model for the HF group versus the healthy group. (b) Scatter plot of the OPLS-DA model for the HF group versus the healthy group. (c) Clustering heat map of the samples. The rows and columns represent metabolites and samples, respectively. LC-MS: Liquid chromatograph tandem mass spectrometry; HF: Heart failure; PCA: Principal component analysis; OPLS-DA: Orthogonal partial least-squares discriminant analysis.

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