Analysis of 1
H NMR lipid data. (A) Hierarchical cluster analysis of spectral regions (Euclidean distance) and heat-map showing fold-change relative to control group. (B) PCA, scores on axis 2. (C) PCA, loadings on axis 2. Area of point represents significance (-log(P), where P is probability from Student's t test; group 1, 480 mg/kg sample worms; group 2, 0, 10 and 40 mg/kg sample worms). Point labels in blue correspond to spectral regions shown in Additional file 7.