Effects of metformin on arachidonic acid profile in myocardial phospholipids, diacylglycerols and cholestryl esters (A), fatty acid profile in myocardial phospholipids (B) and cholesteryl esters (C) in Wistar control (W) and hereditary hypertriglyceridemic (HHTg) rats; n = 8 for each group. Significance was determined using two-way ANOVA and Fisher’s LSD post-hoc test (* denotes p < 0.05; *** denotes p < 0.001). PA—palmitic acid, POA—palmitoleic acid, SA—stearic acid, OA—oleic acid, VA—vaccenic acid, LA—linoleic acid, AA—arachidonic acid, EPA—eicosapentaenoic acid, DHA—docosahexaenoic acid.