Fig. 4: Individual plasma concentration of the detected amino acids.
From: Plasma methionine metabolic profile is associated with longevity in mammals
a Non-polar amino acids. b Polar uncharged amino acids. c Positively charged amino acids. d Negatively charged amino acids. Pearson correlation between plasma metabolites and animal longevity was performed A–D. Minimum signification level was set at p < 0.05. All metabolites were log-transformed in order to accomplish the assumptions of normality. Data values are obtained from four (mice and cows), five (rats, rabbits, guinea pigs, sheep, dogs, pigs, cats and horses) or six (humans) specimens.
