Research Paper Volume 12, Issue 13 pp 12517—12533
Untargeted metabolomics for uncovering biological markers of human skeletal muscle ageing
Figure 2. Representative boxplots of metabolite abundance for metabolites A) 2423 and B) 2104 which were selected via RF to be predictive of muscle age and were matched to a number of steroid and androgen metabolites following annotation using the PIUMet algorithm. Relative abundance for both metabolite features shows decline with age, a well-established relationship observed in ageing muscle for steroid and androgen metabolites.