Evaluation of serum miRNAs expression in frail and robust subjects undergoing multicomponent exercise protocol (VIVIFRAIL).

Concentration of miR-425-5p was higher as well in serum of frail subjects (5.25 × 10 4 ; 0.00–2.54 × 10 5 c/ng) compared to robust (6.33 × 10 3 ; 0.00–2.01 × 10 5 c/ng), even if this difference approached but did not reach statistical significance (Fig. 1 B).

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