In patients suffering from sarcopenia, FOXO3A mRNA level did not correlate with other analyzed genes, while in the geriatric control group, FOXO3A expression correlated with the SIRT genes (SIRT1 r=0.56, p=0.004; SIRT3 r=0.48, p = 0.015; and SIRT6 r=0.58, p=0.002). The gene discussed is SIRT3; the disease is sarcopenia.