A recent study by Extermann et al. found that there were no differences in peripheral biomarkers of aging (IL-6, D-dimer, IGF-1, and TNF- α) between patients (N = 27) with breast cancer at 1–2 years after completion of adjuvant chemotherapy and non-chemotherapy controls (N = 29) [44]. The gene discussed is IL6; the disease is breast carcinoma.