qPCR quantification for miR-34a revealed, as in myofibroblasts from lungs of humans with IPF vs. normal lungs (Figure 1), that control saline-treated mice had relatively high miR-34a levels, which decreased from 1.45 ± 0.8 SD to only 0.3 ± 0.1 SD (n = 6), on day 14 (Figure 4A, BLM d-14 vs. Ctrl). Here, BLM is linked to idiopathic pulmonary fibrosis.