A review of human studies identified 197 miRNAs associated with wound healing, burn wound healing, and scarring, with specific expression patterns in human skin tissue and cells post-burn and in hypertrophic scars [Siu et al. DOI:10.1111/wrr.13100]. A study in mice demonstrated that the miR-636 is downregulated in patients with a major depressive episode [Miguel et al. DOI:10.1089/Ars.2017.7175].