A study in humans demonstrated that the mir-7-3 is significantly downregulated in plasma-derived exosomes from trauma patients compared to elective surgery controls, with this downregulation being particularly pronounced in male patients [Munley et al. DOI:10.1097/TA.0000000000004225]. A study in humans demonstrated that the mir-7-3 is differentially expressed within monozygotic twin pairs, with its expression pattern validated by qRT-PCR assays showing differential expression in 7 out of 18 twin pairs using a 2-fold change criterion and 8 out of 18 pairs using a 1.5-fold change criterion [Xiao et al. DOI:10.1016/j.fsigen.2019.05.003].