A study in humans demonstrated that the miR-215-5p was significantly downregulated in plasma at 48 hours post-injury in spinal cord injury patients compared to healthy controls, as validated by droplet digital PCR [Hörauf et al. DOI:10.3390/ijms262210954]. A study in humans demonstrated that the miR-215-5p showed no significant difference in expression between obstructive sleep apnea syndrome patients and healthy controls [Mo et al. DOI:10.2147/NSS.S382765].