Jiang et al. injected serum-derived exosomes into PD mice, and the loss of function of miR-137 antagomir demonstrated that miR-137 down-regulation could minimize PD’s oxidative stress damage by up-regulating OXR1, reduce pole-climbing time, and increasing traction test score (Jiang et al., 2019). The gene discussed is OXR1; the disease is Parkinson disease.