Expression profiles of hsa-miR-21-5p and its target mRNAs. (A-H) the tested athletes. E, after 30 min of exercise; R1, after 30 min relaxation; R2, after 60 min relaxation. Bold blue, hsa-miR-21-5p; brown, TGFBR3; green, PDGFD; violet, PPM1L; light blue, RHOBTB3. Solid lines indicate validated mRNA targets and dashed line indicates predicted potential mRNA target.