Regulation of Circulatory Muscle-specific MicroRNA during 8 km Run

• Published in: International journal of sports medicine 2020-08, Vol.41 (9), p.582-588
• Main Authors: Yin, Xin, Cui, Shufang, Li, Xin, Li, Wei, Lu, Qiu ju, Jiang, Xiao hong, Wang, Hui, Chen, Xi, Ma, Ji zheng
• Format: Article
• Language: English
• Subjects: Biomarkers; MicroRNAs; Physiology; Physiology & Biochemistry
• ISSN: 0172-4622; 1439-3964
• DOI: 10.1055/a-1145-3595

Abstract Acute prolonged endurance running has been shown to alter muscle-specific circulating microRNA (miRNA) levels. Here, eighteen participants completed an 8 km run. We assessed the levels of hsa-miR-1–3p, -133a-3p, -133b, and -206 and their correlation with conventional biomarkers following exercise. Compared to before exercise (Pre), 8 km run significantly increased the lactate level immediately after exercise (0 h). Myoglobin (Mb) level increased at 0 h while creatine kinase (CK) level increased 24 h after exercise (24 h). The levels of creatine kinase MB isoenzyme (CK-MB) and cardiac troponin I (cTnI) were all elevated at 24 h and within the normal physiological range; The levels of hsa-miR-1–3p, -133a-3p, -133b significantly increased at 0 h but only hsa-miR-133a-3p still elevated at 24 h. Only hsa-miR-206 level decreased at 24 h; Additionally, the changes of hsa-miR-1–3p and hsa-miR-133a-3p were correlated with Mb at 24 h. These findings suggest that muscle-specific miRNA elevation in plasma is likely physiological and that these miRNA may be used as potential biomarkers for load monitoring in individuals.