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Year : 2021  |  Volume : 64  |  Issue : 3  |  Page : 129-134

Exercise in the cold causes greater irisin release but may not be enough for adropin

1 Faculty of Sport Sciences, Erzurum Technical University, Erzurum, Turkey
2 Department of Medical Biochemistry, Faculty of Medicine, University of Health Sciences, Erzurum, Turkey
3 Department of Biochemistry, Erzurum Regional Research and Training Hospital, Erzurum, Turkey

Correspondence Address:
Mr. Cebrail Gencoglu
Faculty of Sport Sciences, Erzurum Technical University, Erzurum
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/cjp.cjp_2_21

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When irisin and adropin were discovered, it was popularly hoped that they would become therapies for metabolic disorders that threaten global health. However, contradictory results have been reported in the subsequent period. Irisin, induced by exercise or cold exposure, is believed to be a myokine that causes the browning of adipose tissue thus increasing energy expenditure. Adropin is thought to be beneficial for health by regulating blood flow, capillary density, and playing an active role in glucose and insulin homeostasis. However, there were no experimental studies investigating the simultaneous effect of exercise and cold exposure in humans. The purpose of this study was to investigate irisin and adropin responses in young healthy individuals performing aerobic exercise in different environmental temperatures. Twenty-seven young, healthy individuals participated in this study. Participants performed 40 min of aerobic running exercise in environmental temperatures of 0°C, 12°C, and 24°C. Venous blood samples were taken pre- and post-exercise. Irisin and adropin levels were analyzed using an enzyme-linked immunosorbent assay. The principal findings showed that while serum irisin concentrations significantly increased after aerobic exercise was performed at an environmental temperature of 0°C, there was no significant difference between pre- and post-exercise recordings for physical activity performed at 12°C and 24°C. Adropin concentrations, however, remained unchanged between pre- and post-exercise at 0°C, 12°C, and 24°C. Interestingly, the exercise at 0°C caused an increase in adropin (12.5%), but this amount was not enough to be a statistically significant result. The findings of this study suggest that aerobic exercise in a cold environment causes greater irisin release. However, the combined effect of exercise and cold exposure may not be enough to statistically increase adropin level.

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