Role of dihydrotestosterone in whole-body energy utilization during acute running exercise in mice

Journal of Exercise Nutrition & Biochemistry
Nahyun KimJonghoon Park

Abstract

Dihydrotestosterone (DHT) plays an important role in various processes that utilize energy, including fat and carbohydrate oxidation. The purpose of this study was to determine the effect of inhibiting DHT formation during mid-intensity running exercise on energy expenditure and fat and carbohydrate oxidation in the whole body using a calorimetric chamber. Twelve ICR adult male mice, 9 weeks of age, were randomized into two groups: CON (n = 6, no treatment with exercise) and CONIN (n = 6, DHT inhibitor treatment with exercise, SRD5A1A2 is an enzyme involved in the metabolism of free testosterone into DHT). Inhibitor was administered to the CONIN group intraperitoneally, while the CON group was treated with vehicle (corn oil 2 mg/kg). After 3 days of administration of the inhibitor or vehicle, exercise was performed at 60-70% VO2max for 30 min on a treadmill in a calorimetric chamber. The O2 uptake, CO2 production, carbohydrate and fat oxidation, and respiratory exchange ratio (RER) during 30-min exercise were measured using a calorimeter. During a single bout of exercise, the CONIN group showed a significantly higher area under the curve (AUC) of O2 uptake and CO2 production from 20 min into exercise than the CON group (p < 0.0...Continue Reading

References

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Feb 6, 2017·Journal of Exercise Nutrition & Biochemistry·Jisu Kim, Kiwon Lim

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Citations

Oct 30, 2020·International Journal of Environmental Research and Public Health·Sunghwan KyunKiwon Lim

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