Abstract
N-acetyltaurine (NAT) that is a novel metabolite of taurine conjugated with acetate has been reported to increase in urine during alcohol catabolism. Because acetate production would be also increased by endurance exercise, NAT might be produced during the exercise. This study aimed to determine the NAT in serum and urine after endurance exercises. Serum and urinary levels of taurine and NAT after a transient exercise or full-marathon race were measured by HPLC-MS/MS system. In addition, the synthesis of NAT was evaluated in cultured skeletal muscle cell (C2C12 myotube) exposed to taurine and acetate. Serum taurine and NAT concentrations were significantly increased immediately after full-marathon compared to those before the marathon, and recovered to the normal levels after a day. Urinary excretions of taurine and NAT were markedly higher in 24-h period after the transient exercise compared to those before the exercise. In culture cell, the excretion of NAT to medium was significantly increased following the exposing to both taurine and acetate. The present study could confirm the significant increase of NAT in serum and urine after endurance exercise, and it is suggesting that taurine may conjugate with excess acetyl-group in the skeletal muscles during exercise.
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Abbreviations
- NAT:
-
N-acetyltaurine
- ACS2:
-
Acetyl-CoA synthase 2
- GM:
-
Growth medium
- DM:
-
Differentiation medium
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This work was supported by Kakenhi grants Number (25750334).
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Miyazaki, T. et al. (2015). Increased N-Acetyltaurine in Serum and Urine After Endurance Exercise in Human. In: Marcinkiewicz, J., Schaffer, S. (eds) Taurine 9. Advances in Experimental Medicine and Biology, vol 803. Springer, Cham. https://doi.org/10.1007/978-3-319-15126-7_5
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DOI: https://doi.org/10.1007/978-3-319-15126-7_5
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