Taurine transport in chronically stimulated fast- and slow-twitch muscles of the rat.
Indirect stimulation via the sciatic nerve, 10 or 100 Hz stimulus trains of 1 sec duration, applied every 3 sec, 8 hr/day for 1-4 weeks increased taurine concentration of the extensor digitorum longus (EDL, fast-twitch) muscle of the rat. The uptake of [3H]-taurine into the EDL and tibialis anterior (TA, fast-twitch) muscle was also increased by the stimulation. Concentration and uptake of taurine in the soleus muscle (SL, slow-twitch) did not change by chronic 10 Hz stimulation. Taurine concentration in the SL muscle was significantly reduced by chronic 100 Hz stimulation. This study shows that chronic nerve stimulation increases the uptake of taurine in the fast-twitch muscles, but not in the slow-twitch muscle.
D000818:Animals; D001692:Biological Transport; D004558:Electric Stimulation; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009132:Muscles / Q000378:metabolism* / Q000502:physiology; D051381:Rats; D011919:Rats, Inbred Strains; D012584:Sciatic Nerve / Q000502:physiology; D013654:Taurine / Q000378:metabolism*
D013654:Taurine