Sidorenko M V
Ukr Biokhim Zh. 1977 May-Jun;49(3):61-5.
The content of the adenylic system components (ATP, ADP, AMP+IMP), creatine phosphate and inorganic phosphorus (Pin) was determined in the frog gastrochemius muscles in vivo and in vitro at different time after one-second and four-second tetanic contractions. After a one-second contraction the content of ATP in the muscles both in vivo and in vitro increases with respect to the initial level and simultaneously the contents of creative phosphate and Pin decrease. 15 seconds after a four-second contraction the content of ATP in the both cases is below the initial level; in the isolated muscles it restores the initial level during the second minute of rest and subsequently does not change significantly. In vivo the content of ATP continues to increase, accounting for 114% of the initial level during the eighth minute of rest. This rise is accompanied by an essential utilization of Pm, the content of which during the eighth minute of rest is 79.4% relative to control. The content of ADP, AMP+IMP after a one-or four-second contraction does not change significantly.
在1秒和4秒强直收缩后的不同时间，对青蛙离体和在体的腓肠肌中腺苷酸系统成分（ATP、ADP、AMP + IMP）、磷酸肌酸和无机磷（Pin）的含量进行了测定。1秒收缩后，无论在体还是离体肌肉中，ATP含量相对于初始水平均增加，同时磷酸肌酸和Pin的含量降低。4秒收缩后15秒，两种情况下ATP含量均低于初始水平；在离体肌肉中，休息第2分钟时恢复到初始水平，随后无明显变化。在体情况下，ATP含量持续增加，休息第8分钟时占初始水平的114%。这种增加伴随着Pm的大量利用，休息第8分钟时其含量相对于对照为79.4%。1秒或4秒收缩后，ADP、AMP + IMP的含量无明显变化。
