Rapid cooling-induced contractures in rat skinned skeletal muscle fibres originate from sarcoplasmic reticulum Ca2+ release through ryanodine and inositol trisphosphate receptors
Rapid cooling-induced contractures in rat skinned skeletal muscle fibres originate from sarcoplasmic reticulum Ca2+ release through ryanodine and inositol trisphosphate receptors
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快速冷却引起的大鼠皮肤骨骼肌纤维挛缩源于肌浆网 Ca2 通过兰尼碱和肌醇三磷酸受体释放
DOI:
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
C. Léoty
中科院分区:
文献类型:
--
作者:
S. Talon;C. Huchet;C. Léoty
Abstract. Previous reports have shown that cooling striated muscles induces contractile responses that are related to Ca2+ release from the sarcoplasmic reticulum. However, the effect of cooling has generally been studied in the presence of pharmacological agents that potentiate rapid cooling-induced contractures. The present study shows that in saponin-skinned rat skeletal muscle preparations, a drop in temperature from 22°C to 2°C per se induces a contracture which relaxes on return to 22°C. In fast-twitch fibres, rapid cooling-induced contractures are fully blocked by ryanodine, an inhibitor of ryanodine receptors. By contrast, in slow-twitch fibres, ryanodine partially inhibits the rapid cooling-induced contractile response, leaving a residual tension that dissipates after application of inositol 1,4,5-trisphosphate (InsP3). At low concentrations, heparin, an inhibitor of InsP3 receptors, decreases rapid cooling-induced contractures in both types of muscle. The present results suggest that in skeletal muscle, rapid cooling-induced contractures are due to both ryanodine-sensitive and InsP3-sensitive Ca2+ release from the sarcoplasmic reticulum.
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DOI:
--
发表时间:
1986-05
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
G. Meissner
通讯作者:
G. Meissner
DOI:
10.1073/pnas.82.15.5231
发表时间:
1985-08
影响因子:
11.1
作者:
A. Somlyo;M. Bond;A. Somlyo;A. Scarpa
通讯作者:
A. Somlyo;M. Bond;A. Somlyo;A. Scarpa
DOI:
--
发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Kim,DH;Ohnishi,ST;Ikemoto,N
通讯作者:
Ikemoto,N
影响因子:
2.7
作者:
Rosemblit, N;Moschella, MC;Marks, AR
通讯作者:
Marks, AR
DOI:
10.1016/s0006-291x(88)81141-0
发表时间:
1988
影响因子:
3.1
作者:
Kobayashi,S;Somlyo,AV;Somlyo,AP
通讯作者:
Somlyo,AP