@article{APS6354,
author = {Yong Ji and Ming Zhao and Ying Qi and Lin-Wang Dong and Li-Ling Wu and Shi-Qi Peng and Jing-Yi Su},
title = {Effects of Arg-Gly-Asp-Ser on Ca 2+ transport of myocardial sarcoplasmic reticulum in rat septic shock},
journal = {Acta Pharmacologica Sinica},
volume = {17},
number = {2},
year = {2016},
keywords = {},
abstract = {AIM:
To study the effects of Arg-Gly-Asp-Ser (RGDS), a synthetic short peptide of fibrinogen degradation, on the Ca2+ transport function of cardiac sarcoplasmic reticulum in rat septic shock.
METHODS:
RGDS 5 mumol.kg-1 was injected i.v. at 4 h and 14 h after cecal ligation and puncture (CLP) operation on rats. Highly purified membrane of sarcoplasmic reticulum (SR) was prepared from rat hearts. Assays were made of ATP-dependent Ca2+ uptake by cardiac SR and [3H] ryanodine binding to SR.
RESULTS:
The initial rate and the capacity of SR Ca2+ uptake were increased by 104% (P < 0.01) and 12% (P < 0.05), respectively, paralleled by an increase in Ca(2+)-ATPase activity and a decrease in calcium accumulation of myo- cardium of septic rats, whereas the Bmax and Kd values of Ca2+ activated [3H]ryanodine binding to SR were unaffected after RGDS administration.
CONCLUSIONS:
The results indicated that RGDS have cardioprotective effects of maintaining Ca2+ homeostasis of cardiac myocytes by enhancing SR Ca2+ uptake in rat septic shock.},
issn = {1745-7254}, url = {http://www.chinaphar.com/article/view/6354}
}