qtc

Rosuvastatin calcium (ZD4522) 是肝羟甲基戊二酰辅酶 A 还原酶的选择性和竞争性抑制剂，具有抗血脂活性。它降低成熟 hERG 的表达以及热休克蛋白 70 与 hERG 蛋白的相互作用，还降低低密度脂蛋白胆固醇、甘油三酯和 C-反应蛋白水平。它阻断人类醚-a-go-go 相关基因电流，延迟心脏复极化，来延长动作电位持续时间和校正 QT 间期间隔。

Zn(BQTC)为高效线粒体DNA（mtDNA）及核DNA（nDNA）抑制剂，能对二者造成严重损伤，进而影响线粒体与核功能。该化合物激活DNA损伤诱导的细胞凋亡信号通路并对A549R细胞显示出选择性抗增殖效果，适用于抗癌研究领域。

SKF-96365 hydrochloride (SKF96365) 是store-operated Ca2+entry 抑制剂，也是TRP channel 阻滞剂。它显著抑制豚鼠离体心脏 hERG、hKCNQ1 hKCNE1、hKir2.1 和 hKv4.3 电流，延长QTc 间期。它通过诱导结直肠癌细胞的细胞周期阻滞和凋亡起抗肿瘤作用。

Rosuvastatin (ZD4522) 是一种 HMG-CoA 还原酶 (HMGCR) 的抑制剂 (IC50=11 nM)，具有选择性和竞争性。Rosuvastatin 具有降血脂作用和抗动脉粥样硬化作用。

Eleclazine, also known as GS-6615, is a selective late sodium current inhibitor. Eleclazine is potentially useful for treatment of coronary vasodilators, antiarrhythmics and vasodilators. Eleclazin showed a shortening of the QTc interval (the time interval between the start of the Q-wave and end of the T-wave in the heart’s electrical cycle) in patients with long QT-3 (LQT3) syndrome. LQT3 is a genetic disorder that prolongs the heart’s QTc interval and can cause life-threatening cardiac arrhythmias (abnormal heartbeats).

BeKm-1 TFA is a potent, selective blocker of the KV11.1 (hERG) channel, demonstrating specificity for KV11.1 over 14 other potassium channels. This compound dose-dependently prolongs the QTc interval in isolated rabbit hearts, affirming its role as a selective inhibitor.

Potent and selective KV11.1 (hERG) channel blocker. Selective for KV11.1 over a panel of 14 other potassium channels. Dose-dependently prolongs QTc interval in isolated rabbit heart.