Drugs That Induce Repolarization Abnormalities Cause Bradycardia in Zebrafish

Abstract excerpt

BACKGROUND: Drug-induced QT prolongation and torsades de pointes remain significant and often unpredictable clinical problems. Current in vitro preclinical assays are limited by biological simplicity, and in vivo models suffer from expense and low throughput. METHODS AND RESULTS: During a screen for the effects of 100 small molecules on the heart rate of the zebrafish, Danio rerio, we found that drugs that cause...

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