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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Effects of antiarrhythmic agents classified as class III group on ischaemia-induced myocardial damage in canine hearts.

1. The cardioprotective effects of antiarrhythmic agents classified as class III, amiodarone, sotalol and E-4031, were investigated in anaesthetized dogs. 2. The left anterior descending coronary artery was occluded for 2 h. 3. Heart mitochondria were prepared from both the ischaemic and non-ischaemic areas, and their function was estimated polarographically. 4. Activities of the lysosomal enzymes, N-acetyl-beta-glucosaminidase and beta-glucuronidase, were measured in each fraction. 5. Two hour occlusion induced ventricular arrhythmias, and amiodarone, sotalol and E-4031 greatly suppressed the development of arrhythmias. 6. Amiodarone, sotalol and E-4031 significantly protected mitochondria against ischaemia, and prevented ischaemia-induced leakage of lysosomal enzymes. 7. Antiarrhythmic agents classified as class III show cardioprotective effects, which might participate in their antiarrhythmic effect.[1]

References

  1. Effects of antiarrhythmic agents classified as class III group on ischaemia-induced myocardial damage in canine hearts. Sano, T., Sugiyama, S., Taki, K., Hanaki, Y., Shimada, Y., Ozawa, T. Br. J. Pharmacol. (1990) [Pubmed]
 
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