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  • Title: [The anti-arrhythmic effect of prostaglandins A1, E1, A2, E2 and F2a in the cat strophanthin arrhythmia model].
    Author: Mest HJ, Blass KE, Förster W.
    Journal: Acta Biol Med Ger; 1976; 35(1):63-7. PubMed ID: 983602.
    Abstract:
    The prostaglandins A1, E1, A2, E2 and F2a were comparatively studied for their antiarrhythmic action using the model of strophanthin arrhythmia of narcotized cats. Infusions of prostaglandins A1, E2 and F2a in doses of 1-5 mug/kg/min for 5 min improved the arrhythmias in 63%, 83% and 81% of the animals, respectively, whereas prostaglandin A2 was effective in 44%, and prostaglandin E1 in only 10% of the cats. Prostaglandins A1 and E2 transiently established a sinus rhythm in 54 and 50%, and prostaglandin F2a in 18% of the animals. The injection of 12 mu9/kg prostaglandin F2a brought about improvement of arrhythmia in 70% of the animals, producing a transient sinus rhythm in 40%. With ajmaline as the standard substance in doses of 0.3 mg/kg/min for 5 min produced an antiarrhythmic effect in 50% of the animals, while injection of 1 mg/kg was effective in 60% of the animals. Effects on the vegetative nervous system are discussed as the possible action mechanism of the prostaglandins.
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