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  • Title: Protective effects of CG-4203, a novel stable prostacyclin analog, in traumatic shock.
    Author: Bitterman H, Stahl GL, Lefer AM.
    Journal: Prostaglandins; 1988 Jan; 35(1):41-50. PubMed ID: 3287456.
    Abstract:
    We studied the effects of CG-4203, a novel stable prostacyclin analog, in a severe model of traumatic shock in rats. Traumatic shock was produced by Noble Collip drum trauma and was characterized by marked hypotension, a 4- to 5-fold increase in plasma cathepsin D and myocardial depressant factor activities, and survival time of 95 +/- 15 minutes. Treatment with CG-4203 (100 ng/kg/min) significantly prolonged survival time to 194 +/- 20 min (p less than 0.002). Traumatized rats treated with CG-4203 exhibited significantly lower plasma activities of the lysosomal hydrolase cathepsin D (p less than 0.05). Furthermore, the plasma accumulation of myocardial depressant factor (MDF) activity was also significantly blunted in traumatized CG-4203 treated rats when compared with traumatized rats receiving only the vehicle (p less than 0.01). Our results suggest that a combination of membrane stabilizing and anti-proteolytic effects and inhibition of platelet aggregation may mediate the protective effects of CG-4203 in traumatic shock.
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