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  • Title: The somatostatin analog angiopeptin does not reduce chronic hypoxic pulmonary hypertension in rats.
    Author: Sidney EJ, Hampl V, Nelson DP, Archer SL, Foegh ML, Cathapermal SS, Weir EK.
    Journal: Proc Soc Exp Biol Med; 1996 Oct; 213(1):43-9. PubMed ID: 8820822.
    Abstract:
    Angiopeptin is an analog of somatostatin-14, which has been found to inhibit cellular proliferation in several models of systemic vascular injury. As proliferation plays a major role in pulmonary hypertension, we examined the hypothesis that angiopeptin would inhibit the development of chronic hypoxic pulmonary hypertension in the rat. Angiopeptin was infused intravenously (90-100 microg/kg/day) by minipumps in 10 rats during a 3-week exposure to hypobaric hypoxia and in six normoxic rats. Normal saline was infused in six hypoxic control rats and in seven normoxic control rats. Angiopeptin produced no significant difference in mean pulmonary arterial pressure and resistance, right ventricular weight, or medial thickness of small pulmonary vessels. Vasoconstrictor responses of isolated lungs to acute hypoxia were not affected by angiopeptin. We conclude that angiopeptin, at the high intravenous dose used, does not significantly reduce the development of chronic hypoxic pulmonary hypertension in rats.
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