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Bull Exp Biol Med. 2013 Jun;155(2):175-8.

Effect of anorexigenic peptide obestatin on platelet aggregation and osmotic resistance of erythrocytes.

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Department of Human and Animal Physiology, Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Russia.


We studied the effects of the anorexigenic peptide obestatin on the coagulation system and blood rheology (by the parameters of platelet aggregation and osmotic resistance of erythrocytes) in vitro and in vivo. Obestatin inhibited in vitro platelet aggregation in the entire dose range and reduced osmotic resistance of erythrocytes in all doses except 300 nmol/kg (obestatin in a dose of 300 nmol/kg had no effect on this parameter). Similar to the results of in vitro experiments, intranasal, intraperitoneal, and subcutaneous administration of obestatin in a dose of 300 nmol/kg inhibited platelet aggregation and had no effect on the osmotic resistance of erythrocytes.

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