Abstract

Under study were effects of intravenous infusions of a new emulsion, -tocopherol, on the development of diabetic microangiopathy, platelet -tocopherol level, ADP-induced platelet aggregation level, exogenic (from 14C-arachidonic acid) thromboxan (TxA2) biosynthesis in suspension of washed platelets and of prostacyclin (Pgb) one in isolated aortic rings of rats with streptozotocin-induced diabetes. Six-week injections of -tocopherol in a dose 100 mg/100 g b. w. with 48 h intervals immediately after development of streptozotocin-induced diabetes prevented the development of diabetic angiopathy but did not normalize platelet functional activity and Pgl2/TxA2 balance in vessels and platelets. Similar injections of -tocopherol in the presence of developed angiopathy resulted in its regressive development and normalization of the before-said prostanoid balance and platelet characteristics.

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