The effects of vitamin E treatment on tracheal reactivity and some biochemical parameters in diabetic rats

Bu çalışmada, vitamin E tedavisinin, diyabetik sıçanlarda trakea reaktivitesindeki değişiklikler ve bazı biyokimyasal parametreler üzerindeki etkileri araştırılmıştır. Erkek sıçanlar kontrol ve diyabetik olmak üzere rast gele iki gruba ayrılmıştır. Diyabet, tek doz streptozotosin enjeksiyonu (STZ; 60 mg/kg ;i.p.) ile yapılmıştır. Sonrasında diyabetik sıçanların bir kısmına, vitamin E tedavisi uygulanmıştır. Vitamin E, standart laboratuvar yemine (DL-_ tocophenyl asetat 0.5 % w/w)katılarak, diyabet oluştuktan 8 hafta sonra 8 hafta süre ile verilmiştir. Diyabetik sıçanların Vitamin E ile tedavisi, diyabette artan plazma trigliserid ve tiyobarbitürik asit reaktif substans düzeylerini, hiperglisemi üzerine bir etkisi olmaksızın azaltmıştır. Vitamin E, diyabetik trakeada ise artmış asetilkolin (Ask) ve potasyum klorür(KCl) yanıtlarını düzeltmiştir. Bu çalışmanın sonuçlan, vitamin E tedavisinin diyabetik sıçanlarda artan lipid peroksidasyonu ve trakea reaktivitesini düzelterek, diyabetik komplikasyonların tedavisinde yararlı etkileri olduğunu göstermektedir.

Diyabetik sıçanlarda, vitamin E tedavisinin trakeal reaktivite ve bazı biyokimyasal parametreler üzerine etkisi

The present study investigated the effect of vitamin E treatment on the alterations in reactivity of trachea and some biochemical parameters in diabetic rat. Rats were randomly divided into two groups: Control and diabetic. Diabetes was induced by a single dose injection of streptozotocin (STZ; 60 mg/kg ;i.p.). Diabetic rats were divided into two groups as untreated and treated with vitamin E. Vitamin E was given as a high-vitamin E diet in the standard laboratory chow diet (DL-_ tocophenyl acetate 0.5 % w/w) for 8 weeks started 8- week after induction of diabetes. In Vitamin E treated diabetic rats, the increased plasma triglyceride and thiobarbituric reactive substance levels due to diabetes were reduced without any effect on hyperglycemia. Vitamin E significantly restored the increased contractile responses to acetylcholine (ACh) and potassium chloride (KCl) in diabetic trachea. It is concluded that vitamin E treatment restored increased lipid peroxidation and tracheal reactivity in diabetic rat thus Vitamin E treatment may have beneficial effect on diabetic complications.

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