Effect of leflunomide on methotrexate-induced oxidative small intestinal injury in rats

Year 2011, Volume: 10 Issue: 1, 23 - 27, 01.04.2011

Ufuk Kutluana Nevin Oruç Mustafa Yılmaz Nadir Yönetci Bünyamin Kaptanoğlu Ömer Özütemiz

Abstract

Background and Aims: The aim of this study was to investigate the effects of leflunomide treatment in methotrexate-induced oxidative small intestinal injury in rats. Materials and Methods: Forty rats were randomly divided into 4 groups. Methotrexate-induced intestinal injury was induced by single dose intraperitoneal injection of 20 mg/kg methotrexate. After induction, leflunomide (10 mg/kg/day) was administered intragastrically for 5 consecutive days. On the sixth day, homogenized small intestine tissues were examined for superoxide dismutase activity, myeloperoxidase activity, and glutathione and malondialdehyde levels. Results: Leflunomide treatment significantly decreased tissue myeloperoxidase activity and malondialdehyde levels (3.4±0.7, 1.9±0.4, p

Keywords

Leflunomide, methotrexate, intestinal injury

Ratlarda metotreksata bağlı oksidatif intestinal hasarda leflunomidinin koruyucu etkisinin araştırılması

Abstract

Giriş ve Amaç: Bu çalışmanın amacı metotreksata bağlı oksidatif ince barsak hasarında leflunomid tedavisinin etkisini araştırmaktır. Gereç ve Yöntem: 40 adet rat randomize olarak dört gruba ayrılmıştır. Metotreksata bağlı ince barsak hasarı 20 mg/kg metotreksatın tek doz intraperitoneal injeksiyonu ile oluşturulmuştur. İndüksiyon sonrası leflunomid 10 mg/kg/gün dozunda intra gastrik olarak 5 gün boyunca verilmiştir. İnce barsak dokuları, 6. gün superoksit dismutaz aktivitesi, myeloperoksidaz aktivitesi, glutatyon ve malondialdehit düzeylerinin ölçümü için homojenize edilmiştir. Bulgular: Leflunomid tedavisi doku myeloperoksidaz aktivitesi ve malondialdehit düzeylerini anlamlı ölçüde azaltmıştır (Sırasıyla 3.4±0.7, 1.9±0,4 p < 0.05 ve 231±199, 94±80 p < 0.05). Leflunomid tedavisi doku glutatyon düzeyleri ve süperoksit dizsmutaz aktivitesindeki azalmayı anlamlı ölçüde iyileştirmiştir (Sırasıyla 21±0.5, 25±3 p < 0.05 ve 22±0.6, 25±2 p < 0.05). Sonuç: Leflunomid tedavisi metotreksata bağlı ince barsak hasarındaki oksidatif parametreleri düzeltmektedir.

Keywords

Leflunomid, metotreksat, intestinal hasar

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