Ali ŞAHİN, Semiha DEDE, Zabit YENER, Gürdal DAĞOĞLU, Musa ALKAN, Gökhan OTO

Karbontetraklorid ($CCI_4$) ile deneysel olarak karaciğer nekrozu oluşturulan ratlarda vitamin E+selenyum ve Nigella sativa (Çörekotu)

Bu çalışmada, ratlarda karbontetraklorid (CC14) ile deneysel oluşturulan karaciğer nekrozunun engellenmesinde Nigella sativa (çörekotu)'nın etkisi araştırıldı. Çörekotunun antioksidan etkisinin karşılaştırılabilmesi amacıyla, yaygın olarak antioksidan amaçla kullanılan vitamin E ve selenyum elementi seçildi. Denemede 40 adet rat kullanıldı ve her grupta sekiz rat bulunacak şekilde A, B, C, D ve E gruplarına ayrıldı. A grubu kontrol olarak belirlendi ve deneme boyunca intraperitoneal (i.p.) parafın likid, B grubuna i.p. olarak likid parafın içinde CC14, C grubuna i.p. olarak likid parafin içinde CC14 ve i.m. olarak vitamin E + selenyum kombinasyonunun ticari bir preparatı uygulandı. D grubuna i.p. olarak likid parafin içinde CCI4, i.m. olarak vit E + Se preparatı ve standart rat peletine % 10 oranında katılmış çörekotu, E grubuna ise, i.p. olarak likid parafin içinde CCI4 ve standart rat peletine % 10 oranında katılmış çörekotu ad libitum verildi. Tüm gruplardan 4 kez, kontrol grubundakilerden bir de deneme başlangıcında olmak üzere 5 kez kalpten kan alındı ve bu örneklerde Malondialdehid (MDA), Glutasyon peroksidaz (GSH-Px), Süperoksid dismutaz (SOD), Alanin transaminaz (ALT), Aspartat aminotransferaz (AST), Glutasyon (GSH) ve serüloplazmin analizleri yapıldı. B grubunda lipid peroksidasyon ürünlerinin ve antioksidan enzimlerin belirgin bir şekilde arttığı görüldü. En az % ağırlık kaybı E grubunda gözlendi. Karaciğer örneklerinde en az nekroz oranı D grubunda saptandı. Histopatolojik muayene sonuçları da biyokimyasal sonuçlarla tutarlı idi. Sonuç olarak vitamin E + selenyum ve çörekotunun karaciğer nekrozunu engelleyebildiği kanısına varılmıştır.

The effect of Nigella sativa (black seed) and vit. E+selenium in the prevention of liver necrosis experimentally induced with carbon tetrachloride ($CCI_4$) in rats

The preventive effect of Nigella sativa (black seed) was investigated in rats with hepatic necrosis experimentally induced by carbon tetrachloride ($CCl_4$). To compare the antioxidant effect of black seed, well-known antioxidants, vitamin E and selenium mineral, were used. This study was conducted on 40 rats that were divided into five groups of eight. Group A was separated as a control group and treated intraperitoneally (i.p.) with only liquid paraffin. Group B was administered i.p. $CCl_4$ in liquid paraffin. Group C was administered i.p. CCl4 in liquid paraffin and intramuscularly (i.m.) treated with vitamin E + selenium. Group D was administered i.p. $CCl_4$ in liquid paraffin, i.m. treated with vit E + Se and fed ad libitum with standard rat pellets containing 10% black seed. Group E was administered i.p. $CCl_4$ in liquid paraffin and fed ad libitum with standard rat pellets containing 10% black seed. Blood samples were drawn from the heart of the rats four times for the experimental groups and five times for the control group, one of which was at the beginning of the experiment. In blood samples, malondialdehyde (MDA), glutathione peroxidase (GSH-px), superoxide dismutase (SOD), alanine transaminase (ALT), aspartic transaminase (AST), intracellular glutathione (GSH) and ceruloplasmin analyses were performed. In group B blood samples, lipid peroxidation and antioxidant enzymes were significantly increased. The closest enzyme activities to those of the control group were found in group E. The least weight loss percentages were in group E. The least necrosis was detected in the liver samples of group D. Histopathological results were consistent with biochemical results. In conclusion, a liver necrosis preventive effect of vitamin E + selenium and black seed was observed.

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