Harran Üniversitesi Tıp Fakültesi Dergisi

Yazarlar: Sema YILDIZ, Hasan ÇEÇE, Zeynep AKTI, İhsan KAYA, Hakim ÇELİK, Hale ÇAKIR, Abdullah TAŞKIN, Nurten AKSOY

Konular:-

Anahtar Kelimeler:Ceruloplasmin,Computed tomography,Lipid hydroperoxide,Oxidative stress,Total free sulfhydryl groups

Özet: Background: We aimed to assess the impact of computed tomography CT on serum oxidative stress markers of ceruloplasmin, lipid hydroperoxide LOOH and total free sulfhydryl groups –SH in patients undergoing non contrastenhanced CT.Methods: The study included 28 patients undergoing non contrast-enhanced cranial CT with spiral CT Toshiba Xvision , Tokyo, Japan . Venous blood samples were withdrawn at baseline Group I , and after non contrast-enhanced CT Group II . Serum ceruloplasmin levels were determined with an automatic colorimetric method, whereas serum LOOH levels were determined by the ferrous ion oxidation-xylenol orange FOX-2 method based on a known principle of the oxidation of Fe II to Fe III by lipid hydroperoxides, under acidic conditions. The concentration of sulfhydryl groups was calculated spectrophotometrically using reduced glutathione as the free sulfhydryl group. Comparison of serum oxidative stress markers among two groups of samples from each case were performed with paired samples t-test.Results: Serum LOOH 4.71±1.43 vs. 5.13±1.53 μmol tBLOOH/L, respectively, p=0.179 and –SH levels .311±.029 and .305±.025 mmol/L respectively, p=0.084 were not significantly different between Groups I and II. Serum ceruloplasmin was significantly decreased in Group II compared to Group I 741.7±70.7 vs.757.4±63.6 U/L respectively, p=0.015 . Conclusions: Besides the previous studies revealing deleterious effects of CT, the present study has shown decreased serum ceruloplasmin levels [besides unchanged serum LOOH and –SH levels] after performing non contrast-enhanced CT compared to baseline that might reveal a novel untoward effect of CT which should be reinforced with further researches

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