Browsing by Author "Cebi, A."

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The Activities of Serum Paraoxonase and Arylesterase and Lipid Profile in Acute Myeloid Leukemia: Preliminary Results
(verduci Publisher, 2015) Cebi, A.; Akgun, E.; Esen, R.; Demir, H.; Cifci, A.
OBJECTIVE: To investigate the activities of serum paraoxonase-1 (PON1) and arylesterase (ARE), and the lipid profile in newly diagnosed acute myeloid leukemia (AML) patients. PATIENTS AND METHODS: Thirty-two persons (16 of AML and 16 of healthy control) were included to the study. PON1 and ARE activities were measured as spectrophotometrically in serum samples. High density lipoprotein (HDL), low density lipoprotein (LDL), total cholesterol (TC), triglyceride (TG) were analyzed in autoanalyzer. RESULTS: PON1 activities were respectively 16.04 U/L and 18.6 U/L in AML and healthy controls. There was no statistical significance between groups (p > 0.05). The mean ARE activities were respectively 0.21 U/L and 0.36 U/L in AML and healthy controls. Serum ARE activity significantly decreased in AML group (p < 0.001). Serum HDL values were significantly decreased (181.8 +/- 76.2 mg/dl; p = 0.002) in AML. There was no difference in total cholesterol, LDL and triglyceride values (respectively; 181.8 +/- 76.2 mg/dl, 120.6 +/- 64.6 mg/dl, 157.3 +/- 87.2 mg/dl; p > 0.05) between AML and controls. CONCLUSIONS: This is the first documented study about serum PON1 activity in AML patients. Although serum PON1 activities were not changed in both groups, our data suggest that the decreased serum ARE activity and HDL levels may be related the pathogenesis of AML.
Catalase Activity, Serum Trace Element and Heavy Metal Concentrations, and Vitamin A, D and E Levels in Pre-Eclampsia
(Sage Publications Ltd, 2008) Kolusari, A.; Kurdoglu, M.; Yildizhan, R.; Adali, E.; Edirne, T.; Cebi, A.; Yoruk, I. H.
Catalase (antioxidant enzyme) activity in erythrocytes and serum levels of trace elements (copper, iron, zinc), heavy metals (cadmium, cobalt) and vitamins A (retinol), D (cholecalciferol) and E (alpha-tocopherol) were measured in 145 subjects comprising 47 pre-eclamptic pregnant women (PE), 48 healthy pregnant women (HP) and 50 healthy non-pregnant controls (NP). Catalase, vitamins A, D and E and levels of cobalt were significantly lower in the PE group compared with the HP and NP groups, whereas levels of copper, iron and cadmium were significantly higher in the PE group than in the HP and NP groups. Levels of zinc were significantly lower in both the PE and HP groups compared with the NP group. This assessment of oxidant/antioxidant imbalance in pregnant women could be useful in the early identification of pre-eclampsia and antioxidant supplementation in the early weeks of gestation might be useful.
Catalase Activity, Serum Trace Element and Heavy Metal Concentrations, Vitamin A, Vitamin D and Vitamin E Levels in Hydatidiform Mole
(Imr Press, 2009) Kolusari, A.; Adali, E.; Kurdoglu, M.; Yildizhan, R.; Cebi, A.; Edirne, T.; Yoruk, I. H.
Purpose of investigation: In this study we aimed to measure the activity of catalase, which is an antioxidant enzyme, the concentrations of some trace elements and heavy metals, and vitamin A, D and E levels in serum samples of patients with hydatidiform mole, normal pregnancies and healthy non pregnant women. Methods: Seventy-two women were enrolled in this study. Of these, 24 were healthy women in the first trimester of pregnancy (HP), 24 were healthy non-pregnant women (NP) and 24 were patients with complete hydatidiform mole (CHM). Results: Serum levels of catalase, Zn, Co, vitamin A, D and E were significantly lower in the CHM group when compared with the HP and NP groups (p < 0.001). Serum levels of Cu, Fe, and Cd were significantly higher in the CHM group when compared with the HP and NP groups (p < 0.001). Conclusion: The assessment of oxidant/antioxidant imbalance in pregnant women could be useful in the early determination of molar pregnancy and supplementation with antioxidants may be useful in the treatment of CHM, and may prevent recurrent molar pregnancy.
Effect of Alloxan on Urea, Creatine and Bilirubin Levels in Serum of Rats
(Blackwell Publishing, 2007) Cebi, A.; Yasar, S.; Oto, G.; Demir, H.
Evaluation of Levels of Some Tumor Markers, Acute Phase Proteins, Sialic Acid and Lipid Bound Sialic Acid Before and After Treatment in Stomach Cancer Patients
(Blackwell Publishing, 2008) Cebi, A.; Mert, H.; Mert, N.
Levels of Serum Α-Tocopherol, Retinol and Colecalciferol in Coronary Heart Disease Patients
(Blackwell Publishing, 2007) Cebi, A.; Kaya, Y.; Yoruk, I. H.; Demir, H.; Tuncer, M.
May Supplementation of Coenzyme Q10 Help Prevent Development of Hydatidiform Mole
(7847050 Canada inc, 2017) Kolusari, A.; Cebi, A.; Akgun, E.; Alp, H. H.; Bakan, E.
Objective: The pathological mechanisms of gestational trophoblastic disease have not yet been clearly determined. It is thought that oxidative damage contributes to the process. The aim of this study was to determine the levels of coenzyme Q10 (CoQ10), DNA damage, and lipid peroxidation in patients with hydatidiform mole. Materials and Methods: The authors studied the levels of CoQ10, 8-hydroxydeoxyguanosine (8-OHdG), malondialdehyde (MDA) by high-performance liquid chromatography (HPLC), and the activity of glutathione peroxidase (GPX) by spectrophotometric method in blood obtained from patients with a complete hydatidiform mole (n=29), healthy pregnant women (n=29), and healthy non-pregnant women (n=29). Results: The 8-OHdG/dG ratio (2.8148 +/- 0.81592) and MDA (10.8341 +/- 4.64875 mu mol) were significantly higher in patients with complete hydatidiform mole, while the ubiquinol-10/ubiquinone-10 ratio (0.2107 +/- 0.15675) and GPX activity (43.4606 +/- 18.31694 mU/ml) were lower (p < 0.001). Conclusion: The authors suggest that both mitochondrial oxidative and oxidative DNA damage play important roles in the pathogenesis of complete hydatidiform mole. Therefore supplementation of CoQ10 prevents recurrent gestational trophoblastic disease.