Browsing by Author "Dülger, H."
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Article The Comparative Effects of Pentoxifylline and Ursodeoxycholic Acid on Il-1β, Il-6, Il-8 and Tnf-Α Levels in Nonalcoholic Fatty Liver(2003) Tuncer, I.; Uygan, I.; Dülger, H.; Türkdoǧan, K.; Şekeroǧlu, R.; Kösem, M.Objective: To investigate the comparative effects of the pentoxifylline (PTX) and ursodeoxycholic acid (UDCA) on IL-1β, IL-6, IL-8 and TNF-α in non-alcoholic fatty liver (NAFL) cases. Method: Twenty-eight cases diagnosed to have NAFL were included in our study. The cases were divided into 3 groups. 20 mg/kg/day PTX was given to the subjects in group A (6 male, 4 female), 15 mg/kg/day UDCA was given to the subjects in group B (5 males, 5 females) for 6 months. The cases in group C (5 male, 3 female) were followed as control group. The biochemical values and cytokine levels of the cases were evaluated before and at the end of the sixth month of the treatment. Results: When compared with the serum cytokine levels before and after the treatment, IL-8 and TNF-α levels were found to be significantly decreased both in group A and group B (p< 0.05), whereas there was no statistically significant change in IL-1β and IL-6 levels (p > 0.05). Conclusion: While PTX and UDCA significantly decreased the serum IL-8 and TNF-α levels in NAFL, their effects on IL-1β and IL-6 were not significant.Article Comparison of Serum Cytokeratin-18, Cea and Ca 19-9 Levels in Esophageal and Gastric Cancers(2004) Tuncer, I.; Dülger, H.; Uygan, I.; Öztürk, M.; Kotan, Ç.; Şekeroǧlu, R.The aim of this study was to determine clinical value of alone and combined use of serum cytokeratin (CK)-18, carcinoembryonic antigen (CEA) and CA 19-9 in esophageal squamous cell carcinoma and gastric adenocarcinoma. Serum tumor markers were measured in 60 patients who had esophageal squamous cell carcinoma or gastric adenocarcinoma. Thirty healthy subjects served as controls. In patients with gastric adecarcinoma serum CK-18 levels were significantly increased compared to both esophageal squamus cell carcinoma and control groups (p<0.01, p<0,05 respectively). But there was no significant difference in CK-18 levels between esophageal squamous cell carcinoma patients and healthy subjects (p>0.05). On the other hand, serum CEA and CA 19-9 levels did not differ between groups (p>0.05). The sensitivity of serum CK-18, CEA and CA19- 9 in esophageal squamous cell carcinoma were 53%, 70% and 66%, respectively. For gastric adenocarcinoma, the sensitivity of each tumor marker was similar 70%, 70% and 70%, respectively. CK-18/CA19-9 combination in the esophageal (83%) and gastric carcinomas (93%) were found to be more sensitive than other tumor markers when these markers were evaluated in combination. CEA exhibited the highest sensitivity for esophageal squamous cell carcinoma compared to CK-18, and CA19-9. However, the sensitivity of all tumor markers in gastric adenocarcinoma were similar. The combination of CK-18 and CA19-9 could increase the diagnostic sensitivity in esophageal and gastric carcinomas.Article The Effect of Dietary Treatment on Erythrocyte Lipid Peroxidation, Superoxide Dismutase, Glutathione Peroxidase, and Serum Lipid Peroxidation in Patients With Type 2 Diabetes Mellitus(Elsevier Inc., 2000) Ramazan Şekerǒlu, M.; Sahin, H.; Dülger, H.; Algün, E.Objectives: The aim of the present study was to investigate the effect of dietary treatment on serum and erythrocyte lipid peroxidation and erythrocyte antioxidative enzyme activity of patients with Type 2 diabetes. Design and methods: A total of 30 patients with newly diagnosed as Type 2 diabetes were enrolled to the study. A total of 30 healthy subjects served as controls. Diabetic patients were given standard dietary treatment that was composed of 50% to 55% carbohydrate and 30% fat for 2 months. No diet was applied for controls. For both groups serum and erythrocyte lipid peroxidation and erythrocyte superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) were obtained at first and at the end of 2 months. Results: Diabetic patients had higher serum and erythrocyte lipid peroxidation than those of controls before dietary treatment (p < 0.05). However, there was no absolute differences in erythrocyte SOD and GSH-Px (p > 0.05). At the end of 2 months of dietary treatment, while diabetics had still higher glucose and erythrocyte lipid peroxidation than controls (p < 0.05), serum lipid peroxidation, erythrocyte SOD, and GSH-Px levels did not differ significantly from those of controls (p > 0.05). In diabetic patients, after 2 months of dietary treatment, whereas serum and erythrocyte lipid peroxidation decreased, erythrocyte SOD and GSH-Px activities showed significant increase (p < 0.05). Conclusions: Our results showed significant alteration in serum and erythrocyte lipid peroxidation and erythrocyte antioxidant enzyme status of patients with Type 2 diabetes by dietary treatment. However, whether such alterations have clinical importance for diabetic patients needs further investigation. Copyright © 2001 The Canadian Society of Clinical Chemists.Article Serum Levels of Gastrin, and Insulin-Like Growth Factor (igf-1) in Patients With Gastro-Esophageal Cancer(2007) Dülger, H.; Izmirli, M.; Şekeroǧlu, M.R.; Alici, S.; Özen, S.; Özcan, S.Gastrin and insulin-like growth factor (IGF-1) seem to play a significant role in cell proliferation of mammalian. In this study, we were aimed at investigating the serum levels of gastrin and IGF-1 in patients with gastric cancer and esophagus cancer. In 68 patients with gastric (40 patients) and esophagus (28 patients) cancer and 30 healthy adults were measured serum levels of gastrin, IGF-1, CEA, CA 19-9, CA 125 and growth hormone. All these parameters have been increased in both cancer groups (gastric and esophagus) than those of control group and these increase were significantly for serum levels of gastrin, CEA, CA 125 and growth hormone (p<0.05). It is concluded that in patients with gastric and esophagus cancer a significant increase of serum gastrin can be found and increased gastrin levels play a role in gastric and esophageal carcinogenesis.