Publications by authors named "Ozdil Sadakat"

Introduction And Objectives: Hepatitis E virus (HEV) is one of the most common causes of acute hepatitis. In recent years, its role in the development of chronic hepatitis and cirrhosis especially in immunosuppressed patients and its wide range of extrahepatic involvement have increased the amount of research on HEV. In this study we aimed to investigate the presence of HEV infection in individuals with cryptogenic cirrhosis.

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Primary malignant melanoma of the esophagus (PMME) comprises only 0.1-0.2% of all malignant esophageal tumors.

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Background: Association of NOD2 (CARD15) gene mutations with inflammatory bowel diseases (IBD) is well known. We herein aimed to investigate the role of familial Mediterranean fever-associated MEFV variations in IBD patients as additional regional-specific risk factor.

Study: One hundred thirty-seven (78 female, 56.

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Background/aims: We aimed to determine the etiology of patients with duodenal and gastric ulcers.

Methods: 140 patients diagnosed with peptic ulcer between April 2002-2009 were enrolled in this prospective study. Two biopsy specimens were collected from the antrum and corpus for histology and one for rapid urease testing, and stool samples were analyzed for Helicobacter pylori antigen.

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Article Synopsis
  • The study explored the connection between gastroesophageal reflux (GER) and obstructive sleep apnea syndrome (OSAS) in adults using polysomnography and impedance-pHmetry.
  • Pathologic reflux episodes were found in 20 out of 22 OSAS patients, with 6 showing reflux-dependent apnea, indicating a significant link between reflux events and nighttime apnea occurrences.
  • A 3-month treatment with proton pump inhibitors (PPIs) led to a notable decrease in the apnea-hypopnea index (AHI), suggesting that managing reflux may help improve OSAS symptoms.
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Background/aims: Anticoagulant therapy is an accepted treatment for Budd-Chiari syndrome (BCS). However, the natural course of untreated patients is unclear. We aimed to evaluate the efficacy of anticoagulant therapy on survival in BCS.

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Article Synopsis
  • The study investigated the impact of mucosal changes in the small bowel of portal hypertensive patients, specifically focusing on causes of blood loss.
  • A total of 21 patients underwent capsule endoscopy, revealing that 90.5% had abnormalities linked to portal hypertension, including small bowel varices and mucosal erosions.
  • The findings indicated that small bowel varices and vascular ectasia were significant contributors to obscure bleeding in these patients.
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Background And Aims: Non-alcoholic fatty liver disease has long been accepted as benign; however, recent evidence suggests that the disease may progress to cirrhosis and hepatocellular carcinoma, although the natural course of the disease is still unclear. This study was designed to comparatively evaluate electron microscopic features of non-alcoholic fatty liver (NAFL) and non-alcoholic steatohepatitis (NASH).

Methods: Quantitative and semi-quantitative ultrastructural evaluations were performed on liver biopsies from 23 patients, 10 with NAFL and 13 with NASH.

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Background: Levels of prohepcidin, a homeostatic regulator of iron absorption, are altered in chronic hepatitis C and liver cirrhosis. However, data on the potential alterations of prohepcidin in patients with HBV-related liver disease are scarce. We investigated whether serum prohepcidin is related to iron overload and perenchymal dysfuction in HBV-related liver disease.

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Objective: To compare the frequency of intestinal metaplasia (IM) in patients with portal hypertensive gastropathy (PHG) to the control group with functional dyspepsia.

Methods: Two-hundred and eighty-nine cases were prospectively evaluated in three groups (controls:group I--123 patients; cirrhotics: group II--135 patients; noncirrhotic portal hypertensives: group III--31 patients). Mucosal biopsies (three antrum, one angulus, two corpus) were taken and examined for atrophy, IM, dysplasia, Helicobacter pylori (Hp) and histologic PHG.

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Background: Acquired hepatocerebral degeneration (AHD) and hepatic myelopathy (HM) are rare complications of chronic liver disease and are usually resistant to medical therapy.

Materials And Methods: The clinical and laboratory findings of 14 male and 2 female patients with AHD or HM were evaluated.

Results: The prevalence of AHD and HM was 2% inpatient case series in the last 10 years.

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Abnormal immune response to gliadin, genetic, and environmental factors play a role in the pathogenesis of celiac disease (CD). Non-responsiveness to hepatitis B virus (HBV) vaccination is related to genetic features. Certain human leukocyte antigen (HLA) genotypes are more prevalent among non-responders to HBV vaccination.

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In this study, the effect of combination of vitamin C (ascorbic acid), vitamin E (alpha -tocopherol), and selenium (sodium selenate) on ethanol-induced liver and intestine injury in rats was investigated. The ethanol-induced injury was produced by the administration of 1 ml of absolute ethanol to each rats. Animals received vitamin C (250 mg/kg), vitamin E (250 mg/kg), and sodium selenate (Se) (0.

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Background And Study Aims: Increased alanine aminotransferase (ALT) levels with negative hepatitis B virus (HBV) DNA by hybridization is a common problem in Turkey where is a mild endemic region. We aimed to evaluate the causes of elevated ALT levels in patients who are negative for hepatitis B e antigen (HBeAg) and HBV DNA (by hybridization) for at least 6 months.

Patients-methods: Forty-nine patients were enrolled in this study.

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Our aim was to evaluate effects of metformin, rosiglitazone, and diet with exercise in nonalcoholic fatty liver disease. Forty-seven patients (mean age, 44+/-10 years; 17 female) whose ALT levels had been high for at least 6 months and with hepatosteatosis detected by liver biopsy and/or USG were enrolled in this study. Of these, 12 were treated with 850 mg/day metformin (group 1), 11 with 4 mg/day rosiglitazone (group 2), and 24 with diet and exercise (group 3) for 1 year.

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Hepatic hydrothorax is a complication of cirrhosis that is uncommon and difficult to treat. Diuretic therapy, thoracentesis, transjugular intrahepatic portosystemic shunt and liver transplantation are the main therapeutic options. Here, we report on a 47-year-old man with decompensated liver cirrhosis related to hepatitis B and D virus infections and who had complications of hepatic hydrothorax and hepatorenal syndrome.

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The risk factors for the transmission of hepatitis C virus (HCV) infection varies substantially between countries and geographic regions. The aim of this investigation was to determine the risk factors which may be involved in the transmission of HCV infection in the Turkish population. This study included patients who were admitted to the Department of Gastroenterohepatology, Istanbul Medical Faculty, Istanbul University, between 1996 and 2002 and found to be anti-HCV positive during hospitalization or during follow-up as outpatients.

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Drug-induced hepatotoxicity is an important cause of hepatocellular injury. Hepatic necrosis may range from asymptomatic elevations in transaminases to fulminant hepatic failure and death. Alverine is an antispasmodic drug which is especially used in patients with irritable bowel syndrome.

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Background/aims: Pneumatic dilatation is a safe and most effective treatment for achalasia. We analyzed the long-term results of pneumatic dilatation in primary achalasia by objective and subjective findings.

Methodology: Pneumatic dilatation was performed in patients that were diagnosed with primary achalasia in our manometry laboratory between 1993-1999 years.

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Pyogenic liver abscess is a rarely seen extraintestinal complication of Crohn's disease. It has different features from other liver abscesses. Its clinical and laboratory findings are not specific and mimic the reactivation of Crohn's disease and diagnosis can be delayed.

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Objectives: Hepatorenal syndrome (HRS) is a severe complication of cirrhosis, leading to death in nearly all of cases in the absence of liver transplantation. Several treatments have been attempted as a bridge to liver transplantation. Promising results have been shown with terlipressin and albumin treatment.

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Achalasia is a disease that characterized by relaxation hazard of lower esophageal sphincter. In patients with achalasia, it's known that gastric emptying time is delayed. In this study we aimed to evaluate the difference between the gastric emptying time before and after pneumatic balloon dilatation.

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In this study, the effect of ascorbic acid (vitamin C), DL-alpha-tocopherol acetate (vitamin E), and sodium selenate (selenium) on ethanol-induced gastric mucosal injury in rats was investigated morphologically and biochemically. The gastric mucosal injury was produced by administration of 1 mL of absolute ethanol to each rat. Animals received vitamin C (250 mg/kg), vitamin E (250 mg/kg), and selenium (0.

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