Ali Riza Soylu

Trakya University, Adrianoupolis, Edirne, Turkey

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Publications (19)89.32 Total impact

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    ABSTRACT: Objective. In this study, we aimed to investigate the possible role of serum cytokines in the development of hepatic osteodystrophy. Matherial and Methods. 44 consecutive male cirrhotic patients (17 alcoholic, 20 hepatitis B, 7 hepatitis C), 15 age- and sex-matched chronic alcoholics without liver disease, and 17 age- and sex-matched healthy controls were included in the study during one year period. Bone mineral density was measured by dual X-ray absorptiometry in the lumbar vertebrate and femoral neck. Serum interleukin levels were measured by ELISA method. Results. Although osteopenia frequency between our cirrhotic patients was 20%, there was no difference in T-scores among the controls and other groups. Serum interleukin-1, interleukin-8, and tumor necrosis factor-alpha levels were not different between all groups. Serum interleukin-2 and interleukin-6 levels were higher in the cirrhotics than controls (P < 0.001). However, there were no significant difference between osteopenic and nonosteopenic cirrhotics. Conclusion. According to the results of the study in this small population of 44 male cirrhotic patients, frequency of hepatic osteopenia is small and serum interleukins 1, 2, 6, 8, and tumor necrosis factor-alpha may not play a role in the pathogenesis of hepatic osteodystrophy. Further studies in which large number of patients involved are necessary in this field.
    Gastroenterology Research and Practice 01/2012; 2012:425079. · 1.62 Impact Factor
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    ABSTRACT: The outcome of Helicobacter pylori infection has been related to specific virulence-associated bacterial genotypes. The best known genotypic virulence factors of H. pylori are cytotoxin-associated gene A (cagA) and vacuolating cytotoxin gene A (vacA). The objective of this study was to assess the relationship between H. pylori cagA and vacA status and histopathological findings. Esophagogastrodoedonoscopy was performed in 80 dyspeptic patients. Antrum and corpus biopsies were obtained for isolation of H. pylori and for histopathological assessment. The polymerase chain reaction was used to detect cagA and vacA genes of H. pylori using specific primers. Biopsy samples were stained with hematoxylin and eosin, and histopathological findings were graded using the "updated Sydney system". H. pylori from 57 of the 80 patients was incubated. Of the 57 patients, 44 were cagA positive. In the corpus biopsy specimens there was a significant relationship between the density of H. pylori colonization (P = 0.02) and chronic inflammation (P = 0.02) and cagA-positive genotypes. In the antrum specimens there was a significant relationship between cagA positivity and neutrophil activity (P = 0.003) and glandular atrophy (P = 0.002), but not with H. pylori density, chronic inflammation, and intestinal metaplasia. The odds ratio of cagA-positive vs. cagA-negative strains for the presence of glandular atrophy, irrespective of grading and of gastric localization, was 4.62 (95% CI, 1.18-18.08, P = 0.041). No significant relationships were observed between vacA s1 and s2 genotypes and histopathological parameters. Corpus neutrophil infiltration was found to be more severe in the m1 group than in the m2 group (P = 0.004). Other histopathological features showed no difference between m1 and m2 genotypes. In conclusion H. pylori strains showing cagA positivity are associated with more severe gastritis in some histological features but virulence factors of H. pylori do not appear to determine the overall pattern of gastritis.
    Digestive Diseases and Sciences 06/2008; 54(1):103-10. · 2.26 Impact Factor
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    ABSTRACT: Background: Oxidative stress has been associated with tissue injury in alcoholic liver disease. Although this close association is well known, whether prevention of oxidative stress retards tissue injury has not been thoroughly investigated.Objective: The aim of this study was to determine the effects of supplementation with vitamins E and C on antioxidant enzyme status and histologic changes in hepatic tissue in a rat model of alcoholic liver disease.Methods: This 8-week, blinded, controlled study was conducted at the Department of Internal Medicine, Trakya University, Edirne, Turkey. Weanling albino female protein-deficient Wistar rats weighing ∼200 g were randomly assigned to 1 of 6 groups: (1) liquid diet+ethanol+vitamin E 15 mg/kg PO (LDetvitE); (2) liquid diet+ethanol+vitamin C 10 mg/kg PO (LDetvitC); (3) liquid diet+ethanol+vitamin E 15 mg/kg+vitamin C 10 mg/kg PO (LDetvitEC); (4) liquid diet+ethanol (LDet); (5) liquid diet+isocaloric sucrose (LDS); and (6) normal diet (control). The primary end point of the study was to determine whether antioxidant vitamin E/C combination therapy prevents development of hepatic fibrosis (ie, cirrhosis in a period of 1 year). After being euthanized at week 8, the rats were weighed, and their livers and spleens were weighed. Hepatic tissue specimens were histopathologically assessed according to the Brunt system. Hepatic tissue glutathione peroxidase, superoxide dismutase, and catalase activities were determined. Biochemical tissue collagen concentrations were measured to determine the presence of hepatic fibrosis.Results: Seventy-two rats were included in the study (mean [SE] weight, 205 [21] g) (12 rats per group). Initially planned to last 48 weeks, the study was terminated at 8 weeks due to the death of 3 rats in each group (except the LDS group and control group). The relative liver weight was significantly lower in the LDetvitEC group compared with that in the LDet group (mean [SE], 3.7% [0.5%] vs 4.8% [0.9%]; P
    Current Therapeutic Research 03/2006; 67(2):118-137. · 0.45 Impact Factor
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    ABSTRACT: Patients with acute leukaemia suffer from various haemorrhages, most frequently due to thrombocytopenia. We could not reach any information regarding the frequency of gastrointestinal bleeding in acute leukaemia and decided to search this complication in patients with acute and chronic leukaemias and myeloproliferative disorders, retrospectively. During a 6-year period, 291 patients with acute leukaemia, 52 patients with chronic leukaemia and 108 patients with myeloproliferative disorders had been followed. Thirty-two cases of overt gastrointestinal haemorrhage episodes (25 upper, 7 lower) were observed during the mentioned period. The frequency of bleeding episodes was 7.1% (32/451) in haematologic malignancies as a whole, 5.8% (17/291) for acute leukaemia, 1.9% (1/52) for chronic leukaemia and 13% (14/108) for myeloproliferative disorders. If the patients with myeloproliferative disorders in blastic phase were analysed separately, the ratio was 30% (6/20). Oesophagogastroduodenoscopy, which could be performed in 8 of 25 upper gastrointestinal haemorrhage episodes, revealed erosive gastritis in five patients and duodenal ulcers in three patients. Neutropenic enterocolitis was the underlying cause in all of the seven patients with lower gastrointestinal haemorhage. Five out of the seven patients had acute leukaemia. In 7 bleeding attacks, out of 32, the ultimate result was death. Generally, the haemorrhage was only a contributing cause of mortality. All of the mortality cases were patients with acute leukaemia. Especially, the patients with myeloproliferative disorders are prone to develop gastrointestinal haemorrhage. The manifestation is generally as upper gastrointestinal bleeding due to gastric erosions and duodenal ulcers. Lower gastrointestinal bleeding is frequently a problem of the patients with acute leukaemia. It is commonly a sign of neutropenic enterocolitis.
    Digestive and Liver Disease 01/2006; 37(12):917-22. · 2.89 Impact Factor
  • Journal of Gastroenterology and Hepatology 05/2005; 20(4):657-60. · 3.63 Impact Factor
  • Journal of Clinical Gastroenterology 03/2004; 38(2):134. · 3.19 Impact Factor
  • Journal of Hepatology 01/2004; 40:101-101. · 10.40 Impact Factor
  • The American Journal of Gastroenterology 07/2003; 98(6):1446-8. · 9.21 Impact Factor
  • Journal of Hepatology 04/2003; 38:71-71. · 10.40 Impact Factor
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    ABSTRACT: To determine the epidemiological features of ulcerative colitis in the Trakya region of Turkey, southeast Europe, we conducted a descriptive, cross-sectional, hospital-based study. All subjects were followed, and age, sex, place of residence, family history, educational status, tobacco consumption and use of oral contraceptives were recorded. The study included 49 cases of ulcerative colitis. The incidence of the disease was 0.59 per 100,000 in 1998, 0.89 per 100,000 in 1999, 0.89 per 100,000 in 2000 and 0.69 per 100,000 in 2001. The overall prevalence of the disease was 4.9 per 100,000; it was 2.18 per 100,000 in rural areas and 5.87 per 100,000 in urban areas. As in the Mediterranean countries, both the incidence and the prevalence of ulcerative colitis were found to be low. The incidence was significantly higher in urban areas than in rural areas.
    The Journal of international medical research 04/2003; 31(2):141-8. · 1.10 Impact Factor
  • Journal of Hepatology 04/2002; 36:209-209. · 10.40 Impact Factor
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    ABSTRACT: Helicobacter pylori (HP) is the most common cause of nonerosive nonspecific gastritis. Gastric and duadenal ulcer both are found to be associated with HP infection. Another consequence of HP infection is that it may progress to chronic atrophic gastritis which is a well recognized risk factor for adenocarcinoma of the stomach. So by extension, HP infection can be accepted as a risk factor for gastric cancer. From this aspect, identification of risk groups is increasingly important. It is well-known that patients with diabetes mellitus are more prone to infection. Besides this, presence of gastroparesis diabeticorum may lead to bacterial overgrowth in the upper gastrointestinal (GI) tract. The present crossectional study was planned to study the presence of HP infection in diabetic patients with alterations in upper GI motility and to compare the results with healthy control group. Group I consisted of 51 patients with type II diabetes mellitus (as defined by National Data Group criteria) without any dyspeptic symptoms. Twenty-five age-matched healthy people served as a control in group II. Radionuclide-labelled solid meals were used to calculate gastric emptying time (GET). According to the results, patients in group I were divided into two groups. Patients with prolonged GET were grouped as group IA, while group IB consisted of patients with normal or shortened GET. Presence of HP gastritis is determined by histopathologic examination of endoscopic biopsy specimen. The results showed that the prevalence of HP gastritis in group I and II were 80.4% and 56% respectively and the difference was significant statistically (p: 0.03). In group IA, the prevalence of HP infection was estimated to be 88.2%, while in group IB it was 76.5% but the difference was not significant (p: 0.31). We have not found any correlation between HbA1c levels and the presence of HP infection in both group IA and IB (p values 0.26 and 0.15 respectively). We conclude that the prevalence of HP gastritis is higher in asymptomatic diabetic patients compared with healthy people. But there is no association between the alterations in GET and the presence of HP gastritis as indicated by our results. So prolonged GET may not be regarded as a specific pathogenic mechanism or a cause of HP infection in NIDDM patients.
    Experimental and Clinical Endocrinology & Diabetes 02/1999; 107(3):172-6. · 1.76 Impact Factor
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    ABSTRACT: Platelets have been suggested to play a role in the inflammatory response, including defence against bacteria. The aims of this study were to determine in vivo platelet activity during the clinical course of pulmonary tuberculosis and to investigate whether or not there is a correlation between the magnitude of platelet activation and the extent of the pulmonary disease. T-lymphocyte activity was also analysed in the patients. Platelet factor-4 (PF4) and soluble interleukin-2 receptor-alpha (sIL-2Ralpha) concentrations were used as markers of platelet and T-lymphocyte activation, respectively. Twenty-five patients with pulmonary tuberculosis were studied. Fifteen healthy subjects served as a control group. The levels of both sIL-2Ralpha (3,000+/-1,948 pg x mL(-1)) and PF4 (103.1+/-6.7 IU x mL(-1)) were significantly higher in the patients with tuberculosis than in the control group (984+/-360 pg x mL(-1) and 78.2+/-23.9 IU x mL(-1), respectively) (Mann-Whitney U-test, p<0.001 for both comparisons). The plasma PF4 levels were found to be well correlated with the extent of pulmonary lesions on chest radiography (the Spearman's bivariate correlation analysis, r=0.65, p<0.001). However, sIL-2Ralpha concentrations did not correlate with the extent of disease. In conclusion, it has been suggested that platelet and T-lymphocyte activation occurs during pulmonary tuberculosis. The good correlation between platelet activation and the extent of pulmonary tuberculosis might be ascribed to a pathophysiological role of platelets in pulmonary tuberculosis.
    European Respiratory Journal 01/1999; 12(6):1375-9. · 7.13 Impact Factor
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    ABSTRACT: Behçet's disease may be a possible cause of both occlusive and aneurysmal arterial involvement as well as recurrent venous thrombosis. A case of Behçet's disease complicated with vascular involvement leading to intestinal infarction is presented. A 41-yr-old man suffering from Behçet's disease for 15 yr presented with a 2-day history of severe abdominal pain and bloody diarrhea. Intestinal infarction secondary to thrombosis of the superior mesenteric artery had been diagnosed during surgical exploration 3 yr previously. He was started on anticoagulation with nutritional support. The patient was readmitted with severe diarrhea and malabsorption symptoms 3 yr after intestinal resection. A thrombus located in the posterior wall of the infrarenal portion of aorta was detected by aortography and ultrasonography. Although thrombosis is a relatively common complication of Behçet's disease caused by vasculitis, protein C deficiency, which is a pertinent laboratory finding in this case, might be a secondary factor in the thrombotic event. This is the first case reported of mesenteric artery thrombosis leading to bowel infarction and abdominal aorta thrombosis associated with protein C deficiency.
    The American Journal of Gastroenterology 01/1999; 93(12):2556-8. · 9.21 Impact Factor
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    ABSTRACT: Chronic intestinal pseudo-obstruction is a rare clinical syndrome characterized by symptoms and signs of intestinal obstruction without any organic lesion obstructing the intestine. Visceral myopathy is one of the etiological causes and full thickness intestinal biopsy is essential for reaching a diagnosis. In this article we describe 4 cases of hollow visceral myopathy; our aim is to stress the importance of full thickness biopsy. Four cases of hollow visceral myopathy are studied herein. All the patients had recurrent abdominal pain and constipation. The onset of symptoms was early in life or in the second to third decade. A diagnosis was established in all cases by full thickness intestinal biopsy obtained during laparotomy. Associated disorders were noted in 2 cases. One patient had Axenfelt syndrome, non-descended testicles and primary hypogonadism, and another had a diagnosis of Kleinfelter syndrome. All of the 4 cases were diagnosed to be suffering from hollow visceral myopathy by full thickness intestinal biopsy and 2 had additional disorders as well. Patients with chronic intestinal pseudo-obstruction should be carefully evaluated as to whether there is an associated disorder and the diagnosis may be delayed unless full thickness intestinal biopsy is obtained.
    Hepato-gastroenterology 01/1999; 46(25):349-52. · 0.91 Impact Factor
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    ABSTRACT: Neutropenic enterocolitis is a frequent autopsy finding in adult patients with acute leukemias. The predisposing factors other than neutropenia are not clear. There are also contradictions about treatment. Therefore, this entity still presents a diagnostic and therapeutic dilemma for clinicians. This retrospective study was performed to determine the incidence of neutropenic enterocolitis in adult leukemic patients, to examine the possible risk factors, clinical characteristics and treatment outcome. The pathogenesis is also discussed considering clinical and laboratory findings of the patients. The incidence of neutropenic enterocolitis was 6.5% for acute myeloid leukemia and 4.6% for acute lymphoblastic leukemia. The mean absolute neutrophil count at diagnosis was 48/mm3 (median: 0/mm3). The median duration of severe neutropenia (absolute neutrophil count < or = 500/mm3) on follow-up before the diagnosis was 32 days. Thirteen out of 20 patients had received antineoplastic drugs within the last 12 days, but 2 had not. Fourteen patients had signs of peritoneal irritation and 3 of them underwent surgery. The others received supportive measures, i.e. bowel rest, intravenous fluids, combinations of wide spectrum antibiotics, transfusions, hemodynamic supports and nasogastric decompression, if necessary. All 3 patients who underwent surgery survived, whereas only 1 of the 11 who received other treatments did. Six patients without signs of peritonitis were treated with antibiotics and the mentioned supportive measures. Four survived, but the others died due to sepsis. In conclusion, considering some recent reports that stated good outcome with conservative measures in the presence or absence of peritonitis, there is still debate regarding the optimal choice of treatment. The importance of early diagnosis cannot be overemphasized. Signs of peritoneal irritation indicate a life threatening condition. Surgery can be performed successfully in such patients. Long duration of neutropenia may be an important risk for neutropenic enterocolitis.
    International Journal of Hematology 08/1997; 66(1):47-55. · 1.68 Impact Factor
  • Vox Sanguinis 02/1997; 73(1):54. · 3.30 Impact Factor
  • The American Journal of Gastroenterology 05/1996; 91(4):823-4. · 9.21 Impact Factor
  • Acta gastro-enterologica Belgica 72(2):277-8. · 0.58 Impact Factor