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Dive into the research topics where Omer Ozbakir is active.

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Featured researches published by Omer Ozbakir.


Journal of The American Academy of Dermatology | 1999

Helicobacter pylori eradication treatment reduces the severity of rosacea

Serap Utaş; Omer Ozbakir; Abdullah Turasan; Cengiz Utas

BACKGROUND A higher prevalence of Helicobacter pylori infection in rosacea patients than in healthy controls has been reported. OBJECTIVE The aim of this study was to investigate the effect of H. pylori eradication therapy in patients with rosacea. METHODS Twenty-five rosacea patients and 87 age- and sex-matched healthy controls were included in this study. We detected IgG and IgA antibodies against H. pylori in both groups. An upper gastrointestinal endoscopy and a rapid urease test were performed on the 13 patients with rosacea who accepted this procedure. Amoxicillin 500 mg 3 times daily, metronidazole 500 mg 3 times daily, and bismuth subcitrate 300 mg 4 times daily were administered to patients positive for H. pylori. The severity of rosacea was scored before and after treatment. RESULTS There was no statistical difference in seropositivity in either group. In H. pylori-positive rosacea patients there was a significant decrease in the severity of rosacea at the end of the treatment as compared with the initial scores. CONCLUSION Our findings suggest that H. pylori may be involved in rosacea and that eradication treatment may be beneficial.


Journal of Clinical Laboratory Analysis | 2013

Neutrophil–Lymphocyte Ratio as a Predictor of Disease Severity in Ulcerative Colitis

Mehmet Celikbilek; Serkan Dogan; Omer Ozbakir; Gokmen Zararsiz; Hamit Kücük; Sebnem Gursoy; Alper Yurci; Kadri Güven; Mehmet Yücesoy

Blood neutrophil‐to‐lymphocyte (N/L) ratio is an indicator of the overall inflammatory status of the body, and an alteration in N/L ratio may be found in ulcerative colitis (UC) patients. The aims of this study were to investigate the utility of N/L ratio as a simple and readily available predictor for clinical disease activity in UC. J. Clin. Lab. Anal. 27:72–76, 2013.


World Journal of Hepatology | 2014

Circulating microRNAs in patients with non-alcoholic fatty liver disease

Mehmet Celikbilek; Mevlut Baskol; Serpil Taheri; Kemal Deniz; Serkan Dogan; Gokmen Zararsiz; Sebnem Gursoy; Kadri Güven; Omer Ozbakir; Munis Dundar; Mehmet Yucesoy

AIM To identify novel non-invasive biomarkers for non-alcoholic fatty liver disease (NAFLD). METHODS Twenty patients with histologically proven NAFLD and 20 controls were included. All NAFLD cases were scored using the NAFLD activity score. The relative expressions of miR-197, miR-146b, miR-10b, miR-181d, miR-34a, miR-122, miR-99a and miR-29a were analyzed using real-time polymerase chain reaction. RESULTS Serum levels of miR-181d, miR-99a, miR-197 and miR-146b were significantly lower in biopsy-proven NAFLD patients than in the healthy controls. Serum levels of miR-197 and miR-10b were inversely correlated with degree of inflammation and miR-181d and miR-99a were inversely correlated with serum gamma glutamyl transferase levels in non-alcoholic steatohepatitis patients. CONCLUSION NAFLD is associated with altered serum miRNA expression pattern. This study provides clues for defining the non-invasive diagnosis of NAFLD.


Journal of Clinical Gastroenterology | 2005

The prevalence of unrecognized adult celiac disease in Central Anatolia.

Sebnem Gursoy; Kadri Güven; Simsek T; Yurci A; Torun E; Koc N; Patiroglu Te; Omer Ozbakir; Mehmet Yucesoy

Background: The aim of this study is to assess the prevalence of unrecognized adult celiac disease in Central Anatolia of Turkey and establish if prevalence figures are similar to other reports in the international literature. Methods: Subjects were randomly selected from patients at the time of blood sampling because of a routine examination or suspicion of some disorder other than celiac diseases and were screened with anti-tissue transglutaminase IgA and serum IgA measurements. Duodenal biopsies were taken from the patients who were found positive for anti-tissue transglutaminase IgA and had low IgA levels. Results: A total of 906 subjects between 20 and 59 years of age were included. Small bowel biopsies were performed for 55 of the 906 participants. Fifty-two of 55 participants taken biopsies had anti-tissue transglutaminase IgA levels greater than 15 IU/mL and 3 of them had low IgA levels. Celiac disease was diagnosed as 9 of 906 (0.99%). The majority of the patients with celiac disease had nonspecific gastrointestinal symptoms. There was no correlation between the titers of anti-tissue transglutaminase IgA and the severity of histopathologic findings. Conclusions: In this study, we found that unrecognized adult celiac disease in Central Anatolia affects approximately 1% of the population, and the major constellation of symptoms are nonspecific gastrointestinal related. Serologic data are not adequate for a definite diagnosis, but the anti-tissue transglutaminase IgA test has high diagnostic value and may be used as screening tool. Confirmation with intestinal biopsy is required for a definite diagnosis.


Diseases of The Colon & Rectum | 1995

Colonic subepithelial collagenous thickening in diabetic patients

Olcay Kandemir; Cengiz Utas; Ömür Gönen; Tahir Patiroglu; Omer Ozbakir; Fahrettin Kelestimur; Mehmet Yücesoy

PURPOSE: This study was designed to investigate the effect of intestinal subepithelial collagenous thickening on diabetic diarrhea because one of the seven patients diagnosed with collagenous colitis was diabetic. METHODS: Rectosigmoidoscopic rectal biopsies were taken from 50 diabetic patients (8 with and 42 without diarrhea), 20 nondiabetic patients with diarrhea, and 10 healthy patients. Histopathologic examinations and measurements of subepithelial collagen layers were performed on these biopsies. RESULTS: In diabetic patients who had diarrhea, the subepithelial collagen layer (SCL) was thicker than it was in diabetics without diarrhea (P<0.05). In diabetic groups, the SCL was thicker than it was in both nondiabetics with diarrhea and those without diarrhea (P<0.05). There was no statistical difference between nondiabetics with diarrhea and those without (P>0.05). There was no correlation between collagen thickness, age, and diabetes duration (P>0.05). CONCLUSION: It was concluded that there was a thickening of the colonic SCL in diabetic patients.


Journal of Clinical Gastroenterology | 2008

Advanced Oxidation Protein Products : A Novel Marker of Oxidative Stress in Ulcerative Colitis

Mevlut Baskol; Gulden Baskol; Derya Kocer; Omer Ozbakir; Mehmet Yucesoy

Background/Goals The etiology and pathogenesis of chronic inflammatory bowel diseases are still poorly understood. Oxidative stress takes place in the pathogenesis of ulcerative colitis (UC) and advanced oxidation protein products (AOPP) are accepted as a novel marker of oxidative stress. There are no data concerning whether AOPP may be used as a simple serum marker to assess the disease activity, predict severity of the disease course in UC. Study In this study, we determine the importance of neutrophil activation and the role of oxidative stress in the pathogenesis of UC, by quantification of AOPP and total thiol levels as markers of oxidative protein damage, malondialdehyde levels as a marker of lipid peroxidation, and myeloperoxidase activity as a marker of neutrophil activation in patients with UC. Results Serum levels of AOPP, thiol, myeloperoxidase activity, and malondialdehyde were found as increased in UC group compared with controls (P=0.004, 0.047, 0.001, and 0.001 respectively). Conclusions Our finding of increased levels of plasma AOPP levels supports the presence of oxidative stress and protein oxidation in UC and this marker may be used as a simple serum marker to assess disease activity, predict the severity of disease course, and perhaps response to therapy.


Postgraduate Medical Journal | 1996

The effects of octreotide in a patient with Nelson's syndrome

Fahrettin Kelestimur; Cengiz Utas; Omer Ozbakir; Ahmet Selcuklu; Olcay Kandemir; Nevzat Özcan

We have administered octreotide, 100 micrograms tid, to a 27-year-old man with Nelsons syndrome. After seven days of therapy, adrenocorticotropin levels fell to 54% of initial values, and some shrinkage of the tumour was observed. This study indicates that octreotide therapy may have a role in the treatment of Nelsons syndrome.


Journal of Alternative and Complementary Medicine | 2012

Endoscopic Topical Application of Ankaferd Blood Stopper® in Gastrointestinal Bleeding

Ahmet Karaman; Mevlut Baskol; Sebnem Gursoy; Edip Torun; Alper Yurci; Mehmet Celikbilek; Kadri Güven; Omer Ozbakir; Mehmet Yucesoy

AIM This was a prospective study investigating the efficacy of Ankaferd Blood Stopper(®) (ABS), an herbal preparation, in patients with upper gastrointestinal (UGI) bleeding. MATERIALS AND METHODS A total of 30 patients (22 male, 8 female) who had UGI bleeding (with differing causes) were included in the study. ABS was used to stop the bleeding. RESULTS Primary hemostasis was achieved in 26 of the 30 cases. CONCLUSIONS ABS is an effective and safe agent to use in patients with UGI bleeding.


Journal of Clinical Gastroenterology | 2004

The role of serum zinc and other factors on the prevalence of muscle cramps in non-alcoholic cirrhotic patients

Mevlut Baskol; Omer Ozbakir; Ramazan Coskun; Gulden Baskol; Recep Saraymen; Mehmet Yucesoy

Background/Aims: To determine the prevalence of muscle cramps in patients with liver cirrhosis and to identify factors associated with their development, especially serum zinc. Method: One hundred cirrhotic patients and 85 healthy subjects were enrolled into the study. True muscle cramp was defined as at least 1 painful leg cramp either occurring at rest or strong enough to waken a patient from sleep, occurring at least once a week persisting for a period of greater than 1 year. Creatinine, calcium, magnesium, sodium, potassium, zinc, glucose, alanine aminotransferase, total bilirubin, and albumin levels were detected in sera. Prothrombine time was measured in cirrhotic patients. Presence or absence of ascite was determined by sonography. Results: True muscle cramps were significantly more common in patients with cirrhosis when compared with the control group (59% vs. 7.1%, respectively, P < 0.001). Cramp (+) cirrhotic patients had older age (49.54 ± 10.09 vs. 55.54 ± 7.90, respectively; p: 0.001) and higher Child-Pugh scores (7.56 ± 2.32 vs. 9.02 ± 2.55, respectively; p: 0.004) when compared with cramp (−) patients. None of the serum related factors such as creatinine, calcium, magnesium, sodium, potassium, zinc, glucose, alanine aminotransferase, total bilirubin, and albumin levels had any statistically significant contribution to the etiology. Conclusion: Muscle cramps are frequent complication of cirrhosis. Neither biochemical characteristics including decreased serum zinc levels nor the use of diuretics explained the greater prevalence of cramps in patients with cirrhosis. We conclude that the detrimental effect of cirrhosis on muscle fibers may be the major factor.


Clinics and Research in Hepatology and Gastroenterology | 2011

Effects of testosterone gel treatment in hypogonadal men with liver cirrhosis

Alper Yurci; Mehmet Yücesoy; Kursad Unluhizarci; Edip Torun; Sebnem Gursoy; Mevlut Baskol; Kadri Güven; Omer Ozbakir

INTRODUCTION Hypogonadism characterized by low serum testosterone level, loss of libido, small testes, impotence and gynecomastia is a common clinical situation in male patients with advanced chronic liver disease. The aim of the study was to assess the efficacy and safety of testosterone replacement on muscle strength, bone mineral density (BMD), body composition and gynecomastia in hypogonadal men with liver cirrhosis. METHODS Sixteen hypogonadal male cirrhotic patients were included and twelve completed the study. Abdominal USG and/or MRI were performed to exclude hepatocellular cancer. Testogel 50mg/day was administered for 6 months. Liver enzymes, hormone profiles and muscle strength were evaluated monthly. Body composition parameters, BMD and gynecomastia were evaluated before and after 6 months. RESULTS Serum free testosterone level was higher (20.13 ± 10.06 pmol/L; 57.26 ± 39.56 pmol/L, P=0.002) after treatment. Testosterone replacement resulted in an increase in muscle strength (34.03 ± 7.24 kg; 39.18 ± 5.99 kg, P<0.001), the subscapular site subcutaneous fat tissue (P=0.012) and the sum of the four regions (P=0.04). Subareolar breast tissue was lower (28.83 ± 17.18 mm; 15.00 ± 6.74 mm, P=0.007) after treatment. No significant adverse effects were detected. DISCUSSION Testosterone gel 50mg/day raises free testosterone to values below supraphysiological levels in cirrhotic men. Transdermal testosterone replacement improves muscle strength, ameliorates gynecomastia, alters body fat distribution and causes upper body adiposity in hypogonadal men with cirrhosis. Application of testosterone gel, which undergoes no hepatic first-pass metabolism, seems as a safe and well-tolerated agent in liver cirrhosis as compared to other anabolic steroids, which may be associated with various adverse events.

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Mehmet Yucesoy

University of Birmingham

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