Person: EREN, FATİH
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
EREN
First Name
FATİH
Name
14 results
Search Results
Now showing 1 - 10 of 14
Publication Open Access Evaluation of the Association between Programmed Cell Death-1 Gene Polymorphisms and Hepatocellular Carcinoma Susceptibility in Turkish Subjects. A Pilot Study(MEDICAL UNIV PRESS, 2020-10-27) EREN, FATİH; Demirci, Abdullah Fatih; Demirtas, Coskun Ozer; Eren, Fatih; Yilmaz, Demet; Keklikkiran, Caglayan; Ozdogan, Osman Cavit; Gunduz, FeyzaBackground & Aims: Programmed cell death-1 (PD-1) has a vital role in regulating T-cell function, and immune escape mechanism of cancer cells. It was shown that there could be a relationship between single nucleotide polymorphisms (SNPs) in the PD-I gene and susceptibility to hepatocellular carcinoma (MCC) based on various studies. We aimed to investigate the role of three SNPs within the PD-1 gene in susceptibility to HCC in the Turkish population. Methods: Single nucleotide polymorphisms of PD-1.1, 1.5, and 1.6 were genotyped by using TaqMan Allelic Discrimination Assays in blood samples of 137 HCC and 136 control subjects, matched for age and gender. The genotype, allele and haplotype frequencies were compared in HCC and control groups using logistic regression analysis. Results: Genotype distributions of PD-1.1, PD-1.5 and PD-1.6 SNPs were in Hardy-Weinberg equilibrium. No significant difference was observed in the genotype distribution of PD-I.1, PD-1.5 and PD-1.6 polymorphisms among gender and age-matched HCC (M/F: 96/41; mean age: 61.4 +/- 11.7 years) and control group (M/F: 94/42; mean age: 61.4 +/- 10.1). In the haplotype analysis of P1)-1.1/PD-1.5/PD-1.6, no significant difference was found among HCC and control group adjusted for sex and age (all p values>0.1). Conclusion: Our findings, firstly reporting the association of PD-1.5 polymorphism with I ICC, and PD-I.1 and PD-1.6 with HCC in the Turkish population, suggest that PD-1 polymorphisms are not predisposing factors for HCC development. Future studies with larger sample sizes and different ethnic populations are required to validate our findings.Publication Open Access Adrenomedullin in cirrhotic and non-cirrhotic portal hypertension(2003) EREN, FATİHPublication Open Access NFS Is Not a Marker of Nonalcoholic Fatty Liver Disease Per Se: What Is the True Relationship With CAD Complexity?(SAGE PUBLICATIONS INC, 2020-01) EREN, FATİH; Yilmaz, Yusuf; Eren, FatihPublication Open Access SHBG Gene Polymorphism (rs1799941) Associates with Metabolic Syndrome in Children and Adolescents(PUBLIC LIBRARY SCIENCE, 2015-02-03) EREN, FATİH; White, Marquitta J.; Eren, Fatih; Agirbasli, Deniz; Williams, Scott M.; Agirbasli, MehmetBackground Metabolic syndrome (MetS) is a complex disorder characterized by coexistence of several cardiometabolic (CM) factors, i.e. hyperlipidemia, obesity, high blood pressure and insulin resistance. The presence of MetS is strongly associated with increased risk of cardiovascular disease (CVD). The syndrome was originally defined as an adult disorder, but MetS has become increasingly recognized in children and adolescents. Methods Genetic variants influence biological components common to the CM factors that comprise MetS. We investigated single locus associations between six single nucleotide polymorphisms (SNPs), previously shown to modulate lipid or sex hormone binding globulin (SHBG) levels, with MetS in a Turkish pediatric cohort (37 cases, 323 controls). Results Logistic regression analysis revealed a significant association between rs1799941, located in SHBG, and MetS (OR = 3.09, p-value = 0.006). The association with MetS remained after sequential adjustment for each CM factor included in the syndrome definition, indicating that the identified association is not being driven by any single trait. A relationship between rs1799941 and SHBG levels, was also discovered, but it was dependent on MetS status. In control subjects, the A allele of rs1799941 associated with a significant increase in SHBG levels (p = 0.012), while in cases there was no association between rs1799941 and SHBG levels (p = 0.963). Conclusions The significant association between rs1799941 and MetS in children is not contingent on any single CM trait. Additionally, the presence of MetS may abrogate effect of rs1799941 polymorphism on SHBG levels in children.Publication Open Access Association between bactericidal/permeability increasing protein (BPI) gene polymorphism (Lys216Glu) and inflammatory bowel disease(ELSEVIER SCIENCE BV, 2011-02) EREN, FATİH; Akin, Hakan; Tahan, Gulgun; Ture, Filiz; Eren, Fatih; Atug, Ozlen; Tahan, Veysel; Hamzaoglu, Ismail; Imeryuz, Nese; Tozun, Nurdan; Hamzaoglu, Hulya OverBackground: Increasing Increasing evidence suggests that innate immune system may have a key role in the pathogenesis of the inflammatory bowel disease (IBD). Bactericidal/permeability increasing protein (BPI) has an important role in the recognition and neutralization of gram-negative bacteria by host innate immune system. The polymorphism on BPI gene called Lys216Glu is on the suspected list of IBD pathogenesis. Methods: We studied the Lys216Glu polymorphism on BPI gene, in a Turkish IBD patient population. A total of 238 IBD patients; 116 Crohn's disease (CD) and 122 ulcerative colitis (UC), besides 197 healthy controls were included in this study. Results: The Glu/Glu genotype and allele frequencies were found to be statistically higher compared to healthy control group not only in CD patients [P: 0.03, OR: 1.87 (CI 95% 1.02-3.42) and P: 0.00001 (OR: 2.07 CI 95% 1.47-2.91) respectively] but also in UC patients [P: 0.0002, OR: 2.71 (CI 95% 1.53-4.80) and P: 0.00002 (OR: 2.71 CI 95% 1.53-4.80) respectively]. Conclusions: BPI polymorphism (Lys216Glu) is associated both to CD and UC. Our findings differ from the two Western European studies; one without any association and the other indicating an association only with CD. Our study is the first one reporting a novel association between BPI gene mutation (Lys216Glu) and UC. (C) 2010 European Crohn's and Colitis Organisation. Published by Elsevier B.V. All rights reserved.Publication Open Access Relationship between nutritional status, anthropometric measurements and dietary inflammatory index in professional football players(2023-03-01) EREN, FATİH; Kenger E. B., EREN F., GÜNEŞ F. E.Objective: This study was carried out to evaluate the relationship between the nutritional status, anthropometric measurements and dietary inflammatory index (DII) of professional football players exposed to long-term intense exercise. Method: Twenty-one professional male football players with a mean age of 26.00 +/- 5.69 years playing in the same club participated in the study. The nutritional status of the football players was evaluated with 3-day food consumption record (2 days of training and 1 match day). DII scores were calculated using data on 34 nutrient/nutritional ingredients obtained from the food consumption records. Body fat percentage in the anthropometric evaluations were determined by caliper and skinfold thicknesses. Results: The median DII scores of the football players were found as - 3.42 (-9.95 - 0.95), and their nutritional intake were found to be anti-inflammatory. When the relationship between the DII scores of the football players and their anthropometric measurements was examined, a positive and significant correlation (R: .476; p: .029) was found between their DII score and their abdominal adiposity. However, there was no significant correlation (p> .05) between the DII scores and the other anthropometric measurements. In addition, there was a significant negative correlation (R: - .468; p: .032) between fiber consumption and abdominal adiposity, and a significant positive correlation between carbohydrate and fat consumption and body weight (respectively R= .730 p= .000; R= .526 p= .014). Conclusion: It has been revealed that the football players participating in our study generally have an anti-inflammatory diet. It was also found that abdominal adiposity was higher in the football players with high DII scores.Publication Open Access Association of ERAP1, IL23R and PTGER4 Polymorphisms with Radiographic Severity of Ankylosing Spondylitis(2017-01-31) ERZİK, CAN; Ozen, Gulsen; Deniz, Rabia; Eren, Fatih; Erzik, Can; Unal, Ali Ugur; Yavuz, Sule; Aydin, Sibel Zehra; Inanc, Nevsun; Direskeneli, Haner; Atagunduz, PamirBackground: Radiographic severity of ankylosing spondylitis (AS) shows such great variance that some patients never develop syndesmophytes throughout the entire disease span, whereas some develop bamboo spine relatively early. Objective: To study the association between ERAP1 , IL23R and PTGER4 single nucleotide polymorphisms (SNPs) and radiographic severity in AS patients. Methods: rs27044 and rs30187 ( ERAP1 ), rs11209032 ( IL23R ) and rs10440635 ( PTGER4 ) SNPs were genotyped in 235 AS patients fulfilling the modified New York criteria. Patients were classified as mild- and severe-AS according to modified Stoke AS spinal score (mSASSS). Mild-AS is defined as having mSASSS of “0” following at least 10 years of disease duration. Severe-AS is defined as having mSASSS of >20 (patients with mild vertebral changes ( i.e. squaring or erosions) were omitted for clear stratification) regardless of disease duration. Results: The genotype distributions and allele frequencies of ERAP1 rs27044 and rs30187, IL23R rs11209032 and PTGER4 rs10440635 SNPs were similar in mild- (n=171, mSASSS=0, 55.6% HLA-B27 positive) and severe-AS patients (n=64, mSASSS=48.5±17.8, 73.4% HLA-B27 positive). After adjustment for clinical differences between groups (gender, disease duration, HLA-B27 and smoking status) by logistic regression analysis, none of the alleles in the investigated SNPs were found to be associated with radiographic severity of AS. Conclusion: In radiographically well-categorized AS patients, ERAP1 rs27044 and rs30187, IL23R rs11209032 and PTGER4 rs10440635 SNPs are not found to be associated with radiographic severity of AS.Publication Open Access The relationship between polyphenols and miRNAs: A novel therapeutic strategy for metabolic associated fatty liver disease(2021-05-01) EREN, FATİH; GÜNEŞ, FATMA ESRA; Bayram H. M., EREN F., Gunes F. E.Metabolic-associated fatty liver disease (MAFLD) is a public health problem that is increasingly recognized, currently affecting up to a quarter of the world\"s adult population. Although a biopsy is the current gold standard to diagnose MAFLD, there are potentially serious complications, making it inadequate. Thus far, noninvasive methods have not been able to determine the stage and the subtype of MAFLD. The development and prognosis of MAFLD are modulated by epigenetic factors, including microRNAs (miRNAs), which may be potential biomarkers for MAFLD. Polyphenols, found in many fruits and vegetables, may be useful, as they alter gene expression with epigenetic factors, such as miRNAs. This review presents an overview of the relationship between polyphenols and miRNAs in MAFLD. The literature suggests that miRNAs could be used as a diagnostic method for MAFLD, especially miRNA-122 and miRNA-34a. However, though it has been demonstrated that polyphenols may contribute to improving MAFLD, to our knowledge, no study to date has shown the relationship between polyphenols and miRNAs in MAFLD. The exact mechanisms of polyphenols on miRNAs in MAFLD remain unclear. Future studies may provide hope for diet therapy for MAFLD patients as well as the development of polyphenol-related foods or drugs that target miRNAs to treat MAFLD.Publication Open Access Serum levels of soluble receptor for advanced glycation endproducts (sRAGE) are higher in ulcerative colitis and correlate with disease activity(ELSEVIER SCIENCE BV, 2011-10) EREN, FATİH; Yilmaz, Y.; Yonal, O.; Eren, F.; Atug, O.; Hamzaoglu, H. OverInteraction of the receptor for advanced glycation endproducts (RAGE) with its ligands results in expression of inflammatory mediators, activation of NF-kappa B, and induction of oxidative stress, all of which have been implicated in the pathogenesis of inflammatory bowel diseases (IBD). Soluble receptor for advanced glycation endproducts (sRAGE) has recently emerged as a reliable biomarker of inflammation in numerous RAGE-mediated disorders. Objective: To assess sRAGE levels in adult patients with IBD. Method: Serum was collected from adult patients with Crohn's disease (CD, 56 patients), ulcerative colitis (UC, 60 patients), and healthy controls (HC, 113 subjects). Levels of sRAGE were determined by enzyme-linked immunosorbent assay. Results: Serum sRAGE levels were elevated in IBD compared to HC and were higher in UC patients compared to CD and HC. Levels of sRAGE were significantly higher in the serum of UC patients with active disease compared to patients with inactive disease, but no association with the Montreal Classification was evident. Serum sRAGE was lower in CD patients with biological therapies. Conclusions: These findings suggest that serum levels of sRAGE are altered in patients with intestinal inflammation and may reflect distinct immunoinflammatory pathogenesis of UC and (C). 2011 European Crohn's and Colitis Organisation. Published by Elsevier B.V. All rights reserved.Publication Open Access The role of myocardial performance index and Nt-proBNP levels as a marker of heart dysfunction in nonalcoholic cirrhotic patients(2022-01-01) TOKAY TARHAN, SENA; EREN, FATİH; FAK, ALİ SERDAR; TOKAY TARHAN S., Yilmaz Enc F., EREN F., FAK A. S., Ozdogan O.Objective: Cardiac dysfunction has been reported in both cirrhotic and alcoholic patients. Our aim was to determine the relation of serum N-terminal pro-B-type natriuretic peptide (Nt-proBNP) levels to myocardial performance index (MPI) and disease severity in nonalcoholic cirrhotic patients. Patients and Methods: In this prospective study including 25 cirrhotic patients and 27 healthy controls, MPI was assessed by pulsedwave tissue Doppler imaging (PW-TDI). The disease severity was determined by Child–Turcotte–Pugh (CTP ) and model for endstage liver disease (MELD) scores. Results: There were no statistically significant differences in MPI levels between patients and controls (p< 0.246). Nt-proBNP levels (p< 0.0003), cardiac output (CO) (p< 0.0002), left ventricular end-systolic (LVES) volume (p< 0.031) and QT interval (p< 0.0001) increased and left ventricular systolic function was normal in all cirrhotic patients when compared to controls. Nt-proBNP levels were positively correlated with MELD scores (p< 0.0001, r= 0.59), QT duration (p< 0.0001, r= 0.59), CO (p= 0,001, r= 0.44), right atrial (RA) area (p= 0.026, r= 0.31) and negatively correlated with diastolic BP (p= 0.015, r= – 0.34). Conclusion: We conclude that in nonalcoholic cirrhotic patients, left ventricular MPI and systolic function were normal. Nt-proBNP levels were correlated with the disease severity and hyperdynamic circulation.