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EREN, FATİH

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EREN

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FATİH

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2012 - 20132
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Author: ATUĞ, ÖZLEN × Subject: METABOLIC SYNDROME ×

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    Serum osteopontin levels as a predictor of portal inflammation in patients with nonalcoholic fatty liver disease
    (ELSEVIER SCIENCE INC, 2013) EREN, FATİH; Yilmaz, Yusuf; Ozturk, Oguzhan; Alandab, Yesim Ozen; Senates, Ebubekir; Colak, Yasar; Doganay, Hamdi Levent; Coskunpinar, Ender; Oltulu, Yasemin Musteri; Eren, Fatih; Atug, Ozlen; Tuncer, Ilyas; Imeryuz, Nese
    Background: Osteopontin is a secreted phosphorylated glycoprotein that is expressed by a variety of cell types and that mediates numerous and diverse biological functions. Osteopontin knockout mice are protected from obesity-induced hepatic steatosis. In the present study, we sought to investigate whether serum osteopontin concentrations are associated with liver histology in patients with nonalcoholic fatty liver disease. Methods: Serum levels of osteopontin were measured by enzyme-linked immunosorbent assay in 179 Well-characterized patients with nonalcoholic fatty liver referred for liver histology and 123 control subjects. Results: Serum osteopontin levels were markedly higher in patients with nonalcoholic fatty liver disease than in controls (p < 0.001). Multivariable analysis showed that osteopontin levels were strongly and independently associated with both portal inflammation (beta = 0.294, p < 0.01) and serum aminotransferase levels (aspartate aminotransferase: beta = 0.295, p < 0.01; alanine aminotransferase; beta = 0.285, p < 0.01). Conclusion: In summary, these data demonstrate that serum levels of osteopontin are elevated in nonalcoholic fatty liver disease and are a significant independent predictor of portal inflammation in this clinical entity. (C) 2012 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.
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    Preliminary evidence of a reduced serum level of fibroblast growth factor 19 in patients with biopsy-proven nonalcoholic fatty liver disease
    (PERGAMON-ELSEVIER SCIENCE LTD, 2012) EREN, FATİH; Eren, Fatih; Kurt, Ramazan; Ermis, Fatih; Atug, Ozlen; Imeryuz, Nese; Yilmaz, Yusuf
    Objectives: We sought to determine whether serum concentrations of fibroblast growth factor 19 (FGF19) - an ileum-derived enterokine which plays a role in the control of glucose and lipid homeostasis - are altered in patients with biopsy-proven nonalcoholic fatty liver disease (NAFLD). Design and methods: Serum levels of FGF19 were measured using enzyme-linked immunosorbent assay in 91 patients with biopsy-proven NAFLD and 74 controls. Results: FGF19 levels were significantly lower in patients with biopsy-proven NAFLD (median: 130 pg/mL) than in controls (median: 210 pg/mL, P<0.001). Serum FGF19 levels were significantly but modestly associated with hepatocyte ballooning scores in univariate analysis (r = -0.25. P<0.05) but not after adjustment for potential confounders (beta = -0.18; t = 1.78, P = 0.08). Conclusions: This pilot study suggests that serum FGF19 levels are decreased in patients with NAFLD but are not independently associated with liver histology findings. (C) 2012 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.