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Author: search.filters.author.Uzun, HafizeSubject: search.filters.subject.ghrelin

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    Evaluation of the relationship between serum ghrelin levels and cancer cachexia in patients with locally advanced nonsmall-cell lung cancer treated with chemoradiotherapy
    (WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2020-01-01) Uysal, Pelin; Afsar, Cigdem Usul; Sozer, Volkan; Inanc, Berrin; Agaoglu, Fulya; Gural, Zeynep; Fazlioglu, Nevin Gural; Cuhadaroglu, Caglar; Uzun, Hafize
    Background: Ghrelin plays a role in mechanisms related to cancer progression - including cell proliferation, invasion and migration, and resistance to apoptosis in the cell lines from several cancers. We investigated the role of ghrelin levels in cancer cachexia-anorexia in patients with locally advanced nonsmall-cell lung cancer (NSCLC) treated with chemoradiotherapy (CRT). Materials and Methods: This study involved 84 NSCLC patients who had received concomitant CRT. Blood ghrelin levels were compared before and 3 months after CRT. Meanwhile, changes in body weight of the patients were also investigated with changes in ghrelin levels before and after CRT. Results: Ghrelin levels were significantly decreased in line with changes in patients' weights in patients receiving CRT (P < 0.001). Serum albumin levels and inflammatory-nutritional index were significantly decreased after radiotherapy (RT) (3.01 0.40 g/dL, 0.38 +/- 0.20) when compared with its baseline levels (3.40 +/- 0.55 g/dL,P < 0.001
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    Evaluation of ghrelin and leptin in chronic obstructive pulmonary disease
    (WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2019-01-01) Uysal, Pelin; Uzun, Hafize
    OBJECTIVE: Recent studies suggest an important role for ghrelin and leptin in pathogenesis of inflammatory respiratory diseases. Therefore, the present study aimed to investigate ghrelin and leptin levels in the circulation that might be associated with the development of obstruction. METHODS: Stable chronic obstructive pulmonary disease (COPD) patients (n= 119) and matched healthy controls (n = 27) were recruited. The COPD patients were classified into four groups (A, B, C, and D) according to the Revised Global Initiative for Chronic Obstructive Lung Disease guidelines. RESULTS: Compared to controls, significantly decreased leptin and ghrelin levels were observed in all COPD patient groups. Plasma ghrelin concentration was higher in Group A (P < 0.001), Group B (P < 0.001), and Group C (P < 0.05) when compared with the Group D. Plasma leptin concentration was significantly decreased in Group D patients when compared with Group A (P < 0.001) and Group B (P< 0.001). Ghrelin levels were positively correlated with forced expiratory volume in 1 s (FEV1) (r= 0.822