Yazar "Acara, Ahmet Cagdas" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    The antioxidant role of agomelatine and gallic acid on oxidative stress in STZ induced type I diabetic rat testes
    (Elsevier France-Editions Scientifiques Medicales Elsevier, 2017) Yigitturk, Gurkan; Acara, Ahmet Cagdas; Erbas, Oytun; Oltulu, Fatih; Yavasoglu, Nefise Ulku Karabay; Uysal, Aysegul; Yavasoglu, Altug
    Diabetes is a multisystem disorder and its effects are observed on the reproductive system. One of the main causes of testicular tissue damage is diabetes-induced overproduction of reactive oxygen species and glycated end products. The main objectives of this study were to investigate the possible effects of agomelatine (AG) and gallic acid (GA) in suppressing oxidative stress in Type I diabetes induced testicular damage. A total of 28 adult male rats were included in the study. Diabetes was induced by intraperitoneal injection of streptozocin (STZ, 55 mg/kg) to 21 rats, which were then randomly assigned to 3 groups; 1 mL saline solution was given to the diabetes + saline group by oral gavage, 20 mg/kg/day oral AG was given to the diabetes + AG group, and 20 mg/kg/day oral GA was given to the diabetes + GA group for 4 weeks. Tumor necrosis factor alpha (TNF alpha), nitric oxide synthase 2 (NOS2), fibronectin and vascular endothelial growth factor (VEGF) were used for the investigation of inflammation, fibrosis and vascular structures. The terminal-deoxynucleoitidyl-transferase mediated nick end-labeling assay (TUNEL) was used to detect apoptosis. Testicular tissue total antioxidant capacity values were tested by biochemical analysis. AG treatment showed an improvement on biochemical parameters and histopathological appearance on the rat testes. GA showed dose-related regenerative effects on biochemical parameters. Histologically, a minimal healing effect was determined on the testes damage. In conclusion, it was observed that AG is a potentially beneficial agent for reducing testicular damage by decreasing oxidative stress level. However, GA was seen to have a poor therapeutic effect. (C) 2016 Elsevier Masson SAS. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Association of decreased C1q/tumor necrosis factor- related protein-5 levels with metabolic and hormonal disturbance in polycystic ovary syndrome
    (Galenos Yayincilik, 2019) Calan, Mehmet; Alan, Murat; Alarslan, Pinar; Kocabas, Gokcen Unal; Bozkaya, Giray; Acara, Ahmet Cagdas; Aslanipour, Behnaz; Fenercioglu, Ozge; Isil, Ahmet Murat; Guler, Asli
    Objective: C1q/tumor necrosis factor-related protein-5 (CTRP5) is a novel peptide hormone involved in the metabolism of energy regulation. Polycystic ovary syndrome (PCOS), which is a reproductive and metabolic disorder, is associated with insulin resistance. The aim of the current study was to compare circulating levels of CTRP5 in women with and without PCOS and to investigate possible associations between CTRP5 and metabolic-hormonal parameters. Material and Methods: The present cross-sectional study contained 80 women with PCOS and 80 age and body mass index-matched women without PCOS. Circulating levels of CTRP5 were calculated using an enzyme-linked immunosorbent assay. We also measured hormonal and metabolic parameters. Results: Patients with PCOS had lower levels of circulating CTRP5 compared with women without PCOS (6.90 +/- 2.64 vs 11.73 +/- 3.66 ng/mL, p<0.001). CTRP5 was negatively correlated with insulin resistance, free-androgen index, and body mass index in both the PCOS and control groups. Moreover, patients with PCOS who had insulin resistance showed lower circulating CTRP5 levels compared with those without insulin resistance. In both the control and PCOS groups, overweight subjects had lower circulating levels of CTRP5 compared with participants of normal weight. Logistic regression analyses indicated that subjects in the lowest tertile for CTRP5 level had higher risk for PCOS compared with those in the highest tertile of CTRP5. Conclusion: Decreased circulating levels of CTRP5 were associated with higher risk of PCOS, as well as having metabolic disturbance among women with PCOS.