Wos İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/11727/4807
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Item Epoetin receptor status may alter the outcomes in head and neck cancers treated with radiotherapy and darbepoetin-alpha(2019) Topkan, Erkan; Yildirim, Berna Akkus; 0000-0001-8120-7123; 30414758; AAG-2213-2021Item Antiproliferative and anti-apoptotic effect of astaxanthin in an oxygen-induced retinopathy mouse model(2019) Kucukoduk, Ali; Helvacıoglu, Fatma; Haberal, Nihan; Dagdeviren, Atilla; Bacanli, Didem; Yilmaz, Gursel; Akkoyun, Imren; 0000-0001-8990-8282; 30851776; P-2877-2014Objective: To evaluate the impact of intravitreal (IV) and intraperitoneal (IP) astaxanthin (AST) injections on neovascular development (ND), retinal morphology, and apoptotic activity in a C57BL/6J mouse model with hyperoxia-induced retinopathy (HIR). Design: C57BL/6J mouse model. Methods: Two negative control groups (n = 6 each; one of which received IV sterile dimethyl sulfoxide [DMSO]) of C57BL/6J-type mice were exposed to room air. The HIR groups included 36 C57BL/6J-type mice exposed to 75% +/- 2% oxygen from postnatal day (PD) 7 to PD 12. On PD 12, these mice were randomized into 6 groups (n = 6 each): 2 HIR control groups (one of which received IV-DMSO), 2 IV-AST groups (10 and 100 mu g/mL), and 2 IP-AST groups (0.5 and 5 mg/kg). We measured ND by counting neovascular tufts in cross sections and examined histological, ultrastructural changes via light and electron microscopy. Apoptosis was detected using terminal deoxynucleotidyl transferase-mediated nick end-labeling. Results: No ND was detected in the negative control groups. ND levels were not significantly different between high- and low-dose AST for either means of administration. However, ND levels were significantly lower in the AST groups, regardless of delivery, compared to the control groups. The means of delivery (IP versus IV) also yielded significant differences in ND. The incidence of mitochondrial dysmorphology and apoptosis were lower in groups receiving AST. Conclusions: AST seems to suppress ND and has anti-apoptotic activity in the HIR mouse model.Item Exosomal IncRNA-p21 levels may help to distinguish prostate cancer from benign disease(2015) Isin, Mustafa; Uysaler, Ege; Ozgur, Emre; Koseoglu, Hikmet; Sanli, Oner; Yucel, Omer B.; Gezer, Ugur; Dalay, Nejat; 25999983Exosomes are membranous vesicles containing various biomolecules including IncRNAs which are involved in cellular communication and are secreted from many cells including cancer cells. In our study, investigated the exosomal GAS5 and lincRNA-p21 IncRNA levels in urine samples from 30 patients with prostate cancer (PCa) and 49 patients with benign prostatic hyperplasia. Quantification of IncRNA molecules was performed by real-time PCR. We observed a significant difference in the exosomal lincRNA-p21 levels between PCa and BPH patients whereas the GAS5 levels did not reveal a difference. Our data suggest that the discriminative potential of exosomal lincRNA-p21 levels may help to improve the diagnostic prediction of the malignant state for patients with PCa.Item Myelodysplastic features and cellular senescence in autoimmune disorders: a pilot study on patients with collagen tissue disorders and immune thrombocytopenic purpura(2015) Olcay, Lale; Billur, Deniz; Erdemli, Esra; Baskin, Sidika Esra; Balci, Havva Fatma; Yetgin, Sevgi; 26281349