Author

A. Yurttaş

3 papers indexed here

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Open access Sep 2026

Method Comparison of PT, INR, and aPTT Results Obtained Using Two Coagulation Analyzers in Routine Laboratory Practice

Background/Objectives: Prothrombin time (PT), international normalized ratio (INR), and activated partial thromboplastin time (aPTT) are routinely used coagulation assays, and analyzer–reagent differences may affect result comparability. This study evaluated analytical comparability between the Sysmex CS-2500 System us...

Betül Özbek Kurtul, Bağnu Dündar, G. Gündoğan et al. · Diagnostics · 0 citations

Open access Sep 2026

Melatonin Differentially Modulates Temozolomide Responses in Glioblastoma and Endothelial Cells: Associations with Global DNA Methylation and Cortistatin Levels

Glioblastoma (GBM) is the most aggressive primary brain tumor in adults and remains highly resistant to current therapeutic strategies. Temozolomide (TMZ) is a standard chemotherapeutic agent used in GBM treatment; however, intrinsic and acquired resistance limits its efficacy. This study investigated treatment-associa...

G. Gundogan, A. Yurttaş, Y. Oltulu et al. · Current Issues in Molecular... · 0 citations

Review Open access Aug 2026

Age and Follicle-Stimulating Hormone as Variables Independently Associated with Serum Anti-Müllerian Hormone in Women Attending a Tertiary Gynaecology Clinic: A Retrospective Cross-Sectional Study Using Censoring-Aware Modelling

Objective: Anti-Müllerian hormone (AMH) is the most widely used biochemical marker of ovarian reserve, but its associations with other reproductive hormones are usually examined one hormone at a time and without accounting for values reported at the assay floor. This study examined the associations between serum AMH an...

Mete Hakan Karalök, Bağnu Dündar, Ayhan Parmaksız et al. · Metabolites · 0 citations