Dr. Sitar graduated from Istanbul University Cerrahpaşa Faculty of Medicine and completed residency in medical biochemistry at the same institution. He fulfilled mandatory state service at the Artvin State Hospital of the Türkiye Ministry of Health. Dr. Sitar contributed to the establishment of several medical laboratories in both the public and private sectors, and served as head of the medical biochemistry laboratory. He conducted research at Hannover Medical School in Germany in 2012 and at the University of Göttingen in 2018, focusing on mass spectrometric techniques. His research interests include aging, experimental disease modeling, oxidative stress, and chemotherapeutic drug interactions. Dr. Sitar has authored over 100 international publications, conference papers, and book chapters. He currently serves as chair of the Department of Medical Biochemistry at Istanbul Maltepe University Faculty of Medicine. He is married and has two children.