Dr. Jarosław Nuszkiewicz is an Assistant Professor at the Department of Medical Biology and Biochemistry, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Poland. His extensive expertise spans several key areas, including clinical and medical biochemistry, biomarkers, oncology, neurodegenerative diseases, oxidative stress, redox balance, endocrine activity of adipose tissue (specifically adipokines), and laboratory medicine.