REVIEWS

Role of leptin as a factor regulating bone metabolism Batorski M., et al. [ summary ] 387

The European hedgehog (Erinaceus europaeus) as a reservoir of zoonotic ... Brożyna R., et al. [ summary ] 394

ORIGINAL PAPERS

Evaluation of Oxidant, Antioxidant, Interleukin, and Biochemical ... Ertaş F., et al. [ summary ] 399

Investigation of oxidant and antioxidant parameters in fetal tissue homogenizates ... Kızıltepe S., et al. [ summary ] 407

Economic costs of 11 years of ASF in Poland Pepliński B., et al. [ summary ] 413

Co-occurrence of Euclinostomum heterostomum and bacterial pathogens in the fish ... Guz L. et al. [ summary ] 420

Act on Animal Protection in Research and Education, 2015, and the role of ... Dzikowski A., et al. [ summary ] 425

Kazimierz Lubecki (1880-1939) – pioneer of the humanitarian protection ... Smykowski K. [ summary ] 433