Abstract

Aim: The body's antioxidant system processes rely on thiol-disulfide equilibrium to function correctly. The purpose of this study was to look into dynamic thiol/disulfide homeostasis (TDH) as an endogenous antioxidant indicator in febrile neutropenic (FN) children with acute lymphoblastic leukemia (ALL).
Materials and methods: The study included 66 acute lymphoblastic leukemia patients, including 33 with FN and 33 controls. Both groups were compared for TDH and ischemia-modified albumin (IMA). TDH parameters were assessed using a unique spectrophotometric approach disclosed earlier by Neşelioğlu and Erel.
Results: Total thiol, native thiol, disulfide, and native thiol/total thiol levels were significantly lower in patients with FN than in the controls (p< 0.05). Disulfide/total thiol, disulfide/native thiol, and IMA levels were significantly higher in the FN group than in controls (p

Key words: Thiol/disulfide homeostasis, oxidative stress, febrile neutropenia, acute lymphoblastic leukemia