• Berat Ebik, Ferhat Bacaksiz, Ali Uzel, Mustafa Zanyar Akkuzu, Ahmet Yavuz, Huseyin Kacmaz, Nihat Aslan, Medeni Arpa, Salim Neselioglu, and Ozcan Erel.
• University of Health Sciences, Diyarbakır Gazi Yasargil Education and Research Hospital, Division of Gastroenterology - Diyarbakır, Turkey.
• Rev Assoc Med Bras (1992). 2024 Jan 1; 70 (4): e20231120e20231120.

ObjectiveWe aimed to examine the effect of remission status on thiol-disulfide homeostasis in celiac patients and thus to indirectly determine the effect of oxidative stress and inflammation caused by non-compliance with the diet.MethodsBetween February 2019 and December 2021, 117 patients diagnosed with celiac disease were included in this prospective randomized and controlled study. In addition to routine tests of celiac patients, thiol and disulfide measurements were made from the blood both at the beginning of the study and at the end of the first year.ResultsWhile 52 of the patients (44.4%) were in remission, 65 patients (55.6%) were not. There was an evident increase in native thiol levels of the patients who were initially not in remission but went into at the end of the first year (347.4±46.7 μmol/L vs. 365.3±44.0 μmol/L; p=0.001). Mean plasma disulfide levels of patients with celiac going into remission became reduced in the first year from the level of 14.5±5.1 μmol/L down to 8.9±4.2 μmol/L (p<0.001). In celiac patients who entered remission, disulfide and anti-tissue transglutaminase immunoglobulin A levels decreased in a correlation (r=0.526; p<0.001).ConclusionNot being in remission in celiac disease leads to increased oxidative stress, and thiol-disulfide homeostasis is an indirect indicator of this. Additionally, providing remission in celiac patients reduces oxidative stress.

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