PMID- 26854840 OWN - NLM STAT- MEDLINE DCOM- 20170317 LR - 20171116 IS - 1557-9077 (Electronic) IS - 1050-7256 (Linking) VI - 26 IP - 4 DP - 2016 Apr TI - Oxidative Stress and Advanced Glycation End Products in Hashimoto's Thyroiditis. PG - 504-11 LID - 10.1089/thy.2015.0592 [doi] AB - BACKGROUND: Oxidative stress, which occurs as a result of an imbalance between free-radical production and antioxidant defense mechanisms, has been implicated in the pathogenesis of several autoimmune disorders, including thyroid diseases. Importantly, it has been correlated to thyroid dysfunction. This study investigated the changes in oxidative balance in euthyroid Hashimoto's thyroiditis (HT) by means of specific serum tests, such as derived reactive oxygen metabolites (d-ROMs) and the biological antioxidant potential (BAP) test. In addition, advanced glycation end products (AGEs) and advanced oxidation protein products (AOPPs)--compounds formed by the transformation of proteins--were evaluated as potential new markers of oxidative stress in this disease. METHODS: This study included 134 euthyroid subject: 71 newly diagnosed HT patients (63 females; M age = 38 +/- 13 years) and 63 age and sex-matched healthy controls. None of them were on thyroxine therapy. RESULTS: Serum d-ROMs were elevated, and BAP decreased in HT patients compared with controls (p < 0.001), and the two parameters were inversely correlated (r = -0.211; p = 0.027), clearly indicating an enhanced oxidative stress. Furthermore, AGE levels were higher in HT patients (M = 223.18 AU/g prot) than in controls (M = 189.636 AU/g prot; p = 0.020) and inversely correlated with BAP levels (r = -0.196; p = 0.037). In uni- and multivariate analysis, serum antithyroperoxidase antibodies were the main predictors for d-ROMs (p = 0.006), BAP (p < 0.001), and AGEs (p = 0.014), irrespective of thyrotropin and/or free thyroxine values. No differences in AOPPs levels were found between patients and controls (p = 0.923). CONCLUSIONS: Oxidants are increased and antioxidants decreased in euthyroid HT patients. As a result, the oxidative/antioxidative balance is shifted toward the oxidative side. Moreover, this study reports on a possible significant involvement of AGEs in HT, thus contributing to a better definition of the redox homoeostasis dysregulation in HT. FAU - Ruggeri, Rosaria M AU - Ruggeri RM AD - 1 Department of Clinical and Experimental Medicine, Division of Endocrinology, University of Messina , Messina, Italy . FAU - Vicchio, Teresa M AU - Vicchio TM AD - 1 Department of Clinical and Experimental Medicine, Division of Endocrinology, University of Messina , Messina, Italy . FAU - Cristani, Mariateresa AU - Cristani M AD - 2 Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina , Messina, Italy . FAU - Certo, Rosaria AU - Certo R AD - 1 Department of Clinical and Experimental Medicine, Division of Endocrinology, University of Messina , Messina, Italy . FAU - Caccamo, Daniela AU - Caccamo D AD - 3 Department of Biomedical Sciences and Morpho-Functional Imaging, University of Messina , Messina, Italy . FAU - Alibrandi, Angela AU - Alibrandi A AD - 4 Department of Economics, University of Messina , Messina, Italy . FAU - Giovinazzo, Salvatore AU - Giovinazzo S AD - 1 Department of Clinical and Experimental Medicine, Division of Endocrinology, University of Messina , Messina, Italy . FAU - Saija, Antonina AU - Saija A AD - 2 Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina , Messina, Italy . FAU - Campenni, Alfredo AU - Campenni A AD - 3 Department of Biomedical Sciences and Morpho-Functional Imaging, University of Messina , Messina, Italy . FAU - Trimarchi, Francesco AU - Trimarchi F AD - 1 Department of Clinical and Experimental Medicine, Division of Endocrinology, University of Messina , Messina, Italy . AD - 5 Accademia Peloritana dei Pericolanti, University of Messina , Messina, Italy . FAU - Gangemi, Sebastiano AU - Gangemi S AD - 6 School and Division of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina , Messina, Italy . LA - eng PT - Journal Article DEP - 20160309 PL - United States TA - Thyroid JT - Thyroid : official journal of the American Thyroid Association JID - 9104317 RN - 0 (Antioxidants) RN - 0 (Biomarkers) RN - 0 (Free Radicals) RN - 0 (Glycation End Products, Advanced) RN - 0 (Oxidants) RN - 9002-71-5 (Thyrotropin) RN - Q51BO43MG4 (Thyroxine) RN - S88TT14065 (Oxygen) SB - IM MH - Adult MH - Antioxidants/chemistry MH - Biomarkers/blood MH - Case-Control Studies MH - Female MH - Free Radicals MH - Glycation End Products, Advanced/*blood MH - Hashimoto Disease/*blood MH - Homeostasis MH - Humans MH - Male MH - Middle Aged MH - Oxidants/chemistry MH - Oxidation-Reduction MH - *Oxidative Stress MH - Oxygen/chemistry MH - Thyroid Gland/pathology MH - Thyrotropin/blood MH - Thyroxine/therapeutic use MH - Ultrasonography EDAT- 2016/02/09 06:00 MHDA- 2017/03/18 06:00 CRDT- 2016/02/09 06:00 PHST- 2016/02/09 06:00 [entrez] PHST- 2016/02/09 06:00 [pubmed] PHST- 2017/03/18 06:00 [medline] AID - 10.1089/thy.2015.0592 [doi] PST - ppublish SO - Thyroid. 2016 Apr;26(4):504-11. doi: 10.1089/thy.2015.0592. Epub 2016 Mar 9.