Biomarkers of oxidative stress in saliva of sheep: Analytical performance and changes after an experimentally induced stress
2019
Peres Rubio, Camila | Contreras-Aguilar, Maria Dolores | Quiles, A. | López-Arjona, Marina | Cerón, J.J. | Martínez-Subiela, Silvia | Hevia, M.L. | Escribano Tortosa, Damián | Tecles, Fernando | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU:: Medicina y Cirugía Animal
© 2018 Elsevier Ltd . This document is the published version of a published work that appeared in final form in Research in Veterinary Science . To access the final edited and published work see: https://doi.org/10.1016/j.rvsc.2018.12.015
Показать больше [+] Меньше [-]Oxidative stress can affect animal's health and the quality of its final products. The oxidative status can be evaluated by the measurement of both oxidant and antioxidant biomarkers. The use of saliva as a sample is preferable to blood, as individuals with limited training can collect it easily and non-invasively with minimal stress to the animal. The aim of this study was to perform an analytical validation of automated assays of the ferric reducing ability of plasma (FRAP), the cupric reducing antioxidant capacity (CUPRAC), the Trolox equivalent antioxidant capacity (TEAC) and uric acid as antioxidant biomarkers and of the advanced oxidation protein products (AOPP) and hydrogen peroxide (H2O2) as oxidant biomarkers in saliva samples of sheep, and to evaluate their possible changes after stress induced by shearing. All assays produced acceptable results in the analytical validation, from which it can be concluded that oxidative stress biomarkers such as FRAP, CUPRAC, TEAC, uric acid and AOPP and H2O2 can be measured in sheep saliva. In addition, acute stress due to shearing could produce an oxidative stress response in sheep and subsequently increase antioxidants in order to protect cells from damage.
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