Selenium is a trace element, nutritionally classified as essential micronutrient, involved in maintaining the correct function of several enzymes incorporating the selenocysteine residue, namely the selenoproteins. The human selenoproteome including 25 proteins is here extensively described. The most relevant selenoproteins, including glutathione peroxidases, thioredoxin reductases and iodothyronine deiodinases are required for the proper cellular redox homeostasis as well as for the correct thyroid function, thus preventing oxidative stress and related diseases. This review summarizes the main advances on oxidative stress with a focus on selenium metabolism and transport. Moreover, thyroid-related disorders are discussed, considering that the thyroid gland contains the highest selenium amount per gram of tissue, also for future possible therapeutic implication
Silvestrini, A., Mordente, A., Martino, G., Bruno, C., Vergani, E., Meucci Calabrese, E., Mancini, A., The Role of Selenium in Oxidative Stress and in Nonthyroidal Illness Syndrome (NTIS): an overview, <<CURRENT MEDICINAL CHEMISTRY>>, 2020; 27 (3): 423-449. [doi:10.2174/0929867325666180201111159] [http://hdl.handle.net/10807/120833]
The Role of Selenium in Oxidative Stress and in Nonthyroidal Illness Syndrome (NTIS): an overview
Silvestrini, Andrea;Mordente, Alvaro;Meucci Calabrese, Elisabetta;Mancini, Antonio
2020
Abstract
Selenium is a trace element, nutritionally classified as essential micronutrient, involved in maintaining the correct function of several enzymes incorporating the selenocysteine residue, namely the selenoproteins. The human selenoproteome including 25 proteins is here extensively described. The most relevant selenoproteins, including glutathione peroxidases, thioredoxin reductases and iodothyronine deiodinases are required for the proper cellular redox homeostasis as well as for the correct thyroid function, thus preventing oxidative stress and related diseases. This review summarizes the main advances on oxidative stress with a focus on selenium metabolism and transport. Moreover, thyroid-related disorders are discussed, considering that the thyroid gland contains the highest selenium amount per gram of tissue, also for future possible therapeutic implication
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