Selenium and thyroid autoimmunity

Roberto NegroDepartment of Endocrinology, “V. Fazzi” Hospital, Lecce, ItalyAbstract: The trace element selenium (Se) occurs in the form of the amino acid selenocysteine in selenoproteins. Selenoproteins exerts multiple physiological effects in human health, many of which...

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Autor principal: Roberto Negro
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Publicado: Dove Medical Press 2008
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spelling oai:doaj.org-article:a1e8378eef364d8fa0d235865776c0bd2021-12-02T05:17:41ZSelenium and thyroid autoimmunity1177-54751177-5491https://doaj.org/article/a1e8378eef364d8fa0d235865776c0bd2008-06-01T00:00:00Zhttp://www.dovepress.com/selenium-and-thyroid-autoimmunity-a1731https://doaj.org/toc/1177-5475https://doaj.org/toc/1177-5491Roberto NegroDepartment of Endocrinology, “V. Fazzi” Hospital, Lecce, ItalyAbstract: The trace element selenium (Se) occurs in the form of the amino acid selenocysteine in selenoproteins. Selenoproteins exerts multiple physiological effects in human health, many of which are related with regulation of reduction-oxidation processes. In fact, the selenoenzyme families of glutathione peroxidase (GPx) and thioredoxin reductase (TRx) display the ability to act as antioxidants, protecting cells from oxidative damage. Furthermore, another class of selenoproteins are the iodothyronine deiodinase enzymes (DIO), which catalyze the conversion of thyroxine (T4) in triiodothyronine (T3), then exerting a fine tuned control on thyroid hormones metabolism. Several studies have investigated the potential positive effects of Se supplementation in thyroid diseases, characterized by increased levels of hydrogen peroxide and free radicals, like autoimmune chronic thyroiditis. These studies have supplied evidences indicating that Se supplementation, maximizing the antioxidant enzymes activity, may reduce the thyroid inflammatory status. Then, it may be postulated that Se could play a therapeutical role in thyroid autoimmune diseases. Despite the fact that recent studies seem to be concordant about Se beneficial effects in decreasing thyroid peroxidase antibodies (TPOAb) titers and ameliorating the ultrasound echogenicity pattern, several doubts have to be still clarified, before advising Se supplementation in chronic autoimmune thyroiditis.Keywords: selenium, thyroid, autoimmunity Roberto NegroDove Medical PressarticleMedicine (General)R5-920ENBiologics: Targets & Therapy, Vol 2008, Iss Issue 2, Pp 265-273 (2008)
institution DOAJ
collection DOAJ
language EN
topic Medicine (General)
R5-920
spellingShingle Medicine (General)
R5-920
Roberto Negro
Selenium and thyroid autoimmunity
description Roberto NegroDepartment of Endocrinology, “V. Fazzi” Hospital, Lecce, ItalyAbstract: The trace element selenium (Se) occurs in the form of the amino acid selenocysteine in selenoproteins. Selenoproteins exerts multiple physiological effects in human health, many of which are related with regulation of reduction-oxidation processes. In fact, the selenoenzyme families of glutathione peroxidase (GPx) and thioredoxin reductase (TRx) display the ability to act as antioxidants, protecting cells from oxidative damage. Furthermore, another class of selenoproteins are the iodothyronine deiodinase enzymes (DIO), which catalyze the conversion of thyroxine (T4) in triiodothyronine (T3), then exerting a fine tuned control on thyroid hormones metabolism. Several studies have investigated the potential positive effects of Se supplementation in thyroid diseases, characterized by increased levels of hydrogen peroxide and free radicals, like autoimmune chronic thyroiditis. These studies have supplied evidences indicating that Se supplementation, maximizing the antioxidant enzymes activity, may reduce the thyroid inflammatory status. Then, it may be postulated that Se could play a therapeutical role in thyroid autoimmune diseases. Despite the fact that recent studies seem to be concordant about Se beneficial effects in decreasing thyroid peroxidase antibodies (TPOAb) titers and ameliorating the ultrasound echogenicity pattern, several doubts have to be still clarified, before advising Se supplementation in chronic autoimmune thyroiditis.Keywords: selenium, thyroid, autoimmunity
format article
author Roberto Negro
author_facet Roberto Negro
author_sort Roberto Negro
title Selenium and thyroid autoimmunity
title_short Selenium and thyroid autoimmunity
title_full Selenium and thyroid autoimmunity
title_fullStr Selenium and thyroid autoimmunity
title_full_unstemmed Selenium and thyroid autoimmunity
title_sort selenium and thyroid autoimmunity
publisher Dove Medical Press
publishDate 2008
url https://doaj.org/article/a1e8378eef364d8fa0d235865776c0bd
work_keys_str_mv AT robertonegro seleniumandthyroidautoimmunity
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