topicSelenium Immune Function Randomized Trial
claimreported that 6 months of Sel improved GO-specific QoL, reduced ocular involvement, and slowed progression in patients with mild GO, supporting its incorporation into European guidance for mild, active GO, particularly in Sel-deficient areas [].
evidence level1
citationKostadinov Nikolay (2026)
sourceEfficacy of Selenium Supplementation in Graves’ Orbitopathy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials with Trial Sequential Analysis
topicSelenium Immune Function Randomized Trial
claimSubsequent studies expanded the evidence base but introduced uncertainty: a Mexican randomized study suggested improved clinical activity and reduced progression in mild GO, whereas trials in Sel-sufficient settings and in inactive moderate-to-severe GO have reported more heterogeneous effects [,,].
evidence level1
citationKostadinov Nikolay (2026)
sourceEfficacy of Selenium Supplementation in Graves’ Orbitopathy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials with Trial Sequential Analysis
topicSelenium Immune Function Randomized Trial
claimCurrent recommendations are largely influenced by limited trial evidence, and prior syntheses have not fully clarified whether benefits differ by baseline Sel status, GO activity/severity, treatment duration, or outcome domain.
evidence level1
citationKostadinov Nikolay (2026)
sourceEfficacy of Selenium Supplementation in Graves’ Orbitopathy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials with Trial Sequential Analysis
topicSelenium Immune Function Randomized Trial
claim1 2 Graves’ orbitopathy (GO) is an immune-mediated inflammatory disorder of the orbit and periorbital tissues and represents the most common extrathyroidal manifestation of Graves’ disease.
evidence level1
citationKostadinov Nikolay (2026)
sourceEfficacy of Selenium Supplementation in Graves’ Orbitopathy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials with Trial Sequential Analysis
topicSelenium Immune Function Randomized Trial
claimAcross studies, PBM was associated with reductions in thyroid autoantibodies, improvements in thyroid hormone indices, and decreases in LT4 dose requirements.
evidence level1
citationBerisha-Muharremi V (2026)
sourcePhotobiomodulation Therapy in Chronic Autoimmune Thyroiditis: A Systematic Review of Molecular Mechanisms and Clinical Applications.
topicSelenium Immune Function Randomized Trial
claimHowever, current evidence is limited by the small number of human studies, heterogeneous PBM protocols, and the frequent use of concomitant interventions such as selenium or vitamin D.
evidence level1
citationBerisha-Muharremi V (2026)
sourcePhotobiomodulation Therapy in Chronic Autoimmune Thyroiditis: A Systematic Review of Molecular Mechanisms and Clinical Applications.
topicSelenium Immune Function Randomized Trial
claimChronic autoimmune thyroiditis (CAT), a common autoimmune thyroid disorder, is the leading cause of hypothyroidism in iodine-sufficient regions and is characterized by thyroid autoimmunity, chronic inflammation, and progressive structural thyroid changes.
evidence level1
citationBerisha-Muharremi V (2026)
sourcePhotobiomodulation Therapy in Chronic Autoimmune Thyroiditis: A Systematic Review of Molecular Mechanisms and Clinical Applications.
topicSelenium Immune Function Randomized Trial
claimAlthough levothyroxine (LT4) restores biochemical euthyroidism, it does not directly address the underlying autoimmune process, highlighting the need for adjunctive therapeutic strategies.
evidence level1
citationBerisha-Muharremi V (2026)
sourcePhotobiomodulation Therapy in Chronic Autoimmune Thyroiditis: A Systematic Review of Molecular Mechanisms and Clinical Applications.