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Claim
Strong Support
descriptive
Analysis v3

In areas where people have adequate selenium levels, taking vitamin B complex supplements for six months does not significantly improve quality of life or reduce symptoms of mild-to-moderate Graves’...

62
Pro
0
Against

Mechanism

Synthesis from 1 study

How it works

Selenium makes proteins that clean up damaging molecules in the eye tissues, which stops swelling and redness. Vitamin B complex also helps clean up these molecules and supports immune cells, but it doesn't work well enough to improve symptoms when selenium levels are already normal.

Most probable mechanism

In Simple Terms

Selenium is used to make special proteins that clean up harmful molecules called reactive oxygen species in the tissues behind the eyes. When these harmful molecules are reduced, the cells that cause swelling and inflammation stop becoming overactive, which lowers eye redness, swelling, and discomfort.

Causal chain
1

Selenium is absorbed and incorporated into selenocysteine for the synthesis of selenoproteins, including glutathione peroxidases

Verified by multiple studies
which leads to
2

Glutathione peroxidases neutralize reactive oxygen species generated during autoimmune inflammation in orbital tissues

Verified by multiple studies
which leads to
3

Reduced reactive oxygen species levels decrease activation of orbital fibroblasts and infiltration of immune cells, lowering production of pro-inflammatory cytokines

Verified by multiple studies
which leads to
4

Decreased orbital inflammation reduces eyelid swelling, conjunctival redness, and proptosis, improving clinical activity score and quality of life

Verified by multiple studies

Less supported by current evidence, but not ruled out

In Simple Terms

Vitamin B complex provides essential cofactors for energy production in immune cells and vitamin B12 directly neutralizes harmful molecules called reactive oxygen species, which may reduce inflammation in the eye tissues.

Causal chain
1

Vitamin B12, folate, and B6 act as cofactors for enzymes involved in one-carbon metabolism and mitochondrial energy production in immune cells

Supported by evidence
which leads to
2

Vitamin B12 directly scavenges reactive oxygen species in thyroid and orbital tissues

Supported by evidence
which leads to
3

Reduced oxidative stress and improved immune cell regulation decrease autoantibody production and orbital inflammation

Supported by evidence
which leads to
4

Lowered inflammation and autoimmunity improve clinical signs and patient-reported quality of life

Supported by evidence

Evidence from Studies

Supporting (1)

62

Community contributions welcome

62

Efficacy of selenium supplementation for mild-to-moderate Graves’ ophthalmopathy in a selenium-sufficient area (SeGOSS trial): study protocol for a phase III, multicenter, open-label, randomized, controlled intervention trial

Randomized Controlled Trial
Human
2023 Apr 14

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

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Source Study

Efficacy of selenium supplementation for mild-to-moderate Graves’ ophthalmopathy in a selenium-sufficient area (SeGOSS trial): study protocol for a phase III, multicenter, open-label, randomized, controlled intervention trial

Score: 62
DOI: 10.1186/s13063-023-07282-4

Similar Assertions

In people with mild to moderate Graves ophthalmopathy in areas where selenium levels are normal, taking 200 mcg of selenium daily along with vitamin B complex for six months does not lead to a meaningful change in quality of life compared to taking vitamin B complex alone.

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In areas where people have adequate selenium levels, taking selenium supplements with vitamin B complex for six months may result in a small reduction in eye inflammation symptoms for Graves’ ophthalmopathy, but the evidence is not conclusive because the study was not blinded.

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In adults with mild to moderate Graves ophthalmopathy in areas where selenium levels are adequate, taking 200 mcg of selenium and vitamin B complex daily for three months is associated with a higher rate of self-reported quality of life improvement compared to no such supplementation, but this difference is not observed after six months.

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In adults with mild-to-moderate Graves’ eye disease living in areas with adequate selenium levels, taking 200 micrograms of sodium selenite daily for six months leads to more patients showing improvement in eye symptoms than taking vitamin B complex alone.

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In adults with mild to moderate Graves eye disease in areas where selenium levels are normal, taking 200 mcg of selenium and vitamin B complex daily for three months is associated with a small, temporary decrease in eye bulging, but this change disappears by six months.

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