5 votes

Does hyperthyroidism affect serotonin levels?

Thyroid function and serotonin activity are highly linked. Serotonin stimulates hypothalamic TRH (Thyroid Releasing Hormone) production, leading to an increase in TSH (Thyroid Stimulating Hormone) ...
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  • 958
3 votes
Accepted

Radioactive Iodine for Hyperthyroidism: why avoid contact with others?

The main risk is to children and pregnant women associating with the person receiving I-131 treatment. Since I-131 is excreted in bodily fluids and taken up into the thyroid, those susceptible ...
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  • 13.2k
3 votes

Is eyebrow hair loss common in hyperthyroidism?

The condition that you're asking about is called in the professional terminology: "madarosis" (but see the picture that I attached). As many proffessional books states, it's common in hypothyroidism, ...
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2 votes

Can you be hyperthyroid even if levels are in Lab range

The personal set-point of thyroid homeostasis may differ between individuals [1, 2]. Multiple studies showed that the intra-individual variation of both TSH and peripheral thyroid hormones is smaller ...
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2 votes
Accepted

Why might lab test results be normal when thyroid nodules are present and there are symptoms of hyperthyroidism?

This constellation may result from at least five reasons: Hypothesis #0: Both conditions (thyroid nodules and symptoms of hyperthyroidism) are independent. Hyperthyroid symptoms including anxiety, ...
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2 votes
Accepted

Thyroid Peroxidase (TPO) Ab Test- normal or abmormal

Normal. A result of 9 where the reference range is 0 - 34 indicates that you're within the normal range. For this test, an abnormal result would be a value over 34 because it's not possible to have a ...
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1 vote
Accepted

What's the rationale behind measuring free T4?

The hypothesis is that the free hormone is the fraction which is available for uptake into the cells and interaction with nuclear receptors. The bound hormone represents actually a circulating storage ...
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  • 131
1 vote

How much Japanase dashi kombu seaweed broth can be consumed daily while not overdosing with iodine and keeping thyroid healthy?

This study from Australia https://www.mja.com.au/journal/2010/193/7/iodine-toxicity-soy-milk-and-seaweed-ingestion-associated-serious-thyroid indicates that iodine toxicity has been documented in ...
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