The basics of thyroid hormone action, transport and conversion

This comprehensive educational post collects the basics of thyroid hormone, transport and conversion. T3 action on nuclear receptors Every organ and tissue in your body must maintain a healthy level of T3 hormone activity to function properly. Every organ needs T3, from our liver to our heart; and every tissue, from our tendons to our …

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How thyroid guidelines are being used to punish doctors

Clinical guidelines are supposed to promote patient health and encourage evidence-based medicine and physician discernment, but thyroid guidelines aim to restrict testing, restrict medication, and prevent any change in therapy practices. Indeed, the enforcement of restrictions appears to be the main purpose of local and international thyroid therapy guidelines today. These thyroid therapy guidelines, and …

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2012 ATA thyroid guidelines ask for clinicians’ independent judgment

In recent years, Canadian and other international thyroid guidelines have enacted local policies that restrict thyroid therapy and testing, often citing the American Thyroid Association (ATA) & American Association of Clinical Endocrinologists' (AACE) guidelines in 2012. What most "guideline policers" fail to notice is that the 2012 ATA-AACE's guidelines begin with a disclaimer against their …

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The TSH-T3 disjoint in thyroid therapy

There's a deep lie behind today's TSH-based definition of "euthyroid" status and today's policies of TSH normalization in therapy. The lie is that the loss of the thyroid and the initiation of thyroid hormone dosing has NOT altered and skewed natural TSH-FT3-FT4 hormone relationships. Yes, thyroid disease and therapy DO alter and skew these functional …

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Stop spreading the unscientific myth about the normal T4:T3 ratio!

Sigh. Just sigh. Even some of our best thyroid patient advocates can unknowingly share misinformation about thyroid therapy. Mary Shomon's thyroid articles on Verywell.com are usually to be trusted. But yesterday I was saddened to see that an article supposedly authored by Mary Shomon was spreading unscientific myths about "normal" thyroid secretion ratios being 13:1 …

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LifeLabs BC handout reveals thyroid testing policy failure

This week, a thyroid patient from British Columbia posted an image of a piece of paper handed to her at a LifeLabs laboratory. LifeLabs BC was using this paper leaflet to explain to her why "Free T3 and Free T4 will not be tested when the TSH is in reference range." THE LEAFLET GIVEN TO …

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