In 2011, Gullo's research team published a landmark study in thyroid therapy titled "Levothyroxine Monotherapy Cannot Guarantee Euthyroidism in All Athyreotic Patients." Gullo and colleagues examined the TSH, FT3 and FT4 levels and the FT3:FT4 ratios of 1,811 thyroidless patients on levothyroxine (LT4) monotherapy and compared them with 3,875 healthy controls. Gullo's study shook the … Continue reading Gullo: LT4 monotherapy and thyroid loss invert FT3 and FT4 per unit of TSH
This post follows up on several recent posts on the topic of Reverse T3 (RT3) and our thyroid hormone conversion enzymes, the three deiodinases. Here I'm providing some practical tips about Reverse T3 testing, test interpretation, and where we should be focusing our attention. In these posts, I aim to improve thyroid therapy by debunking … Continue reading Principles and Practical tips for Reverse T3, FT3, FT4
This week (as of October 4, 2019), 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 … Continue reading LifeLabs BC handout reveals thyroid testing policy failure
This post walks through the process of using the SPINA-Thyr to interpret thyroid lab test results. OVERVIEW SPINA-Thyr is a free diagnostic application developed by research endocrinologists who use it in peer-reviewed medical research. SPINA-Thyr has been in development since the late 1990s under the leadership of Dr. Johannes Dietrich, Specialist in internal medicine, endocrinology and … Continue reading Analyze thyroid lab results using SPINA-Thyr
In my previous post, I discussed the statement of the Canadian Society of Endocrinology and Metabolism (CSEM) response to thyroid patients' concerns, dated April 8th, 2019. There, I showed that the minor edit of adding a clause about central hypothyroidism is not really an update to the guidelines, which already acknowledged this exception. The document … Continue reading CSEM attempts to dialogue with thyroid patients, April 8, 2019
