Dr. Gary Pepper and Dr. Paul Aoun discuss recent findings about thyroid hormone treatment at the 15th International Thyroid Congress
According to experts, 10 to 20% of hypothyroid individuals fail to respond completely to T4-only (levothyroxine, Synthroid) treatment. Dr. Anthony Bianco, the president of the American Thyroid Association, and his associates believe this is due to genetic variations in the way thyroid hormone is converted in the body from T4 into T3. T3 is the much more potent form of thyroid hormone and unless the cells of the body receive enough T3, normal function cannot be achieved and symptoms of low thyroid such as fatigue, mental fogginess, constipation, muscle aches etc, persist. Based on the research conducted by Dr. Bianco and colleagues it is thought that in those with the genetic trait making T4 treatment ineffective, blood tests would show low T3 levels. (more…)
By Gary Pepper, M.D.
Last week I posted a few highlights from the just concluded International Thyroid Congress. One of the research papers presented at the meeting generated particular concern. Endocrinologists and scientists at UCLA Medical Center led by Dr. Jerome Hershman investigated the potential for pesticides to damage the DNA of thyroid cells. The group focused on double strand breaks, the type of damage that could eventually lead to cancer. This is a particularly relevant point due to the explosion in newly diagnosed thyroid cancers being reported in many areas of the world. The increase is likely related, at least in part, to improved diagnostic techniques for thyroid cancer but could also represent environmental influences. (more…)
Update from the 15th International Thyroid Congress, Orlando Florida, October, 2015
By Gary Pepper, M.D.
Â Â Â Â I just returned from Orlando, Florida, where I attended the 15th International Thyroid Congress and want to provide a report of my experience, to readers of metabolism.com. This was truly an international event with an estimated 50% of the attendees from outside the U.S. Organizers of this event describe it as, â€œRenowned experts in thyroid function and biology, diagnosis and management of thyroid disease, and novel therapies for treating thyroid cancer are gathering at the 15th International Thyroid Congress (ITC) to present, discuss, and debate the latest advances in thyroidology. Held every five years, the ITC is a collaborative meeting of the four world thyroid associations; the ATA (American Thyroid Association), Asia-Oceania Thyroid Association (AOTA), European Thyroid Association (ETA), and Latin American Thyroid Society (LATS).â€
I was particularly excited to be attending this conference this year since my colleagues, Drs. Paul Cassanova and Kathryn Reynolds and I were presenting our study on the use of combination T3 plus T4 for the treatment of underactive thyroid (hypothyroidism).
Here are some papers I found to be of particular interest; (more…)
Why Patients Arenâ€™t Receiving the Most Effective Treatment for Hypothyroidism
By Gary Pepper, M.D.
For the past 3 to 4 decades endocrinologists worldwide have adhered to the belief that only synthetic T4 (the most abundant of 4 thyroid hormones produced by the thyroid) is appropriate therapy for a sluggish thyroid even though it is known that a substantial number of those treated with T4 only continue to suffer from persistent symptoms of the disease. This may be because under normal conditions the thyroid produces two principle hormones T4 and T3. In 2013 an NIH study showed that 50% of those with hypothyroidism preferred treatment which includes T3 and our group reported that 78% of a subgroup of patients preferred T3 containing medication to treat hypothyroidism . (more…)
I wanted to update my comment with regard to Thyroid post op presentation.
I am now on 120 mg of Armour thyroid, and have been since about July of 2012.
The 2013 guidelines issued by the American Association of Clinical Endocrinologists and the American Thyroid Association reiterated their long standing opinion that only a single hormone, T4 (Synthroid, levothyroxine) is advised for treatment of hypothyroidism. These key organizations