T3 hormone
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REVIEW: TSH does not enhance T3 levels in age
This 2016 research study discovered that TSH plays a role in enhancing T4-T3 conversion, but TSH is less able to enhance T3 levels after age 40. METHODS: Free T3, free T4, and TSH levels from 527, 564 sera collected from patients aged 1 year or greater were studied. … 27,940 samples remaining after exclusion were stratified…
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2018 study on T4 and T3 in breast cancer
Published August 2018, a new study of T4 and T3 hormones and obesity in relation to breast cancer risk found that higher levels of T4 hormone conferred greater risk, while higher T3 levels had a protective effect. The article Ortega-Olvera, C., Ulloa-Aguirre, A., Ángeles-Llerenas, A., Mainero-Ratchelous, F. E., González-Acevedo, C. E., Hernández-Blanco, M. de L.,…
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HISTORY: Rosalind Pitt-Rivers, the co-discoverer of T3 hormone
The co-discoverers of the T3 hormone (triiodothyronine) in 1952 were Rosalind Pitt-Rivers, MD, PhD (London) and Dr. Jack Gross, MD, PhD (McGill) from Canada. Rosalind Pitt-Rivers’ early life Dr. Jamshed Tata, one of Pitt-Rivers’ many co-authors, wrote the Biographical Memoirs of Dr. Pitt-Rivers, in 1994. This work is the main source of this profile. Tata…
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GRAPHIC and discussion: T3 Depletion
Illness as trigger of T3 depletion Science understands this process of T3 depletion as “non-thyroidal illness.” It has been called “non-thyroidal” because paradoxically, people with normal thyroid glands experience this deep, yet temporary hypothyroidism when they become very ill. It is believed that during illness, the body protects itself by lowering its metabolic set-point. The…