T3 Uptake
T3 Uptake is a test that measures the binding capacity of thyroid hormone binding proteins in the blood. This test can help assess thyroid function.
iollo markers that associate with T3 Uptake
Phenylalanine
Phenylalanine is converted to tyrosine, which is needed for thyroid hormone synthesis. Altered phenylalanine metabolism could affect T3 uptake.
References
References
Lorena Tedeschi, Cristina Vassalle, Giorgio Iervasi, and Laura Sabatino. “Main Factors Involved in Thyroid Hormone Action”. ncbi-nlm-nih-gov/pmc/articles/PMC8658769/ (2021). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658769/
Unspecified. “Effects of Dietary Phenylalanine and Tyrosine on Circulating Thyroid Hormone Concentrations and Growth in Chicks”. sciencedirect.com/science/article/pii/S0022316623278736 (Unspecified). https://www.sciencedirect.com/science/article/pii/S0022316623278736
Unspecified. “Physiology, Thyroid Hormone”. ncbi-nlm-nih-gov/books/NBK500006/ (2023). https://www.ncbi.nlm.nih.gov/books/NBK500006/
Tyrosine
Tyrosine is required for the synthesis of thyroid hormones T3 and T4. Changes in tyrosine levels may impact thyroid function and T3 uptake.
References
References
Gozu H, Yildiz ME, Akalin NS. Hypothyroidism Information | Mount Sinai - New York. Ann Endocrinol (Paris) (2014). https://www.mountsinai.org/health-library/condition/hypothyroidism
Katie Wilkinson. L-Tyrosine and Hypothyroidism - Paloma Health. Paloma Health (2024). https://www.palomahealth.com/supplements/l-tyrosine-hypothyroidism
VA.gov. HYPOTHYROIDISM. VA.gov (2020). https://www.va.gov/WHOLEHEALTHLIBRARY/docs/Hypothyroidism.pdf
Rupa Health. L-Tyrosine Supplementation: Supporting Thyroid Health and … Rupa Health (2024). https://www.rupahealth.com/post/l-tyrosine-supplementation-supporting-thyroid-health-and-adrenal-function