The thyroid hormones are tyrosine-based hormones produced by the thyroid gland that are primarily responsible for regulation of metabolism. T3 and T4 are partially composed of iodine. A deficiency of iodine leads to decreased production of T3 and T4, enlarges the thyroid tissue and will cause the disease known as simple goitre. The major form of thyroid hormone in the blood is thyroxine, which has a longer half-life than T3. In humans, the ratio of T4 to T3 released into the blood is sometimes c
Similarly, the National Institutes of Health (NIH) requires that all trainees, fellows, participants, and scholars receiving support through any NIH training, career development award (individual or institutional), research education grant, or dissertation research grant must receive RCR training.
Policies and Guidelines. Documentation from NCCIH and NIH on proper research procedures. Awarded Grants and Contracts. Lists of research and training grants funded for both new and ongoing research, with links to abstracts.