Thyrotropin (25mg)

What is Thyrotropin (TRH)?

Three-amino-acid peptide controlling thyroid function.

Listed vial contents: 25mg. These are supplied quantities, not administration doses. Current pricing and availability are shown in the strength selector.

What mechanisms are being studied?

Thyrotropin-Releasing Hormone (TRH) is one of the smallest known peptides — just three amino acids (pGlu-His-Pro-NH2). It is the master signal controlling the thyroid axis: TRH → TSH → T3/T4. It also has direct neuromodulatory effects including CNS arousal, antidepressant activity, and neuroprotection independent of thyroid function.

What are the research questions?

• Thyroid axis diagnostics: FDA-approved for diagnostic evaluation of thyroid function — differentiates hypothalamic, pituitary, and thyroid causes of dysfunction.
• Depression (research): Direct antidepressant effects independent of thyroid axis — rapid mood elevation in clinical studies.
• Neuroprotection: Protective against various forms of neural injury in preclinical models.
• CNS arousal: Analeptic (arousal-promoting) properties studied for consciousness disorders.

What does the published work describe?

FDA-approved for thyroid diagnostic use. Prange AJ Jr et al. — TRH produced rapid antidepressant effects when administered intrathecally. Gary KA et al. — Improved cognitive function and arousal in consciousness disorders.

What are the limits of this evidence?

The research described concerns the cited experimental materials and models, not proof that this supplied vial is a treatment. Cell or animal findings do not establish human benefits. Clinical findings, where cited, apply to the tested formulation and population; they do not validate this research product for human use.

Study references

1. Prange AJ Jr et al. Lancet 1972

These are the catalog's existing bibliographic references. No new source verification is implied by this presentation.

How should I check lot documentation?

Match the product, strength and lot to an original analysis document. Literature describes experimental findings; it does not verify the contents of this inventory. A report is evidence only for the product, strength and lot it names.

How is Thyrotropin (TRH) handled in the lab?

Plan a Thyrotropin (TRH) stock solution from the sequence, the listed molecular weight (362.38 g/mol) and, when reported for the same lot, net peptide content. Test-dissolve a small portion first, store the powder sealed, cold and dry, and split solutions into single-use aliquots. These are laboratory handling notes, not administration guidance.

• Peptide solubility: choosing a lab solvent
• Stock solution molarity and concentration math
• Lyophilized storage, aliquoting and freeze-thaw
• Fmoc vs Boc synthesis and the impurities they leave