What is Testagen?

What it is

This site puts it in the Short peptide bioregulators group.

A tetrapeptide bioregulator; the retrieved records report thyroid and thymus endpoints in hypophysectomised birds, with no receptor target named.^{[1, 2]}

Stated in the titles of the cited 2008 and 2013 Bulletin of Experimental Biology and Medicine papers.

What kind of records

No public chemistry record was found under this name, so the entry describes a preparation, a protein or a mixture rather than one defined molecule.

That sentence is produced by counting, not by reading. What was counted: PubChem returned no compound record for this name, so the subject is a preparation, protein or mixture rather than a defined small molecule; identity fields are unsourced.

What this does not settle

• What it does in a body. Counting records is not reading them, and nothing here has been read in full.
• Whether it causes harm. No adverse-effect row was taken from any source for this entry.
• How long it lasts. No pharmacokinetics source was retrieved for this entry.
• What the other 1 retrieved records say. They are not in this index.

The longer explanation

• Short peptide bioregulators: the whole group in plain language
• What does the research actually show?
• How much of the research is actually here?

Where this comes from

The records cited above, in full.

1. Effect of tetrapeptides Lys-Glu-Asp-Gly and Ala-Glu-Asp-Gly on the structure and function of the thyroid gland in neonatally hypophysectomized chickens. Bulletin of experimental biology and medicine (2008). pmid:19024016
2. Effect of peptides Lys-Glu-Asp-Gly and Ala-Glu-Asp-Gly on the morphology of the thymus in hypophysectomized young and old birds. Bulletin of experimental biology and medicine (2013). pmid:23658898