Research Commentary
A percentage from rat skin is not a recovery protocol
The 1999 thymosin beta-4 wound paper is real. The leap from that percentage to a human course is not in the paper.
A 42 percent or 61 percent gain is a memorable number. In Malinda and colleagues, 1999, it is the gain in re-epithelialization of full-thickness wounds in rats, over saline, at 4 days and at 7 days. Memorable numbers get stripped of the rat. What remains sounds like a protocol.
The paper’s own ceiling
The authors suggest the peptide may be useful in the clinic. “May be useful” is a discussion sentence, written after a rat experiment and a cell-migration assay. It is not a dose, a course length, or a healed human tendon. Later human research would have to be cited on its own. This commentary does not borrow it.
Keep the species visible
If a summary cannot say “rat” without hurting the claim, the claim was larger than the study. That is the editorial test. PMID 10469335 passes the test only when the species stays in the headline.