Scientists have resurrected antimicrobial peptides from ancient mammals and tested them against drug-resistant bacteria. According to ScienceDaily, some of these evolutionary relics were more potent than modern human versions. This suggests that molecules shaped by ancient evolution may still hold useful antibacterial activity.
The study's significance is not necessarily that ancient peptides are ready to be used as drugs, but that they provide a new way to think about designing treatments. By comparing ancient and modern peptides, researchers can identify features that make some versions more effective against resistant pathogens.
The source does not provide full methodological details or clinical implications, so it is not clear how soon such peptides could be developed. Still, the finding adds to growing efforts to find new antibiotics by looking beyond current natural molecules.