abstract |
The present invention relates to a peptide of formula (I): X 1 (X 2 ) -X 3 -X 4 , or a salt or solvate thereof, wherein X 1 is an amino acid comprising two or more NH- 2 , X 3 and X 4 are independently of each other an amino acid residue, and the salt or solvate is preferably a physiologically acceptable salt or solvate. |