Patent ID: 7723468

Claim:
An isolated peptide of the general formula: in which: Z 1 is: in the absence of X 19 , pyroglutamic acid; when X 19 is present, glutamine with a free amino end group available to close the ends of the molecule; P 1 and P 2 are disulphide bridges from C 2 to C 15 and from C 6 to C 11 , respectively, either one or both bridges being present; R 18 is: in the absence of X 19 : an arginine bearing a free carboxyl group end or forming an acceptable salt, or amidated with an amine of the formula NH 3 or RNH 2 or R 2 NH, in which R is independently a saturated or unsaturated hydrocarbyl with one to six carbons; when X 19 is present: an arginine whose free carboxyl end is involved with the closing of peptide molecule ends; X 19 may be absent or present; if present, it is a chemical link between Z 1 and R 18 or a chemical structure or molecule present between Z 1 and R 18 and linked to both, closing the amino acid chain ends of the peptide of the invention, wherein, in the absence of X 19 , R 18 , said peptide is amidated (SEQ ID NO: 1).