Patent ID: 7989590

Claim:
A peptide consisting of the sequence: Leu-Glu-His-Ala (SEQ ID NO: 1) or its derivative, or a salt thereof, wherein the derivative is obtained by acetylation, palmitoylation, myristylation, amidation, acrylation, dansylation, biotinylation, phosphorylation, succinylation, anilide formation, benzyloxycarbonylation, formylation, nitration, sulfonation, aldehyde formation, cyclization, glycosylation, monomethylation, dimethylation, trimethylation, gaunidylation, amidination, maleylation, trifluoroacetylation, carbamylation, trinitrophenylation, nitrotroponylation, or acetoacetylation of the peptide.