Polypeptide, dna molecule encoding the polypeptide, vector, preparation method and use

A method for the improvement of condition in a subject comprising administering a polypeptide to the subject,

• wherein the polypeptide has any one of the amino acid sequences of (I) and (II):
• (I) the amino acid sequence of SEQ ID NO:
• 1;
• (II) amino acid sequences obtained from the amino acid sequence as set forth in SEQ ID NO:
• 1 with amidation, phosphorylation, methylation, acetylation, ubiquitination, or carbonylation of one or more amino acids, and
• wherein the improvement of condition is selected from the group consisting of:
• the inhibition of bacteria;
• the prevention and/or treatment of a bacterial infection disease and/or eczema;
• the promotion of tissue repair and/or wound healing;
• and
• the treatment of a burn injury, cold injury, crush injury, war injury, animal bite, nuclear radiation injury or combined injury.