This invention provides a composition having preventive and/or therapeutic effects on liver disease, which is highly effective, free of side effects, easily ingestible, and capable of long-term ingestion from the viewpoint of a cost and safety. This invention relates to a peptide having the amino acid sequence represented by the following formula: pyroGlu-(X)n-A, wherein X is the same or different and represents Gln or Asn; A represents Gln, Asn, Leu, Ile, or Val; and n is an integer from 0 to 2 or a salt thereof.
这项发明提供了一种对肝病具有预防和/或治疗作用的组合物,该组合物具有高度有效、无副作用、易于摄入和从成本和安全性的角度来看能够长期摄入的特点。该发明涉及一种具有以下式子表示的
氨基酸序列的肽:pyroGlu-(X)n-A,其中X相同或不同,代表Gln或Asn;A代表Gln、Asn、Leu、Ile或Val;n为0到2的整数或其盐。