PROBLEM TO BE SOLVED: To provide methods and compositions of treating an obstructive coronary artery disease in a mammalian subject.SOLUTION: An aromatic-cationic peptide has: at least one net positive charge; a minimum of four amino acids; a maximum of about 20 amino acids; a relationship between the minimum number of net positive charges (p) and the total number of amino acid residues (r) in which 3pis the largest number that is less than or equal to r+1; and a relationship between the minimum number of aromatic groups (a) and the total number of net positive charges (p) in which 2a is the largest number that is less than or equal to p+1 except when a is 1 and pis also 1.SELECTED DRAWING: None【課題】哺乳類対象における閉塞性冠動脈疾患を治療する方法および組成物を提供する。【解決手段】少なくとも1つの正味の正電荷と、最低4個のアミノ酸と、最高約20個のアミノ酸と、正味の正電荷の最低数(pm)とアミノ酸残基の合計数(r)との間に、3pmがr+1以下の最大数である、という関係と、芳香族基の最低数(a)と正味の正電荷の合計数(pt)との間に、aが1でありptもまた1であるような場合を除いて、2aがpt+1以下の最大数であるという関係と、を有する芳香族カチオン性ペプチド。【選択図】なし