| 摘要 |
Novel peptides are described consisting of dimeric peptide chains linked by a disulphide bridge. They have the following structure : <CHEM> wherein all amino acid units are in the L-configuration, A represents <CHEM> n and m independently represent the integers 1 or 2; a and b independently represent the integers 0 or 1; R, R' and R'' independently represent a hydroxy group or an amino group; and the physiologically acceptable salts thereof; with the proviso that when A and B represent a hydrogen atom and a hydroxy group respectively, b may not represent the integer 0. The dimers have a stimulatory effect on haemopoiesis, by contrast with the inhibitory effect of the monomer analogues. |
