... high-performance liquid chromatography. The inhibitory effect of eluates on in vitro lymphocyte proliferation was assessed at the different steps of purification. Results obtained after enzyme treatment suggested that the substance(s) responsible for the immunosuppressive activity is (are) of peptidic...

...Hisao Mabuchi; Hisamitsu Nakahashi We have carried out high performance liquid chromatographic analysis of serum and ultrafiltrate of blood obtained from uremic patients and normal subjects to elucidate the presence of medium-sized peptides unique to uremia. Many fluorescamine-positive substances...