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  • Title: [Medium molecular weight uremic toxins and endogenous polyamines. Behavior of polymorphonuclear leukocyte chemotaxis with respect to chromatographic peaks of dialysate and standard polyamines].
    Author: Stabellini G, Spisani S, Fiocchi O, Stabellini N, Carletti R, Altobelli A, Farinelli A.
    Journal: Boll Soc Ital Biol Sper; 1982 Nov 15; 58(21):1418-24. PubMed ID: 7159534.
    Abstract:
    The aim of our study is to evaluate the eventual activity of the total dialysate of two uremic nephrectomized patients in recirculating dialysis and the chromatographic peak of the dialysate fractionated by Sephadex column G 15 on PMN chemotaxis. Only the total dialysate and the chromatographic peak B showed inhibition of chemotaxis. On the contrary the commercial polyamines in the same concentration range, and the other chromatographic peaks, containing polyamines too, did not revealed inhibition. Our data show, therefore, that the chemotaxis inhibition could be due to the middle-molecules present in the peak B, rather than the polyamines itself. Polyamines were determined by dansylation method, separated by thin layer chromatography and quantified by spectrofluorimeter. Chemotaxis was evaluated using the modified Boyden chamber.
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