Physicochemical study of platelet aggregation by 3 polylysines
Stoltz, J.F.; Streiff, F.; Nicolas, A.; Alexandre, P.; Larcan, A.
Comptes Rendus des Seances de la Societe de Biologie et de ses Filiales 169(6): 1424-1428
1975
ISSN/ISBN: 0037-9026 PMID: 132231 Document Number: 90236
The action of polylysines of various molecular weight on platelet behaviour is studied with the help of 3 techniques: photometric test, screen filtration pressure on PRP and electrophoretic mobility. Polylysines, which are polybasic substances, produce a platelet aggregation studied by photometry after a short period of latency. Aggregation, depending on the doses of poly-lysine and chiefly on the optic density, shows a "plateau" with the dose of 100 gamma/ml for poly-lysine L, of molecular weight 17000. The screen filtration pressure increases continuously in the presence of the polylysines studies. Finally, the platelet charge decreases. The results depend on the concentration of poly-lysine, and the optimal concentration which involves the more marked alterations is inversely proportional to the molecular weight of the polylysine studied.