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Literature DB >> 1522764

Inhibition of ferrous-induced lipid peroxidation by pyrimido-pyrimidine derivatives in human liver membranes.

J P de la Cruz¹, T Carrasco, G Ortega, F Sanchez de la Cuesta.

Abstract

The effects of pyrimido-pyrimidine derivatives (dipyridamole, RA-642, and RA-233) on lipid peroxidation, using d-alpha-tocopherol as standard, were studied in enriched membrane fractions from human and rat hepatocytes. Equimolar concentrations of ferrous sulfate and ascorbic acid were used to induce lipid peroxidation. The amount of peroxidized lipids observed in membrane fractions from human liver was smaller than in those from rat liver. In both species, however, pyrimido-pyrimidine derivatives, except for RA-233 in rat liver, inhibited lipid peroxidation dose-dependently in the following sequence: RA-642 greater than dipyridamole greater than d-alpha-tocopherol RA-233.

Entities: Chemical Species

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Year: 1992 PMID： 1522764 DOI： 10.1007/bf02536177

Source DB: PubMed Journal: Lipids ISSN： 0024-4201 Impact factor: 1.880

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