Changes in Na+, K+-adenosinetriphosphatase and 5'-nucleotidase activities in cell membrane isolated from rat liver after acute white phosphorus poisoning

Ribotta, P.B.; Parola, M.; Barrera, G.; Carasso, M.C.; Bosia, B.; Paradisi, L.

Bollettino della Societa Italiana di Biologia Sperimentale 58(23): 1589-1595

1982


ISSN/ISBN: 0037-8771
PMID: 6299313
Document Number: 188077
Na+, K+-ATPase and 5'-Nucleotidase activities in rat liver plasmamembranes after "in vivo" intoxication with a single dose of white phosphorus (10 mg/kg b.w. "per os") are investigated. Na+, K+-ATPase activity is significantly increased 1 hour and inhibited 12 hours after intoxication. 5'-Nucleotidase is strongly increased at 1, 2 and 4 hours after poisoning and is significantly decreased at 12 hours. The enhancement of both the enzymatic activities is evident prior to triglyceride accumulation in rat liver. Our results suggest that lipid fluidity of cell membrane is early and mildly affected during white phosphorus poisoning.

Document emailed within 1 workday
Secure & encrypted payments