Title : Platelet activating factor stimulates and primes the liver, Kupffer cells and neutrophils to release superoxide anion.

Pub. Date : 1992

PMID : 1334036






9 Functional Relationships(s)
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1 Platelet activating factor stimulates and primes the liver, Kupffer cells and neutrophils to release superoxide anion. Superoxides PCNA clamp associated factor Rattus norvegicus
2 This study examines the direct and priming effects of PAF on superoxide anion release by perfused liver, isolated Kupffer cells and blood neutrophils. Superoxides PCNA clamp associated factor Rattus norvegicus
3 One hour after PAF infusion at a dose of 2.2 micrograms/kg body weight a significant amount of superoxide release (0.71 +/- 0.1 nmol/min/g liver) was measured in the perfused liver compared with the control livers (0.2 +/- 0.01). Superoxides PCNA clamp associated factor Rattus norvegicus
4 In the in vitro presence of either phorbol ester or opsonized zymosan, superoxide release following PAF treatment in vivo was significantly increased to 1.36 +/- 0.2 and 4.29 +/- 0.36, respectively. Superoxides PCNA clamp associated factor Rattus norvegicus
5 PAF added in vitro to the perfused livers, isolated Kupffer cells or neutrophils from normal animals stimulated the release of superoxide with or without the above agonists. Superoxides PCNA clamp associated factor Rattus norvegicus
6 The direct stimulatory effect of PAF on superoxide release was inhibited by the PAF receptor antagonist in vitro. Superoxides PCNA clamp associated factor Rattus norvegicus
7 The direct stimulatory effect of PAF on superoxide release was inhibited by the PAF receptor antagonist in vitro. Superoxides PCNA clamp associated factor Rattus norvegicus
8 The role of PAF in the LPS-induced superoxide release by the perfused liver was also examined by the administration of PAF antagonist in endotoxic rats. Superoxides PCNA clamp associated factor Rattus norvegicus
9 These results indicate that PAF stimulates and primes the hepatic elements to release superoxide. Superoxides PCNA clamp associated factor Rattus norvegicus