title: Plasma eicosanoids and platelet aggregation as parameters to monitor tumor patients. A study in 12 healthy subjects to obtain baseline levels.
abstract: Plasma levels of the eicosanoids PGE2, 6k-PGF1 alpha and TXB2 as well as platelet aggregation were determined in 12 healthy subjects, aging 23-50. It was our assumption that the parameters could be of use to monitor cancer patients, provided that the results of the determinations could be well reproduced and that the variation within a healthy population was small. In a group of laboratory employees (6 males and 6 females) blood samples were taken, 3 times, with a 2 week interval, under controlled conditions. Drug ingestion was recorded, and taken into account for the evaluation. The ranges of plasma eicosanoid, and of in vitro platelet aggregation values were large. The variation in both parameters was in large part due to intra-individual variation (based on the different values obtained in one subject). In part however, the variation could be traced to ingestion of non steroidal anti inflammatory drugs (NSAIDs). The following abbreviations were used: NSAID = non steroidal anti inflammatory drug, PGE2 = prostaglandin E2, 6k-PGF1 alpha = 6-ketoprostaglandin-F1 alpha, TXB2 = thromboxane B2, TXA2 = thromboxane A2, PGI2 = prostaglandin I2 = prostacyclin, RIA = radio immuno assay, ADP = adenosine diphosphate.
authors.affiliation: Laboratory for Experimental Surgery, Erasmus University, Rotterdam, The Netherlands.
authors.forename: A J
authors.initials: AJ
authors.lastname: Petit
authors.forename: W J
authors.initials: WJ
authors.lastname: Kort
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000097:blood; D003627:Data Interpretation, Statistical; D004537:Eicosanoic Acids / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000097:blood; D010974:Platelet Aggregation; D011863:Radioimmunoassay; D012737:Sex Factors
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D004537:Eicosanoic Acids