Some aspects of platelet glucose metabolism in thrombocytosis due to myeloproliferative disorders.
Some aspects of the glucose metabolism were investigated in platelets of 11 healthy donors and 11 patients suffering from thrombocytosis due to myeloproliferative disorders. Out of all the glycolytic compounds measured in resting platelets, dihydroxyacetonephosphate and fructose 1,6 bisphosphate were significantly higher in cells of subjects with thrombocytosis. No difference was observed in the basic net flux of glucose through the hexose monophosphate shunt. Addition of arachidonic acid to platelets of patients with thrombocytosis had a very poor effect in stimulation of the hexose monophosphate shunt, whereas high values of activation were obtained in control platelets. Lactate production determined by collagen was found significantly higher in all patients. These data observed in platelets of patients could be explained by a decreased pool of metabolic adenine nucleotides.
D000328:Adult; D000368:Aged; D001095:Arachidonic Acids / Q000494:pharmacology; D001792:Blood Platelets / Q000201:enzymology / Q000378:metabolism*; D003094:Collagen / Q000378:metabolism; D005260:Female; D005947:Glucose / Q000378:metabolism*; D006019:Glycolysis; D006801:Humans; D007773:Lactates / Q000096:biosynthesis; D008297:Male; D008875:Middle Aged; D009196:Myeloproliferative Disorders / Q000097:blood* / Q000150:complications; D013922:Thrombocytosis / Q000097:blood* / Q000209:etiology
D001095:Arachidonic Acids; D007773:Lactates; D003094:Collagen; D005947:Glucose