TXB2 is a stable, biologically inert metabolite formed from the non-enzymatic hydrolysis of TXA2, which has a half-life of about 30 seconds.1 Urinary analysis of TXB2 accurately reflects intrarenal TXA2 synthesis,2 while measurement of 11-dehydro and 2,3-dinor thromboxane metabolites gives the best estimate of systemic TXA2 secretion.3,4
1
Needleman, P., Moncada, S., Bunting, S., et al. Identification of an enzyme in platelet microsomes which generates thromboxane A2 from prostaglandin endoperoxides. Nature261558-560(1976).
2
Patrono, C., Ciabattoni, G., Patrignani, P., et al. Evidence for a renal origin of urinary thromboxane B2 in health and disease. Adv Prostaglandin Thromboxane Leukot Res11493-498(1983).
3
Lawson, J.A., Patrono, C., Ciabattoni, G., et al. Long-lived enzymatic metabolites of thromboxane B2 in the human circulation. Anal Biochem155198-205(1986).
4
Patrono, C., Ciabattoni, G., Pugliese, F., et al. Estimated rate of thromboxane secretion into the circulation of normal humans. J Clin Invest77590-594(1986).
Needleman, P., Moncada, S., Bunting, S., et al. Identification of an enzyme in platelet microsomes which generates thromboxane A2 from prostaglandin endoperoxides. Nature261558-560(1976).
Patrono, C., Ciabattoni, G., Pugliese, F., et al. Estimated rate of thromboxane secretion into the circulation of normal humans. J Clin Invest77590-594(1986).
Patrono, C., Ciabattoni, G., Patrignani, P., et al. Evidence for a renal origin of urinary thromboxane B2 in health and disease. Adv Prostaglandin Thromboxane Leukot Res11493-498(1983).
Lawson, J.A., Patrono, C., Ciabattoni, G., et al. Long-lived enzymatic metabolites of thromboxane B2 in the human circulation. Anal Biochem155198-205(1986).