Liquid chromatography-tandem mass spectrometric quantification of the dehydration product of tetranor PGE-M, the major urinary metabolite of prostaglandin E(2) in human urine.

A LC-MS/MS method has been developed to analyze tetranor PGE-M, the major urinary metabolite of PGE(2), that involves the acid-catalyzed dehydration of tetranor PGE-M and its deuterated (d(6)) analog followed by LC-MS/MS measurement of the dehydrated tetranor PGE-M product (tetranor PGA-M). We also report a method for quantification of creatinine in urine by LC-MS/MS to normalize tetranor PGE-M concentrations with that of urinary creatinine. These methods were used to study the effect of aspirin on urinary tetranor PGE-M levels in healthy male volunteers. Aspirin did not affect urinary creatinine concentrations but decreased urinary tetranor PGE-M concentrations by approximately 44%.

Citation

Jason R Neale, Brian J Dean. Liquid chromatography-tandem mass spectrometric quantification of the dehydration product of tetranor PGE-M, the major urinary metabolite of prostaglandin E(2) in human urine. Journal of chromatography. B, Analytical technologies in the biomedical and life sciences. 2008 Aug 1;871(1):72-7

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PMID: 18632314

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