规格: | 98% |
分子量: | 361.5 |
包装 | 价格(元) |
50ug | 电议 |
100ug | 电议 |
Background:
13,14-dihydro-15-keto-Prostaglandin D2-d9(13,14-dihydro-15-keto PGD2-d9) is intended for use as an internal standard for the quantification of 13,14-dihydro-15-keto PGD2by GC- or LC-MS. 13,14-dihydro-15-keto PGD2is a metabolite of PGD2which is formed through the 15-hydroxy PGDH pathway. 13,14-dihydro-15-keto PGD2was recently identified as a selective agonist for the CRTH2/DP2receptor.1It also inhibits ion flux in a canine colonic mucosa preparation.2In humans, 13,14-dihydro-15-keto PGD2is further metabolized to give 11β-hydroxy compounds which have also undergone β-oxidation of one or both side chains. Virtually no 13,14-dihydro-15-keto PGD2survives intact in the urine.3,4
1.Rangachari, P.K., and Betti, P.A.Biological activity of metabolites of PGD2 on canine proximal colonAm. J. Physiol.264(5 Pt 1)G886-G894(1993) 2.Hirai, H., Tanaka, K., Yoshie, O., et al.Prostaglandin D2 selectivity induces chemotaxis in T helper type 2 cells, eosinophils, and basophils via seven-transmembrane receptor CRTH2J. Exp. Med.193(2)255-261(2001) 3.Liston, T.E., and Roberts, L.J., IIMetabolic fate of radiolabeled prostaglandin D2 in a normal human male volunteerJ. Biol. Chem.260(24)13172-13180(1985) 4.Morrow, J.D., Prakash, C., Awad, J.A., et al.Quantification of the major urinary metabolite of prostaglandin D2 by a stable isotope dilution mass spectrometric assayAnal. Biochem.193(1)142-148(1991)