Leukotriene E<sub>4</sub> ELISA Kit

Leukotriene E4 ELISA Kit

CAT N°: 501060
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Leukotriene E4 (LTE4) is a product of the 5-lipoxygenase (5-LO) pathway in activated mast cells, eosinophils, and monocytes. LTA4, the primary 5-LO metabolite, is rapidly converted to LTC4 and sequentially to LTD4 and LTE4. While plasma levels of LTC4 are virtually undetectable, exogenously administered LTC4 is recovered in the urine as LTE4 (5-13%) and two prominent oxidized metabolites resulting from several cycles of ?-oxidation. Cayman’s LTE4 ELISA Kit is a competitive assay developed for the measurement of LTE4 from urine without a purification step. The assay has a range of 7.8-1,000 pg/ml and a sensitivity (80% B/B0) of approximately 25 pg/ml. This “dilute and go” format has been used successfully to demonstrate significant and reproducible changes in LTE4 levels in the urine of asthmatic patients after antigen challenge.

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