Cysteinyl Leukotriene

The cysteinyl leukotrienes (LTC4, LTD4, and LTE4) are metabolites of arachidonic acid and function as potent lipid mediators in inflammation. They cause smooth muscle contractions and increased capillary permeability. Analysis of cysteinyl leukotriene levels is useful in examination of Hepatitis B and Helicobacter pylori infections, cerebral vasospasms and blood-brain cell contact, as well as asthma and other inflammatory responses.