(+)-Praeruptorin A

(+)-Praeruptorin A is a coumarin derivative originally isolated from P. praeruptorum.{36657} It prevents LPS-induced increases in IL-1B and TNF-a in a concentration-dependent manner when used at concentrations ranging from 6.25 to 100 µM and IL-6 at concentrations ranging from 25 to 100 µM.{36658} It inhibits potassium chloride-induced contraction of isolated rabbit trachea by 50 and 100% when used at concentrations of 4.8 and 30 µM, respectively.{36659} Topical administration of (+)-praeruptorin A (0.3 µmol/cm2) reduces edema by 22% in a croton oil mouse model of inflammation.{36660}