Yomogin, an Inhibitor of Nitric Oxide Production in LPS-Activated Macrophages

  • Ryu, Jae-Ha (College of Pharmacy, Research Institute of Pharmaceutical Sciences, Sookmyung Womens University) ;
  • Lee, Hwa-Jin (College of Pharmacy, Research Institute of Pharmaceutical Sciences, Sookmyung Womens University) ;
  • Jeong, Yeon-Su (College of Pharmacy. Sookmyung Womens University) ;
  • Ryu, Shi-Yong (Korea Research Institute of Chemical Technology) ;
  • Han, Yong-Nam (Natural Products Research Institute, Seoul National University)
  • Published : 1998.08.01

Abstract

In activated macrophages the inducible form of nitric oxide synthase (i-NOS) generates high amounts of toxic mediator, nitric oxide (NO) which contributes to the circulatory failure associated with septic shock. A sesquiterpene lactone compound (yomogin) isolated from medicinal plant Artemisia princeps Pampan inhibited the production of NO in LPS-activated RAW 264.7 cells by suppressing i-NOS enzyme expression. Thus, yomogin may be a useful candidate for the development of new drugs to treat endotoxemia and inflammation accompanied by the overproduction of NO.

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