Abstract
Activated microglia that produce reactive nitrogen species (RNS), inflammatory factors, reactive oxygen species (ROS), and other neurovirulent factors may lead to the development of neurodegenerative diseases. Certain compounds can inhibit the activation of microglia. However, these mechanisms remain unclear. In the present study, we investigated the inhibitory effect of Gamma-decanolactone (GD) on the production of reactive oxygen species and inducible nitric oxide synthase (iNOS) in lipopolysaccharide (LPS) - stimulated N9 murine microglial cells through the p38 MAPK signaling pathway. The results showed that GD attenuated the activation of N9 cells and inhibited intracellular reactive oxygen species and the expression of iNOS and TNF-α induced by LPS in the cells. In addition, GD blocked the phosphorylation of p38 and inhibited cleaved caspase-9 and DNA damage. These data indicate that GD has therapeutic potential for the treatment of neurodegenerative diseases, and that it exerts its effects by inhibiting inflammation.
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