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Article Publish Status: FREE
Abstract Title:

Paeonol attenuates inflammation-mediated neurotoxicity and microglial activation.

Abstract Source:

Neural Regen Res. 2013 Jun 25 ;8(18):1637-43. PMID: 25206460

Abstract Author(s):

Kyong Nyon Nam, Byung-Cheol Woo, Sang-Kwan Moon, Seong-Uk Park, Joo-Young Park, Jae-Woong Hwang, Hyung-Sup Bae, Chang-Nam Ko, Eunjoo Hwang Lee

Article Affiliation:

Kyong Nyon Nam

Abstract:

Chronic activation of microglial cells endangers neuronal survival through the release of various proinflammatory and neurotoxic factors. The root of Paeonia lactiflora Pall has been considered useful for the treatment of various disorders in traditional oriental medicine. Paeonol, found in the root of Paeonia lactiflora Pall, has a wide range of pharmacological functions, including anti-oxidative, anti-inflammatory and neuroprotective activities. The objective of this study was to examine the efficacy of paeonol in the repression of inflammation-induced neurotoxicity and microglial cell activation. Organotypic hippocampal slice cultures and primary microglial cells from rat brain were stimulated with bacterial lipopolysaccharide. Paeonol pretreatment was performed for 30 minutes prior to lipopolysaccharide addition. Cell viability and nitrite (the production of nitric oxide), tumor necrosis factor-alpha and interleukin-1beta products were measured after lipopolysaccharide treatment. In organotypic hippocampal slice cultures, paeonol blocked lipopolysaccharide-related hippocampal cell death and inhibited the release of nitrite and interleukin-1beta. Paeonol was effective in inhibiting nitric oxide release from primary microglial cells. It also reduced the lipopolysaccharide-stimulated release of tumor necrosis factor-alpha and interleukin-1β from microglial cells. Paeonol possesses neuroprotective activity in a model of inflammation-induced neurotoxicity and reduces the release of neurotoxic and proinflammatory factors in activated microglial cells.

Study Type : In Vitro Study

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