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Article Publish Status: FREE
Abstract Title:

Asiatic acid, a pentacyclic triterpene from Centella asiatica, is neuroprotective in a mouse model of focal cerebral ischemia.

Abstract Source:

J Neurosci Res. 2009 Aug 15 ;87(11):2541-50. PMID: 19382233

Abstract Author(s):

Rajanikant G Krishnamurthy, Marie-Claude Senut, Daniel Zemke, Jiangyong Min, Mark B Frenkel, Eric J Greenberg, Seong-Woon Yu, Nick Ahn, John Goudreau, Mounzer Kassab, Kiran S Panickar, Arshad Majid

Article Affiliation:

Rajanikant G Krishnamurthy

Abstract:

Asiatic acid, a triterpenoid derivative from Centella asiatica, has shown biological effects such as antioxidant, antiinflammatory, and protection against glutamate- or beta-amyloid-induced neurotoxicity. We investigated the neuroprotective effect of asiatic acid in a mouse model of permanent cerebral ischemia. Various doses of asiatic acid (30, 75, or 165 mg/kg) were administered orally at 1 hr pre- and 3, 10, and 20 hr postischemia, and infarct volume and behavioral deficits were evaluated at day 1 or 7 postischemia. IgG (blood-brain barrier integrity) and cytochrome c (apoptosis) immunostaining was carried out at 24 hr postischemia. The effect of asiatic acid on stress-induced cytochrome c release was examined in isolated mitochondrial fractions. Furthermore, its effects on cell viability and mitochondrial membrane potential were studied in HT-22 cells exposed to oxygen-glucose deprivation. Asiatic acid significantly reduced the infarct volume by 60% at day 1 and by 26% at day 7 postischemia and improved neurological outcome at 24 hr postischemia. Our studies also showed that the neuroprotective properties of asiatic acid might be mediated in part through decreased blood-brain barrier permeability and reduction in mitochondrial injury. The present study suggests that asiatic acid may be useful in the treatment of cerebral ischemia.

Study Type : Animal Study

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Sayer Ji
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