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Article Publish Status: FREE
Abstract Title:

Enhanced Neuroprotective Effects ofG115andGK501Combinations In Vitro Models of Excitotoxicity.

Abstract Source:

Int J Mol Sci. 2019 Nov 22 ;20(23). Epub 2019 Nov 22. PMID: 31771121

Abstract Author(s):

Elisa Landucci, Domenico E Pellegrini-Giampietro, Anna Rita Bilia, Maria Camilla Bergonzi

Article Affiliation:

Elisa Landucci

Abstract:

Neurological-related disorders are seen as an increasingly important aspect of welfare. While conventional medicine is still the mainstay for the treatment of these diseases, it is becoming apparent that patients are also seeking more natural and preventative interventions.G115andGK501extracts alone or in combination were used in two in vitro experimental models of primary cultures exposed to excitotoxicity: rat organotypic hippocampal slices exposed to either 5µM kainic acid or 10 µM-Methyl-d-aspartate for 24 hours, and mixed cortical cells exposed to 300µM NMDA for 10 min. Cell death in theareas CA3 or CA1 subregions of slices was quantified by measuring propidium iodide fluorescence, whereas in cortical cells, it was assessed by measuring the amount of lactate dehydrogenase. In slices, treatment with extracts alone or in combination significantly attenuated CA3 and CA1 damage induced by exposure to kainic acid or NMDA, respectively. A similar neuroprotective effect was observed in cortical cells exposed to NMDA. Analysis of cell signaling pathways found that the two extracts induced an increase of the phosphorylation and they reversed the decrease of phosphorylation of ERK1/2 and Akt induced by kainic acid and NMDA in organotypic hippocampal slices. These results suggest thatG115andGK501extracts may mediate their effects by activating phosphorylation of ERK1/2 and Akt signaling pathways, protecting against excitotoxicity-induced damage in in vitro models.

Study Type : In Vitro Study

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