4.6 Article

The protective effect of Moringa oleifera plant extract against glutamate-induced DNA damage and reduced cell viability in a primary retinal ganglion cell line

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PEERJ
卷 9, 期 -, 页码 -

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PEERJ INC
DOI: 10.7717/peerj.11569

关键词

Moringa oleifera; Glutamate; Retinal Ganglion Cel; Comet assay; DNA damage

资金

  1. Deanship of Scientific Research at King Saud University [RG-1441-540]

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In this study, we found that Moringa oleifera seed extract has a protective effect against glutamate-induced DNA damage in RGCs, potentially increasing the cell survival rate without affecting DNA integrity. The seed extract is rich in phytochemicals and demonstrates neuroprotective effects, suggesting it may help prevent the development of neurodegenerative disorders.
Background. Glutamate excitotoxicity can cause DNA damage and is linked to many retinal and neurological disorders. In mammals, the visual signal from the eyes to the brain is conducted only by retinal ganglion cells (RGCs), which can be damaged by overstimulation of glutamate receptors. Methodology. We examined the protective effects of Moringa oleifera seed extract against glutamate-induced DNA damage in RGCs. RGCs cells were treated with 5, 10, 50, or 100 mu g/ml of M. oleifera seed extract and glutamate separately and then assessed for DNA damage using the comet assay. We also evaluated the viability of the RGCs after both treatments using the MTT test. Additionally, RGCs were pretreated with M. oleifera seed extract (50 or 100 mu g/ml) for 2 h before glutamate treatment (100 mu g/ml) to determine the potential protective effects of M. oleifera. We performed a phytochemical analysis of the M. oleifera seed extract using standard reactions. Results. The M. oleifera seed extract was found to be rich in many phytochemicals. We observed a significant dose-dependent elevation in all comet assay variables in glutamate-treated RGCs, whereas M. oleifera seed extract treatments did not show any significant change in DNA integrity. Conclusion. M. oleifera seed extract demonstrates neuroprotective effects, which suggests it may help to prevent the development of many neurodegenerative disorders.

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