NDLI: Evaluation of Neuroprotective Effect of Althaea Officinalis Flower Aqueous and Methanolic Extracts against H2O2-Induced Oxidative Stress in PC12 Cells

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Evaluation of Neuroprotective Effect of Althaea Officinalis Flower Aqueous and Methanolic Extracts against H2O2-Induced Oxidative Stress in PC12 Cells

Content Provider	Semantic Scholar
Author	Arab, Atefeh Yazdian-Robati, Rezvan Rezaei-Seresht, Hasan Ehtesham-Gharaee, Melika Soltani, Fatemeh
Copyright Year	2017
Abstract	Objective: This study was conducted to evaluate the possible antioxidant activity and neuroprotective effects of aqueous and methanolic extracts of Althaea officinalis flowers against H2O2-induced oxidative stress in PC12 cells. Material and Methods: The antioxidant potential of extracts was evaluated by radical scavenging activity using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. For cytoprotective activity, the cells were pretreated with different concentrations (12.5, 25, 50, 100, 200 and 400 µg/ml) of the extracts for 24h and then incubated with H2O2 (480 μM) for 3 h. In co-treatment protocol, cells were simultaneously treated with H2O2 (480 μM) and the same concentrations of extracts, used in pretreatment protocol. Percentage of viability was measured using MTT assay. Results: The aqueous and methanolic extracts did not show strong DPPH radical scavenging activity (IC50 value of 128 and 255 μg/ml respectively) in comparison with ascorbic acid (IC50 value of 6.1 μg/ml). The cytoprtection study revealed that neither the methanolic, nor the aqueous extracts at tested concentrations could protect the cells against H2O2-induced cytotoxicity compared to H2O2 alone, in either co-treatment or pre-treatment experiments. Conclusion: Despite reporting the antioxidant activity of A. officinalis L. flowers, it seems that such a negligible cytoprotective activity may be related to some other factors. On the other hand, the presence of moderate antioxidant activity does not guarantee the protective activity against oxidative stress.
Starting Page	49
Ending Page	56
Page Count	8
File Format	PDF HTM / HTML
DOI	10.22034/ijps.2017.26646
Volume Number	13
Alternate Webpage(s)	http://www.ijps.ir/article_26646_583f5d0fb9e88f28136c361d43a7e0e2.pdf
Alternate Webpage(s)	https://doi.org/10.22034/ijps.2017.26646
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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