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Abstract Title:

Improvement of cytoprotective and antioxidant activity of Rosa canina L. and Salix alba L. by controlled differential sieving process against HO-induced oxidative stress in mouse primary splenocytes.

Abstract Source:

Int J Vitam Nutr Res. 2018 Feb 28:1-10. Epub 2018 Feb 28. PMID: 30816796

Abstract Author(s):

Nidhal Soualeh, Aliçia Stiévenard, Elie Baudelaire, Rachid Soulimani, Jaouad Bouayed

Article Affiliation:

Nidhal Soualeh

Abstract:

In this study, cytoprotective and antioxidant activities of Rosa canina (RC) and Salix alba (SA), medicinal plants, were studied on mouse primary splenocytes by comparing Controlled Differential Sieving process (CDSp), which is a novel green solvent-free process, versus a conventional technique, employing hydroethanolic extraction (HEE). Thus, preventive antioxidant activity of three plant powders of homogeneous particle sizes, 50-100µm, 100-180 µm and 180-315 µm, dissolved directly in the cellular buffer, were compared to those of hydroethanolic (HE) extract, at 2 concentrations (250 and 500 µg/mL) in HO-treated spleen cells. Overall, compared to HE extract, the superfine powders, i. e., fractions<180µm, at the lowest concentration, resulted in greater reactive oxygen species (ROS) elimination, increased glutathione peroxidase (GPx) activity and lower malondialdehyde (MDA) production. Better antioxidant and preventive effects in pre-treated cells were found with the superfine powders for SA (i.e., 50-100 µm and 100-180 µm, both p<0.001), and with the intermediate powder for RC (i. e., 100-180µm, p<0.05) versus HE extract. The activity levels of catalase (CAT) and superoxide dismutase (SOD) in pretreated splenocytes exposed to HO, albeit reduced, were near to those in unexposed cells, suggesting that pretreatment with the fine powders has relatively restored the normal levels of antioxidant-related enzymes. These findings supported that CDSp improved the biological activities of plants, avoiding the use of organic solvents and thus it could be a good alternative to conventional extraction techniques.

Study Type : In Vitro Study

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Sayer Ji
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