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Moulazadeh A, kouhpayeh S A, Ranjbar R, Dakhili Ardestani A, Hekmat M, Azarnia S et al . Antioxidant activity, phenolic and flavonoid content of Lawsonia inermis and Haplophyllum vermiculare. Physiol Pharmacol. 2021;
URL: http://ppj.phypha.ir/article-1-1637-en.html
Abstract:   (58 Views)
Introduction: Continuous exposure of oxidants to the skin may disrupt the antioxidant balance and leads to inflammatory skin diseases (ISD). Objectives: The aim of the present study was to compare the antioxidant activity, phenolic and flavonoid content of two traditionally used plants in ISD; Lawsonia inermis and Haplophyllum vermiculare. Methods: The Hydroethanolic extract of the plants was prepared by maceration. Phenolic and flavonoid content of the extracts was measured respectively with Folin-Ciocateu and aluminum chloride methods. The monovalent reducing power and radical scavenging activity were also evaluated respectively by Ferric Reducing Antioxidant Power (FRAP) and 2,2-Diphenyl-1-Picryl-Hydrazyl (DPPH) methods. Results: The reducing power of Lawsonia inermis (862.89 ± 32.23 μmolFe2+/g) was significantly (P=0.0043) higher than Haplophyllum vermiculare extract (765.52 ± 29.39 μmolFe2+/g). The radical scavenging activity of Lawsonia inermis extract at a concentration of 1000 µg/ml (% 65.72 ± 0.77) was also significantly (P<0.0001) higher than Haplophyllum vermiculare (% 36.34 ± 2.52). The higher antioxidant activity of Lawsonia inermis is probably due to its higher phenolic (96.76 ± 3.34 μg GAE/mg) and flavonoid content (197.69 ± 5.76 μg QE/mg). Conclusion: Henna leaves had higher antioxidant activity, phenolic and flavonoid content compared to aerial parts of Haplophyllum vermiculare, and may be more effective in improving oxidative stress, prevention and treatment of ISD.
     
Types of Manuscript: Original Research | Subject: Pharmacology

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