The aim of this study was to explore the role of p-coumaroyl in the antioxidant and cytoprotective effects of flavonoid glycosides. The antioxidant effects of astragalin and tiliroside were compared using ferric ion reducing antioxidant power, DPPH• scavenging, ABTS•⁺ scavenging, •O₂- scavenging, and Fe2+-chelating assays. The results of these assays revealed that astragalin and tiliroside both...

Objective: The present investigation was an attempt to evaluate the phytochemical constituents, free radical scavenging activities and antioxidant properties of the methanol extract of leaves of Hypericum hookerianum. Methods: The total antioxidant activity was assayed by DPPH free radical scavenging assay method. The phytochemicals in the methanol extract of leaves of Hypericum hookerianum wer...

The genus Verbascum L. belongs to the family Scrophulariaceae and includes plants that have been used widely in traditional medicine for a long time. Methanolic extracts of three Verbascum species from flora of Iran were in vitro screened for their possible antioxidant activities by three complementary test systems, namely DPPH free radical-scavenging, metal chelating activity and β-carotene/li...

Natural antioxidants found in marine macroalgae are bioactive compounds known to play an important role in the prevention of diseases associated with aging cells protecting them against the oxidative damage. The purpose of this study was to evaluate the antioxidant and cytotoxic activity of ethanolic extracts of two species of red seaweeds, Amansia multifida and Meristiella echinocarpa. In vitr...

In the present work, Allium sativum paste has been prepared and analyzed to determine their antioxidant, in vitro antibacterial, in vitro cytotoxicity and apoptosis activities. Butylated hydroxy toluene has been used as standard. Results show the highest % of inhibition in DPPH assay 97.06±0.001 and metal chelating assay 82.35±0.005 at 100μg concentration. Extracts exhibited strong antimicrobia...

Aim:The present study aimed to assess the in vitro antioxidant and anticancer properties of Drosera peltata J.E.Sm. Methods:Antioxidant capacity of the extracts were tested on hydroxyl, DPPH, super oxide, nitric oxide and ABTS radicals; of ferrous ion chelating ability and by reducing power assay.Ascorbic acid was used as the standard antioxidant for the above all assay methods. Dalton’s Asciti...

the genus verbascum l. belongs to the family scrophulariaceae and includes plants that have been used widely in traditional medicine for a long time. methanolic extracts of three verbascum species from flora of iran were in vitro screened for their possible antioxidant activities by three complementary test systems, namely dpph free radical-scavenging, metal chelating activity and β-carotene/li...

BACKGROUND Excessive production of free radicals has been implicated in many diseases including cancer. They are highly reactive and bring about oxidation of biomolecules i.e., proteins, lipids and nucleic acids which are associated with many degenerative diseases. Natural products acting as antioxidants have ability to neutralize free radicals and their actions and hence they mitigate their ha...

Background and objectives: Artemisia aucheri Boiss. is regarded as one of 34 Artemisia species growing in Iran. The aim of this study was to undertake an investigation of the antioxidant activity as well as identification of main compound of different extracts and fractions of A. aucheri. Methods: Antioxidant activity and tot...

Abstract Sporadic occurrence of congenital portosystemic shunt (PSS) at a rate ∼1 out 10 among C57BL/6 mice, which are widely used in biomedical research, results aberrancies serologic, metabolic, and physiologic parameters. Therefore, mice with PSS should be identified as outliers research. Accordingly, we sought methods to, reliably efficiently, identify mice. Serum total bile acids ≥ 40 µM i...