Psoriasis is a immune mediated disease that affects skin characterized by hyperproliferation and inflammation of the skin. It is the most common chronic inflammatory skin disease, affecting about 2% of the general population. Skin is a major target of oxidative stress due to reactive oxygen species (ROS). This study was aimed to show that ROS play a significant role in pathogenesis of psoriasis...

The essential oils and aromatic water, known as Arak in traditional Iranian medicine, comes from the aerial part of Teucrium persicum Boiss., which is grown in Fars Province located in Iran. The samples were collected in summer and the oils and aromatic water were obtained through steam distillation. The chemical composition of the oils was analyzed using GC-MS. An analysis of the chemical prof...

The antioxidant activity of ferulic acid (1), iso-ferulic acid (2), coniferyl aldehyde (3), methyl ferulate (4), and ethyl ferulate (5) were investigated using 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and ferric-reducing antioxidant power (FRAP) assays and autoxidation of triacylglycerols of commercially available sunflower oil (TGSO). The compounds tested for ability to sc...

The ultrasound-assisted extraction of phenolic compounds from Epimedium brevicornu Maxim was modeled using response surface methodology. A Central Composite Design (CCD) was employed to optimize three extraction variables, including ethanol concentration (X 1), extraction time (X 2), and ratio of aqueous ethanol to raw material (X 3), for the achievement of high extraction yield of the phenolic...

Total polyphenols and flavonoids contents, as well as ferric reducing antioxidant power (FRAP), metal ions chelating activity, reducing power assay and scavenging activity of DPPH and ABTS radicals in aqueous and methanolic extracts obtained from mycelium, primordium, and fruiting body of Pleurotus ostreatus in both fresh as dry, were evaluated. The total polyphenol content of dried samples was...

objective: alchornea floribunda leaves are widely used in ethnomedicine for the management of immuno-inflammatory disorders. we investigated the in vivo and in vitro antioxidant activity of the leaf extract, fractions and isolated compounds of a. floribunda.materials and methods: the ethyl acetate fraction of the methanol leaf extract was subjected to several chromatographic separations to isol...

Nowadays, there is considerable interest in finding out about antioxidants that are consumed in the habitual diet. It is known that polyphenols are involved in reducing the risk of diseases associated with oxidative stress. The in vitro antioxidant activity of the principal wine polyphenolic compounds (catechins, procyanidins, anthocyanins and pyranoanthocyanins) was studied in this work. Four ...

OBJECTIVE We investigated whether melatonin is present in walnuts (Juglans regia L.) and, if so, tested whether eating walnuts influences melatonin levels and the total antioxidant status of the blood. METHODS Melatonin was extracted from walnuts and quantified by high-performance liquid chromatography. After feeding walnuts to rats, serum melatonin concentrations were measured using a radioi...

Allium affine is a member of Amaryllidaceae family, which grows wildly in some western regions of Iran. Limited information is available about the pharmacological activities of this plant. The present study aimed to evaluate the fibrinolytic and antioxidant effects of hydroalcoholic extract of A. affine aerial parts. The in vitro antioxidant properties of the extract were evaluated by total phe...

Research and development of natural antioxidants are gaining popularity with their wide application in food medicine. Papaya (Carica papaya L.), a plant medicinal value, is widely planted tropical regions. This study was conducted to compare the tissues different organs as well leaves flowers 9 cultivars papaya. The three methods, namely, 2,2’-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging...