Niosomes as a novel drug delivery system is nonionic surfactant-based vesicle, have attracted much attention in pharmaceutical fields due to their excellent behavior encapsulating both hydrophilic and hydrophobic agents. In the present study comparative free radical scavenging anti-proliferative potential of ethyl acetate root extract Aconitum heterophyllum (EAEAH) roots loaded phyto-niosomes (...

Keloid and hypertrophic scars are a type of scarring pathology which is characterised by excess collagen deposition produced during the wound healing process. The mechanism by which this occurs is not understood and although hypertrophic scars can regress spontaneously, keloids do not, and currently no effective treatment exists. In this paper we hypothesise that nitric oxide, a free radical mo...

The free radical scavenging potential of the leaves of A. squamosa was studied by using different antioxidant models of screening. The ethanolic extract at 1000 microg/ml showed maximum scavenging of the radical cation, 2,2-azinobis- (3-ethylbenzothiazoline-6-sulphonate) (ABTS) observed upto 99.07% followed by the scavenging of the stable radical 1,1-diphenyl, 2-picryl hydrazyl (DPPH) (89.77 %)...

The antioxidant action of ethanolic extract from Agaricus bisporus which is available in the supermarkets of Bucharest, Romania, was assessed by determining its reducing power and its radical scavenging activity. The determinations were made by analyzing the freeze-dried ethanolic extract. The radical scavenging activity was determined using 2, 2-diphenyl-1-picrylhydrazyl (DPPH), superoxide rad...

Nitric oxide (NO), a diatomic free radical, regulates the functions of many mammalian cells. We have previously reported that nitric oxide synthases (iNOS, eNOS and bNOS) are induced during rat tendon healing and inhibition of nitric oxide synthases (NOS) inhibited rat tendon healing [1]. The aim of this study was to evaluate the effects of deleting the iNOS gene on Achilles tendon healing in m...

The present investigation is to evaluate the antioxidant activity of various extracts of root and leaf of F. strobilifera using different in vitro methods and its phytochemical analysis. The antioxidant activity was studied by DPPH radical scavenging method, nitric oxide radical inhibition assay and scavenging of hydroxyl radical by p-NDA method. Methanolic extract of root and leaf of F. strobi...

Abstract BACKGROUND During the past several decades, photocatalytic activity by ferrite nanomaterials has been widely interested in environmental remediation. Magnetically recyclable CuFe 2 O 4 /rGO nanocomposite with different graphene oxide contents was prepared hydrothermal method, and photodegradation performance of this studied under sunlight irradiation. RESULTS The magnetic property show...

although several methods have been developed to make gamma-aminobutyric acid (gaba) accumulate in tea, the active ingredients and health benefits vary widely depending on the manufacturing process of tea products. in this study, the levels of bioactive compounds and antioxidant activity in tea leaves given the continuous anaerobic condition were investigated. gaba and other free amino acids suc...

We studied the mechanism of formation of oxygen radicals during ferrous ion-induced decomposition of linoleic acid hydroperoxide using the spin trapping and chemiluminescence methods. The formation of the superoxide anion (O2*-) was verified in the present study. The hydroxyl radical is also generated through Fenton type decomposition of hydrogen peroxide produced on disproportionation of O2*-....

Evolution has resorted to nitric oxide (NO), a tiny, reactive radical gas, to mediate both servoregulatory and cytotoxic functions. This article reviews how different forms of nitric oxide synthase help confer specificity and diversity on the effects of this remarkable signaling molecule.