Antioxidant activity of aqueous, ethanolic and methanolic extracts of two common vegetables of North-eastern states of India, Parkia javanica and Phlogacanthus thyrsiflorus have been estimated by three different methods: DPPH free radical scavenging, FRAP and Ascorbate-Iron (III) induced lipid peroxidation inhibition assay. The activity was expressed as both mg trolox and ascorbic acid equivale...

Oxidation is very essential to many living organisms for the production of energy fuel biological processes. The free radicals and other reactive oxygen species (ROS), which are continuously, produced in vivo, responsible oxidation. aim present study was investigate vitro vivo antioxidant potential ethanolic extraction justicia gendarussa burm leaves [EEJG]. done by using various In methods suc...

The effects of beta-blocking and class I antiarrhythmic agents on free radical-mediated sarcolemmal lipid peroxidation were examined. Highly purified canine myocytic sarcolemmal membranes were pretreated with 10-800 microM of selected beta-blocking (propranolol, pindolol, metoprolol, atenolol, or sotalol) and class I (quinidine, lidocaine, procainamide, or diphenylhydantoin) antiarrhythmic agen...

In vitro evaluation of antioxidant activities of Ganoderma applanatum showed significant inhibition of lipid peroxidation, and potent hydroxyl radical scavenging activity when compared with standard drug catechin. IC50 values of crude, boiled and ethanolic extracts of G. applanatum were 604.8, 624 and 267 microg/ml, respectively in case of hydroxyl radical scavenging activity, and 441, 520.5 an...

Antioxidant properties of the principal biogenic amines were determined in vitro by four analytical methods—Folin Ciocalteu, DPPH, enzymatic and inhibition of lipid peroxidation—in order to avoid possible measuring-method linked mistakes. Different results are obtained, depending on the parameters that each of them measures. The combination of the data indicates that all examined amines show an...

The effects of ^-blocking and class I antiarrhythmic agents on free radical-mediated sarcolemmal lipid peroxidation were examined. Highly purified canine myocytic sarcolemmal membranes were pretreated with 10-800 /iM of selected ^-blocking (propranolol, pindolol, metoprolol, atenolol, or sotalol) and class I (quinidine, lidocaine, procainamide, or diphenylhydantoin) antiarrhythmic agents at 37°...

Mitochondrial dysfunction is increasingly being recognized as a therapeutic target in PLA26G-associated neurodegeneration (PLAN). We demonstrated in Drosophila and in human PLA2G6 mutant fibroblasts that loss of normal PLA2G6 activity is associated with increased mitochondrial lipid peroxidation and mitochondrial dysfunction. Furthermore, we identified the therapeutic benefits of deuterated pol...

The abilities of two types of chitosan oligosaccharides, chitosan oligosaccharide I (1-kDa<MW<3-kDa) and chitosan oligosaccharide II (3-kDa<MW<5-kDa), to prevent 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-induced oxidative stress were examined in ICR mice. Chitosan oligosaccharide I had no effect on TCDD-induced alterations in lipid peroxidation and glutathione S-transferase activity or liver w...

The antioxidant activities of 53 medicinal plants used in Bamun folk medicine for the management of jaundice and hepatitis were investigated. The studies were done using rat hepatic microsomes for lipid peroxidation and bovine serum albumin (BSA) for carbonyl group formation. Silymarine was used as reference compound. Fifteen different extracts were effective at a dose of 200 microg/ml in both ...