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Abstract Title:

Bifenthrin-induced oxidative stress in human erythrocytes in vitro and protective effect of selected flavonols.

Abstract Source:

Toxicol In Vitro. 2010 Mar;24(2):460-4. Epub 2009 Oct 13. PMID: 19833193

Abstract Author(s):

Izabela Sadowska-Woda, Diana Popowicz, Agata Karowicz-Bilińska

Article Affiliation:

Department of Biochemistry and Cell Biology, University of Rzeszow, ul. Pigonia 6, 35-959 Rzeszow, Poland. isadowska@poczta.fm

Abstract:

Bifenthrin is a synthetic pyrethroid with a broad spectrum of insecticidal and acaricidal activity used to control wide range of insect pests in a variety of applications. This investigation was designed to examine (1) bifenthrin as an inducer of oxidative stress in human erythrocytes in vitro through effects on catalase (CAT) and superoxide dismutase (SOD) activities, and (2) the role of the flavonoids quercetin (Q, 40 and 80microM) and rutin (R, 80microM) in alleviating the effects of bifenthrin. Erythrocytes were divided into portions. The first portion was incubated for 4h at 37 degrees C with different concentrations (0, 42.2, 211, 1055ppm) of bifenthrin. The other portions were preincubated with Q or R for 30min, followed incubation with bifenthrin for 4h. The influence of solvent (ethanol) was also checked on the parameters studied. Malondialdehyde (MDA) concentrations, CAT and SOD activities were measured in all treatment portions of erythrocytes. Our results demonstrated that bifenthrin-induced oxidative stress causes enhanced lipid peroxidation and decreased antioxidative enzyme activities in human peripheral blood. R pretreated erythrocytes were protected against the increase of MDA induced by bifenthrin. Q (80microM) and R pretreated erythrocytes were protected against the inhibition of CAT activity induced by bifenthrin. The protective action against the inhibition of SOD activity of Q was greater than that of R at the same concentration. These results suggest that Q and R may play a role in reducing bifenthrin-induced oxidative stress in vitro.

Study Type : Human Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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