title: Effect of diet supplemented with quinoa seeds on oxidative status in plasma and selected tissues of high fructose-fed rats.
abstract: Oxidative stress plays an important role as a mediator of damage produced by fructose metabolism. This work was designed to investigate the effect of diet supplemented with quinoa seeds on oxidative stress in plasma, heart, kidney, liver, spleen, lung, testis and pancreas of fructose administered rats. Fructose administration (310 g/kg fodder for 5 weeks) caused oxidative stress that was manifested by the increase in plasma malondialdehyde (MDA) (p<0.05), and by the non-significant changes in the enzymatic antioxidant potential in plasma and most of tissues. Co-administration of quinoa seeds (310 g/kg fodder) maintained normal activities of some enzymes. It also influenced the oxidative stress as was evidenced by decreasing MDA in plasma, and decreasing the activities of antioxidant enzymes (erythrocyte superoxide dismutase - eSOD, catalase -CAT, plasma glutathione peroxidase - pGPX). These findings demonstrate that quinoa seeds can act as a moderate protective agent against potential of fructose-induced changes in rats by reducing lipid peroxidation and by enhancing the antioxidant capacity of blood (plasma) and heart, kidney, testis, lung and pancreas.
authors.affiliation: Department of Food Chemistry and Nutrition, Medical College, The Jagiellonian University, Medyczna 9, Kraków, 30-688, Poland. paskopaw@poczta.fm
authors.forename: Pawel
authors.initials: P
authors.lastname: Pasko
authors.forename: Henryk
authors.initials: H
authors.lastname: Barton
authors.forename: Pawel
authors.initials: P
authors.lastname: Zagrodzki
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Izewska
authors.forename: Miroslaw
authors.initials: M
authors.lastname: Krosniak
authors.forename: Malgorzata
authors.initials: M
authors.lastname: Gawlik
authors.forename: Maciej
authors.initials: M
authors.lastname: Gawlik
authors.forename: Shela
authors.initials: S
authors.lastname: Gorinstein
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism / Q000494:pharmacology*; D002374:Catalase / Q000378:metabolism; D027465:Chenopodium quinoa; D019587:Dietary Supplements; D005632:Fructose; D005979:Glutathione Peroxidase / Q000378:metabolism; D015227:Lipid Peroxidation / Q000187:drug effects*; D008297:Male; D008315:Malondialdehyde / Q000097:blood*; D018384:Oxidative Stress / Q000187:drug effects*; D028321:Plant Preparations / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D012639:Seeds; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D000975:Antioxidants; D028321:Plant Preparations; D005632:Fructose; D008315:Malondialdehyde; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase