title: Effect of bioactive substances found in rapeseed, raspberry and strawberry seed oils on blood lipid profile and selected parameters of oxidative status in rats.
abstract: Rapeseed, strawberry and raspberry seed oils are a rich source of polyunsaturated fatty acids and antioxidants such as tocols, bioflavonoids and phytosterols. The aim of the study was to determine changes in the blood lipid profile of rats fed with rapeseed, strawberry and raspberry seed oils and their effects on selected parameters of oxidative status. The experiment was carried out on male Wistar rats. The oils were administered by oral gavage for 5 weeks once daily at the dose of about 0.8 ml per rat. Blood samples were taken before and after supplementation period. The activity of superoxide dismutase (SOD) and glutathione peroxidase (cGPx) was assessed in erythrocytes and contents of triglycerides (TG), total cholesterol, low-density fraction of cholesterol (LDL) and high-density fraction of cholesterol (HDL) were assessed in plasma. The experiment shows that oils supplemented in the diet for 5 weeks had no significant effect on the level of triglyceride (TG), total cholesterol as well as HDL and LDL fractions. Reduced activity of cGPX and SOD in the group of rats receiving raspberry and strawberry seed oils suggests that these native oils may contribute to oxidative stability (improves antioxidant status). Thus, strawberry and raspberry seed oils can be considered as special biological oils, which constitute potential nutraceuticals reducing oxidative stress.
authors.affiliation: Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, ul. Krakowska 1, 32-083 Balice, Poland. Electronic address: marek.pieszka@izoo.krakow.pl.
authors.forename: Marek
authors.initials: M
authors.lastname: Pieszka
authors.forename: Barbara
authors.initials: B
authors.lastname: Tombarkiewicz
authors.forename: Adam
authors.initials: A
authors.lastname: Roman
authors.forename: Władysław
authors.initials: W
authors.lastname: Migdał
authors.forename: Jerzy
authors.initials: J
authors.lastname: Niedziółka
mesh_terms: D000818:Animals; D029741:Brassica rapa / Q000737:chemistry*; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D005227:Fatty Acids / Q000032:analysis; D031985:Fragaria / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry*; D005979:Glutathione Peroxidase / Q000378:metabolism; D000960:Hypolipidemic Agents; D008055:Lipids / Q000097:blood*; D008297:Male; D010938:Plant Oils / Q000737:chemistry* / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D012639:Seeds / Q000737:chemistry*; D013482:Superoxide Dismutase / Q000378:metabolism; D014280:Triglycerides / Q000097:blood
chemical_list: D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D005227:Fatty Acids; D000960:Hypolipidemic Agents; D008055:Lipids; D010938:Plant Oils; D014280:Triglycerides; D002784:Cholesterol; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase
keywords: HDL; Hb; LDL; MUFA; PUFA; Rapeseed oil; Raspberry seed oil; Rats; SFA; SOD; Strawberry seed oil; TG; cGPX; glutathione peroxidase; haemoglobin; high-density fraction of cholesterol; low-density fraction of cholesterol; monounsaturated fatty acids; polyenoic fatty acids; saturated fatty acids; superoxide dismutase; triglyceride