PL
Badano wpływ ołowiu i oleju wiesiołkowego na lipidy surowicy krwi i wątroby szczurów karmionych dietą aterogenną. Zarówno ołów, jak i olej spowodowały wzrost stężenia cholesterolu całkowitego w surowicy i wątrobie, obniżenie ilości triglicerydów i wolnych kwasów tłuszczowych w surowicy oraz zwiększenie udziału kwasu linolowego i arachidonowego w składzie kwasów tłuszczowych surowicy i wątroby.
EN
The effects of lead (Pb) and Oenothera paradoxa oil (OW) on blood serum and liver lipids metabolism in rats were investigated. Four groups of Buffalo rats (5 male and 5 female rats in each group) were maintained for 8 weeks on atherogenic diet. Group 1 was the control. Starting with the fourth week of the experiment, group 3 (Pb) and 4 (OW+Pb) received a solution of 40 mg Pb/1 lead acetate in drinking water (mean daily Pb intake was 50 mg/kg b.w. for the males and 400 mg/kg b.w for the females); at the same time, the animals of groups 2 (OW) and 4 (OW+Pb) received intragastrically a daily dose of 300 mg/rat/day OW in the form of Oeparol (Agropharm Co.) preparation. Total cholesterol, HDL cholesterol, and triglyceride levels were determined in blood serum by the Human Co. tests, while free fatty acids were determined by the Duncome method. Total cholesterol and triglyceride levels were also determined in liver extracts using the same methods. Oenothera paradoxa oil in rats (group OW) increased serum and liver total cholesterol concentrations, decreased serum and liver triglyceride levels, lowered serum free fatty acids contents and increased serum and liver gamma- linolenic, linolenic and arachidonic acid levels. Lead (group Pb) had a similar effect on serum lipids as OW, while in liver it merely decreased the level of total cholesterol. Pb increased the level of liver linolenic and arachidonic acids without causing an increase in gamma-linolenic acid level. Lead intoxication of the rats receiving OW (group Pb+OW) did not significantly change the effect of the oil on the levels of total cholesterol, gamma-linolenic, linolenic and arachidonic acids in blood serum and liver, but reduced the effect of OW on liver triglycerides and increased its hypotriglyceridemic activity in blood serum.