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Pre‐ and Post‐weaning diets with low omega‐6 to omega‐3 fatty acid ratio reduced plasma lipid levels and increased cholesterol efflux capacity in the offspring of C57BL/6 mice
Author(s) -
Balogun Kayode Adeniyi,
Randunu Raniru Sergaevna,
Cheema Sukhinder Kaur
Publication year - 2012
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.26.1_supplement.266.7
Subject(s) - offspring , weaning , nefa , endocrinology , medicine , cholesterol , biology , polyunsaturated fatty acid , fatty acid , pregnancy , biochemistry , genetics , insulin
We investigated whether maternal and post‐weaning dietary ratios of omega (n)‐6 to n‐3 PUFA alter lipid metabolism of the offspring and whether the effects are gender specific. Female C57BL/6 mice were fed semi‐purified diets (20% w/w fat) containing n‐6 to n‐3 PUFA ratios of 5:1, 15:1 or 30:1 before mating, during pregnancy, and until weaning. Offspring were continued on their mothers’ diets for 4 months. Plasma lipid profile of the offspring was measured at weaning and at 4 months. HDL cholesterol efflux capacity of plasma was assayed using J774 cells. Male offspring from 5:1 group had a relatively lower plasma cholesterol at weaning and at 4 months (p<0.05). At weaning, the male offspring showed no difference in plasma triglyceride (TAG) and nonesterified fatty acids (NEFA) however there was a relative reduction at 4 months in the 5:1 group (p<0.001). Females in the 5:1 group had a relatively lower TAG and NEFA at weaning and at 4 months (p<0.05). The 15:1 females had lower LDL‐cholesterol at weaning and at 4 months; 5:1 males had lower levels at weaning with no differences at 4 months. HDL‐cholesterol was the same in all the groups; however plasma from the 5:1 males showed higher cholesterol efflux compared to 30:1 (p < 0.05). Our data suggest that maternal diets low in n‐6 to n‐3 PUFA ratio reduce plasma lipid levels, the effect is enhanced if the post‐weaning diet is the same and there are gender differences. Supported by NSERC Grant Funding Source : NSERC