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  • Title: Erythrocyte membrane in rats fed high erucic acid-containing mustard oil: osmotic fragility, lipid composition, and (Na+, K+)- and (Ca2+, Mg2+)-ATPases.
    Author: Vajreswari A, Rao PS, Kaplay SS, Tulpule PG.
    Journal: Biochem Med; 1983 Feb; 29(1):74-84. PubMed ID: 6301424.
    Abstract:
    Erythrocyte hemolytic properties, cholesterol/phospholipid ratios, fatty acid composition, and activities of the membrane-bound enzymes (Na+, K+)- and (Ca2+, Mg2+)-ATPase were studied in male and female rats fed low erucic acid rapeseed (LEAR) and high erucic acid mustard oils (HEAM) for a period of 16 months. Rats receiving groundnut oil (GNO) served as controls. Erythrocytes from HEAM-receiving male and female rats showed increased resistance to hypotonic hemolysis. In male rats this was associated with an 85% increase (P less than 0.07) in the cholesterol/phospholipid molar ratio. The fatty acid double-bond index showed an increase in male rats receiving HEAM as well as LEAR oils. In the erythrocytes from female rats, the cholesterol/phospholipid molar ratio and double bond index remained unaffected. Specific activity of ouabain-sensitive (Na+, K+)-ATPase showed a small (+20%) but significant (P less than 0.05) increase in male but not female rats of HEAM group. Total (Na+, K+)-ATPase, ouabain-insensitive component, and (Ca2+, Mg2+)-ATPase were not altered in rats receiving LEAR or HEAM.
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