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  • Title: [Concentration and composition of serum lipoproteins in the fetal rat].
    Author: Schlag B, Winkler L.
    Journal: Acta Biol Med Ger; 1978; 37(2):233-7. PubMed ID: 212910.
    Abstract:
    1. Concentration and composition of the "very low density lipoproteins" (VLDL), "low density lipoproteins" (LDL) and "high density lipoproteins" (HDL) and of non-floatable lipids of fetal rat serum (day 22 of pregnancy) were determined by ultracentrifugation, thin-layer chromatographic separation of the floated lipids and quantitation of the lipid and protein moiety. 2. The concentration of VLDL is in the fetal rat by one order of magnitude lower, and that of LDL, 5fold higher than in the adult animal; the concentration of HDL in fetal serum amounts to 60% of the value of adult animals. 3. The composition of LDL and HDL of fetal serum does not differ from that in the serum of adult animals; in contrast, the fetal VLDL have a higher proportion of protein and cholesterol and a lower proportion of triglycerides than the VLDL of adult serum. The electrophoretic mobility of the fetal VLDL is lower than that of adult VLDL.
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