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  • Title: Concentration and composition of the lipoprotein classes in human umbilical cord serum.
    Author: Winkler L, Schlag B, Goetze E.
    Journal: Clin Chim Acta; 1977 Apr 15; 76(2):187-91. PubMed ID: 193656.
    Abstract:
    The concentration and composition of the lipoprotein density classes d less than 1.006 (VLDL), d = 1.006 - 1.064 (LDL), and d = 1.064 - 1.21 (HDL) of human umbilical cord serum were investigated by means of preparative ultracentrifugation. The concentrations of all the density classes, in particular that of the VLDL, are lower than in adults; the values correspond to 8.1 (VLDL), 59.2 (LDL), and 77.4 (HDL) mg/100 ml. About 15% of the total cholesterol and roughly 40% of the total lipid phosphorus did not float at the highest density of 1.21. The composition of the LDL and the HDL was principally in agreement with the pattern obtained in adults. The VLDL of the cord serum, however, showed a lower amount of triglycerides (45%) and a higher content of proteins (22%) than the VLDL from serum of adults. In cord serum only 25% of the total triglycerides are associated with the VLDL fraction, while more than 50% of the triglycerides circulate as a constituent of the LDL.
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