Journal of Lipid Research, Vol 28, 1521-1524, Copyright © 1987 by Lipid Research, Inc.
Preparation of apoE-free rat low density lipoprotein for catabolic studies
B Schlag, L Winkler, D Plonne, U Durer and R Dargel
Institute of Pathological Biochemistry, Friedrich Schiller University, Jena, GDR.
The use of serum from rat fetuses instead of serum from adult rats for
preparation of LDL by preparative ultracentrifugation leads to an LDL
fraction containing apoB-100 and apoB-95 as the only protein moieties
without need for any further purification. The yield of LDL is five times
greater compared to the use of adult rat serum. Lipid composition and
particle size of LDL from fetal and adult rats are quite similar. The
method described allows a simple way for preparation of sufficient amounts
of apoE-free LDL for use in metabolic studies.