RT Journal Article
SR Electronic
T1 Measurement of 5-hydroxy-2-aminovaleric acid as a specific marker of metal catalysed oxidation of proline and arginine residues of low density lipoprotein apolipoprotein B-100 in human atherosclerotic lesions
JF Journal of Clinical Pathology
JO J Clin Pathol
FD BMJ Publishing Group Ltd and Association of Clinical Pathologists
SP 622
OP 623
DO 10.1136/jcp.56.8.622
VO 56
IS 8
A1 Pietzsch, J
A1 Bergmann, R
YR 2003
UL http://jcp.bmj.com/content/56/8/622.abstract
AB γ-Glutamyl-semialdehyde (γGSA) is a major product of the metal catalysed oxidation of apolipoprotein B-100 (apoB-100) proline and arginine residues. On reduction, γGSA forms 5-hydroxy-2-aminovaleric acid (HAVA). This report describes the application of HAVA measurement to characterise the formation of γGSA in low density lipoprotein (LDL) recovered from human atherosclerotic lesions. HAVA concentrations were greatly increased in LDL from early (mean, 10.25; SD, 3.49 mol/mol apoB-100; p < 0.01), intermediate (mean, 11.18; SD, 2.37 mol/mol apoB-100; p < 0.01), and advanced (mean, 9.91; SD, 2.15 mol/mol apoB-100; p < 0.01) lesions, when compared with LDL from normal aortic tissue (mean, 0.05; SD, 0.01 mol/mol apoB-100). These findings support the hypothesis that pathways involving metal catalysed oxidation of LDL apoB-100 are of pathological importance in atherogenesis.