Table 3.

Characterization of native LDL (nLDL) and oxidized LDL (oxLDL). Low-density lipoproteins isolated from a patient with FH who had undergone LA (native LDL) were oxidized in vitro (oxLDL) in the presence of 5 µM of copper (II) sulfate for 24 h.

Parameter	Lipoprotein
	nLDL	oxLDL
TBARS (nmol/mg LDL protein)	0.92 ± 0.16	6.36 ± 0.64 *
Conjugated dienes (OD at λ = 234 nm)	0.49 ± 0.02	1.59 ± 0.03 *
Free ε-amino groups (nmol/mg LDL protein)	400.40 ± 13.62	149.10 ± 28.86 *

Abbreviations: TBARS, thiobarbituric-acid-reactive substances; nLDL, native LDL; oxLDL, oxidized LDL. Results are expressed as means ± standard error of the means (n = 4 per group). * p < 0.0001 (unpaired t-test).