The influence of L-carnitine on the content of malondialdehyde in native and oxidized LDL (n = 6). Statistically significant differences for p <0.05: 1 h: 1–3,4; 2–4; 3–4, 2 h: 1–2,3,4; 2–4; 3–4, 4 h: 1–2,3,4; 2–4; 3–4, 6 h: 1–2,3,4; 2–4; 3–4, 18 h: 1–2,3,4; 2–4; 3–4.