Table 2.
CBMN-cyt assay parameters and plasma 8-OHdG levels of patients with dyslipidemia before and after treatment with statins and of control subjects. Data are given as median (min–max).
Control subjects (n = 20) | Before treatment with statins (n = 30) | After treatment with statins (n = 30) | P valuea | P valueb | P valuec | |
---|---|---|---|---|---|---|
Frequency of MN (%) | 0.75 (0.10–1.60) | 1.70 (0.70–7.50) | 0.75 (0.10–2.80) | <0.001 | 0.612 | <0.001 |
Frequency of NPBs (%) | 0.50 (0.10–1.30) | 0.45 (0.00–3.10) | 0.30 (0.00–1.00 | 0.329 | <0.05 | <0.05 |
Frequency of NBUDs (%) | 0.25 (0.10–0.50) | 0.20 (0.00–1.00) | 0.20 (0.00–0.90) | 0.919 | 0.410 | 0.147 |
Frequency of apoptotic cells (%) | 0.80 (0.10–1.80) | 1.05 (0.40–2.40) | 0.90 (0.30–2.00) | <0.05 | 0.296 | <0.001 |
Frequency of necrotic cells (%) | 1.35 (0.10–1.90) | 1.40 (0.20–2.60 | 1.00 (0.20–2.30) | 0.538 | 0.180 | <0.001 |
Frequency of BN cells (%) | 29.90 (10.60–50.10) | 41.80 (11.6–120.20) | 28.45 (9.60–78.00) | <0.05 | 0.890 | <0.01 |
NDI | 1.26 (1.11–1.44) | 1.35 (1.11–1.85) | 1.24 (1.09–1.46) | <0.05 | 0.781 | <0.01 |
Plasma 8-OHdG levels (ng/mL) | 0.69 (0.44–1.02) | 1.34 (0.33–1.99) | 1.18 (0.56–2.25) | <0.01 | <0.001 | 0.957 |
BN cells: binucleated cells; MN: micronucleus; NBUDs: nuclear buds; NDI: nuclear division index; NPBs: nucleoplasmic bridges; 8-OHdG: 8-hydroxy-2′-deoxyguanosine.
NDI = [M1 + 2(M2) + 3(M3) + 4(M4)]/N, where M1–M4 represents the total number of lymphocytes with one to four nuclei scored on 1000 viable cells (excluding necrotic and apoptotic cells; M: the number of nuclei; N: the total number of viable cells scored).
ap value when the comparisons are between the control and before treatment with statin values (Mann–Whitney U test).
bp value when the comparisons are between the control and after treatment with statin values (Mann–Whitney U test).
cp value when the comparisons are between the before treatment and after treatment with statin values (Wilcoxon test).