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Figure 1

Chemical structure of 1,4-DHP derivatives included in this review
Chemical structure of 1,4-DHP derivatives included in this review

Figure 2

Protective effects of nitrendipine against pTZ57R DNA plasmid damage caused by Fenton reaction products. The pTZ57R DNA plasmid (1.4 μg) was incubated for 30 min with 0.003 % H2O2 in 0.01 mmol/L FeSO4 with no or 5, 10, 25, 50 or 100 µmol/L nitrendipine And electrophoresed following the standard procedure. NK – negative control
Protective effects of nitrendipine against pTZ57R DNA plasmid damage caused by Fenton reaction products. The pTZ57R DNA plasmid (1.4 μg) was incubated for 30 min with 0.003 % H2O2 in 0.01 mmol/L FeSO4 with no or 5, 10, 25, 50 or 100 µmol/L nitrendipine And electrophoresed following the standard procedure. NK – negative control

Figure 3

Protective effects of AV-153-Na (50 nmol/L) against DNA oxidative damage caused by the DUX4 protein in the HeLa cell line. *p<0.05 vs DUX4. ###p<0.001 vs DUX4 + peroxynitrite. A.U. – arbitrary units; GFP – transfection control
Protective effects of AV-153-Na (50 nmol/L) against DNA oxidative damage caused by the DUX4 protein in the HeLa cell line. *p<0.05 vs DUX4. ###p<0.001 vs DUX4 + peroxynitrite. A.U. – arbitrary units; GFP – transfection control

Comparison of some properties of studied 1,4-DHP derivatives (11, 12, 15, 20, 25)

1,4-DHP derivative DNA binding constant (UV/VIS spectroscopy) (M-1) Stern-Volmer binding constant (EtBr extrusion) (M-1) DNA binding constant (spectrofluorimetry) (M-1) Effect on hydroxyl radical production (EPR; %) Peroxynitrite decomposition time compared to control Decrease in DNA damage in HeLa cells by peroxynitrite after pre-incubation with 10 nmol/L of a 1,4-DHP (%)
AV-153-Na 7.21328×104 9.4×104 4.40×105 96.8 0.75 50
AV-153-Ca 1.7×105 4.04×105 3.44 57
AV-153-Mg 2.3×105 5.43×105 7.52 NS
AV-153-Li 9.9×104 3.32×105 3.48 NS
AV-153-K 8.7×104 2.70×105 3.13 19
AV-153-Rb 8.9×104 3.07×105 3.00 14
AV-154-Na No binding 98.7 0.29 NS
Carbatone 1.09×102 100 N/A
Metcarbatone 0.82×102 3.8×102 31.4
Etcarbatone 0.54×102 9.5×102 98.3
Propcarbatone 1.11×102 86.4
Styrylcarbatone 1.9×103 ? 1.4×104 106
Glutapyrone No binding 27
Cerebrocrast 2.2×103 8.61 29
Etaftorone 2.25 27*
Fenoftorone 2.28
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