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. 2022 Jun 30;13:901571. doi: 10.3389/fphys.2022.901571

TABLE 4.

IC50 (μM) and p-values for the HCN4 inhibitors.

IC50 (μM) P
Ivabradine HsHCN4 37.6 ± 25.6 0.958 (Hs4 vs Dr4)
DrHCN4 30.9 ± 15.3 0.674 (Dr4 vs Dr4L) 0.544 (Hs4 vs Dr4L)
DrHCN4L 10.4 ± 2.6
ZD7288 HsHCN4 167 ± 56 0.255 (Hs4 vs Dr4)
DrHCN4 699 ± 216 0.950 (Dr4 vs Dr4L) 0.435 (Hs4 vs Dr4L)
DrHCN4L 596 ± 383
Cesium ion HsHCN4 68.8 ± 14.0 0.297 (Hs4 vs Dr4)
DrHCN4 44.3 ± 11.2 0.964 (Dr4 vs Dr4L) 0.420 (Hs4 vs Dr4L)
DrHCN4L 48.3 ± 6.9