As expected, microglia isolated from the ipsilateral stroke brain are activated in comparison to contralateral control microglia as demonstrated by an approximately two‐fold increase in cell capacitances (Table 4) and displayed significantly higher current amplitudes and densities for P2X4, Kv1.3, and Kir2.1 (Figure 7c–e, Table 4). This evidence concerns the gene P2RX4 and stroke disorder.