Neural cell viability after exposure to ImK and ImK‐treated inflammatory supernatant. (A) Primary neurons, oligodendrocytes, astrocytes, and microglia viabilities were determined following treatment with varying concentrations of ImK ranging from 1 nM to 1 μM for 48 h (n = 4 for neurons, n = 6 for oligodendrocytes, n = 3 for astrocytes, n = 4 for microglia, P > 0.05 compared with the control). Neuron and oligodendrocyte viability (B) were quantified with exposure to different concentrations of ImK‐treated inflammatory supernatant for 48 h (n = 3, *P < 0.05,**P < 0.01)