Fig. 3.

Loss of Kir4.1 inhibits K⁺ and glutamate uptake. (a,b) Patch-clamp recordings were obtained in astrocytes in slices from the ventral respiratory group in wildtype and Kir4.1 knockout animals. Application of 50 mM K⁺ induced an inward current in wildtype astrocytes but not in astrocytes from Kir4.1 knockout mice (*p < 0.05). [(a,b) With permission from Neusch et al. 2006; (c,d) With permission from Djukic et al. 2007].