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A, whole‐cell voltage clamp recordings obtained at different bath pH from an EGFP‐expressing NTS neuron in a brainstem slice. Acidification decreases holding current and alkalization produces a reversible outward shift in holding current. B, average I–V relationship of the pH‐sensitive current (pH 7.8 to pH 6.8). Note that the reversible potential of pH‐sensitive current is approximately −85 mV.
