Extracts from plants used by the Kwakwaka’wakw First Nations peoples in their traditional botanical medicine practices rescue the function of ion channel proteins carrying mutations that cause human episodic ataxia, the researchers report. “Episodic Ataxia 1 (EA1) is a movement disorder caused by inherited mutations in the human KCNA1 gene, which encodes Kv1.1, a voltage-gated potassium channel...