Sodium Valproate Increases Potassium Conductance in Aplysia Neurons
- 1 August 1978
- Vol. 19 (4) , 379-384
- https://doi.org/10.1111/j.1528-1157.1978.tb04504.x
Abstract
Summary: Sodium valproate (VPA), an anticonvulsant currently undergoing clinical trials in the United States, hyperpolarizes the resting membrane potential of the silent giant cell, R2, in the marine mollusk, Aplysia californica. The hyperpolarization results from an increase in membrane conductance to potassium.RÉSUMÉ: Le dipropylacétate de sodium anticonvulsivant en cours d' essais cliniques aux U.S.A., provoque une hyperpolarisation du potentiel membranaire de repos du neurone geant R 2, du mollusque marin Aplysia Californka. Cette hyperpolarisation est due a une augmentation de la conductance membranaire au potassium.RESUMEN: El valproato sódico (VPA), un anticonvulsive actualmente utilizado en ensayos clinicos en los Estados Unidos, hiperpolariza el potencial de reposo de la membrana de celulas gigantes silenciosas, R2, del molusco marino Aplysia californica. La hiperpolari‐zación resulta de un aumento en la conductancia de la membrana para el potasio.ZUSAMMENFASSUNG: Natriumvalproat (VPA), das zur Zeit in den Vereinigten Staaten als Antikonvulsivum klinisch gepruft wird, hyperpolarisiert das Ruhepotential der Membran der ruhenden Riesenzelle R2 beim See‐molusken Aplysia californica. Die Hyperpolarisation hat ihren Ursprung in einer Erhöhung der Membranleitfähigkeit für Kalium.Keywords
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