Abstract
Diphenylhydantoin effect on excitability in the molluscan giant neuron was investigated. This model of neuronal excitability was convenient for investigating drug mechanisms because the giant somata of these neurons have multiple current systems and can be voltage clamped. Current and voltage clamp methods were used to quantitate firing frequency and the slow membrane currents associated with changes in firing rate. Diphenylhydantoin enhanced the early rapid deceleration of firing of the cell in response to depolarizing current and blocked an early show inward current.
JPET articles become freely available 12 months after publication, and remain freely available for 5 years.Non-open access articles that fall outside this five year window are available only to institutional subscribers and current ASPET members, or through the article purchase feature at the bottom of the page.
|
Log in using your username and password
Purchase access
You may purchase access to this article. This will require you to create an account if you don't already have one.