Fig. 5.
Dantrolene prevents the development of SREDs 24 and 48 h after SE but does not inhibit SREDs acutely. Representative current-clamp trace from control neuron (A), low Mg2+ -treated neuron displaying characteristic SREDs (B), and neurons treated with low Mg2+ then dantrolene (50 µm) at both 24 h (C) and 48 h (D) after treatment and were devoid of SREDs. Dantrolene did not inhibit SRED activity when added acutely to neurons displaying SREDs (n = 12–15 culture plates with a minimum of threee neurons recorded from each plate).