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Rapamycin: Brain Excitability Studied in vitro
Author(s) -
Daoud Delchad,
Scheld Hans H.,
Speckmann ErwinJosef,
Gorji Ali
Publication year - 2007
Publication title -
epilepsia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.687
H-Index - 191
eISSN - 1528-1167
pISSN - 0013-9580
DOI - 10.1111/j.1528-1167.2006.00976.x
Subject(s) - calcineurin , neurotoxicity , excitatory postsynaptic potential , pharmacology , hippocampal formation , tacrolimus , neuroscience , medicine , chemistry , biology , toxicity , inhibitory postsynaptic potential , transplantation
Summary: Neurological complications are common in transplant recipients treated with immunosuppressant calcineurin inhibitors. Rapamycin, a macrolide antibiotic, was suggested as an alternative agent in patients who develop calcineurin inhibitor associated neurotoxicity, including seizure attacks. The aim of the present study was to test the effect of rapamycin on the bioelectrical activity and evoked field excitatory postsynaptic potentials (fEPSP) in CA1 area of hippocampal tissues and compare its effect with FK506, a calcineurin inhibitor agent. Application of rapamycin at different concentrations neither affected the bioelectrical activity nor changed fEPSP magnitude. In contrast, FK506 elicited epileptiform burst discharges and significantly enhanced fEPSP magnitude. This study supports the suggestion that rapamycin could be used as an alternative to calcineurin inhibitors in the event of neurotoxicity.