Biomaterial Database

Effects of the antiepileptic drug felbamate on long-term potentiation in the CA1 region of rat hippocampal slices. 1996

A M Pugliese, and R Corradetti

Dipartimento di Farmacologia Preclinica e Clinica Mario Aiazzi-Mancini Università di Firenze, Italy.

In the CA1 region of rat hippocampal slices, the antiepileptic drug 2-phenyl-1,3-propanediol dicarbamate (felbamate; 100-1300 microM) concentration-dependently decreased extracellularly recorded synaptic potentials. The effect was significant at 200 microM, and became maximal at 700 microM felbamate, with a 70% decrease in population spike amplitude and 25% reduction of dendritic field excitatory postsynaptic potential (fEPSP) slope. Both alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and N-methyl-D-aspartate (NMDA) receptor-mediated components of the fEPSP were decreased by 700 microM felbamate. Up to 300 microM felbamate did not affect long-term potentiation (LTP), whereas 500 microM decreased the magnitude of LTP. Higher concentrations of felbamate (700-1300 microM) blocked induction of somatic and dendritic LTP completely, but reversibly. It appears that the concentrations of felbamate which affect LTP are higher than those needed for its antiepileptic action.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011409	Propylene Glycols	Derivatives of propylene glycol (1,2-propanediol). They are used as humectants and solvents in pharmaceutical preparations.	Propanediols,Glycols, Propylene
D004305	Dose-Response Relationship, Drug	The relationship between the dose of an administered drug and the response of the organism to the drug.	Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D006624	Hippocampus	A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation.	Ammon Horn,Cornu Ammonis,Hippocampal Formation,Subiculum,Ammon's Horn,Hippocampus Proper,Ammons Horn,Formation, Hippocampal,Formations, Hippocampal,Hippocampal Formations,Hippocampus Propers,Horn, Ammon,Horn, Ammon's,Proper, Hippocampus,Propers, Hippocampus,Subiculums
D000078328	Felbamate	A PEGylated phenylcarbamate derivative that acts as an antagonist of NMDA RECEPTORS. It is used as an anticonvulsant, primarily for the treatment of SEIZURES in severe refractory EPILEPSY.	(3-Carbamoyloxy-2-phenyl-propyl) carbamate,2-Phenyl-1,3-propanediol dicarbamate,ADD-03055,Felbamyl,Felbatol,Taloxa,W-554,2 Phenyl 1,3 propanediol dicarbamate,ADD 03055,ADD03055,W 554,W554
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000927	Anticonvulsants	Drugs used to prevent SEIZURES or reduce their severity.	Anticonvulsant,Anticonvulsant Drug,Anticonvulsive Agent,Anticonvulsive Drug,Antiepileptic,Antiepileptic Agent,Antiepileptic Agents,Antiepileptic Drug,Anticonvulsant Drugs,Anticonvulsive Agents,Anticonvulsive Drugs,Antiepileptic Drugs,Antiepileptics,Agent, Anticonvulsive,Agent, Antiepileptic,Agents, Anticonvulsive,Agents, Antiepileptic,Drug, Anticonvulsant,Drug, Anticonvulsive,Drug, Antiepileptic,Drugs, Anticonvulsant,Drugs, Anticonvulsive,Drugs, Antiepileptic
D017208	Rats, Wistar	A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.	Wistar Rat,Rat, Wistar,Wistar Rats
D017774	Long-Term Potentiation	A persistent increase in synaptic efficacy, usually induced by appropriate activation of the same synapses. The phenomenological properties of long-term potentiation suggest that it may be a cellular mechanism of learning and memory.	Long Term Potentiation,Long-Term Potentiations,Potentiation, Long-Term,Potentiations, Long-Term
D048448	Phenylcarbamates	Phenyl esters of carbamic acid or of N-substituted carbamic acids. Structures are similar to PHENYLUREA COMPOUNDS with a carbamate in place of the urea.	Phenyl-Carbamates,Phenyl Carbamates