Neuroprotective effects of antiepileptic drugs. 2002

Michał K Trojnar, and Robert Małek, and Magdalena Chrościńska, and Stanisław Nowak, and Barbara Błaszczyk, and Stanisław J Czuczwar
Department of Pathophysiology, Medical University, Jaczewskiego 8, PL 20-090 Lublin, Poland.

Experimental and clinical data indicate that epilepsy and seizures lead to neuronal cell loss and irreversible brain damage. This neurodegeneration results not only in the central nervous system dysfunction but may also be responsible for the decreased efficacy of some antiepileptic drugs (AEDs). The aim of this review was to assemble current literature data on neuroprotective properties of AEDs. The list of hypothetical neuroprotectants is long and consists of substances which act via different mechanisms. We focus on AEDs since this heterogeneous group of pharmaceuticals, as far as mechanisms of their action and mechanisms of neuronal death are concerned, should provide protection in addition to antiseizure effect itself. Most studies on neuroprotection are based on animal experimental models of neuronal degeneration. Electrically and pharmacologically evoked seizures as well as different models of ischemia are frequently used. Although our knowledge about properties of AEDs is still not complete and discrepancies occasionally occur, the group seems to be promising in terms of neuroprotection. Some of the drugs, though, turn out to be neutral or even have adverse effects on the central nervous system, especially on immature brain tissue (barbiturates and benzodiazepines). Unfortunatelly, we cannot fully extrapolate animal data to humans, therefore further well designed clinical trials are necessary to determine neuroprotective properties of AEDs in humans. However, there is a hope that AEDs will have a potential to serve as neuroprotectants not only in seizures, but perhaps, in other neurodegenerative conditions in humans as well. The novel AEDs (especially lamotrigine, tiagabine, and topiramate) seem particularly promising.

UI MeSH Term Description Entries
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
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
D016923 Cell Death The termination of the cell's ability to carry out vital functions such as metabolism, growth, reproduction, responsiveness, and adaptability. Death, Cell
D018696 Neuroprotective Agents Drugs intended to prevent damage to the brain or spinal cord from ischemia, stroke, convulsions, or trauma. Some must be administered before the event, but others may be effective for some time after. They act by a variety of mechanisms, but often directly or indirectly minimize the damage produced by endogenous excitatory amino acids. Neuroprotectant,Neuroprotective Agent,Neuroprotective Drug,Neuroprotectants,Neuroprotective Drugs,Neuroprotective Effect,Neuroprotective Effects,Agent, Neuroprotective,Agents, Neuroprotective,Drug, Neuroprotective,Drugs, Neuroprotective,Effect, Neuroprotective,Effects, Neuroprotective

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