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Arzneimittelforschung 2010; 60(1): 1-11
DOI: 10.1055/s-0031-1296242
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Editio Cantor Verlag Aulendorf (Germany)

Cognitive effects of GABAergic antiepileptic drugs

Anna Czubak
1   Department of Pharmacoeconomics and Social Pharmacy, University of Medical Sciences in Poznan, Poznan, Poland
,
Elzbieta Nowakowska
1   Department of Pharmacoeconomics and Social Pharmacy, University of Medical Sciences in Poznan, Poznan, Poland
,
Kinga Burda
1   Department of Pharmacoeconomics and Social Pharmacy, University of Medical Sciences in Poznan, Poznan, Poland
,
Krzysztof Kus
1   Department of Pharmacoeconomics and Social Pharmacy, University of Medical Sciences in Poznan, Poznan, Poland
,
Jana Metelska
1   Department of Pharmacoeconomics and Social Pharmacy, University of Medical Sciences in Poznan, Poznan, Poland
› Author Affiliations
Further Information

Publication History

Publication Date:
02 December 2011 (online)

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Abstract

Many patients undergoing long-term treatment of epilepsy complain of memory disorders, which entail worse quality of life. The risk factors generating memory disorders include: morphological brain damage, the duration and course of epileptic seizures (conscience disorders), the time of diagnosis (the risk is greater if epileptic seizures start early in life), drug resistance, the presence of interseizure changes in the EEG in the form of sharp-wave discharges or sharp spike-wave/slow spike-wave complexes and improper pharmacotherapy (exceeding the admissible concentration of drugs in blood serum, polytherapy).

GABAergic neurotransmission of older antiepileptic drugs (barbiturates, benzodiazepines) makes them particularly prone to produce modest, but statistically significant disruption of cognitive processes. This explains the search for new antiepileptic drugs that will improve, or at least not impair, cognitive functions. The improvement of cognitive functions by new generation antiepileptic drugs results, among others, from their non-GA-BAergic mechanisms: they influence the ion channels and glutaminergic transmission.

Key words

Antiepileptic drugs - Cognitive effects - GABA
 

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