6533b7d9fe1ef96bd126cdb0

RESEARCH PRODUCT

Tiagabine, a gamma-amino-butyric acid transporter inhibitor impairs spatial learning of rats in the Morris water-maze.

Ulrich SchmittChristoph Hiemke

subject

MaleGABA Plasma Membrane Transport ProteinsSynaptic cleftTiagabinemedicine.medical_treatmentNipecotic AcidsMorris water navigation taskOrganic Anion TransportersPharmacologyBehavioral Neurosciencechemistry.chemical_compoundMemorymedicineGABA transporterAnimalsNeurotransmitterMaze LearningTiagabineSalineGABA AgonistsSwimmingbiologyMembrane ProteinsMembrane Transport ProteinsTransporterRats Inbred StrainsReceptors GABA-ARatschemistrybiology.proteinReuptake inhibitorCarrier ProteinsNeurosciencemedicine.drug

description

Abstract γ-Amino-butyric acid (GABA) is cleaved from the synaptic cleft by uptake via specific transporters. Inhibition of such transporters increases the effectiveness of physiologically released GABA. Increased GABAergic neurotransmission has an impact on learning and memory. Therefore, effects of tiagabine, a GABA-transporter inhibitor, were investigated on spatial orientation in the Morris water-maze. Rats were given four training trials per day for 4 days and a probe trial without platform on the 5th day. Compared to saline treated rats, rats treated daily with 20 mg/kg tiagabine showed impaired learning during the acquisition trials. Retrieval was impaired in rats treated only at the probe trial with tiagabine. These results further elucidate the role of GABA in learning and memory.

yearjournalcountryeditionlanguage
2002-07-01Behavioural brain research
10.1016/s0166-4328(02)00008-6https://pubmed.ncbi.nlm.nih.gov/12110474