Literature DB >> 2177868

The actions of 2-hydroxy-saclofen at presynaptic GABAB receptors in the rat hippocampus.

N L Harrison1, D M Lovinger, N A Lambert, T J Teyler, R Prager, J Ong, D I Kerr.   

Abstract

The actions of 2-hydroxy-saclofen (2-OH-S), a recently developed analog of baclofen, were studied at presynaptic GABAB receptors in the rat hippocampal slice. Baclofen (0.5-20 microM) reduces the amplitude of excitatory postsynaptic potentials (EPSPs) recorded from hippocampal CA1 pyramidal neurons. In the presence of 200-500 microM 2-OH-S, the synaptic depressant action of baclofen is significantly reduced. These data show that 2-OH-S is an effective antagonist at presynaptic GABAB receptors on excitatory terminals in the hippocampus.

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Year:  1990        PMID: 2177868     DOI: 10.1016/0304-3940(90)90851-y

Source DB:  PubMed          Journal:  Neurosci Lett        ISSN: 0304-3940            Impact factor:   3.046


  9 in total

1.  GABAB receptors role in cell migration and positioning within the ventromedial nucleus of the hypothalamus.

Authors:  K M McClellan; A R Calver; S A Tobet
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2.  Electrophysiological actions of GABAB agonists and antagonists in rat dorso-lateral septal neurones in vitro.

Authors:  C Bon; M Galvan
Journal:  Br J Pharmacol       Date:  1996-06       Impact factor: 8.739

3.  The modulation of rat hippocampal synaptic conductances by baclofen and gamma-aminobutyric acid.

Authors:  K W Yoon; S M Rothman
Journal:  J Physiol       Date:  1991-10       Impact factor: 5.182

4.  The role of GABAB receptors in mediating the stimulatory effects of ethanol in mice.

Authors:  R E Humeniuk; J M White; J Ong
Journal:  Psychopharmacology (Berl)       Date:  1993       Impact factor: 4.530

5.  Paradoxical enhancement by bicuculline of dentate granule cell IPSPs evoked by fimbria stimulation in rat hippocampal slices.

Authors:  H E Scharfman
Journal:  Neurosci Lett       Date:  1994-02-28       Impact factor: 3.046

6.  Kainic acid-induced seizures enhance dentate gyrus inhibition by downregulation of GABA(B) receptors.

Authors:  K Z Haas; E F Sperber; S L Moshé; P K Stanton
Journal:  J Neurosci       Date:  1996-07-01       Impact factor: 6.167

7.  Bicuculline-resistant paired-pulse inhibition in the rat hippocampal slice.

Authors:  M J Higgins; T W Stone
Journal:  Br J Pharmacol       Date:  1993-08       Impact factor: 8.739

8.  4-Aminopyridine and low Ca2+ differentiate presynaptic inhibition mediated by neuropeptide Y, baclofen and 2-chloroadenosine in rat hippocampal CA1 in vitro.

Authors:  G J Klapstein; W F Colmers
Journal:  Br J Pharmacol       Date:  1992-02       Impact factor: 8.739

9.  The role of GABAA and GABAB receptors in presynaptic inhibition of Ia EPSPs in cat spinal motoneurones.

Authors:  G J Stuart; S J Redman
Journal:  J Physiol       Date:  1992-02       Impact factor: 5.182

  9 in total

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